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

   1 /*
   2  * QLogic qlcnic NIC Driver
   3  * Copyright (c)  2009-2010 QLogic Corporation
   4  *
   5  * PCI searching functions pci_get_domain_bus_and_slot & pci_channel_offline
   6  * Copyright (C) 1993 -- 1997 Drew Eckhardt, Frederic Potter,
   7  *                                      David Mosberger-Tang
   8  * Copyright (C) 1997 -- 2000 Martin Mares <mj@ucw.cz>
   9  * Copyright (C) 2003 -- 2004 Greg Kroah-Hartman <greg@kroah.com>.
  10  *
  11  * See LICENSE.qlcnic for copyright and licensing details.
  12  */
  13
  14 #include <linux/vmalloc.h>
  15 #include <linux/interrupt.h>
  16
  17 #include "qlcnic.h"
  18 #include "qlcnic_hw.h"
  19
  20 #include <linux/swab.h>
  21 #include <linux/dma-mapping.h>
  22 #include <linux/if_vlan.h>
  23 #include <net/ip.h>
  24 #include <linux/ipv6.h>
  25 #include <linux/inetdevice.h>
  26 #include <linux/aer.h>
  27 #include <linux/log2.h>
  28
  29 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  30 MODULE_LICENSE("GPL");
  31 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  32 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  33
  34 char qlcnic_driver_name[] = "qlcnic";
  35 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  36         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  37
  38 static int qlcnic_mac_learn;
  39 module_param(qlcnic_mac_learn, int, 0444);
  40 MODULE_PARM_DESC(qlcnic_mac_learn, "Mac Filter (0=disabled, 1=enabled)");
  41
  42 int qlcnic_use_msi = 1;
  43 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
  44 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
  45
  46 int qlcnic_use_msi_x = 1;
  47 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
  48 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
  49
  50 int qlcnic_auto_fw_reset = 1;
  51 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
  52 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
  53
  54 int qlcnic_load_fw_file;
  55 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
  56 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
  57
  58 int qlcnic_config_npars;
  59 module_param(qlcnic_config_npars, int, 0444);
  60 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
  61
  62 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  63 static void qlcnic_remove(struct pci_dev *pdev);
  64 static int qlcnic_open(struct net_device *netdev);
  65 static int qlcnic_close(struct net_device *netdev);
  66 static void qlcnic_tx_timeout(struct net_device *netdev);
  67 static void qlcnic_attach_work(struct work_struct *work);
  68 static void qlcnic_fwinit_work(struct work_struct *work);
  69 static void qlcnic_fw_poll_work(struct work_struct *work);
  70 #ifdef CONFIG_NET_POLL_CONTROLLER
  71 static void qlcnic_poll_controller(struct net_device *netdev);
  72 #endif
  73
  74 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  75 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
  76 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  77
  78 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  79 static irqreturn_t qlcnic_intr(int irq, void *data);
  80 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  81 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  82 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  83
  84 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  85 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  86
  87 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  88 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  89 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  90 static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
  91                                 struct qlcnic_esw_func_cfg *);
  92 static int qlcnic_vlan_rx_add(struct net_device *, u16);
  93 static int qlcnic_vlan_rx_del(struct net_device *, u16);
  94
  95 #define QLCNIC_IS_TSO_CAPABLE(adapter)  \
  96         ((adapter)->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO)
  97
  98 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  99 {
 100         struct qlcnic_hardware_context *ahw = adapter->ahw;
 101
 102         if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
 103                 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
 104         else
 105                 return 1;
 106 }
 107
 108 /*  PCI Device ID Table  */
 109 #define ENTRY(device) \
 110         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 111         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 112
 113 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 114         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 115         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 116         {0,}
 117 };
 118
 119 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 120
 121
 122 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 123 {
 124         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 125 }
 126
 127 static const u32 msi_tgt_status[8] = {
 128         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 129         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 130         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 131         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 132 };
 133
 134 static const u32 qlcnic_reg_tbl[] = {
 135         0x1B20A8,       /* PEG_HALT_STAT1 */
 136         0x1B20AC,       /* PEG_HALT_STAT2 */
 137         0x1B20B0,       /* FW_HEARTBEAT */
 138         0x1B2100,       /* LOCK ID */
 139         0x1B2128,       /* FW_CAPABILITIES */
 140         0x1B2138,       /* drv active */
 141         0x1B2140,       /* dev state */
 142         0x1B2144,       /* drv state */
 143         0x1B2148,       /* drv scratch */
 144         0x1B214C,       /* dev partition info */
 145         0x1B2174,       /* drv idc ver */
 146         0x1B2150,       /* fw version major */
 147         0x1B2154,       /* fw version minor */
 148         0x1B2158,       /* fw version sub */
 149         0x1B219C,       /* npar state */
 150         0x1B21FC,       /* FW_IMG_VALID */
 151         0x1B2250,       /* CMD_PEG_STATE */
 152         0x1B233C,       /* RCV_PEG_STATE */
 153         0x1B23B4,       /* ASIC TEMP */
 154         0x1B216C,       /* FW api */
 155         0x1B2170,       /* drv op mode */
 156         0x13C010,       /* flash lock */
 157         0x13C014,       /* flash unlock */
 158 };
 159
 160 static const struct qlcnic_board_info qlcnic_boards[] = {
 161         {0x1077, 0x8020, 0x1077, 0x203,
 162          "8200 Series Single Port 10GbE Converged Network Adapter"
 163          "(TCP/IP Networking)"},
 164         {0x1077, 0x8020, 0x1077, 0x207,
 165          "8200 Series Dual Port 10GbE Converged Network Adapter"
 166          "(TCP/IP Networking)"},
 167         {0x1077, 0x8020, 0x1077, 0x20b,
 168          "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter"},
 169         {0x1077, 0x8020, 0x1077, 0x20c,
 170          "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter"},
 171         {0x1077, 0x8020, 0x1077, 0x20f,
 172          "3200 Series Single Port 10Gb Intelligent Ethernet Adapter"},
 173         {0x1077, 0x8020, 0x103c, 0x3733,
 174          "NC523SFP 10Gb 2-port Server Adapter"},
 175         {0x1077, 0x8020, 0x103c, 0x3346,
 176          "CN1000Q Dual Port Converged Network Adapter"},
 177         {0x1077, 0x8020, 0x1077, 0x210,
 178          "QME8242-k 10GbE Dual Port Mezzanine Card"},
 179         {0x1077, 0x8020, 0x0, 0x0, "cLOM8214 1/10GbE Controller"},
 180 };
 181
 182 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 183 #define QLC_MAX_SDS_RINGS       8
 184
 185 static const
 186 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 187
 188 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 189 {
 190         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 191
 192         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 193
 194         return recv_ctx->sds_rings == NULL;
 195 }
 196
 197 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 198 {
 199         if (recv_ctx->sds_rings != NULL)
 200                 kfree(recv_ctx->sds_rings);
 201
 202         recv_ctx->sds_rings = NULL;
 203 }
 204
 205 static int
 206 qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 207 {
 208         u8 mac_addr[ETH_ALEN];
 209         struct net_device *netdev = adapter->netdev;
 210         struct pci_dev *pdev = adapter->pdev;
 211
 212         if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
 213                 return -EIO;
 214
 215         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 216         memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
 217         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 218
 219         /* set station address */
 220
 221         if (!is_valid_ether_addr(netdev->perm_addr))
 222                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 223                                         netdev->dev_addr);
 224
 225         return 0;
 226 }
 227
 228 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 229 {
 230         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 231         struct sockaddr *addr = p;
 232
 233         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 234                 return -EOPNOTSUPP;
 235
 236         if (!is_valid_ether_addr(addr->sa_data))
 237                 return -EINVAL;
 238
 239         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 240                 netif_device_detach(netdev);
 241                 qlcnic_napi_disable(adapter);
 242         }
 243
 244         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 245         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 246         qlcnic_set_multi(adapter->netdev);
 247
 248         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 249                 netif_device_attach(netdev);
 250                 qlcnic_napi_enable(adapter);
 251         }
 252         return 0;
 253 }
 254
 255 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 256 {
 257         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 258                 usleep_range(10000, 11000);
 259
 260         cancel_delayed_work_sync(&adapter->fw_work);
 261 }
 262
 263 static const struct net_device_ops qlcnic_netdev_ops = {
 264         .ndo_open          = qlcnic_open,
 265         .ndo_stop          = qlcnic_close,
 266         .ndo_start_xmit    = qlcnic_xmit_frame,
 267         .ndo_get_stats     = qlcnic_get_stats,
 268         .ndo_validate_addr = eth_validate_addr,
 269         .ndo_set_rx_mode   = qlcnic_set_multi,
 270         .ndo_set_mac_address    = qlcnic_set_mac,
 271         .ndo_change_mtu    = qlcnic_change_mtu,
 272         .ndo_fix_features  = qlcnic_fix_features,
 273         .ndo_set_features  = qlcnic_set_features,
 274         .ndo_tx_timeout    = qlcnic_tx_timeout,
 275         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 276         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 277 #ifdef CONFIG_NET_POLL_CONTROLLER
 278         .ndo_poll_controller = qlcnic_poll_controller,
 279 #endif
 280 };
 281
 282 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 283         .ndo_open          = qlcnic_open,
 284 };
 285
 286 static struct qlcnic_nic_template qlcnic_ops = {
 287         .config_bridged_mode    = qlcnic_config_bridged_mode,
 288         .config_led             = qlcnic_82xx_config_led,
 289         .start_firmware         = qlcnic_82xx_start_firmware,
 290         .request_reset          = qlcnic_82xx_dev_request_reset,
 291         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 292         .napi_add               = qlcnic_82xx_napi_add,
 293         .napi_del               = qlcnic_82xx_napi_del,
 294         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 295         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 296 };
 297
 298 struct qlcnic_nic_template qlcnic_vf_ops = {
 299         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 300         .config_led             = qlcnicvf_config_led,
 301         .start_firmware         = qlcnicvf_start_firmware
 302 };
 303
 304 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 305         .read_crb                       = qlcnic_82xx_read_crb,
 306         .write_crb                      = qlcnic_82xx_write_crb,
 307         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 308         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 309         .get_mac_address                = qlcnic_82xx_get_mac_address,
 310         .setup_intr                     = qlcnic_82xx_setup_intr,
 311         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 312         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 313         .get_func_no                    = qlcnic_82xx_get_func_no,
 314         .api_lock                       = qlcnic_82xx_api_lock,
 315         .api_unlock                     = qlcnic_82xx_api_unlock,
 316         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 317         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 318         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 319         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 320         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 321         .setup_link_event               = qlcnic_82xx_linkevent_request,
 322         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 323         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 324         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 325         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 326         .napi_enable                    = qlcnic_82xx_napi_enable,
 327         .napi_disable                   = qlcnic_82xx_napi_disable,
 328         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 329         .config_rss                     = qlcnic_82xx_config_rss,
 330         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 331         .config_loopback                = qlcnic_82xx_set_lb_mode,
 332         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 333         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 334         .change_l2_filter               = qlcnic_82xx_change_filter,
 335         .get_board_info                 = qlcnic_82xx_get_board_info,
 336 };
 337
 338 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 339 {
 340         struct pci_dev *pdev = adapter->pdev;
 341         int err = -1, i;
 342         int max_tx_rings;
 343
 344         if (!adapter->msix_entries) {
 345                 adapter->msix_entries = kcalloc(num_msix,
 346                                                 sizeof(struct msix_entry),
 347                                                 GFP_KERNEL);
 348                 if (!adapter->msix_entries) {
 349                         dev_err(&pdev->dev, "failed allocating msix_entries\n");
 350                         return -ENOMEM;
 351                 }
 352         }
 353
 354         adapter->max_sds_rings = 1;
 355         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 356
 357         if (adapter->ahw->msix_supported) {
 358  enable_msix:
 359                 for (i = 0; i < num_msix; i++)
 360                         adapter->msix_entries[i].entry = i;
 361                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 362                 if (err == 0) {
 363                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 364                         if (qlcnic_83xx_check(adapter)) {
 365                                 adapter->ahw->num_msix = num_msix;
 366                                 /* subtract mail box and tx ring vectors */
 367                                 max_tx_rings = adapter->max_drv_tx_rings;
 368                                 adapter->max_sds_rings = num_msix -
 369                                                          max_tx_rings - 1;
 370                         } else {
 371                                 adapter->max_sds_rings = num_msix;
 372                         }
 373                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 374                         return err;
 375                 } else if (err > 0) {
 376                         dev_info(&pdev->dev,
 377                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 378                                  num_msix);
 379                         if (qlcnic_83xx_check(adapter)) {
 380                                 if (err < QLC_83XX_MINIMUM_VECTOR)
 381                                         return err;
 382                                 err -= (adapter->max_drv_tx_rings + 1);
 383                                 num_msix = rounddown_pow_of_two(err);
 384                                 num_msix += (adapter->max_drv_tx_rings + 1);
 385                         } else {
 386                                 num_msix = rounddown_pow_of_two(err);
 387                         }
 388
 389                         if (num_msix) {
 390                                 dev_info(&pdev->dev,
 391                                          "Trying %d MSI-X interrupt vectors\n",
 392                                          num_msix);
 393                                 goto enable_msix;
 394                         }
 395                 } else {
 396                         dev_info(&pdev->dev, "Failed to get %d vectors\n",
 397                                  num_msix);
 398                 }
 399         }
 400
 401         return err;
 402 }
 403
 404 static void qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 405 {
 406         u32 offset, mask_reg;
 407         const struct qlcnic_legacy_intr_set *legacy_intrp;
 408         struct qlcnic_hardware_context *ahw = adapter->ahw;
 409         struct pci_dev *pdev = adapter->pdev;
 410
 411         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 412                 adapter->flags |= QLCNIC_MSI_ENABLED;
 413                 offset = msi_tgt_status[adapter->ahw->pci_func];
 414                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 415                                                             offset);
 416                 dev_info(&pdev->dev, "using msi interrupts\n");
 417                 adapter->msix_entries[0].vector = pdev->irq;
 418                 return;
 419         }
 420
 421         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 422         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 423         offset = legacy_intrp->tgt_status_reg;
 424         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 425         mask_reg = legacy_intrp->tgt_mask_reg;
 426         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 427         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 428         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 429         dev_info(&pdev->dev, "using legacy interrupts\n");
 430         adapter->msix_entries[0].vector = pdev->irq;
 431 }
 432
 433 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr)
 434 {
 435         int num_msix, err;
 436
 437         if (!num_intr)
 438                 num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
 439
 440         if (adapter->ahw->msix_supported)
 441                 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 442                                                 num_intr));
 443         else
 444                 num_msix = 1;
 445
 446         err = qlcnic_enable_msix(adapter, num_msix);
 447         if (err == -ENOMEM || !err)
 448                 return err;
 449
 450         qlcnic_enable_msi_legacy(adapter);
 451         return 0;
 452 }
 453
 454 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 455 {
 456         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 457                 pci_disable_msix(adapter->pdev);
 458         if (adapter->flags & QLCNIC_MSI_ENABLED)
 459                 pci_disable_msi(adapter->pdev);
 460
 461         kfree(adapter->msix_entries);
 462         adapter->msix_entries = NULL;
 463
 464         if (adapter->ahw->intr_tbl) {
 465                 vfree(adapter->ahw->intr_tbl);
 466                 adapter->ahw->intr_tbl = NULL;
 467         }
 468 }
 469
 470 static void
 471 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
 472 {
 473         if (adapter->ahw->pci_base0 != NULL)
 474                 iounmap(adapter->ahw->pci_base0);
 475 }
 476
 477 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 478 {
 479         struct qlcnic_pci_info *pci_info;
 480         int ret;
 481
 482         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 483                 switch (adapter->ahw->port_type) {
 484                 case QLCNIC_GBE:
 485                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
 486                         break;
 487                 case QLCNIC_XGBE:
 488                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
 489                         break;
 490                 }
 491                 return 0;
 492         }
 493
 494         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
 495                 return 0;
 496
 497         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 498         if (!pci_info)
 499                 return -ENOMEM;
 500
 501         ret = qlcnic_get_pci_info(adapter, pci_info);
 502         kfree(pci_info);
 503         return ret;
 504 }
 505
 506 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 507 {
 508         struct qlcnic_pci_info *pci_info;
 509         int i, ret = 0, j = 0;
 510         u16 act_pci_func;
 511         u8 pfn;
 512
 513         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 514         if (!pci_info)
 515                 return -ENOMEM;
 516
 517         ret = qlcnic_get_pci_info(adapter, pci_info);
 518         if (ret)
 519                 goto err_pci_info;
 520
 521         act_pci_func = adapter->ahw->act_pci_func;
 522
 523         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 524                                  act_pci_func, GFP_KERNEL);
 525         if (!adapter->npars) {
 526                 ret = -ENOMEM;
 527                 goto err_pci_info;
 528         }
 529
 530         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 531                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 532         if (!adapter->eswitch) {
 533                 ret = -ENOMEM;
 534                 goto err_npars;
 535         }
 536
 537         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 538                 pfn = pci_info[i].id;
 539
 540                 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
 541                         ret = QL_STATUS_INVALID_PARAM;
 542                         goto err_eswitch;
 543                 }
 544
 545                 if (!pci_info[i].active ||
 546                     (pci_info[i].type != QLCNIC_TYPE_NIC))
 547                         continue;
 548
 549                 adapter->npars[j].pci_func = pfn;
 550                 adapter->npars[j].active = (u8)pci_info[i].active;
 551                 adapter->npars[j].type = (u8)pci_info[i].type;
 552                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
 553                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
 554                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
 555                 j++;
 556         }
 557
 558         for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++) {
 559                 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 560                 if (qlcnic_83xx_check(adapter))
 561                         qlcnic_enable_eswitch(adapter, i, 1);
 562         }
 563
 564         kfree(pci_info);
 565         return 0;
 566
 567 err_eswitch:
 568         kfree(adapter->eswitch);
 569         adapter->eswitch = NULL;
 570 err_npars:
 571         kfree(adapter->npars);
 572         adapter->npars = NULL;
 573 err_pci_info:
 574         kfree(pci_info);
 575
 576         return ret;
 577 }
 578
 579 static int
 580 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 581 {
 582         u8 id;
 583         int i, ret = 1;
 584         u32 data = QLCNIC_MGMT_FUNC;
 585         struct qlcnic_hardware_context *ahw = adapter->ahw;
 586
 587         ret = qlcnic_api_lock(adapter);
 588         if (ret)
 589                 goto err_lock;
 590
 591         if (qlcnic_config_npars) {
 592                 for (i = 0; i < ahw->act_pci_func; i++) {
 593                         id = adapter->npars[i].pci_func;
 594                         if (id == ahw->pci_func)
 595                                 continue;
 596                         data |= (qlcnic_config_npars &
 597                                         QLC_DEV_SET_DRV(0xf, id));
 598                 }
 599         } else {
 600                 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 601                 data = (data & ~QLC_DEV_SET_DRV(0xf, ahw->pci_func)) |
 602                         (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
 603                                          ahw->pci_func));
 604         }
 605         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
 606         qlcnic_api_unlock(adapter);
 607 err_lock:
 608         return ret;
 609 }
 610
 611 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
 612                             const struct pci_device_id *ent)
 613 {
 614         u32 op_mode, priv_level;
 615
 616         /* Determine FW API version */
 617         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
 618                                                            QLCNIC_FW_API);
 619
 620         /* Find PCI function number */
 621         qlcnic_get_func_no(adapter);
 622
 623         /* Determine function privilege level */
 624         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 625         if (op_mode == QLC_DEV_DRV_DEFAULT)
 626                 priv_level = QLCNIC_MGMT_FUNC;
 627         else
 628                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 629
 630         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 631                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 632                 dev_info(&adapter->pdev->dev,
 633                         "HAL Version: %d Non Privileged function\n",
 634                          adapter->ahw->fw_hal_version);
 635                 adapter->nic_ops = &qlcnic_vf_ops;
 636         } else
 637                 adapter->nic_ops = &qlcnic_ops;
 638 }
 639
 640 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
 641 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
 642 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
 643 {
 644         switch (dev_id) {
 645         case PCI_DEVICE_ID_QLOGIC_QLE824X:
 646                 *bar = QLCNIC_82XX_BAR0_LENGTH;
 647                 break;
 648         case PCI_DEVICE_ID_QLOGIC_QLE834X:
 649                 *bar = QLCNIC_83XX_BAR0_LENGTH;
 650                 break;
 651         default:
 652                 *bar = 0;
 653         }
 654 }
 655
 656 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
 657                                 struct qlcnic_hardware_context *ahw)
 658 {
 659         u32 offset;
 660         void __iomem *mem_ptr0 = NULL;
 661         unsigned long mem_len, pci_len0 = 0, bar0_len;
 662
 663         /* remap phys address */
 664         mem_len = pci_resource_len(pdev, 0);
 665
 666         qlcnic_get_bar_length(pdev->device, &bar0_len);
 667         if (mem_len >= bar0_len) {
 668
 669                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 670                 if (mem_ptr0 == NULL) {
 671                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 672                         return -EIO;
 673                 }
 674                 pci_len0 = mem_len;
 675         } else {
 676                 return -EIO;
 677         }
 678
 679         dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
 680
 681         ahw->pci_base0 = mem_ptr0;
 682         ahw->pci_len0 = pci_len0;
 683         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
 684         qlcnic_get_ioaddr(ahw, offset);
 685
 686         return 0;
 687 }
 688
 689 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
 690 {
 691         struct pci_dev *pdev = adapter->pdev;
 692         int i, found = 0;
 693
 694         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 695                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 696                         qlcnic_boards[i].device == pdev->device &&
 697                         qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
 698                         qlcnic_boards[i].sub_device == pdev->subsystem_device) {
 699                                 sprintf(name, "%pM: %s" ,
 700                                         adapter->mac_addr,
 701                                         qlcnic_boards[i].short_name);
 702                                 found = 1;
 703                                 break;
 704                 }
 705
 706         }
 707
 708         if (!found)
 709                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 710 }
 711
 712 static void
 713 qlcnic_check_options(struct qlcnic_adapter *adapter)
 714 {
 715         int err;
 716         u32 fw_major, fw_minor, fw_build, prev_fw_version;
 717         struct pci_dev *pdev = adapter->pdev;
 718         struct qlcnic_hardware_context *ahw = adapter->ahw;
 719         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
 720
 721         prev_fw_version = adapter->fw_version;
 722
 723         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 724         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
 725         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
 726
 727         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 728
 729         err = qlcnic_get_board_info(adapter);
 730         if (err) {
 731                 dev_err(&pdev->dev, "Error getting board config info.\n");
 732                 return;
 733         }
 734         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
 735                 if (fw_dump->tmpl_hdr == NULL ||
 736                                 adapter->fw_version > prev_fw_version) {
 737                         if (fw_dump->tmpl_hdr)
 738                                 vfree(fw_dump->tmpl_hdr);
 739                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
 740                                 dev_info(&pdev->dev,
 741                                         "Supports FW dump capability\n");
 742                 }
 743         }
 744
 745         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
 746                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
 747
 748         if (adapter->ahw->port_type == QLCNIC_XGBE) {
 749                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 750                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
 751                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
 752                 } else {
 753                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 754                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
 755                 }
 756
 757                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 758                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 759
 760         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
 761                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 762                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 763                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 764                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
 765         }
 766
 767         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
 768
 769         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 770
 771         adapter->max_rds_rings = MAX_RDS_RINGS;
 772 }
 773
 774 static int
 775 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 776 {
 777         int err;
 778         struct qlcnic_info nic_info;
 779
 780         memset(&nic_info, 0, sizeof(struct qlcnic_info));
 781         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
 782         if (err)
 783                 return err;
 784
 785         adapter->ahw->physical_port = (u8)nic_info.phys_port;
 786         adapter->ahw->switch_mode = nic_info.switch_mode;
 787         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
 788         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
 789         adapter->ahw->capabilities = nic_info.capabilities;
 790         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
 791         adapter->ahw->max_mtu = nic_info.max_mtu;
 792
 793         /* Disable NPAR for 83XX */
 794         if (qlcnic_83xx_check(adapter))
 795                 return err;
 796
 797         if (adapter->ahw->capabilities & BIT_6)
 798                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
 799         else
 800                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 801
 802         return err;
 803 }
 804
 805 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
 806                             struct qlcnic_esw_func_cfg *esw_cfg)
 807 {
 808         if (esw_cfg->discard_tagged)
 809                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
 810         else
 811                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
 812
 813         if (esw_cfg->vlan_id)
 814                 adapter->pvid = esw_cfg->vlan_id;
 815         else
 816                 adapter->pvid = 0;
 817 }
 818
 819 static int
 820 qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid)
 821 {
 822         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 823         set_bit(vid, adapter->vlans);
 824         return 0;
 825 }
 826
 827 static int
 828 qlcnic_vlan_rx_del(struct net_device *netdev, u16 vid)
 829 {
 830         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 831
 832         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
 833         clear_bit(vid, adapter->vlans);
 834         return 0;
 835 }
 836
 837 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
 838                                       struct qlcnic_esw_func_cfg *esw_cfg)
 839 {
 840         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
 841                                 QLCNIC_PROMISC_DISABLED);
 842
 843         if (esw_cfg->mac_anti_spoof)
 844                 adapter->flags |= QLCNIC_MACSPOOF;
 845
 846         if (!esw_cfg->mac_override)
 847                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
 848
 849         if (!esw_cfg->promisc_mode)
 850                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
 851
 852         qlcnic_set_netdev_features(adapter, esw_cfg);
 853 }
 854
 855 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
 856 {
 857         struct qlcnic_esw_func_cfg esw_cfg;
 858
 859         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
 860                 return 0;
 861
 862         esw_cfg.pci_func = adapter->ahw->pci_func;
 863         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
 864                         return -EIO;
 865         qlcnic_set_vlan_config(adapter, &esw_cfg);
 866         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
 867
 868         return 0;
 869 }
 870
 871 static void
 872 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
 873                 struct qlcnic_esw_func_cfg *esw_cfg)
 874 {
 875         struct net_device *netdev = adapter->netdev;
 876         unsigned long features, vlan_features;
 877
 878         if (qlcnic_83xx_check(adapter))
 879                 return;
 880
 881         features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
 882                     NETIF_F_IPV6_CSUM | NETIF_F_GRO);
 883         vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 884                         NETIF_F_IPV6_CSUM);
 885
 886         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
 887                 features |= (NETIF_F_TSO | NETIF_F_TSO6);
 888                 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
 889         }
 890
 891         if (netdev->features & NETIF_F_LRO)
 892                 features |= NETIF_F_LRO;
 893
 894         if (esw_cfg->offload_flags & BIT_0) {
 895                 netdev->features |= features;
 896                 adapter->rx_csum = 1;
 897                 if (!(esw_cfg->offload_flags & BIT_1)) {
 898                         netdev->features &= ~NETIF_F_TSO;
 899                         features &= ~NETIF_F_TSO;
 900                 }
 901                 if (!(esw_cfg->offload_flags & BIT_2)) {
 902                         netdev->features &= ~NETIF_F_TSO6;
 903                         features &= ~NETIF_F_TSO6;
 904                 }
 905         } else {
 906                 netdev->features &= ~features;
 907                 features &= ~features;
 908                 adapter->rx_csum = 0;
 909         }
 910
 911         netdev->vlan_features = (features & vlan_features);
 912 }
 913
 914 static int
 915 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
 916 {
 917         u32 op_mode, priv_level;
 918         int err = 0;
 919
 920         err = qlcnic_initialize_nic(adapter);
 921         if (err)
 922                 return err;
 923
 924         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
 925                 return 0;
 926
 927         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 928         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 929
 930         if (op_mode == QLC_DEV_DRV_DEFAULT)
 931                 priv_level = QLCNIC_MGMT_FUNC;
 932         else
 933                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 934
 935         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 936                 if (priv_level == QLCNIC_MGMT_FUNC) {
 937                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
 938                         err = qlcnic_init_pci_info(adapter);
 939                         if (err)
 940                                 return err;
 941                         /* Set privilege level for other functions */
 942                         qlcnic_set_function_modes(adapter);
 943                         dev_info(&adapter->pdev->dev,
 944                                 "HAL Version: %d, Management function\n",
 945                                  adapter->ahw->fw_hal_version);
 946                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
 947                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
 948                         dev_info(&adapter->pdev->dev,
 949                                 "HAL Version: %d, Privileged function\n",
 950                                  adapter->ahw->fw_hal_version);
 951                 }
 952         }
 953
 954         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
 955
 956         return err;
 957 }
 958
 959 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
 960 {
 961         struct qlcnic_esw_func_cfg esw_cfg;
 962         struct qlcnic_npar_info *npar;
 963         u8 i;
 964
 965         if (adapter->need_fw_reset)
 966                 return 0;
 967
 968         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
 969                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
 970                 esw_cfg.pci_func = adapter->npars[i].pci_func;
 971                 esw_cfg.mac_override = BIT_0;
 972                 esw_cfg.promisc_mode = BIT_0;
 973                 if (qlcnic_82xx_check(adapter)) {
 974                         esw_cfg.offload_flags = BIT_0;
 975                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
 976                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
 977                 }
 978                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
 979                         return -EIO;
 980                 npar = &adapter->npars[i];
 981                 npar->pvid = esw_cfg.vlan_id;
 982                 npar->mac_override = esw_cfg.mac_override;
 983                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
 984                 npar->discard_tagged = esw_cfg.discard_tagged;
 985                 npar->promisc_mode = esw_cfg.promisc_mode;
 986                 npar->offload_flags = esw_cfg.offload_flags;
 987         }
 988
 989         return 0;
 990 }
 991
 992
 993 static int
 994 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
 995                         struct qlcnic_npar_info *npar, int pci_func)
 996 {
 997         struct qlcnic_esw_func_cfg esw_cfg;
 998         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
 999         esw_cfg.pci_func = pci_func;
1000         esw_cfg.vlan_id = npar->pvid;
1001         esw_cfg.mac_override = npar->mac_override;
1002         esw_cfg.discard_tagged = npar->discard_tagged;
1003         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1004         esw_cfg.offload_flags = npar->offload_flags;
1005         esw_cfg.promisc_mode = npar->promisc_mode;
1006         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1007                 return -EIO;
1008
1009         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1010         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1011                 return -EIO;
1012
1013         return 0;
1014 }
1015
1016 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1017 {
1018         int i, err;
1019         struct qlcnic_npar_info *npar;
1020         struct qlcnic_info nic_info;
1021         u8 pci_func;
1022
1023         if (qlcnic_82xx_check(adapter))
1024                 if (!adapter->need_fw_reset)
1025                         return 0;
1026
1027         /* Set the NPAR config data after FW reset */
1028         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1029                 npar = &adapter->npars[i];
1030                 pci_func = npar->pci_func;
1031                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1032                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1033                 if (err)
1034                         return err;
1035                 nic_info.min_tx_bw = npar->min_bw;
1036                 nic_info.max_tx_bw = npar->max_bw;
1037                 err = qlcnic_set_nic_info(adapter, &nic_info);
1038                 if (err)
1039                         return err;
1040
1041                 if (npar->enable_pm) {
1042                         err = qlcnic_config_port_mirroring(adapter,
1043                                                            npar->dest_npar, 1,
1044                                                            pci_func);
1045                         if (err)
1046                                 return err;
1047                 }
1048                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1049                 if (err)
1050                         return err;
1051         }
1052         return 0;
1053 }
1054
1055 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1056 {
1057         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1058         u32 npar_state;
1059
1060         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1061                 return 0;
1062
1063         npar_state = QLC_SHARED_REG_RD32(adapter,
1064                                          QLCNIC_CRB_DEV_NPAR_STATE);
1065         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1066                 msleep(1000);
1067                 npar_state = QLC_SHARED_REG_RD32(adapter,
1068                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1069         }
1070         if (!npar_opt_timeo) {
1071                 dev_err(&adapter->pdev->dev,
1072                         "Waiting for NPAR state to opertional timeout\n");
1073                 return -EIO;
1074         }
1075         return 0;
1076 }
1077
1078 static int
1079 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1080 {
1081         int err;
1082
1083         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1084             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1085                 return 0;
1086
1087         err = qlcnic_set_default_offload_settings(adapter);
1088         if (err)
1089                 return err;
1090
1091         err = qlcnic_reset_npar_config(adapter);
1092         if (err)
1093                 return err;
1094
1095         qlcnic_dev_set_npar_ready(adapter);
1096
1097         if (qlcnic_83xx_check(adapter))
1098                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
1099         return err;
1100 }
1101
1102 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1103 {
1104         int err;
1105
1106         err = qlcnic_can_start_firmware(adapter);
1107         if (err < 0)
1108                 return err;
1109         else if (!err)
1110                 goto check_fw_status;
1111
1112         if (qlcnic_load_fw_file)
1113                 qlcnic_request_firmware(adapter);
1114         else {
1115                 err = qlcnic_check_flash_fw_ver(adapter);
1116                 if (err)
1117                         goto err_out;
1118
1119                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1120         }
1121
1122         err = qlcnic_need_fw_reset(adapter);
1123         if (err == 0)
1124                 goto check_fw_status;
1125
1126         err = qlcnic_pinit_from_rom(adapter);
1127         if (err)
1128                 goto err_out;
1129
1130         err = qlcnic_load_firmware(adapter);
1131         if (err)
1132                 goto err_out;
1133
1134         qlcnic_release_firmware(adapter);
1135         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1136
1137 check_fw_status:
1138         err = qlcnic_check_fw_status(adapter);
1139         if (err)
1140                 goto err_out;
1141
1142         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1143         qlcnic_idc_debug_info(adapter, 1);
1144         err = qlcnic_check_eswitch_mode(adapter);
1145         if (err) {
1146                 dev_err(&adapter->pdev->dev,
1147                         "Memory allocation failed for eswitch\n");
1148                 goto err_out;
1149         }
1150         err = qlcnic_set_mgmt_operations(adapter);
1151         if (err)
1152                 goto err_out;
1153
1154         qlcnic_check_options(adapter);
1155         adapter->need_fw_reset = 0;
1156
1157         qlcnic_release_firmware(adapter);
1158         return 0;
1159
1160 err_out:
1161         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1162         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1163
1164         qlcnic_release_firmware(adapter);
1165         return err;
1166 }
1167
1168 static int
1169 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1170 {
1171         irq_handler_t handler;
1172         struct qlcnic_host_sds_ring *sds_ring;
1173         struct qlcnic_host_tx_ring *tx_ring;
1174         int err, ring;
1175
1176         unsigned long flags = 0;
1177         struct net_device *netdev = adapter->netdev;
1178         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1179
1180         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1181                 if (qlcnic_82xx_check(adapter))
1182                         handler = qlcnic_tmp_intr;
1183                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1184                         flags |= IRQF_SHARED;
1185
1186         } else {
1187                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1188                         handler = qlcnic_msix_intr;
1189                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1190                         handler = qlcnic_msi_intr;
1191                 else {
1192                         flags |= IRQF_SHARED;
1193                         handler = qlcnic_intr;
1194                 }
1195         }
1196         adapter->irq = netdev->irq;
1197
1198         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1199                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1200                         sds_ring = &recv_ctx->sds_rings[ring];
1201                         snprintf(sds_ring->name, sizeof(int) + IFNAMSIZ,
1202                                  "%s[%d]", netdev->name, ring);
1203                         err = request_irq(sds_ring->irq, handler, flags,
1204                                           sds_ring->name, sds_ring);
1205                         if (err)
1206                                 return err;
1207                 }
1208                 if (qlcnic_83xx_check(adapter) &&
1209                     (adapter->flags & QLCNIC_MSIX_ENABLED)) {
1210                         handler = qlcnic_msix_tx_intr;
1211                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1212                              ring++) {
1213                                 tx_ring = &adapter->tx_ring[ring];
1214                                 snprintf(tx_ring->name, sizeof(int) + IFNAMSIZ,
1215                                          "%s[%d]", netdev->name,
1216                                 adapter->max_sds_rings + ring);
1217                                 err = request_irq(tx_ring->irq, handler, flags,
1218                                                   tx_ring->name, tx_ring);
1219                                 if (err)
1220                                         return err;
1221                         }
1222                 }
1223         }
1224         return 0;
1225 }
1226
1227 static void
1228 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1229 {
1230         int ring;
1231         struct qlcnic_host_sds_ring *sds_ring;
1232         struct qlcnic_host_tx_ring *tx_ring;
1233
1234         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1235
1236         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1237                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1238                         sds_ring = &recv_ctx->sds_rings[ring];
1239                         free_irq(sds_ring->irq, sds_ring);
1240                 }
1241                 if (qlcnic_83xx_check(adapter)) {
1242                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1243                              ring++) {
1244                                 tx_ring = &adapter->tx_ring[ring];
1245                                 if (tx_ring->irq)
1246                                         free_irq(tx_ring->irq, tx_ring);
1247                         }
1248                 }
1249         }
1250 }
1251
1252 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1253 {
1254         int ring;
1255         u32 capab2;
1256
1257         struct qlcnic_host_rds_ring *rds_ring;
1258
1259         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1260                 return -EIO;
1261
1262         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1263                 return 0;
1264         if (qlcnic_set_eswitch_port_config(adapter))
1265                 return -EIO;
1266
1267         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1268                 capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
1269                 if (capab2 & QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1270                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1271         }
1272
1273         if (qlcnic_fw_create_ctx(adapter))
1274                 return -EIO;
1275
1276         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1277                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1278                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1279         }
1280
1281         qlcnic_set_multi(netdev);
1282         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1283
1284         adapter->ahw->linkup = 0;
1285
1286         if (adapter->max_sds_rings > 1)
1287                 qlcnic_config_rss(adapter, 1);
1288
1289         qlcnic_config_intr_coalesce(adapter);
1290
1291         if (netdev->features & NETIF_F_LRO)
1292                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1293
1294         qlcnic_napi_enable(adapter);
1295
1296         qlcnic_linkevent_request(adapter, 1);
1297
1298         adapter->ahw->reset_context = 0;
1299         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1300         return 0;
1301 }
1302
1303 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1304 {
1305         int err = 0;
1306
1307         rtnl_lock();
1308         if (netif_running(netdev))
1309                 err = __qlcnic_up(adapter, netdev);
1310         rtnl_unlock();
1311
1312         return err;
1313 }
1314
1315 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1316 {
1317         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1318                 return;
1319
1320         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1321                 return;
1322
1323         smp_mb();
1324         spin_lock(&adapter->tx_clean_lock);
1325         netif_carrier_off(netdev);
1326         netif_tx_disable(netdev);
1327
1328         qlcnic_free_mac_list(adapter);
1329
1330         if (adapter->fhash.fnum)
1331                 qlcnic_delete_lb_filters(adapter);
1332
1333         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1334
1335         qlcnic_napi_disable(adapter);
1336
1337         qlcnic_fw_destroy_ctx(adapter);
1338         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1339
1340         qlcnic_reset_rx_buffers_list(adapter);
1341         qlcnic_release_tx_buffers(adapter);
1342         spin_unlock(&adapter->tx_clean_lock);
1343 }
1344
1345 /* Usage: During suspend and firmware recovery module */
1346
1347 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1348 {
1349         rtnl_lock();
1350         if (netif_running(netdev))
1351                 __qlcnic_down(adapter, netdev);
1352         rtnl_unlock();
1353
1354 }
1355
1356 int
1357 qlcnic_attach(struct qlcnic_adapter *adapter)
1358 {
1359         struct net_device *netdev = adapter->netdev;
1360         struct pci_dev *pdev = adapter->pdev;
1361         int err;
1362
1363         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1364                 return 0;
1365
1366         err = qlcnic_napi_add(adapter, netdev);
1367         if (err)
1368                 return err;
1369
1370         err = qlcnic_alloc_sw_resources(adapter);
1371         if (err) {
1372                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1373                 goto err_out_napi_del;
1374         }
1375
1376         err = qlcnic_alloc_hw_resources(adapter);
1377         if (err) {
1378                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1379                 goto err_out_free_sw;
1380         }
1381
1382         err = qlcnic_request_irq(adapter);
1383         if (err) {
1384                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1385                 goto err_out_free_hw;
1386         }
1387
1388         qlcnic_create_sysfs_entries(adapter);
1389
1390         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1391         return 0;
1392
1393 err_out_free_hw:
1394         qlcnic_free_hw_resources(adapter);
1395 err_out_free_sw:
1396         qlcnic_free_sw_resources(adapter);
1397 err_out_napi_del:
1398         qlcnic_napi_del(adapter);
1399         return err;
1400 }
1401
1402 void qlcnic_detach(struct qlcnic_adapter *adapter)
1403 {
1404         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1405                 return;
1406
1407         qlcnic_remove_sysfs_entries(adapter);
1408
1409         qlcnic_free_hw_resources(adapter);
1410         qlcnic_release_rx_buffers(adapter);
1411         qlcnic_free_irq(adapter);
1412         qlcnic_napi_del(adapter);
1413         qlcnic_free_sw_resources(adapter);
1414
1415         adapter->is_up = 0;
1416 }
1417
1418 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1419 {
1420         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1421         struct qlcnic_host_sds_ring *sds_ring;
1422         int ring;
1423
1424         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1425         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1426                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1427                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1428                         if (qlcnic_83xx_check(adapter))
1429                                 writel(1, sds_ring->crb_intr_mask);
1430                         else
1431                                 qlcnic_disable_int(sds_ring);
1432                 }
1433         }
1434
1435         qlcnic_fw_destroy_ctx(adapter);
1436
1437         qlcnic_detach(adapter);
1438
1439         adapter->ahw->diag_test = 0;
1440         adapter->max_sds_rings = max_sds_rings;
1441
1442         if (qlcnic_attach(adapter))
1443                 goto out;
1444
1445         if (netif_running(netdev))
1446                 __qlcnic_up(adapter, netdev);
1447 out:
1448         netif_device_attach(netdev);
1449 }
1450
1451 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1452 {
1453         int err = 0;
1454         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1455                                 GFP_KERNEL);
1456         if (!adapter->recv_ctx) {
1457                 dev_err(&adapter->pdev->dev,
1458                         "Failed to allocate recv ctx resources for adapter\n");
1459                 err = -ENOMEM;
1460                 goto err_out;
1461         }
1462         /* Initialize interrupt coalesce parameters */
1463         adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1464         adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1465         adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1466         /* clear stats */
1467         memset(&adapter->stats, 0, sizeof(adapter->stats));
1468 err_out:
1469         return err;
1470 }
1471
1472 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1473 {
1474         kfree(adapter->recv_ctx);
1475         adapter->recv_ctx = NULL;
1476
1477         if (adapter->ahw->fw_dump.tmpl_hdr) {
1478                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1479                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1480         }
1481
1482         kfree(adapter->ahw->reset.buff);
1483         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1484 }
1485
1486 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1487 {
1488         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1489         struct qlcnic_host_sds_ring *sds_ring;
1490         struct qlcnic_host_rds_ring *rds_ring;
1491         int ring;
1492         int ret;
1493
1494         netif_device_detach(netdev);
1495
1496         if (netif_running(netdev))
1497                 __qlcnic_down(adapter, netdev);
1498
1499         qlcnic_detach(adapter);
1500
1501         adapter->max_sds_rings = 1;
1502         adapter->ahw->diag_test = test;
1503         adapter->ahw->linkup = 0;
1504
1505         ret = qlcnic_attach(adapter);
1506         if (ret) {
1507                 netif_device_attach(netdev);
1508                 return ret;
1509         }
1510
1511         ret = qlcnic_fw_create_ctx(adapter);
1512         if (ret) {
1513                 qlcnic_detach(adapter);
1514                 netif_device_attach(netdev);
1515                 return ret;
1516         }
1517
1518         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1519                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1520                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1521         }
1522
1523         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1524                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1525                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1526                         if (qlcnic_82xx_check(adapter))
1527                                 qlcnic_enable_int(sds_ring);
1528                         else
1529                                 qlcnic_83xx_enable_intr(adapter, sds_ring);
1530                 }
1531         }
1532
1533         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1534                 adapter->ahw->loopback_state = 0;
1535                 qlcnic_linkevent_request(adapter, 1);
1536         }
1537
1538         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1539
1540         return 0;
1541 }
1542
1543 /* Reset context in hardware only */
1544 static int
1545 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1546 {
1547         struct net_device *netdev = adapter->netdev;
1548
1549         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1550                 return -EBUSY;
1551
1552         netif_device_detach(netdev);
1553
1554         qlcnic_down(adapter, netdev);
1555
1556         qlcnic_up(adapter, netdev);
1557
1558         netif_device_attach(netdev);
1559
1560         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1561         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1562         return 0;
1563 }
1564
1565 int
1566 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1567 {
1568         int err = 0;
1569         struct net_device *netdev = adapter->netdev;
1570
1571         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1572                 return -EBUSY;
1573
1574         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1575
1576                 netif_device_detach(netdev);
1577
1578                 if (netif_running(netdev))
1579                         __qlcnic_down(adapter, netdev);
1580
1581                 qlcnic_detach(adapter);
1582
1583                 if (netif_running(netdev)) {
1584                         err = qlcnic_attach(adapter);
1585                         if (!err) {
1586                                 __qlcnic_up(adapter, netdev);
1587                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1588                         }
1589                 }
1590
1591                 netif_device_attach(netdev);
1592         }
1593
1594         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1595         return err;
1596 }
1597
1598 static int
1599 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
1600                     int pci_using_dac)
1601 {
1602         int err;
1603         struct pci_dev *pdev = adapter->pdev;
1604
1605         adapter->rx_csum = 1;
1606         adapter->ahw->mc_enabled = 0;
1607         adapter->ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
1608
1609         netdev->netdev_ops         = &qlcnic_netdev_ops;
1610         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
1611
1612         qlcnic_change_mtu(netdev, netdev->mtu);
1613
1614         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1615
1616         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1617                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
1618                              NETIF_F_HW_VLAN_RX);
1619         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1620                                   NETIF_F_IPV6_CSUM);
1621
1622         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1623                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1624                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1625         }
1626
1627         if (pci_using_dac) {
1628                 netdev->features |= NETIF_F_HIGHDMA;
1629                 netdev->vlan_features |= NETIF_F_HIGHDMA;
1630         }
1631
1632         if (qlcnic_vlan_tx_check(adapter))
1633                 netdev->features |= (NETIF_F_HW_VLAN_TX);
1634
1635         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1636                 netdev->features |= NETIF_F_LRO;
1637
1638         netdev->hw_features = netdev->features;
1639         netdev->irq = adapter->msix_entries[0].vector;
1640
1641         err = register_netdev(netdev);
1642         if (err) {
1643                 dev_err(&pdev->dev, "failed to register net device\n");
1644                 return err;
1645         }
1646
1647         return 0;
1648 }
1649
1650 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
1651 {
1652         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1653                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1654                 *pci_using_dac = 1;
1655         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1656                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1657                 *pci_using_dac = 0;
1658         else {
1659                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1660                 return -EIO;
1661         }
1662
1663         return 0;
1664 }
1665
1666 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
1667 {
1668         int ring;
1669         struct qlcnic_host_tx_ring *tx_ring;
1670
1671         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1672                 tx_ring = &adapter->tx_ring[ring];
1673                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
1674                         vfree(tx_ring->cmd_buf_arr);
1675                         tx_ring->cmd_buf_arr = NULL;
1676                 }
1677         }
1678         if (adapter->tx_ring != NULL)
1679                 kfree(adapter->tx_ring);
1680 }
1681
1682 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
1683                           struct net_device *netdev)
1684 {
1685         int ring, size, vector, index;
1686         struct qlcnic_host_tx_ring *tx_ring;
1687         struct qlcnic_cmd_buffer *cmd_buf_arr;
1688
1689         size = adapter->max_drv_tx_rings * sizeof(struct qlcnic_host_tx_ring);
1690         tx_ring = kzalloc(size, GFP_KERNEL);
1691         if (tx_ring == NULL) {
1692                 dev_err(&netdev->dev, "failed to allocate tx rings\n");
1693                 return -ENOMEM;
1694         }
1695         adapter->tx_ring = tx_ring;
1696
1697         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1698                 tx_ring = &adapter->tx_ring[ring];
1699                 tx_ring->num_desc = adapter->num_txd;
1700                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
1701                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
1702                 if (cmd_buf_arr == NULL) {
1703                         dev_err(&netdev->dev,
1704                                 "failed to allocate cmd buffer ring\n");
1705                         qlcnic_free_tx_rings(adapter);
1706                         return -ENOMEM;
1707                 }
1708                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
1709                 tx_ring->cmd_buf_arr = cmd_buf_arr;
1710         }
1711
1712         if (qlcnic_83xx_check(adapter)) {
1713                 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1714                         tx_ring = &adapter->tx_ring[ring];
1715                         tx_ring->adapter = adapter;
1716                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1717                                 index = adapter->max_sds_rings + ring;
1718                                 vector = adapter->msix_entries[index].vector;
1719                                 tx_ring->irq = vector;
1720                         }
1721                 }
1722         }
1723         return 0;
1724 }
1725
1726 static int __devinit
1727 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1728 {
1729         struct net_device *netdev = NULL;
1730         struct qlcnic_adapter *adapter = NULL;
1731         struct qlcnic_hardware_context *ahw;
1732         int err, pci_using_dac = -1;
1733         char board_name[QLCNIC_MAX_BOARD_NAME_LEN];
1734
1735         err = pci_enable_device(pdev);
1736         if (err)
1737                 return err;
1738
1739         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1740                 err = -ENODEV;
1741                 goto err_out_disable_pdev;
1742         }
1743
1744         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1745         if (err)
1746                 goto err_out_disable_pdev;
1747
1748         err = pci_request_regions(pdev, qlcnic_driver_name);
1749         if (err)
1750                 goto err_out_disable_pdev;
1751
1752         pci_set_master(pdev);
1753         pci_enable_pcie_error_reporting(pdev);
1754
1755         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
1756         if (!ahw)
1757                 goto err_out_free_res;
1758
1759         if (ent->device == PCI_DEVICE_ID_QLOGIC_QLE824X) {
1760                 ahw->hw_ops = &qlcnic_hw_ops;
1761                 ahw->reg_tbl = (u32 *)qlcnic_reg_tbl;
1762         } else if (ent->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1763                 qlcnic_83xx_register_map(ahw);
1764         } else {
1765                 goto err_out_free_hw_res;
1766         }
1767
1768         err = qlcnic_setup_pci_map(pdev, ahw);
1769         if (err)
1770                 goto err_out_free_hw_res;
1771
1772         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1773         if (!netdev) {
1774                 err = -ENOMEM;
1775                 goto err_out_iounmap;
1776         }
1777
1778         SET_NETDEV_DEV(netdev, &pdev->dev);
1779
1780         adapter = netdev_priv(netdev);
1781         adapter->netdev  = netdev;
1782         adapter->pdev    = pdev;
1783         adapter->ahw = ahw;
1784
1785         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
1786         if (adapter->qlcnic_wq == NULL) {
1787                 dev_err(&pdev->dev, "Failed to create workqueue\n");
1788                 goto err_out_free_netdev;
1789         }
1790
1791         err = qlcnic_alloc_adapter_resources(adapter);
1792         if (err)
1793                 goto err_out_free_netdev;
1794
1795         adapter->dev_rst_time = jiffies;
1796         adapter->ahw->revision_id = pdev->revision;
1797         adapter->mac_learn = qlcnic_mac_learn;
1798         adapter->max_drv_tx_rings = 1;
1799
1800         rwlock_init(&adapter->ahw->crb_lock);
1801         mutex_init(&adapter->ahw->mem_lock);
1802
1803         spin_lock_init(&adapter->tx_clean_lock);
1804         INIT_LIST_HEAD(&adapter->mac_list);
1805
1806         if (qlcnic_82xx_check(adapter)) {
1807                 qlcnic_check_vf(adapter, ent);
1808                 adapter->portnum = adapter->ahw->pci_func;
1809                 err = qlcnic_start_firmware(adapter);
1810                 if (err) {
1811                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1812                         goto err_out_free_hw;
1813                 }
1814
1815                 err = qlcnic_setup_idc_param(adapter);
1816                 if (err)
1817                         goto err_out_free_hw;
1818
1819                 adapter->flags |= QLCNIC_NEED_FLR;
1820         } else if (qlcnic_83xx_check(adapter)) {
1821                 qlcnic_83xx_check_vf(adapter, ent);
1822                 adapter->portnum = adapter->ahw->pci_func;
1823                 err = qlcnic_83xx_init(adapter);
1824                 if (err) {
1825                         dev_err(&pdev->dev, "%s: failed\n", __func__);
1826                         goto err_out_free_hw;
1827                 }
1828         } else {
1829                 dev_err(&pdev->dev,
1830                         "%s: failed. Please Reboot\n", __func__);
1831                 goto err_out_free_hw;
1832         }
1833
1834         if (qlcnic_read_mac_addr(adapter))
1835                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1836
1837         if (adapter->portnum == 0) {
1838                 qlcnic_get_board_name(adapter, board_name);
1839
1840                 pr_info("%s: %s Board Chip rev 0x%x\n",
1841                         module_name(THIS_MODULE),
1842                         board_name, adapter->ahw->revision_id);
1843         }
1844         err = qlcnic_setup_intr(adapter, 0);
1845         if (err)
1846                 goto err_out_disable_msi;
1847
1848         if (qlcnic_83xx_check(adapter)) {
1849                 err = qlcnic_83xx_setup_mbx_intr(adapter);
1850                 if (err)
1851                         goto err_out_disable_msi;
1852         }
1853
1854         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1855         if (err)
1856                 goto err_out_disable_mbx_intr;
1857
1858         pci_set_drvdata(pdev, adapter);
1859
1860         if (qlcnic_82xx_check(adapter))
1861                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
1862                                      FW_POLL_DELAY);
1863
1864         switch (adapter->ahw->port_type) {
1865         case QLCNIC_GBE:
1866                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1867                                 adapter->netdev->name);
1868                 break;
1869         case QLCNIC_XGBE:
1870                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1871                                 adapter->netdev->name);
1872                 break;
1873         }
1874
1875         if (qlcnic_get_act_pci_func(adapter))
1876                 goto err_out_disable_mbx_intr;
1877
1878         if (adapter->mac_learn)
1879                 qlcnic_alloc_lb_filters_mem(adapter);
1880
1881         qlcnic_add_sysfs(adapter);
1882
1883         return 0;
1884
1885 err_out_disable_mbx_intr:
1886         if (qlcnic_83xx_check(adapter)) {
1887                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1888                         qlcnic_83xx_config_intrpt(adapter, 0);
1889                 qlcnic_83xx_free_mbx_intr(adapter);
1890         }
1891
1892 err_out_disable_msi:
1893         qlcnic_teardown_intr(adapter);
1894         qlcnic_cancel_idc_work(adapter);
1895         qlcnic_clr_all_drv_state(adapter, 0);
1896
1897 err_out_free_hw:
1898         qlcnic_free_adapter_resources(adapter);
1899
1900 err_out_free_netdev:
1901         free_netdev(netdev);
1902
1903 err_out_iounmap:
1904         qlcnic_cleanup_pci_map(adapter);
1905
1906 err_out_free_hw_res:
1907         kfree(ahw);
1908
1909 err_out_free_res:
1910         pci_release_regions(pdev);
1911
1912 err_out_disable_pdev:
1913         pci_set_drvdata(pdev, NULL);
1914         pci_disable_device(pdev);
1915         return err;
1916 }
1917
1918 static void __devexit qlcnic_remove(struct pci_dev *pdev)
1919 {
1920         struct qlcnic_adapter *adapter;
1921         struct net_device *netdev;
1922         struct qlcnic_hardware_context *ahw;
1923
1924         adapter = pci_get_drvdata(pdev);
1925         if (adapter == NULL)
1926                 return;
1927
1928         netdev = adapter->netdev;
1929
1930         qlcnic_cancel_idc_work(adapter);
1931         ahw = adapter->ahw;
1932
1933         unregister_netdev(netdev);
1934
1935         if (qlcnic_83xx_check(adapter)) {
1936                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1937                         qlcnic_83xx_config_intrpt(adapter, 0);
1938                 qlcnic_83xx_free_mbx_intr(adapter);
1939         }
1940
1941         qlcnic_detach(adapter);
1942
1943         if (adapter->npars != NULL)
1944                 kfree(adapter->npars);
1945         if (adapter->eswitch != NULL)
1946                 kfree(adapter->eswitch);
1947
1948         if (qlcnic_82xx_check(adapter))
1949                 qlcnic_clr_all_drv_state(adapter, 0);
1950
1951         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1952
1953         qlcnic_free_lb_filters_mem(adapter);
1954
1955         qlcnic_teardown_intr(adapter);
1956
1957         qlcnic_remove_sysfs(adapter);
1958
1959         qlcnic_cleanup_pci_map(adapter);
1960
1961         qlcnic_release_firmware(adapter);
1962
1963         pci_disable_pcie_error_reporting(pdev);
1964         pci_release_regions(pdev);
1965         pci_disable_device(pdev);
1966         pci_set_drvdata(pdev, NULL);
1967
1968         if (adapter->qlcnic_wq) {
1969                 destroy_workqueue(adapter->qlcnic_wq);
1970                 adapter->qlcnic_wq = NULL;
1971         }
1972         qlcnic_free_adapter_resources(adapter);
1973         kfree(ahw);
1974         free_netdev(netdev);
1975 }
1976 static int __qlcnic_shutdown(struct pci_dev *pdev)
1977 {
1978         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1979         struct net_device *netdev = adapter->netdev;
1980         int retval;
1981
1982         netif_device_detach(netdev);
1983
1984         qlcnic_cancel_idc_work(adapter);
1985
1986         if (netif_running(netdev))
1987                 qlcnic_down(adapter, netdev);
1988
1989         if (qlcnic_82xx_check(adapter))
1990                 qlcnic_clr_all_drv_state(adapter, 0);
1991
1992         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1993
1994         retval = pci_save_state(pdev);
1995         if (retval)
1996                 return retval;
1997         if (qlcnic_82xx_check(adapter)) {
1998                 if (qlcnic_wol_supported(adapter)) {
1999                         pci_enable_wake(pdev, PCI_D3cold, 1);
2000                         pci_enable_wake(pdev, PCI_D3hot, 1);
2001                 }
2002         }
2003
2004         return 0;
2005 }
2006
2007 static void qlcnic_shutdown(struct pci_dev *pdev)
2008 {
2009         if (__qlcnic_shutdown(pdev))
2010                 return;
2011
2012         pci_disable_device(pdev);
2013 }
2014
2015 #ifdef CONFIG_PM
2016 static int
2017 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2018 {
2019         int retval;
2020
2021         retval = __qlcnic_shutdown(pdev);
2022         if (retval)
2023                 return retval;
2024
2025         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2026         return 0;
2027 }
2028
2029 static int
2030 qlcnic_resume(struct pci_dev *pdev)
2031 {
2032         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2033         struct net_device *netdev = adapter->netdev;
2034         int err;
2035
2036         err = pci_enable_device(pdev);
2037         if (err)
2038                 return err;
2039
2040         pci_set_power_state(pdev, PCI_D0);
2041         pci_set_master(pdev);
2042         pci_restore_state(pdev);
2043
2044         err = qlcnic_start_firmware(adapter);
2045         if (err) {
2046                 dev_err(&pdev->dev, "failed to start firmware\n");
2047                 return err;
2048         }
2049
2050         if (netif_running(netdev)) {
2051                 err = qlcnic_up(adapter, netdev);
2052                 if (err)
2053                         goto done;
2054
2055                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2056         }
2057 done:
2058         netif_device_attach(netdev);
2059         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2060         return 0;
2061 }
2062 #endif
2063
2064 static int qlcnic_open(struct net_device *netdev)
2065 {
2066         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2067         int err;
2068
2069         netif_carrier_off(netdev);
2070
2071         err = qlcnic_attach(adapter);
2072         if (err)
2073                 return err;
2074
2075         err = __qlcnic_up(adapter, netdev);
2076         if (err)
2077                 goto err_out;
2078
2079         netif_start_queue(netdev);
2080
2081         return 0;
2082
2083 err_out:
2084         qlcnic_detach(adapter);
2085         return err;
2086 }
2087
2088 /*
2089  * qlcnic_close - Disables a network interface entry point
2090  */
2091 static int qlcnic_close(struct net_device *netdev)
2092 {
2093         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2094
2095         __qlcnic_down(adapter, netdev);
2096         if (qlcnic_83xx_check(adapter)) {
2097                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2098                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2099         }
2100
2101         return 0;
2102 }
2103
2104 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2105 {
2106         void *head;
2107         int i;
2108         struct net_device *netdev = adapter->netdev;
2109         u32 filter_size = 0;
2110         u16 act_pci_func = 0;
2111
2112         if (adapter->fhash.fmax && adapter->fhash.fhead)
2113                 return;
2114
2115         act_pci_func = adapter->ahw->act_pci_func;
2116         spin_lock_init(&adapter->mac_learn_lock);
2117
2118         if (qlcnic_82xx_check(adapter)) {
2119                 filter_size = QLCNIC_LB_MAX_FILTERS;
2120                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2121         } else {
2122                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2123                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2124         }
2125
2126         head = kcalloc(adapter->fhash.fbucket_size,
2127                        sizeof(struct hlist_head), GFP_KERNEL);
2128
2129         if (!head)
2130                 return;
2131
2132         adapter->fhash.fmax = (filter_size / act_pci_func);
2133         adapter->fhash.fhead = head;
2134
2135         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2136                     act_pci_func, adapter->fhash.fmax);
2137
2138         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2139                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2140 }
2141
2142 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2143 {
2144         if (adapter->fhash.fmax && adapter->fhash.fhead)
2145                 kfree(adapter->fhash.fhead);
2146
2147         adapter->fhash.fhead = NULL;
2148         adapter->fhash.fmax = 0;
2149 }
2150
2151 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2152 {
2153         struct net_device *netdev = adapter->netdev;
2154         u32 temp_state, temp_val, temp = 0;
2155         int rv = 0;
2156
2157         if (qlcnic_83xx_check(adapter))
2158                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2159
2160         if (qlcnic_82xx_check(adapter))
2161                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2162
2163         temp_state = qlcnic_get_temp_state(temp);
2164         temp_val = qlcnic_get_temp_val(temp);
2165
2166         if (temp_state == QLCNIC_TEMP_PANIC) {
2167                 dev_err(&netdev->dev,
2168                        "Device temperature %d degrees C exceeds"
2169                        " maximum allowed. Hardware has been shut down.\n",
2170                        temp_val);
2171                 rv = 1;
2172         } else if (temp_state == QLCNIC_TEMP_WARN) {
2173                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2174                         dev_err(&netdev->dev,
2175                                "Device temperature %d degrees C "
2176                                "exceeds operating range."
2177                                " Immediate action needed.\n",
2178                                temp_val);
2179                 }
2180         } else {
2181                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2182                         dev_info(&netdev->dev,
2183                                "Device temperature is now %d degrees C"
2184                                " in normal range.\n", temp_val);
2185                 }
2186         }
2187         adapter->ahw->temp = temp_state;
2188         return rv;
2189 }
2190
2191 static void qlcnic_tx_timeout(struct net_device *netdev)
2192 {
2193         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2194
2195         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2196                 return;
2197
2198         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2199
2200         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2201                 adapter->need_fw_reset = 1;
2202         else
2203                 adapter->ahw->reset_context = 1;
2204 }
2205
2206 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2207 {
2208         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2209         struct net_device_stats *stats = &netdev->stats;
2210
2211         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2212         stats->tx_packets = adapter->stats.xmitfinished;
2213         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2214         stats->tx_bytes = adapter->stats.txbytes;
2215         stats->rx_dropped = adapter->stats.rxdropped;
2216         stats->tx_dropped = adapter->stats.txdropped;
2217
2218         return stats;
2219 }
2220
2221 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2222 {
2223         u32 status;
2224
2225         status = readl(adapter->isr_int_vec);
2226
2227         if (!(status & adapter->ahw->int_vec_bit))
2228                 return IRQ_NONE;
2229
2230         /* check interrupt state machine, to be sure */
2231         status = readl(adapter->crb_int_state_reg);
2232         if (!ISR_LEGACY_INT_TRIGGERED(status))
2233                 return IRQ_NONE;
2234
2235         writel(0xffffffff, adapter->tgt_status_reg);
2236         /* read twice to ensure write is flushed */
2237         readl(adapter->isr_int_vec);
2238         readl(adapter->isr_int_vec);
2239
2240         return IRQ_HANDLED;
2241 }
2242
2243 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2244 {
2245         struct qlcnic_host_sds_ring *sds_ring = data;
2246         struct qlcnic_adapter *adapter = sds_ring->adapter;
2247
2248         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2249                 goto done;
2250         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2251                 writel(0xffffffff, adapter->tgt_status_reg);
2252                 goto done;
2253         }
2254
2255         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2256                 return IRQ_NONE;
2257
2258 done:
2259         adapter->ahw->diag_cnt++;
2260         qlcnic_enable_int(sds_ring);
2261         return IRQ_HANDLED;
2262 }
2263
2264 static irqreturn_t qlcnic_intr(int irq, void *data)
2265 {
2266         struct qlcnic_host_sds_ring *sds_ring = data;
2267         struct qlcnic_adapter *adapter = sds_ring->adapter;
2268
2269         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2270                 return IRQ_NONE;
2271
2272         napi_schedule(&sds_ring->napi);
2273
2274         return IRQ_HANDLED;
2275 }
2276
2277 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2278 {
2279         struct qlcnic_host_sds_ring *sds_ring = data;
2280         struct qlcnic_adapter *adapter = sds_ring->adapter;
2281
2282         /* clear interrupt */
2283         writel(0xffffffff, adapter->tgt_status_reg);
2284
2285         napi_schedule(&sds_ring->napi);
2286         return IRQ_HANDLED;
2287 }
2288
2289 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2290 {
2291         struct qlcnic_host_sds_ring *sds_ring = data;
2292
2293         napi_schedule(&sds_ring->napi);
2294         return IRQ_HANDLED;
2295 }
2296
2297 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2298 {
2299         struct qlcnic_host_tx_ring *tx_ring = data;
2300
2301         napi_schedule(&tx_ring->napi);
2302         return IRQ_HANDLED;
2303 }
2304
2305 #ifdef CONFIG_NET_POLL_CONTROLLER
2306 static void qlcnic_poll_controller(struct net_device *netdev)
2307 {
2308         int ring;
2309         struct qlcnic_host_sds_ring *sds_ring;
2310         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2311         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2312
2313         disable_irq(adapter->irq);
2314         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2315                 sds_ring = &recv_ctx->sds_rings[ring];
2316                 qlcnic_intr(adapter->irq, sds_ring);
2317         }
2318         enable_irq(adapter->irq);
2319 }
2320 #endif
2321
2322 static void
2323 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2324 {
2325         u32 val;
2326
2327         val = adapter->portnum & 0xf;
2328         val |= encoding << 7;
2329         val |= (jiffies - adapter->dev_rst_time) << 8;
2330
2331         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2332         adapter->dev_rst_time = jiffies;
2333 }
2334
2335 static int
2336 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2337 {
2338         u32  val;
2339
2340         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2341                         state != QLCNIC_DEV_NEED_QUISCENT);
2342
2343         if (qlcnic_api_lock(adapter))
2344                 return -EIO;
2345
2346         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2347
2348         if (state == QLCNIC_DEV_NEED_RESET)
2349                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2350         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2351                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2352
2353         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2354
2355         qlcnic_api_unlock(adapter);
2356
2357         return 0;
2358 }
2359
2360 static int
2361 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2362 {
2363         u32  val;
2364
2365         if (qlcnic_api_lock(adapter))
2366                 return -EBUSY;
2367
2368         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2369         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2370         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2371
2372         qlcnic_api_unlock(adapter);
2373
2374         return 0;
2375 }
2376
2377 static void
2378 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2379 {
2380         u32  val;
2381
2382         if (qlcnic_api_lock(adapter))
2383                 goto err;
2384
2385         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2386         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2387         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2388
2389         if (failed) {
2390                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2391                                     QLCNIC_DEV_FAILED);
2392                 dev_info(&adapter->pdev->dev,
2393                                 "Device state set to Failed. Please Reboot\n");
2394         } else if (!(val & 0x11111111))
2395                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2396                                     QLCNIC_DEV_COLD);
2397
2398         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2399         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2400         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2401
2402         qlcnic_api_unlock(adapter);
2403 err:
2404         adapter->fw_fail_cnt = 0;
2405         adapter->flags &= ~QLCNIC_FW_HANG;
2406         clear_bit(__QLCNIC_START_FW, &adapter->state);
2407         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2408 }
2409
2410 /* Grab api lock, before checking state */
2411 static int
2412 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2413 {
2414         int act, state, active_mask;
2415         struct qlcnic_hardware_context *ahw = adapter->ahw;
2416
2417         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2418         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2419
2420         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2421                 active_mask = (~(1 << (ahw->pci_func * 4)));
2422                 act = act & active_mask;
2423         }
2424
2425         if (((state & 0x11111111) == (act & 0x11111111)) ||
2426                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2427                 return 0;
2428         else
2429                 return 1;
2430 }
2431
2432 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2433 {
2434         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2435
2436         if (val != QLCNIC_DRV_IDC_VER) {
2437                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2438                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2439         }
2440
2441         return 0;
2442 }
2443
2444 static int
2445 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2446 {
2447         u32 val, prev_state;
2448         u8 dev_init_timeo = adapter->dev_init_timeo;
2449         u8 portnum = adapter->portnum;
2450         u8 ret;
2451
2452         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2453                 return 1;
2454
2455         if (qlcnic_api_lock(adapter))
2456                 return -1;
2457
2458         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2459         if (!(val & (1 << (portnum * 4)))) {
2460                 QLC_DEV_SET_REF_CNT(val, portnum);
2461                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2462         }
2463
2464         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2465         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2466
2467         switch (prev_state) {
2468         case QLCNIC_DEV_COLD:
2469                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2470                                     QLCNIC_DEV_INITIALIZING);
2471                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2472                                     QLCNIC_DRV_IDC_VER);
2473                 qlcnic_idc_debug_info(adapter, 0);
2474                 qlcnic_api_unlock(adapter);
2475                 return 1;
2476
2477         case QLCNIC_DEV_READY:
2478                 ret = qlcnic_check_idc_ver(adapter);
2479                 qlcnic_api_unlock(adapter);
2480                 return ret;
2481
2482         case QLCNIC_DEV_NEED_RESET:
2483                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2484                 QLC_DEV_SET_RST_RDY(val, portnum);
2485                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2486                 break;
2487
2488         case QLCNIC_DEV_NEED_QUISCENT:
2489                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2490                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2491                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2492                 break;
2493
2494         case QLCNIC_DEV_FAILED:
2495                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2496                 qlcnic_api_unlock(adapter);
2497                 return -1;
2498
2499         case QLCNIC_DEV_INITIALIZING:
2500         case QLCNIC_DEV_QUISCENT:
2501                 break;
2502         }
2503
2504         qlcnic_api_unlock(adapter);
2505
2506         do {
2507                 msleep(1000);
2508                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2509
2510                 if (prev_state == QLCNIC_DEV_QUISCENT)
2511                         continue;
2512         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2513
2514         if (!dev_init_timeo) {
2515                 dev_err(&adapter->pdev->dev,
2516                         "Waiting for device to initialize timeout\n");
2517                 return -1;
2518         }
2519
2520         if (qlcnic_api_lock(adapter))
2521                 return -1;
2522
2523         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2524         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2525         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2526
2527         ret = qlcnic_check_idc_ver(adapter);
2528         qlcnic_api_unlock(adapter);
2529
2530         return ret;
2531 }
2532
2533 static void
2534 qlcnic_fwinit_work(struct work_struct *work)
2535 {
2536         struct qlcnic_adapter *adapter = container_of(work,
2537                         struct qlcnic_adapter, fw_work.work);
2538         u32 dev_state = 0xf;
2539         u32 val;
2540
2541         if (qlcnic_api_lock(adapter))
2542                 goto err_ret;
2543
2544         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2545         if (dev_state == QLCNIC_DEV_QUISCENT ||
2546             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2547                 qlcnic_api_unlock(adapter);
2548                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2549                                                 FW_POLL_DELAY * 2);
2550                 return;
2551         }
2552
2553         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2554                 qlcnic_api_unlock(adapter);
2555                 goto wait_npar;
2556         }
2557
2558         if (dev_state == QLCNIC_DEV_INITIALIZING ||
2559             dev_state == QLCNIC_DEV_READY) {
2560                 dev_info(&adapter->pdev->dev, "Detected state change from "
2561                                 "DEV_NEED_RESET, skipping ack check\n");
2562                 goto skip_ack_check;
2563         }
2564
2565         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2566                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2567                                         adapter->reset_ack_timeo);
2568                 goto skip_ack_check;
2569         }
2570
2571         if (!qlcnic_check_drv_state(adapter)) {
2572 skip_ack_check:
2573                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2574
2575                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2576                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2577                                             QLCNIC_DEV_INITIALIZING);
2578                         set_bit(__QLCNIC_START_FW, &adapter->state);
2579                         QLCDB(adapter, DRV, "Restarting fw\n");
2580                         qlcnic_idc_debug_info(adapter, 0);
2581                         val = QLC_SHARED_REG_RD32(adapter,
2582                                                   QLCNIC_CRB_DRV_STATE);
2583                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2584                         QLC_SHARED_REG_WR32(adapter,
2585                                             QLCNIC_CRB_DRV_STATE, val);
2586                 }
2587
2588                 qlcnic_api_unlock(adapter);
2589
2590                 rtnl_lock();
2591                 if (adapter->ahw->fw_dump.enable &&
2592                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2593                         QLCDB(adapter, DRV, "Take FW dump\n");
2594                         qlcnic_dump_fw(adapter);
2595                         adapter->flags |= QLCNIC_FW_HANG;
2596                 }
2597                 rtnl_unlock();
2598
2599                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2600                 if (!adapter->nic_ops->start_firmware(adapter)) {
2601                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2602                         adapter->fw_wait_cnt = 0;
2603                         return;
2604                 }
2605                 goto err_ret;
2606         }
2607
2608         qlcnic_api_unlock(adapter);
2609
2610 wait_npar:
2611         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2612         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2613
2614         switch (dev_state) {
2615         case QLCNIC_DEV_READY:
2616                 if (!qlcnic_start_firmware(adapter)) {
2617                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2618                         adapter->fw_wait_cnt = 0;
2619                         return;
2620                 }
2621         case QLCNIC_DEV_FAILED:
2622                 break;
2623         default:
2624                 qlcnic_schedule_work(adapter,
2625                         qlcnic_fwinit_work, FW_POLL_DELAY);
2626                 return;
2627         }
2628
2629 err_ret:
2630         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2631                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2632         netif_device_attach(adapter->netdev);
2633         qlcnic_clr_all_drv_state(adapter, 0);
2634 }
2635
2636 static void
2637 qlcnic_detach_work(struct work_struct *work)
2638 {
2639         struct qlcnic_adapter *adapter = container_of(work,
2640                         struct qlcnic_adapter, fw_work.work);
2641         struct net_device *netdev = adapter->netdev;
2642         u32 status;
2643
2644         netif_device_detach(netdev);
2645
2646         /* Dont grab rtnl lock during Quiscent mode */
2647         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2648                 if (netif_running(netdev))
2649                         __qlcnic_down(adapter, netdev);
2650         } else
2651                 qlcnic_down(adapter, netdev);
2652
2653         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2654
2655         if (status & QLCNIC_RCODE_FATAL_ERROR) {
2656                 dev_err(&adapter->pdev->dev,
2657                         "Detaching the device: peg halt status1=0x%x\n",
2658                                         status);
2659
2660                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2661                         dev_err(&adapter->pdev->dev,
2662                         "On board active cooling fan failed. "
2663                                 "Device has been halted.\n");
2664                         dev_err(&adapter->pdev->dev,
2665                                 "Replace the adapter.\n");
2666                 }
2667
2668                 goto err_ret;
2669         }
2670
2671         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2672                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2673                         adapter->ahw->temp);
2674                 goto err_ret;
2675         }
2676
2677         /* Dont ack if this instance is the reset owner */
2678         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2679                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2680                         dev_err(&adapter->pdev->dev,
2681                                 "Failed to set driver state,"
2682                                         "detaching the device.\n");
2683                         goto err_ret;
2684                 }
2685         }
2686
2687         adapter->fw_wait_cnt = 0;
2688
2689         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2690
2691         return;
2692
2693 err_ret:
2694         netif_device_attach(netdev);
2695         qlcnic_clr_all_drv_state(adapter, 1);
2696 }
2697
2698 /*Transit NPAR state to NON Operational */
2699 static void
2700 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2701 {
2702         u32 state;
2703
2704         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2705         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2706                 return;
2707
2708         if (qlcnic_api_lock(adapter))
2709                 return;
2710         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2711                             QLCNIC_DEV_NPAR_NON_OPER);
2712         qlcnic_api_unlock(adapter);
2713 }
2714
2715 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
2716 {
2717         u32 state, xg_val = 0, gb_val = 0;
2718
2719         qlcnic_xg_set_xg0_mask(xg_val);
2720         qlcnic_xg_set_xg1_mask(xg_val);
2721         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
2722         qlcnic_gb_set_gb0_mask(gb_val);
2723         qlcnic_gb_set_gb1_mask(gb_val);
2724         qlcnic_gb_set_gb2_mask(gb_val);
2725         qlcnic_gb_set_gb3_mask(gb_val);
2726         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
2727         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
2728                                 " on all ports\n");
2729         adapter->need_fw_reset = 1;
2730
2731         if (qlcnic_api_lock(adapter))
2732                 return;
2733
2734         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2735
2736         if (state == QLCNIC_DEV_READY) {
2737                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2738                                     QLCNIC_DEV_NEED_RESET);
2739                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
2740                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2741                 qlcnic_idc_debug_info(adapter, 0);
2742         }
2743
2744         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2745                             QLCNIC_DEV_NPAR_NON_OPER);
2746         qlcnic_api_unlock(adapter);
2747 }
2748
2749 /* Transit to NPAR READY state from NPAR NOT READY state */
2750 static void
2751 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2752 {
2753         if (qlcnic_api_lock(adapter))
2754                 return;
2755
2756         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2757                             QLCNIC_DEV_NPAR_OPER);
2758         QLCDB(adapter, DRV, "NPAR operational state set\n");
2759
2760         qlcnic_api_unlock(adapter);
2761 }
2762
2763 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2764                           work_func_t func, int delay)
2765 {
2766         if (test_bit(__QLCNIC_AER, &adapter->state))
2767                 return;
2768
2769         INIT_DELAYED_WORK(&adapter->fw_work, func);
2770         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
2771                            round_jiffies_relative(delay));
2772 }
2773
2774 static void
2775 qlcnic_attach_work(struct work_struct *work)
2776 {
2777         struct qlcnic_adapter *adapter = container_of(work,
2778                                 struct qlcnic_adapter, fw_work.work);
2779         struct net_device *netdev = adapter->netdev;
2780         u32 npar_state;
2781
2782         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
2783                 npar_state = QLC_SHARED_REG_RD32(adapter,
2784                                                  QLCNIC_CRB_DEV_NPAR_STATE);
2785                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2786                         qlcnic_clr_all_drv_state(adapter, 0);
2787                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2788                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
2789                                                         FW_POLL_DELAY);
2790                 else
2791                         goto attach;
2792                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2793                 return;
2794         }
2795 attach:
2796         if (netif_running(netdev)) {
2797                 if (qlcnic_up(adapter, netdev))
2798                         goto done;
2799
2800                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2801         }
2802
2803 done:
2804         netif_device_attach(netdev);
2805         adapter->fw_fail_cnt = 0;
2806         adapter->flags &= ~QLCNIC_FW_HANG;
2807         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2808
2809         if (!qlcnic_clr_drv_state(adapter))
2810                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2811                                                         FW_POLL_DELAY);
2812 }
2813
2814 static int
2815 qlcnic_check_health(struct qlcnic_adapter *adapter)
2816 {
2817         u32 state = 0, heartbeat;
2818         u32 peg_status;
2819
2820         if (qlcnic_check_temp(adapter))
2821                 goto detach;
2822
2823         if (adapter->need_fw_reset)
2824                 qlcnic_dev_request_reset(adapter, 0);
2825
2826         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2827         if (state == QLCNIC_DEV_NEED_RESET) {
2828                 qlcnic_set_npar_non_operational(adapter);
2829                 adapter->need_fw_reset = 1;
2830         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
2831                 goto detach;
2832
2833         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2834         if (heartbeat != adapter->heartbeat) {
2835                 adapter->heartbeat = heartbeat;
2836                 adapter->fw_fail_cnt = 0;
2837                 if (adapter->need_fw_reset)
2838                         goto detach;
2839
2840                 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset) {
2841                         qlcnic_reset_hw_context(adapter);
2842                         adapter->netdev->trans_start = jiffies;
2843                 }
2844
2845                 return 0;
2846         }
2847
2848         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2849                 return 0;
2850
2851         adapter->flags |= QLCNIC_FW_HANG;
2852
2853         qlcnic_dev_request_reset(adapter, 0);
2854
2855         if (qlcnic_auto_fw_reset)
2856                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2857
2858         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
2859         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2860         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2861                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2862                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2863                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2864                         "PEG_NET_4_PC: 0x%x\n",
2865                         peg_status,
2866                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
2867                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
2868                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
2869                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
2870                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
2871                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
2872         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
2873                 dev_err(&adapter->pdev->dev,
2874                         "Firmware aborted with error code 0x00006700. "
2875                                 "Device is being reset.\n");
2876 detach:
2877         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2878                 QLCNIC_DEV_NEED_RESET;
2879
2880         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
2881                                                       &adapter->state)) {
2882
2883                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
2884                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
2885         }
2886
2887         return 1;
2888 }
2889
2890 static void
2891 qlcnic_fw_poll_work(struct work_struct *work)
2892 {
2893         struct qlcnic_adapter *adapter = container_of(work,
2894                                 struct qlcnic_adapter, fw_work.work);
2895
2896         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2897                 goto reschedule;
2898
2899
2900         if (qlcnic_check_health(adapter))
2901                 return;
2902
2903         if (adapter->fhash.fnum)
2904                 qlcnic_prune_lb_filters(adapter);
2905
2906 reschedule:
2907         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2908 }
2909
2910 struct pci_dev *pci_get_domain_bus_and_slot(int domain, unsigned int bus,
2911                                             unsigned int devfn)
2912 {
2913         struct pci_dev *dev = NULL;
2914
2915         while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
2916                 if (pci_domain_nr(dev->bus) == domain &&
2917                     (dev->bus->number == bus && dev->devfn == devfn))
2918                         return dev;
2919         }
2920         return NULL;
2921 }
2922
2923 static int qlcnic_is_first_func(struct pci_dev *pdev)
2924 {
2925         struct pci_dev *oth_pdev;
2926         int val = pdev->devfn;
2927
2928         while (val-- > 0) {
2929                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
2930                         (pdev->bus), pdev->bus->number,
2931                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
2932                 if (!oth_pdev)
2933                         continue;
2934
2935                 if (oth_pdev->current_state != PCI_D3cold) {
2936                         pci_dev_put(oth_pdev);
2937                         return 0;
2938                 }
2939                 pci_dev_put(oth_pdev);
2940         }
2941         return 1;
2942 }
2943
2944 static int qlcnic_attach_func(struct pci_dev *pdev)
2945 {
2946         int err, first_func;
2947         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2948         struct net_device *netdev = adapter->netdev;
2949
2950         pdev->error_state = pci_channel_io_normal;
2951
2952         err = pci_enable_device(pdev);
2953         if (err)
2954                 return err;
2955
2956         pci_set_power_state(pdev, PCI_D0);
2957         pci_set_master(pdev);
2958         pci_restore_state(pdev);
2959
2960         first_func = qlcnic_is_first_func(pdev);
2961
2962         if (qlcnic_api_lock(adapter))
2963                 return -EINVAL;
2964
2965         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
2966                 adapter->need_fw_reset = 1;
2967                 set_bit(__QLCNIC_START_FW, &adapter->state);
2968                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2969                                     QLCNIC_DEV_INITIALIZING);
2970                 QLCDB(adapter, DRV, "Restarting fw\n");
2971         }
2972         qlcnic_api_unlock(adapter);
2973
2974         err = qlcnic_start_firmware(adapter);
2975         if (err)
2976                 return err;
2977
2978         qlcnic_clr_drv_state(adapter);
2979         kfree(adapter->msix_entries);
2980         adapter->msix_entries = NULL;
2981         err = qlcnic_setup_intr(adapter, 0);
2982
2983         if (qlcnic_83xx_check(adapter)) {
2984                 err = qlcnic_83xx_setup_mbx_intr(adapter);
2985                 if (err) {
2986                         dev_err(&adapter->pdev->dev,
2987                                 "failed to setup mbx interrupt\n");
2988                         qlcnic_clr_all_drv_state(adapter, 1);
2989                         clear_bit(__QLCNIC_AER, &adapter->state);
2990                         goto done;
2991                 }
2992         }
2993
2994         if (netif_running(netdev)) {
2995                 err = qlcnic_attach(adapter);
2996                 if (err) {
2997                         qlcnic_clr_all_drv_state(adapter, 1);
2998                         clear_bit(__QLCNIC_AER, &adapter->state);
2999                         netif_device_attach(netdev);
3000                         return err;
3001                 }
3002
3003                 err = qlcnic_up(adapter, netdev);
3004                 if (err)
3005                         goto done;
3006
3007                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3008         }
3009  done:
3010         netif_device_attach(netdev);
3011         return err;
3012 }
3013
3014 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3015                                                 pci_channel_state_t state)
3016 {
3017         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3018         struct net_device *netdev = adapter->netdev;
3019
3020         if (state == pci_channel_io_perm_failure)
3021                 return PCI_ERS_RESULT_DISCONNECT;
3022
3023         if (state == pci_channel_io_normal)
3024                 return PCI_ERS_RESULT_RECOVERED;
3025
3026         set_bit(__QLCNIC_AER, &adapter->state);
3027         netif_device_detach(netdev);
3028
3029         cancel_delayed_work_sync(&adapter->fw_work);
3030
3031         if (netif_running(netdev))
3032                 qlcnic_down(adapter, netdev);
3033
3034         if (qlcnic_83xx_check(adapter)) {
3035                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
3036                         qlcnic_83xx_config_intrpt(adapter, 0);
3037                 qlcnic_83xx_free_mbx_intr(adapter);
3038         }
3039
3040         qlcnic_detach(adapter);
3041         qlcnic_teardown_intr(adapter);
3042
3043         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3044
3045         pci_save_state(pdev);
3046         pci_disable_device(pdev);
3047
3048         return PCI_ERS_RESULT_NEED_RESET;
3049 }
3050
3051 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3052 {
3053         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3054                                 PCI_ERS_RESULT_RECOVERED;
3055 }
3056
3057 static void qlcnic_io_resume(struct pci_dev *pdev)
3058 {
3059         u32 state;
3060         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3061
3062         pci_cleanup_aer_uncorrect_error_status(pdev);
3063         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3064         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3065                                                             &adapter->state))
3066                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3067                                                 FW_POLL_DELAY);
3068 }
3069
3070 static int
3071 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3072 {
3073         int err;
3074
3075         err = qlcnic_can_start_firmware(adapter);
3076         if (err)
3077                 return err;
3078
3079         err = qlcnic_check_npar_opertional(adapter);
3080         if (err)
3081                 return err;
3082
3083         err = qlcnic_initialize_nic(adapter);
3084         if (err)
3085                 return err;
3086
3087         qlcnic_check_options(adapter);
3088
3089         err = qlcnic_set_eswitch_port_config(adapter);
3090         if (err)
3091                 return err;
3092
3093         adapter->need_fw_reset = 0;
3094
3095         return err;
3096 }
3097
3098 int qlcnic_validate_max_rss(u8 max_hw, u8 val)
3099 {
3100         u32 max_allowed;
3101
3102         if (max_hw > QLC_MAX_SDS_RINGS) {
3103                 max_hw = QLC_MAX_SDS_RINGS;
3104                 pr_info("max rss reset to %d\n", QLC_MAX_SDS_RINGS);
3105         }
3106
3107         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3108                                                  num_online_cpus()));
3109         if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3110                 pr_info("rss_ring valid range [2 - %x] in powers of 2\n",
3111                         max_allowed);
3112                 return -EINVAL;
3113         }
3114         return 0;
3115 }
3116
3117 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len)
3118 {
3119         int err;
3120         struct net_device *netdev = adapter->netdev;
3121
3122         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3123                 return -EBUSY;
3124
3125         netif_device_detach(netdev);
3126         if (netif_running(netdev))
3127                 __qlcnic_down(adapter, netdev);
3128
3129         if (qlcnic_82xx_check(adapter)) {
3130                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
3131                         qlcnic_83xx_config_intrpt(adapter, 0);
3132                 qlcnic_83xx_free_mbx_intr(adapter);
3133         }
3134
3135         qlcnic_detach(adapter);
3136         qlcnic_teardown_intr(adapter);
3137         err = qlcnic_setup_intr(adapter, data);
3138         if (err)
3139                 dev_err(&adapter->pdev->dev,
3140                         "failed setting max_rss; rss disabled\n");
3141
3142         if (qlcnic_83xx_check(adapter)) {
3143                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3144                 if (err) {
3145                         dev_err(&adapter->pdev->dev,
3146                                 "failed to setup mbx interrupt\n");
3147                         goto done;
3148                 }
3149         }
3150
3151         if (netif_running(netdev)) {
3152                 err = qlcnic_attach(adapter);
3153                 if (err)
3154                         goto done;
3155                 err = __qlcnic_up(adapter, netdev);
3156                 if (err)
3157                         goto done;
3158                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3159         }
3160         err = len;
3161  done:
3162         netif_device_attach(netdev);
3163         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3164         return err;
3165 }
3166
3167 #ifdef CONFIG_INET
3168
3169 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3170
3171 static void
3172 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3173                         struct net_device *dev, unsigned long event)
3174 {
3175         struct in_device *indev;
3176
3177         indev = in_dev_get(dev);
3178         if (!indev)
3179                 return;
3180
3181         for_ifa(indev) {
3182                 switch (event) {
3183                 case NETDEV_UP:
3184                         qlcnic_config_ipaddr(adapter,
3185                                         ifa->ifa_address, QLCNIC_IP_UP);
3186                         break;
3187                 case NETDEV_DOWN:
3188                         qlcnic_config_ipaddr(adapter,
3189                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3190                         break;
3191                 default:
3192                         break;
3193                 }
3194         } endfor_ifa(indev);
3195
3196         in_dev_put(indev);
3197 }
3198
3199 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3200 {
3201         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3202         struct net_device *dev;
3203         u16 vid;
3204
3205         qlcnic_config_indev_addr(adapter, netdev, event);
3206
3207         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3208                 dev = __vlan_find_dev_deep(netdev, vid);
3209                 if (!dev)
3210                         continue;
3211                 qlcnic_config_indev_addr(adapter, dev, event);
3212         }
3213 }
3214
3215 static int qlcnic_netdev_event(struct notifier_block *this,
3216                                  unsigned long event, void *ptr)
3217 {
3218         struct qlcnic_adapter *adapter;
3219         struct net_device *dev = (struct net_device *)ptr;
3220
3221 recheck:
3222         if (dev == NULL)
3223                 goto done;
3224
3225         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3226                 dev = vlan_dev_real_dev(dev);
3227                 goto recheck;
3228         }
3229
3230         if (!is_qlcnic_netdev(dev))
3231                 goto done;
3232
3233         adapter = netdev_priv(dev);
3234
3235         if (!adapter)
3236                 goto done;
3237
3238         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3239                 goto done;
3240
3241         qlcnic_config_indev_addr(adapter, dev, event);
3242 done:
3243         return NOTIFY_DONE;
3244 }
3245
3246 static int
3247 qlcnic_inetaddr_event(struct notifier_block *this,
3248                 unsigned long event, void *ptr)
3249 {
3250         struct qlcnic_adapter *adapter;
3251         struct net_device *dev;
3252
3253         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3254
3255         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3256
3257 recheck:
3258         if (dev == NULL)
3259                 goto done;
3260
3261         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3262                 dev = vlan_dev_real_dev(dev);
3263                 goto recheck;
3264         }
3265
3266         if (!is_qlcnic_netdev(dev))
3267                 goto done;
3268
3269         adapter = netdev_priv(dev);
3270
3271         if (!adapter)
3272                 goto done;
3273
3274         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3275                 goto done;
3276
3277         switch (event) {
3278         case NETDEV_UP:
3279                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3280
3281                 break;
3282         case NETDEV_DOWN:
3283                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3284
3285                 break;
3286         default:
3287                 break;
3288         }
3289
3290 done:
3291         return NOTIFY_DONE;
3292 }
3293
3294 static struct notifier_block    qlcnic_netdev_cb = {
3295         .notifier_call = qlcnic_netdev_event,
3296 };
3297
3298 static struct notifier_block qlcnic_inetaddr_cb = {
3299         .notifier_call = qlcnic_inetaddr_event,
3300 };
3301 #else
3302 static void
3303 qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3304 { }
3305 #endif
3306 static struct pci_error_handlers qlcnic_err_handler = {
3307         .error_detected = qlcnic_io_error_detected,
3308         .slot_reset = qlcnic_io_slot_reset,
3309         .resume = qlcnic_io_resume,
3310 };
3311
3312 static struct pci_driver qlcnic_driver = {
3313         .name = qlcnic_driver_name,
3314         .id_table = qlcnic_pci_tbl,
3315         .probe = qlcnic_probe,
3316         .remove = qlcnic_remove,
3317 #ifdef CONFIG_PM
3318         .suspend = qlcnic_suspend,
3319         .resume = qlcnic_resume,
3320 #endif
3321         .shutdown = qlcnic_shutdown,
3322         .err_handler = &qlcnic_err_handler
3323
3324 };
3325
3326 static int __init qlcnic_init_module(void)
3327 {
3328         int ret;
3329
3330         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3331
3332 #ifdef CONFIG_INET
3333         register_netdevice_notifier(&qlcnic_netdev_cb);
3334         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3335 #endif
3336
3337         ret = pci_register_driver(&qlcnic_driver);
3338         if (ret) {
3339 #ifdef CONFIG_INET
3340                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3341                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3342 #endif
3343         }
3344
3345         return ret;
3346 }
3347
3348 module_init(qlcnic_init_module);
3349
3350 static void __exit qlcnic_exit_module(void)
3351 {
3352         pci_unregister_driver(&qlcnic_driver);
3353
3354 #ifdef CONFIG_INET
3355         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3356         unregister_netdevice_notifier(&qlcnic_netdev_cb);
3357 #endif
3358 }
3359
3360 module_exit(qlcnic_exit_module);