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, id = 0, 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_set_port_eswitch_status(adapter, pfn,
 864                                                                  &id))
 865                                 adapter->npars[j].eswitch_status = true;
 866                         else
 867                                 continue;
 868                 } else {
 869                         adapter->npars[j].eswitch_status = true;
 870                 }
 871
 872                 adapter->npars[j].pci_func = pfn;
 873                 adapter->npars[j].active = (u8)pci_info[i].active;
 874                 adapter->npars[j].type = (u8)pci_info[i].type;
 875                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
 876                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
 877                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
 878
 879                 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
 880                 j++;
 881         }
 882
 883         /* Update eSwitch status for adapters without per port eSwitch
 884          * configuration capability
 885          */
 886         if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
 887                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
 888                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 889         }
 890
 891         kfree(pci_info);
 892         return 0;
 893
 894 err_eswitch:
 895         kfree(adapter->eswitch);
 896         adapter->eswitch = NULL;
 897 err_npars:
 898         kfree(adapter->npars);
 899         adapter->npars = NULL;
 900 err_pci_info:
 901         kfree(pci_info);
 902
 903         return ret;
 904 }
 905
 906 static int
 907 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 908 {
 909         u8 id;
 910         int ret;
 911         u32 data = QLCNIC_MGMT_FUNC;
 912         struct qlcnic_hardware_context *ahw = adapter->ahw;
 913
 914         ret = qlcnic_api_lock(adapter);
 915         if (ret)
 916                 goto err_lock;
 917
 918         id = ahw->pci_func;
 919         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 920         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
 921                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
 922         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
 923         qlcnic_api_unlock(adapter);
 924 err_lock:
 925         return ret;
 926 }
 927
 928 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
 929                             const struct pci_device_id *ent)
 930 {
 931         u32 op_mode, priv_level;
 932
 933         /* Determine FW API version */
 934         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
 935                                                            QLCNIC_FW_API);
 936
 937         /* Find PCI function number */
 938         qlcnic_get_func_no(adapter);
 939
 940         /* Determine function privilege level */
 941         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 942         if (op_mode == QLC_DEV_DRV_DEFAULT)
 943                 priv_level = QLCNIC_MGMT_FUNC;
 944         else
 945                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 946
 947         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 948                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 949                 dev_info(&adapter->pdev->dev,
 950                         "HAL Version: %d Non Privileged function\n",
 951                          adapter->ahw->fw_hal_version);
 952                 adapter->nic_ops = &qlcnic_vf_ops;
 953         } else
 954                 adapter->nic_ops = &qlcnic_ops;
 955 }
 956
 957 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
 958 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
 959 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
 960 {
 961         switch (dev_id) {
 962         case PCI_DEVICE_ID_QLOGIC_QLE824X:
 963                 *bar = QLCNIC_82XX_BAR0_LENGTH;
 964                 break;
 965         case PCI_DEVICE_ID_QLOGIC_QLE834X:
 966         case PCI_DEVICE_ID_QLOGIC_QLE844X:
 967         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
 968         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
 969                 *bar = QLCNIC_83XX_BAR0_LENGTH;
 970                 break;
 971         default:
 972                 *bar = 0;
 973         }
 974 }
 975
 976 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
 977                                 struct qlcnic_hardware_context *ahw)
 978 {
 979         u32 offset;
 980         void __iomem *mem_ptr0 = NULL;
 981         unsigned long mem_len, pci_len0 = 0, bar0_len;
 982
 983         /* remap phys address */
 984         mem_len = pci_resource_len(pdev, 0);
 985
 986         qlcnic_get_bar_length(pdev->device, &bar0_len);
 987         if (mem_len >= bar0_len) {
 988
 989                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 990                 if (mem_ptr0 == NULL) {
 991                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 992                         return -EIO;
 993                 }
 994                 pci_len0 = mem_len;
 995         } else {
 996                 return -EIO;
 997         }
 998
 999         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1000
1001         ahw->pci_base0 = mem_ptr0;
1002         ahw->pci_len0 = pci_len0;
1003         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1004         qlcnic_get_ioaddr(ahw, offset);
1005
1006         return 0;
1007 }
1008
1009 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1010                                          int index)
1011 {
1012         struct pci_dev *pdev = adapter->pdev;
1013         unsigned short subsystem_vendor;
1014         bool ret = true;
1015
1016         subsystem_vendor = pdev->subsystem_vendor;
1017
1018         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1019             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1020                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1021                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1022                         ret = true;
1023                 else
1024                         ret = false;
1025         }
1026
1027         return ret;
1028 }
1029
1030 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1031 {
1032         struct pci_dev *pdev = adapter->pdev;
1033         int i, found = 0;
1034
1035         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1036                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1037                     qlcnic_boards[i].device == pdev->device &&
1038                     qlcnic_validate_subsystem_id(adapter, i)) {
1039                         found = 1;
1040                         break;
1041                 }
1042         }
1043
1044         if (!found)
1045                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1046         else
1047                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1048                         qlcnic_boards[i].short_name);
1049 }
1050
1051 static void
1052 qlcnic_check_options(struct qlcnic_adapter *adapter)
1053 {
1054         int err;
1055         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1056         struct pci_dev *pdev = adapter->pdev;
1057         struct qlcnic_hardware_context *ahw = adapter->ahw;
1058         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1059
1060         prev_fw_version = adapter->fw_version;
1061
1062         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1063         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1064         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1065
1066         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1067
1068         err = qlcnic_get_board_info(adapter);
1069         if (err) {
1070                 dev_err(&pdev->dev, "Error getting board config info.\n");
1071                 return;
1072         }
1073         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1074                 if (fw_dump->tmpl_hdr == NULL ||
1075                                 adapter->fw_version > prev_fw_version) {
1076                         if (fw_dump->tmpl_hdr)
1077                                 vfree(fw_dump->tmpl_hdr);
1078                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1079                                 dev_info(&pdev->dev,
1080                                         "Supports FW dump capability\n");
1081                 }
1082         }
1083
1084         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1085                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1086
1087         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1088                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1089                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1090                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1091                 } else {
1092                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1093                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1094                 }
1095
1096                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1097                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1098
1099         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1100                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1101                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1102                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1103                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1104         }
1105
1106         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1107
1108         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1109
1110         adapter->max_rds_rings = MAX_RDS_RINGS;
1111 }
1112
1113 static int
1114 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1115 {
1116         struct qlcnic_info nic_info;
1117         int err = 0;
1118
1119         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1120         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1121         if (err)
1122                 return err;
1123
1124         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1125         adapter->ahw->switch_mode = nic_info.switch_mode;
1126         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1127         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1128         adapter->ahw->capabilities = nic_info.capabilities;
1129
1130         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1131                 u32 temp;
1132                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1133                 if (err == -EIO)
1134                         return err;
1135                 adapter->ahw->extra_capability[0] = temp;
1136         }
1137         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1138         adapter->ahw->max_mtu = nic_info.max_mtu;
1139
1140         /* Disable NPAR for 83XX */
1141         if (qlcnic_83xx_check(adapter))
1142                 return err;
1143
1144         if (adapter->ahw->capabilities & BIT_6)
1145                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1146         else
1147                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1148
1149         return err;
1150 }
1151
1152 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1153                             struct qlcnic_esw_func_cfg *esw_cfg)
1154 {
1155         if (esw_cfg->discard_tagged)
1156                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1157         else
1158                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1159
1160         if (esw_cfg->vlan_id) {
1161                 adapter->rx_pvid = esw_cfg->vlan_id;
1162                 adapter->tx_pvid = esw_cfg->vlan_id;
1163         } else {
1164                 adapter->rx_pvid = 0;
1165                 adapter->tx_pvid = 0;
1166         }
1167 }
1168
1169 static int
1170 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1171 {
1172         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1173         int err;
1174
1175         if (qlcnic_sriov_vf_check(adapter)) {
1176                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1177                 if (err) {
1178                         netdev_err(netdev,
1179                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1180                                    vid, err);
1181                         return err;
1182                 }
1183         }
1184
1185         set_bit(vid, adapter->vlans);
1186         return 0;
1187 }
1188
1189 static int
1190 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1191 {
1192         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1193         int err;
1194
1195         if (qlcnic_sriov_vf_check(adapter)) {
1196                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1197                 if (err) {
1198                         netdev_err(netdev,
1199                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1200                                    vid, err);
1201                         return err;
1202                 }
1203         }
1204
1205         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1206         clear_bit(vid, adapter->vlans);
1207         return 0;
1208 }
1209
1210 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1211                                       struct qlcnic_esw_func_cfg *esw_cfg)
1212 {
1213         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1214                                 QLCNIC_PROMISC_DISABLED);
1215
1216         if (esw_cfg->mac_anti_spoof)
1217                 adapter->flags |= QLCNIC_MACSPOOF;
1218
1219         if (!esw_cfg->mac_override)
1220                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1221
1222         if (!esw_cfg->promisc_mode)
1223                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1224 }
1225
1226 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1227 {
1228         struct qlcnic_esw_func_cfg esw_cfg;
1229
1230         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1231                 return 0;
1232
1233         esw_cfg.pci_func = adapter->ahw->pci_func;
1234         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1235                         return -EIO;
1236         qlcnic_set_vlan_config(adapter, &esw_cfg);
1237         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1238         qlcnic_set_netdev_features(adapter, &esw_cfg);
1239
1240         return 0;
1241 }
1242
1243 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1244                                 struct qlcnic_esw_func_cfg *esw_cfg)
1245 {
1246         struct net_device *netdev = adapter->netdev;
1247
1248         if (qlcnic_83xx_check(adapter))
1249                 return;
1250
1251         adapter->offload_flags = esw_cfg->offload_flags;
1252         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1253         netdev_update_features(netdev);
1254         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1255 }
1256
1257 static int
1258 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1259 {
1260         u32 op_mode, priv_level;
1261         int err = 0;
1262
1263         err = qlcnic_initialize_nic(adapter);
1264         if (err)
1265                 return err;
1266
1267         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1268                 return 0;
1269
1270         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1271         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1272
1273         if (op_mode == QLC_DEV_DRV_DEFAULT)
1274                 priv_level = QLCNIC_MGMT_FUNC;
1275         else
1276                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1277
1278         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1279                 if (priv_level == QLCNIC_MGMT_FUNC) {
1280                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1281                         err = qlcnic_init_pci_info(adapter);
1282                         if (err)
1283                                 return err;
1284                         /* Set privilege level for other functions */
1285                         qlcnic_set_function_modes(adapter);
1286                         dev_info(&adapter->pdev->dev,
1287                                 "HAL Version: %d, Management function\n",
1288                                  adapter->ahw->fw_hal_version);
1289                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1290                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1291                         dev_info(&adapter->pdev->dev,
1292                                 "HAL Version: %d, Privileged function\n",
1293                                  adapter->ahw->fw_hal_version);
1294                 }
1295         }
1296
1297         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1298
1299         return err;
1300 }
1301
1302 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1303 {
1304         struct qlcnic_esw_func_cfg esw_cfg;
1305         struct qlcnic_npar_info *npar;
1306         u8 i;
1307
1308         if (adapter->need_fw_reset)
1309                 return 0;
1310
1311         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1312                 if (!adapter->npars[i].eswitch_status)
1313                         continue;
1314
1315                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1316                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1317                 esw_cfg.mac_override = BIT_0;
1318                 esw_cfg.promisc_mode = BIT_0;
1319                 if (qlcnic_82xx_check(adapter)) {
1320                         esw_cfg.offload_flags = BIT_0;
1321                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1322                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1323                 }
1324                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1325                         return -EIO;
1326                 npar = &adapter->npars[i];
1327                 npar->pvid = esw_cfg.vlan_id;
1328                 npar->mac_override = esw_cfg.mac_override;
1329                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1330                 npar->discard_tagged = esw_cfg.discard_tagged;
1331                 npar->promisc_mode = esw_cfg.promisc_mode;
1332                 npar->offload_flags = esw_cfg.offload_flags;
1333         }
1334
1335         return 0;
1336 }
1337
1338
1339 static int
1340 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1341                         struct qlcnic_npar_info *npar, int pci_func)
1342 {
1343         struct qlcnic_esw_func_cfg esw_cfg;
1344         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1345         esw_cfg.pci_func = pci_func;
1346         esw_cfg.vlan_id = npar->pvid;
1347         esw_cfg.mac_override = npar->mac_override;
1348         esw_cfg.discard_tagged = npar->discard_tagged;
1349         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1350         esw_cfg.offload_flags = npar->offload_flags;
1351         esw_cfg.promisc_mode = npar->promisc_mode;
1352         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1353                 return -EIO;
1354
1355         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1356         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1357                 return -EIO;
1358
1359         return 0;
1360 }
1361
1362 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1363 {
1364         int i, err;
1365         struct qlcnic_npar_info *npar;
1366         struct qlcnic_info nic_info;
1367         u8 pci_func;
1368
1369         if (qlcnic_82xx_check(adapter))
1370                 if (!adapter->need_fw_reset)
1371                         return 0;
1372
1373         /* Set the NPAR config data after FW reset */
1374         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1375                 npar = &adapter->npars[i];
1376                 pci_func = npar->pci_func;
1377                 if (!adapter->npars[i].eswitch_status)
1378                         continue;
1379
1380                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1381                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1382                 if (err)
1383                         return err;
1384                 nic_info.min_tx_bw = npar->min_bw;
1385                 nic_info.max_tx_bw = npar->max_bw;
1386                 err = qlcnic_set_nic_info(adapter, &nic_info);
1387                 if (err)
1388                         return err;
1389
1390                 if (npar->enable_pm) {
1391                         err = qlcnic_config_port_mirroring(adapter,
1392                                                            npar->dest_npar, 1,
1393                                                            pci_func);
1394                         if (err)
1395                                 return err;
1396                 }
1397                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1398                 if (err)
1399                         return err;
1400         }
1401         return 0;
1402 }
1403
1404 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1405 {
1406         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1407         u32 npar_state;
1408
1409         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1410                 return 0;
1411
1412         npar_state = QLC_SHARED_REG_RD32(adapter,
1413                                          QLCNIC_CRB_DEV_NPAR_STATE);
1414         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1415                 msleep(1000);
1416                 npar_state = QLC_SHARED_REG_RD32(adapter,
1417                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1418         }
1419         if (!npar_opt_timeo) {
1420                 dev_err(&adapter->pdev->dev,
1421                         "Waiting for NPAR state to operational timeout\n");
1422                 return -EIO;
1423         }
1424         return 0;
1425 }
1426
1427 static int
1428 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1429 {
1430         int err;
1431
1432         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1433             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1434                 return 0;
1435
1436         err = qlcnic_set_default_offload_settings(adapter);
1437         if (err)
1438                 return err;
1439
1440         err = qlcnic_reset_npar_config(adapter);
1441         if (err)
1442                 return err;
1443
1444         qlcnic_dev_set_npar_ready(adapter);
1445
1446         return err;
1447 }
1448
1449 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1450 {
1451         int err;
1452
1453         err = qlcnic_can_start_firmware(adapter);
1454         if (err < 0)
1455                 return err;
1456         else if (!err)
1457                 goto check_fw_status;
1458
1459         if (qlcnic_load_fw_file)
1460                 qlcnic_request_firmware(adapter);
1461         else {
1462                 err = qlcnic_check_flash_fw_ver(adapter);
1463                 if (err)
1464                         goto err_out;
1465
1466                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1467         }
1468
1469         err = qlcnic_need_fw_reset(adapter);
1470         if (err == 0)
1471                 goto check_fw_status;
1472
1473         err = qlcnic_pinit_from_rom(adapter);
1474         if (err)
1475                 goto err_out;
1476
1477         err = qlcnic_load_firmware(adapter);
1478         if (err)
1479                 goto err_out;
1480
1481         qlcnic_release_firmware(adapter);
1482         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1483
1484 check_fw_status:
1485         err = qlcnic_check_fw_status(adapter);
1486         if (err)
1487                 goto err_out;
1488
1489         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1490         qlcnic_idc_debug_info(adapter, 1);
1491         err = qlcnic_check_eswitch_mode(adapter);
1492         if (err) {
1493                 dev_err(&adapter->pdev->dev,
1494                         "Memory allocation failed for eswitch\n");
1495                 goto err_out;
1496         }
1497         err = qlcnic_set_mgmt_operations(adapter);
1498         if (err)
1499                 goto err_out;
1500
1501         qlcnic_check_options(adapter);
1502         adapter->need_fw_reset = 0;
1503
1504         qlcnic_release_firmware(adapter);
1505         return 0;
1506
1507 err_out:
1508         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1509         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1510
1511         qlcnic_release_firmware(adapter);
1512         return err;
1513 }
1514
1515 static int
1516 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1517 {
1518         irq_handler_t handler;
1519         struct qlcnic_host_sds_ring *sds_ring;
1520         struct qlcnic_host_tx_ring *tx_ring;
1521         int err, ring, num_sds_rings;
1522
1523         unsigned long flags = 0;
1524         struct net_device *netdev = adapter->netdev;
1525         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1526
1527         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1528                 if (qlcnic_82xx_check(adapter))
1529                         handler = qlcnic_tmp_intr;
1530                 else
1531                         handler = qlcnic_83xx_tmp_intr;
1532                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1533                         flags |= IRQF_SHARED;
1534
1535         } else {
1536                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1537                         handler = qlcnic_msix_intr;
1538                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1539                         handler = qlcnic_msi_intr;
1540                 else {
1541                         flags |= IRQF_SHARED;
1542                         if (qlcnic_82xx_check(adapter))
1543                                 handler = qlcnic_intr;
1544                         else
1545                                 handler = qlcnic_83xx_intr;
1546                 }
1547         }
1548         adapter->irq = netdev->irq;
1549
1550         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1551                 if (qlcnic_82xx_check(adapter) ||
1552                     (qlcnic_83xx_check(adapter) &&
1553                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1554                         num_sds_rings = adapter->max_sds_rings;
1555                         for (ring = 0; ring < num_sds_rings; ring++) {
1556                                 sds_ring = &recv_ctx->sds_rings[ring];
1557                                 if (qlcnic_82xx_check(adapter) &&
1558                                     !qlcnic_check_multi_tx(adapter) &&
1559                                     (ring == (num_sds_rings - 1))) {
1560                                         if (!(adapter->flags &
1561                                               QLCNIC_MSIX_ENABLED))
1562                                                 snprintf(sds_ring->name,
1563                                                          sizeof(sds_ring->name),
1564                                                          "qlcnic");
1565                                         else
1566                                                 snprintf(sds_ring->name,
1567                                                          sizeof(sds_ring->name),
1568                                                          "%s-tx-0-rx-%d",
1569                                                          netdev->name, ring);
1570                                 } else {
1571                                         snprintf(sds_ring->name,
1572                                                  sizeof(sds_ring->name),
1573                                                  "%s-rx-%d",
1574                                                  netdev->name, ring);
1575                                 }
1576                                 err = request_irq(sds_ring->irq, handler, flags,
1577                                                   sds_ring->name, sds_ring);
1578                                 if (err)
1579                                         return err;
1580                         }
1581                 }
1582                 if ((qlcnic_82xx_check(adapter) &&
1583                      qlcnic_check_multi_tx(adapter)) ||
1584                     (qlcnic_83xx_check(adapter) &&
1585                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1586                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1587                         handler = qlcnic_msix_tx_intr;
1588                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1589                              ring++) {
1590                                 tx_ring = &adapter->tx_ring[ring];
1591                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1592                                          "%s-tx-%d", netdev->name, ring);
1593                                 err = request_irq(tx_ring->irq, handler, flags,
1594                                                   tx_ring->name, tx_ring);
1595                                 if (err)
1596                                         return err;
1597                         }
1598                 }
1599         }
1600         return 0;
1601 }
1602
1603 static void
1604 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1605 {
1606         int ring;
1607         struct qlcnic_host_sds_ring *sds_ring;
1608         struct qlcnic_host_tx_ring *tx_ring;
1609
1610         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1611
1612         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1613                 if (qlcnic_82xx_check(adapter) ||
1614                     (qlcnic_83xx_check(adapter) &&
1615                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1616                         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1617                                 sds_ring = &recv_ctx->sds_rings[ring];
1618                                 free_irq(sds_ring->irq, sds_ring);
1619                         }
1620                 }
1621                 if ((qlcnic_83xx_check(adapter) &&
1622                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1623                     (qlcnic_82xx_check(adapter) &&
1624                      qlcnic_check_multi_tx(adapter))) {
1625                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1626                              ring++) {
1627                                 tx_ring = &adapter->tx_ring[ring];
1628                                 if (tx_ring->irq)
1629                                         free_irq(tx_ring->irq, tx_ring);
1630                         }
1631                 }
1632         }
1633 }
1634
1635 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1636 {
1637         u32 capab = 0;
1638
1639         if (qlcnic_82xx_check(adapter)) {
1640                 if (adapter->ahw->extra_capability[0] &
1641                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1642                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1643         } else {
1644                 capab = adapter->ahw->capabilities;
1645                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1646                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1647         }
1648 }
1649
1650 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1651 {
1652         int ring;
1653         struct qlcnic_host_rds_ring *rds_ring;
1654
1655         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1656                 return -EIO;
1657
1658         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1659                 return 0;
1660
1661         if (qlcnic_set_eswitch_port_config(adapter))
1662                 return -EIO;
1663
1664         qlcnic_get_lro_mss_capability(adapter);
1665
1666         if (qlcnic_fw_create_ctx(adapter))
1667                 return -EIO;
1668
1669         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1670                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1671                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1672         }
1673
1674         qlcnic_set_multi(netdev);
1675         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1676
1677         adapter->ahw->linkup = 0;
1678
1679         if (adapter->max_sds_rings > 1)
1680                 qlcnic_config_rss(adapter, 1);
1681
1682         qlcnic_config_intr_coalesce(adapter);
1683
1684         if (netdev->features & NETIF_F_LRO)
1685                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1686
1687         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1688         qlcnic_napi_enable(adapter);
1689
1690         qlcnic_linkevent_request(adapter, 1);
1691
1692         adapter->ahw->reset_context = 0;
1693         return 0;
1694 }
1695
1696 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1697 {
1698         int err = 0;
1699
1700         rtnl_lock();
1701         if (netif_running(netdev))
1702                 err = __qlcnic_up(adapter, netdev);
1703         rtnl_unlock();
1704
1705         return err;
1706 }
1707
1708 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1709 {
1710         int ring;
1711
1712         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1713                 return;
1714
1715         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1716                 return;
1717
1718         if (qlcnic_sriov_vf_check(adapter))
1719                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1720         smp_mb();
1721         netif_carrier_off(netdev);
1722         adapter->ahw->linkup = 0;
1723         netif_tx_disable(netdev);
1724
1725         qlcnic_free_mac_list(adapter);
1726
1727         if (adapter->fhash.fnum)
1728                 qlcnic_delete_lb_filters(adapter);
1729
1730         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1731
1732         qlcnic_napi_disable(adapter);
1733
1734         qlcnic_fw_destroy_ctx(adapter);
1735         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1736
1737         qlcnic_reset_rx_buffers_list(adapter);
1738
1739         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++)
1740                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1741 }
1742
1743 /* Usage: During suspend and firmware recovery module */
1744
1745 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1746 {
1747         rtnl_lock();
1748         if (netif_running(netdev))
1749                 __qlcnic_down(adapter, netdev);
1750         rtnl_unlock();
1751
1752 }
1753
1754 int
1755 qlcnic_attach(struct qlcnic_adapter *adapter)
1756 {
1757         struct net_device *netdev = adapter->netdev;
1758         struct pci_dev *pdev = adapter->pdev;
1759         int err;
1760
1761         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1762                 return 0;
1763
1764         err = qlcnic_napi_add(adapter, netdev);
1765         if (err)
1766                 return err;
1767
1768         err = qlcnic_alloc_sw_resources(adapter);
1769         if (err) {
1770                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1771                 goto err_out_napi_del;
1772         }
1773
1774         err = qlcnic_alloc_hw_resources(adapter);
1775         if (err) {
1776                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1777                 goto err_out_free_sw;
1778         }
1779
1780         err = qlcnic_request_irq(adapter);
1781         if (err) {
1782                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1783                 goto err_out_free_hw;
1784         }
1785
1786         qlcnic_create_sysfs_entries(adapter);
1787
1788         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1789         return 0;
1790
1791 err_out_free_hw:
1792         qlcnic_free_hw_resources(adapter);
1793 err_out_free_sw:
1794         qlcnic_free_sw_resources(adapter);
1795 err_out_napi_del:
1796         qlcnic_napi_del(adapter);
1797         return err;
1798 }
1799
1800 void qlcnic_detach(struct qlcnic_adapter *adapter)
1801 {
1802         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1803                 return;
1804
1805         qlcnic_remove_sysfs_entries(adapter);
1806
1807         qlcnic_free_hw_resources(adapter);
1808         qlcnic_release_rx_buffers(adapter);
1809         qlcnic_free_irq(adapter);
1810         qlcnic_napi_del(adapter);
1811         qlcnic_free_sw_resources(adapter);
1812
1813         adapter->is_up = 0;
1814 }
1815
1816 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1817 {
1818         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1819         struct qlcnic_host_sds_ring *sds_ring;
1820         int max_tx_rings = adapter->max_drv_tx_rings;
1821         int ring;
1822
1823         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1824         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1825                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1826                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1827                         qlcnic_disable_int(sds_ring);
1828                 }
1829         }
1830
1831         qlcnic_fw_destroy_ctx(adapter);
1832
1833         qlcnic_detach(adapter);
1834
1835         adapter->ahw->diag_test = 0;
1836         adapter->max_sds_rings = max_sds_rings;
1837         adapter->max_drv_tx_rings = max_tx_rings;
1838
1839         if (qlcnic_attach(adapter))
1840                 goto out;
1841
1842         if (netif_running(netdev))
1843                 __qlcnic_up(adapter, netdev);
1844 out:
1845         netif_device_attach(netdev);
1846 }
1847
1848 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1849 {
1850         struct qlcnic_hardware_context *ahw = adapter->ahw;
1851         int err = 0;
1852
1853         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1854                                 GFP_KERNEL);
1855         if (!adapter->recv_ctx) {
1856                 err = -ENOMEM;
1857                 goto err_out;
1858         }
1859         /* Initialize interrupt coalesce parameters */
1860         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1861         ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1862         ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1863         ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1864         if (qlcnic_83xx_check(adapter)) {
1865                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1866                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1867         }
1868         /* clear stats */
1869         memset(&adapter->stats, 0, sizeof(adapter->stats));
1870 err_out:
1871         return err;
1872 }
1873
1874 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1875 {
1876         kfree(adapter->recv_ctx);
1877         adapter->recv_ctx = NULL;
1878
1879         if (adapter->ahw->fw_dump.tmpl_hdr) {
1880                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1881                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1882         }
1883
1884         kfree(adapter->ahw->reset.buff);
1885         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1886 }
1887
1888 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1889 {
1890         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1891         struct qlcnic_host_sds_ring *sds_ring;
1892         struct qlcnic_host_rds_ring *rds_ring;
1893         int ring;
1894         int ret;
1895
1896         netif_device_detach(netdev);
1897
1898         if (netif_running(netdev))
1899                 __qlcnic_down(adapter, netdev);
1900
1901         qlcnic_detach(adapter);
1902
1903         adapter->max_sds_rings = 1;
1904         adapter->ahw->diag_test = test;
1905         adapter->ahw->linkup = 0;
1906         adapter->max_drv_tx_rings = 1;
1907
1908         ret = qlcnic_attach(adapter);
1909         if (ret) {
1910                 netif_device_attach(netdev);
1911                 return ret;
1912         }
1913
1914         ret = qlcnic_fw_create_ctx(adapter);
1915         if (ret) {
1916                 qlcnic_detach(adapter);
1917                 netif_device_attach(netdev);
1918                 return ret;
1919         }
1920
1921         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1922                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1923                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1924         }
1925
1926         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1927                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1928                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1929                         qlcnic_enable_int(sds_ring);
1930                 }
1931         }
1932
1933         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1934                 adapter->ahw->loopback_state = 0;
1935                 qlcnic_linkevent_request(adapter, 1);
1936         }
1937
1938         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1939
1940         return 0;
1941 }
1942
1943 /* Reset context in hardware only */
1944 static int
1945 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1946 {
1947         struct net_device *netdev = adapter->netdev;
1948
1949         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1950                 return -EBUSY;
1951
1952         netif_device_detach(netdev);
1953
1954         qlcnic_down(adapter, netdev);
1955
1956         qlcnic_up(adapter, netdev);
1957
1958         netif_device_attach(netdev);
1959
1960         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1961         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1962         return 0;
1963 }
1964
1965 int
1966 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1967 {
1968         int err = 0;
1969         struct net_device *netdev = adapter->netdev;
1970
1971         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1972                 return -EBUSY;
1973
1974         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1975
1976                 netif_device_detach(netdev);
1977
1978                 if (netif_running(netdev))
1979                         __qlcnic_down(adapter, netdev);
1980
1981                 qlcnic_detach(adapter);
1982
1983                 if (netif_running(netdev)) {
1984                         err = qlcnic_attach(adapter);
1985                         if (!err) {
1986                                 __qlcnic_up(adapter, netdev);
1987                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1988                         }
1989                 }
1990
1991                 netif_device_attach(netdev);
1992         }
1993
1994         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1995         return err;
1996 }
1997
1998 void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
1999 {
2000         struct qlcnic_hardware_context *ahw = adapter->ahw;
2001         u16 act_pci_fn = ahw->act_pci_func;
2002         u16 count;
2003
2004         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2005         if (act_pci_fn <= 2)
2006                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2007                          act_pci_fn;
2008         else
2009                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2010                          act_pci_fn;
2011         ahw->max_uc_count = count;
2012 }
2013
2014 int
2015 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2016                     int pci_using_dac)
2017 {
2018         int err;
2019         struct pci_dev *pdev = adapter->pdev;
2020
2021         adapter->rx_csum = 1;
2022         adapter->ahw->mc_enabled = 0;
2023         qlcnic_set_mac_filter_count(adapter);
2024
2025         netdev->netdev_ops         = &qlcnic_netdev_ops;
2026         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2027
2028         qlcnic_change_mtu(netdev, netdev->mtu);
2029
2030         if (qlcnic_sriov_vf_check(adapter))
2031                 SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
2032         else
2033                 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
2034
2035         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2036                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2037                              NETIF_F_HW_VLAN_CTAG_RX);
2038         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2039                                   NETIF_F_IPV6_CSUM);
2040
2041         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2042                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2043                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2044         }
2045
2046         if (pci_using_dac) {
2047                 netdev->features |= NETIF_F_HIGHDMA;
2048                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2049         }
2050
2051         if (qlcnic_vlan_tx_check(adapter))
2052                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2053
2054         if (qlcnic_sriov_vf_check(adapter))
2055                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2056
2057         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2058                 netdev->features |= NETIF_F_LRO;
2059
2060         netdev->hw_features = netdev->features;
2061         netdev->priv_flags |= IFF_UNICAST_FLT;
2062         netdev->irq = adapter->msix_entries[0].vector;
2063
2064         err = qlcnic_set_real_num_queues(adapter, netdev);
2065         if (err)
2066                 return err;
2067
2068         err = register_netdev(netdev);
2069         if (err) {
2070                 dev_err(&pdev->dev, "failed to register net device\n");
2071                 return err;
2072         }
2073
2074         qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2075
2076         return 0;
2077 }
2078
2079 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2080 {
2081         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2082                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2083                 *pci_using_dac = 1;
2084         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2085                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2086                 *pci_using_dac = 0;
2087         else {
2088                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2089                 return -EIO;
2090         }
2091
2092         return 0;
2093 }
2094
2095 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2096 {
2097         int ring;
2098         struct qlcnic_host_tx_ring *tx_ring;
2099
2100         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
2101                 tx_ring = &adapter->tx_ring[ring];
2102                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
2103                         vfree(tx_ring->cmd_buf_arr);
2104                         tx_ring->cmd_buf_arr = NULL;
2105                 }
2106         }
2107         if (adapter->tx_ring != NULL)
2108                 kfree(adapter->tx_ring);
2109 }
2110
2111 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2112                           struct net_device *netdev)
2113 {
2114         int ring, vector, index;
2115         struct qlcnic_host_tx_ring *tx_ring;
2116         struct qlcnic_cmd_buffer *cmd_buf_arr;
2117
2118         tx_ring = kcalloc(adapter->max_drv_tx_rings,
2119                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2120         if (tx_ring == NULL)
2121                 return -ENOMEM;
2122
2123         adapter->tx_ring = tx_ring;
2124
2125         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
2126                 tx_ring = &adapter->tx_ring[ring];
2127                 tx_ring->num_desc = adapter->num_txd;
2128                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2129                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2130                 if (cmd_buf_arr == NULL) {
2131                         qlcnic_free_tx_rings(adapter);
2132                         return -ENOMEM;
2133                 }
2134                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
2135                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2136         }
2137
2138         if (qlcnic_83xx_check(adapter) ||
2139             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2140                 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
2141                         tx_ring = &adapter->tx_ring[ring];
2142                         tx_ring->adapter = adapter;
2143                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2144                                 index = adapter->max_sds_rings + ring;
2145                                 vector = adapter->msix_entries[index].vector;
2146                                 tx_ring->irq = vector;
2147                         }
2148                 }
2149         }
2150
2151         return 0;
2152 }
2153
2154 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2155 {
2156         struct qlcnic_hardware_context *ahw = adapter->ahw;
2157         u32 fw_cmd = 0;
2158
2159         if (qlcnic_82xx_check(adapter))
2160                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2161         else if (qlcnic_83xx_check(adapter))
2162                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2163
2164         if ((ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) &&
2165             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER))
2166                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2167 }
2168
2169 static int
2170 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2171 {
2172         struct net_device *netdev = NULL;
2173         struct qlcnic_adapter *adapter = NULL;
2174         struct qlcnic_hardware_context *ahw;
2175         int err, pci_using_dac = -1;
2176         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2177         struct qlcnic_dcb *dcb;
2178
2179         if (pdev->is_virtfn)
2180                 return -ENODEV;
2181
2182         err = pci_enable_device(pdev);
2183         if (err)
2184                 return err;
2185
2186         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2187                 err = -ENODEV;
2188                 goto err_out_disable_pdev;
2189         }
2190
2191         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2192         if (err)
2193                 goto err_out_disable_pdev;
2194
2195         err = pci_request_regions(pdev, qlcnic_driver_name);
2196         if (err)
2197                 goto err_out_disable_pdev;
2198
2199         pci_set_master(pdev);
2200         pci_enable_pcie_error_reporting(pdev);
2201
2202         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2203         if (!ahw) {
2204                 err = -ENOMEM;
2205                 goto err_out_free_res;
2206         }
2207
2208         switch (ent->device) {
2209         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2210                 ahw->hw_ops = &qlcnic_hw_ops;
2211                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2212                 break;
2213         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2214         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2215                 qlcnic_83xx_register_map(ahw);
2216                 break;
2217         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2218         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2219                 qlcnic_sriov_vf_register_map(ahw);
2220                 break;
2221         default:
2222                 goto err_out_free_hw_res;
2223         }
2224
2225         err = qlcnic_setup_pci_map(pdev, ahw);
2226         if (err)
2227                 goto err_out_free_hw_res;
2228
2229         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2230                                    QLCNIC_MAX_TX_RINGS);
2231         if (!netdev) {
2232                 err = -ENOMEM;
2233                 goto err_out_iounmap;
2234         }
2235
2236         SET_NETDEV_DEV(netdev, &pdev->dev);
2237
2238         adapter = netdev_priv(netdev);
2239         adapter->netdev  = netdev;
2240         adapter->pdev    = pdev;
2241         adapter->ahw = ahw;
2242
2243         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2244         if (adapter->qlcnic_wq == NULL) {
2245                 err = -ENOMEM;
2246                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2247                 goto err_out_free_netdev;
2248         }
2249
2250         err = qlcnic_alloc_adapter_resources(adapter);
2251         if (err)
2252                 goto err_out_free_wq;
2253
2254         adapter->dev_rst_time = jiffies;
2255         adapter->ahw->revision_id = pdev->revision;
2256         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2257                 adapter->fdb_mac_learn = true;
2258         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2259                 adapter->drv_mac_learn = true;
2260
2261         rwlock_init(&adapter->ahw->crb_lock);
2262         mutex_init(&adapter->ahw->mem_lock);
2263
2264         INIT_LIST_HEAD(&adapter->mac_list);
2265
2266         qlcnic_register_dcb(adapter);
2267
2268         if (qlcnic_82xx_check(adapter)) {
2269                 qlcnic_check_vf(adapter, ent);
2270                 adapter->portnum = adapter->ahw->pci_func;
2271                 err = qlcnic_start_firmware(adapter);
2272                 if (err) {
2273                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2274                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2275                         goto err_out_maintenance_mode;
2276                 }
2277
2278                 qlcnic_get_multiq_capability(adapter);
2279
2280                 if ((adapter->ahw->act_pci_func > 2) &&
2281                     qlcnic_check_multi_tx(adapter)) {
2282                         adapter->max_drv_tx_rings = QLCNIC_DEF_NUM_TX_RINGS;
2283                         dev_info(&adapter->pdev->dev,
2284                                  "vNIC mode enabled, Set max TX rings = %d\n",
2285                                  adapter->max_drv_tx_rings);
2286                 }
2287
2288                 if (!qlcnic_check_multi_tx(adapter)) {
2289                         clear_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
2290                         adapter->max_drv_tx_rings = 1;
2291                 }
2292                 err = qlcnic_setup_idc_param(adapter);
2293                 if (err)
2294                         goto err_out_free_hw;
2295
2296                 adapter->flags |= QLCNIC_NEED_FLR;
2297
2298                 dcb = adapter->dcb;
2299
2300                 if (dcb && qlcnic_dcb_attach(dcb))
2301                         qlcnic_clear_dcb_ops(dcb);
2302
2303         } else if (qlcnic_83xx_check(adapter)) {
2304                 adapter->max_drv_tx_rings = 1;
2305                 qlcnic_83xx_check_vf(adapter, ent);
2306                 adapter->portnum = adapter->ahw->pci_func;
2307                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2308                 if (err) {
2309                         dev_err(&pdev->dev, "%s: failed\n", __func__);
2310                         goto err_out_free_hw;
2311                 }
2312                 if (qlcnic_sriov_vf_check(adapter))
2313                         return 0;
2314         } else {
2315                 dev_err(&pdev->dev,
2316                         "%s: failed. Please Reboot\n", __func__);
2317                 goto err_out_free_hw;
2318         }
2319
2320         if (qlcnic_read_mac_addr(adapter))
2321                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2322
2323         qlcnic_read_phys_port_id(adapter);
2324
2325         if (adapter->portnum == 0) {
2326                 qlcnic_get_board_name(adapter, board_name);
2327
2328                 pr_info("%s: %s Board Chip rev 0x%x\n",
2329                         module_name(THIS_MODULE),
2330                         board_name, adapter->ahw->revision_id);
2331         }
2332
2333         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2334             !!qlcnic_use_msi)
2335                 dev_warn(&pdev->dev,
2336                          "Device does not support MSI interrupts\n");
2337
2338         if (qlcnic_82xx_check(adapter)) {
2339                 err = qlcnic_setup_intr(adapter, 0, 0);
2340                 if (err) {
2341                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2342                         goto err_out_disable_msi;
2343                 }
2344         }
2345
2346         err = qlcnic_get_act_pci_func(adapter);
2347         if (err)
2348                 goto err_out_disable_mbx_intr;
2349
2350         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2351         if (err)
2352                 goto err_out_disable_mbx_intr;
2353
2354         if (adapter->portnum == 0)
2355                 qlcnic_set_drv_version(adapter);
2356
2357         pci_set_drvdata(pdev, adapter);
2358
2359         if (qlcnic_82xx_check(adapter))
2360                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2361                                      FW_POLL_DELAY);
2362
2363         switch (adapter->ahw->port_type) {
2364         case QLCNIC_GBE:
2365                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2366                                 adapter->netdev->name);
2367                 break;
2368         case QLCNIC_XGBE:
2369                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2370                                 adapter->netdev->name);
2371                 break;
2372         }
2373
2374         if (adapter->drv_mac_learn)
2375                 qlcnic_alloc_lb_filters_mem(adapter);
2376
2377         qlcnic_add_sysfs(adapter);
2378
2379         return 0;
2380
2381 err_out_disable_mbx_intr:
2382         if (qlcnic_83xx_check(adapter))
2383                 qlcnic_83xx_free_mbx_intr(adapter);
2384
2385 err_out_disable_msi:
2386         qlcnic_teardown_intr(adapter);
2387         qlcnic_cancel_idc_work(adapter);
2388         qlcnic_clr_all_drv_state(adapter, 0);
2389
2390 err_out_free_hw:
2391         qlcnic_free_adapter_resources(adapter);
2392
2393 err_out_free_wq:
2394         destroy_workqueue(adapter->qlcnic_wq);
2395
2396 err_out_free_netdev:
2397         free_netdev(netdev);
2398
2399 err_out_iounmap:
2400         qlcnic_cleanup_pci_map(ahw);
2401
2402 err_out_free_hw_res:
2403         kfree(ahw);
2404
2405 err_out_free_res:
2406         pci_release_regions(pdev);
2407
2408 err_out_disable_pdev:
2409         pci_disable_device(pdev);
2410         return err;
2411
2412 err_out_maintenance_mode:
2413         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2414         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops);
2415         err = register_netdev(netdev);
2416
2417         if (err) {
2418                 dev_err(&pdev->dev, "Failed to register net device\n");
2419                 qlcnic_clr_all_drv_state(adapter, 0);
2420                 goto err_out_free_hw;
2421         }
2422
2423         pci_set_drvdata(pdev, adapter);
2424         qlcnic_add_sysfs(adapter);
2425
2426         return 0;
2427 }
2428
2429 static void qlcnic_remove(struct pci_dev *pdev)
2430 {
2431         struct qlcnic_adapter *adapter;
2432         struct net_device *netdev;
2433         struct qlcnic_hardware_context *ahw;
2434
2435         adapter = pci_get_drvdata(pdev);
2436         if (adapter == NULL)
2437                 return;
2438
2439         netdev = adapter->netdev;
2440         qlcnic_sriov_pf_disable(adapter);
2441
2442         qlcnic_cancel_idc_work(adapter);
2443         ahw = adapter->ahw;
2444
2445         qlcnic_dcb_free(adapter->dcb);
2446
2447         unregister_netdev(netdev);
2448         qlcnic_sriov_cleanup(adapter);
2449
2450         if (qlcnic_83xx_check(adapter)) {
2451                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2452                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2453                 qlcnic_83xx_free_mbx_intr(adapter);
2454                 qlcnic_83xx_detach_mailbox_work(adapter);
2455                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2456                 kfree(ahw->fw_info);
2457         }
2458
2459         qlcnic_detach(adapter);
2460
2461         if (adapter->npars != NULL)
2462                 kfree(adapter->npars);
2463         if (adapter->eswitch != NULL)
2464                 kfree(adapter->eswitch);
2465
2466         if (qlcnic_82xx_check(adapter))
2467                 qlcnic_clr_all_drv_state(adapter, 0);
2468
2469         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2470
2471         qlcnic_free_lb_filters_mem(adapter);
2472
2473         qlcnic_teardown_intr(adapter);
2474
2475         qlcnic_remove_sysfs(adapter);
2476
2477         qlcnic_cleanup_pci_map(adapter->ahw);
2478
2479         qlcnic_release_firmware(adapter);
2480
2481         pci_disable_pcie_error_reporting(pdev);
2482         pci_release_regions(pdev);
2483         pci_disable_device(pdev);
2484
2485         if (adapter->qlcnic_wq) {
2486                 destroy_workqueue(adapter->qlcnic_wq);
2487                 adapter->qlcnic_wq = NULL;
2488         }
2489
2490         qlcnic_free_adapter_resources(adapter);
2491         kfree(ahw);
2492         free_netdev(netdev);
2493 }
2494
2495 static void qlcnic_shutdown(struct pci_dev *pdev)
2496 {
2497         if (__qlcnic_shutdown(pdev))
2498                 return;
2499
2500         pci_disable_device(pdev);
2501 }
2502
2503 #ifdef CONFIG_PM
2504 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2505 {
2506         int retval;
2507
2508         retval = __qlcnic_shutdown(pdev);
2509         if (retval)
2510                 return retval;
2511
2512         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2513         return 0;
2514 }
2515
2516 static int qlcnic_resume(struct pci_dev *pdev)
2517 {
2518         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2519         int err;
2520
2521         err = pci_enable_device(pdev);
2522         if (err)
2523                 return err;
2524
2525         pci_set_power_state(pdev, PCI_D0);
2526         pci_set_master(pdev);
2527         pci_restore_state(pdev);
2528
2529         return  __qlcnic_resume(adapter);
2530 }
2531 #endif
2532
2533 static int qlcnic_open(struct net_device *netdev)
2534 {
2535         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2536         u32 state;
2537         int err;
2538
2539         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2540         if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) {
2541                 netdev_err(netdev, "%s: Device is in FAILED state\n", __func__);
2542
2543                 return -EIO;
2544         }
2545
2546         netif_carrier_off(netdev);
2547
2548         err = qlcnic_attach(adapter);
2549         if (err)
2550                 return err;
2551
2552         err = __qlcnic_up(adapter, netdev);
2553         if (err)
2554                 goto err_out;
2555
2556         netif_tx_start_all_queues(netdev);
2557
2558         return 0;
2559
2560 err_out:
2561         qlcnic_detach(adapter);
2562         return err;
2563 }
2564
2565 /*
2566  * qlcnic_close - Disables a network interface entry point
2567  */
2568 static int qlcnic_close(struct net_device *netdev)
2569 {
2570         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2571
2572         __qlcnic_down(adapter, netdev);
2573
2574         return 0;
2575 }
2576
2577 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2578 {
2579         void *head;
2580         int i;
2581         struct net_device *netdev = adapter->netdev;
2582         u32 filter_size = 0;
2583         u16 act_pci_func = 0;
2584
2585         if (adapter->fhash.fmax && adapter->fhash.fhead)
2586                 return;
2587
2588         act_pci_func = adapter->ahw->act_pci_func;
2589         spin_lock_init(&adapter->mac_learn_lock);
2590         spin_lock_init(&adapter->rx_mac_learn_lock);
2591
2592         if (qlcnic_82xx_check(adapter)) {
2593                 filter_size = QLCNIC_LB_MAX_FILTERS;
2594                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2595         } else {
2596                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2597                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2598         }
2599
2600         head = kcalloc(adapter->fhash.fbucket_size,
2601                        sizeof(struct hlist_head), GFP_ATOMIC);
2602
2603         if (!head)
2604                 return;
2605
2606         adapter->fhash.fmax = (filter_size / act_pci_func);
2607         adapter->fhash.fhead = head;
2608
2609         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2610                     act_pci_func, adapter->fhash.fmax);
2611
2612         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2613                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2614
2615         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2616
2617         head = kcalloc(adapter->rx_fhash.fbucket_size,
2618                        sizeof(struct hlist_head), GFP_ATOMIC);
2619
2620         if (!head)
2621                 return;
2622
2623         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2624         adapter->rx_fhash.fhead = head;
2625
2626         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2627                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2628 }
2629
2630 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2631 {
2632         if (adapter->fhash.fmax && adapter->fhash.fhead)
2633                 kfree(adapter->fhash.fhead);
2634
2635         adapter->fhash.fhead = NULL;
2636         adapter->fhash.fmax = 0;
2637
2638         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2639                 kfree(adapter->rx_fhash.fhead);
2640
2641         adapter->rx_fhash.fmax = 0;
2642         adapter->rx_fhash.fhead = NULL;
2643 }
2644
2645 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2646 {
2647         struct net_device *netdev = adapter->netdev;
2648         u32 temp_state, temp_val, temp = 0;
2649         int rv = 0;
2650
2651         if (qlcnic_83xx_check(adapter))
2652                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2653
2654         if (qlcnic_82xx_check(adapter))
2655                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2656
2657         temp_state = qlcnic_get_temp_state(temp);
2658         temp_val = qlcnic_get_temp_val(temp);
2659
2660         if (temp_state == QLCNIC_TEMP_PANIC) {
2661                 dev_err(&netdev->dev,
2662                        "Device temperature %d degrees C exceeds"
2663                        " maximum allowed. Hardware has been shut down.\n",
2664                        temp_val);
2665                 rv = 1;
2666         } else if (temp_state == QLCNIC_TEMP_WARN) {
2667                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2668                         dev_err(&netdev->dev,
2669                                "Device temperature %d degrees C "
2670                                "exceeds operating range."
2671                                " Immediate action needed.\n",
2672                                temp_val);
2673                 }
2674         } else {
2675                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2676                         dev_info(&netdev->dev,
2677                                "Device temperature is now %d degrees C"
2678                                " in normal range.\n", temp_val);
2679                 }
2680         }
2681         adapter->ahw->temp = temp_state;
2682         return rv;
2683 }
2684
2685 static void qlcnic_tx_timeout(struct net_device *netdev)
2686 {
2687         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2688         struct qlcnic_host_tx_ring *tx_ring;
2689         int ring;
2690
2691         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2692                 return;
2693
2694         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
2695                 netdev_info(netdev, "Tx timeout, reset the adapter.\n");
2696                 if (qlcnic_82xx_check(adapter))
2697                         adapter->need_fw_reset = 1;
2698                 else if (qlcnic_83xx_check(adapter))
2699                         qlcnic_83xx_idc_request_reset(adapter,
2700                                                       QLCNIC_FORCE_FW_DUMP_KEY);
2701         } else {
2702                 netdev_info(netdev, "Tx timeout, reset adapter context.\n");
2703                 if (qlcnic_82xx_check(adapter)) {
2704                         for (ring = 0; ring < adapter->max_drv_tx_rings;
2705                              ring++) {
2706                                 tx_ring = &adapter->tx_ring[ring];
2707                                 dev_info(&netdev->dev, "ring=%d\n", ring);
2708                                 dev_info(&netdev->dev, "crb_intr_mask=%d\n",
2709                                          readl(tx_ring->crb_intr_mask));
2710                                 dev_info(&netdev->dev, "producer=%d\n",
2711                                          readl(tx_ring->crb_cmd_producer));
2712                                 dev_info(&netdev->dev, "sw_consumer = %d\n",
2713                                          tx_ring->sw_consumer);
2714                                 dev_info(&netdev->dev, "hw_consumer = %d\n",
2715                                          le32_to_cpu(*(tx_ring->hw_consumer)));
2716                                 dev_info(&netdev->dev, "xmit-on=%llu\n",
2717                                          tx_ring->xmit_on);
2718                                 dev_info(&netdev->dev, "xmit-off=%llu\n",
2719                                          tx_ring->xmit_off);
2720                         }
2721                 }
2722                 adapter->ahw->reset_context = 1;
2723         }
2724 }
2725
2726 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2727 {
2728         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2729         struct net_device_stats *stats = &netdev->stats;
2730
2731         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2732         stats->tx_packets = adapter->stats.xmitfinished;
2733         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2734         stats->tx_bytes = adapter->stats.txbytes;
2735         stats->rx_dropped = adapter->stats.rxdropped;
2736         stats->tx_dropped = adapter->stats.txdropped;
2737
2738         return stats;
2739 }
2740
2741 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2742 {
2743         u32 status;
2744
2745         status = readl(adapter->isr_int_vec);
2746
2747         if (!(status & adapter->ahw->int_vec_bit))
2748                 return IRQ_NONE;
2749
2750         /* check interrupt state machine, to be sure */
2751         status = readl(adapter->crb_int_state_reg);
2752         if (!ISR_LEGACY_INT_TRIGGERED(status))
2753                 return IRQ_NONE;
2754
2755         writel(0xffffffff, adapter->tgt_status_reg);
2756         /* read twice to ensure write is flushed */
2757         readl(adapter->isr_int_vec);
2758         readl(adapter->isr_int_vec);
2759
2760         return IRQ_HANDLED;
2761 }
2762
2763 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2764 {
2765         struct qlcnic_host_sds_ring *sds_ring = data;
2766         struct qlcnic_adapter *adapter = sds_ring->adapter;
2767
2768         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2769                 goto done;
2770         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2771                 writel(0xffffffff, adapter->tgt_status_reg);
2772                 goto done;
2773         }
2774
2775         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2776                 return IRQ_NONE;
2777
2778 done:
2779         adapter->ahw->diag_cnt++;
2780         qlcnic_enable_int(sds_ring);
2781         return IRQ_HANDLED;
2782 }
2783
2784 static irqreturn_t qlcnic_intr(int irq, void *data)
2785 {
2786         struct qlcnic_host_sds_ring *sds_ring = data;
2787         struct qlcnic_adapter *adapter = sds_ring->adapter;
2788
2789         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2790                 return IRQ_NONE;
2791
2792         napi_schedule(&sds_ring->napi);
2793
2794         return IRQ_HANDLED;
2795 }
2796
2797 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2798 {
2799         struct qlcnic_host_sds_ring *sds_ring = data;
2800         struct qlcnic_adapter *adapter = sds_ring->adapter;
2801
2802         /* clear interrupt */
2803         writel(0xffffffff, adapter->tgt_status_reg);
2804
2805         napi_schedule(&sds_ring->napi);
2806         return IRQ_HANDLED;
2807 }
2808
2809 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2810 {
2811         struct qlcnic_host_sds_ring *sds_ring = data;
2812
2813         napi_schedule(&sds_ring->napi);
2814         return IRQ_HANDLED;
2815 }
2816
2817 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2818 {
2819         struct qlcnic_host_tx_ring *tx_ring = data;
2820
2821         napi_schedule(&tx_ring->napi);
2822         return IRQ_HANDLED;
2823 }
2824
2825 #ifdef CONFIG_NET_POLL_CONTROLLER
2826 static void qlcnic_poll_controller(struct net_device *netdev)
2827 {
2828         int ring;
2829         struct qlcnic_host_sds_ring *sds_ring;
2830         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2831         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2832
2833         disable_irq(adapter->irq);
2834         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2835                 sds_ring = &recv_ctx->sds_rings[ring];
2836                 qlcnic_intr(adapter->irq, sds_ring);
2837         }
2838         enable_irq(adapter->irq);
2839 }
2840 #endif
2841
2842 static void
2843 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2844 {
2845         u32 val;
2846
2847         val = adapter->portnum & 0xf;
2848         val |= encoding << 7;
2849         val |= (jiffies - adapter->dev_rst_time) << 8;
2850
2851         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2852         adapter->dev_rst_time = jiffies;
2853 }
2854
2855 static int
2856 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2857 {
2858         u32  val;
2859
2860         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2861                         state != QLCNIC_DEV_NEED_QUISCENT);
2862
2863         if (qlcnic_api_lock(adapter))
2864                 return -EIO;
2865
2866         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2867
2868         if (state == QLCNIC_DEV_NEED_RESET)
2869                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2870         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2871                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2872
2873         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2874
2875         qlcnic_api_unlock(adapter);
2876
2877         return 0;
2878 }
2879
2880 static int
2881 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2882 {
2883         u32  val;
2884
2885         if (qlcnic_api_lock(adapter))
2886                 return -EBUSY;
2887
2888         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2889         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2890         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2891
2892         qlcnic_api_unlock(adapter);
2893
2894         return 0;
2895 }
2896
2897 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2898 {
2899         u32  val;
2900
2901         if (qlcnic_api_lock(adapter))
2902                 goto err;
2903
2904         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2905         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2906         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2907
2908         if (failed) {
2909                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2910                                     QLCNIC_DEV_FAILED);
2911                 dev_info(&adapter->pdev->dev,
2912                                 "Device state set to Failed. Please Reboot\n");
2913         } else if (!(val & 0x11111111))
2914                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2915                                     QLCNIC_DEV_COLD);
2916
2917         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2918         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2919         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2920
2921         qlcnic_api_unlock(adapter);
2922 err:
2923         adapter->fw_fail_cnt = 0;
2924         adapter->flags &= ~QLCNIC_FW_HANG;
2925         clear_bit(__QLCNIC_START_FW, &adapter->state);
2926         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2927 }
2928
2929 /* Grab api lock, before checking state */
2930 static int
2931 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2932 {
2933         int act, state, active_mask;
2934         struct qlcnic_hardware_context *ahw = adapter->ahw;
2935
2936         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2937         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2938
2939         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2940                 active_mask = (~(1 << (ahw->pci_func * 4)));
2941                 act = act & active_mask;
2942         }
2943
2944         if (((state & 0x11111111) == (act & 0x11111111)) ||
2945                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2946                 return 0;
2947         else
2948                 return 1;
2949 }
2950
2951 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2952 {
2953         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2954
2955         if (val != QLCNIC_DRV_IDC_VER) {
2956                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2957                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2958         }
2959
2960         return 0;
2961 }
2962
2963 static int
2964 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2965 {
2966         u32 val, prev_state;
2967         u8 dev_init_timeo = adapter->dev_init_timeo;
2968         u8 portnum = adapter->portnum;
2969         u8 ret;
2970
2971         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2972                 return 1;
2973
2974         if (qlcnic_api_lock(adapter))
2975                 return -1;
2976
2977         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2978         if (!(val & (1 << (portnum * 4)))) {
2979                 QLC_DEV_SET_REF_CNT(val, portnum);
2980                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2981         }
2982
2983         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2984         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2985
2986         switch (prev_state) {
2987         case QLCNIC_DEV_COLD:
2988                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2989                                     QLCNIC_DEV_INITIALIZING);
2990                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2991                                     QLCNIC_DRV_IDC_VER);
2992                 qlcnic_idc_debug_info(adapter, 0);
2993                 qlcnic_api_unlock(adapter);
2994                 return 1;
2995
2996         case QLCNIC_DEV_READY:
2997                 ret = qlcnic_check_idc_ver(adapter);
2998                 qlcnic_api_unlock(adapter);
2999                 return ret;
3000
3001         case QLCNIC_DEV_NEED_RESET:
3002                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3003                 QLC_DEV_SET_RST_RDY(val, portnum);
3004                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3005                 break;
3006
3007         case QLCNIC_DEV_NEED_QUISCENT:
3008                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3009                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3010                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3011                 break;
3012
3013         case QLCNIC_DEV_FAILED:
3014                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3015                 qlcnic_api_unlock(adapter);
3016                 return -1;
3017
3018         case QLCNIC_DEV_INITIALIZING:
3019         case QLCNIC_DEV_QUISCENT:
3020                 break;
3021         }
3022
3023         qlcnic_api_unlock(adapter);
3024
3025         do {
3026                 msleep(1000);
3027                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3028
3029                 if (prev_state == QLCNIC_DEV_QUISCENT)
3030                         continue;
3031         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3032
3033         if (!dev_init_timeo) {
3034                 dev_err(&adapter->pdev->dev,
3035                         "Waiting for device to initialize timeout\n");
3036                 return -1;
3037         }
3038
3039         if (qlcnic_api_lock(adapter))
3040                 return -1;
3041
3042         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3043         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3044         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3045
3046         ret = qlcnic_check_idc_ver(adapter);
3047         qlcnic_api_unlock(adapter);
3048
3049         return ret;
3050 }
3051
3052 static void
3053 qlcnic_fwinit_work(struct work_struct *work)
3054 {
3055         struct qlcnic_adapter *adapter = container_of(work,
3056                         struct qlcnic_adapter, fw_work.work);
3057         u32 dev_state = 0xf;
3058         u32 val;
3059
3060         if (qlcnic_api_lock(adapter))
3061                 goto err_ret;
3062
3063         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3064         if (dev_state == QLCNIC_DEV_QUISCENT ||
3065             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3066                 qlcnic_api_unlock(adapter);
3067                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3068                                                 FW_POLL_DELAY * 2);
3069                 return;
3070         }
3071
3072         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3073                 qlcnic_api_unlock(adapter);
3074                 goto wait_npar;
3075         }
3076
3077         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3078             dev_state == QLCNIC_DEV_READY) {
3079                 dev_info(&adapter->pdev->dev, "Detected state change from "
3080                                 "DEV_NEED_RESET, skipping ack check\n");
3081                 goto skip_ack_check;
3082         }
3083
3084         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3085                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3086                                         adapter->reset_ack_timeo);
3087                 goto skip_ack_check;
3088         }
3089
3090         if (!qlcnic_check_drv_state(adapter)) {
3091 skip_ack_check:
3092                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3093
3094                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3095                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3096                                             QLCNIC_DEV_INITIALIZING);
3097                         set_bit(__QLCNIC_START_FW, &adapter->state);
3098                         QLCDB(adapter, DRV, "Restarting fw\n");
3099                         qlcnic_idc_debug_info(adapter, 0);
3100                         val = QLC_SHARED_REG_RD32(adapter,
3101                                                   QLCNIC_CRB_DRV_STATE);
3102                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3103                         QLC_SHARED_REG_WR32(adapter,
3104                                             QLCNIC_CRB_DRV_STATE, val);
3105                 }
3106
3107                 qlcnic_api_unlock(adapter);
3108
3109                 rtnl_lock();
3110                 if (qlcnic_check_fw_dump_state(adapter) &&
3111                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3112                         QLCDB(adapter, DRV, "Take FW dump\n");
3113                         qlcnic_dump_fw(adapter);
3114                         adapter->flags |= QLCNIC_FW_HANG;
3115                 }
3116                 rtnl_unlock();
3117
3118                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3119                 if (!adapter->nic_ops->start_firmware(adapter)) {
3120                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3121                         adapter->fw_wait_cnt = 0;
3122                         return;
3123                 }
3124                 goto err_ret;
3125         }
3126
3127         qlcnic_api_unlock(adapter);
3128
3129 wait_npar:
3130         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3131         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3132
3133         switch (dev_state) {
3134         case QLCNIC_DEV_READY:
3135                 if (!qlcnic_start_firmware(adapter)) {
3136                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3137                         adapter->fw_wait_cnt = 0;
3138                         return;
3139                 }
3140         case QLCNIC_DEV_FAILED:
3141                 break;
3142         default:
3143                 qlcnic_schedule_work(adapter,
3144                         qlcnic_fwinit_work, FW_POLL_DELAY);
3145                 return;
3146         }
3147
3148 err_ret:
3149         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3150                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3151         netif_device_attach(adapter->netdev);
3152         qlcnic_clr_all_drv_state(adapter, 0);
3153 }
3154
3155 static void
3156 qlcnic_detach_work(struct work_struct *work)
3157 {
3158         struct qlcnic_adapter *adapter = container_of(work,
3159                         struct qlcnic_adapter, fw_work.work);
3160         struct net_device *netdev = adapter->netdev;
3161         u32 status;
3162
3163         netif_device_detach(netdev);
3164
3165         /* Dont grab rtnl lock during Quiscent mode */
3166         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3167                 if (netif_running(netdev))
3168                         __qlcnic_down(adapter, netdev);
3169         } else
3170                 qlcnic_down(adapter, netdev);
3171
3172         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3173
3174         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3175                 dev_err(&adapter->pdev->dev,
3176                         "Detaching the device: peg halt status1=0x%x\n",
3177                                         status);
3178
3179                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3180                         dev_err(&adapter->pdev->dev,
3181                         "On board active cooling fan failed. "
3182                                 "Device has been halted.\n");
3183                         dev_err(&adapter->pdev->dev,
3184                                 "Replace the adapter.\n");
3185                 }
3186
3187                 goto err_ret;
3188         }
3189
3190         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3191                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3192                         adapter->ahw->temp);
3193                 goto err_ret;
3194         }
3195
3196         /* Dont ack if this instance is the reset owner */
3197         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3198                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3199                         dev_err(&adapter->pdev->dev,
3200                                 "Failed to set driver state,"
3201                                         "detaching the device.\n");
3202                         goto err_ret;
3203                 }
3204         }
3205
3206         adapter->fw_wait_cnt = 0;
3207
3208         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3209
3210         return;
3211
3212 err_ret:
3213         netif_device_attach(netdev);
3214         qlcnic_clr_all_drv_state(adapter, 1);
3215 }
3216
3217 /*Transit NPAR state to NON Operational */
3218 static void
3219 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3220 {
3221         u32 state;
3222
3223         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3224         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3225                 return;
3226
3227         if (qlcnic_api_lock(adapter))
3228                 return;
3229         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3230                             QLCNIC_DEV_NPAR_NON_OPER);
3231         qlcnic_api_unlock(adapter);
3232 }
3233
3234 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
3235 {
3236         u32 state, xg_val = 0, gb_val = 0;
3237
3238         qlcnic_xg_set_xg0_mask(xg_val);
3239         qlcnic_xg_set_xg1_mask(xg_val);
3240         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3241         qlcnic_gb_set_gb0_mask(gb_val);
3242         qlcnic_gb_set_gb1_mask(gb_val);
3243         qlcnic_gb_set_gb2_mask(gb_val);
3244         qlcnic_gb_set_gb3_mask(gb_val);
3245         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3246         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3247                                 " on all ports\n");
3248         adapter->need_fw_reset = 1;
3249
3250         if (qlcnic_api_lock(adapter))
3251                 return;
3252
3253         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3254         if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) {
3255                 netdev_err(adapter->netdev, "%s: Device is in FAILED state\n",
3256                            __func__);
3257                 qlcnic_api_unlock(adapter);
3258
3259                 return;
3260         }
3261
3262         if (state == QLCNIC_DEV_READY) {
3263                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3264                                     QLCNIC_DEV_NEED_RESET);
3265                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3266                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3267                 qlcnic_idc_debug_info(adapter, 0);
3268         }
3269
3270         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3271                             QLCNIC_DEV_NPAR_NON_OPER);
3272         qlcnic_api_unlock(adapter);
3273 }
3274
3275 /* Transit to NPAR READY state from NPAR NOT READY state */
3276 static void
3277 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3278 {
3279         if (qlcnic_api_lock(adapter))
3280                 return;
3281
3282         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3283                             QLCNIC_DEV_NPAR_OPER);
3284         QLCDB(adapter, DRV, "NPAR operational state set\n");
3285
3286         qlcnic_api_unlock(adapter);
3287 }
3288
3289 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3290                           work_func_t func, int delay)
3291 {
3292         if (test_bit(__QLCNIC_AER, &adapter->state))
3293                 return;
3294
3295         INIT_DELAYED_WORK(&adapter->fw_work, func);
3296         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3297                            round_jiffies_relative(delay));
3298 }
3299
3300 static void
3301 qlcnic_attach_work(struct work_struct *work)
3302 {
3303         struct qlcnic_adapter *adapter = container_of(work,
3304                                 struct qlcnic_adapter, fw_work.work);
3305         struct net_device *netdev = adapter->netdev;
3306         u32 npar_state;
3307
3308         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3309                 npar_state = QLC_SHARED_REG_RD32(adapter,
3310                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3311                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3312                         qlcnic_clr_all_drv_state(adapter, 0);
3313                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3314                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3315                                                         FW_POLL_DELAY);
3316                 else
3317                         goto attach;
3318                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3319                 return;
3320         }
3321 attach:
3322         qlcnic_dcb_get_info(adapter->dcb);
3323
3324         if (netif_running(netdev)) {
3325                 if (qlcnic_up(adapter, netdev))
3326                         goto done;
3327
3328                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3329         }
3330
3331 done:
3332         netif_device_attach(netdev);
3333         adapter->fw_fail_cnt = 0;
3334         adapter->flags &= ~QLCNIC_FW_HANG;
3335         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3336         if (adapter->portnum == 0)
3337                 qlcnic_set_drv_version(adapter);
3338
3339         if (!qlcnic_clr_drv_state(adapter))
3340                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3341                                                         FW_POLL_DELAY);
3342 }
3343
3344 static int
3345 qlcnic_check_health(struct qlcnic_adapter *adapter)
3346 {
3347         struct qlcnic_hardware_context *ahw = adapter->ahw;
3348         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3349         u32 state = 0, heartbeat;
3350         u32 peg_status;
3351         int err = 0;
3352
3353         if (qlcnic_check_temp(adapter))
3354                 goto detach;
3355
3356         if (adapter->need_fw_reset)
3357                 qlcnic_dev_request_reset(adapter, 0);
3358
3359         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3360         if (state == QLCNIC_DEV_NEED_RESET) {
3361                 qlcnic_set_npar_non_operational(adapter);
3362                 adapter->need_fw_reset = 1;
3363         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3364                 goto detach;
3365
3366         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3367         if (heartbeat != adapter->heartbeat) {
3368                 adapter->heartbeat = heartbeat;
3369                 adapter->fw_fail_cnt = 0;
3370                 if (adapter->need_fw_reset)
3371                         goto detach;
3372
3373                 if (ahw->reset_context && qlcnic_auto_fw_reset)
3374                         qlcnic_reset_hw_context(adapter);
3375
3376                 return 0;
3377         }
3378
3379         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3380                 return 0;
3381
3382         adapter->flags |= QLCNIC_FW_HANG;
3383
3384         qlcnic_dev_request_reset(adapter, 0);
3385
3386         if (qlcnic_auto_fw_reset)
3387                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3388
3389         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3390         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3391         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3392                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3393                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3394                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3395                         "PEG_NET_4_PC: 0x%x\n",
3396                         peg_status,
3397                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3398                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3399                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3400                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3401                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3402                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3403         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3404                 dev_err(&adapter->pdev->dev,
3405                         "Firmware aborted with error code 0x00006700. "
3406                                 "Device is being reset.\n");
3407 detach:
3408         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3409                 QLCNIC_DEV_NEED_RESET;
3410
3411         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3412                                                       &adapter->state)) {
3413
3414                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3415                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3416         } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3417                    adapter->flags & QLCNIC_FW_RESET_OWNER) {
3418                 qlcnic_dump_fw(adapter);
3419         }
3420
3421         return 1;
3422 }
3423
3424 void qlcnic_fw_poll_work(struct work_struct *work)
3425 {
3426         struct qlcnic_adapter *adapter = container_of(work,
3427                                 struct qlcnic_adapter, fw_work.work);
3428
3429         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3430                 goto reschedule;
3431
3432
3433         if (qlcnic_check_health(adapter))
3434                 return;
3435
3436         if (adapter->fhash.fnum)
3437                 qlcnic_prune_lb_filters(adapter);
3438
3439 reschedule:
3440         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3441 }
3442
3443 static int qlcnic_is_first_func(struct pci_dev *pdev)
3444 {
3445         struct pci_dev *oth_pdev;
3446         int val = pdev->devfn;
3447
3448         while (val-- > 0) {
3449                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3450                         (pdev->bus), pdev->bus->number,
3451                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3452                 if (!oth_pdev)
3453                         continue;
3454
3455                 if (oth_pdev->current_state != PCI_D3cold) {
3456                         pci_dev_put(oth_pdev);
3457                         return 0;
3458                 }
3459                 pci_dev_put(oth_pdev);
3460         }
3461         return 1;
3462 }
3463
3464 static int qlcnic_attach_func(struct pci_dev *pdev)
3465 {
3466         int err, first_func;
3467         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3468         struct net_device *netdev = adapter->netdev;
3469
3470         pdev->error_state = pci_channel_io_normal;
3471
3472         err = pci_enable_device(pdev);
3473         if (err)
3474                 return err;
3475
3476         pci_set_master(pdev);
3477         pci_restore_state(pdev);
3478
3479         first_func = qlcnic_is_first_func(pdev);
3480
3481         if (qlcnic_api_lock(adapter))
3482                 return -EINVAL;
3483
3484         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3485                 adapter->need_fw_reset = 1;
3486                 set_bit(__QLCNIC_START_FW, &adapter->state);
3487                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3488                                     QLCNIC_DEV_INITIALIZING);
3489                 QLCDB(adapter, DRV, "Restarting fw\n");
3490         }
3491         qlcnic_api_unlock(adapter);
3492
3493         err = qlcnic_start_firmware(adapter);
3494         if (err)
3495                 return err;
3496
3497         qlcnic_clr_drv_state(adapter);
3498         kfree(adapter->msix_entries);
3499         adapter->msix_entries = NULL;
3500         err = qlcnic_setup_intr(adapter, 0, 0);
3501
3502         if (err) {
3503                 kfree(adapter->msix_entries);
3504                 netdev_err(netdev, "failed to setup interrupt\n");
3505                 return err;
3506         }
3507
3508         if (netif_running(netdev)) {
3509                 err = qlcnic_attach(adapter);
3510                 if (err) {
3511                         qlcnic_clr_all_drv_state(adapter, 1);
3512                         clear_bit(__QLCNIC_AER, &adapter->state);
3513                         netif_device_attach(netdev);
3514                         return err;
3515                 }
3516
3517                 err = qlcnic_up(adapter, netdev);
3518                 if (err)
3519                         goto done;
3520
3521                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3522         }
3523  done:
3524         netif_device_attach(netdev);
3525         return err;
3526 }
3527
3528 pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3529                                                pci_channel_state_t state)
3530 {
3531         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3532         struct net_device *netdev = adapter->netdev;
3533
3534         if (state == pci_channel_io_perm_failure)
3535                 return PCI_ERS_RESULT_DISCONNECT;
3536
3537         if (state == pci_channel_io_normal)
3538                 return PCI_ERS_RESULT_RECOVERED;
3539
3540         set_bit(__QLCNIC_AER, &adapter->state);
3541         netif_device_detach(netdev);
3542
3543         cancel_delayed_work_sync(&adapter->fw_work);
3544
3545         if (netif_running(netdev))
3546                 qlcnic_down(adapter, netdev);
3547
3548         qlcnic_detach(adapter);
3549         qlcnic_teardown_intr(adapter);
3550
3551         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3552
3553         pci_save_state(pdev);
3554         pci_disable_device(pdev);
3555
3556         return PCI_ERS_RESULT_NEED_RESET;
3557 }
3558
3559 pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3560 {
3561         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3562                                 PCI_ERS_RESULT_RECOVERED;
3563 }
3564
3565 void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3566 {
3567         u32 state;
3568         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3569
3570         pci_cleanup_aer_uncorrect_error_status(pdev);
3571         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3572         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3573                                                             &adapter->state))
3574                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3575                                      FW_POLL_DELAY);
3576 }
3577
3578 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3579                                                  pci_channel_state_t state)
3580 {
3581         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3582         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3583
3584         if (hw_ops->io_error_detected) {
3585                 return hw_ops->io_error_detected(pdev, state);
3586         } else {
3587                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3588                 return PCI_ERS_RESULT_DISCONNECT;
3589         }
3590 }
3591
3592 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3593 {
3594         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3595         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3596
3597         if (hw_ops->io_slot_reset) {
3598                 return hw_ops->io_slot_reset(pdev);
3599         } else {
3600                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3601                 return PCI_ERS_RESULT_DISCONNECT;
3602         }
3603 }
3604
3605 static void qlcnic_io_resume(struct pci_dev *pdev)
3606 {
3607         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3608         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3609
3610         if (hw_ops->io_resume)
3611                 hw_ops->io_resume(pdev);
3612         else
3613                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3614 }
3615
3616
3617 static int
3618 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3619 {
3620         int err;
3621
3622         err = qlcnic_can_start_firmware(adapter);
3623         if (err)
3624                 return err;
3625
3626         err = qlcnic_check_npar_opertional(adapter);
3627         if (err)
3628                 return err;
3629
3630         err = qlcnic_initialize_nic(adapter);
3631         if (err)
3632                 return err;
3633
3634         qlcnic_check_options(adapter);
3635
3636         err = qlcnic_set_eswitch_port_config(adapter);
3637         if (err)
3638                 return err;
3639
3640         adapter->need_fw_reset = 0;
3641
3642         return err;
3643 }
3644
3645 int qlcnic_validate_max_tx_rings(struct qlcnic_adapter *adapter, u32 txq)
3646 {
3647         struct net_device *netdev = adapter->netdev;
3648         u8 max_hw = QLCNIC_MAX_TX_RINGS;
3649         u32 max_allowed;
3650
3651         if (!qlcnic_use_msi_x && !qlcnic_use_msi) {
3652                 netdev_err(netdev, "No Multi TX-Q support in INT-x mode\n");
3653                 return -EINVAL;
3654         }
3655
3656         if (!qlcnic_check_multi_tx(adapter)) {
3657                 netdev_err(netdev, "No Multi TX-Q support\n");
3658                 return -EINVAL;
3659         }
3660
3661         if (txq > QLCNIC_MAX_TX_RINGS) {
3662                 netdev_err(netdev, "Invalid ring count\n");
3663                 return -EINVAL;
3664         }
3665
3666         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3667                                                  num_online_cpus()));
3668         if ((txq > max_allowed) || !is_power_of_2(txq)) {
3669                 if (!is_power_of_2(txq))
3670                         netdev_err(netdev,
3671                                    "TX queue should be a power of 2\n");
3672                 if (txq > num_online_cpus())
3673                         netdev_err(netdev,
3674                                    "Tx queue should not be higher than [%u], number of online CPUs in the system\n",
3675                                    num_online_cpus());
3676                 netdev_err(netdev, "Unable to configure %u Tx rings\n", txq);
3677                 return -EINVAL;
3678         }
3679
3680         return 0;
3681 }
3682
3683 int qlcnic_validate_max_rss(struct qlcnic_adapter *adapter,
3684                                 __u32 val)
3685 {
3686         struct net_device *netdev = adapter->netdev;
3687         u8 max_hw = adapter->ahw->max_rx_ques;
3688         u32 max_allowed;
3689
3690         if (!qlcnic_use_msi_x && !qlcnic_use_msi) {
3691                 netdev_err(netdev, "No RSS support in INT-x mode\n");
3692                 return -EINVAL;
3693         }
3694
3695         if (val > QLCNIC_MAX_SDS_RINGS) {
3696                 netdev_err(netdev, "RSS value should not be higher than %u\n",
3697                            QLCNIC_MAX_SDS_RINGS);
3698                 return -EINVAL;
3699         }
3700
3701         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3702                                                  num_online_cpus()));
3703         if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3704                 if (!is_power_of_2(val))
3705                         netdev_err(netdev, "RSS value should be a power of 2\n");
3706
3707                 if (val < 2)
3708                         netdev_err(netdev, "RSS value should not be lower than 2\n");
3709
3710                 if (val > max_hw)
3711                         netdev_err(netdev,
3712                                    "RSS value should not be higher than[%u], the max RSS rings supported by the adapter\n",
3713                                    max_hw);
3714
3715                 if (val > num_online_cpus())
3716                         netdev_err(netdev,
3717                                    "RSS value should not be higher than[%u], number of online CPUs in the system\n",
3718                                    num_online_cpus());
3719
3720                 netdev_err(netdev, "Unable to configure %u RSS rings\n", val);
3721
3722                 return -EINVAL;
3723         }
3724         return 0;
3725 }
3726
3727 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, int txq)
3728 {
3729         int err;
3730         struct net_device *netdev = adapter->netdev;
3731         int num_msix;
3732
3733         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3734                 return -EBUSY;
3735
3736         if (qlcnic_82xx_check(adapter) && !qlcnic_use_msi_x &&
3737             !qlcnic_use_msi) {
3738                 netdev_err(netdev, "No RSS support in INT-x mode\n");
3739                 return -EINVAL;
3740         }
3741
3742         netif_device_detach(netdev);
3743         if (netif_running(netdev))
3744                 __qlcnic_down(adapter, netdev);
3745
3746         qlcnic_detach(adapter);
3747
3748         if (qlcnic_82xx_check(adapter)) {
3749                 if (txq != 0)
3750                         adapter->max_drv_tx_rings = txq;
3751
3752                 if (qlcnic_check_multi_tx(adapter) &&
3753                     (txq > adapter->max_drv_tx_rings))
3754                         num_msix = adapter->max_drv_tx_rings;
3755                 else
3756                         num_msix = data;
3757         }
3758
3759         if (qlcnic_83xx_check(adapter)) {
3760                 qlcnic_83xx_free_mbx_intr(adapter);
3761                 qlcnic_83xx_enable_mbx_poll(adapter);
3762         }
3763
3764         netif_set_real_num_tx_queues(netdev, adapter->max_drv_tx_rings);
3765
3766         qlcnic_teardown_intr(adapter);
3767
3768         err = qlcnic_setup_intr(adapter, data, txq);
3769         if (err) {
3770                 kfree(adapter->msix_entries);
3771                 netdev_err(netdev, "failed to setup interrupt\n");
3772                 return err;
3773         }
3774
3775         if (qlcnic_83xx_check(adapter)) {
3776                 /* register for NIC IDC AEN Events */
3777                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3778                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3779                 qlcnic_83xx_disable_mbx_poll(adapter);
3780                 if (err) {
3781                         dev_err(&adapter->pdev->dev,
3782                                 "failed to setup mbx interrupt\n");
3783                         goto done;
3784                 }
3785         }
3786
3787         if (netif_running(netdev)) {
3788                 err = qlcnic_attach(adapter);
3789                 if (err)
3790                         goto done;
3791                 err = __qlcnic_up(adapter, netdev);
3792                 if (err)
3793                         goto done;
3794                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3795         }
3796 done:
3797         netif_device_attach(netdev);
3798         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3799         return err;
3800 }
3801
3802 #ifdef CONFIG_INET
3803
3804 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3805
3806 static void
3807 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3808                         struct net_device *dev, unsigned long event)
3809 {
3810         struct in_device *indev;
3811
3812         indev = in_dev_get(dev);
3813         if (!indev)
3814                 return;
3815
3816         for_ifa(indev) {
3817                 switch (event) {
3818                 case NETDEV_UP:
3819                         qlcnic_config_ipaddr(adapter,
3820                                         ifa->ifa_address, QLCNIC_IP_UP);
3821                         break;
3822                 case NETDEV_DOWN:
3823                         qlcnic_config_ipaddr(adapter,
3824                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3825                         break;
3826                 default:
3827                         break;
3828                 }
3829         } endfor_ifa(indev);
3830
3831         in_dev_put(indev);
3832 }
3833
3834 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3835 {
3836         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3837         struct net_device *dev;
3838         u16 vid;
3839
3840         qlcnic_config_indev_addr(adapter, netdev, event);
3841
3842         rcu_read_lock();
3843         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3844                 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
3845                 if (!dev)
3846                         continue;
3847                 qlcnic_config_indev_addr(adapter, dev, event);
3848         }
3849         rcu_read_unlock();
3850 }
3851
3852 static int qlcnic_netdev_event(struct notifier_block *this,
3853                                  unsigned long event, void *ptr)
3854 {
3855         struct qlcnic_adapter *adapter;
3856         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3857
3858 recheck:
3859         if (dev == NULL)
3860                 goto done;
3861
3862         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3863                 dev = vlan_dev_real_dev(dev);
3864                 goto recheck;
3865         }
3866
3867         if (!is_qlcnic_netdev(dev))
3868                 goto done;
3869
3870         adapter = netdev_priv(dev);
3871
3872         if (!adapter)
3873                 goto done;
3874
3875         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3876                 goto done;
3877
3878         qlcnic_config_indev_addr(adapter, dev, event);
3879 done:
3880         return NOTIFY_DONE;
3881 }
3882
3883 static int
3884 qlcnic_inetaddr_event(struct notifier_block *this,
3885                 unsigned long event, void *ptr)
3886 {
3887         struct qlcnic_adapter *adapter;
3888         struct net_device *dev;
3889
3890         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3891
3892         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3893
3894 recheck:
3895         if (dev == NULL)
3896                 goto done;
3897
3898         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3899                 dev = vlan_dev_real_dev(dev);
3900                 goto recheck;
3901         }
3902
3903         if (!is_qlcnic_netdev(dev))
3904                 goto done;
3905
3906         adapter = netdev_priv(dev);
3907
3908         if (!adapter)
3909                 goto done;
3910
3911         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3912                 goto done;
3913
3914         switch (event) {
3915         case NETDEV_UP:
3916                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3917
3918                 break;
3919         case NETDEV_DOWN:
3920                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3921
3922                 break;
3923         default:
3924                 break;
3925         }
3926
3927 done:
3928         return NOTIFY_DONE;
3929 }
3930
3931 static struct notifier_block    qlcnic_netdev_cb = {
3932         .notifier_call = qlcnic_netdev_event,
3933 };
3934
3935 static struct notifier_block qlcnic_inetaddr_cb = {
3936         .notifier_call = qlcnic_inetaddr_event,
3937 };
3938 #else
3939 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3940 { }
3941 #endif
3942 static const struct pci_error_handlers qlcnic_err_handler = {
3943         .error_detected = qlcnic_io_error_detected,
3944         .slot_reset = qlcnic_io_slot_reset,
3945         .resume = qlcnic_io_resume,
3946 };
3947
3948 static struct pci_driver qlcnic_driver = {
3949         .name = qlcnic_driver_name,
3950         .id_table = qlcnic_pci_tbl,
3951         .probe = qlcnic_probe,
3952         .remove = qlcnic_remove,
3953 #ifdef CONFIG_PM
3954         .suspend = qlcnic_suspend,
3955         .resume = qlcnic_resume,
3956 #endif
3957         .shutdown = qlcnic_shutdown,
3958         .err_handler = &qlcnic_err_handler,
3959 #ifdef CONFIG_QLCNIC_SRIOV
3960         .sriov_configure = qlcnic_pci_sriov_configure,
3961 #endif
3962
3963 };
3964
3965 static int __init qlcnic_init_module(void)
3966 {
3967         int ret;
3968
3969         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3970
3971 #ifdef CONFIG_INET
3972         register_netdevice_notifier(&qlcnic_netdev_cb);
3973         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3974 #endif
3975
3976         ret = pci_register_driver(&qlcnic_driver);
3977         if (ret) {
3978 #ifdef CONFIG_INET
3979                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3980                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3981 #endif
3982         }
3983
3984         return ret;
3985 }
3986
3987 module_init(qlcnic_init_module);
3988
3989 static void __exit qlcnic_exit_module(void)
3990 {
3991         pci_unregister_driver(&qlcnic_driver);
3992
3993 #ifdef CONFIG_INET
3994         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3995         unregister_netdevice_notifier(&qlcnic_netdev_cb);
3996 #endif
3997 }
3998
3999 module_exit(qlcnic_exit_module);