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

   1 /*
   2  * QLogic qlcnic NIC Driver
   3  * Copyright (c) 2009-2013 QLogic Corporation
   4  *
   5  * See LICENSE.qlcnic for copyright and licensing details.
   6  */
   7
   8 #include <linux/vmalloc.h>
   9 #include <linux/interrupt.h>
  10
  11 #include "qlcnic.h"
  12 #include "qlcnic_sriov.h"
  13 #include "qlcnic_hw.h"
  14
  15 #include <linux/swab.h>
  16 #include <linux/dma-mapping.h>
  17 #include <linux/if_vlan.h>
  18 #include <net/ip.h>
  19 #include <linux/ipv6.h>
  20 #include <linux/inetdevice.h>
  21 #include <linux/aer.h>
  22 #include <linux/log2.h>
  23 #include <linux/pci.h>
  24
  25 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  26 MODULE_LICENSE("GPL");
  27 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  28 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  29
  30 char qlcnic_driver_name[] = "qlcnic";
  31 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  32         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  33
  34 static int qlcnic_mac_learn;
  35 module_param(qlcnic_mac_learn, int, 0444);
  36 MODULE_PARM_DESC(qlcnic_mac_learn,
  37                  "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
  38
  39 int qlcnic_use_msi = 1;
  40 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
  41 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
  42
  43 int qlcnic_use_msi_x = 1;
  44 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
  45 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
  46
  47 int qlcnic_auto_fw_reset = 1;
  48 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
  49 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
  50
  51 int qlcnic_load_fw_file;
  52 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file)");
  53 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
  54
  55 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  56 static void qlcnic_remove(struct pci_dev *pdev);
  57 static int qlcnic_open(struct net_device *netdev);
  58 static int qlcnic_close(struct net_device *netdev);
  59 static void qlcnic_tx_timeout(struct net_device *netdev);
  60 static void qlcnic_attach_work(struct work_struct *work);
  61 static void qlcnic_fwinit_work(struct work_struct *work);
  62 #ifdef CONFIG_NET_POLL_CONTROLLER
  63 static void qlcnic_poll_controller(struct net_device *netdev);
  64 #endif
  65
  66 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  67 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  68
  69 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  70 static irqreturn_t qlcnic_intr(int irq, void *data);
  71 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  72 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  73 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  74
  75 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  76 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  77
  78 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  79 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  80 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  81 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
  82 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
  83
  84 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  85 {
  86         struct qlcnic_hardware_context *ahw = adapter->ahw;
  87
  88         if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
  89                 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
  90         else
  91                 return 1;
  92 }
  93
  94 /*  PCI Device ID Table  */
  95 #define ENTRY(device) \
  96         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
  97         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
  98
  99 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 100         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 101         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 102         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
 103         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
 104         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
 105         {0,}
 106 };
 107
 108 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 109
 110
 111 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 112 {
 113         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 114 }
 115
 116 static const u32 msi_tgt_status[8] = {
 117         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 118         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 119         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 120         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 121 };
 122
 123 static const u32 qlcnic_reg_tbl[] = {
 124         0x1B20A8,       /* PEG_HALT_STAT1 */
 125         0x1B20AC,       /* PEG_HALT_STAT2 */
 126         0x1B20B0,       /* FW_HEARTBEAT */
 127         0x1B2100,       /* LOCK ID */
 128         0x1B2128,       /* FW_CAPABILITIES */
 129         0x1B2138,       /* drv active */
 130         0x1B2140,       /* dev state */
 131         0x1B2144,       /* drv state */
 132         0x1B2148,       /* drv scratch */
 133         0x1B214C,       /* dev partition info */
 134         0x1B2174,       /* drv idc ver */
 135         0x1B2150,       /* fw version major */
 136         0x1B2154,       /* fw version minor */
 137         0x1B2158,       /* fw version sub */
 138         0x1B219C,       /* npar state */
 139         0x1B21FC,       /* FW_IMG_VALID */
 140         0x1B2250,       /* CMD_PEG_STATE */
 141         0x1B233C,       /* RCV_PEG_STATE */
 142         0x1B23B4,       /* ASIC TEMP */
 143         0x1B216C,       /* FW api */
 144         0x1B2170,       /* drv op mode */
 145         0x13C010,       /* flash lock */
 146         0x13C014,       /* flash unlock */
 147 };
 148
 149 static const struct qlcnic_board_info qlcnic_boards[] = {
 150         { PCI_VENDOR_ID_QLOGIC,
 151           PCI_DEVICE_ID_QLOGIC_QLE844X,
 152           0x0,
 153           0x0,
 154           "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
 155         { PCI_VENDOR_ID_QLOGIC,
 156           PCI_DEVICE_ID_QLOGIC_QLE834X,
 157           PCI_VENDOR_ID_QLOGIC,
 158           0x24e,
 159           "8300 Series Dual Port 10GbE Converged Network Adapter "
 160           "(TCP/IP Networking)" },
 161         { PCI_VENDOR_ID_QLOGIC,
 162           PCI_DEVICE_ID_QLOGIC_QLE834X,
 163           PCI_VENDOR_ID_QLOGIC,
 164           0x243,
 165           "8300 Series Single Port 10GbE Converged Network Adapter "
 166           "(TCP/IP Networking)" },
 167         { PCI_VENDOR_ID_QLOGIC,
 168           PCI_DEVICE_ID_QLOGIC_QLE834X,
 169           PCI_VENDOR_ID_QLOGIC,
 170           0x24a,
 171           "8300 Series Dual Port 10GbE Converged Network Adapter "
 172           "(TCP/IP Networking)" },
 173         { PCI_VENDOR_ID_QLOGIC,
 174           PCI_DEVICE_ID_QLOGIC_QLE834X,
 175           PCI_VENDOR_ID_QLOGIC,
 176           0x246,
 177           "8300 Series Dual Port 10GbE Converged Network Adapter "
 178           "(TCP/IP Networking)" },
 179         { PCI_VENDOR_ID_QLOGIC,
 180           PCI_DEVICE_ID_QLOGIC_QLE834X,
 181           PCI_VENDOR_ID_QLOGIC,
 182           0x252,
 183           "8300 Series Dual Port 10GbE Converged Network Adapter "
 184           "(TCP/IP Networking)" },
 185         { PCI_VENDOR_ID_QLOGIC,
 186           PCI_DEVICE_ID_QLOGIC_QLE834X,
 187           PCI_VENDOR_ID_QLOGIC,
 188           0x26e,
 189           "8300 Series Dual Port 10GbE Converged Network Adapter "
 190           "(TCP/IP Networking)" },
 191         { PCI_VENDOR_ID_QLOGIC,
 192           PCI_DEVICE_ID_QLOGIC_QLE834X,
 193           PCI_VENDOR_ID_QLOGIC,
 194           0x260,
 195           "8300 Series Dual Port 10GbE Converged Network Adapter "
 196           "(TCP/IP Networking)" },
 197         { PCI_VENDOR_ID_QLOGIC,
 198           PCI_DEVICE_ID_QLOGIC_QLE834X,
 199           PCI_VENDOR_ID_QLOGIC,
 200           0x266,
 201           "8300 Series Single Port 10GbE Converged Network Adapter "
 202           "(TCP/IP Networking)" },
 203         { PCI_VENDOR_ID_QLOGIC,
 204           PCI_DEVICE_ID_QLOGIC_QLE834X,
 205           PCI_VENDOR_ID_QLOGIC,
 206           0x269,
 207           "8300 Series Dual Port 10GbE Converged Network Adapter "
 208           "(TCP/IP Networking)" },
 209         { PCI_VENDOR_ID_QLOGIC,
 210           PCI_DEVICE_ID_QLOGIC_QLE834X,
 211           PCI_VENDOR_ID_QLOGIC,
 212           0x271,
 213           "8300 Series Dual Port 10GbE Converged Network Adapter "
 214           "(TCP/IP Networking)" },
 215         { PCI_VENDOR_ID_QLOGIC,
 216           PCI_DEVICE_ID_QLOGIC_QLE834X,
 217           0x0, 0x0, "8300 Series 1/10GbE Controller" },
 218         { PCI_VENDOR_ID_QLOGIC,
 219           PCI_DEVICE_ID_QLOGIC_QLE824X,
 220           PCI_VENDOR_ID_QLOGIC,
 221           0x203,
 222           "8200 Series Single Port 10GbE Converged Network Adapter"
 223           "(TCP/IP Networking)" },
 224         { PCI_VENDOR_ID_QLOGIC,
 225           PCI_DEVICE_ID_QLOGIC_QLE824X,
 226           PCI_VENDOR_ID_QLOGIC,
 227           0x207,
 228           "8200 Series Dual Port 10GbE Converged Network Adapter"
 229           "(TCP/IP Networking)" },
 230         { PCI_VENDOR_ID_QLOGIC,
 231           PCI_DEVICE_ID_QLOGIC_QLE824X,
 232           PCI_VENDOR_ID_QLOGIC,
 233           0x20b,
 234           "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
 235         { PCI_VENDOR_ID_QLOGIC,
 236           PCI_DEVICE_ID_QLOGIC_QLE824X,
 237           PCI_VENDOR_ID_QLOGIC,
 238           0x20c,
 239           "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
 240         { PCI_VENDOR_ID_QLOGIC,
 241           PCI_DEVICE_ID_QLOGIC_QLE824X,
 242           PCI_VENDOR_ID_QLOGIC,
 243           0x20f,
 244           "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
 245         { PCI_VENDOR_ID_QLOGIC,
 246           PCI_DEVICE_ID_QLOGIC_QLE824X,
 247           0x103c, 0x3733,
 248           "NC523SFP 10Gb 2-port Server Adapter" },
 249         { PCI_VENDOR_ID_QLOGIC,
 250           PCI_DEVICE_ID_QLOGIC_QLE824X,
 251           0x103c, 0x3346,
 252           "CN1000Q Dual Port Converged Network Adapter" },
 253         { PCI_VENDOR_ID_QLOGIC,
 254           PCI_DEVICE_ID_QLOGIC_QLE824X,
 255           PCI_VENDOR_ID_QLOGIC,
 256           0x210,
 257           "QME8242-k 10GbE Dual Port Mezzanine Card" },
 258         { PCI_VENDOR_ID_QLOGIC,
 259           PCI_DEVICE_ID_QLOGIC_QLE824X,
 260           0x0, 0x0, "cLOM8214 1/10GbE Controller" },
 261 };
 262
 263 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 264
 265 static const
 266 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 267
 268 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 269 {
 270         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 271
 272         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 273
 274         return recv_ctx->sds_rings == NULL;
 275 }
 276
 277 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 278 {
 279         if (recv_ctx->sds_rings != NULL)
 280                 kfree(recv_ctx->sds_rings);
 281
 282         recv_ctx->sds_rings = NULL;
 283 }
 284
 285 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 286 {
 287         struct net_device *netdev = adapter->netdev;
 288         struct pci_dev *pdev = adapter->pdev;
 289         u8 mac_addr[ETH_ALEN];
 290         int ret;
 291
 292         ret = qlcnic_get_mac_address(adapter, mac_addr,
 293                                      adapter->ahw->pci_func);
 294         if (ret)
 295                 return ret;
 296
 297         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 298         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 299
 300         /* set station address */
 301
 302         if (!is_valid_ether_addr(netdev->dev_addr))
 303                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 304                                         netdev->dev_addr);
 305
 306         return 0;
 307 }
 308
 309 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
 310 {
 311         struct qlcnic_mac_list_s *cur;
 312         struct list_head *head;
 313
 314         list_for_each(head, &adapter->mac_list) {
 315                 cur = list_entry(head, struct qlcnic_mac_list_s, list);
 316                 if (!memcmp(adapter->mac_addr, cur->mac_addr, ETH_ALEN)) {
 317                         qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
 318                                                   0, QLCNIC_MAC_DEL);
 319                         list_del(&cur->list);
 320                         kfree(cur);
 321                         return;
 322                 }
 323         }
 324 }
 325
 326 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 327 {
 328         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 329         struct sockaddr *addr = p;
 330
 331         if (qlcnic_sriov_vf_check(adapter))
 332                 return -EINVAL;
 333
 334         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 335                 return -EOPNOTSUPP;
 336
 337         if (!is_valid_ether_addr(addr->sa_data))
 338                 return -EINVAL;
 339
 340         if (!memcmp(adapter->mac_addr, addr->sa_data, ETH_ALEN))
 341                 return 0;
 342
 343         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 344                 netif_device_detach(netdev);
 345                 qlcnic_napi_disable(adapter);
 346         }
 347
 348         qlcnic_delete_adapter_mac(adapter);
 349         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 350         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 351         qlcnic_set_multi(adapter->netdev);
 352
 353         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 354                 netif_device_attach(netdev);
 355                 qlcnic_napi_enable(adapter);
 356         }
 357         return 0;
 358 }
 359
 360 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 361                         struct net_device *netdev, const unsigned char *addr)
 362 {
 363         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 364         int err = -EOPNOTSUPP;
 365
 366         if (!adapter->fdb_mac_learn)
 367                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
 368
 369         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 370                 if (is_unicast_ether_addr(addr)) {
 371                         err = dev_uc_del(netdev, addr);
 372                         if (!err)
 373                                 err = qlcnic_nic_del_mac(adapter, addr);
 374                 } else if (is_multicast_ether_addr(addr)) {
 375                         err = dev_mc_del(netdev, addr);
 376                 } else {
 377                         err =  -EINVAL;
 378                 }
 379         }
 380         return err;
 381 }
 382
 383 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 384                         struct net_device *netdev,
 385                         const unsigned char *addr, u16 flags)
 386 {
 387         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 388         int err = 0;
 389
 390         if (!adapter->fdb_mac_learn)
 391                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
 392
 393         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 394                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 395                 return -EOPNOTSUPP;
 396         }
 397
 398         if (ether_addr_equal(addr, adapter->mac_addr))
 399                 return err;
 400
 401         if (is_unicast_ether_addr(addr)) {
 402                 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
 403                         err = dev_uc_add_excl(netdev, addr);
 404                 else
 405                         err = -ENOMEM;
 406         } else if (is_multicast_ether_addr(addr)) {
 407                 err = dev_mc_add_excl(netdev, addr);
 408         } else {
 409                 err = -EINVAL;
 410         }
 411
 412         return err;
 413 }
 414
 415 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 416                         struct net_device *netdev, int idx)
 417 {
 418         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 419
 420         if (!adapter->fdb_mac_learn)
 421                 return ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 422
 423         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
 424                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 425
 426         return idx;
 427 }
 428
 429 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 430 {
 431         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 432                 usleep_range(10000, 11000);
 433
 434         if (!adapter->fw_work.work.func)
 435                 return;
 436
 437         cancel_delayed_work_sync(&adapter->fw_work);
 438 }
 439
 440 static int qlcnic_get_phys_port_id(struct net_device *netdev,
 441                                    struct netdev_phys_port_id *ppid)
 442 {
 443         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 444         struct qlcnic_hardware_context *ahw = adapter->ahw;
 445
 446         if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
 447                 return -EOPNOTSUPP;
 448
 449         ppid->id_len = sizeof(ahw->phys_port_id);
 450         memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
 451
 452         return 0;
 453 }
 454
 455 static const struct net_device_ops qlcnic_netdev_ops = {
 456         .ndo_open          = qlcnic_open,
 457         .ndo_stop          = qlcnic_close,
 458         .ndo_start_xmit    = qlcnic_xmit_frame,
 459         .ndo_get_stats     = qlcnic_get_stats,
 460         .ndo_validate_addr = eth_validate_addr,
 461         .ndo_set_rx_mode   = qlcnic_set_multi,
 462         .ndo_set_mac_address    = qlcnic_set_mac,
 463         .ndo_change_mtu    = qlcnic_change_mtu,
 464         .ndo_fix_features  = qlcnic_fix_features,
 465         .ndo_set_features  = qlcnic_set_features,
 466         .ndo_tx_timeout    = qlcnic_tx_timeout,
 467         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 468         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 469         .ndo_fdb_add            = qlcnic_fdb_add,
 470         .ndo_fdb_del            = qlcnic_fdb_del,
 471         .ndo_fdb_dump           = qlcnic_fdb_dump,
 472         .ndo_get_phys_port_id   = qlcnic_get_phys_port_id,
 473 #ifdef CONFIG_NET_POLL_CONTROLLER
 474         .ndo_poll_controller = qlcnic_poll_controller,
 475 #endif
 476 #ifdef CONFIG_QLCNIC_SRIOV
 477         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 478         .ndo_set_vf_tx_rate     = qlcnic_sriov_set_vf_tx_rate,
 479         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 480         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 481         .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 482 #endif
 483 };
 484
 485 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 486         .ndo_open          = qlcnic_open,
 487 };
 488
 489 static struct qlcnic_nic_template qlcnic_ops = {
 490         .config_bridged_mode    = qlcnic_config_bridged_mode,
 491         .config_led             = qlcnic_82xx_config_led,
 492         .start_firmware         = qlcnic_82xx_start_firmware,
 493         .request_reset          = qlcnic_82xx_dev_request_reset,
 494         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 495         .napi_add               = qlcnic_82xx_napi_add,
 496         .napi_del               = qlcnic_82xx_napi_del,
 497         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 498         .shutdown               = qlcnic_82xx_shutdown,
 499         .resume                 = qlcnic_82xx_resume,
 500         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 501 };
 502
 503 struct qlcnic_nic_template qlcnic_vf_ops = {
 504         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 505         .config_led             = qlcnicvf_config_led,
 506         .start_firmware         = qlcnicvf_start_firmware
 507 };
 508
 509 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 510         .read_crb                       = qlcnic_82xx_read_crb,
 511         .write_crb                      = qlcnic_82xx_write_crb,
 512         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 513         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 514         .get_mac_address                = qlcnic_82xx_get_mac_address,
 515         .setup_intr                     = qlcnic_82xx_setup_intr,
 516         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 517         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 518         .get_func_no                    = qlcnic_82xx_get_func_no,
 519         .api_lock                       = qlcnic_82xx_api_lock,
 520         .api_unlock                     = qlcnic_82xx_api_unlock,
 521         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 522         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 523         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 524         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 525         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 526         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 527         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 528         .setup_link_event               = qlcnic_82xx_linkevent_request,
 529         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 530         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 531         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 532         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 533         .napi_enable                    = qlcnic_82xx_napi_enable,
 534         .napi_disable                   = qlcnic_82xx_napi_disable,
 535         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 536         .config_rss                     = qlcnic_82xx_config_rss,
 537         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 538         .config_loopback                = qlcnic_82xx_set_lb_mode,
 539         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 540         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 541         .change_l2_filter               = qlcnic_82xx_change_filter,
 542         .get_board_info                 = qlcnic_82xx_get_board_info,
 543         .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 544         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 545         .read_phys_port_id              = qlcnic_82xx_read_phys_port_id,
 546         .io_error_detected              = qlcnic_82xx_io_error_detected,
 547         .io_slot_reset                  = qlcnic_82xx_io_slot_reset,
 548         .io_resume                      = qlcnic_82xx_io_resume,
 549 };
 550
 551 static void qlcnic_get_multiq_capability(struct qlcnic_adapter *adapter)
 552 {
 553         struct qlcnic_hardware_context *ahw = adapter->ahw;
 554         int num_tx_q;
 555
 556         if (ahw->msix_supported &&
 557             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
 558                 num_tx_q = min_t(int, QLCNIC_DEF_NUM_TX_RINGS,
 559                                  num_online_cpus());
 560                 if (num_tx_q > 1) {
 561                         test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE,
 562                                          &adapter->state);
 563                         adapter->max_drv_tx_rings = num_tx_q;
 564                 }
 565         } else {
 566                 adapter->max_drv_tx_rings = 1;
 567         }
 568 }
 569
 570 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 571 {
 572         struct pci_dev *pdev = adapter->pdev;
 573         int max_tx_rings, max_sds_rings, tx_vector;
 574         int err = -1, i;
 575
 576         if (adapter->flags & QLCNIC_TX_INTR_SHARED) {
 577                 max_tx_rings = 0;
 578                 tx_vector = 0;
 579         } else {
 580                 max_tx_rings = adapter->max_drv_tx_rings;
 581                 tx_vector = 1;
 582         }
 583
 584         if (!adapter->msix_entries) {
 585                 adapter->msix_entries = kcalloc(num_msix,
 586                                                 sizeof(struct msix_entry),
 587                                                 GFP_KERNEL);
 588                 if (!adapter->msix_entries)
 589                         return -ENOMEM;
 590         }
 591
 592         adapter->max_sds_rings = 1;
 593         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 594
 595         if (adapter->ahw->msix_supported) {
 596  enable_msix:
 597                 for (i = 0; i < num_msix; i++)
 598                         adapter->msix_entries[i].entry = i;
 599                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 600                 if (err == 0) {
 601                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 602                         if (qlcnic_83xx_check(adapter)) {
 603                                 adapter->ahw->num_msix = num_msix;
 604                                 /* subtract mail box and tx ring vectors */
 605                                 adapter->max_sds_rings = num_msix -
 606                                                          max_tx_rings - 1;
 607                         } else {
 608                                 adapter->ahw->num_msix = num_msix;
 609                                 if (qlcnic_check_multi_tx(adapter) &&
 610                                     !adapter->ahw->diag_test &&
 611                                     (adapter->max_drv_tx_rings > 1))
 612                                         max_sds_rings = num_msix - max_tx_rings;
 613                                 else
 614                                         max_sds_rings = num_msix;
 615
 616                                 adapter->max_sds_rings = max_sds_rings;
 617                         }
 618                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 619                         return err;
 620                 } else if (err > 0) {
 621                         dev_info(&pdev->dev,
 622                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 623                                  num_msix);
 624                         if (qlcnic_83xx_check(adapter)) {
 625                                 if (err < (QLC_83XX_MINIMUM_VECTOR - tx_vector))
 626                                         return err;
 627                                 err -= (max_tx_rings + 1);
 628                                 num_msix = rounddown_pow_of_two(err);
 629                                 num_msix += (max_tx_rings + 1);
 630                         } else {
 631                                 num_msix = rounddown_pow_of_two(err);
 632                                 if (qlcnic_check_multi_tx(adapter))
 633                                         num_msix += max_tx_rings;
 634                         }
 635
 636                         if (num_msix) {
 637                                 dev_info(&pdev->dev,
 638                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 639                                          num_msix);
 640                                 goto enable_msix;
 641                         }
 642                 } else {
 643                         dev_info(&pdev->dev,
 644                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 645                                  num_msix);
 646                 }
 647         }
 648
 649         return err;
 650 }
 651
 652 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 653 {
 654         int err = 0;
 655         u32 offset, mask_reg;
 656         const struct qlcnic_legacy_intr_set *legacy_intrp;
 657         struct qlcnic_hardware_context *ahw = adapter->ahw;
 658         struct pci_dev *pdev = adapter->pdev;
 659
 660         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 661                 adapter->flags |= QLCNIC_MSI_ENABLED;
 662                 offset = msi_tgt_status[adapter->ahw->pci_func];
 663                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 664                                                             offset);
 665                 dev_info(&pdev->dev, "using msi interrupts\n");
 666                 adapter->msix_entries[0].vector = pdev->irq;
 667                 return err;
 668         }
 669
 670         if (qlcnic_use_msi || qlcnic_use_msi_x)
 671                 return -EOPNOTSUPP;
 672
 673         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 674         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 675         offset = legacy_intrp->tgt_status_reg;
 676         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 677         mask_reg = legacy_intrp->tgt_mask_reg;
 678         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 679         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 680         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 681         dev_info(&pdev->dev, "using legacy interrupts\n");
 682         adapter->msix_entries[0].vector = pdev->irq;
 683         return err;
 684 }
 685
 686 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr, int txq)
 687 {
 688         struct qlcnic_hardware_context *ahw = adapter->ahw;
 689         int num_msix, err = 0;
 690
 691         if (!num_intr)
 692                 num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
 693
 694         if (ahw->msix_supported) {
 695                 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 696                                                 num_intr));
 697                 if (qlcnic_check_multi_tx(adapter)) {
 698                         if (txq)
 699                                 adapter->max_drv_tx_rings = txq;
 700                         num_msix += adapter->max_drv_tx_rings;
 701                 }
 702         } else {
 703                 num_msix = 1;
 704         }
 705
 706         err = qlcnic_enable_msix(adapter, num_msix);
 707         if (err == -ENOMEM)
 708                 return err;
 709
 710         if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 711                 qlcnic_disable_multi_tx(adapter);
 712
 713                 err = qlcnic_enable_msi_legacy(adapter);
 714                 if (!err)
 715                         return err;
 716         }
 717
 718         return 0;
 719 }
 720
 721 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
 722 {
 723         struct qlcnic_hardware_context *ahw = adapter->ahw;
 724         int err, i;
 725
 726         if (qlcnic_check_multi_tx(adapter) &&
 727             !ahw->diag_test &&
 728             (adapter->flags & QLCNIC_MSIX_ENABLED)) {
 729                 ahw->intr_tbl = vzalloc(ahw->num_msix *
 730                                         sizeof(struct qlcnic_intrpt_config));
 731                 if (!ahw->intr_tbl)
 732                         return -ENOMEM;
 733
 734                 for (i = 0; i < ahw->num_msix; i++) {
 735                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 736                         ahw->intr_tbl[i].id = i;
 737                         ahw->intr_tbl[i].src = 0;
 738                 }
 739
 740                 err = qlcnic_82xx_config_intrpt(adapter, 1);
 741                 if (err)
 742                         dev_err(&adapter->pdev->dev,
 743                                 "Failed to configure Interrupt for %d vector\n",
 744                                 ahw->num_msix);
 745                 return err;
 746         }
 747
 748         return 0;
 749 }
 750
 751 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 752 {
 753         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 754                 pci_disable_msix(adapter->pdev);
 755         if (adapter->flags & QLCNIC_MSI_ENABLED)
 756                 pci_disable_msi(adapter->pdev);
 757
 758         kfree(adapter->msix_entries);
 759         adapter->msix_entries = NULL;
 760
 761         if (adapter->ahw->intr_tbl) {
 762                 vfree(adapter->ahw->intr_tbl);
 763                 adapter->ahw->intr_tbl = NULL;
 764         }
 765 }
 766
 767 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 768 {
 769         if (ahw->pci_base0 != NULL)
 770                 iounmap(ahw->pci_base0);
 771 }
 772
 773 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 774 {
 775         struct qlcnic_pci_info *pci_info;
 776         int ret;
 777
 778         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 779                 switch (adapter->ahw->port_type) {
 780                 case QLCNIC_GBE:
 781                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
 782                         break;
 783                 case QLCNIC_XGBE:
 784                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
 785                         break;
 786                 }
 787                 return 0;
 788         }
 789
 790         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
 791                 return 0;
 792
 793         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 794         if (!pci_info)
 795                 return -ENOMEM;
 796
 797         ret = qlcnic_get_pci_info(adapter, pci_info);
 798         kfree(pci_info);
 799         return ret;
 800 }
 801
 802 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 803 {
 804         bool ret = false;
 805
 806         if (qlcnic_84xx_check(adapter)) {
 807                 ret = true;
 808         } else if (qlcnic_83xx_check(adapter)) {
 809                 if (adapter->ahw->extra_capability[0] &
 810                     QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
 811                         ret = true;
 812                 else
 813                         ret = false;
 814         }
 815
 816         return ret;
 817 }
 818
 819 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 820 {
 821         struct qlcnic_pci_info *pci_info;
 822         int i, ret = 0, j = 0;
 823         u16 act_pci_func;
 824         u8 pfn;
 825
 826         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 827         if (!pci_info)
 828                 return -ENOMEM;
 829
 830         ret = qlcnic_get_pci_info(adapter, pci_info);
 831         if (ret)
 832                 goto err_pci_info;
 833
 834         act_pci_func = adapter->ahw->act_pci_func;
 835
 836         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 837                                  act_pci_func, GFP_KERNEL);
 838         if (!adapter->npars) {
 839                 ret = -ENOMEM;
 840                 goto err_pci_info;
 841         }
 842
 843         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 844                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 845         if (!adapter->eswitch) {
 846                 ret = -ENOMEM;
 847                 goto err_npars;
 848         }
 849
 850         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 851                 pfn = pci_info[i].id;
 852
 853                 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
 854                         ret = QL_STATUS_INVALID_PARAM;
 855                         goto err_eswitch;
 856                 }
 857
 858                 if (!pci_info[i].active ||
 859                     (pci_info[i].type != QLCNIC_TYPE_NIC))
 860                         continue;
 861
 862                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
 863                         if (!qlcnic_83xx_enable_port_eswitch(adapter, pfn))
 864                                 adapter->npars[j].eswitch_status = true;
 865                         else
 866                                 continue;
 867                 } else {
 868                         adapter->npars[j].eswitch_status = true;
 869                 }
 870
 871                 adapter->npars[j].pci_func = pfn;
 872                 adapter->npars[j].active = (u8)pci_info[i].active;
 873                 adapter->npars[j].type = (u8)pci_info[i].type;
 874                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
 875                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
 876                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
 877
 878                 j++;
 879         }
 880
 881         if (qlcnic_82xx_check(adapter)) {
 882                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
 883                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 884         } else if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
 885                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
 886                         qlcnic_enable_eswitch(adapter, i, 1);
 887         }
 888
 889         kfree(pci_info);
 890         return 0;
 891
 892 err_eswitch:
 893         kfree(adapter->eswitch);
 894         adapter->eswitch = NULL;
 895 err_npars:
 896         kfree(adapter->npars);
 897         adapter->npars = NULL;
 898 err_pci_info:
 899         kfree(pci_info);
 900
 901         return ret;
 902 }
 903
 904 static int
 905 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 906 {
 907         u8 id;
 908         int ret;
 909         u32 data = QLCNIC_MGMT_FUNC;
 910         struct qlcnic_hardware_context *ahw = adapter->ahw;
 911
 912         ret = qlcnic_api_lock(adapter);
 913         if (ret)
 914                 goto err_lock;
 915
 916         id = ahw->pci_func;
 917         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 918         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
 919                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
 920         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
 921         qlcnic_api_unlock(adapter);
 922 err_lock:
 923         return ret;
 924 }
 925
 926 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
 927                             const struct pci_device_id *ent)
 928 {
 929         u32 op_mode, priv_level;
 930
 931         /* Determine FW API version */
 932         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
 933                                                            QLCNIC_FW_API);
 934
 935         /* Find PCI function number */
 936         qlcnic_get_func_no(adapter);
 937
 938         /* Determine function privilege level */
 939         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 940         if (op_mode == QLC_DEV_DRV_DEFAULT)
 941                 priv_level = QLCNIC_MGMT_FUNC;
 942         else
 943                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 944
 945         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 946                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 947                 dev_info(&adapter->pdev->dev,
 948                         "HAL Version: %d Non Privileged function\n",
 949                          adapter->ahw->fw_hal_version);
 950                 adapter->nic_ops = &qlcnic_vf_ops;
 951         } else
 952                 adapter->nic_ops = &qlcnic_ops;
 953 }
 954
 955 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
 956 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
 957 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
 958 {
 959         switch (dev_id) {
 960         case PCI_DEVICE_ID_QLOGIC_QLE824X:
 961                 *bar = QLCNIC_82XX_BAR0_LENGTH;
 962                 break;
 963         case PCI_DEVICE_ID_QLOGIC_QLE834X:
 964         case PCI_DEVICE_ID_QLOGIC_QLE844X:
 965         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
 966         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
 967                 *bar = QLCNIC_83XX_BAR0_LENGTH;
 968                 break;
 969         default:
 970                 *bar = 0;
 971         }
 972 }
 973
 974 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
 975                                 struct qlcnic_hardware_context *ahw)
 976 {
 977         u32 offset;
 978         void __iomem *mem_ptr0 = NULL;
 979         unsigned long mem_len, pci_len0 = 0, bar0_len;
 980
 981         /* remap phys address */
 982         mem_len = pci_resource_len(pdev, 0);
 983
 984         qlcnic_get_bar_length(pdev->device, &bar0_len);
 985         if (mem_len >= bar0_len) {
 986
 987                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 988                 if (mem_ptr0 == NULL) {
 989                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 990                         return -EIO;
 991                 }
 992                 pci_len0 = mem_len;
 993         } else {
 994                 return -EIO;
 995         }
 996
 997         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
 998
 999         ahw->pci_base0 = mem_ptr0;
1000         ahw->pci_len0 = pci_len0;
1001         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1002         qlcnic_get_ioaddr(ahw, offset);
1003
1004         return 0;
1005 }
1006
1007 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1008                                          int index)
1009 {
1010         struct pci_dev *pdev = adapter->pdev;
1011         unsigned short subsystem_vendor;
1012         bool ret = true;
1013
1014         subsystem_vendor = pdev->subsystem_vendor;
1015
1016         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1017             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1018                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1019                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1020                         ret = true;
1021                 else
1022                         ret = false;
1023         }
1024
1025         return ret;
1026 }
1027
1028 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1029 {
1030         struct pci_dev *pdev = adapter->pdev;
1031         int i, found = 0;
1032
1033         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1034                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1035                     qlcnic_boards[i].device == pdev->device &&
1036                     qlcnic_validate_subsystem_id(adapter, i)) {
1037                         found = 1;
1038                         break;
1039                 }
1040         }
1041
1042         if (!found)
1043                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1044         else
1045                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1046                         qlcnic_boards[i].short_name);
1047 }
1048
1049 static void
1050 qlcnic_check_options(struct qlcnic_adapter *adapter)
1051 {
1052         int err;
1053         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1054         struct pci_dev *pdev = adapter->pdev;
1055         struct qlcnic_hardware_context *ahw = adapter->ahw;
1056         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1057
1058         prev_fw_version = adapter->fw_version;
1059
1060         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1061         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1062         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1063
1064         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1065
1066         err = qlcnic_get_board_info(adapter);
1067         if (err) {
1068                 dev_err(&pdev->dev, "Error getting board config info.\n");
1069                 return;
1070         }
1071         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1072                 if (fw_dump->tmpl_hdr == NULL ||
1073                                 adapter->fw_version > prev_fw_version) {
1074                         if (fw_dump->tmpl_hdr)
1075                                 vfree(fw_dump->tmpl_hdr);
1076                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1077                                 dev_info(&pdev->dev,
1078                                         "Supports FW dump capability\n");
1079                 }
1080         }
1081
1082         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1083                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1084
1085         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1086                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1087                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1088                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1089                 } else {
1090                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1091                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1092                 }
1093
1094                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1095                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1096
1097         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1098                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1099                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1100                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1101                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1102         }
1103
1104         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1105
1106         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1107
1108         adapter->max_rds_rings = MAX_RDS_RINGS;
1109 }
1110
1111 static int
1112 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1113 {
1114         struct qlcnic_info nic_info;
1115         int err = 0;
1116
1117         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1118         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1119         if (err)
1120                 return err;
1121
1122         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1123         adapter->ahw->switch_mode = nic_info.switch_mode;
1124         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1125         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1126         adapter->ahw->capabilities = nic_info.capabilities;
1127
1128         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1129                 u32 temp;
1130                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1131                 if (err == -EIO)
1132                         return err;
1133                 adapter->ahw->extra_capability[0] = temp;
1134         }
1135         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1136         adapter->ahw->max_mtu = nic_info.max_mtu;
1137
1138         /* Disable NPAR for 83XX */
1139         if (qlcnic_83xx_check(adapter))
1140                 return err;
1141
1142         if (adapter->ahw->capabilities & BIT_6)
1143                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1144         else
1145                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1146
1147         return err;
1148 }
1149
1150 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1151                             struct qlcnic_esw_func_cfg *esw_cfg)
1152 {
1153         if (esw_cfg->discard_tagged)
1154                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1155         else
1156                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1157
1158         if (esw_cfg->vlan_id) {
1159                 adapter->rx_pvid = esw_cfg->vlan_id;
1160                 adapter->tx_pvid = esw_cfg->vlan_id;
1161         } else {
1162                 adapter->rx_pvid = 0;
1163                 adapter->tx_pvid = 0;
1164         }
1165 }
1166
1167 static int
1168 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1169 {
1170         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1171         int err;
1172
1173         if (qlcnic_sriov_vf_check(adapter)) {
1174                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1175                 if (err) {
1176                         netdev_err(netdev,
1177                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1178                                    vid, err);
1179                         return err;
1180                 }
1181         }
1182
1183         set_bit(vid, adapter->vlans);
1184         return 0;
1185 }
1186
1187 static int
1188 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1189 {
1190         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1191         int err;
1192
1193         if (qlcnic_sriov_vf_check(adapter)) {
1194                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1195                 if (err) {
1196                         netdev_err(netdev,
1197                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1198                                    vid, err);
1199                         return err;
1200                 }
1201         }
1202
1203         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1204         clear_bit(vid, adapter->vlans);
1205         return 0;
1206 }
1207
1208 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1209                                       struct qlcnic_esw_func_cfg *esw_cfg)
1210 {
1211         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1212                                 QLCNIC_PROMISC_DISABLED);
1213
1214         if (esw_cfg->mac_anti_spoof)
1215                 adapter->flags |= QLCNIC_MACSPOOF;
1216
1217         if (!esw_cfg->mac_override)
1218                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1219
1220         if (!esw_cfg->promisc_mode)
1221                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1222 }
1223
1224 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1225 {
1226         struct qlcnic_esw_func_cfg esw_cfg;
1227
1228         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1229                 return 0;
1230
1231         esw_cfg.pci_func = adapter->ahw->pci_func;
1232         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1233                         return -EIO;
1234         qlcnic_set_vlan_config(adapter, &esw_cfg);
1235         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1236         qlcnic_set_netdev_features(adapter, &esw_cfg);
1237
1238         return 0;
1239 }
1240
1241 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1242                                 struct qlcnic_esw_func_cfg *esw_cfg)
1243 {
1244         struct net_device *netdev = adapter->netdev;
1245
1246         if (qlcnic_83xx_check(adapter))
1247                 return;
1248
1249         adapter->offload_flags = esw_cfg->offload_flags;
1250         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1251         netdev_update_features(netdev);
1252         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1253 }
1254
1255 static int
1256 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1257 {
1258         u32 op_mode, priv_level;
1259         int err = 0;
1260
1261         err = qlcnic_initialize_nic(adapter);
1262         if (err)
1263                 return err;
1264
1265         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1266                 return 0;
1267
1268         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1269         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1270
1271         if (op_mode == QLC_DEV_DRV_DEFAULT)
1272                 priv_level = QLCNIC_MGMT_FUNC;
1273         else
1274                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1275
1276         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1277                 if (priv_level == QLCNIC_MGMT_FUNC) {
1278                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1279                         err = qlcnic_init_pci_info(adapter);
1280                         if (err)
1281                                 return err;
1282                         /* Set privilege level for other functions */
1283                         qlcnic_set_function_modes(adapter);
1284                         dev_info(&adapter->pdev->dev,
1285                                 "HAL Version: %d, Management function\n",
1286                                  adapter->ahw->fw_hal_version);
1287                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1288                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1289                         dev_info(&adapter->pdev->dev,
1290                                 "HAL Version: %d, Privileged function\n",
1291                                  adapter->ahw->fw_hal_version);
1292                 }
1293         }
1294
1295         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1296
1297         return err;
1298 }
1299
1300 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1301 {
1302         struct qlcnic_esw_func_cfg esw_cfg;
1303         struct qlcnic_npar_info *npar;
1304         u8 i;
1305
1306         if (adapter->need_fw_reset)
1307                 return 0;
1308
1309         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1310                 if (!adapter->npars[i].eswitch_status)
1311                         continue;
1312
1313                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1314                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1315                 esw_cfg.mac_override = BIT_0;
1316                 esw_cfg.promisc_mode = BIT_0;
1317                 if (qlcnic_82xx_check(adapter)) {
1318                         esw_cfg.offload_flags = BIT_0;
1319                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1320                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1321                 }
1322                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1323                         return -EIO;
1324                 npar = &adapter->npars[i];
1325                 npar->pvid = esw_cfg.vlan_id;
1326                 npar->mac_override = esw_cfg.mac_override;
1327                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1328                 npar->discard_tagged = esw_cfg.discard_tagged;
1329                 npar->promisc_mode = esw_cfg.promisc_mode;
1330                 npar->offload_flags = esw_cfg.offload_flags;
1331         }
1332
1333         return 0;
1334 }
1335
1336
1337 static int
1338 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1339                         struct qlcnic_npar_info *npar, int pci_func)
1340 {
1341         struct qlcnic_esw_func_cfg esw_cfg;
1342         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1343         esw_cfg.pci_func = pci_func;
1344         esw_cfg.vlan_id = npar->pvid;
1345         esw_cfg.mac_override = npar->mac_override;
1346         esw_cfg.discard_tagged = npar->discard_tagged;
1347         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1348         esw_cfg.offload_flags = npar->offload_flags;
1349         esw_cfg.promisc_mode = npar->promisc_mode;
1350         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1351                 return -EIO;
1352
1353         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1354         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1355                 return -EIO;
1356
1357         return 0;
1358 }
1359
1360 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1361 {
1362         int i, err;
1363         struct qlcnic_npar_info *npar;
1364         struct qlcnic_info nic_info;
1365         u8 pci_func;
1366
1367         if (qlcnic_82xx_check(adapter))
1368                 if (!adapter->need_fw_reset)
1369                         return 0;
1370
1371         /* Set the NPAR config data after FW reset */
1372         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1373                 npar = &adapter->npars[i];
1374                 pci_func = npar->pci_func;
1375                 if (!adapter->npars[i].eswitch_status)
1376                         continue;
1377
1378                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1379                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1380                 if (err)
1381                         return err;
1382                 nic_info.min_tx_bw = npar->min_bw;
1383                 nic_info.max_tx_bw = npar->max_bw;
1384                 err = qlcnic_set_nic_info(adapter, &nic_info);
1385                 if (err)
1386                         return err;
1387
1388                 if (npar->enable_pm) {
1389                         err = qlcnic_config_port_mirroring(adapter,
1390                                                            npar->dest_npar, 1,
1391                                                            pci_func);
1392                         if (err)
1393                                 return err;
1394                 }
1395                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1396                 if (err)
1397                         return err;
1398         }
1399         return 0;
1400 }
1401
1402 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1403 {
1404         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1405         u32 npar_state;
1406
1407         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1408                 return 0;
1409
1410         npar_state = QLC_SHARED_REG_RD32(adapter,
1411                                          QLCNIC_CRB_DEV_NPAR_STATE);
1412         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1413                 msleep(1000);
1414                 npar_state = QLC_SHARED_REG_RD32(adapter,
1415                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1416         }
1417         if (!npar_opt_timeo) {
1418                 dev_err(&adapter->pdev->dev,
1419                         "Waiting for NPAR state to operational timeout\n");
1420                 return -EIO;
1421         }
1422         return 0;
1423 }
1424
1425 static int
1426 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1427 {
1428         int err;
1429
1430         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1431             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1432                 return 0;
1433
1434         err = qlcnic_set_default_offload_settings(adapter);
1435         if (err)
1436                 return err;
1437
1438         err = qlcnic_reset_npar_config(adapter);
1439         if (err)
1440                 return err;
1441
1442         qlcnic_dev_set_npar_ready(adapter);
1443
1444         return err;
1445 }
1446
1447 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1448 {
1449         int err;
1450
1451         err = qlcnic_can_start_firmware(adapter);
1452         if (err < 0)
1453                 return err;
1454         else if (!err)
1455                 goto check_fw_status;
1456
1457         if (qlcnic_load_fw_file)
1458                 qlcnic_request_firmware(adapter);
1459         else {
1460                 err = qlcnic_check_flash_fw_ver(adapter);
1461                 if (err)
1462                         goto err_out;
1463
1464                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1465         }
1466
1467         err = qlcnic_need_fw_reset(adapter);
1468         if (err == 0)
1469                 goto check_fw_status;
1470
1471         err = qlcnic_pinit_from_rom(adapter);
1472         if (err)
1473                 goto err_out;
1474
1475         err = qlcnic_load_firmware(adapter);
1476         if (err)
1477                 goto err_out;
1478
1479         qlcnic_release_firmware(adapter);
1480         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1481
1482 check_fw_status:
1483         err = qlcnic_check_fw_status(adapter);
1484         if (err)
1485                 goto err_out;
1486
1487         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1488         qlcnic_idc_debug_info(adapter, 1);
1489         err = qlcnic_check_eswitch_mode(adapter);
1490         if (err) {
1491                 dev_err(&adapter->pdev->dev,
1492                         "Memory allocation failed for eswitch\n");
1493                 goto err_out;
1494         }
1495         err = qlcnic_set_mgmt_operations(adapter);
1496         if (err)
1497                 goto err_out;
1498
1499         qlcnic_check_options(adapter);
1500         adapter->need_fw_reset = 0;
1501
1502         qlcnic_release_firmware(adapter);
1503         return 0;
1504
1505 err_out:
1506         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1507         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1508
1509         qlcnic_release_firmware(adapter);
1510         return err;
1511 }
1512
1513 static int
1514 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1515 {
1516         irq_handler_t handler;
1517         struct qlcnic_host_sds_ring *sds_ring;
1518         struct qlcnic_host_tx_ring *tx_ring;
1519         int err, ring, num_sds_rings;
1520
1521         unsigned long flags = 0;
1522         struct net_device *netdev = adapter->netdev;
1523         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1524
1525         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1526                 if (qlcnic_82xx_check(adapter))
1527                         handler = qlcnic_tmp_intr;
1528                 else
1529                         handler = qlcnic_83xx_tmp_intr;
1530                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1531                         flags |= IRQF_SHARED;
1532
1533         } else {
1534                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1535                         handler = qlcnic_msix_intr;
1536                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1537                         handler = qlcnic_msi_intr;
1538                 else {
1539                         flags |= IRQF_SHARED;
1540                         if (qlcnic_82xx_check(adapter))
1541                                 handler = qlcnic_intr;
1542                         else
1543                                 handler = qlcnic_83xx_intr;
1544                 }
1545         }
1546         adapter->irq = netdev->irq;
1547
1548         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1549                 if (qlcnic_82xx_check(adapter) ||
1550                     (qlcnic_83xx_check(adapter) &&
1551                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1552                         num_sds_rings = adapter->max_sds_rings;
1553                         for (ring = 0; ring < num_sds_rings; ring++) {
1554                                 sds_ring = &recv_ctx->sds_rings[ring];
1555                                 if (qlcnic_82xx_check(adapter) &&
1556                                     !qlcnic_check_multi_tx(adapter) &&
1557                                     (ring == (num_sds_rings - 1))) {
1558                                         if (!(adapter->flags &
1559                                               QLCNIC_MSIX_ENABLED))
1560                                                 snprintf(sds_ring->name,
1561                                                          sizeof(sds_ring->name),
1562                                                          "qlcnic");
1563                                         else
1564                                                 snprintf(sds_ring->name,
1565                                                          sizeof(sds_ring->name),
1566                                                          "%s-tx-0-rx-%d",
1567                                                          netdev->name, ring);
1568                                 } else {
1569                                         snprintf(sds_ring->name,
1570                                                  sizeof(sds_ring->name),
1571                                                  "%s-rx-%d",
1572                                                  netdev->name, ring);
1573                                 }
1574                                 err = request_irq(sds_ring->irq, handler, flags,
1575                                                   sds_ring->name, sds_ring);
1576                                 if (err)
1577                                         return err;
1578                         }
1579                 }
1580                 if ((qlcnic_82xx_check(adapter) &&
1581                      qlcnic_check_multi_tx(adapter)) ||
1582                     (qlcnic_83xx_check(adapter) &&
1583                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1584                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1585                         handler = qlcnic_msix_tx_intr;
1586                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1587                              ring++) {
1588                                 tx_ring = &adapter->tx_ring[ring];
1589                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1590                                          "%s-tx-%d", netdev->name, ring);
1591                                 err = request_irq(tx_ring->irq, handler, flags,
1592                                                   tx_ring->name, tx_ring);
1593                                 if (err)
1594                                         return err;
1595                         }
1596                 }
1597         }
1598         return 0;
1599 }
1600
1601 static void
1602 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1603 {
1604         int ring;
1605         struct qlcnic_host_sds_ring *sds_ring;
1606         struct qlcnic_host_tx_ring *tx_ring;
1607
1608         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1609
1610         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1611                 if (qlcnic_82xx_check(adapter) ||
1612                     (qlcnic_83xx_check(adapter) &&
1613                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1614                         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1615                                 sds_ring = &recv_ctx->sds_rings[ring];
1616                                 free_irq(sds_ring->irq, sds_ring);
1617                         }
1618                 }
1619                 if ((qlcnic_83xx_check(adapter) &&
1620                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1621                     (qlcnic_82xx_check(adapter) &&
1622                      qlcnic_check_multi_tx(adapter))) {
1623                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1624                              ring++) {
1625                                 tx_ring = &adapter->tx_ring[ring];
1626                                 if (tx_ring->irq)
1627                                         free_irq(tx_ring->irq, tx_ring);
1628                         }
1629                 }
1630         }
1631 }
1632
1633 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1634 {
1635         u32 capab = 0;
1636
1637         if (qlcnic_82xx_check(adapter)) {
1638                 if (adapter->ahw->extra_capability[0] &
1639                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1640                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1641         } else {
1642                 capab = adapter->ahw->capabilities;
1643                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1644                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1645         }
1646 }
1647
1648 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1649 {
1650         int ring;
1651         struct qlcnic_host_rds_ring *rds_ring;
1652
1653         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1654                 return -EIO;
1655
1656         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1657                 return 0;
1658
1659         if (qlcnic_set_eswitch_port_config(adapter))
1660                 return -EIO;
1661
1662         qlcnic_get_lro_mss_capability(adapter);
1663
1664         if (qlcnic_fw_create_ctx(adapter))
1665                 return -EIO;
1666
1667         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1668                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1669                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1670         }
1671
1672         qlcnic_set_multi(netdev);
1673         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1674
1675         adapter->ahw->linkup = 0;
1676
1677         if (adapter->max_sds_rings > 1)
1678                 qlcnic_config_rss(adapter, 1);
1679
1680         qlcnic_config_intr_coalesce(adapter);
1681
1682         if (netdev->features & NETIF_F_LRO)
1683                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1684
1685         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1686         qlcnic_napi_enable(adapter);
1687
1688         qlcnic_linkevent_request(adapter, 1);
1689
1690         adapter->ahw->reset_context = 0;
1691         return 0;
1692 }
1693
1694 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1695 {
1696         int err = 0;
1697
1698         rtnl_lock();
1699         if (netif_running(netdev))
1700                 err = __qlcnic_up(adapter, netdev);
1701         rtnl_unlock();
1702
1703         return err;
1704 }
1705
1706 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1707 {
1708         int ring;
1709
1710         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1711                 return;
1712
1713         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1714                 return;
1715
1716         if (qlcnic_sriov_vf_check(adapter))
1717                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1718         smp_mb();
1719         netif_carrier_off(netdev);
1720         adapter->ahw->linkup = 0;
1721         netif_tx_disable(netdev);
1722
1723         qlcnic_free_mac_list(adapter);
1724
1725         if (adapter->fhash.fnum)
1726                 qlcnic_delete_lb_filters(adapter);
1727
1728         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1729
1730         qlcnic_napi_disable(adapter);
1731
1732         qlcnic_fw_destroy_ctx(adapter);
1733         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1734
1735         qlcnic_reset_rx_buffers_list(adapter);
1736
1737         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++)
1738                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1739 }
1740
1741 /* Usage: During suspend and firmware recovery module */
1742
1743 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1744 {
1745         rtnl_lock();
1746         if (netif_running(netdev))
1747                 __qlcnic_down(adapter, netdev);
1748         rtnl_unlock();
1749
1750 }
1751
1752 int
1753 qlcnic_attach(struct qlcnic_adapter *adapter)
1754 {
1755         struct net_device *netdev = adapter->netdev;
1756         struct pci_dev *pdev = adapter->pdev;
1757         int err;
1758
1759         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1760                 return 0;
1761
1762         err = qlcnic_napi_add(adapter, netdev);
1763         if (err)
1764                 return err;
1765
1766         err = qlcnic_alloc_sw_resources(adapter);
1767         if (err) {
1768                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1769                 goto err_out_napi_del;
1770         }
1771
1772         err = qlcnic_alloc_hw_resources(adapter);
1773         if (err) {
1774                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1775                 goto err_out_free_sw;
1776         }
1777
1778         err = qlcnic_request_irq(adapter);
1779         if (err) {
1780                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1781                 goto err_out_free_hw;
1782         }
1783
1784         qlcnic_create_sysfs_entries(adapter);
1785
1786         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1787         return 0;
1788
1789 err_out_free_hw:
1790         qlcnic_free_hw_resources(adapter);
1791 err_out_free_sw:
1792         qlcnic_free_sw_resources(adapter);
1793 err_out_napi_del:
1794         qlcnic_napi_del(adapter);
1795         return err;
1796 }
1797
1798 void qlcnic_detach(struct qlcnic_adapter *adapter)
1799 {
1800         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1801                 return;
1802
1803         qlcnic_remove_sysfs_entries(adapter);
1804
1805         qlcnic_free_hw_resources(adapter);
1806         qlcnic_release_rx_buffers(adapter);
1807         qlcnic_free_irq(adapter);
1808         qlcnic_napi_del(adapter);
1809         qlcnic_free_sw_resources(adapter);
1810
1811         adapter->is_up = 0;
1812 }
1813
1814 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1815 {
1816         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1817         struct qlcnic_host_sds_ring *sds_ring;
1818         int max_tx_rings = adapter->max_drv_tx_rings;
1819         int ring;
1820
1821         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1822         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1823                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1824                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1825                         qlcnic_disable_int(sds_ring);
1826                 }
1827         }
1828
1829         qlcnic_fw_destroy_ctx(adapter);
1830
1831         qlcnic_detach(adapter);
1832
1833         adapter->ahw->diag_test = 0;
1834         adapter->max_sds_rings = max_sds_rings;
1835         adapter->max_drv_tx_rings = max_tx_rings;
1836
1837         if (qlcnic_attach(adapter))
1838                 goto out;
1839
1840         if (netif_running(netdev))
1841                 __qlcnic_up(adapter, netdev);
1842 out:
1843         netif_device_attach(netdev);
1844 }
1845
1846 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1847 {
1848         struct qlcnic_hardware_context *ahw = adapter->ahw;
1849         int err = 0;
1850
1851         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1852                                 GFP_KERNEL);
1853         if (!adapter->recv_ctx) {
1854                 err = -ENOMEM;
1855                 goto err_out;
1856         }
1857         /* Initialize interrupt coalesce parameters */
1858         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1859         ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1860         ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1861         ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1862         if (qlcnic_83xx_check(adapter)) {
1863                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1864                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1865         }
1866         /* clear stats */
1867         memset(&adapter->stats, 0, sizeof(adapter->stats));
1868 err_out:
1869         return err;
1870 }
1871
1872 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1873 {
1874         kfree(adapter->recv_ctx);
1875         adapter->recv_ctx = NULL;
1876
1877         if (adapter->ahw->fw_dump.tmpl_hdr) {
1878                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1879                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1880         }
1881
1882         kfree(adapter->ahw->reset.buff);
1883         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1884 }
1885
1886 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1887 {
1888         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1889         struct qlcnic_host_sds_ring *sds_ring;
1890         struct qlcnic_host_rds_ring *rds_ring;
1891         int ring;
1892         int ret;
1893
1894         netif_device_detach(netdev);
1895
1896         if (netif_running(netdev))
1897                 __qlcnic_down(adapter, netdev);
1898
1899         qlcnic_detach(adapter);
1900
1901         adapter->max_sds_rings = 1;
1902         adapter->ahw->diag_test = test;
1903         adapter->ahw->linkup = 0;
1904         adapter->max_drv_tx_rings = 1;
1905
1906         ret = qlcnic_attach(adapter);
1907         if (ret) {
1908                 netif_device_attach(netdev);
1909                 return ret;
1910         }
1911
1912         ret = qlcnic_fw_create_ctx(adapter);
1913         if (ret) {
1914                 qlcnic_detach(adapter);
1915                 netif_device_attach(netdev);
1916                 return ret;
1917         }
1918
1919         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1920                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1921                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1922         }
1923
1924         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1925                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1926                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1927                         qlcnic_enable_int(sds_ring);
1928                 }
1929         }
1930
1931         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1932                 adapter->ahw->loopback_state = 0;
1933                 qlcnic_linkevent_request(adapter, 1);
1934         }
1935
1936         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1937
1938         return 0;
1939 }
1940
1941 /* Reset context in hardware only */
1942 static int
1943 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1944 {
1945         struct net_device *netdev = adapter->netdev;
1946
1947         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1948                 return -EBUSY;
1949
1950         netif_device_detach(netdev);
1951
1952         qlcnic_down(adapter, netdev);
1953
1954         qlcnic_up(adapter, netdev);
1955
1956         netif_device_attach(netdev);
1957
1958         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1959         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1960         return 0;
1961 }
1962
1963 int
1964 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1965 {
1966         int err = 0;
1967         struct net_device *netdev = adapter->netdev;
1968
1969         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1970                 return -EBUSY;
1971
1972         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1973
1974                 netif_device_detach(netdev);
1975
1976                 if (netif_running(netdev))
1977                         __qlcnic_down(adapter, netdev);
1978
1979                 qlcnic_detach(adapter);
1980
1981                 if (netif_running(netdev)) {
1982                         err = qlcnic_attach(adapter);
1983                         if (!err) {
1984                                 __qlcnic_up(adapter, netdev);
1985                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1986                         }
1987                 }
1988
1989                 netif_device_attach(netdev);
1990         }
1991
1992         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1993         return err;
1994 }
1995
1996 void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
1997 {
1998         struct qlcnic_hardware_context *ahw = adapter->ahw;
1999         u16 act_pci_fn = ahw->act_pci_func;
2000         u16 count;
2001
2002         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2003         if (act_pci_fn <= 2)
2004                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2005                          act_pci_fn;
2006         else
2007                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2008                          act_pci_fn;
2009         ahw->max_uc_count = count;
2010 }
2011
2012 int
2013 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2014                     int pci_using_dac)
2015 {
2016         int err;
2017         struct pci_dev *pdev = adapter->pdev;
2018
2019         adapter->rx_csum = 1;
2020         adapter->ahw->mc_enabled = 0;
2021         qlcnic_set_mac_filter_count(adapter);
2022
2023         netdev->netdev_ops         = &qlcnic_netdev_ops;
2024         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2025
2026         qlcnic_change_mtu(netdev, netdev->mtu);
2027
2028         if (qlcnic_sriov_vf_check(adapter))
2029                 SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
2030         else
2031                 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
2032
2033         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2034                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2035                              NETIF_F_HW_VLAN_CTAG_RX);
2036         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2037                                   NETIF_F_IPV6_CSUM);
2038
2039         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2040                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2041                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2042         }
2043
2044         if (pci_using_dac) {
2045                 netdev->features |= NETIF_F_HIGHDMA;
2046                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2047         }
2048
2049         if (qlcnic_vlan_tx_check(adapter))
2050                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2051
2052         if (qlcnic_sriov_vf_check(adapter))
2053                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2054
2055         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2056                 netdev->features |= NETIF_F_LRO;
2057
2058         netdev->hw_features = netdev->features;
2059         netdev->priv_flags |= IFF_UNICAST_FLT;
2060         netdev->irq = adapter->msix_entries[0].vector;
2061
2062         err = qlcnic_set_real_num_queues(adapter, netdev);
2063         if (err)
2064                 return err;
2065
2066         err = register_netdev(netdev);
2067         if (err) {
2068                 dev_err(&pdev->dev, "failed to register net device\n");
2069                 return err;
2070         }
2071
2072         qlcnic_dcb_init_dcbnl_ops(adapter);
2073
2074         return 0;
2075 }
2076
2077 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2078 {
2079         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2080                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2081                 *pci_using_dac = 1;
2082         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2083                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2084                 *pci_using_dac = 0;
2085         else {
2086                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2087                 return -EIO;
2088         }
2089
2090         return 0;
2091 }
2092
2093 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2094 {
2095         int ring;
2096         struct qlcnic_host_tx_ring *tx_ring;
2097
2098         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
2099                 tx_ring = &adapter->tx_ring[ring];
2100                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
2101                         vfree(tx_ring->cmd_buf_arr);
2102                         tx_ring->cmd_buf_arr = NULL;
2103                 }
2104         }
2105         if (adapter->tx_ring != NULL)
2106                 kfree(adapter->tx_ring);
2107 }
2108
2109 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2110                           struct net_device *netdev)
2111 {
2112         int ring, vector, index;
2113         struct qlcnic_host_tx_ring *tx_ring;
2114         struct qlcnic_cmd_buffer *cmd_buf_arr;
2115
2116         tx_ring = kcalloc(adapter->max_drv_tx_rings,
2117                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2118         if (tx_ring == NULL)
2119                 return -ENOMEM;
2120
2121         adapter->tx_ring = tx_ring;
2122
2123         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
2124                 tx_ring = &adapter->tx_ring[ring];
2125                 tx_ring->num_desc = adapter->num_txd;
2126                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2127                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2128                 if (cmd_buf_arr == NULL) {
2129                         qlcnic_free_tx_rings(adapter);
2130                         return -ENOMEM;
2131                 }
2132                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
2133                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2134         }
2135
2136         if (qlcnic_83xx_check(adapter) ||
2137             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2138                 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
2139                         tx_ring = &adapter->tx_ring[ring];
2140                         tx_ring->adapter = adapter;
2141                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2142                                 index = adapter->max_sds_rings + ring;
2143                                 vector = adapter->msix_entries[index].vector;
2144                                 tx_ring->irq = vector;
2145                         }
2146                 }
2147         }
2148
2149         return 0;
2150 }
2151
2152 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2153 {
2154         struct qlcnic_hardware_context *ahw = adapter->ahw;
2155         u32 fw_cmd = 0;
2156
2157         if (qlcnic_82xx_check(adapter))
2158                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2159         else if (qlcnic_83xx_check(adapter))
2160                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2161
2162         if ((ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) &&
2163             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER))
2164                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2165 }
2166
2167 static int qlcnic_register_dcb(struct qlcnic_adapter *adapter)
2168 {
2169         return __qlcnic_register_dcb(adapter);
2170 }
2171
2172 void qlcnic_clear_dcb_ops(struct qlcnic_adapter *adapter)
2173 {
2174         kfree(adapter->dcb);
2175         adapter->dcb = NULL;
2176 }
2177
2178 static int
2179 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2180 {
2181         struct net_device *netdev = NULL;
2182         struct qlcnic_adapter *adapter = NULL;
2183         struct qlcnic_hardware_context *ahw;
2184         int err, pci_using_dac = -1;
2185         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2186
2187         if (pdev->is_virtfn)
2188                 return -ENODEV;
2189
2190         err = pci_enable_device(pdev);
2191         if (err)
2192                 return err;
2193
2194         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2195                 err = -ENODEV;
2196                 goto err_out_disable_pdev;
2197         }
2198
2199         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2200         if (err)
2201                 goto err_out_disable_pdev;
2202
2203         err = pci_request_regions(pdev, qlcnic_driver_name);
2204         if (err)
2205                 goto err_out_disable_pdev;
2206
2207         pci_set_master(pdev);
2208         pci_enable_pcie_error_reporting(pdev);
2209
2210         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2211         if (!ahw) {
2212                 err = -ENOMEM;
2213                 goto err_out_free_res;
2214         }
2215
2216         switch (ent->device) {
2217         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2218                 ahw->hw_ops = &qlcnic_hw_ops;
2219                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2220                 break;
2221         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2222         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2223                 qlcnic_83xx_register_map(ahw);
2224                 break;
2225         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2226         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2227                 qlcnic_sriov_vf_register_map(ahw);
2228                 break;
2229         default:
2230                 goto err_out_free_hw_res;
2231         }
2232
2233         err = qlcnic_setup_pci_map(pdev, ahw);
2234         if (err)
2235                 goto err_out_free_hw_res;
2236
2237         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2238                                    QLCNIC_MAX_TX_RINGS);
2239         if (!netdev) {
2240                 err = -ENOMEM;
2241                 goto err_out_iounmap;
2242         }
2243
2244         SET_NETDEV_DEV(netdev, &pdev->dev);
2245
2246         adapter = netdev_priv(netdev);
2247         adapter->netdev  = netdev;
2248         adapter->pdev    = pdev;
2249         adapter->ahw = ahw;
2250
2251         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2252         if (adapter->qlcnic_wq == NULL) {
2253                 err = -ENOMEM;
2254                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2255                 goto err_out_free_netdev;
2256         }
2257
2258         err = qlcnic_alloc_adapter_resources(adapter);
2259         if (err)
2260                 goto err_out_free_wq;
2261
2262         adapter->dev_rst_time = jiffies;
2263         adapter->ahw->revision_id = pdev->revision;
2264         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2265                 adapter->fdb_mac_learn = true;
2266         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2267                 adapter->drv_mac_learn = true;
2268
2269         rwlock_init(&adapter->ahw->crb_lock);
2270         mutex_init(&adapter->ahw->mem_lock);
2271
2272         INIT_LIST_HEAD(&adapter->mac_list);
2273
2274         qlcnic_register_dcb(adapter);
2275
2276         if (qlcnic_82xx_check(adapter)) {
2277                 qlcnic_check_vf(adapter, ent);
2278                 adapter->portnum = adapter->ahw->pci_func;
2279                 err = qlcnic_start_firmware(adapter);
2280                 if (err) {
2281                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2282                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2283                         goto err_out_maintenance_mode;
2284                 }
2285
2286                 qlcnic_get_multiq_capability(adapter);
2287
2288                 if ((adapter->ahw->act_pci_func > 2) &&
2289                     qlcnic_check_multi_tx(adapter)) {
2290                         adapter->max_drv_tx_rings = QLCNIC_DEF_NUM_TX_RINGS;
2291                         dev_info(&adapter->pdev->dev,
2292                                  "vNIC mode enabled, Set max TX rings = %d\n",
2293                                  adapter->max_drv_tx_rings);
2294                 }
2295
2296                 if (!qlcnic_check_multi_tx(adapter)) {
2297                         clear_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
2298                         adapter->max_drv_tx_rings = 1;
2299                 }
2300                 err = qlcnic_setup_idc_param(adapter);
2301                 if (err)
2302                         goto err_out_free_hw;
2303
2304                 adapter->flags |= QLCNIC_NEED_FLR;
2305
2306                 if (adapter->dcb && qlcnic_dcb_attach(adapter))
2307                         qlcnic_clear_dcb_ops(adapter);
2308
2309         } else if (qlcnic_83xx_check(adapter)) {
2310                 adapter->max_drv_tx_rings = 1;
2311                 qlcnic_83xx_check_vf(adapter, ent);
2312                 adapter->portnum = adapter->ahw->pci_func;
2313                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2314                 if (err) {
2315                         dev_err(&pdev->dev, "%s: failed\n", __func__);
2316                         goto err_out_free_hw;
2317                 }
2318                 if (qlcnic_sriov_vf_check(adapter))
2319                         return 0;
2320         } else {
2321                 dev_err(&pdev->dev,
2322                         "%s: failed. Please Reboot\n", __func__);
2323                 goto err_out_free_hw;
2324         }
2325
2326         if (qlcnic_read_mac_addr(adapter))
2327                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2328
2329         qlcnic_read_phys_port_id(adapter);
2330
2331         if (adapter->portnum == 0) {
2332                 qlcnic_get_board_name(adapter, board_name);
2333
2334                 pr_info("%s: %s Board Chip rev 0x%x\n",
2335                         module_name(THIS_MODULE),
2336                         board_name, adapter->ahw->revision_id);
2337         }
2338
2339         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2340             !!qlcnic_use_msi)
2341                 dev_warn(&pdev->dev,
2342                          "Device does not support MSI interrupts\n");
2343
2344         if (qlcnic_82xx_check(adapter)) {
2345                 err = qlcnic_setup_intr(adapter, 0, 0);
2346                 if (err) {
2347                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2348                         goto err_out_disable_msi;
2349                 }
2350         }
2351
2352         err = qlcnic_get_act_pci_func(adapter);
2353         if (err)
2354                 goto err_out_disable_mbx_intr;
2355
2356         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2357         if (err)
2358                 goto err_out_disable_mbx_intr;
2359
2360         if (adapter->portnum == 0)
2361                 qlcnic_set_drv_version(adapter);
2362
2363         pci_set_drvdata(pdev, adapter);
2364
2365         if (qlcnic_82xx_check(adapter))
2366                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2367                                      FW_POLL_DELAY);
2368
2369         switch (adapter->ahw->port_type) {
2370         case QLCNIC_GBE:
2371                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2372                                 adapter->netdev->name);
2373                 break;
2374         case QLCNIC_XGBE:
2375                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2376                                 adapter->netdev->name);
2377                 break;
2378         }
2379
2380         if (adapter->drv_mac_learn)
2381                 qlcnic_alloc_lb_filters_mem(adapter);
2382
2383         qlcnic_add_sysfs(adapter);
2384
2385         return 0;
2386
2387 err_out_disable_mbx_intr:
2388         if (qlcnic_83xx_check(adapter))
2389                 qlcnic_83xx_free_mbx_intr(adapter);
2390
2391 err_out_disable_msi:
2392         qlcnic_teardown_intr(adapter);
2393         qlcnic_cancel_idc_work(adapter);
2394         qlcnic_clr_all_drv_state(adapter, 0);
2395
2396 err_out_free_hw:
2397         qlcnic_free_adapter_resources(adapter);
2398
2399 err_out_free_wq:
2400         destroy_workqueue(adapter->qlcnic_wq);
2401
2402 err_out_free_netdev:
2403         free_netdev(netdev);
2404
2405 err_out_iounmap:
2406         qlcnic_cleanup_pci_map(ahw);
2407
2408 err_out_free_hw_res:
2409         kfree(ahw);
2410
2411 err_out_free_res:
2412         pci_release_regions(pdev);
2413
2414 err_out_disable_pdev:
2415         pci_set_drvdata(pdev, NULL);
2416         pci_disable_device(pdev);
2417         return err;
2418
2419 err_out_maintenance_mode:
2420         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2421         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops);
2422         err = register_netdev(netdev);
2423
2424         if (err) {
2425                 dev_err(&pdev->dev, "Failed to register net device\n");
2426                 qlcnic_clr_all_drv_state(adapter, 0);
2427                 goto err_out_free_hw;
2428         }
2429
2430         pci_set_drvdata(pdev, adapter);
2431         qlcnic_add_sysfs(adapter);
2432
2433         return 0;
2434 }
2435
2436 static void qlcnic_remove(struct pci_dev *pdev)
2437 {
2438         struct qlcnic_adapter *adapter;
2439         struct net_device *netdev;
2440         struct qlcnic_hardware_context *ahw;
2441
2442         adapter = pci_get_drvdata(pdev);
2443         if (adapter == NULL)
2444                 return;
2445
2446         netdev = adapter->netdev;
2447         qlcnic_sriov_pf_disable(adapter);
2448
2449         qlcnic_cancel_idc_work(adapter);
2450         ahw = adapter->ahw;
2451
2452         qlcnic_dcb_free(adapter);
2453
2454         unregister_netdev(netdev);
2455         qlcnic_sriov_cleanup(adapter);
2456
2457         if (qlcnic_83xx_check(adapter)) {
2458                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2459                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2460                 qlcnic_83xx_free_mbx_intr(adapter);
2461                 qlcnic_83xx_detach_mailbox_work(adapter);
2462                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2463                 kfree(ahw->fw_info);
2464         }
2465
2466         qlcnic_detach(adapter);
2467
2468         if (adapter->npars != NULL)
2469                 kfree(adapter->npars);
2470         if (adapter->eswitch != NULL)
2471                 kfree(adapter->eswitch);
2472
2473         if (qlcnic_82xx_check(adapter))
2474                 qlcnic_clr_all_drv_state(adapter, 0);
2475
2476         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2477
2478         qlcnic_free_lb_filters_mem(adapter);
2479
2480         qlcnic_teardown_intr(adapter);
2481
2482         qlcnic_remove_sysfs(adapter);
2483
2484         qlcnic_cleanup_pci_map(adapter->ahw);
2485
2486         qlcnic_release_firmware(adapter);
2487
2488         pci_disable_pcie_error_reporting(pdev);
2489         pci_release_regions(pdev);
2490         pci_disable_device(pdev);
2491         pci_set_drvdata(pdev, NULL);
2492
2493         if (adapter->qlcnic_wq) {
2494                 destroy_workqueue(adapter->qlcnic_wq);
2495                 adapter->qlcnic_wq = NULL;
2496         }
2497
2498         qlcnic_free_adapter_resources(adapter);
2499         kfree(ahw);
2500         free_netdev(netdev);
2501 }
2502
2503 static void qlcnic_shutdown(struct pci_dev *pdev)
2504 {
2505         if (__qlcnic_shutdown(pdev))
2506                 return;
2507
2508         pci_disable_device(pdev);
2509 }
2510
2511 #ifdef CONFIG_PM
2512 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2513 {
2514         int retval;
2515
2516         retval = __qlcnic_shutdown(pdev);
2517         if (retval)
2518                 return retval;
2519
2520         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2521         return 0;
2522 }
2523
2524 static int qlcnic_resume(struct pci_dev *pdev)
2525 {
2526         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2527         int err;
2528
2529         err = pci_enable_device(pdev);
2530         if (err)
2531                 return err;
2532
2533         pci_set_power_state(pdev, PCI_D0);
2534         pci_set_master(pdev);
2535         pci_restore_state(pdev);
2536
2537         return  __qlcnic_resume(adapter);
2538 }
2539 #endif
2540
2541 static int qlcnic_open(struct net_device *netdev)
2542 {
2543         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2544         u32 state;
2545         int err;
2546
2547         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2548         if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) {
2549                 netdev_err(netdev, "%s: Device is in FAILED state\n", __func__);
2550
2551                 return -EIO;
2552         }
2553
2554         netif_carrier_off(netdev);
2555
2556         err = qlcnic_attach(adapter);
2557         if (err)
2558                 return err;
2559
2560         err = __qlcnic_up(adapter, netdev);
2561         if (err)
2562                 goto err_out;
2563
2564         netif_tx_start_all_queues(netdev);
2565
2566         return 0;
2567
2568 err_out:
2569         qlcnic_detach(adapter);
2570         return err;
2571 }
2572
2573 /*
2574  * qlcnic_close - Disables a network interface entry point
2575  */
2576 static int qlcnic_close(struct net_device *netdev)
2577 {
2578         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2579
2580         __qlcnic_down(adapter, netdev);
2581
2582         return 0;
2583 }
2584
2585 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2586 {
2587         void *head;
2588         int i;
2589         struct net_device *netdev = adapter->netdev;
2590         u32 filter_size = 0;
2591         u16 act_pci_func = 0;
2592
2593         if (adapter->fhash.fmax && adapter->fhash.fhead)
2594                 return;
2595
2596         act_pci_func = adapter->ahw->act_pci_func;
2597         spin_lock_init(&adapter->mac_learn_lock);
2598         spin_lock_init(&adapter->rx_mac_learn_lock);
2599
2600         if (qlcnic_82xx_check(adapter)) {
2601                 filter_size = QLCNIC_LB_MAX_FILTERS;
2602                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2603         } else {
2604                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2605                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2606         }
2607
2608         head = kcalloc(adapter->fhash.fbucket_size,
2609                        sizeof(struct hlist_head), GFP_ATOMIC);
2610
2611         if (!head)
2612                 return;
2613
2614         adapter->fhash.fmax = (filter_size / act_pci_func);
2615         adapter->fhash.fhead = head;
2616
2617         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2618                     act_pci_func, adapter->fhash.fmax);
2619
2620         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2621                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2622
2623         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2624
2625         head = kcalloc(adapter->rx_fhash.fbucket_size,
2626                        sizeof(struct hlist_head), GFP_ATOMIC);
2627
2628         if (!head)
2629                 return;
2630
2631         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2632         adapter->rx_fhash.fhead = head;
2633
2634         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2635                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2636 }
2637
2638 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2639 {
2640         if (adapter->fhash.fmax && adapter->fhash.fhead)
2641                 kfree(adapter->fhash.fhead);
2642
2643         adapter->fhash.fhead = NULL;
2644         adapter->fhash.fmax = 0;
2645
2646         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2647                 kfree(adapter->rx_fhash.fhead);
2648
2649         adapter->rx_fhash.fmax = 0;
2650         adapter->rx_fhash.fhead = NULL;
2651 }
2652
2653 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2654 {
2655         struct net_device *netdev = adapter->netdev;
2656         u32 temp_state, temp_val, temp = 0;
2657         int rv = 0;
2658
2659         if (qlcnic_83xx_check(adapter))
2660                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2661
2662         if (qlcnic_82xx_check(adapter))
2663                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2664
2665         temp_state = qlcnic_get_temp_state(temp);
2666         temp_val = qlcnic_get_temp_val(temp);
2667
2668         if (temp_state == QLCNIC_TEMP_PANIC) {
2669                 dev_err(&netdev->dev,
2670                        "Device temperature %d degrees C exceeds"
2671                        " maximum allowed. Hardware has been shut down.\n",
2672                        temp_val);
2673                 rv = 1;
2674         } else if (temp_state == QLCNIC_TEMP_WARN) {
2675                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2676                         dev_err(&netdev->dev,
2677                                "Device temperature %d degrees C "
2678                                "exceeds operating range."
2679                                " Immediate action needed.\n",
2680                                temp_val);
2681                 }
2682         } else {
2683                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2684                         dev_info(&netdev->dev,
2685                                "Device temperature is now %d degrees C"
2686                                " in normal range.\n", temp_val);
2687                 }
2688         }
2689         adapter->ahw->temp = temp_state;
2690         return rv;
2691 }
2692
2693 static void qlcnic_tx_timeout(struct net_device *netdev)
2694 {
2695         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2696         struct qlcnic_host_tx_ring *tx_ring;
2697         int ring;
2698
2699         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2700                 return;
2701
2702         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
2703                 netdev_info(netdev, "Tx timeout, reset the adapter.\n");
2704                 if (qlcnic_82xx_check(adapter))
2705                         adapter->need_fw_reset = 1;
2706                 else if (qlcnic_83xx_check(adapter))
2707                         qlcnic_83xx_idc_request_reset(adapter,
2708                                                       QLCNIC_FORCE_FW_DUMP_KEY);
2709         } else {
2710                 netdev_info(netdev, "Tx timeout, reset adapter context.\n");
2711                 if (qlcnic_82xx_check(adapter)) {
2712                         for (ring = 0; ring < adapter->max_drv_tx_rings;
2713                              ring++) {
2714                                 tx_ring = &adapter->tx_ring[ring];
2715                                 dev_info(&netdev->dev, "ring=%d\n", ring);
2716                                 dev_info(&netdev->dev, "crb_intr_mask=%d\n",
2717                                          readl(tx_ring->crb_intr_mask));
2718                                 dev_info(&netdev->dev, "producer=%d\n",
2719                                          readl(tx_ring->crb_cmd_producer));
2720                                 dev_info(&netdev->dev, "sw_consumer = %d\n",
2721                                          tx_ring->sw_consumer);
2722                                 dev_info(&netdev->dev, "hw_consumer = %d\n",
2723                                          le32_to_cpu(*(tx_ring->hw_consumer)));
2724                                 dev_info(&netdev->dev, "xmit-on=%llu\n",
2725                                          tx_ring->xmit_on);
2726                                 dev_info(&netdev->dev, "xmit-off=%llu\n",
2727                                          tx_ring->xmit_off);
2728                         }
2729                 }
2730                 adapter->ahw->reset_context = 1;
2731         }
2732 }
2733
2734 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2735 {
2736         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2737         struct net_device_stats *stats = &netdev->stats;
2738
2739         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2740         stats->tx_packets = adapter->stats.xmitfinished;
2741         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2742         stats->tx_bytes = adapter->stats.txbytes;
2743         stats->rx_dropped = adapter->stats.rxdropped;
2744         stats->tx_dropped = adapter->stats.txdropped;
2745
2746         return stats;
2747 }
2748
2749 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2750 {
2751         u32 status;
2752
2753         status = readl(adapter->isr_int_vec);
2754
2755         if (!(status & adapter->ahw->int_vec_bit))
2756                 return IRQ_NONE;
2757
2758         /* check interrupt state machine, to be sure */
2759         status = readl(adapter->crb_int_state_reg);
2760         if (!ISR_LEGACY_INT_TRIGGERED(status))
2761                 return IRQ_NONE;
2762
2763         writel(0xffffffff, adapter->tgt_status_reg);
2764         /* read twice to ensure write is flushed */
2765         readl(adapter->isr_int_vec);
2766         readl(adapter->isr_int_vec);
2767
2768         return IRQ_HANDLED;
2769 }
2770
2771 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2772 {
2773         struct qlcnic_host_sds_ring *sds_ring = data;
2774         struct qlcnic_adapter *adapter = sds_ring->adapter;
2775
2776         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2777                 goto done;
2778         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2779                 writel(0xffffffff, adapter->tgt_status_reg);
2780                 goto done;
2781         }
2782
2783         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2784                 return IRQ_NONE;
2785
2786 done:
2787         adapter->ahw->diag_cnt++;
2788         qlcnic_enable_int(sds_ring);
2789         return IRQ_HANDLED;
2790 }
2791
2792 static irqreturn_t qlcnic_intr(int irq, void *data)
2793 {
2794         struct qlcnic_host_sds_ring *sds_ring = data;
2795         struct qlcnic_adapter *adapter = sds_ring->adapter;
2796
2797         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2798                 return IRQ_NONE;
2799
2800         napi_schedule(&sds_ring->napi);
2801
2802         return IRQ_HANDLED;
2803 }
2804
2805 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2806 {
2807         struct qlcnic_host_sds_ring *sds_ring = data;
2808         struct qlcnic_adapter *adapter = sds_ring->adapter;
2809
2810         /* clear interrupt */
2811         writel(0xffffffff, adapter->tgt_status_reg);
2812
2813         napi_schedule(&sds_ring->napi);
2814         return IRQ_HANDLED;
2815 }
2816
2817 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2818 {
2819         struct qlcnic_host_sds_ring *sds_ring = data;
2820
2821         napi_schedule(&sds_ring->napi);
2822         return IRQ_HANDLED;
2823 }
2824
2825 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2826 {
2827         struct qlcnic_host_tx_ring *tx_ring = data;
2828
2829         napi_schedule(&tx_ring->napi);
2830         return IRQ_HANDLED;
2831 }
2832
2833 #ifdef CONFIG_NET_POLL_CONTROLLER
2834 static void qlcnic_poll_controller(struct net_device *netdev)
2835 {
2836         int ring;
2837         struct qlcnic_host_sds_ring *sds_ring;
2838         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2839         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2840
2841         disable_irq(adapter->irq);
2842         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2843                 sds_ring = &recv_ctx->sds_rings[ring];
2844                 qlcnic_intr(adapter->irq, sds_ring);
2845         }
2846         enable_irq(adapter->irq);
2847 }
2848 #endif
2849
2850 static void
2851 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2852 {
2853         u32 val;
2854
2855         val = adapter->portnum & 0xf;
2856         val |= encoding << 7;
2857         val |= (jiffies - adapter->dev_rst_time) << 8;
2858
2859         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2860         adapter->dev_rst_time = jiffies;
2861 }
2862
2863 static int
2864 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2865 {
2866         u32  val;
2867
2868         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2869                         state != QLCNIC_DEV_NEED_QUISCENT);
2870
2871         if (qlcnic_api_lock(adapter))
2872                 return -EIO;
2873
2874         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2875
2876         if (state == QLCNIC_DEV_NEED_RESET)
2877                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2878         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2879                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2880
2881         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2882
2883         qlcnic_api_unlock(adapter);
2884
2885         return 0;
2886 }
2887
2888 static int
2889 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2890 {
2891         u32  val;
2892
2893         if (qlcnic_api_lock(adapter))
2894                 return -EBUSY;
2895
2896         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2897         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2898         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2899
2900         qlcnic_api_unlock(adapter);
2901
2902         return 0;
2903 }
2904
2905 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2906 {
2907         u32  val;
2908
2909         if (qlcnic_api_lock(adapter))
2910                 goto err;
2911
2912         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2913         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2914         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2915
2916         if (failed) {
2917                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2918                                     QLCNIC_DEV_FAILED);
2919                 dev_info(&adapter->pdev->dev,
2920                                 "Device state set to Failed. Please Reboot\n");
2921         } else if (!(val & 0x11111111))
2922                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2923                                     QLCNIC_DEV_COLD);
2924
2925         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2926         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2927         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2928
2929         qlcnic_api_unlock(adapter);
2930 err:
2931         adapter->fw_fail_cnt = 0;
2932         adapter->flags &= ~QLCNIC_FW_HANG;
2933         clear_bit(__QLCNIC_START_FW, &adapter->state);
2934         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2935 }
2936
2937 /* Grab api lock, before checking state */
2938 static int
2939 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2940 {
2941         int act, state, active_mask;
2942         struct qlcnic_hardware_context *ahw = adapter->ahw;
2943
2944         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2945         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2946
2947         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2948                 active_mask = (~(1 << (ahw->pci_func * 4)));
2949                 act = act & active_mask;
2950         }
2951
2952         if (((state & 0x11111111) == (act & 0x11111111)) ||
2953                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2954                 return 0;
2955         else
2956                 return 1;
2957 }
2958
2959 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2960 {
2961         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2962
2963         if (val != QLCNIC_DRV_IDC_VER) {
2964                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2965                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2966         }
2967
2968         return 0;
2969 }
2970
2971 static int
2972 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2973 {
2974         u32 val, prev_state;
2975         u8 dev_init_timeo = adapter->dev_init_timeo;
2976         u8 portnum = adapter->portnum;
2977         u8 ret;
2978
2979         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2980                 return 1;
2981
2982         if (qlcnic_api_lock(adapter))
2983                 return -1;
2984
2985         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2986         if (!(val & (1 << (portnum * 4)))) {
2987                 QLC_DEV_SET_REF_CNT(val, portnum);
2988                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2989         }
2990
2991         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2992         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2993
2994         switch (prev_state) {
2995         case QLCNIC_DEV_COLD:
2996                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2997                                     QLCNIC_DEV_INITIALIZING);
2998                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2999                                     QLCNIC_DRV_IDC_VER);
3000                 qlcnic_idc_debug_info(adapter, 0);
3001                 qlcnic_api_unlock(adapter);
3002                 return 1;
3003
3004         case QLCNIC_DEV_READY:
3005                 ret = qlcnic_check_idc_ver(adapter);
3006                 qlcnic_api_unlock(adapter);
3007                 return ret;
3008
3009         case QLCNIC_DEV_NEED_RESET:
3010                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3011                 QLC_DEV_SET_RST_RDY(val, portnum);
3012                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3013                 break;
3014
3015         case QLCNIC_DEV_NEED_QUISCENT:
3016                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3017                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3018                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3019                 break;
3020
3021         case QLCNIC_DEV_FAILED:
3022                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3023                 qlcnic_api_unlock(adapter);
3024                 return -1;
3025
3026         case QLCNIC_DEV_INITIALIZING:
3027         case QLCNIC_DEV_QUISCENT:
3028                 break;
3029         }
3030
3031         qlcnic_api_unlock(adapter);
3032
3033         do {
3034                 msleep(1000);
3035                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3036
3037                 if (prev_state == QLCNIC_DEV_QUISCENT)
3038                         continue;
3039         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3040
3041         if (!dev_init_timeo) {
3042                 dev_err(&adapter->pdev->dev,
3043                         "Waiting for device to initialize timeout\n");
3044                 return -1;
3045         }
3046
3047         if (qlcnic_api_lock(adapter))
3048                 return -1;
3049
3050         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3051         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3052         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3053
3054         ret = qlcnic_check_idc_ver(adapter);
3055         qlcnic_api_unlock(adapter);
3056
3057         return ret;
3058 }
3059
3060 static void
3061 qlcnic_fwinit_work(struct work_struct *work)
3062 {
3063         struct qlcnic_adapter *adapter = container_of(work,
3064                         struct qlcnic_adapter, fw_work.work);
3065         u32 dev_state = 0xf;
3066         u32 val;
3067
3068         if (qlcnic_api_lock(adapter))
3069                 goto err_ret;
3070
3071         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3072         if (dev_state == QLCNIC_DEV_QUISCENT ||
3073             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3074                 qlcnic_api_unlock(adapter);
3075                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3076                                                 FW_POLL_DELAY * 2);
3077                 return;
3078         }
3079
3080         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3081                 qlcnic_api_unlock(adapter);
3082                 goto wait_npar;
3083         }
3084
3085         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3086             dev_state == QLCNIC_DEV_READY) {
3087                 dev_info(&adapter->pdev->dev, "Detected state change from "
3088                                 "DEV_NEED_RESET, skipping ack check\n");
3089                 goto skip_ack_check;
3090         }
3091
3092         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3093                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3094                                         adapter->reset_ack_timeo);
3095                 goto skip_ack_check;
3096         }
3097
3098         if (!qlcnic_check_drv_state(adapter)) {
3099 skip_ack_check:
3100                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3101
3102                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3103                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3104                                             QLCNIC_DEV_INITIALIZING);
3105                         set_bit(__QLCNIC_START_FW, &adapter->state);
3106                         QLCDB(adapter, DRV, "Restarting fw\n");
3107                         qlcnic_idc_debug_info(adapter, 0);
3108                         val = QLC_SHARED_REG_RD32(adapter,
3109                                                   QLCNIC_CRB_DRV_STATE);
3110                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3111                         QLC_SHARED_REG_WR32(adapter,
3112                                             QLCNIC_CRB_DRV_STATE, val);
3113                 }
3114
3115                 qlcnic_api_unlock(adapter);
3116
3117                 rtnl_lock();
3118                 if (qlcnic_check_fw_dump_state(adapter) &&
3119                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3120                         QLCDB(adapter, DRV, "Take FW dump\n");
3121                         qlcnic_dump_fw(adapter);
3122                         adapter->flags |= QLCNIC_FW_HANG;
3123                 }
3124                 rtnl_unlock();
3125
3126                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3127                 if (!adapter->nic_ops->start_firmware(adapter)) {
3128                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3129                         adapter->fw_wait_cnt = 0;
3130                         return;
3131                 }
3132                 goto err_ret;
3133         }
3134
3135         qlcnic_api_unlock(adapter);
3136
3137 wait_npar:
3138         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3139         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3140
3141         switch (dev_state) {
3142         case QLCNIC_DEV_READY:
3143                 if (!qlcnic_start_firmware(adapter)) {
3144                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3145                         adapter->fw_wait_cnt = 0;
3146                         return;
3147                 }
3148         case QLCNIC_DEV_FAILED:
3149                 break;
3150         default:
3151                 qlcnic_schedule_work(adapter,
3152                         qlcnic_fwinit_work, FW_POLL_DELAY);
3153                 return;
3154         }
3155
3156 err_ret:
3157         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3158                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3159         netif_device_attach(adapter->netdev);
3160         qlcnic_clr_all_drv_state(adapter, 0);
3161 }
3162
3163 static void
3164 qlcnic_detach_work(struct work_struct *work)
3165 {
3166         struct qlcnic_adapter *adapter = container_of(work,
3167                         struct qlcnic_adapter, fw_work.work);
3168         struct net_device *netdev = adapter->netdev;
3169         u32 status;
3170
3171         netif_device_detach(netdev);
3172
3173         /* Dont grab rtnl lock during Quiscent mode */
3174         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3175                 if (netif_running(netdev))
3176                         __qlcnic_down(adapter, netdev);
3177         } else
3178                 qlcnic_down(adapter, netdev);
3179
3180         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3181
3182         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3183                 dev_err(&adapter->pdev->dev,
3184                         "Detaching the device: peg halt status1=0x%x\n",
3185                                         status);
3186
3187                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3188                         dev_err(&adapter->pdev->dev,
3189                         "On board active cooling fan failed. "
3190                                 "Device has been halted.\n");
3191                         dev_err(&adapter->pdev->dev,
3192                                 "Replace the adapter.\n");
3193                 }
3194
3195                 goto err_ret;
3196         }
3197
3198         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3199                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3200                         adapter->ahw->temp);
3201                 goto err_ret;
3202         }
3203
3204         /* Dont ack if this instance is the reset owner */
3205         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3206                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3207                         dev_err(&adapter->pdev->dev,
3208                                 "Failed to set driver state,"
3209                                         "detaching the device.\n");
3210                         goto err_ret;
3211                 }
3212         }
3213
3214         adapter->fw_wait_cnt = 0;
3215
3216         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3217
3218         return;
3219
3220 err_ret:
3221         netif_device_attach(netdev);
3222         qlcnic_clr_all_drv_state(adapter, 1);
3223 }
3224
3225 /*Transit NPAR state to NON Operational */
3226 static void
3227 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3228 {
3229         u32 state;
3230
3231         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3232         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3233                 return;
3234
3235         if (qlcnic_api_lock(adapter))
3236                 return;
3237         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3238                             QLCNIC_DEV_NPAR_NON_OPER);
3239         qlcnic_api_unlock(adapter);
3240 }
3241
3242 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
3243 {
3244         u32 state, xg_val = 0, gb_val = 0;
3245
3246         qlcnic_xg_set_xg0_mask(xg_val);
3247         qlcnic_xg_set_xg1_mask(xg_val);
3248         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3249         qlcnic_gb_set_gb0_mask(gb_val);
3250         qlcnic_gb_set_gb1_mask(gb_val);
3251         qlcnic_gb_set_gb2_mask(gb_val);
3252         qlcnic_gb_set_gb3_mask(gb_val);
3253         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3254         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3255                                 " on all ports\n");
3256         adapter->need_fw_reset = 1;
3257
3258         if (qlcnic_api_lock(adapter))
3259                 return;
3260
3261         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3262         if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) {
3263                 netdev_err(adapter->netdev, "%s: Device is in FAILED state\n",
3264                            __func__);
3265                 qlcnic_api_unlock(adapter);
3266
3267                 return;
3268         }
3269
3270         if (state == QLCNIC_DEV_READY) {
3271                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3272                                     QLCNIC_DEV_NEED_RESET);
3273                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3274                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3275                 qlcnic_idc_debug_info(adapter, 0);
3276         }
3277
3278         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3279                             QLCNIC_DEV_NPAR_NON_OPER);
3280         qlcnic_api_unlock(adapter);
3281 }
3282
3283 /* Transit to NPAR READY state from NPAR NOT READY state */
3284 static void
3285 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3286 {
3287         if (qlcnic_api_lock(adapter))
3288                 return;
3289
3290         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3291                             QLCNIC_DEV_NPAR_OPER);
3292         QLCDB(adapter, DRV, "NPAR operational state set\n");
3293
3294         qlcnic_api_unlock(adapter);
3295 }
3296
3297 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3298                           work_func_t func, int delay)
3299 {
3300         if (test_bit(__QLCNIC_AER, &adapter->state))
3301                 return;
3302
3303         INIT_DELAYED_WORK(&adapter->fw_work, func);
3304         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3305                            round_jiffies_relative(delay));
3306 }
3307
3308 static void
3309 qlcnic_attach_work(struct work_struct *work)
3310 {
3311         struct qlcnic_adapter *adapter = container_of(work,
3312                                 struct qlcnic_adapter, fw_work.work);
3313         struct net_device *netdev = adapter->netdev;
3314         u32 npar_state;
3315
3316         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3317                 npar_state = QLC_SHARED_REG_RD32(adapter,
3318                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3319                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3320                         qlcnic_clr_all_drv_state(adapter, 0);
3321                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3322                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3323                                                         FW_POLL_DELAY);
3324                 else
3325                         goto attach;
3326                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3327                 return;
3328         }
3329 attach:
3330         qlcnic_dcb_get_info(adapter);
3331
3332         if (netif_running(netdev)) {
3333                 if (qlcnic_up(adapter, netdev))
3334                         goto done;
3335
3336                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3337         }
3338
3339 done:
3340         netif_device_attach(netdev);
3341         adapter->fw_fail_cnt = 0;
3342         adapter->flags &= ~QLCNIC_FW_HANG;
3343         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3344         if (adapter->portnum == 0)
3345                 qlcnic_set_drv_version(adapter);
3346
3347         if (!qlcnic_clr_drv_state(adapter))
3348                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3349                                                         FW_POLL_DELAY);
3350 }
3351
3352 static int
3353 qlcnic_check_health(struct qlcnic_adapter *adapter)
3354 {
3355         u32 state = 0, heartbeat;
3356         u32 peg_status;
3357         int err = 0;
3358
3359         if (qlcnic_check_temp(adapter))
3360                 goto detach;
3361
3362         if (adapter->need_fw_reset)
3363                 qlcnic_dev_request_reset(adapter, 0);
3364
3365         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3366         if (state == QLCNIC_DEV_NEED_RESET) {
3367                 qlcnic_set_npar_non_operational(adapter);
3368                 adapter->need_fw_reset = 1;
3369         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3370                 goto detach;
3371
3372         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3373         if (heartbeat != adapter->heartbeat) {
3374                 adapter->heartbeat = heartbeat;
3375                 adapter->fw_fail_cnt = 0;
3376                 if (adapter->need_fw_reset)
3377                         goto detach;
3378
3379                 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset)
3380                         qlcnic_reset_hw_context(adapter);
3381
3382                 return 0;
3383         }
3384
3385         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3386                 return 0;
3387
3388         adapter->flags |= QLCNIC_FW_HANG;
3389
3390         qlcnic_dev_request_reset(adapter, 0);
3391
3392         if (qlcnic_auto_fw_reset)
3393                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3394
3395         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3396         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3397         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3398                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3399                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3400                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3401                         "PEG_NET_4_PC: 0x%x\n",
3402                         peg_status,
3403                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3404                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3405                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3406                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3407                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3408                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3409         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3410                 dev_err(&adapter->pdev->dev,
3411                         "Firmware aborted with error code 0x00006700. "
3412                                 "Device is being reset.\n");
3413 detach:
3414         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3415                 QLCNIC_DEV_NEED_RESET;
3416
3417         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3418                                                       &adapter->state)) {
3419
3420                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3421                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3422         }
3423
3424         return 1;
3425 }
3426
3427 void qlcnic_fw_poll_work(struct work_struct *work)
3428 {
3429         struct qlcnic_adapter *adapter = container_of(work,
3430                                 struct qlcnic_adapter, fw_work.work);
3431
3432         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3433                 goto reschedule;
3434
3435
3436         if (qlcnic_check_health(adapter))
3437                 return;
3438
3439         if (adapter->fhash.fnum)
3440                 qlcnic_prune_lb_filters(adapter);
3441
3442 reschedule:
3443         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3444 }
3445
3446 static int qlcnic_is_first_func(struct pci_dev *pdev)
3447 {
3448         struct pci_dev *oth_pdev;
3449         int val = pdev->devfn;
3450
3451         while (val-- > 0) {
3452                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3453                         (pdev->bus), pdev->bus->number,
3454                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3455                 if (!oth_pdev)
3456                         continue;
3457
3458                 if (oth_pdev->current_state != PCI_D3cold) {
3459                         pci_dev_put(oth_pdev);
3460                         return 0;
3461                 }
3462                 pci_dev_put(oth_pdev);
3463         }
3464         return 1;
3465 }
3466
3467 static int qlcnic_attach_func(struct pci_dev *pdev)
3468 {
3469         int err, first_func;
3470         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3471         struct net_device *netdev = adapter->netdev;
3472
3473         pdev->error_state = pci_channel_io_normal;
3474
3475         err = pci_enable_device(pdev);
3476         if (err)
3477                 return err;
3478
3479         pci_set_master(pdev);
3480         pci_restore_state(pdev);
3481
3482         first_func = qlcnic_is_first_func(pdev);
3483
3484         if (qlcnic_api_lock(adapter))
3485                 return -EINVAL;
3486
3487         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3488                 adapter->need_fw_reset = 1;
3489                 set_bit(__QLCNIC_START_FW, &adapter->state);
3490                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3491                                     QLCNIC_DEV_INITIALIZING);
3492                 QLCDB(adapter, DRV, "Restarting fw\n");
3493         }
3494         qlcnic_api_unlock(adapter);
3495
3496         err = qlcnic_start_firmware(adapter);
3497         if (err)
3498                 return err;
3499
3500         qlcnic_clr_drv_state(adapter);
3501         kfree(adapter->msix_entries);
3502         adapter->msix_entries = NULL;
3503         err = qlcnic_setup_intr(adapter, 0, 0);
3504
3505         if (err) {
3506                 kfree(adapter->msix_entries);
3507                 netdev_err(netdev, "failed to setup interrupt\n");
3508                 return err;
3509         }
3510
3511         if (netif_running(netdev)) {
3512                 err = qlcnic_attach(adapter);
3513                 if (err) {
3514                         qlcnic_clr_all_drv_state(adapter, 1);
3515                         clear_bit(__QLCNIC_AER, &adapter->state);
3516                         netif_device_attach(netdev);
3517                         return err;
3518                 }
3519
3520                 err = qlcnic_up(adapter, netdev);
3521                 if (err)
3522                         goto done;
3523
3524                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3525         }
3526  done:
3527         netif_device_attach(netdev);
3528         return err;
3529 }
3530
3531 pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3532                                                pci_channel_state_t state)
3533 {
3534         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3535         struct net_device *netdev = adapter->netdev;
3536
3537         if (state == pci_channel_io_perm_failure)
3538                 return PCI_ERS_RESULT_DISCONNECT;
3539
3540         if (state == pci_channel_io_normal)
3541                 return PCI_ERS_RESULT_RECOVERED;
3542
3543         set_bit(__QLCNIC_AER, &adapter->state);
3544         netif_device_detach(netdev);
3545
3546         cancel_delayed_work_sync(&adapter->fw_work);
3547
3548         if (netif_running(netdev))
3549                 qlcnic_down(adapter, netdev);
3550
3551         qlcnic_detach(adapter);
3552         qlcnic_teardown_intr(adapter);
3553
3554         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3555
3556         pci_save_state(pdev);
3557         pci_disable_device(pdev);
3558
3559         return PCI_ERS_RESULT_NEED_RESET;
3560 }
3561
3562 pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3563 {
3564         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3565                                 PCI_ERS_RESULT_RECOVERED;
3566 }
3567
3568 void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3569 {
3570         u32 state;
3571         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3572
3573         pci_cleanup_aer_uncorrect_error_status(pdev);
3574         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3575         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3576                                                             &adapter->state))
3577                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3578                                      FW_POLL_DELAY);
3579 }
3580
3581 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3582                                                  pci_channel_state_t state)
3583 {
3584         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3585         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3586
3587         if (hw_ops->io_error_detected) {
3588                 return hw_ops->io_error_detected(pdev, state);
3589         } else {
3590                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3591                 return PCI_ERS_RESULT_DISCONNECT;
3592         }
3593 }
3594
3595 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3596 {
3597         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3598         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3599
3600         if (hw_ops->io_slot_reset) {
3601                 return hw_ops->io_slot_reset(pdev);
3602         } else {
3603                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3604                 return PCI_ERS_RESULT_DISCONNECT;
3605         }
3606 }
3607
3608 static void qlcnic_io_resume(struct pci_dev *pdev)
3609 {
3610         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3611         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3612
3613         if (hw_ops->io_resume)
3614                 hw_ops->io_resume(pdev);
3615         else
3616                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3617 }
3618
3619
3620 static int
3621 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3622 {
3623         int err;
3624
3625         err = qlcnic_can_start_firmware(adapter);
3626         if (err)
3627                 return err;
3628
3629         err = qlcnic_check_npar_opertional(adapter);
3630         if (err)
3631                 return err;
3632
3633         err = qlcnic_initialize_nic(adapter);
3634         if (err)
3635                 return err;
3636
3637         qlcnic_check_options(adapter);
3638
3639         err = qlcnic_set_eswitch_port_config(adapter);
3640         if (err)
3641                 return err;
3642
3643         adapter->need_fw_reset = 0;
3644
3645         return err;
3646 }
3647
3648 int qlcnic_validate_max_tx_rings(struct qlcnic_adapter *adapter, u32 txq)
3649 {
3650         struct net_device *netdev = adapter->netdev;
3651         u8 max_hw = QLCNIC_MAX_TX_RINGS;
3652         u32 max_allowed;
3653
3654         if (!qlcnic_use_msi_x && !qlcnic_use_msi) {
3655                 netdev_err(netdev, "No Multi TX-Q support in INT-x mode\n");
3656                 return -EINVAL;
3657         }
3658
3659         if (!qlcnic_check_multi_tx(adapter)) {
3660                 netdev_err(netdev, "No Multi TX-Q support\n");
3661                 return -EINVAL;
3662         }
3663
3664         if (txq > QLCNIC_MAX_TX_RINGS) {
3665                 netdev_err(netdev, "Invalid ring count\n");
3666                 return -EINVAL;
3667         }
3668
3669         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3670                                                  num_online_cpus()));
3671         if ((txq > max_allowed) || !is_power_of_2(txq)) {
3672                 if (!is_power_of_2(txq))
3673                         netdev_err(netdev,
3674                                    "TX queue should be a power of 2\n");
3675                 if (txq > num_online_cpus())
3676                         netdev_err(netdev,
3677                                    "Tx queue should not be higher than [%u], number of online CPUs in the system\n",
3678                                    num_online_cpus());
3679                 netdev_err(netdev, "Unable to configure %u Tx rings\n", txq);
3680                 return -EINVAL;
3681         }
3682
3683         return 0;
3684 }
3685
3686 int qlcnic_validate_max_rss(struct qlcnic_adapter *adapter,
3687                                 __u32 val)
3688 {
3689         struct net_device *netdev = adapter->netdev;
3690         u8 max_hw = adapter->ahw->max_rx_ques;
3691         u32 max_allowed;
3692
3693         if (!qlcnic_use_msi_x && !qlcnic_use_msi) {
3694                 netdev_err(netdev, "No RSS support in INT-x mode\n");
3695                 return -EINVAL;
3696         }
3697
3698         if (val > QLCNIC_MAX_SDS_RINGS) {
3699                 netdev_err(netdev, "RSS value should not be higher than %u\n",
3700                            QLCNIC_MAX_SDS_RINGS);
3701                 return -EINVAL;
3702         }
3703
3704         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3705                                                  num_online_cpus()));
3706         if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3707                 if (!is_power_of_2(val))
3708                         netdev_err(netdev, "RSS value should be a power of 2\n");
3709
3710                 if (val < 2)
3711                         netdev_err(netdev, "RSS value should not be lower than 2\n");
3712
3713                 if (val > max_hw)
3714                         netdev_err(netdev,
3715                                    "RSS value should not be higher than[%u], the max RSS rings supported by the adapter\n",
3716                                    max_hw);
3717
3718                 if (val > num_online_cpus())
3719                         netdev_err(netdev,
3720                                    "RSS value should not be higher than[%u], number of online CPUs in the system\n",
3721                                    num_online_cpus());
3722
3723                 netdev_err(netdev, "Unable to configure %u RSS rings\n", val);
3724
3725                 return -EINVAL;
3726         }
3727         return 0;
3728 }
3729
3730 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, int txq)
3731 {
3732         int err;
3733         struct net_device *netdev = adapter->netdev;
3734         int num_msix;
3735
3736         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3737                 return -EBUSY;
3738
3739         if (qlcnic_82xx_check(adapter) && !qlcnic_use_msi_x &&
3740             !qlcnic_use_msi) {
3741                 netdev_err(netdev, "No RSS support in INT-x mode\n");
3742                 return -EINVAL;
3743         }
3744
3745         netif_device_detach(netdev);
3746         if (netif_running(netdev))
3747                 __qlcnic_down(adapter, netdev);
3748
3749         qlcnic_detach(adapter);
3750
3751         if (qlcnic_82xx_check(adapter)) {
3752                 if (txq != 0)
3753                         adapter->max_drv_tx_rings = txq;
3754
3755                 if (qlcnic_check_multi_tx(adapter) &&
3756                     (txq > adapter->max_drv_tx_rings))
3757                         num_msix = adapter->max_drv_tx_rings;
3758                 else
3759                         num_msix = data;
3760         }
3761
3762         if (qlcnic_83xx_check(adapter)) {
3763                 qlcnic_83xx_free_mbx_intr(adapter);
3764                 qlcnic_83xx_enable_mbx_poll(adapter);
3765         }
3766
3767         netif_set_real_num_tx_queues(netdev, adapter->max_drv_tx_rings);
3768
3769         qlcnic_teardown_intr(adapter);
3770
3771         err = qlcnic_setup_intr(adapter, data, txq);
3772         if (err) {
3773                 kfree(adapter->msix_entries);
3774                 netdev_err(netdev, "failed to setup interrupt\n");
3775                 return err;
3776         }
3777
3778         if (qlcnic_83xx_check(adapter)) {
3779                 /* register for NIC IDC AEN Events */
3780                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3781                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3782                 qlcnic_83xx_disable_mbx_poll(adapter);
3783                 if (err) {
3784                         dev_err(&adapter->pdev->dev,
3785                                 "failed to setup mbx interrupt\n");
3786                         goto done;
3787                 }
3788         }
3789
3790         if (netif_running(netdev)) {
3791                 err = qlcnic_attach(adapter);
3792                 if (err)
3793                         goto done;
3794                 err = __qlcnic_up(adapter, netdev);
3795                 if (err)
3796                         goto done;
3797                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3798         }
3799 done:
3800         netif_device_attach(netdev);
3801         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3802         return err;
3803 }
3804
3805 #ifdef CONFIG_INET
3806
3807 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3808
3809 static void
3810 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3811                         struct net_device *dev, unsigned long event)
3812 {
3813         struct in_device *indev;
3814
3815         indev = in_dev_get(dev);
3816         if (!indev)
3817                 return;
3818
3819         for_ifa(indev) {
3820                 switch (event) {
3821                 case NETDEV_UP:
3822                         qlcnic_config_ipaddr(adapter,
3823                                         ifa->ifa_address, QLCNIC_IP_UP);
3824                         break;
3825                 case NETDEV_DOWN:
3826                         qlcnic_config_ipaddr(adapter,
3827                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3828                         break;
3829                 default:
3830                         break;
3831                 }
3832         } endfor_ifa(indev);
3833
3834         in_dev_put(indev);
3835 }
3836
3837 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3838 {
3839         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3840         struct net_device *dev;
3841         u16 vid;
3842
3843         qlcnic_config_indev_addr(adapter, netdev, event);
3844
3845         rcu_read_lock();
3846         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3847                 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
3848                 if (!dev)
3849                         continue;
3850                 qlcnic_config_indev_addr(adapter, dev, event);
3851         }
3852         rcu_read_unlock();
3853 }
3854
3855 static int qlcnic_netdev_event(struct notifier_block *this,
3856                                  unsigned long event, void *ptr)
3857 {
3858         struct qlcnic_adapter *adapter;
3859         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3860
3861 recheck:
3862         if (dev == NULL)
3863                 goto done;
3864
3865         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3866                 dev = vlan_dev_real_dev(dev);
3867                 goto recheck;
3868         }
3869
3870         if (!is_qlcnic_netdev(dev))
3871                 goto done;
3872
3873         adapter = netdev_priv(dev);
3874
3875         if (!adapter)
3876                 goto done;
3877
3878         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3879                 goto done;
3880
3881         qlcnic_config_indev_addr(adapter, dev, event);
3882 done:
3883         return NOTIFY_DONE;
3884 }
3885
3886 static int
3887 qlcnic_inetaddr_event(struct notifier_block *this,
3888                 unsigned long event, void *ptr)
3889 {
3890         struct qlcnic_adapter *adapter;
3891         struct net_device *dev;
3892
3893         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3894
3895         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3896
3897 recheck:
3898         if (dev == NULL)
3899                 goto done;
3900
3901         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3902                 dev = vlan_dev_real_dev(dev);
3903                 goto recheck;
3904         }
3905
3906         if (!is_qlcnic_netdev(dev))
3907                 goto done;
3908
3909         adapter = netdev_priv(dev);
3910
3911         if (!adapter)
3912                 goto done;
3913
3914         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3915                 goto done;
3916
3917         switch (event) {
3918         case NETDEV_UP:
3919                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3920
3921                 break;
3922         case NETDEV_DOWN:
3923                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3924
3925                 break;
3926         default:
3927                 break;
3928         }
3929
3930 done:
3931         return NOTIFY_DONE;
3932 }
3933
3934 static struct notifier_block    qlcnic_netdev_cb = {
3935         .notifier_call = qlcnic_netdev_event,
3936 };
3937
3938 static struct notifier_block qlcnic_inetaddr_cb = {
3939         .notifier_call = qlcnic_inetaddr_event,
3940 };
3941 #else
3942 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3943 { }
3944 #endif
3945 static const struct pci_error_handlers qlcnic_err_handler = {
3946         .error_detected = qlcnic_io_error_detected,
3947         .slot_reset = qlcnic_io_slot_reset,
3948         .resume = qlcnic_io_resume,
3949 };
3950
3951 static struct pci_driver qlcnic_driver = {
3952         .name = qlcnic_driver_name,
3953         .id_table = qlcnic_pci_tbl,
3954         .probe = qlcnic_probe,
3955         .remove = qlcnic_remove,
3956 #ifdef CONFIG_PM
3957         .suspend = qlcnic_suspend,
3958         .resume = qlcnic_resume,
3959 #endif
3960         .shutdown = qlcnic_shutdown,
3961         .err_handler = &qlcnic_err_handler,
3962 #ifdef CONFIG_QLCNIC_SRIOV
3963         .sriov_configure = qlcnic_pci_sriov_configure,
3964 #endif
3965
3966 };
3967
3968 static int __init qlcnic_init_module(void)
3969 {
3970         int ret;
3971
3972         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3973
3974 #ifdef CONFIG_INET
3975         register_netdevice_notifier(&qlcnic_netdev_cb);
3976         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3977 #endif
3978
3979         ret = pci_register_driver(&qlcnic_driver);
3980         if (ret) {
3981 #ifdef CONFIG_INET
3982                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3983                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3984 #endif
3985         }
3986
3987         return ret;
3988 }
3989
3990 module_init(qlcnic_init_module);
3991
3992 static void __exit qlcnic_exit_module(void)
3993 {
3994         pci_unregister_driver(&qlcnic_driver);
3995
3996 #ifdef CONFIG_INET
3997         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3998         unregister_netdevice_notifier(&qlcnic_netdev_cb);
3999 #endif
4000 }
4001
4002 module_exit(qlcnic_exit_module);