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