drivers/net/qlcnic/qlcnic_main.c

   1 /*
   2  * Copyright (C) 2009 - QLogic Corporation.
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  18  * MA  02111-1307, USA.
  19  *
  20  * The full GNU General Public License is included in this distribution
  21  * in the file called "COPYING".
  22  *
  23  */
  24
  25 #include <linux/slab.h>
  26 #include <linux/vmalloc.h>
  27 #include <linux/interrupt.h>
  28
  29 #include "qlcnic.h"
  30
  31 #include <linux/dma-mapping.h>
  32 #include <linux/if_vlan.h>
  33 #include <net/ip.h>
  34 #include <linux/ipv6.h>
  35 #include <linux/inetdevice.h>
  36 #include <linux/sysfs.h>
  37 #include <linux/aer.h>
  38
  39 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  40 MODULE_LICENSE("GPL");
  41 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  42 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  43
  44 char qlcnic_driver_name[] = "qlcnic";
  45 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  46         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  47
  48 static int port_mode = QLCNIC_PORT_MODE_AUTO_NEG;
  49
  50 /* Default to restricted 1G auto-neg mode */
  51 static int wol_port_mode = 5;
  52
  53 static int qlcnic_mac_learn;
  54 module_param(qlcnic_mac_learn, int, 0644);
  55 MODULE_PARM_DESC(qlcnic_mac_learn, "Mac Filter (0=disabled, 1=enabled)");
  56
  57 static int use_msi = 1;
  58 module_param(use_msi, int, 0644);
  59 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
  60
  61 static int use_msi_x = 1;
  62 module_param(use_msi_x, int, 0644);
  63 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
  64
  65 static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
  66 module_param(auto_fw_reset, int, 0644);
  67 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
  68
  69 static int load_fw_file;
  70 module_param(load_fw_file, int, 0644);
  71 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
  72
  73 static int qlcnic_config_npars;
  74 module_param(qlcnic_config_npars, int, 0644);
  75 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
  76
  77 static int __devinit qlcnic_probe(struct pci_dev *pdev,
  78                 const struct pci_device_id *ent);
  79 static void __devexit qlcnic_remove(struct pci_dev *pdev);
  80 static int qlcnic_open(struct net_device *netdev);
  81 static int qlcnic_close(struct net_device *netdev);
  82 static void qlcnic_tx_timeout(struct net_device *netdev);
  83 static void qlcnic_attach_work(struct work_struct *work);
  84 static void qlcnic_fwinit_work(struct work_struct *work);
  85 static void qlcnic_fw_poll_work(struct work_struct *work);
  86 static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
  87                 work_func_t func, int delay);
  88 static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
  89 static int qlcnic_poll(struct napi_struct *napi, int budget);
  90 static int qlcnic_rx_poll(struct napi_struct *napi, int budget);
  91 #ifdef CONFIG_NET_POLL_CONTROLLER
  92 static void qlcnic_poll_controller(struct net_device *netdev);
  93 #endif
  94
  95 static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter);
  96 static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter);
  97 static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
  98 static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
  99
 100 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
 101 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
 102 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
 103
 104 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
 105 static irqreturn_t qlcnic_intr(int irq, void *data);
 106 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
 107 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
 108
 109 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
 110 static void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long);
 111 static int qlcnic_start_firmware(struct qlcnic_adapter *);
 112
 113 static void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter);
 114 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
 115 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
 116 static int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32);
 117 static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32);
 118 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
 119 static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
 120                                 struct qlcnic_esw_func_cfg *);
 121 /*  PCI Device ID Table  */
 122 #define ENTRY(device) \
 123         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 124         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 125
 126 #define PCI_DEVICE_ID_QLOGIC_QLE824X  0x8020
 127
 128 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 129         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 130         {0,}
 131 };
 132
 133 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 134
 135
 136 void
 137 qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
 138                 struct qlcnic_host_tx_ring *tx_ring)
 139 {
 140         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 141 }
 142
 143 static const u32 msi_tgt_status[8] = {
 144         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 145         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 146         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 147         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 148 };
 149
 150 static const
 151 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 152
 153 static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
 154 {
 155         writel(0, sds_ring->crb_intr_mask);
 156 }
 157
 158 static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
 159 {
 160         struct qlcnic_adapter *adapter = sds_ring->adapter;
 161
 162         writel(0x1, sds_ring->crb_intr_mask);
 163
 164         if (!QLCNIC_IS_MSI_FAMILY(adapter))
 165                 writel(0xfbff, adapter->tgt_mask_reg);
 166 }
 167
 168 static int
 169 qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 170 {
 171         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 172
 173         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 174
 175         return recv_ctx->sds_rings == NULL;
 176 }
 177
 178 static void
 179 qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 180 {
 181         if (recv_ctx->sds_rings != NULL)
 182                 kfree(recv_ctx->sds_rings);
 183
 184         recv_ctx->sds_rings = NULL;
 185 }
 186
 187 static int
 188 qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
 189 {
 190         int ring;
 191         struct qlcnic_host_sds_ring *sds_ring;
 192         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 193
 194         if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
 195                 return -ENOMEM;
 196
 197         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 198                 sds_ring = &recv_ctx->sds_rings[ring];
 199
 200                 if (ring == adapter->max_sds_rings - 1)
 201                         netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll,
 202                                 QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings);
 203                 else
 204                         netif_napi_add(netdev, &sds_ring->napi,
 205                                 qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2);
 206         }
 207
 208         return 0;
 209 }
 210
 211 static void
 212 qlcnic_napi_del(struct qlcnic_adapter *adapter)
 213 {
 214         int ring;
 215         struct qlcnic_host_sds_ring *sds_ring;
 216         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 217
 218         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 219                 sds_ring = &recv_ctx->sds_rings[ring];
 220                 netif_napi_del(&sds_ring->napi);
 221         }
 222
 223         qlcnic_free_sds_rings(&adapter->recv_ctx);
 224 }
 225
 226 static void
 227 qlcnic_napi_enable(struct qlcnic_adapter *adapter)
 228 {
 229         int ring;
 230         struct qlcnic_host_sds_ring *sds_ring;
 231         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 232
 233         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 234                 return;
 235
 236         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 237                 sds_ring = &recv_ctx->sds_rings[ring];
 238                 napi_enable(&sds_ring->napi);
 239                 qlcnic_enable_int(sds_ring);
 240         }
 241 }
 242
 243 static void
 244 qlcnic_napi_disable(struct qlcnic_adapter *adapter)
 245 {
 246         int ring;
 247         struct qlcnic_host_sds_ring *sds_ring;
 248         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 249
 250         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 251                 return;
 252
 253         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 254                 sds_ring = &recv_ctx->sds_rings[ring];
 255                 qlcnic_disable_int(sds_ring);
 256                 napi_synchronize(&sds_ring->napi);
 257                 napi_disable(&sds_ring->napi);
 258         }
 259 }
 260
 261 static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
 262 {
 263         memset(&adapter->stats, 0, sizeof(adapter->stats));
 264 }
 265
 266 static void qlcnic_set_port_mode(struct qlcnic_adapter *adapter)
 267 {
 268         u32 val, data;
 269
 270         val = adapter->ahw.board_type;
 271         if ((val == QLCNIC_BRDTYPE_P3_HMEZ) ||
 272                 (val == QLCNIC_BRDTYPE_P3_XG_LOM)) {
 273                 if (port_mode == QLCNIC_PORT_MODE_802_3_AP) {
 274                         data = QLCNIC_PORT_MODE_802_3_AP;
 275                         QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
 276                 } else if (port_mode == QLCNIC_PORT_MODE_XG) {
 277                         data = QLCNIC_PORT_MODE_XG;
 278                         QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
 279                 } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_1G) {
 280                         data = QLCNIC_PORT_MODE_AUTO_NEG_1G;
 281                         QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
 282                 } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_XG) {
 283                         data = QLCNIC_PORT_MODE_AUTO_NEG_XG;
 284                         QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
 285                 } else {
 286                         data = QLCNIC_PORT_MODE_AUTO_NEG;
 287                         QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
 288                 }
 289
 290                 if ((wol_port_mode != QLCNIC_PORT_MODE_802_3_AP) &&
 291                         (wol_port_mode != QLCNIC_PORT_MODE_XG) &&
 292                         (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_1G) &&
 293                         (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_XG)) {
 294                         wol_port_mode = QLCNIC_PORT_MODE_AUTO_NEG;
 295                 }
 296                 QLCWR32(adapter, QLCNIC_WOL_PORT_MODE, wol_port_mode);
 297         }
 298 }
 299
 300 static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
 301 {
 302         u32 control;
 303         int pos;
 304
 305         pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
 306         if (pos) {
 307                 pci_read_config_dword(pdev, pos, &control);
 308                 if (enable)
 309                         control |= PCI_MSIX_FLAGS_ENABLE;
 310                 else
 311                         control = 0;
 312                 pci_write_config_dword(pdev, pos, control);
 313         }
 314 }
 315
 316 static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
 317 {
 318         int i;
 319
 320         for (i = 0; i < count; i++)
 321                 adapter->msix_entries[i].entry = i;
 322 }
 323
 324 static int
 325 qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 326 {
 327         u8 mac_addr[ETH_ALEN];
 328         struct net_device *netdev = adapter->netdev;
 329         struct pci_dev *pdev = adapter->pdev;
 330
 331         if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
 332                 return -EIO;
 333
 334         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 335         memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
 336         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 337
 338         /* set station address */
 339
 340         if (!is_valid_ether_addr(netdev->perm_addr))
 341                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 342                                         netdev->dev_addr);
 343
 344         return 0;
 345 }
 346
 347 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 348 {
 349         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 350         struct sockaddr *addr = p;
 351
 352         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 353                 return -EOPNOTSUPP;
 354
 355         if (!is_valid_ether_addr(addr->sa_data))
 356                 return -EINVAL;
 357
 358         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 359                 netif_device_detach(netdev);
 360                 qlcnic_napi_disable(adapter);
 361         }
 362
 363         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 364         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 365         qlcnic_set_multi(adapter->netdev);
 366
 367         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 368                 netif_device_attach(netdev);
 369                 qlcnic_napi_enable(adapter);
 370         }
 371         return 0;
 372 }
 373
 374 static void qlcnic_vlan_rx_register(struct net_device *netdev,
 375                 struct vlan_group *grp)
 376 {
 377         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 378         adapter->vlgrp = grp;
 379 }
 380
 381 static const struct net_device_ops qlcnic_netdev_ops = {
 382         .ndo_open          = qlcnic_open,
 383         .ndo_stop          = qlcnic_close,
 384         .ndo_start_xmit    = qlcnic_xmit_frame,
 385         .ndo_get_stats     = qlcnic_get_stats,
 386         .ndo_validate_addr = eth_validate_addr,
 387         .ndo_set_multicast_list = qlcnic_set_multi,
 388         .ndo_set_mac_address    = qlcnic_set_mac,
 389         .ndo_change_mtu    = qlcnic_change_mtu,
 390         .ndo_tx_timeout    = qlcnic_tx_timeout,
 391         .ndo_vlan_rx_register = qlcnic_vlan_rx_register,
 392 #ifdef CONFIG_NET_POLL_CONTROLLER
 393         .ndo_poll_controller = qlcnic_poll_controller,
 394 #endif
 395 };
 396
 397 static struct qlcnic_nic_template qlcnic_ops = {
 398         .config_bridged_mode = qlcnic_config_bridged_mode,
 399         .config_led = qlcnic_config_led,
 400         .start_firmware = qlcnic_start_firmware
 401 };
 402
 403 static struct qlcnic_nic_template qlcnic_vf_ops = {
 404         .config_bridged_mode = qlcnicvf_config_bridged_mode,
 405         .config_led = qlcnicvf_config_led,
 406         .start_firmware = qlcnicvf_start_firmware
 407 };
 408
 409 static void
 410 qlcnic_setup_intr(struct qlcnic_adapter *adapter)
 411 {
 412         const struct qlcnic_legacy_intr_set *legacy_intrp;
 413         struct pci_dev *pdev = adapter->pdev;
 414         int err, num_msix;
 415
 416         if (adapter->rss_supported) {
 417                 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
 418                         MSIX_ENTRIES_PER_ADAPTER : 2;
 419         } else
 420                 num_msix = 1;
 421
 422         adapter->max_sds_rings = 1;
 423
 424         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 425
 426         legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
 427
 428         adapter->int_vec_bit = legacy_intrp->int_vec_bit;
 429         adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
 430                         legacy_intrp->tgt_status_reg);
 431         adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
 432                         legacy_intrp->tgt_mask_reg);
 433         adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
 434
 435         adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
 436                         ISR_INT_STATE_REG);
 437
 438         qlcnic_set_msix_bit(pdev, 0);
 439
 440         if (adapter->msix_supported) {
 441
 442                 qlcnic_init_msix_entries(adapter, num_msix);
 443                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 444                 if (err == 0) {
 445                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 446                         qlcnic_set_msix_bit(pdev, 1);
 447
 448                         if (adapter->rss_supported)
 449                                 adapter->max_sds_rings = num_msix;
 450
 451                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 452                         return;
 453                 }
 454
 455                 if (err > 0)
 456                         pci_disable_msix(pdev);
 457
 458                 /* fall through for msi */
 459         }
 460
 461         if (use_msi && !pci_enable_msi(pdev)) {
 462                 adapter->flags |= QLCNIC_MSI_ENABLED;
 463                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
 464                                 msi_tgt_status[adapter->ahw.pci_func]);
 465                 dev_info(&pdev->dev, "using msi interrupts\n");
 466                 adapter->msix_entries[0].vector = pdev->irq;
 467                 return;
 468         }
 469
 470         dev_info(&pdev->dev, "using legacy interrupts\n");
 471         adapter->msix_entries[0].vector = pdev->irq;
 472 }
 473
 474 static void
 475 qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 476 {
 477         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 478                 pci_disable_msix(adapter->pdev);
 479         if (adapter->flags & QLCNIC_MSI_ENABLED)
 480                 pci_disable_msi(adapter->pdev);
 481 }
 482
 483 static void
 484 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
 485 {
 486         if (adapter->ahw.pci_base0 != NULL)
 487                 iounmap(adapter->ahw.pci_base0);
 488 }
 489
 490 static int
 491 qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 492 {
 493         struct qlcnic_pci_info *pci_info;
 494         int i, ret = 0;
 495         u8 pfn;
 496
 497         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 498         if (!pci_info)
 499                 return -ENOMEM;
 500
 501         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 502                                 QLCNIC_MAX_PCI_FUNC, GFP_KERNEL);
 503         if (!adapter->npars) {
 504                 ret = -ENOMEM;
 505                 goto err_pci_info;
 506         }
 507
 508         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 509                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 510         if (!adapter->eswitch) {
 511                 ret = -ENOMEM;
 512                 goto err_npars;
 513         }
 514
 515         ret = qlcnic_get_pci_info(adapter, pci_info);
 516         if (ret)
 517                 goto err_eswitch;
 518
 519         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 520                 pfn = pci_info[i].id;
 521                 if (pfn > QLCNIC_MAX_PCI_FUNC)
 522                         return QL_STATUS_INVALID_PARAM;
 523                 adapter->npars[pfn].active = pci_info[i].active;
 524                 adapter->npars[pfn].type = pci_info[i].type;
 525                 adapter->npars[pfn].phy_port = pci_info[i].default_port;
 526                 adapter->npars[pfn].min_bw = pci_info[i].tx_min_bw;
 527                 adapter->npars[pfn].max_bw = pci_info[i].tx_max_bw;
 528         }
 529
 530         for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
 531                 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 532
 533         kfree(pci_info);
 534         return 0;
 535
 536 err_eswitch:
 537         kfree(adapter->eswitch);
 538         adapter->eswitch = NULL;
 539 err_npars:
 540         kfree(adapter->npars);
 541         adapter->npars = NULL;
 542 err_pci_info:
 543         kfree(pci_info);
 544
 545         return ret;
 546 }
 547
 548 static int
 549 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 550 {
 551         u8 id;
 552         u32 ref_count;
 553         int i, ret = 1;
 554         u32 data = QLCNIC_MGMT_FUNC;
 555         void __iomem *priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
 556
 557         /* If other drivers are not in use set their privilege level */
 558         ref_count = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
 559         ret = qlcnic_api_lock(adapter);
 560         if (ret)
 561                 goto err_lock;
 562
 563         if (qlcnic_config_npars) {
 564                 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 565                         id = i;
 566                         if (adapter->npars[i].type != QLCNIC_TYPE_NIC ||
 567                                 id == adapter->ahw.pci_func)
 568                                 continue;
 569                         data |= (qlcnic_config_npars &
 570                                         QLC_DEV_SET_DRV(0xf, id));
 571                 }
 572         } else {
 573                 data = readl(priv_op);
 574                 data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw.pci_func)) |
 575                         (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
 576                         adapter->ahw.pci_func));
 577         }
 578         writel(data, priv_op);
 579         qlcnic_api_unlock(adapter);
 580 err_lock:
 581         return ret;
 582 }
 583
 584 static void
 585 qlcnic_check_vf(struct qlcnic_adapter *adapter)
 586 {
 587         void __iomem *msix_base_addr;
 588         void __iomem *priv_op;
 589         u32 func;
 590         u32 msix_base;
 591         u32 op_mode, priv_level;
 592
 593         /* Determine FW API version */
 594         adapter->fw_hal_version = readl(adapter->ahw.pci_base0 + QLCNIC_FW_API);
 595
 596         /* Find PCI function number */
 597         pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
 598         msix_base_addr = adapter->ahw.pci_base0 + QLCNIC_MSIX_BASE;
 599         msix_base = readl(msix_base_addr);
 600         func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
 601         adapter->ahw.pci_func = func;
 602
 603         /* Determine function privilege level */
 604         priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
 605         op_mode = readl(priv_op);
 606         if (op_mode == QLC_DEV_DRV_DEFAULT)
 607                 priv_level = QLCNIC_MGMT_FUNC;
 608         else
 609                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
 610
 611         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 612                 adapter->op_mode = QLCNIC_NON_PRIV_FUNC;
 613                 dev_info(&adapter->pdev->dev,
 614                         "HAL Version: %d Non Privileged function\n",
 615                         adapter->fw_hal_version);
 616                 adapter->nic_ops = &qlcnic_vf_ops;
 617         } else
 618                 adapter->nic_ops = &qlcnic_ops;
 619 }
 620
 621 static int
 622 qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
 623 {
 624         void __iomem *mem_ptr0 = NULL;
 625         resource_size_t mem_base;
 626         unsigned long mem_len, pci_len0 = 0;
 627
 628         struct pci_dev *pdev = adapter->pdev;
 629
 630         /* remap phys address */
 631         mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
 632         mem_len = pci_resource_len(pdev, 0);
 633
 634         if (mem_len == QLCNIC_PCI_2MB_SIZE) {
 635
 636                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 637                 if (mem_ptr0 == NULL) {
 638                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 639                         return -EIO;
 640                 }
 641                 pci_len0 = mem_len;
 642         } else {
 643                 return -EIO;
 644         }
 645
 646         dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
 647
 648         adapter->ahw.pci_base0 = mem_ptr0;
 649         adapter->ahw.pci_len0 = pci_len0;
 650
 651         qlcnic_check_vf(adapter);
 652
 653         adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter,
 654                 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(adapter->ahw.pci_func)));
 655
 656         return 0;
 657 }
 658
 659 static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
 660 {
 661         struct pci_dev *pdev = adapter->pdev;
 662         int i, found = 0;
 663
 664         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 665                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 666                         qlcnic_boards[i].device == pdev->device &&
 667                         qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
 668                         qlcnic_boards[i].sub_device == pdev->subsystem_device) {
 669                                 sprintf(name, "%pM: %s" ,
 670                                         adapter->mac_addr,
 671                                         qlcnic_boards[i].short_name);
 672                                 found = 1;
 673                                 break;
 674                 }
 675
 676         }
 677
 678         if (!found)
 679                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 680 }
 681
 682 static void
 683 qlcnic_check_options(struct qlcnic_adapter *adapter)
 684 {
 685         u32 fw_major, fw_minor, fw_build;
 686         struct pci_dev *pdev = adapter->pdev;
 687
 688         fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 689         fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
 690         fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
 691
 692         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 693
 694         dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
 695                         fw_major, fw_minor, fw_build);
 696
 697         adapter->flags &= ~QLCNIC_LRO_ENABLED;
 698
 699         if (adapter->ahw.port_type == QLCNIC_XGBE) {
 700                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 701                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 702         } else if (adapter->ahw.port_type == QLCNIC_GBE) {
 703                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 704                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 705         }
 706
 707         adapter->msix_supported = !!use_msi_x;
 708         adapter->rss_supported = !!use_msi_x;
 709
 710         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 711
 712         adapter->max_rds_rings = MAX_RDS_RINGS;
 713 }
 714
 715 static int
 716 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 717 {
 718         int err;
 719         struct qlcnic_info nic_info;
 720
 721         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw.pci_func);
 722         if (err)
 723                 return err;
 724
 725         adapter->physical_port = nic_info.phys_port;
 726         adapter->switch_mode = nic_info.switch_mode;
 727         adapter->max_tx_ques = nic_info.max_tx_ques;
 728         adapter->max_rx_ques = nic_info.max_rx_ques;
 729         adapter->capabilities = nic_info.capabilities;
 730         adapter->max_mac_filters = nic_info.max_mac_filters;
 731         adapter->max_mtu = nic_info.max_mtu;
 732
 733         if (adapter->capabilities & BIT_6)
 734                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
 735         else
 736                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 737
 738         return err;
 739 }
 740
 741 static void
 742 qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
 743                 struct qlcnic_esw_func_cfg *esw_cfg)
 744 {
 745         if (esw_cfg->discard_tagged)
 746                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
 747         else
 748                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
 749
 750         if (esw_cfg->vlan_id)
 751                 adapter->pvid = esw_cfg->vlan_id;
 752         else
 753                 adapter->pvid = 0;
 754 }
 755
 756 static void
 757 qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
 758                 struct qlcnic_esw_func_cfg *esw_cfg)
 759 {
 760         adapter->flags &= ~QLCNIC_MACSPOOF;
 761         adapter->flags &= ~QLCNIC_MAC_OVERRIDE_DISABLED;
 762
 763         if (esw_cfg->mac_anti_spoof)
 764                 adapter->flags |= QLCNIC_MACSPOOF;
 765
 766         if (!esw_cfg->mac_override)
 767                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
 768
 769         qlcnic_set_netdev_features(adapter, esw_cfg);
 770 }
 771
 772 static int
 773 qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
 774 {
 775         struct qlcnic_esw_func_cfg esw_cfg;
 776
 777         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
 778                 return 0;
 779
 780         esw_cfg.pci_func = adapter->ahw.pci_func;
 781         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
 782                         return -EIO;
 783         qlcnic_set_vlan_config(adapter, &esw_cfg);
 784         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
 785
 786         return 0;
 787 }
 788
 789 static void
 790 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
 791                 struct qlcnic_esw_func_cfg *esw_cfg)
 792 {
 793         struct net_device *netdev = adapter->netdev;
 794         unsigned long features, vlan_features;
 795
 796         features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 797                         NETIF_F_IPV6_CSUM | NETIF_F_GRO);
 798         vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 799                         NETIF_F_IPV6_CSUM);
 800
 801         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
 802                 features |= (NETIF_F_TSO | NETIF_F_TSO6);
 803                 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
 804         }
 805         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
 806                 features |= NETIF_F_LRO;
 807
 808         if (esw_cfg->offload_flags & BIT_0) {
 809                 netdev->features |= features;
 810                 adapter->rx_csum = 1;
 811                 if (!(esw_cfg->offload_flags & BIT_1))
 812                         netdev->features &= ~NETIF_F_TSO;
 813                 if (!(esw_cfg->offload_flags & BIT_2))
 814                         netdev->features &= ~NETIF_F_TSO6;
 815         } else {
 816                 netdev->features &= ~features;
 817                 adapter->rx_csum = 0;
 818         }
 819
 820         netdev->vlan_features = (features & vlan_features);
 821 }
 822
 823 static int
 824 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
 825 {
 826         void __iomem *priv_op;
 827         u32 op_mode, priv_level;
 828         int err = 0;
 829
 830         err = qlcnic_initialize_nic(adapter);
 831         if (err)
 832                 return err;
 833
 834         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
 835                 return 0;
 836
 837         priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
 838         op_mode = readl(priv_op);
 839         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
 840
 841         if (op_mode == QLC_DEV_DRV_DEFAULT)
 842                 priv_level = QLCNIC_MGMT_FUNC;
 843         else
 844                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
 845
 846         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 847                 if (priv_level == QLCNIC_MGMT_FUNC) {
 848                         adapter->op_mode = QLCNIC_MGMT_FUNC;
 849                         err = qlcnic_init_pci_info(adapter);
 850                         if (err)
 851                                 return err;
 852                         /* Set privilege level for other functions */
 853                         qlcnic_set_function_modes(adapter);
 854                         dev_info(&adapter->pdev->dev,
 855                                 "HAL Version: %d, Management function\n",
 856                                 adapter->fw_hal_version);
 857                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
 858                         adapter->op_mode = QLCNIC_PRIV_FUNC;
 859                         dev_info(&adapter->pdev->dev,
 860                                 "HAL Version: %d, Privileged function\n",
 861                                 adapter->fw_hal_version);
 862                 }
 863         }
 864
 865         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
 866
 867         return err;
 868 }
 869
 870 static int
 871 qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
 872 {
 873         struct qlcnic_esw_func_cfg esw_cfg;
 874         struct qlcnic_npar_info *npar;
 875         u8 i;
 876
 877         if (adapter->need_fw_reset)
 878                 return 0;
 879
 880         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 881                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
 882                         continue;
 883                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
 884                 esw_cfg.pci_func = i;
 885                 esw_cfg.offload_flags = BIT_0;
 886                 esw_cfg.mac_override = BIT_0;
 887                 if (adapter->capabilities  & QLCNIC_FW_CAPABILITY_TSO)
 888                         esw_cfg.offload_flags |= (BIT_1 | BIT_2);
 889                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
 890                         return -EIO;
 891                 npar = &adapter->npars[i];
 892                 npar->pvid = esw_cfg.vlan_id;
 893                 npar->mac_override = esw_cfg.mac_override;
 894                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
 895                 npar->discard_tagged = esw_cfg.discard_tagged;
 896                 npar->promisc_mode = esw_cfg.promisc_mode;
 897                 npar->offload_flags = esw_cfg.offload_flags;
 898         }
 899
 900         return 0;
 901 }
 902
 903 static int
 904 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
 905                         struct qlcnic_npar_info *npar, int pci_func)
 906 {
 907         struct qlcnic_esw_func_cfg esw_cfg;
 908         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
 909         esw_cfg.pci_func = pci_func;
 910         esw_cfg.vlan_id = npar->pvid;
 911         esw_cfg.mac_override = npar->mac_override;
 912         esw_cfg.discard_tagged = npar->discard_tagged;
 913         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
 914         esw_cfg.offload_flags = npar->offload_flags;
 915         esw_cfg.promisc_mode = npar->promisc_mode;
 916         if (qlcnic_config_switch_port(adapter, &esw_cfg))
 917                 return -EIO;
 918
 919         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
 920         if (qlcnic_config_switch_port(adapter, &esw_cfg))
 921                 return -EIO;
 922
 923         return 0;
 924 }
 925
 926 static int
 927 qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
 928 {
 929         int i, err;
 930         struct qlcnic_npar_info *npar;
 931         struct qlcnic_info nic_info;
 932
 933         if (!adapter->need_fw_reset)
 934                 return 0;
 935
 936         /* Set the NPAR config data after FW reset */
 937         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 938                 npar = &adapter->npars[i];
 939                 if (npar->type != QLCNIC_TYPE_NIC)
 940                         continue;
 941                 err = qlcnic_get_nic_info(adapter, &nic_info, i);
 942                 if (err)
 943                         return err;
 944                 nic_info.min_tx_bw = npar->min_bw;
 945                 nic_info.max_tx_bw = npar->max_bw;
 946                 err = qlcnic_set_nic_info(adapter, &nic_info);
 947                 if (err)
 948                         return err;
 949
 950                 if (npar->enable_pm) {
 951                         err = qlcnic_config_port_mirroring(adapter,
 952                                                         npar->dest_npar, 1, i);
 953                         if (err)
 954                                 return err;
 955                 }
 956                 err = qlcnic_reset_eswitch_config(adapter, npar, i);
 957                 if (err)
 958                         return err;
 959         }
 960         return 0;
 961 }
 962
 963 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
 964 {
 965         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
 966         u32 npar_state;
 967
 968         if (adapter->op_mode == QLCNIC_MGMT_FUNC)
 969                 return 0;
 970
 971         npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
 972         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
 973                 msleep(1000);
 974                 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
 975         }
 976         if (!npar_opt_timeo) {
 977                 dev_err(&adapter->pdev->dev,
 978                         "Waiting for NPAR state to opertional timeout\n");
 979                 return -EIO;
 980         }
 981         return 0;
 982 }
 983
 984 static int
 985 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
 986 {
 987         int err;
 988
 989         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 990                     adapter->op_mode != QLCNIC_MGMT_FUNC)
 991                 return 0;
 992
 993         err = qlcnic_set_default_offload_settings(adapter);
 994         if (err)
 995                 return err;
 996
 997         err = qlcnic_reset_npar_config(adapter);
 998         if (err)
 999                 return err;
1000
1001         qlcnic_dev_set_npar_ready(adapter);
1002
1003         return err;
1004 }
1005
1006 static int
1007 qlcnic_start_firmware(struct qlcnic_adapter *adapter)
1008 {
1009         int err;
1010
1011         err = qlcnic_can_start_firmware(adapter);
1012         if (err < 0)
1013                 return err;
1014         else if (!err)
1015                 goto check_fw_status;
1016
1017         if (load_fw_file)
1018                 qlcnic_request_firmware(adapter);
1019         else {
1020                 err = qlcnic_check_flash_fw_ver(adapter);
1021                 if (err)
1022                         goto err_out;
1023
1024                 adapter->fw_type = QLCNIC_FLASH_ROMIMAGE;
1025         }
1026
1027         err = qlcnic_need_fw_reset(adapter);
1028         if (err == 0)
1029                 goto check_fw_status;
1030
1031         err = qlcnic_pinit_from_rom(adapter);
1032         if (err)
1033                 goto err_out;
1034         qlcnic_set_port_mode(adapter);
1035
1036         err = qlcnic_load_firmware(adapter);
1037         if (err)
1038                 goto err_out;
1039
1040         qlcnic_release_firmware(adapter);
1041         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1042
1043 check_fw_status:
1044         err = qlcnic_check_fw_status(adapter);
1045         if (err)
1046                 goto err_out;
1047
1048         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1049         qlcnic_idc_debug_info(adapter, 1);
1050
1051         err = qlcnic_check_eswitch_mode(adapter);
1052         if (err) {
1053                 dev_err(&adapter->pdev->dev,
1054                         "Memory allocation failed for eswitch\n");
1055                 goto err_out;
1056         }
1057         err = qlcnic_set_mgmt_operations(adapter);
1058         if (err)
1059                 goto err_out;
1060
1061         qlcnic_check_options(adapter);
1062         adapter->need_fw_reset = 0;
1063
1064         qlcnic_release_firmware(adapter);
1065         return 0;
1066
1067 err_out:
1068         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1069         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1070
1071         qlcnic_release_firmware(adapter);
1072         return err;
1073 }
1074
1075 static int
1076 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1077 {
1078         irq_handler_t handler;
1079         struct qlcnic_host_sds_ring *sds_ring;
1080         int err, ring;
1081
1082         unsigned long flags = 0;
1083         struct net_device *netdev = adapter->netdev;
1084         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1085
1086         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1087                 handler = qlcnic_tmp_intr;
1088                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1089                         flags |= IRQF_SHARED;
1090
1091         } else {
1092                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1093                         handler = qlcnic_msix_intr;
1094                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1095                         handler = qlcnic_msi_intr;
1096                 else {
1097                         flags |= IRQF_SHARED;
1098                         handler = qlcnic_intr;
1099                 }
1100         }
1101         adapter->irq = netdev->irq;
1102
1103         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1104                 sds_ring = &recv_ctx->sds_rings[ring];
1105                 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1106                 err = request_irq(sds_ring->irq, handler,
1107                                   flags, sds_ring->name, sds_ring);
1108                 if (err)
1109                         return err;
1110         }
1111
1112         return 0;
1113 }
1114
1115 static void
1116 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1117 {
1118         int ring;
1119         struct qlcnic_host_sds_ring *sds_ring;
1120
1121         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1122
1123         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1124                 sds_ring = &recv_ctx->sds_rings[ring];
1125                 free_irq(sds_ring->irq, sds_ring);
1126         }
1127 }
1128
1129 static void
1130 qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter)
1131 {
1132         adapter->coal.flags = QLCNIC_INTR_DEFAULT;
1133         adapter->coal.normal.data.rx_time_us =
1134                 QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1135         adapter->coal.normal.data.rx_packets =
1136                 QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1137         adapter->coal.normal.data.tx_time_us =
1138                 QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US;
1139         adapter->coal.normal.data.tx_packets =
1140                 QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS;
1141 }
1142
1143 static int
1144 __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1145 {
1146         int ring;
1147         struct qlcnic_host_rds_ring *rds_ring;
1148
1149         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1150                 return -EIO;
1151
1152         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1153                 return 0;
1154         if (qlcnic_set_eswitch_port_config(adapter))
1155                 return -EIO;
1156
1157         if (qlcnic_fw_create_ctx(adapter))
1158                 return -EIO;
1159
1160         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1161                 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1162                 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
1163         }
1164
1165         qlcnic_set_multi(netdev);
1166         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1167
1168         adapter->ahw.linkup = 0;
1169
1170         if (adapter->max_sds_rings > 1)
1171                 qlcnic_config_rss(adapter, 1);
1172
1173         qlcnic_config_intr_coalesce(adapter);
1174
1175         if (netdev->features & NETIF_F_LRO)
1176                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1177
1178         qlcnic_napi_enable(adapter);
1179
1180         qlcnic_linkevent_request(adapter, 1);
1181
1182         adapter->reset_context = 0;
1183         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1184         return 0;
1185 }
1186
1187 /* Usage: During resume and firmware recovery module.*/
1188
1189 static int
1190 qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1191 {
1192         int err = 0;
1193
1194         rtnl_lock();
1195         if (netif_running(netdev))
1196                 err = __qlcnic_up(adapter, netdev);
1197         rtnl_unlock();
1198
1199         return err;
1200 }
1201
1202 static void
1203 __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1204 {
1205         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1206                 return;
1207
1208         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1209                 return;
1210
1211         smp_mb();
1212         spin_lock(&adapter->tx_clean_lock);
1213         netif_carrier_off(netdev);
1214         netif_tx_disable(netdev);
1215
1216         qlcnic_free_mac_list(adapter);
1217
1218         if (adapter->fhash.fnum)
1219                 qlcnic_delete_lb_filters(adapter);
1220
1221         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1222
1223         qlcnic_napi_disable(adapter);
1224
1225         qlcnic_fw_destroy_ctx(adapter);
1226
1227         qlcnic_reset_rx_buffers_list(adapter);
1228         qlcnic_release_tx_buffers(adapter);
1229         spin_unlock(&adapter->tx_clean_lock);
1230 }
1231
1232 /* Usage: During suspend and firmware recovery module */
1233
1234 static void
1235 qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1236 {
1237         rtnl_lock();
1238         if (netif_running(netdev))
1239                 __qlcnic_down(adapter, netdev);
1240         rtnl_unlock();
1241
1242 }
1243
1244 static int
1245 qlcnic_attach(struct qlcnic_adapter *adapter)
1246 {
1247         struct net_device *netdev = adapter->netdev;
1248         struct pci_dev *pdev = adapter->pdev;
1249         int err;
1250
1251         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1252                 return 0;
1253
1254         err = qlcnic_napi_add(adapter, netdev);
1255         if (err)
1256                 return err;
1257
1258         err = qlcnic_alloc_sw_resources(adapter);
1259         if (err) {
1260                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1261                 goto err_out_napi_del;
1262         }
1263
1264         err = qlcnic_alloc_hw_resources(adapter);
1265         if (err) {
1266                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1267                 goto err_out_free_sw;
1268         }
1269
1270         err = qlcnic_request_irq(adapter);
1271         if (err) {
1272                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1273                 goto err_out_free_hw;
1274         }
1275
1276         qlcnic_init_coalesce_defaults(adapter);
1277
1278         qlcnic_create_sysfs_entries(adapter);
1279
1280         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1281         return 0;
1282
1283 err_out_free_hw:
1284         qlcnic_free_hw_resources(adapter);
1285 err_out_free_sw:
1286         qlcnic_free_sw_resources(adapter);
1287 err_out_napi_del:
1288         qlcnic_napi_del(adapter);
1289         return err;
1290 }
1291
1292 static void
1293 qlcnic_detach(struct qlcnic_adapter *adapter)
1294 {
1295         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1296                 return;
1297
1298         qlcnic_remove_sysfs_entries(adapter);
1299
1300         qlcnic_free_hw_resources(adapter);
1301         qlcnic_release_rx_buffers(adapter);
1302         qlcnic_free_irq(adapter);
1303         qlcnic_napi_del(adapter);
1304         qlcnic_free_sw_resources(adapter);
1305
1306         adapter->is_up = 0;
1307 }
1308
1309 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1310 {
1311         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1312         struct qlcnic_host_sds_ring *sds_ring;
1313         int ring;
1314
1315         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1316         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1317                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1318                         sds_ring = &adapter->recv_ctx.sds_rings[ring];
1319                         qlcnic_disable_int(sds_ring);
1320                 }
1321         }
1322
1323         qlcnic_fw_destroy_ctx(adapter);
1324
1325         qlcnic_detach(adapter);
1326
1327         adapter->diag_test = 0;
1328         adapter->max_sds_rings = max_sds_rings;
1329
1330         if (qlcnic_attach(adapter))
1331                 goto out;
1332
1333         if (netif_running(netdev))
1334                 __qlcnic_up(adapter, netdev);
1335 out:
1336         netif_device_attach(netdev);
1337 }
1338
1339 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1340 {
1341         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1342         struct qlcnic_host_sds_ring *sds_ring;
1343         struct qlcnic_host_rds_ring *rds_ring;
1344         int ring;
1345         int ret;
1346
1347         netif_device_detach(netdev);
1348
1349         if (netif_running(netdev))
1350                 __qlcnic_down(adapter, netdev);
1351
1352         qlcnic_detach(adapter);
1353
1354         adapter->max_sds_rings = 1;
1355         adapter->diag_test = test;
1356
1357         ret = qlcnic_attach(adapter);
1358         if (ret) {
1359                 netif_device_attach(netdev);
1360                 return ret;
1361         }
1362
1363         ret = qlcnic_fw_create_ctx(adapter);
1364         if (ret) {
1365                 qlcnic_detach(adapter);
1366                 netif_device_attach(netdev);
1367                 return ret;
1368         }
1369
1370         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1371                 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1372                 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
1373         }
1374
1375         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1376                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1377                         sds_ring = &adapter->recv_ctx.sds_rings[ring];
1378                         qlcnic_enable_int(sds_ring);
1379                 }
1380         }
1381         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1382
1383         return 0;
1384 }
1385
1386 /* Reset context in hardware only */
1387 static int
1388 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1389 {
1390         struct net_device *netdev = adapter->netdev;
1391
1392         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1393                 return -EBUSY;
1394
1395         netif_device_detach(netdev);
1396
1397         qlcnic_down(adapter, netdev);
1398
1399         qlcnic_up(adapter, netdev);
1400
1401         netif_device_attach(netdev);
1402
1403         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1404         return 0;
1405 }
1406
1407 int
1408 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1409 {
1410         int err = 0;
1411         struct net_device *netdev = adapter->netdev;
1412
1413         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1414                 return -EBUSY;
1415
1416         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1417
1418                 netif_device_detach(netdev);
1419
1420                 if (netif_running(netdev))
1421                         __qlcnic_down(adapter, netdev);
1422
1423                 qlcnic_detach(adapter);
1424
1425                 if (netif_running(netdev)) {
1426                         err = qlcnic_attach(adapter);
1427                         if (!err)
1428                                 __qlcnic_up(adapter, netdev);
1429                 }
1430
1431                 netif_device_attach(netdev);
1432         }
1433
1434         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1435         return err;
1436 }
1437
1438 static int
1439 qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
1440                 struct net_device *netdev, u8 pci_using_dac)
1441 {
1442         int err;
1443         struct pci_dev *pdev = adapter->pdev;
1444
1445         adapter->rx_csum = 1;
1446         adapter->mc_enabled = 0;
1447         adapter->max_mc_count = 38;
1448
1449         netdev->netdev_ops         = &qlcnic_netdev_ops;
1450         netdev->watchdog_timeo     = 5*HZ;
1451
1452         qlcnic_change_mtu(netdev, netdev->mtu);
1453
1454         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1455
1456         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1457                 NETIF_F_IPV6_CSUM | NETIF_F_GRO | NETIF_F_HW_VLAN_RX);
1458         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1459                 NETIF_F_IPV6_CSUM);
1460
1461         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
1462                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1463                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1464         }
1465
1466         if (pci_using_dac) {
1467                 netdev->features |= NETIF_F_HIGHDMA;
1468                 netdev->vlan_features |= NETIF_F_HIGHDMA;
1469         }
1470
1471         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
1472                 netdev->features |= (NETIF_F_HW_VLAN_TX);
1473
1474         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1475                 netdev->features |= NETIF_F_LRO;
1476         netdev->irq = adapter->msix_entries[0].vector;
1477
1478         netif_carrier_off(netdev);
1479         netif_stop_queue(netdev);
1480
1481         err = register_netdev(netdev);
1482         if (err) {
1483                 dev_err(&pdev->dev, "failed to register net device\n");
1484                 return err;
1485         }
1486
1487         return 0;
1488 }
1489
1490 static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac)
1491 {
1492         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1493                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1494                 *pci_using_dac = 1;
1495         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1496                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1497                 *pci_using_dac = 0;
1498         else {
1499                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1500                 return -EIO;
1501         }
1502
1503         return 0;
1504 }
1505
1506 static int __devinit
1507 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1508 {
1509         struct net_device *netdev = NULL;
1510         struct qlcnic_adapter *adapter = NULL;
1511         int err;
1512         uint8_t revision_id;
1513         uint8_t pci_using_dac;
1514         char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
1515
1516         err = pci_enable_device(pdev);
1517         if (err)
1518                 return err;
1519
1520         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1521                 err = -ENODEV;
1522                 goto err_out_disable_pdev;
1523         }
1524
1525         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1526         if (err)
1527                 goto err_out_disable_pdev;
1528
1529         err = pci_request_regions(pdev, qlcnic_driver_name);
1530         if (err)
1531                 goto err_out_disable_pdev;
1532
1533         pci_set_master(pdev);
1534         pci_enable_pcie_error_reporting(pdev);
1535
1536         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1537         if (!netdev) {
1538                 dev_err(&pdev->dev, "failed to allocate net_device\n");
1539                 err = -ENOMEM;
1540                 goto err_out_free_res;
1541         }
1542
1543         SET_NETDEV_DEV(netdev, &pdev->dev);
1544
1545         adapter = netdev_priv(netdev);
1546         adapter->netdev  = netdev;
1547         adapter->pdev    = pdev;
1548         adapter->dev_rst_time = jiffies;
1549
1550         revision_id = pdev->revision;
1551         adapter->ahw.revision_id = revision_id;
1552
1553         rwlock_init(&adapter->ahw.crb_lock);
1554         mutex_init(&adapter->ahw.mem_lock);
1555
1556         spin_lock_init(&adapter->tx_clean_lock);
1557         INIT_LIST_HEAD(&adapter->mac_list);
1558
1559         err = qlcnic_setup_pci_map(adapter);
1560         if (err)
1561                 goto err_out_free_netdev;
1562
1563         /* This will be reset for mezz cards  */
1564         adapter->portnum = adapter->ahw.pci_func;
1565
1566         err = qlcnic_get_board_info(adapter);
1567         if (err) {
1568                 dev_err(&pdev->dev, "Error getting board config info.\n");
1569                 goto err_out_iounmap;
1570         }
1571
1572         err = qlcnic_setup_idc_param(adapter);
1573         if (err)
1574                 goto err_out_iounmap;
1575
1576         err = adapter->nic_ops->start_firmware(adapter);
1577         if (err) {
1578                 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1579                 goto err_out_decr_ref;
1580         }
1581
1582         if (qlcnic_read_mac_addr(adapter))
1583                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1584
1585         if (adapter->portnum == 0) {
1586                 get_brd_name(adapter, brd_name);
1587
1588                 pr_info("%s: %s Board Chip rev 0x%x\n",
1589                                 module_name(THIS_MODULE),
1590                                 brd_name, adapter->ahw.revision_id);
1591         }
1592
1593         qlcnic_clear_stats(adapter);
1594
1595         qlcnic_setup_intr(adapter);
1596
1597         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1598         if (err)
1599                 goto err_out_disable_msi;
1600
1601         pci_set_drvdata(pdev, adapter);
1602
1603         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1604
1605         switch (adapter->ahw.port_type) {
1606         case QLCNIC_GBE:
1607                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1608                                 adapter->netdev->name);
1609                 break;
1610         case QLCNIC_XGBE:
1611                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1612                                 adapter->netdev->name);
1613                 break;
1614         }
1615
1616         qlcnic_alloc_lb_filters_mem(adapter);
1617         qlcnic_create_diag_entries(adapter);
1618
1619         return 0;
1620
1621 err_out_disable_msi:
1622         qlcnic_teardown_intr(adapter);
1623
1624 err_out_decr_ref:
1625         qlcnic_clr_all_drv_state(adapter, 0);
1626
1627 err_out_iounmap:
1628         qlcnic_cleanup_pci_map(adapter);
1629
1630 err_out_free_netdev:
1631         free_netdev(netdev);
1632
1633 err_out_free_res:
1634         pci_release_regions(pdev);
1635
1636 err_out_disable_pdev:
1637         pci_set_drvdata(pdev, NULL);
1638         pci_disable_device(pdev);
1639         return err;
1640 }
1641
1642 static void __devexit qlcnic_remove(struct pci_dev *pdev)
1643 {
1644         struct qlcnic_adapter *adapter;
1645         struct net_device *netdev;
1646
1647         adapter = pci_get_drvdata(pdev);
1648         if (adapter == NULL)
1649                 return;
1650
1651         netdev = adapter->netdev;
1652
1653         qlcnic_cancel_fw_work(adapter);
1654
1655         unregister_netdev(netdev);
1656
1657         qlcnic_detach(adapter);
1658
1659         if (adapter->npars != NULL)
1660                 kfree(adapter->npars);
1661         if (adapter->eswitch != NULL)
1662                 kfree(adapter->eswitch);
1663
1664         qlcnic_clr_all_drv_state(adapter, 0);
1665
1666         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1667
1668         qlcnic_free_lb_filters_mem(adapter);
1669
1670         qlcnic_teardown_intr(adapter);
1671
1672         qlcnic_remove_diag_entries(adapter);
1673
1674         qlcnic_cleanup_pci_map(adapter);
1675
1676         qlcnic_release_firmware(adapter);
1677
1678         pci_disable_pcie_error_reporting(pdev);
1679         pci_release_regions(pdev);
1680         pci_disable_device(pdev);
1681         pci_set_drvdata(pdev, NULL);
1682
1683         free_netdev(netdev);
1684 }
1685 static int __qlcnic_shutdown(struct pci_dev *pdev)
1686 {
1687         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1688         struct net_device *netdev = adapter->netdev;
1689         int retval;
1690
1691         netif_device_detach(netdev);
1692
1693         qlcnic_cancel_fw_work(adapter);
1694
1695         if (netif_running(netdev))
1696                 qlcnic_down(adapter, netdev);
1697
1698         qlcnic_clr_all_drv_state(adapter, 0);
1699
1700         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1701
1702         retval = pci_save_state(pdev);
1703         if (retval)
1704                 return retval;
1705
1706         if (qlcnic_wol_supported(adapter)) {
1707                 pci_enable_wake(pdev, PCI_D3cold, 1);
1708                 pci_enable_wake(pdev, PCI_D3hot, 1);
1709         }
1710
1711         return 0;
1712 }
1713
1714 static void qlcnic_shutdown(struct pci_dev *pdev)
1715 {
1716         if (__qlcnic_shutdown(pdev))
1717                 return;
1718
1719         pci_disable_device(pdev);
1720 }
1721
1722 #ifdef CONFIG_PM
1723 static int
1724 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1725 {
1726         int retval;
1727
1728         retval = __qlcnic_shutdown(pdev);
1729         if (retval)
1730                 return retval;
1731
1732         pci_set_power_state(pdev, pci_choose_state(pdev, state));
1733         return 0;
1734 }
1735
1736 static int
1737 qlcnic_resume(struct pci_dev *pdev)
1738 {
1739         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1740         struct net_device *netdev = adapter->netdev;
1741         int err;
1742
1743         err = pci_enable_device(pdev);
1744         if (err)
1745                 return err;
1746
1747         pci_set_power_state(pdev, PCI_D0);
1748         pci_set_master(pdev);
1749         pci_restore_state(pdev);
1750
1751         err = adapter->nic_ops->start_firmware(adapter);
1752         if (err) {
1753                 dev_err(&pdev->dev, "failed to start firmware\n");
1754                 return err;
1755         }
1756
1757         if (netif_running(netdev)) {
1758                 err = qlcnic_up(adapter, netdev);
1759                 if (err)
1760                         goto done;
1761
1762                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1763         }
1764 done:
1765         netif_device_attach(netdev);
1766         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1767         return 0;
1768 }
1769 #endif
1770
1771 static int qlcnic_open(struct net_device *netdev)
1772 {
1773         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1774         int err;
1775
1776         err = qlcnic_attach(adapter);
1777         if (err)
1778                 return err;
1779
1780         err = __qlcnic_up(adapter, netdev);
1781         if (err)
1782                 goto err_out;
1783
1784         netif_start_queue(netdev);
1785
1786         return 0;
1787
1788 err_out:
1789         qlcnic_detach(adapter);
1790         return err;
1791 }
1792
1793 /*
1794  * qlcnic_close - Disables a network interface entry point
1795  */
1796 static int qlcnic_close(struct net_device *netdev)
1797 {
1798         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1799
1800         __qlcnic_down(adapter, netdev);
1801         return 0;
1802 }
1803
1804 static void
1805 qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
1806 {
1807         void *head;
1808         int i;
1809
1810         if (!qlcnic_mac_learn)
1811                 return;
1812
1813         spin_lock_init(&adapter->mac_learn_lock);
1814
1815         head = kcalloc(QLCNIC_LB_MAX_FILTERS, sizeof(struct hlist_head),
1816                                                                 GFP_KERNEL);
1817         if (!head)
1818                 return;
1819
1820         adapter->fhash.fmax = QLCNIC_LB_MAX_FILTERS;
1821         adapter->fhash.fhead = (struct hlist_head *)head;
1822
1823         for (i = 0; i < adapter->fhash.fmax; i++)
1824                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
1825 }
1826
1827 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
1828 {
1829         if (adapter->fhash.fmax && adapter->fhash.fhead)
1830                 kfree(adapter->fhash.fhead);
1831
1832         adapter->fhash.fhead = NULL;
1833         adapter->fhash.fmax = 0;
1834 }
1835
1836 static void qlcnic_change_filter(struct qlcnic_adapter *adapter,
1837                 u64 uaddr, u16 vlan_id, struct qlcnic_host_tx_ring *tx_ring)
1838 {
1839         struct cmd_desc_type0 *hwdesc;
1840         struct qlcnic_nic_req *req;
1841         struct qlcnic_mac_req *mac_req;
1842         u32 producer;
1843         u64 word;
1844
1845         producer = tx_ring->producer;
1846         hwdesc = &tx_ring->desc_head[tx_ring->producer];
1847
1848         req = (struct qlcnic_nic_req *)hwdesc;
1849         memset(req, 0, sizeof(struct qlcnic_nic_req));
1850         req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
1851
1852         word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16);
1853         req->req_hdr = cpu_to_le64(word);
1854
1855         mac_req = (struct qlcnic_mac_req *)&(req->words[0]);
1856         mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD;
1857         memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN);
1858
1859         req->words[1] = cpu_to_le64(vlan_id);
1860
1861         tx_ring->producer = get_next_index(producer, tx_ring->num_desc);
1862 }
1863
1864 #define QLCNIC_MAC_HASH(MAC)\
1865         ((((MAC) & 0x70000) >> 0x10) | (((MAC) & 0x70000000000ULL) >> 0x25))
1866
1867 static void
1868 qlcnic_send_filter(struct qlcnic_adapter *adapter,
1869                 struct qlcnic_host_tx_ring *tx_ring,
1870                 struct cmd_desc_type0 *first_desc,
1871                 struct sk_buff *skb)
1872 {
1873         struct ethhdr *phdr = (struct ethhdr *)(skb->data);
1874         struct qlcnic_filter *fil, *tmp_fil;
1875         struct hlist_node *tmp_hnode, *n;
1876         struct hlist_head *head;
1877         u64 src_addr = 0;
1878         u16 vlan_id = 0;
1879         u8 hindex;
1880
1881         if (!compare_ether_addr(phdr->h_source, adapter->mac_addr))
1882                 return;
1883
1884         if (adapter->fhash.fnum >= adapter->fhash.fmax)
1885                 return;
1886
1887         /* Only NPAR capable devices support vlan based learning*/
1888         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
1889                 vlan_id = first_desc->vlan_TCI;
1890         memcpy(&src_addr, phdr->h_source, ETH_ALEN);
1891         hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1);
1892         head = &(adapter->fhash.fhead[hindex]);
1893
1894         hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
1895                 if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) &&
1896                             tmp_fil->vlan_id == vlan_id) {
1897                         tmp_fil->ftime = jiffies;
1898                         return;
1899                 }
1900         }
1901
1902         fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC);
1903         if (!fil)
1904                 return;
1905
1906         qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring);
1907
1908         fil->ftime = jiffies;
1909         fil->vlan_id = vlan_id;
1910         memcpy(fil->faddr, &src_addr, ETH_ALEN);
1911         spin_lock(&adapter->mac_learn_lock);
1912         hlist_add_head(&(fil->fnode), head);
1913         adapter->fhash.fnum++;
1914         spin_unlock(&adapter->mac_learn_lock);
1915 }
1916
1917 static void
1918 qlcnic_tso_check(struct net_device *netdev,
1919                 struct qlcnic_host_tx_ring *tx_ring,
1920                 struct cmd_desc_type0 *first_desc,
1921                 struct sk_buff *skb)
1922 {
1923         u8 opcode = TX_ETHER_PKT;
1924         __be16 protocol = skb->protocol;
1925         u16 flags = 0;
1926         int copied, offset, copy_len, hdr_len = 0, tso = 0;
1927         struct cmd_desc_type0 *hwdesc;
1928         struct vlan_ethhdr *vh;
1929         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1930         u32 producer = tx_ring->producer;
1931         int vlan_oob = first_desc->flags_opcode & cpu_to_le16(FLAGS_VLAN_OOB);
1932
1933         if (*(skb->data) & BIT_0) {
1934                 flags |= BIT_0;
1935                 memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
1936         }
1937
1938         if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1939                         skb_shinfo(skb)->gso_size > 0) {
1940
1941                 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1942
1943                 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1944                 first_desc->total_hdr_length = hdr_len;
1945                 if (vlan_oob) {
1946                         first_desc->total_hdr_length += VLAN_HLEN;
1947                         first_desc->tcp_hdr_offset = VLAN_HLEN;
1948                         first_desc->ip_hdr_offset = VLAN_HLEN;
1949                         /* Only in case of TSO on vlan device */
1950                         flags |= FLAGS_VLAN_TAGGED;
1951                 }
1952
1953                 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1954                                 TX_TCP_LSO6 : TX_TCP_LSO;
1955                 tso = 1;
1956
1957         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1958                 u8 l4proto;
1959
1960                 if (protocol == cpu_to_be16(ETH_P_IP)) {
1961                         l4proto = ip_hdr(skb)->protocol;
1962
1963                         if (l4proto == IPPROTO_TCP)
1964                                 opcode = TX_TCP_PKT;
1965                         else if (l4proto == IPPROTO_UDP)
1966                                 opcode = TX_UDP_PKT;
1967                 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1968                         l4proto = ipv6_hdr(skb)->nexthdr;
1969
1970                         if (l4proto == IPPROTO_TCP)
1971                                 opcode = TX_TCPV6_PKT;
1972                         else if (l4proto == IPPROTO_UDP)
1973                                 opcode = TX_UDPV6_PKT;
1974                 }
1975         }
1976
1977         first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1978         first_desc->ip_hdr_offset += skb_network_offset(skb);
1979         qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
1980
1981         if (!tso)
1982                 return;
1983
1984         /* For LSO, we need to copy the MAC/IP/TCP headers into
1985          * the descriptor ring
1986          */
1987         copied = 0;
1988         offset = 2;
1989
1990         if (vlan_oob) {
1991                 /* Create a TSO vlan header template for firmware */
1992
1993                 hwdesc = &tx_ring->desc_head[producer];
1994                 tx_ring->cmd_buf_arr[producer].skb = NULL;
1995
1996                 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1997                                 hdr_len + VLAN_HLEN);
1998
1999                 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
2000                 skb_copy_from_linear_data(skb, vh, 12);
2001                 vh->h_vlan_proto = htons(ETH_P_8021Q);
2002                 vh->h_vlan_TCI = htons(first_desc->vlan_TCI);
2003                 skb_copy_from_linear_data_offset(skb, 12,
2004                                 (char *)vh + 16, copy_len - 16);
2005
2006                 copied = copy_len - VLAN_HLEN;
2007                 offset = 0;
2008
2009                 producer = get_next_index(producer, tx_ring->num_desc);
2010         }
2011
2012         while (copied < hdr_len) {
2013
2014                 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
2015                                 (hdr_len - copied));
2016
2017                 hwdesc = &tx_ring->desc_head[producer];
2018                 tx_ring->cmd_buf_arr[producer].skb = NULL;
2019
2020                 skb_copy_from_linear_data_offset(skb, copied,
2021                                  (char *)hwdesc + offset, copy_len);
2022
2023                 copied += copy_len;
2024                 offset = 0;
2025
2026                 producer = get_next_index(producer, tx_ring->num_desc);
2027         }
2028
2029         tx_ring->producer = producer;
2030         barrier();
2031         adapter->stats.lso_frames++;
2032 }
2033
2034 static int
2035 qlcnic_map_tx_skb(struct pci_dev *pdev,
2036                 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
2037 {
2038         struct qlcnic_skb_frag *nf;
2039         struct skb_frag_struct *frag;
2040         int i, nr_frags;
2041         dma_addr_t map;
2042
2043         nr_frags = skb_shinfo(skb)->nr_frags;
2044         nf = &pbuf->frag_array[0];
2045
2046         map = pci_map_single(pdev, skb->data,
2047                         skb_headlen(skb), PCI_DMA_TODEVICE);
2048         if (pci_dma_mapping_error(pdev, map))
2049                 goto out_err;
2050
2051         nf->dma = map;
2052         nf->length = skb_headlen(skb);
2053
2054         for (i = 0; i < nr_frags; i++) {
2055                 frag = &skb_shinfo(skb)->frags[i];
2056                 nf = &pbuf->frag_array[i+1];
2057
2058                 map = pci_map_page(pdev, frag->page, frag->page_offset,
2059                                 frag->size, PCI_DMA_TODEVICE);
2060                 if (pci_dma_mapping_error(pdev, map))
2061                         goto unwind;
2062
2063                 nf->dma = map;
2064                 nf->length = frag->size;
2065         }
2066
2067         return 0;
2068
2069 unwind:
2070         while (--i >= 0) {
2071                 nf = &pbuf->frag_array[i+1];
2072                 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2073         }
2074
2075         nf = &pbuf->frag_array[0];
2076         pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2077
2078 out_err:
2079         return -ENOMEM;
2080 }
2081
2082 static int
2083 qlcnic_check_tx_tagging(struct qlcnic_adapter *adapter,
2084                         struct sk_buff *skb,
2085                         struct cmd_desc_type0 *first_desc)
2086 {
2087         u8 opcode = 0;
2088         u16 flags = 0;
2089         __be16 protocol = skb->protocol;
2090         struct vlan_ethhdr *vh;
2091
2092         if (protocol == cpu_to_be16(ETH_P_8021Q)) {
2093                 vh = (struct vlan_ethhdr *)skb->data;
2094                 protocol = vh->h_vlan_encapsulated_proto;
2095                 flags = FLAGS_VLAN_TAGGED;
2096                 qlcnic_set_tx_vlan_tci(first_desc, ntohs(vh->h_vlan_TCI));
2097         } else if (vlan_tx_tag_present(skb)) {
2098                 flags = FLAGS_VLAN_OOB;
2099                 qlcnic_set_tx_vlan_tci(first_desc, vlan_tx_tag_get(skb));
2100         }
2101         if (unlikely(adapter->pvid)) {
2102                 if (first_desc->vlan_TCI &&
2103                                 !(adapter->flags & QLCNIC_TAGGING_ENABLED))
2104                         return -EIO;
2105                 if (first_desc->vlan_TCI &&
2106                                 (adapter->flags & QLCNIC_TAGGING_ENABLED))
2107                         goto set_flags;
2108
2109                 flags = FLAGS_VLAN_OOB;
2110                 qlcnic_set_tx_vlan_tci(first_desc, adapter->pvid);
2111         }
2112 set_flags:
2113         qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
2114         return 0;
2115 }
2116
2117 static inline void
2118 qlcnic_clear_cmddesc(u64 *desc)
2119 {
2120         desc[0] = 0ULL;
2121         desc[2] = 0ULL;
2122         desc[7] = 0ULL;
2123 }
2124
2125 netdev_tx_t
2126 qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2127 {
2128         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2129         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2130         struct qlcnic_cmd_buffer *pbuf;
2131         struct qlcnic_skb_frag *buffrag;
2132         struct cmd_desc_type0 *hwdesc, *first_desc;
2133         struct pci_dev *pdev;
2134         struct ethhdr *phdr;
2135         int i, k;
2136
2137         u32 producer;
2138         int frag_count, no_of_desc;
2139         u32 num_txd = tx_ring->num_desc;
2140
2141         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
2142                 netif_stop_queue(netdev);
2143                 return NETDEV_TX_BUSY;
2144         }
2145
2146         if (adapter->flags & QLCNIC_MACSPOOF) {
2147                 phdr = (struct ethhdr *)skb->data;
2148                 if (compare_ether_addr(phdr->h_source,
2149                                         adapter->mac_addr))
2150                         goto drop_packet;
2151         }
2152
2153         frag_count = skb_shinfo(skb)->nr_frags + 1;
2154
2155         /* 4 fragments per cmd des */
2156         no_of_desc = (frag_count + 3) >> 2;
2157
2158         if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2159                 netif_stop_queue(netdev);
2160                 smp_mb();
2161                 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
2162                         netif_start_queue(netdev);
2163                 else {
2164                         adapter->stats.xmit_off++;
2165                         return NETDEV_TX_BUSY;
2166                 }
2167         }
2168
2169         producer = tx_ring->producer;
2170         pbuf = &tx_ring->cmd_buf_arr[producer];
2171
2172         pdev = adapter->pdev;
2173
2174         first_desc = hwdesc = &tx_ring->desc_head[producer];
2175         qlcnic_clear_cmddesc((u64 *)hwdesc);
2176
2177         if (qlcnic_check_tx_tagging(adapter, skb, first_desc))
2178                 goto drop_packet;
2179
2180         if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
2181                 adapter->stats.tx_dma_map_error++;
2182                 goto drop_packet;
2183         }
2184
2185         pbuf->skb = skb;
2186         pbuf->frag_count = frag_count;
2187
2188         qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
2189         qlcnic_set_tx_port(first_desc, adapter->portnum);
2190
2191         for (i = 0; i < frag_count; i++) {
2192
2193                 k = i % 4;
2194
2195                 if ((k == 0) && (i > 0)) {
2196                         /* move to next desc.*/
2197                         producer = get_next_index(producer, num_txd);
2198                         hwdesc = &tx_ring->desc_head[producer];
2199                         qlcnic_clear_cmddesc((u64 *)hwdesc);
2200                         tx_ring->cmd_buf_arr[producer].skb = NULL;
2201                 }
2202
2203                 buffrag = &pbuf->frag_array[i];
2204
2205                 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2206                 switch (k) {
2207                 case 0:
2208                         hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2209                         break;
2210                 case 1:
2211                         hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2212                         break;
2213                 case 2:
2214                         hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2215                         break;
2216                 case 3:
2217                         hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2218                         break;
2219                 }
2220         }
2221
2222         tx_ring->producer = get_next_index(producer, num_txd);
2223
2224         qlcnic_tso_check(netdev, tx_ring, first_desc, skb);
2225
2226         if (qlcnic_mac_learn)
2227                 qlcnic_send_filter(adapter, tx_ring, first_desc, skb);
2228
2229         qlcnic_update_cmd_producer(adapter, tx_ring);
2230
2231         adapter->stats.txbytes += skb->len;
2232         adapter->stats.xmitcalled++;
2233
2234         return NETDEV_TX_OK;
2235
2236 drop_packet:
2237         adapter->stats.txdropped++;
2238         dev_kfree_skb_any(skb);
2239         return NETDEV_TX_OK;
2240 }
2241
2242 static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2243 {
2244         struct net_device *netdev = adapter->netdev;
2245         u32 temp, temp_state, temp_val;
2246         int rv = 0;
2247
2248         temp = QLCRD32(adapter, CRB_TEMP_STATE);
2249
2250         temp_state = qlcnic_get_temp_state(temp);
2251         temp_val = qlcnic_get_temp_val(temp);
2252
2253         if (temp_state == QLCNIC_TEMP_PANIC) {
2254                 dev_err(&netdev->dev,
2255                        "Device temperature %d degrees C exceeds"
2256                        " maximum allowed. Hardware has been shut down.\n",
2257                        temp_val);
2258                 rv = 1;
2259         } else if (temp_state == QLCNIC_TEMP_WARN) {
2260                 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
2261                         dev_err(&netdev->dev,
2262                                "Device temperature %d degrees C "
2263                                "exceeds operating range."
2264                                " Immediate action needed.\n",
2265                                temp_val);
2266                 }
2267         } else {
2268                 if (adapter->temp == QLCNIC_TEMP_WARN) {
2269                         dev_info(&netdev->dev,
2270                                "Device temperature is now %d degrees C"
2271                                " in normal range.\n", temp_val);
2272                 }
2273         }
2274         adapter->temp = temp_state;
2275         return rv;
2276 }
2277
2278 void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
2279 {
2280         struct net_device *netdev = adapter->netdev;
2281
2282         if (adapter->ahw.linkup && !linkup) {
2283                 netdev_info(netdev, "NIC Link is down\n");
2284                 adapter->ahw.linkup = 0;
2285                 if (netif_running(netdev)) {
2286                         netif_carrier_off(netdev);
2287                         netif_stop_queue(netdev);
2288                 }
2289         } else if (!adapter->ahw.linkup && linkup) {
2290                 netdev_info(netdev, "NIC Link is up\n");
2291                 adapter->ahw.linkup = 1;
2292                 if (netif_running(netdev)) {
2293                         netif_carrier_on(netdev);
2294                         netif_wake_queue(netdev);
2295                 }
2296         }
2297 }
2298
2299 static void qlcnic_tx_timeout(struct net_device *netdev)
2300 {
2301         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2302
2303         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2304                 return;
2305
2306         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2307
2308         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2309                 adapter->need_fw_reset = 1;
2310         else
2311                 adapter->reset_context = 1;
2312 }
2313
2314 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2315 {
2316         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2317         struct net_device_stats *stats = &netdev->stats;
2318
2319         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2320         stats->tx_packets = adapter->stats.xmitfinished;
2321         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2322         stats->tx_bytes = adapter->stats.txbytes;
2323         stats->rx_dropped = adapter->stats.rxdropped;
2324         stats->tx_dropped = adapter->stats.txdropped;
2325
2326         return stats;
2327 }
2328
2329 static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
2330 {
2331         u32 status;
2332
2333         status = readl(adapter->isr_int_vec);
2334
2335         if (!(status & adapter->int_vec_bit))
2336                 return IRQ_NONE;
2337
2338         /* check interrupt state machine, to be sure */
2339         status = readl(adapter->crb_int_state_reg);
2340         if (!ISR_LEGACY_INT_TRIGGERED(status))
2341                 return IRQ_NONE;
2342
2343         writel(0xffffffff, adapter->tgt_status_reg);
2344         /* read twice to ensure write is flushed */
2345         readl(adapter->isr_int_vec);
2346         readl(adapter->isr_int_vec);
2347
2348         return IRQ_HANDLED;
2349 }
2350
2351 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2352 {
2353         struct qlcnic_host_sds_ring *sds_ring = data;
2354         struct qlcnic_adapter *adapter = sds_ring->adapter;
2355
2356         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2357                 goto done;
2358         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2359                 writel(0xffffffff, adapter->tgt_status_reg);
2360                 goto done;
2361         }
2362
2363         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2364                 return IRQ_NONE;
2365
2366 done:
2367         adapter->diag_cnt++;
2368         qlcnic_enable_int(sds_ring);
2369         return IRQ_HANDLED;
2370 }
2371
2372 static irqreturn_t qlcnic_intr(int irq, void *data)
2373 {
2374         struct qlcnic_host_sds_ring *sds_ring = data;
2375         struct qlcnic_adapter *adapter = sds_ring->adapter;
2376
2377         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2378                 return IRQ_NONE;
2379
2380         napi_schedule(&sds_ring->napi);
2381
2382         return IRQ_HANDLED;
2383 }
2384
2385 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2386 {
2387         struct qlcnic_host_sds_ring *sds_ring = data;
2388         struct qlcnic_adapter *adapter = sds_ring->adapter;
2389
2390         /* clear interrupt */
2391         writel(0xffffffff, adapter->tgt_status_reg);
2392
2393         napi_schedule(&sds_ring->napi);
2394         return IRQ_HANDLED;
2395 }
2396
2397 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2398 {
2399         struct qlcnic_host_sds_ring *sds_ring = data;
2400
2401         napi_schedule(&sds_ring->napi);
2402         return IRQ_HANDLED;
2403 }
2404
2405 static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
2406 {
2407         u32 sw_consumer, hw_consumer;
2408         int count = 0, i;
2409         struct qlcnic_cmd_buffer *buffer;
2410         struct pci_dev *pdev = adapter->pdev;
2411         struct net_device *netdev = adapter->netdev;
2412         struct qlcnic_skb_frag *frag;
2413         int done;
2414         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2415
2416         if (!spin_trylock(&adapter->tx_clean_lock))
2417                 return 1;
2418
2419         sw_consumer = tx_ring->sw_consumer;
2420         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2421
2422         while (sw_consumer != hw_consumer) {
2423                 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
2424                 if (buffer->skb) {
2425                         frag = &buffer->frag_array[0];
2426                         pci_unmap_single(pdev, frag->dma, frag->length,
2427                                          PCI_DMA_TODEVICE);
2428                         frag->dma = 0ULL;
2429                         for (i = 1; i < buffer->frag_count; i++) {
2430                                 frag++;
2431                                 pci_unmap_page(pdev, frag->dma, frag->length,
2432                                                PCI_DMA_TODEVICE);
2433                                 frag->dma = 0ULL;
2434                         }
2435
2436                         adapter->stats.xmitfinished++;
2437                         dev_kfree_skb_any(buffer->skb);
2438                         buffer->skb = NULL;
2439                 }
2440
2441                 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
2442                 if (++count >= MAX_STATUS_HANDLE)
2443                         break;
2444         }
2445
2446         if (count && netif_running(netdev)) {
2447                 tx_ring->sw_consumer = sw_consumer;
2448
2449                 smp_mb();
2450
2451                 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
2452                         if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
2453                                 netif_wake_queue(netdev);
2454                                 adapter->stats.xmit_on++;
2455                         }
2456                 }
2457                 adapter->tx_timeo_cnt = 0;
2458         }
2459         /*
2460          * If everything is freed up to consumer then check if the ring is full
2461          * If the ring is full then check if more needs to be freed and
2462          * schedule the call back again.
2463          *
2464          * This happens when there are 2 CPUs. One could be freeing and the
2465          * other filling it. If the ring is full when we get out of here and
2466          * the card has already interrupted the host then the host can miss the
2467          * interrupt.
2468          *
2469          * There is still a possible race condition and the host could miss an
2470          * interrupt. The card has to take care of this.
2471          */
2472         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2473         done = (sw_consumer == hw_consumer);
2474         spin_unlock(&adapter->tx_clean_lock);
2475
2476         return done;
2477 }
2478
2479 static int qlcnic_poll(struct napi_struct *napi, int budget)
2480 {
2481         struct qlcnic_host_sds_ring *sds_ring =
2482                 container_of(napi, struct qlcnic_host_sds_ring, napi);
2483
2484         struct qlcnic_adapter *adapter = sds_ring->adapter;
2485
2486         int tx_complete;
2487         int work_done;
2488
2489         tx_complete = qlcnic_process_cmd_ring(adapter);
2490
2491         work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2492
2493         if ((work_done < budget) && tx_complete) {
2494                 napi_complete(&sds_ring->napi);
2495                 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2496                         qlcnic_enable_int(sds_ring);
2497         }
2498
2499         return work_done;
2500 }
2501
2502 static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
2503 {
2504         struct qlcnic_host_sds_ring *sds_ring =
2505                 container_of(napi, struct qlcnic_host_sds_ring, napi);
2506
2507         struct qlcnic_adapter *adapter = sds_ring->adapter;
2508         int work_done;
2509
2510         work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2511
2512         if (work_done < budget) {
2513                 napi_complete(&sds_ring->napi);
2514                 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2515                         qlcnic_enable_int(sds_ring);
2516         }
2517
2518         return work_done;
2519 }
2520
2521 #ifdef CONFIG_NET_POLL_CONTROLLER
2522 static void qlcnic_poll_controller(struct net_device *netdev)
2523 {
2524         int ring;
2525         struct qlcnic_host_sds_ring *sds_ring;
2526         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2527         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
2528
2529         disable_irq(adapter->irq);
2530         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2531                 sds_ring = &recv_ctx->sds_rings[ring];
2532                 qlcnic_intr(adapter->irq, sds_ring);
2533         }
2534         enable_irq(adapter->irq);
2535 }
2536 #endif
2537
2538 static void
2539 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2540 {
2541         u32 val;
2542
2543         val = adapter->portnum & 0xf;
2544         val |= encoding << 7;
2545         val |= (jiffies - adapter->dev_rst_time) << 8;
2546
2547         QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2548         adapter->dev_rst_time = jiffies;
2549 }
2550
2551 static int
2552 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2553 {
2554         u32  val;
2555
2556         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2557                         state != QLCNIC_DEV_NEED_QUISCENT);
2558
2559         if (qlcnic_api_lock(adapter))
2560                 return -EIO;
2561
2562         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2563
2564         if (state == QLCNIC_DEV_NEED_RESET)
2565                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2566         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2567                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2568
2569         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2570
2571         qlcnic_api_unlock(adapter);
2572
2573         return 0;
2574 }
2575
2576 static int
2577 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2578 {
2579         u32  val;
2580
2581         if (qlcnic_api_lock(adapter))
2582                 return -EBUSY;
2583
2584         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2585         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2586         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2587
2588         qlcnic_api_unlock(adapter);
2589
2590         return 0;
2591 }
2592
2593 static void
2594 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2595 {
2596         u32  val;
2597
2598         if (qlcnic_api_lock(adapter))
2599                 goto err;
2600
2601         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2602         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2603         QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2604
2605         if (failed) {
2606                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
2607                 dev_info(&adapter->pdev->dev,
2608                                 "Device state set to Failed. Please Reboot\n");
2609         } else if (!(val & 0x11111111))
2610                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2611
2612         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2613         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2614         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2615
2616         qlcnic_api_unlock(adapter);
2617 err:
2618         adapter->fw_fail_cnt = 0;
2619         clear_bit(__QLCNIC_START_FW, &adapter->state);
2620         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2621 }
2622
2623 /* Grab api lock, before checking state */
2624 static int
2625 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2626 {
2627         int act, state;
2628
2629         state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2630         act = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2631
2632         if (((state & 0x11111111) == (act & 0x11111111)) ||
2633                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2634                 return 0;
2635         else
2636                 return 1;
2637 }
2638
2639 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2640 {
2641         u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2642
2643         if (val != QLCNIC_DRV_IDC_VER) {
2644                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2645                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2646         }
2647
2648         return 0;
2649 }
2650
2651 static int
2652 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2653 {
2654         u32 val, prev_state;
2655         u8 dev_init_timeo = adapter->dev_init_timeo;
2656         u8 portnum = adapter->portnum;
2657         u8 ret;
2658
2659         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2660                 return 1;
2661
2662         if (qlcnic_api_lock(adapter))
2663                 return -1;
2664
2665         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2666         if (!(val & (1 << (portnum * 4)))) {
2667                 QLC_DEV_SET_REF_CNT(val, portnum);
2668                 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2669         }
2670
2671         prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2672         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2673
2674         switch (prev_state) {
2675         case QLCNIC_DEV_COLD:
2676                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
2677                 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
2678                 qlcnic_idc_debug_info(adapter, 0);
2679                 qlcnic_api_unlock(adapter);
2680                 return 1;
2681
2682         case QLCNIC_DEV_READY:
2683                 ret = qlcnic_check_idc_ver(adapter);
2684                 qlcnic_api_unlock(adapter);
2685                 return ret;
2686
2687         case QLCNIC_DEV_NEED_RESET:
2688                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2689                 QLC_DEV_SET_RST_RDY(val, portnum);
2690                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2691                 break;
2692
2693         case QLCNIC_DEV_NEED_QUISCENT:
2694                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2695                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2696                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2697                 break;
2698
2699         case QLCNIC_DEV_FAILED:
2700                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2701                 qlcnic_api_unlock(adapter);
2702                 return -1;
2703
2704         case QLCNIC_DEV_INITIALIZING:
2705         case QLCNIC_DEV_QUISCENT:
2706                 break;
2707         }
2708
2709         qlcnic_api_unlock(adapter);
2710
2711         do {
2712                 msleep(1000);
2713                 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2714
2715                 if (prev_state == QLCNIC_DEV_QUISCENT)
2716                         continue;
2717         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2718
2719         if (!dev_init_timeo) {
2720                 dev_err(&adapter->pdev->dev,
2721                         "Waiting for device to initialize timeout\n");
2722                 return -1;
2723         }
2724
2725         if (qlcnic_api_lock(adapter))
2726                 return -1;
2727
2728         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2729         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2730         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2731
2732         ret = qlcnic_check_idc_ver(adapter);
2733         qlcnic_api_unlock(adapter);
2734
2735         return ret;
2736 }
2737
2738 static void
2739 qlcnic_fwinit_work(struct work_struct *work)
2740 {
2741         struct qlcnic_adapter *adapter = container_of(work,
2742                         struct qlcnic_adapter, fw_work.work);
2743         u32 dev_state = 0xf;
2744
2745         if (qlcnic_api_lock(adapter))
2746                 goto err_ret;
2747
2748         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2749         if (dev_state ==  QLCNIC_DEV_QUISCENT) {
2750                 qlcnic_api_unlock(adapter);
2751                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2752                                                 FW_POLL_DELAY * 2);
2753                 return;
2754         }
2755
2756         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
2757                 qlcnic_api_unlock(adapter);
2758                 goto wait_npar;
2759         }
2760
2761         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2762                 dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2763                                         adapter->reset_ack_timeo);
2764                 goto skip_ack_check;
2765         }
2766
2767         if (!qlcnic_check_drv_state(adapter)) {
2768 skip_ack_check:
2769                 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2770
2771                 if (dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2772                         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2773                                                 QLCNIC_DEV_QUISCENT);
2774                         qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2775                                                 FW_POLL_DELAY * 2);
2776                         QLCDB(adapter, DRV, "Quiscing the driver\n");
2777                         qlcnic_idc_debug_info(adapter, 0);
2778
2779                         qlcnic_api_unlock(adapter);
2780                         return;
2781                 }
2782
2783                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2784                         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2785                                                 QLCNIC_DEV_INITIALIZING);
2786                         set_bit(__QLCNIC_START_FW, &adapter->state);
2787                         QLCDB(adapter, DRV, "Restarting fw\n");
2788                         qlcnic_idc_debug_info(adapter, 0);
2789                 }
2790
2791                 qlcnic_api_unlock(adapter);
2792
2793                 if (!adapter->nic_ops->start_firmware(adapter)) {
2794                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2795                         adapter->fw_wait_cnt = 0;
2796                         return;
2797                 }
2798                 goto err_ret;
2799         }
2800
2801         qlcnic_api_unlock(adapter);
2802
2803 wait_npar:
2804         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2805         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2806
2807         switch (dev_state) {
2808         case QLCNIC_DEV_READY:
2809                 if (!adapter->nic_ops->start_firmware(adapter)) {
2810                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2811                         adapter->fw_wait_cnt = 0;
2812                         return;
2813                 }
2814         case QLCNIC_DEV_FAILED:
2815                 break;
2816         default:
2817                 qlcnic_schedule_work(adapter,
2818                         qlcnic_fwinit_work, FW_POLL_DELAY);
2819                 return;
2820         }
2821
2822 err_ret:
2823         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2824                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2825         netif_device_attach(adapter->netdev);
2826         qlcnic_clr_all_drv_state(adapter, 0);
2827 }
2828
2829 static void
2830 qlcnic_detach_work(struct work_struct *work)
2831 {
2832         struct qlcnic_adapter *adapter = container_of(work,
2833                         struct qlcnic_adapter, fw_work.work);
2834         struct net_device *netdev = adapter->netdev;
2835         u32 status;
2836
2837         netif_device_detach(netdev);
2838
2839         qlcnic_down(adapter, netdev);
2840
2841         status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2842
2843         if (status & QLCNIC_RCODE_FATAL_ERROR)
2844                 goto err_ret;
2845
2846         if (adapter->temp == QLCNIC_TEMP_PANIC)
2847                 goto err_ret;
2848
2849         if (qlcnic_set_drv_state(adapter, adapter->dev_state))
2850                 goto err_ret;
2851
2852         adapter->fw_wait_cnt = 0;
2853
2854         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2855
2856         return;
2857
2858 err_ret:
2859         dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n",
2860                         status, adapter->temp);
2861         netif_device_attach(netdev);
2862         qlcnic_clr_all_drv_state(adapter, 1);
2863 }
2864
2865 /*Transit NPAR state to NON Operational */
2866 static void
2867 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2868 {
2869         u32 state;
2870
2871         state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2872         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2873                 return;
2874
2875         if (qlcnic_api_lock(adapter))
2876                 return;
2877         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2878         qlcnic_api_unlock(adapter);
2879 }
2880
2881 /*Transit to RESET state from READY state only */
2882 static void
2883 qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2884 {
2885         u32 state;
2886
2887         adapter->need_fw_reset = 1;
2888         if (qlcnic_api_lock(adapter))
2889                 return;
2890
2891         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2892
2893         if (state == QLCNIC_DEV_READY) {
2894                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
2895                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2896                 qlcnic_idc_debug_info(adapter, 0);
2897         }
2898
2899         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2900         qlcnic_api_unlock(adapter);
2901 }
2902
2903 /* Transit to NPAR READY state from NPAR NOT READY state */
2904 static void
2905 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2906 {
2907         if (qlcnic_api_lock(adapter))
2908                 return;
2909
2910         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER);
2911         QLCDB(adapter, DRV, "NPAR operational state set\n");
2912
2913         qlcnic_api_unlock(adapter);
2914 }
2915
2916 static void
2917 qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2918                 work_func_t func, int delay)
2919 {
2920         if (test_bit(__QLCNIC_AER, &adapter->state))
2921                 return;
2922
2923         INIT_DELAYED_WORK(&adapter->fw_work, func);
2924         schedule_delayed_work(&adapter->fw_work, round_jiffies_relative(delay));
2925 }
2926
2927 static void
2928 qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
2929 {
2930         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2931                 msleep(10);
2932
2933         cancel_delayed_work_sync(&adapter->fw_work);
2934 }
2935
2936 static void
2937 qlcnic_attach_work(struct work_struct *work)
2938 {
2939         struct qlcnic_adapter *adapter = container_of(work,
2940                                 struct qlcnic_adapter, fw_work.work);
2941         struct net_device *netdev = adapter->netdev;
2942         u32 npar_state;
2943
2944         if (adapter->op_mode != QLCNIC_MGMT_FUNC) {
2945                 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2946                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2947                         qlcnic_clr_all_drv_state(adapter, 0);
2948                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2949                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
2950                                                         FW_POLL_DELAY);
2951                 else
2952                         goto attach;
2953                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2954                 return;
2955         }
2956 attach:
2957         if (netif_running(netdev)) {
2958                 if (qlcnic_up(adapter, netdev))
2959                         goto done;
2960
2961                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2962         }
2963
2964 done:
2965         netif_device_attach(netdev);
2966         adapter->fw_fail_cnt = 0;
2967         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2968
2969         if (!qlcnic_clr_drv_state(adapter))
2970                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2971                                                         FW_POLL_DELAY);
2972 }
2973
2974 static int
2975 qlcnic_check_health(struct qlcnic_adapter *adapter)
2976 {
2977         u32 state = 0, heartbeat;
2978         struct net_device *netdev = adapter->netdev;
2979
2980         if (qlcnic_check_temp(adapter))
2981                 goto detach;
2982
2983         if (adapter->need_fw_reset)
2984                 qlcnic_dev_request_reset(adapter);
2985
2986         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2987         if (state == QLCNIC_DEV_NEED_RESET ||
2988             state == QLCNIC_DEV_NEED_QUISCENT) {
2989                 qlcnic_set_npar_non_operational(adapter);
2990                 adapter->need_fw_reset = 1;
2991         }
2992
2993         heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2994         if (heartbeat != adapter->heartbeat) {
2995                 adapter->heartbeat = heartbeat;
2996                 adapter->fw_fail_cnt = 0;
2997                 if (adapter->need_fw_reset)
2998                         goto detach;
2999
3000                 if (adapter->reset_context &&
3001                     auto_fw_reset == AUTO_FW_RESET_ENABLED) {
3002                         qlcnic_reset_hw_context(adapter);
3003                         adapter->netdev->trans_start = jiffies;
3004                 }
3005
3006                 return 0;
3007         }
3008
3009         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3010                 return 0;
3011
3012         qlcnic_dev_request_reset(adapter);
3013
3014         if ((auto_fw_reset == AUTO_FW_RESET_ENABLED))
3015                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3016
3017         dev_info(&netdev->dev, "firmware hang detected\n");
3018
3019 detach:
3020         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3021                 QLCNIC_DEV_NEED_RESET;
3022
3023         if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
3024                 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
3025
3026                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3027                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3028         }
3029
3030         return 1;
3031 }
3032
3033 static void
3034 qlcnic_fw_poll_work(struct work_struct *work)
3035 {
3036         struct qlcnic_adapter *adapter = container_of(work,
3037                                 struct qlcnic_adapter, fw_work.work);
3038
3039         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3040                 goto reschedule;
3041
3042
3043         if (qlcnic_check_health(adapter))
3044                 return;
3045
3046         if (adapter->fhash.fnum)
3047                 qlcnic_prune_lb_filters(adapter);
3048
3049 reschedule:
3050         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3051 }
3052
3053 static int qlcnic_is_first_func(struct pci_dev *pdev)
3054 {
3055         struct pci_dev *oth_pdev;
3056         int val = pdev->devfn;
3057
3058         while (val-- > 0) {
3059                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3060                         (pdev->bus), pdev->bus->number,
3061                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3062                 if (!oth_pdev)
3063                         continue;
3064
3065                 if (oth_pdev->current_state != PCI_D3cold) {
3066                         pci_dev_put(oth_pdev);
3067                         return 0;
3068                 }
3069                 pci_dev_put(oth_pdev);
3070         }
3071         return 1;
3072 }
3073
3074 static int qlcnic_attach_func(struct pci_dev *pdev)
3075 {
3076         int err, first_func;
3077         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3078         struct net_device *netdev = adapter->netdev;
3079
3080         pdev->error_state = pci_channel_io_normal;
3081
3082         err = pci_enable_device(pdev);
3083         if (err)
3084                 return err;
3085
3086         pci_set_power_state(pdev, PCI_D0);
3087         pci_set_master(pdev);
3088         pci_restore_state(pdev);
3089
3090         first_func = qlcnic_is_first_func(pdev);
3091
3092         if (qlcnic_api_lock(adapter))
3093                 return -EINVAL;
3094
3095         if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3096                 adapter->need_fw_reset = 1;
3097                 set_bit(__QLCNIC_START_FW, &adapter->state);
3098                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
3099                 QLCDB(adapter, DRV, "Restarting fw\n");
3100         }
3101         qlcnic_api_unlock(adapter);
3102
3103         err = adapter->nic_ops->start_firmware(adapter);
3104         if (err)
3105                 return err;
3106
3107         qlcnic_clr_drv_state(adapter);
3108         qlcnic_setup_intr(adapter);
3109
3110         if (netif_running(netdev)) {
3111                 err = qlcnic_attach(adapter);
3112                 if (err) {
3113                         qlcnic_clr_all_drv_state(adapter, 1);
3114                         clear_bit(__QLCNIC_AER, &adapter->state);
3115                         netif_device_attach(netdev);
3116                         return err;
3117                 }
3118
3119                 err = qlcnic_up(adapter, netdev);
3120                 if (err)
3121                         goto done;
3122
3123                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3124         }
3125  done:
3126         netif_device_attach(netdev);
3127         return err;
3128 }
3129
3130 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3131                                                 pci_channel_state_t state)
3132 {
3133         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3134         struct net_device *netdev = adapter->netdev;
3135
3136         if (state == pci_channel_io_perm_failure)
3137                 return PCI_ERS_RESULT_DISCONNECT;
3138
3139         if (state == pci_channel_io_normal)
3140                 return PCI_ERS_RESULT_RECOVERED;
3141
3142         set_bit(__QLCNIC_AER, &adapter->state);
3143         netif_device_detach(netdev);
3144
3145         cancel_delayed_work_sync(&adapter->fw_work);
3146
3147         if (netif_running(netdev))
3148                 qlcnic_down(adapter, netdev);
3149
3150         qlcnic_detach(adapter);
3151         qlcnic_teardown_intr(adapter);
3152
3153         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3154
3155         pci_save_state(pdev);
3156         pci_disable_device(pdev);
3157
3158         return PCI_ERS_RESULT_NEED_RESET;
3159 }
3160
3161 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3162 {
3163         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3164                                 PCI_ERS_RESULT_RECOVERED;
3165 }
3166
3167 static void qlcnic_io_resume(struct pci_dev *pdev)
3168 {
3169         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3170
3171         pci_cleanup_aer_uncorrect_error_status(pdev);
3172
3173         if (QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) == QLCNIC_DEV_READY &&
3174             test_and_clear_bit(__QLCNIC_AER, &adapter->state))
3175                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3176                                                 FW_POLL_DELAY);
3177 }
3178
3179 static int
3180 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3181 {
3182         int err;
3183
3184         err = qlcnic_can_start_firmware(adapter);
3185         if (err)
3186                 return err;
3187
3188         err = qlcnic_check_npar_opertional(adapter);
3189         if (err)
3190                 return err;
3191
3192         err = qlcnic_initialize_nic(adapter);
3193         if (err)
3194                 return err;
3195
3196         qlcnic_check_options(adapter);
3197
3198         err = qlcnic_set_eswitch_port_config(adapter);
3199         if (err)
3200                 return err;
3201
3202         adapter->need_fw_reset = 0;
3203
3204         return err;
3205 }
3206
3207 static int
3208 qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
3209 {
3210         return -EOPNOTSUPP;
3211 }
3212
3213 static int
3214 qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
3215 {
3216         return -EOPNOTSUPP;
3217 }
3218
3219 static ssize_t
3220 qlcnic_store_bridged_mode(struct device *dev,
3221                 struct device_attribute *attr, const char *buf, size_t len)
3222 {
3223         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3224         unsigned long new;
3225         int ret = -EINVAL;
3226
3227         if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
3228                 goto err_out;
3229
3230         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3231                 goto err_out;
3232
3233         if (strict_strtoul(buf, 2, &new))
3234                 goto err_out;
3235
3236         if (!adapter->nic_ops->config_bridged_mode(adapter, !!new))
3237                 ret = len;
3238
3239 err_out:
3240         return ret;
3241 }
3242
3243 static ssize_t
3244 qlcnic_show_bridged_mode(struct device *dev,
3245                 struct device_attribute *attr, char *buf)
3246 {
3247         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3248         int bridged_mode = 0;
3249
3250         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3251                 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
3252
3253         return sprintf(buf, "%d\n", bridged_mode);
3254 }
3255
3256 static struct device_attribute dev_attr_bridged_mode = {
3257        .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
3258        .show = qlcnic_show_bridged_mode,
3259        .store = qlcnic_store_bridged_mode,
3260 };
3261
3262 static ssize_t
3263 qlcnic_store_diag_mode(struct device *dev,
3264                 struct device_attribute *attr, const char *buf, size_t len)
3265 {
3266         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3267         unsigned long new;
3268
3269         if (strict_strtoul(buf, 2, &new))
3270                 return -EINVAL;
3271
3272         if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
3273                 adapter->flags ^= QLCNIC_DIAG_ENABLED;
3274
3275         return len;
3276 }
3277
3278 static ssize_t
3279 qlcnic_show_diag_mode(struct device *dev,
3280                 struct device_attribute *attr, char *buf)
3281 {
3282         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3283
3284         return sprintf(buf, "%d\n",
3285                         !!(adapter->flags & QLCNIC_DIAG_ENABLED));
3286 }
3287
3288 static struct device_attribute dev_attr_diag_mode = {
3289         .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
3290         .show = qlcnic_show_diag_mode,
3291         .store = qlcnic_store_diag_mode,
3292 };
3293
3294 static int
3295 qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
3296                 loff_t offset, size_t size)
3297 {
3298         size_t crb_size = 4;
3299
3300         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3301                 return -EIO;
3302
3303         if (offset < QLCNIC_PCI_CRBSPACE) {
3304                 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
3305                                         QLCNIC_PCI_CAMQM_END))
3306                         crb_size = 8;
3307                 else
3308                         return -EINVAL;
3309         }
3310
3311         if ((size != crb_size) || (offset & (crb_size-1)))
3312                 return  -EINVAL;
3313
3314         return 0;
3315 }
3316
3317 static ssize_t
3318 qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
3319                 struct bin_attribute *attr,
3320                 char *buf, loff_t offset, size_t size)
3321 {
3322         struct device *dev = container_of(kobj, struct device, kobj);
3323         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3324         u32 data;
3325         u64 qmdata;
3326         int ret;
3327
3328         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3329         if (ret != 0)
3330                 return ret;
3331
3332         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3333                 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
3334                 memcpy(buf, &qmdata, size);
3335         } else {
3336                 data = QLCRD32(adapter, offset);
3337                 memcpy(buf, &data, size);
3338         }
3339         return size;
3340 }
3341
3342 static ssize_t
3343 qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
3344                 struct bin_attribute *attr,
3345                 char *buf, loff_t offset, size_t size)
3346 {
3347         struct device *dev = container_of(kobj, struct device, kobj);
3348         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3349         u32 data;
3350         u64 qmdata;
3351         int ret;
3352
3353         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3354         if (ret != 0)
3355                 return ret;
3356
3357         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3358                 memcpy(&qmdata, buf, size);
3359                 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
3360         } else {
3361                 memcpy(&data, buf, size);
3362                 QLCWR32(adapter, offset, data);
3363         }
3364         return size;
3365 }
3366
3367 static int
3368 qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
3369                 loff_t offset, size_t size)
3370 {
3371         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3372                 return -EIO;
3373
3374         if ((size != 8) || (offset & 0x7))
3375                 return  -EIO;
3376
3377         return 0;
3378 }
3379
3380 static ssize_t
3381 qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
3382                 struct bin_attribute *attr,
3383                 char *buf, loff_t offset, size_t size)
3384 {
3385         struct device *dev = container_of(kobj, struct device, kobj);
3386         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3387         u64 data;
3388         int ret;
3389
3390         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3391         if (ret != 0)
3392                 return ret;
3393
3394         if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
3395                 return -EIO;
3396
3397         memcpy(buf, &data, size);
3398
3399         return size;
3400 }
3401
3402 static ssize_t
3403 qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
3404                 struct bin_attribute *attr,
3405                 char *buf, loff_t offset, size_t size)
3406 {
3407         struct device *dev = container_of(kobj, struct device, kobj);
3408         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3409         u64 data;
3410         int ret;
3411
3412         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3413         if (ret != 0)
3414                 return ret;
3415
3416         memcpy(&data, buf, size);
3417
3418         if (qlcnic_pci_mem_write_2M(adapter, offset, data))
3419                 return -EIO;
3420
3421         return size;
3422 }
3423
3424
3425 static struct bin_attribute bin_attr_crb = {
3426         .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3427         .size = 0,
3428         .read = qlcnic_sysfs_read_crb,
3429         .write = qlcnic_sysfs_write_crb,
3430 };
3431
3432 static struct bin_attribute bin_attr_mem = {
3433         .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3434         .size = 0,
3435         .read = qlcnic_sysfs_read_mem,
3436         .write = qlcnic_sysfs_write_mem,
3437 };
3438
3439 static int
3440 validate_pm_config(struct qlcnic_adapter *adapter,
3441                         struct qlcnic_pm_func_cfg *pm_cfg, int count)
3442 {
3443
3444         u8 src_pci_func, s_esw_id, d_esw_id;
3445         u8 dest_pci_func;
3446         int i;
3447
3448         for (i = 0; i < count; i++) {
3449                 src_pci_func = pm_cfg[i].pci_func;
3450                 dest_pci_func = pm_cfg[i].dest_npar;
3451                 if (src_pci_func >= QLCNIC_MAX_PCI_FUNC
3452                                 || dest_pci_func >= QLCNIC_MAX_PCI_FUNC)
3453                         return QL_STATUS_INVALID_PARAM;
3454
3455                 if (adapter->npars[src_pci_func].type != QLCNIC_TYPE_NIC)
3456                         return QL_STATUS_INVALID_PARAM;
3457
3458                 if (adapter->npars[dest_pci_func].type != QLCNIC_TYPE_NIC)
3459                         return QL_STATUS_INVALID_PARAM;
3460
3461                 s_esw_id = adapter->npars[src_pci_func].phy_port;
3462                 d_esw_id = adapter->npars[dest_pci_func].phy_port;
3463
3464                 if (s_esw_id != d_esw_id)
3465                         return QL_STATUS_INVALID_PARAM;
3466
3467         }
3468         return 0;
3469
3470 }
3471
3472 static ssize_t
3473 qlcnic_sysfs_write_pm_config(struct file *filp, struct kobject *kobj,
3474         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3475 {
3476         struct device *dev = container_of(kobj, struct device, kobj);
3477         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3478         struct qlcnic_pm_func_cfg *pm_cfg;
3479         u32 id, action, pci_func;
3480         int count, rem, i, ret;
3481
3482         count   = size / sizeof(struct qlcnic_pm_func_cfg);
3483         rem     = size % sizeof(struct qlcnic_pm_func_cfg);
3484         if (rem)
3485                 return QL_STATUS_INVALID_PARAM;
3486
3487         pm_cfg = (struct qlcnic_pm_func_cfg *) buf;
3488
3489         ret = validate_pm_config(adapter, pm_cfg, count);
3490         if (ret)
3491                 return ret;
3492         for (i = 0; i < count; i++) {
3493                 pci_func = pm_cfg[i].pci_func;
3494                 action = !!pm_cfg[i].action;
3495                 id = adapter->npars[pci_func].phy_port;
3496                 ret = qlcnic_config_port_mirroring(adapter, id,
3497                                                 action, pci_func);
3498                 if (ret)
3499                         return ret;
3500         }
3501
3502         for (i = 0; i < count; i++) {
3503                 pci_func = pm_cfg[i].pci_func;
3504                 id = adapter->npars[pci_func].phy_port;
3505                 adapter->npars[pci_func].enable_pm = !!pm_cfg[i].action;
3506                 adapter->npars[pci_func].dest_npar = id;
3507         }
3508         return size;
3509 }
3510
3511 static ssize_t
3512 qlcnic_sysfs_read_pm_config(struct file *filp, struct kobject *kobj,
3513         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3514 {
3515         struct device *dev = container_of(kobj, struct device, kobj);
3516         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3517         struct qlcnic_pm_func_cfg pm_cfg[QLCNIC_MAX_PCI_FUNC];
3518         int i;
3519
3520         if (size != sizeof(pm_cfg))
3521                 return QL_STATUS_INVALID_PARAM;
3522
3523         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3524                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3525                         continue;
3526                 pm_cfg[i].action = adapter->npars[i].enable_pm;
3527                 pm_cfg[i].dest_npar = 0;
3528                 pm_cfg[i].pci_func = i;
3529         }
3530         memcpy(buf, &pm_cfg, size);
3531
3532         return size;
3533 }
3534
3535 static int
3536 validate_esw_config(struct qlcnic_adapter *adapter,
3537         struct qlcnic_esw_func_cfg *esw_cfg, int count)
3538 {
3539         u32 op_mode;
3540         u8 pci_func;
3541         int i;
3542
3543         op_mode = readl(adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE);
3544
3545         for (i = 0; i < count; i++) {
3546                 pci_func = esw_cfg[i].pci_func;
3547                 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3548                         return QL_STATUS_INVALID_PARAM;
3549
3550                 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3551                         if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3552                                 return QL_STATUS_INVALID_PARAM;
3553
3554                 switch (esw_cfg[i].op_mode) {
3555                 case QLCNIC_PORT_DEFAULTS:
3556                         if (QLC_DEV_GET_DRV(op_mode, pci_func) !=
3557                                                 QLCNIC_NON_PRIV_FUNC) {
3558                                 esw_cfg[i].mac_anti_spoof = 0;
3559                                 esw_cfg[i].mac_override = 1;
3560                         }
3561                         break;
3562                 case QLCNIC_ADD_VLAN:
3563                         if (!IS_VALID_VLAN(esw_cfg[i].vlan_id))
3564                                 return QL_STATUS_INVALID_PARAM;
3565                         if (!esw_cfg[i].op_type)
3566                                 return QL_STATUS_INVALID_PARAM;
3567                         break;
3568                 case QLCNIC_DEL_VLAN:
3569                         if (!esw_cfg[i].op_type)
3570                                 return QL_STATUS_INVALID_PARAM;
3571                         break;
3572                 default:
3573                         return QL_STATUS_INVALID_PARAM;
3574                 }
3575         }
3576         return 0;
3577 }
3578
3579 static ssize_t
3580 qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj,
3581         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3582 {
3583         struct device *dev = container_of(kobj, struct device, kobj);
3584         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3585         struct qlcnic_esw_func_cfg *esw_cfg;
3586         struct qlcnic_npar_info *npar;
3587         int count, rem, i, ret;
3588         u8 pci_func, op_mode = 0;
3589
3590         count   = size / sizeof(struct qlcnic_esw_func_cfg);
3591         rem     = size % sizeof(struct qlcnic_esw_func_cfg);
3592         if (rem)
3593                 return QL_STATUS_INVALID_PARAM;
3594
3595         esw_cfg = (struct qlcnic_esw_func_cfg *) buf;
3596         ret = validate_esw_config(adapter, esw_cfg, count);
3597         if (ret)
3598                 return ret;
3599
3600         for (i = 0; i < count; i++) {
3601                 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3602                         if (qlcnic_config_switch_port(adapter, &esw_cfg[i]))
3603                                 return QL_STATUS_INVALID_PARAM;
3604
3605                 if (adapter->ahw.pci_func != esw_cfg[i].pci_func)
3606                         continue;
3607
3608                 op_mode = esw_cfg[i].op_mode;
3609                 qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]);
3610                 esw_cfg[i].op_mode = op_mode;
3611                 esw_cfg[i].pci_func = adapter->ahw.pci_func;
3612
3613                 switch (esw_cfg[i].op_mode) {
3614                 case QLCNIC_PORT_DEFAULTS:
3615                         qlcnic_set_eswitch_port_features(adapter, &esw_cfg[i]);
3616                         break;
3617                 case QLCNIC_ADD_VLAN:
3618                         qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3619                         break;
3620                 case QLCNIC_DEL_VLAN:
3621                         esw_cfg[i].vlan_id = 0;
3622                         qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3623                         break;
3624                 }
3625         }
3626
3627         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3628                 goto out;
3629
3630         for (i = 0; i < count; i++) {
3631                 pci_func = esw_cfg[i].pci_func;
3632                 npar = &adapter->npars[pci_func];
3633                 switch (esw_cfg[i].op_mode) {
3634                 case QLCNIC_PORT_DEFAULTS:
3635                         npar->promisc_mode = esw_cfg[i].promisc_mode;
3636                         npar->mac_override = esw_cfg[i].mac_override;
3637                         npar->offload_flags = esw_cfg[i].offload_flags;
3638                         npar->mac_anti_spoof = esw_cfg[i].mac_anti_spoof;
3639                         npar->discard_tagged = esw_cfg[i].discard_tagged;
3640                         break;
3641                 case QLCNIC_ADD_VLAN:
3642                         npar->pvid = esw_cfg[i].vlan_id;
3643                         break;
3644                 case QLCNIC_DEL_VLAN:
3645                         npar->pvid = 0;
3646                         break;
3647                 }
3648         }
3649 out:
3650         return size;
3651 }
3652
3653 static ssize_t
3654 qlcnic_sysfs_read_esw_config(struct file *file, struct kobject *kobj,
3655         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3656 {
3657         struct device *dev = container_of(kobj, struct device, kobj);
3658         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3659         struct qlcnic_esw_func_cfg esw_cfg[QLCNIC_MAX_PCI_FUNC];
3660         u8 i;
3661
3662         if (size != sizeof(esw_cfg))
3663                 return QL_STATUS_INVALID_PARAM;
3664
3665         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3666                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3667                         continue;
3668                 esw_cfg[i].pci_func = i;
3669                 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]))
3670                         return QL_STATUS_INVALID_PARAM;
3671         }
3672         memcpy(buf, &esw_cfg, size);
3673
3674         return size;
3675 }
3676
3677 static int
3678 validate_npar_config(struct qlcnic_adapter *adapter,
3679                                 struct qlcnic_npar_func_cfg *np_cfg, int count)
3680 {
3681         u8 pci_func, i;
3682
3683         for (i = 0; i < count; i++) {
3684                 pci_func = np_cfg[i].pci_func;
3685                 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3686                         return QL_STATUS_INVALID_PARAM;
3687
3688                 if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3689                         return QL_STATUS_INVALID_PARAM;
3690
3691                 if (!IS_VALID_BW(np_cfg[i].min_bw)
3692                                 || !IS_VALID_BW(np_cfg[i].max_bw)
3693                                 || !IS_VALID_RX_QUEUES(np_cfg[i].max_rx_queues)
3694                                 || !IS_VALID_TX_QUEUES(np_cfg[i].max_tx_queues))
3695                         return QL_STATUS_INVALID_PARAM;
3696         }
3697         return 0;
3698 }
3699
3700 static ssize_t
3701 qlcnic_sysfs_write_npar_config(struct file *file, struct kobject *kobj,
3702         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3703 {
3704         struct device *dev = container_of(kobj, struct device, kobj);
3705         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3706         struct qlcnic_info nic_info;
3707         struct qlcnic_npar_func_cfg *np_cfg;
3708         int i, count, rem, ret;
3709         u8 pci_func;
3710
3711         count   = size / sizeof(struct qlcnic_npar_func_cfg);
3712         rem     = size % sizeof(struct qlcnic_npar_func_cfg);
3713         if (rem)
3714                 return QL_STATUS_INVALID_PARAM;
3715
3716         np_cfg = (struct qlcnic_npar_func_cfg *) buf;
3717         ret = validate_npar_config(adapter, np_cfg, count);
3718         if (ret)
3719                 return ret;
3720
3721         for (i = 0; i < count ; i++) {
3722                 pci_func = np_cfg[i].pci_func;
3723                 ret = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
3724                 if (ret)
3725                         return ret;
3726                 nic_info.pci_func = pci_func;
3727                 nic_info.min_tx_bw = np_cfg[i].min_bw;
3728                 nic_info.max_tx_bw = np_cfg[i].max_bw;
3729                 ret = qlcnic_set_nic_info(adapter, &nic_info);
3730                 if (ret)
3731                         return ret;
3732                 adapter->npars[i].min_bw = nic_info.min_tx_bw;
3733                 adapter->npars[i].max_bw = nic_info.max_tx_bw;
3734         }
3735
3736         return size;
3737
3738 }
3739 static ssize_t
3740 qlcnic_sysfs_read_npar_config(struct file *file, struct kobject *kobj,
3741         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3742 {
3743         struct device *dev = container_of(kobj, struct device, kobj);
3744         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3745         struct qlcnic_info nic_info;
3746         struct qlcnic_npar_func_cfg np_cfg[QLCNIC_MAX_PCI_FUNC];
3747         int i, ret;
3748
3749         if (size != sizeof(np_cfg))
3750                 return QL_STATUS_INVALID_PARAM;
3751
3752         for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3753                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3754                         continue;
3755                 ret = qlcnic_get_nic_info(adapter, &nic_info, i);
3756                 if (ret)
3757                         return ret;
3758
3759                 np_cfg[i].pci_func = i;
3760                 np_cfg[i].op_mode = nic_info.op_mode;
3761                 np_cfg[i].port_num = nic_info.phys_port;
3762                 np_cfg[i].fw_capab = nic_info.capabilities;
3763                 np_cfg[i].min_bw = nic_info.min_tx_bw ;
3764                 np_cfg[i].max_bw = nic_info.max_tx_bw;
3765                 np_cfg[i].max_tx_queues = nic_info.max_tx_ques;
3766                 np_cfg[i].max_rx_queues = nic_info.max_rx_ques;
3767         }
3768         memcpy(buf, &np_cfg, size);
3769         return size;
3770 }
3771
3772 static ssize_t
3773 qlcnic_sysfs_get_port_stats(struct file *file, struct kobject *kobj,
3774         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3775 {
3776         struct device *dev = container_of(kobj, struct device, kobj);
3777         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3778         struct qlcnic_esw_statistics port_stats;
3779         int ret;
3780
3781         if (size != sizeof(struct qlcnic_esw_statistics))
3782                 return QL_STATUS_INVALID_PARAM;
3783
3784         if (offset >= QLCNIC_MAX_PCI_FUNC)
3785                 return QL_STATUS_INVALID_PARAM;
3786
3787         memset(&port_stats, 0, size);
3788         ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3789                                                                 &port_stats.rx);
3790         if (ret)
3791                 return ret;
3792
3793         ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3794                                                                 &port_stats.tx);
3795         if (ret)
3796                 return ret;
3797
3798         memcpy(buf, &port_stats, size);
3799         return size;
3800 }
3801
3802 static ssize_t
3803 qlcnic_sysfs_get_esw_stats(struct file *file, struct kobject *kobj,
3804         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3805 {
3806         struct device *dev = container_of(kobj, struct device, kobj);
3807         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3808         struct qlcnic_esw_statistics esw_stats;
3809         int ret;
3810
3811         if (size != sizeof(struct qlcnic_esw_statistics))
3812                 return QL_STATUS_INVALID_PARAM;
3813
3814         if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3815                 return QL_STATUS_INVALID_PARAM;
3816
3817         memset(&esw_stats, 0, size);
3818         ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3819                                                                 &esw_stats.rx);
3820         if (ret)
3821                 return ret;
3822
3823         ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3824                                                                 &esw_stats.tx);
3825         if (ret)
3826                 return ret;
3827
3828         memcpy(buf, &esw_stats, size);
3829         return size;
3830 }
3831
3832 static ssize_t
3833 qlcnic_sysfs_clear_esw_stats(struct file *file, struct kobject *kobj,
3834         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3835 {
3836         struct device *dev = container_of(kobj, struct device, kobj);
3837         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3838         int ret;
3839
3840         if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3841                 return QL_STATUS_INVALID_PARAM;
3842
3843         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3844                                                 QLCNIC_QUERY_RX_COUNTER);
3845         if (ret)
3846                 return ret;
3847
3848         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3849                                                 QLCNIC_QUERY_TX_COUNTER);
3850         if (ret)
3851                 return ret;
3852
3853         return size;
3854 }
3855
3856 static ssize_t
3857 qlcnic_sysfs_clear_port_stats(struct file *file, struct kobject *kobj,
3858         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3859 {
3860
3861         struct device *dev = container_of(kobj, struct device, kobj);
3862         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3863         int ret;
3864
3865         if (offset >= QLCNIC_MAX_PCI_FUNC)
3866                 return QL_STATUS_INVALID_PARAM;
3867
3868         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3869                                                 QLCNIC_QUERY_RX_COUNTER);
3870         if (ret)
3871                 return ret;
3872
3873         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3874                                                 QLCNIC_QUERY_TX_COUNTER);
3875         if (ret)
3876                 return ret;
3877
3878         return size;
3879 }
3880
3881 static ssize_t
3882 qlcnic_sysfs_read_pci_config(struct file *file, struct kobject *kobj,
3883         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3884 {
3885         struct device *dev = container_of(kobj, struct device, kobj);
3886         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3887         struct qlcnic_pci_func_cfg pci_cfg[QLCNIC_MAX_PCI_FUNC];
3888         struct qlcnic_pci_info *pci_info;
3889         int i, ret;
3890
3891         if (size != sizeof(pci_cfg))
3892                 return QL_STATUS_INVALID_PARAM;
3893
3894         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
3895         if (!pci_info)
3896                 return -ENOMEM;
3897
3898         ret = qlcnic_get_pci_info(adapter, pci_info);
3899         if (ret) {
3900                 kfree(pci_info);
3901                 return ret;
3902         }
3903
3904         for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3905                 pci_cfg[i].pci_func = pci_info[i].id;
3906                 pci_cfg[i].func_type = pci_info[i].type;
3907                 pci_cfg[i].port_num = pci_info[i].default_port;
3908                 pci_cfg[i].min_bw = pci_info[i].tx_min_bw;
3909                 pci_cfg[i].max_bw = pci_info[i].tx_max_bw;
3910                 memcpy(&pci_cfg[i].def_mac_addr, &pci_info[i].mac, ETH_ALEN);
3911         }
3912         memcpy(buf, &pci_cfg, size);
3913         kfree(pci_info);
3914         return size;
3915 }
3916 static struct bin_attribute bin_attr_npar_config = {
3917         .attr = {.name = "npar_config", .mode = (S_IRUGO | S_IWUSR)},
3918         .size = 0,
3919         .read = qlcnic_sysfs_read_npar_config,
3920         .write = qlcnic_sysfs_write_npar_config,
3921 };
3922
3923 static struct bin_attribute bin_attr_pci_config = {
3924         .attr = {.name = "pci_config", .mode = (S_IRUGO | S_IWUSR)},
3925         .size = 0,
3926         .read = qlcnic_sysfs_read_pci_config,
3927         .write = NULL,
3928 };
3929
3930 static struct bin_attribute bin_attr_port_stats = {
3931         .attr = {.name = "port_stats", .mode = (S_IRUGO | S_IWUSR)},
3932         .size = 0,
3933         .read = qlcnic_sysfs_get_port_stats,
3934         .write = qlcnic_sysfs_clear_port_stats,
3935 };
3936
3937 static struct bin_attribute bin_attr_esw_stats = {
3938         .attr = {.name = "esw_stats", .mode = (S_IRUGO | S_IWUSR)},
3939         .size = 0,
3940         .read = qlcnic_sysfs_get_esw_stats,
3941         .write = qlcnic_sysfs_clear_esw_stats,
3942 };
3943
3944 static struct bin_attribute bin_attr_esw_config = {
3945         .attr = {.name = "esw_config", .mode = (S_IRUGO | S_IWUSR)},
3946         .size = 0,
3947         .read = qlcnic_sysfs_read_esw_config,
3948         .write = qlcnic_sysfs_write_esw_config,
3949 };
3950
3951 static struct bin_attribute bin_attr_pm_config = {
3952         .attr = {.name = "pm_config", .mode = (S_IRUGO | S_IWUSR)},
3953         .size = 0,
3954         .read = qlcnic_sysfs_read_pm_config,
3955         .write = qlcnic_sysfs_write_pm_config,
3956 };
3957
3958 static void
3959 qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
3960 {
3961         struct device *dev = &adapter->pdev->dev;
3962
3963         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3964                 if (device_create_file(dev, &dev_attr_bridged_mode))
3965                         dev_warn(dev,
3966                                 "failed to create bridged_mode sysfs entry\n");
3967 }
3968
3969 static void
3970 qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
3971 {
3972         struct device *dev = &adapter->pdev->dev;
3973
3974         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3975                 device_remove_file(dev, &dev_attr_bridged_mode);
3976 }
3977
3978 static void
3979 qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
3980 {
3981         struct device *dev = &adapter->pdev->dev;
3982
3983         if (device_create_bin_file(dev, &bin_attr_port_stats))
3984                 dev_info(dev, "failed to create port stats sysfs entry");
3985
3986         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
3987                 return;
3988         if (device_create_file(dev, &dev_attr_diag_mode))
3989                 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3990         if (device_create_bin_file(dev, &bin_attr_crb))
3991                 dev_info(dev, "failed to create crb sysfs entry\n");
3992         if (device_create_bin_file(dev, &bin_attr_mem))
3993                 dev_info(dev, "failed to create mem sysfs entry\n");
3994         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
3995                 return;
3996         if (device_create_bin_file(dev, &bin_attr_esw_config))
3997                 dev_info(dev, "failed to create esw config sysfs entry");
3998         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3999                 return;
4000         if (device_create_bin_file(dev, &bin_attr_pci_config))
4001                 dev_info(dev, "failed to create pci config sysfs entry");
4002         if (device_create_bin_file(dev, &bin_attr_npar_config))
4003                 dev_info(dev, "failed to create npar config sysfs entry");
4004         if (device_create_bin_file(dev, &bin_attr_pm_config))
4005                 dev_info(dev, "failed to create pm config sysfs entry");
4006         if (device_create_bin_file(dev, &bin_attr_esw_stats))
4007                 dev_info(dev, "failed to create eswitch stats sysfs entry");
4008 }
4009
4010 static void
4011 qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
4012 {
4013         struct device *dev = &adapter->pdev->dev;
4014
4015         device_remove_bin_file(dev, &bin_attr_port_stats);
4016
4017         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
4018                 return;
4019         device_remove_file(dev, &dev_attr_diag_mode);
4020         device_remove_bin_file(dev, &bin_attr_crb);
4021         device_remove_bin_file(dev, &bin_attr_mem);
4022         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
4023                 return;
4024         device_remove_bin_file(dev, &bin_attr_esw_config);
4025         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
4026                 return;
4027         device_remove_bin_file(dev, &bin_attr_pci_config);
4028         device_remove_bin_file(dev, &bin_attr_npar_config);
4029         device_remove_bin_file(dev, &bin_attr_pm_config);
4030         device_remove_bin_file(dev, &bin_attr_esw_stats);
4031 }
4032
4033 #ifdef CONFIG_INET
4034
4035 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4036
4037 static void
4038 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4039                         struct net_device *dev, unsigned long event)
4040 {
4041         struct in_device *indev;
4042
4043         indev = in_dev_get(dev);
4044         if (!indev)
4045                 return;
4046
4047         for_ifa(indev) {
4048                 switch (event) {
4049                 case NETDEV_UP:
4050                         qlcnic_config_ipaddr(adapter,
4051                                         ifa->ifa_address, QLCNIC_IP_UP);
4052                         break;
4053                 case NETDEV_DOWN:
4054                         qlcnic_config_ipaddr(adapter,
4055                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4056                         break;
4057                 default:
4058                         break;
4059                 }
4060         } endfor_ifa(indev);
4061
4062         in_dev_put(indev);
4063 }
4064
4065 static void
4066 qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4067 {
4068         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4069         struct net_device *dev;
4070         u16 vid;
4071
4072         qlcnic_config_indev_addr(adapter, netdev, event);
4073
4074         if (!adapter->vlgrp)
4075                 return;
4076
4077         for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) {
4078                 dev = vlan_group_get_device(adapter->vlgrp, vid);
4079                 if (!dev)
4080                         continue;
4081
4082                 qlcnic_config_indev_addr(adapter, dev, event);
4083         }
4084 }
4085
4086 static int qlcnic_netdev_event(struct notifier_block *this,
4087                                  unsigned long event, void *ptr)
4088 {
4089         struct qlcnic_adapter *adapter;
4090         struct net_device *dev = (struct net_device *)ptr;
4091
4092 recheck:
4093         if (dev == NULL)
4094                 goto done;
4095
4096         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4097                 dev = vlan_dev_real_dev(dev);
4098                 goto recheck;
4099         }
4100
4101         if (!is_qlcnic_netdev(dev))
4102                 goto done;
4103
4104         adapter = netdev_priv(dev);
4105
4106         if (!adapter)
4107                 goto done;
4108
4109         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4110                 goto done;
4111
4112         qlcnic_config_indev_addr(adapter, dev, event);
4113 done:
4114         return NOTIFY_DONE;
4115 }
4116
4117 static int
4118 qlcnic_inetaddr_event(struct notifier_block *this,
4119                 unsigned long event, void *ptr)
4120 {
4121         struct qlcnic_adapter *adapter;
4122         struct net_device *dev;
4123
4124         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4125
4126         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4127
4128 recheck:
4129         if (dev == NULL)
4130                 goto done;
4131
4132         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4133                 dev = vlan_dev_real_dev(dev);
4134                 goto recheck;
4135         }
4136
4137         if (!is_qlcnic_netdev(dev))
4138                 goto done;
4139
4140         adapter = netdev_priv(dev);
4141
4142         if (!adapter)
4143                 goto done;
4144
4145         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4146                 goto done;
4147
4148         switch (event) {
4149         case NETDEV_UP:
4150                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4151                 break;
4152         case NETDEV_DOWN:
4153                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4154                 break;
4155         default:
4156                 break;
4157         }
4158
4159 done:
4160         return NOTIFY_DONE;
4161 }
4162
4163 static struct notifier_block    qlcnic_netdev_cb = {
4164         .notifier_call = qlcnic_netdev_event,
4165 };
4166
4167 static struct notifier_block qlcnic_inetaddr_cb = {
4168         .notifier_call = qlcnic_inetaddr_event,
4169 };
4170 #else
4171 static void
4172 qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4173 { }
4174 #endif
4175 static struct pci_error_handlers qlcnic_err_handler = {
4176         .error_detected = qlcnic_io_error_detected,
4177         .slot_reset = qlcnic_io_slot_reset,
4178         .resume = qlcnic_io_resume,
4179 };
4180
4181 static struct pci_driver qlcnic_driver = {
4182         .name = qlcnic_driver_name,
4183         .id_table = qlcnic_pci_tbl,
4184         .probe = qlcnic_probe,
4185         .remove = __devexit_p(qlcnic_remove),
4186 #ifdef CONFIG_PM
4187         .suspend = qlcnic_suspend,
4188         .resume = qlcnic_resume,
4189 #endif
4190         .shutdown = qlcnic_shutdown,
4191         .err_handler = &qlcnic_err_handler
4192
4193 };
4194
4195 static int __init qlcnic_init_module(void)
4196 {
4197         int ret;
4198
4199         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4200
4201 #ifdef CONFIG_INET
4202         register_netdevice_notifier(&qlcnic_netdev_cb);
4203         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4204 #endif
4205
4206         ret = pci_register_driver(&qlcnic_driver);
4207         if (ret) {
4208 #ifdef CONFIG_INET
4209                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4210                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4211 #endif
4212         }
4213
4214         return ret;
4215 }
4216
4217 module_init(qlcnic_init_module);
4218
4219 static void __exit qlcnic_exit_module(void)
4220 {
4221
4222         pci_unregister_driver(&qlcnic_driver);
4223
4224 #ifdef CONFIG_INET
4225         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4226         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4227 #endif
4228 }
4229
4230 module_exit(qlcnic_exit_module);