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 int qlcnic_config_npars;
  56 module_param(qlcnic_config_npars, int, 0444);
  57 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled)");
  58
  59 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  60 static void qlcnic_remove(struct pci_dev *pdev);
  61 static int qlcnic_open(struct net_device *netdev);
  62 static int qlcnic_close(struct net_device *netdev);
  63 static void qlcnic_tx_timeout(struct net_device *netdev);
  64 static void qlcnic_attach_work(struct work_struct *work);
  65 static void qlcnic_fwinit_work(struct work_struct *work);
  66 static void qlcnic_fw_poll_work(struct work_struct *work);
  67 #ifdef CONFIG_NET_POLL_CONTROLLER
  68 static void qlcnic_poll_controller(struct net_device *netdev);
  69 #endif
  70
  71 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  72 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
  73 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  74
  75 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  76 static irqreturn_t qlcnic_intr(int irq, void *data);
  77 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  78 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  79 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  80
  81 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  82 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  83
  84 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  85 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  86 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  87 static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
  88                                 struct qlcnic_esw_func_cfg *);
  89 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
  90 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
  91
  92 #define QLCNIC_IS_TSO_CAPABLE(adapter)  \
  93         ((adapter)->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO)
  94
  95 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  96 {
  97         struct qlcnic_hardware_context *ahw = adapter->ahw;
  98
  99         if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
 100                 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
 101         else
 102                 return 1;
 103 }
 104
 105 /*  PCI Device ID Table  */
 106 #define ENTRY(device) \
 107         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 108         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 109
 110 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 111         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 112         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 113         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
 114         {0,}
 115 };
 116
 117 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 118
 119
 120 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 121 {
 122         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 123 }
 124
 125 static const u32 msi_tgt_status[8] = {
 126         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 127         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 128         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 129         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 130 };
 131
 132 static const u32 qlcnic_reg_tbl[] = {
 133         0x1B20A8,       /* PEG_HALT_STAT1 */
 134         0x1B20AC,       /* PEG_HALT_STAT2 */
 135         0x1B20B0,       /* FW_HEARTBEAT */
 136         0x1B2100,       /* LOCK ID */
 137         0x1B2128,       /* FW_CAPABILITIES */
 138         0x1B2138,       /* drv active */
 139         0x1B2140,       /* dev state */
 140         0x1B2144,       /* drv state */
 141         0x1B2148,       /* drv scratch */
 142         0x1B214C,       /* dev partition info */
 143         0x1B2174,       /* drv idc ver */
 144         0x1B2150,       /* fw version major */
 145         0x1B2154,       /* fw version minor */
 146         0x1B2158,       /* fw version sub */
 147         0x1B219C,       /* npar state */
 148         0x1B21FC,       /* FW_IMG_VALID */
 149         0x1B2250,       /* CMD_PEG_STATE */
 150         0x1B233C,       /* RCV_PEG_STATE */
 151         0x1B23B4,       /* ASIC TEMP */
 152         0x1B216C,       /* FW api */
 153         0x1B2170,       /* drv op mode */
 154         0x13C010,       /* flash lock */
 155         0x13C014,       /* flash unlock */
 156 };
 157
 158 static const struct qlcnic_board_info qlcnic_boards[] = {
 159         { PCI_VENDOR_ID_QLOGIC,
 160           PCI_DEVICE_ID_QLOGIC_QLE834X,
 161           PCI_VENDOR_ID_QLOGIC,
 162           0x24e,
 163           "8300 Series Dual Port 10GbE Converged Network Adapter "
 164           "(TCP/IP Networking)" },
 165         { PCI_VENDOR_ID_QLOGIC,
 166           PCI_DEVICE_ID_QLOGIC_QLE834X,
 167           PCI_VENDOR_ID_QLOGIC,
 168           0x243,
 169           "8300 Series Single Port 10GbE Converged Network Adapter "
 170           "(TCP/IP Networking)" },
 171         { PCI_VENDOR_ID_QLOGIC,
 172           PCI_DEVICE_ID_QLOGIC_QLE834X,
 173           PCI_VENDOR_ID_QLOGIC,
 174           0x24a,
 175           "8300 Series Dual Port 10GbE Converged Network Adapter "
 176           "(TCP/IP Networking)" },
 177         { PCI_VENDOR_ID_QLOGIC,
 178           PCI_DEVICE_ID_QLOGIC_QLE834X,
 179           PCI_VENDOR_ID_QLOGIC,
 180           0x246,
 181           "8300 Series Dual Port 10GbE Converged Network Adapter "
 182           "(TCP/IP Networking)" },
 183         { PCI_VENDOR_ID_QLOGIC,
 184           PCI_DEVICE_ID_QLOGIC_QLE834X,
 185           PCI_VENDOR_ID_QLOGIC,
 186           0x252,
 187           "8300 Series Dual Port 10GbE Converged Network Adapter "
 188           "(TCP/IP Networking)" },
 189         { PCI_VENDOR_ID_QLOGIC,
 190           PCI_DEVICE_ID_QLOGIC_QLE834X,
 191           PCI_VENDOR_ID_QLOGIC,
 192           0x26e,
 193           "8300 Series Dual Port 10GbE Converged Network Adapter "
 194           "(TCP/IP Networking)" },
 195         { PCI_VENDOR_ID_QLOGIC,
 196           PCI_DEVICE_ID_QLOGIC_QLE834X,
 197           PCI_VENDOR_ID_QLOGIC,
 198           0x260,
 199           "8300 Series Dual Port 10GbE Converged Network Adapter "
 200           "(TCP/IP Networking)" },
 201         { PCI_VENDOR_ID_QLOGIC,
 202           PCI_DEVICE_ID_QLOGIC_QLE834X,
 203           PCI_VENDOR_ID_QLOGIC,
 204           0x266,
 205           "8300 Series Single Port 10GbE Converged Network Adapter "
 206           "(TCP/IP Networking)" },
 207         { PCI_VENDOR_ID_QLOGIC,
 208           PCI_DEVICE_ID_QLOGIC_QLE834X,
 209           PCI_VENDOR_ID_QLOGIC,
 210           0x269,
 211           "8300 Series Dual Port 10GbE Converged Network Adapter "
 212           "(TCP/IP Networking)" },
 213         { PCI_VENDOR_ID_QLOGIC,
 214           PCI_DEVICE_ID_QLOGIC_QLE834X,
 215           PCI_VENDOR_ID_QLOGIC,
 216           0x271,
 217           "8300 Series Dual Port 10GbE Converged Network Adapter "
 218           "(TCP/IP Networking)" },
 219         { PCI_VENDOR_ID_QLOGIC,
 220           PCI_DEVICE_ID_QLOGIC_QLE834X,
 221           0x0, 0x0, "8300 Series 1/10GbE Controller" },
 222         { PCI_VENDOR_ID_QLOGIC,
 223           PCI_DEVICE_ID_QLOGIC_QLE824X,
 224           PCI_VENDOR_ID_QLOGIC,
 225           0x203,
 226           "8200 Series Single Port 10GbE Converged Network Adapter"
 227           "(TCP/IP Networking)" },
 228         { PCI_VENDOR_ID_QLOGIC,
 229           PCI_DEVICE_ID_QLOGIC_QLE824X,
 230           PCI_VENDOR_ID_QLOGIC,
 231           0x207,
 232           "8200 Series Dual Port 10GbE Converged Network Adapter"
 233           "(TCP/IP Networking)" },
 234         { PCI_VENDOR_ID_QLOGIC,
 235           PCI_DEVICE_ID_QLOGIC_QLE824X,
 236           PCI_VENDOR_ID_QLOGIC,
 237           0x20b,
 238           "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
 239         { PCI_VENDOR_ID_QLOGIC,
 240           PCI_DEVICE_ID_QLOGIC_QLE824X,
 241           PCI_VENDOR_ID_QLOGIC,
 242           0x20c,
 243           "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
 244         { PCI_VENDOR_ID_QLOGIC,
 245           PCI_DEVICE_ID_QLOGIC_QLE824X,
 246           PCI_VENDOR_ID_QLOGIC,
 247           0x20f,
 248           "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
 249         { PCI_VENDOR_ID_QLOGIC,
 250           PCI_DEVICE_ID_QLOGIC_QLE824X,
 251           0x103c, 0x3733,
 252           "NC523SFP 10Gb 2-port Server Adapter" },
 253         { PCI_VENDOR_ID_QLOGIC,
 254           PCI_DEVICE_ID_QLOGIC_QLE824X,
 255           0x103c, 0x3346,
 256           "CN1000Q Dual Port Converged Network Adapter" },
 257         { PCI_VENDOR_ID_QLOGIC,
 258           PCI_DEVICE_ID_QLOGIC_QLE824X,
 259           PCI_VENDOR_ID_QLOGIC,
 260           0x210,
 261           "QME8242-k 10GbE Dual Port Mezzanine Card" },
 262         { PCI_VENDOR_ID_QLOGIC,
 263           PCI_DEVICE_ID_QLOGIC_QLE824X,
 264           0x0, 0x0, "cLOM8214 1/10GbE Controller" },
 265 };
 266
 267 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 268 #define QLC_MAX_SDS_RINGS       8
 269
 270 static const
 271 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 272
 273 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 274 {
 275         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 276
 277         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 278
 279         return recv_ctx->sds_rings == NULL;
 280 }
 281
 282 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 283 {
 284         if (recv_ctx->sds_rings != NULL)
 285                 kfree(recv_ctx->sds_rings);
 286
 287         recv_ctx->sds_rings = NULL;
 288 }
 289
 290 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 291 {
 292         u8 mac_addr[ETH_ALEN];
 293         struct net_device *netdev = adapter->netdev;
 294         struct pci_dev *pdev = adapter->pdev;
 295
 296         if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
 297                 return -EIO;
 298
 299         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 300         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 301
 302         /* set station address */
 303
 304         if (!is_valid_ether_addr(netdev->dev_addr))
 305                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 306                                         netdev->dev_addr);
 307
 308         return 0;
 309 }
 310
 311 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
 312 {
 313         struct qlcnic_mac_list_s *cur;
 314         struct list_head *head;
 315
 316         list_for_each(head, &adapter->mac_list) {
 317                 cur = list_entry(head, struct qlcnic_mac_list_s, list);
 318                 if (!memcmp(adapter->mac_addr, cur->mac_addr, ETH_ALEN)) {
 319                         qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
 320                                                   0, QLCNIC_MAC_DEL);
 321                         list_del(&cur->list);
 322                         kfree(cur);
 323                         return;
 324                 }
 325         }
 326 }
 327
 328 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 329 {
 330         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 331         struct sockaddr *addr = p;
 332
 333         if (qlcnic_sriov_vf_check(adapter))
 334                 return -EINVAL;
 335
 336         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 337                 return -EOPNOTSUPP;
 338
 339         if (!is_valid_ether_addr(addr->sa_data))
 340                 return -EINVAL;
 341
 342         if (!memcmp(adapter->mac_addr, addr->sa_data, ETH_ALEN))
 343                 return 0;
 344
 345         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 346                 netif_device_detach(netdev);
 347                 qlcnic_napi_disable(adapter);
 348         }
 349
 350         qlcnic_delete_adapter_mac(adapter);
 351         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 352         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 353         qlcnic_set_multi(adapter->netdev);
 354
 355         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 356                 netif_device_attach(netdev);
 357                 qlcnic_napi_enable(adapter);
 358         }
 359         return 0;
 360 }
 361
 362 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 363                         struct net_device *netdev, const unsigned char *addr)
 364 {
 365         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 366         int err = -EOPNOTSUPP;
 367
 368         if (!adapter->fdb_mac_learn)
 369                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
 370
 371         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 372                 if (is_unicast_ether_addr(addr))
 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         return err;
 380 }
 381
 382 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 383                         struct net_device *netdev,
 384                         const unsigned char *addr, u16 flags)
 385 {
 386         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 387         int err = 0;
 388
 389         if (!adapter->fdb_mac_learn)
 390                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
 391
 392         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 393                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 394                 return -EOPNOTSUPP;
 395         }
 396
 397         if (ether_addr_equal(addr, adapter->mac_addr))
 398                 return err;
 399
 400         if (is_unicast_ether_addr(addr))
 401                 err = qlcnic_nic_add_mac(adapter, addr, 0);
 402         else if (is_multicast_ether_addr(addr))
 403                 err = dev_mc_add_excl(netdev, addr);
 404         else
 405                 err = -EINVAL;
 406
 407         return err;
 408 }
 409
 410 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 411                         struct net_device *netdev, int idx)
 412 {
 413         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 414
 415         if (!adapter->fdb_mac_learn)
 416                 return ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 417
 418         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
 419                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 420
 421         return idx;
 422 }
 423
 424 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 425 {
 426         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 427                 usleep_range(10000, 11000);
 428
 429         cancel_delayed_work_sync(&adapter->fw_work);
 430 }
 431
 432 static const struct net_device_ops qlcnic_netdev_ops = {
 433         .ndo_open          = qlcnic_open,
 434         .ndo_stop          = qlcnic_close,
 435         .ndo_start_xmit    = qlcnic_xmit_frame,
 436         .ndo_get_stats     = qlcnic_get_stats,
 437         .ndo_validate_addr = eth_validate_addr,
 438         .ndo_set_rx_mode   = qlcnic_set_multi,
 439         .ndo_set_mac_address    = qlcnic_set_mac,
 440         .ndo_change_mtu    = qlcnic_change_mtu,
 441         .ndo_fix_features  = qlcnic_fix_features,
 442         .ndo_set_features  = qlcnic_set_features,
 443         .ndo_tx_timeout    = qlcnic_tx_timeout,
 444         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 445         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 446         .ndo_fdb_add            = qlcnic_fdb_add,
 447         .ndo_fdb_del            = qlcnic_fdb_del,
 448         .ndo_fdb_dump           = qlcnic_fdb_dump,
 449 #ifdef CONFIG_NET_POLL_CONTROLLER
 450         .ndo_poll_controller = qlcnic_poll_controller,
 451 #endif
 452 #ifdef CONFIG_QLCNIC_SRIOV
 453         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 454         .ndo_set_vf_tx_rate     = qlcnic_sriov_set_vf_tx_rate,
 455         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 456         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 457 #endif
 458 };
 459
 460 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 461         .ndo_open          = qlcnic_open,
 462 };
 463
 464 static struct qlcnic_nic_template qlcnic_ops = {
 465         .config_bridged_mode    = qlcnic_config_bridged_mode,
 466         .config_led             = qlcnic_82xx_config_led,
 467         .start_firmware         = qlcnic_82xx_start_firmware,
 468         .request_reset          = qlcnic_82xx_dev_request_reset,
 469         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 470         .napi_add               = qlcnic_82xx_napi_add,
 471         .napi_del               = qlcnic_82xx_napi_del,
 472         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 473         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 474 };
 475
 476 struct qlcnic_nic_template qlcnic_vf_ops = {
 477         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 478         .config_led             = qlcnicvf_config_led,
 479         .start_firmware         = qlcnicvf_start_firmware
 480 };
 481
 482 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 483         .read_crb                       = qlcnic_82xx_read_crb,
 484         .write_crb                      = qlcnic_82xx_write_crb,
 485         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 486         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 487         .get_mac_address                = qlcnic_82xx_get_mac_address,
 488         .setup_intr                     = qlcnic_82xx_setup_intr,
 489         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 490         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 491         .get_func_no                    = qlcnic_82xx_get_func_no,
 492         .api_lock                       = qlcnic_82xx_api_lock,
 493         .api_unlock                     = qlcnic_82xx_api_unlock,
 494         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 495         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 496         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 497         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 498         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 499         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 500         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 501         .setup_link_event               = qlcnic_82xx_linkevent_request,
 502         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 503         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 504         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 505         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 506         .napi_enable                    = qlcnic_82xx_napi_enable,
 507         .napi_disable                   = qlcnic_82xx_napi_disable,
 508         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 509         .config_rss                     = qlcnic_82xx_config_rss,
 510         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 511         .config_loopback                = qlcnic_82xx_set_lb_mode,
 512         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 513         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 514         .change_l2_filter               = qlcnic_82xx_change_filter,
 515         .get_board_info                 = qlcnic_82xx_get_board_info,
 516         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 517 };
 518
 519 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 520 {
 521         struct pci_dev *pdev = adapter->pdev;
 522         int err = -1, i;
 523         int max_tx_rings, tx_vector;
 524
 525         if (adapter->flags & QLCNIC_TX_INTR_SHARED) {
 526                 max_tx_rings = 0;
 527                 tx_vector = 0;
 528         } else {
 529                 max_tx_rings = adapter->max_drv_tx_rings;
 530                 tx_vector = 1;
 531         }
 532
 533         if (!adapter->msix_entries) {
 534                 adapter->msix_entries = kcalloc(num_msix,
 535                                                 sizeof(struct msix_entry),
 536                                                 GFP_KERNEL);
 537                 if (!adapter->msix_entries)
 538                         return -ENOMEM;
 539         }
 540
 541         adapter->max_sds_rings = 1;
 542         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 543
 544         if (adapter->ahw->msix_supported) {
 545  enable_msix:
 546                 for (i = 0; i < num_msix; i++)
 547                         adapter->msix_entries[i].entry = i;
 548                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 549                 if (err == 0) {
 550                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 551                         if (qlcnic_83xx_check(adapter)) {
 552                                 adapter->ahw->num_msix = num_msix;
 553                                 /* subtract mail box and tx ring vectors */
 554                                 adapter->max_sds_rings = num_msix -
 555                                                          max_tx_rings - 1;
 556                         } else {
 557                                 adapter->max_sds_rings = num_msix;
 558                         }
 559                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 560                         return err;
 561                 } else if (err > 0) {
 562                         dev_info(&pdev->dev,
 563                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 564                                  num_msix);
 565                         if (qlcnic_83xx_check(adapter)) {
 566                                 if (err < (QLC_83XX_MINIMUM_VECTOR - tx_vector))
 567                                         return err;
 568                                 err -= (max_tx_rings + 1);
 569                                 num_msix = rounddown_pow_of_two(err);
 570                                 num_msix += (max_tx_rings + 1);
 571                         } else {
 572                                 num_msix = rounddown_pow_of_two(err);
 573                         }
 574
 575                         if (num_msix) {
 576                                 dev_info(&pdev->dev,
 577                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 578                                          num_msix);
 579                                 goto enable_msix;
 580                         }
 581                 } else {
 582                         dev_info(&pdev->dev,
 583                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 584                                  num_msix);
 585                 }
 586         }
 587
 588         return err;
 589 }
 590
 591 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 592 {
 593         int err = 0;
 594         u32 offset, mask_reg;
 595         const struct qlcnic_legacy_intr_set *legacy_intrp;
 596         struct qlcnic_hardware_context *ahw = adapter->ahw;
 597         struct pci_dev *pdev = adapter->pdev;
 598
 599         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 600                 adapter->flags |= QLCNIC_MSI_ENABLED;
 601                 offset = msi_tgt_status[adapter->ahw->pci_func];
 602                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 603                                                             offset);
 604                 dev_info(&pdev->dev, "using msi interrupts\n");
 605                 adapter->msix_entries[0].vector = pdev->irq;
 606                 return err;
 607         }
 608         if (qlcnic_use_msi || qlcnic_use_msi_x)
 609                 return -EOPNOTSUPP;
 610
 611         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 612         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 613         offset = legacy_intrp->tgt_status_reg;
 614         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 615         mask_reg = legacy_intrp->tgt_mask_reg;
 616         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 617         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 618         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 619         dev_info(&pdev->dev, "using legacy interrupts\n");
 620         adapter->msix_entries[0].vector = pdev->irq;
 621         return err;
 622 }
 623
 624 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr)
 625 {
 626         int num_msix, err = 0;
 627
 628         if (!num_intr)
 629                 num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
 630
 631         if (adapter->ahw->msix_supported)
 632                 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 633                                                 num_intr));
 634         else
 635                 num_msix = 1;
 636
 637         err = qlcnic_enable_msix(adapter, num_msix);
 638         if (err == -ENOMEM || !err)
 639                 return err;
 640
 641         err = qlcnic_enable_msi_legacy(adapter);
 642         if (!err)
 643                 return err;
 644
 645         return -EIO;
 646 }
 647
 648 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 649 {
 650         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 651                 pci_disable_msix(adapter->pdev);
 652         if (adapter->flags & QLCNIC_MSI_ENABLED)
 653                 pci_disable_msi(adapter->pdev);
 654
 655         kfree(adapter->msix_entries);
 656         adapter->msix_entries = NULL;
 657
 658         if (adapter->ahw->intr_tbl) {
 659                 vfree(adapter->ahw->intr_tbl);
 660                 adapter->ahw->intr_tbl = NULL;
 661         }
 662 }
 663
 664 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 665 {
 666         if (ahw->pci_base0 != NULL)
 667                 iounmap(ahw->pci_base0);
 668 }
 669
 670 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 671 {
 672         struct qlcnic_pci_info *pci_info;
 673         int ret;
 674
 675         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 676                 switch (adapter->ahw->port_type) {
 677                 case QLCNIC_GBE:
 678                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
 679                         break;
 680                 case QLCNIC_XGBE:
 681                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
 682                         break;
 683                 }
 684                 return 0;
 685         }
 686
 687         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
 688                 return 0;
 689
 690         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 691         if (!pci_info)
 692                 return -ENOMEM;
 693
 694         ret = qlcnic_get_pci_info(adapter, pci_info);
 695         kfree(pci_info);
 696         return ret;
 697 }
 698
 699 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 700 {
 701         struct qlcnic_pci_info *pci_info;
 702         int i, ret = 0, j = 0;
 703         u16 act_pci_func;
 704         u8 pfn;
 705
 706         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 707         if (!pci_info)
 708                 return -ENOMEM;
 709
 710         ret = qlcnic_get_pci_info(adapter, pci_info);
 711         if (ret)
 712                 goto err_pci_info;
 713
 714         act_pci_func = adapter->ahw->act_pci_func;
 715
 716         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 717                                  act_pci_func, GFP_KERNEL);
 718         if (!adapter->npars) {
 719                 ret = -ENOMEM;
 720                 goto err_pci_info;
 721         }
 722
 723         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 724                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 725         if (!adapter->eswitch) {
 726                 ret = -ENOMEM;
 727                 goto err_npars;
 728         }
 729
 730         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 731                 pfn = pci_info[i].id;
 732
 733                 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
 734                         ret = QL_STATUS_INVALID_PARAM;
 735                         goto err_eswitch;
 736                 }
 737
 738                 if (!pci_info[i].active ||
 739                     (pci_info[i].type != QLCNIC_TYPE_NIC))
 740                         continue;
 741
 742                 adapter->npars[j].pci_func = pfn;
 743                 adapter->npars[j].active = (u8)pci_info[i].active;
 744                 adapter->npars[j].type = (u8)pci_info[i].type;
 745                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
 746                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
 747                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
 748                 j++;
 749         }
 750
 751         for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++) {
 752                 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 753                 if (qlcnic_83xx_check(adapter))
 754                         qlcnic_enable_eswitch(adapter, i, 1);
 755         }
 756
 757         kfree(pci_info);
 758         return 0;
 759
 760 err_eswitch:
 761         kfree(adapter->eswitch);
 762         adapter->eswitch = NULL;
 763 err_npars:
 764         kfree(adapter->npars);
 765         adapter->npars = NULL;
 766 err_pci_info:
 767         kfree(pci_info);
 768
 769         return ret;
 770 }
 771
 772 static int
 773 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 774 {
 775         u8 id;
 776         int i, ret = 1;
 777         u32 data = QLCNIC_MGMT_FUNC;
 778         struct qlcnic_hardware_context *ahw = adapter->ahw;
 779
 780         ret = qlcnic_api_lock(adapter);
 781         if (ret)
 782                 goto err_lock;
 783
 784         if (qlcnic_config_npars) {
 785                 for (i = 0; i < ahw->act_pci_func; i++) {
 786                         id = adapter->npars[i].pci_func;
 787                         if (id == ahw->pci_func)
 788                                 continue;
 789                         data |= (qlcnic_config_npars &
 790                                         QLC_DEV_SET_DRV(0xf, id));
 791                 }
 792         } else {
 793                 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 794                 data = (data & ~QLC_DEV_SET_DRV(0xf, ahw->pci_func)) |
 795                         (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
 796                                          ahw->pci_func));
 797         }
 798         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
 799         qlcnic_api_unlock(adapter);
 800 err_lock:
 801         return ret;
 802 }
 803
 804 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
 805                             const struct pci_device_id *ent)
 806 {
 807         u32 op_mode, priv_level;
 808
 809         /* Determine FW API version */
 810         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
 811                                                            QLCNIC_FW_API);
 812
 813         /* Find PCI function number */
 814         qlcnic_get_func_no(adapter);
 815
 816         /* Determine function privilege level */
 817         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 818         if (op_mode == QLC_DEV_DRV_DEFAULT)
 819                 priv_level = QLCNIC_MGMT_FUNC;
 820         else
 821                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 822
 823         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 824                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 825                 dev_info(&adapter->pdev->dev,
 826                         "HAL Version: %d Non Privileged function\n",
 827                          adapter->ahw->fw_hal_version);
 828                 adapter->nic_ops = &qlcnic_vf_ops;
 829         } else
 830                 adapter->nic_ops = &qlcnic_ops;
 831 }
 832
 833 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
 834 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
 835 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
 836 {
 837         switch (dev_id) {
 838         case PCI_DEVICE_ID_QLOGIC_QLE824X:
 839                 *bar = QLCNIC_82XX_BAR0_LENGTH;
 840                 break;
 841         case PCI_DEVICE_ID_QLOGIC_QLE834X:
 842         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
 843                 *bar = QLCNIC_83XX_BAR0_LENGTH;
 844                 break;
 845         default:
 846                 *bar = 0;
 847         }
 848 }
 849
 850 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
 851                                 struct qlcnic_hardware_context *ahw)
 852 {
 853         u32 offset;
 854         void __iomem *mem_ptr0 = NULL;
 855         unsigned long mem_len, pci_len0 = 0, bar0_len;
 856
 857         /* remap phys address */
 858         mem_len = pci_resource_len(pdev, 0);
 859
 860         qlcnic_get_bar_length(pdev->device, &bar0_len);
 861         if (mem_len >= bar0_len) {
 862
 863                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 864                 if (mem_ptr0 == NULL) {
 865                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 866                         return -EIO;
 867                 }
 868                 pci_len0 = mem_len;
 869         } else {
 870                 return -EIO;
 871         }
 872
 873         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
 874
 875         ahw->pci_base0 = mem_ptr0;
 876         ahw->pci_len0 = pci_len0;
 877         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
 878         qlcnic_get_ioaddr(ahw, offset);
 879
 880         return 0;
 881 }
 882
 883 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
 884 {
 885         struct pci_dev *pdev = adapter->pdev;
 886         int i, found = 0;
 887
 888         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 889                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 890                         qlcnic_boards[i].device == pdev->device &&
 891                         qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
 892                         qlcnic_boards[i].sub_device == pdev->subsystem_device) {
 893                                 sprintf(name, "%pM: %s" ,
 894                                         adapter->mac_addr,
 895                                         qlcnic_boards[i].short_name);
 896                                 found = 1;
 897                                 break;
 898                 }
 899
 900         }
 901
 902         if (!found)
 903                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 904 }
 905
 906 static void
 907 qlcnic_check_options(struct qlcnic_adapter *adapter)
 908 {
 909         int err;
 910         u32 fw_major, fw_minor, fw_build, prev_fw_version;
 911         struct pci_dev *pdev = adapter->pdev;
 912         struct qlcnic_hardware_context *ahw = adapter->ahw;
 913         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
 914
 915         prev_fw_version = adapter->fw_version;
 916
 917         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 918         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
 919         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
 920
 921         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 922
 923         err = qlcnic_get_board_info(adapter);
 924         if (err) {
 925                 dev_err(&pdev->dev, "Error getting board config info.\n");
 926                 return;
 927         }
 928         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
 929                 if (fw_dump->tmpl_hdr == NULL ||
 930                                 adapter->fw_version > prev_fw_version) {
 931                         if (fw_dump->tmpl_hdr)
 932                                 vfree(fw_dump->tmpl_hdr);
 933                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
 934                                 dev_info(&pdev->dev,
 935                                         "Supports FW dump capability\n");
 936                 }
 937         }
 938
 939         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
 940                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
 941
 942         if (adapter->ahw->port_type == QLCNIC_XGBE) {
 943                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 944                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
 945                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
 946                 } else {
 947                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 948                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
 949                 }
 950
 951                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 952                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 953
 954         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
 955                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 956                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 957                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 958                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
 959         }
 960
 961         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
 962
 963         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 964
 965         adapter->max_rds_rings = MAX_RDS_RINGS;
 966 }
 967
 968 static int
 969 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 970 {
 971         int err;
 972         struct qlcnic_info nic_info;
 973
 974         memset(&nic_info, 0, sizeof(struct qlcnic_info));
 975         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
 976         if (err)
 977                 return err;
 978
 979         adapter->ahw->physical_port = (u8)nic_info.phys_port;
 980         adapter->ahw->switch_mode = nic_info.switch_mode;
 981         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
 982         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
 983         adapter->ahw->capabilities = nic_info.capabilities;
 984
 985         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
 986                 u32 temp;
 987                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
 988                 adapter->ahw->capabilities2 = temp;
 989         }
 990         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
 991         adapter->ahw->max_mtu = nic_info.max_mtu;
 992
 993         /* Disable NPAR for 83XX */
 994         if (qlcnic_83xx_check(adapter))
 995                 return err;
 996
 997         if (adapter->ahw->capabilities & BIT_6)
 998                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
 999         else
1000                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1001
1002         return err;
1003 }
1004
1005 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1006                             struct qlcnic_esw_func_cfg *esw_cfg)
1007 {
1008         if (esw_cfg->discard_tagged)
1009                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1010         else
1011                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1012
1013         if (esw_cfg->vlan_id) {
1014                 adapter->rx_pvid = esw_cfg->vlan_id;
1015                 adapter->tx_pvid = esw_cfg->vlan_id;
1016         } else {
1017                 adapter->rx_pvid = 0;
1018                 adapter->tx_pvid = 0;
1019         }
1020 }
1021
1022 static int
1023 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1024 {
1025         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1026         int err;
1027
1028         if (qlcnic_sriov_vf_check(adapter)) {
1029                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1030                 if (err) {
1031                         netdev_err(netdev,
1032                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1033                                    vid, err);
1034                         return err;
1035                 }
1036         }
1037
1038         set_bit(vid, adapter->vlans);
1039         return 0;
1040 }
1041
1042 static int
1043 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1044 {
1045         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1046         int err;
1047
1048         if (qlcnic_sriov_vf_check(adapter)) {
1049                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1050                 if (err) {
1051                         netdev_err(netdev,
1052                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1053                                    vid, err);
1054                         return err;
1055                 }
1056         }
1057
1058         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1059         clear_bit(vid, adapter->vlans);
1060         return 0;
1061 }
1062
1063 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1064                                       struct qlcnic_esw_func_cfg *esw_cfg)
1065 {
1066         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1067                                 QLCNIC_PROMISC_DISABLED);
1068
1069         if (esw_cfg->mac_anti_spoof)
1070                 adapter->flags |= QLCNIC_MACSPOOF;
1071
1072         if (!esw_cfg->mac_override)
1073                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1074
1075         if (!esw_cfg->promisc_mode)
1076                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1077
1078         qlcnic_set_netdev_features(adapter, esw_cfg);
1079 }
1080
1081 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1082 {
1083         struct qlcnic_esw_func_cfg esw_cfg;
1084
1085         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1086                 return 0;
1087
1088         esw_cfg.pci_func = adapter->ahw->pci_func;
1089         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1090                         return -EIO;
1091         qlcnic_set_vlan_config(adapter, &esw_cfg);
1092         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1093
1094         return 0;
1095 }
1096
1097 static void
1098 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1099                 struct qlcnic_esw_func_cfg *esw_cfg)
1100 {
1101         struct net_device *netdev = adapter->netdev;
1102         unsigned long features, vlan_features;
1103
1104         if (qlcnic_83xx_check(adapter))
1105                 return;
1106
1107         features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1108                     NETIF_F_IPV6_CSUM | NETIF_F_GRO);
1109         vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
1110                         NETIF_F_IPV6_CSUM);
1111
1112         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1113                 features |= (NETIF_F_TSO | NETIF_F_TSO6);
1114                 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1115         }
1116
1117         if (netdev->features & NETIF_F_LRO)
1118                 features |= NETIF_F_LRO;
1119
1120         if (esw_cfg->offload_flags & BIT_0) {
1121                 netdev->features |= features;
1122                 adapter->rx_csum = 1;
1123                 if (!(esw_cfg->offload_flags & BIT_1)) {
1124                         netdev->features &= ~NETIF_F_TSO;
1125                         features &= ~NETIF_F_TSO;
1126                 }
1127                 if (!(esw_cfg->offload_flags & BIT_2)) {
1128                         netdev->features &= ~NETIF_F_TSO6;
1129                         features &= ~NETIF_F_TSO6;
1130                 }
1131         } else {
1132                 netdev->features &= ~features;
1133                 features &= ~features;
1134                 adapter->rx_csum = 0;
1135         }
1136
1137         netdev->vlan_features = (features & vlan_features);
1138 }
1139
1140 static int
1141 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1142 {
1143         u32 op_mode, priv_level;
1144         int err = 0;
1145
1146         err = qlcnic_initialize_nic(adapter);
1147         if (err)
1148                 return err;
1149
1150         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1151                 return 0;
1152
1153         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1154         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1155
1156         if (op_mode == QLC_DEV_DRV_DEFAULT)
1157                 priv_level = QLCNIC_MGMT_FUNC;
1158         else
1159                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1160
1161         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1162                 if (priv_level == QLCNIC_MGMT_FUNC) {
1163                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1164                         err = qlcnic_init_pci_info(adapter);
1165                         if (err)
1166                                 return err;
1167                         /* Set privilege level for other functions */
1168                         qlcnic_set_function_modes(adapter);
1169                         dev_info(&adapter->pdev->dev,
1170                                 "HAL Version: %d, Management function\n",
1171                                  adapter->ahw->fw_hal_version);
1172                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1173                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1174                         dev_info(&adapter->pdev->dev,
1175                                 "HAL Version: %d, Privileged function\n",
1176                                  adapter->ahw->fw_hal_version);
1177                 }
1178         }
1179
1180         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1181
1182         return err;
1183 }
1184
1185 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1186 {
1187         struct qlcnic_esw_func_cfg esw_cfg;
1188         struct qlcnic_npar_info *npar;
1189         u8 i;
1190
1191         if (adapter->need_fw_reset)
1192                 return 0;
1193
1194         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1195                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1196                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1197                 esw_cfg.mac_override = BIT_0;
1198                 esw_cfg.promisc_mode = BIT_0;
1199                 if (qlcnic_82xx_check(adapter)) {
1200                         esw_cfg.offload_flags = BIT_0;
1201                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1202                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1203                 }
1204                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1205                         return -EIO;
1206                 npar = &adapter->npars[i];
1207                 npar->pvid = esw_cfg.vlan_id;
1208                 npar->mac_override = esw_cfg.mac_override;
1209                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1210                 npar->discard_tagged = esw_cfg.discard_tagged;
1211                 npar->promisc_mode = esw_cfg.promisc_mode;
1212                 npar->offload_flags = esw_cfg.offload_flags;
1213         }
1214
1215         return 0;
1216 }
1217
1218
1219 static int
1220 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1221                         struct qlcnic_npar_info *npar, int pci_func)
1222 {
1223         struct qlcnic_esw_func_cfg esw_cfg;
1224         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1225         esw_cfg.pci_func = pci_func;
1226         esw_cfg.vlan_id = npar->pvid;
1227         esw_cfg.mac_override = npar->mac_override;
1228         esw_cfg.discard_tagged = npar->discard_tagged;
1229         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1230         esw_cfg.offload_flags = npar->offload_flags;
1231         esw_cfg.promisc_mode = npar->promisc_mode;
1232         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1233                 return -EIO;
1234
1235         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1236         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1237                 return -EIO;
1238
1239         return 0;
1240 }
1241
1242 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1243 {
1244         int i, err;
1245         struct qlcnic_npar_info *npar;
1246         struct qlcnic_info nic_info;
1247         u8 pci_func;
1248
1249         if (qlcnic_82xx_check(adapter))
1250                 if (!adapter->need_fw_reset)
1251                         return 0;
1252
1253         /* Set the NPAR config data after FW reset */
1254         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1255                 npar = &adapter->npars[i];
1256                 pci_func = npar->pci_func;
1257                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1258                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1259                 if (err)
1260                         return err;
1261                 nic_info.min_tx_bw = npar->min_bw;
1262                 nic_info.max_tx_bw = npar->max_bw;
1263                 err = qlcnic_set_nic_info(adapter, &nic_info);
1264                 if (err)
1265                         return err;
1266
1267                 if (npar->enable_pm) {
1268                         err = qlcnic_config_port_mirroring(adapter,
1269                                                            npar->dest_npar, 1,
1270                                                            pci_func);
1271                         if (err)
1272                                 return err;
1273                 }
1274                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1275                 if (err)
1276                         return err;
1277         }
1278         return 0;
1279 }
1280
1281 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1282 {
1283         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1284         u32 npar_state;
1285
1286         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1287                 return 0;
1288
1289         npar_state = QLC_SHARED_REG_RD32(adapter,
1290                                          QLCNIC_CRB_DEV_NPAR_STATE);
1291         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1292                 msleep(1000);
1293                 npar_state = QLC_SHARED_REG_RD32(adapter,
1294                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1295         }
1296         if (!npar_opt_timeo) {
1297                 dev_err(&adapter->pdev->dev,
1298                         "Waiting for NPAR state to operational timeout\n");
1299                 return -EIO;
1300         }
1301         return 0;
1302 }
1303
1304 static int
1305 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1306 {
1307         int err;
1308
1309         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1310             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1311                 return 0;
1312
1313         err = qlcnic_set_default_offload_settings(adapter);
1314         if (err)
1315                 return err;
1316
1317         err = qlcnic_reset_npar_config(adapter);
1318         if (err)
1319                 return err;
1320
1321         qlcnic_dev_set_npar_ready(adapter);
1322
1323         return err;
1324 }
1325
1326 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1327 {
1328         int err;
1329
1330         err = qlcnic_can_start_firmware(adapter);
1331         if (err < 0)
1332                 return err;
1333         else if (!err)
1334                 goto check_fw_status;
1335
1336         if (qlcnic_load_fw_file)
1337                 qlcnic_request_firmware(adapter);
1338         else {
1339                 err = qlcnic_check_flash_fw_ver(adapter);
1340                 if (err)
1341                         goto err_out;
1342
1343                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1344         }
1345
1346         err = qlcnic_need_fw_reset(adapter);
1347         if (err == 0)
1348                 goto check_fw_status;
1349
1350         err = qlcnic_pinit_from_rom(adapter);
1351         if (err)
1352                 goto err_out;
1353
1354         err = qlcnic_load_firmware(adapter);
1355         if (err)
1356                 goto err_out;
1357
1358         qlcnic_release_firmware(adapter);
1359         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1360
1361 check_fw_status:
1362         err = qlcnic_check_fw_status(adapter);
1363         if (err)
1364                 goto err_out;
1365
1366         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1367         qlcnic_idc_debug_info(adapter, 1);
1368         err = qlcnic_check_eswitch_mode(adapter);
1369         if (err) {
1370                 dev_err(&adapter->pdev->dev,
1371                         "Memory allocation failed for eswitch\n");
1372                 goto err_out;
1373         }
1374         err = qlcnic_set_mgmt_operations(adapter);
1375         if (err)
1376                 goto err_out;
1377
1378         qlcnic_check_options(adapter);
1379         adapter->need_fw_reset = 0;
1380
1381         qlcnic_release_firmware(adapter);
1382         return 0;
1383
1384 err_out:
1385         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1386         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1387
1388         qlcnic_release_firmware(adapter);
1389         return err;
1390 }
1391
1392 static int
1393 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1394 {
1395         irq_handler_t handler;
1396         struct qlcnic_host_sds_ring *sds_ring;
1397         struct qlcnic_host_tx_ring *tx_ring;
1398         int err, ring, num_sds_rings;
1399
1400         unsigned long flags = 0;
1401         struct net_device *netdev = adapter->netdev;
1402         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1403
1404         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1405                 if (qlcnic_82xx_check(adapter))
1406                         handler = qlcnic_tmp_intr;
1407                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1408                         flags |= IRQF_SHARED;
1409
1410         } else {
1411                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1412                         handler = qlcnic_msix_intr;
1413                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1414                         handler = qlcnic_msi_intr;
1415                 else {
1416                         flags |= IRQF_SHARED;
1417                         if (qlcnic_82xx_check(adapter))
1418                                 handler = qlcnic_intr;
1419                         else
1420                                 handler = qlcnic_83xx_intr;
1421                 }
1422         }
1423         adapter->irq = netdev->irq;
1424
1425         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1426                 if (qlcnic_82xx_check(adapter) ||
1427                     (qlcnic_83xx_check(adapter) &&
1428                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1429                         num_sds_rings = adapter->max_sds_rings;
1430                         for (ring = 0; ring < num_sds_rings; ring++) {
1431                                 sds_ring = &recv_ctx->sds_rings[ring];
1432                                 if (qlcnic_82xx_check(adapter) &&
1433                                     (ring == (num_sds_rings - 1)))
1434                                         snprintf(sds_ring->name,
1435                                                  sizeof(sds_ring->name),
1436                                                  "qlcnic-%s[Tx0+Rx%d]",
1437                                                  netdev->name, ring);
1438                                 else
1439                                         snprintf(sds_ring->name,
1440                                                  sizeof(sds_ring->name),
1441                                                  "qlcnic-%s[Rx%d]",
1442                                                  netdev->name, ring);
1443                                 err = request_irq(sds_ring->irq, handler, flags,
1444                                                   sds_ring->name, sds_ring);
1445                                 if (err)
1446                                         return err;
1447                         }
1448                 }
1449                 if (qlcnic_83xx_check(adapter) &&
1450                     (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1451                     !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1452                         handler = qlcnic_msix_tx_intr;
1453                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1454                              ring++) {
1455                                 tx_ring = &adapter->tx_ring[ring];
1456                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1457                                          "qlcnic-%s[Tx%d]", netdev->name, ring);
1458                                 err = request_irq(tx_ring->irq, handler, flags,
1459                                                   tx_ring->name, tx_ring);
1460                                 if (err)
1461                                         return err;
1462                         }
1463                 }
1464         }
1465         return 0;
1466 }
1467
1468 static void
1469 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1470 {
1471         int ring;
1472         struct qlcnic_host_sds_ring *sds_ring;
1473         struct qlcnic_host_tx_ring *tx_ring;
1474
1475         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1476
1477         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1478                 if (qlcnic_82xx_check(adapter) ||
1479                     (qlcnic_83xx_check(adapter) &&
1480                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1481                         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1482                                 sds_ring = &recv_ctx->sds_rings[ring];
1483                                 free_irq(sds_ring->irq, sds_ring);
1484                         }
1485                 }
1486                 if (qlcnic_83xx_check(adapter) &&
1487                     !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1488                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1489                              ring++) {
1490                                 tx_ring = &adapter->tx_ring[ring];
1491                                 if (tx_ring->irq)
1492                                         free_irq(tx_ring->irq, tx_ring);
1493                         }
1494                 }
1495         }
1496 }
1497
1498 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1499 {
1500         u32 capab = 0;
1501
1502         if (qlcnic_82xx_check(adapter)) {
1503                 if (adapter->ahw->capabilities2 &
1504                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1505                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1506         } else {
1507                 capab = adapter->ahw->capabilities;
1508                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1509                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1510         }
1511 }
1512
1513 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1514 {
1515         int ring;
1516         struct qlcnic_host_rds_ring *rds_ring;
1517
1518         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1519                 return -EIO;
1520
1521         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1522                 return 0;
1523         if (qlcnic_set_eswitch_port_config(adapter))
1524                 return -EIO;
1525         qlcnic_get_lro_mss_capability(adapter);
1526
1527         if (qlcnic_fw_create_ctx(adapter))
1528                 return -EIO;
1529
1530         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1531                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1532                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1533         }
1534
1535         qlcnic_set_multi(netdev);
1536         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1537
1538         adapter->ahw->linkup = 0;
1539
1540         if (adapter->max_sds_rings > 1)
1541                 qlcnic_config_rss(adapter, 1);
1542
1543         qlcnic_config_intr_coalesce(adapter);
1544
1545         if (netdev->features & NETIF_F_LRO)
1546                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1547
1548         qlcnic_napi_enable(adapter);
1549
1550         qlcnic_linkevent_request(adapter, 1);
1551
1552         adapter->ahw->reset_context = 0;
1553         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1554         return 0;
1555 }
1556
1557 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1558 {
1559         int err = 0;
1560
1561         rtnl_lock();
1562         if (netif_running(netdev))
1563                 err = __qlcnic_up(adapter, netdev);
1564         rtnl_unlock();
1565
1566         return err;
1567 }
1568
1569 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1570 {
1571         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1572                 return;
1573
1574         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1575                 return;
1576
1577         if (qlcnic_sriov_vf_check(adapter))
1578                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1579         smp_mb();
1580         spin_lock(&adapter->tx_clean_lock);
1581         netif_carrier_off(netdev);
1582         adapter->ahw->linkup = 0;
1583         netif_tx_disable(netdev);
1584
1585         qlcnic_free_mac_list(adapter);
1586
1587         if (adapter->fhash.fnum)
1588                 qlcnic_delete_lb_filters(adapter);
1589
1590         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1591
1592         qlcnic_napi_disable(adapter);
1593
1594         qlcnic_fw_destroy_ctx(adapter);
1595         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1596
1597         qlcnic_reset_rx_buffers_list(adapter);
1598         qlcnic_release_tx_buffers(adapter);
1599         spin_unlock(&adapter->tx_clean_lock);
1600 }
1601
1602 /* Usage: During suspend and firmware recovery module */
1603
1604 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1605 {
1606         rtnl_lock();
1607         if (netif_running(netdev))
1608                 __qlcnic_down(adapter, netdev);
1609         rtnl_unlock();
1610
1611 }
1612
1613 int
1614 qlcnic_attach(struct qlcnic_adapter *adapter)
1615 {
1616         struct net_device *netdev = adapter->netdev;
1617         struct pci_dev *pdev = adapter->pdev;
1618         int err;
1619
1620         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1621                 return 0;
1622
1623         err = qlcnic_napi_add(adapter, netdev);
1624         if (err)
1625                 return err;
1626
1627         err = qlcnic_alloc_sw_resources(adapter);
1628         if (err) {
1629                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1630                 goto err_out_napi_del;
1631         }
1632
1633         err = qlcnic_alloc_hw_resources(adapter);
1634         if (err) {
1635                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1636                 goto err_out_free_sw;
1637         }
1638
1639         err = qlcnic_request_irq(adapter);
1640         if (err) {
1641                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1642                 goto err_out_free_hw;
1643         }
1644
1645         qlcnic_create_sysfs_entries(adapter);
1646
1647         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1648         return 0;
1649
1650 err_out_free_hw:
1651         qlcnic_free_hw_resources(adapter);
1652 err_out_free_sw:
1653         qlcnic_free_sw_resources(adapter);
1654 err_out_napi_del:
1655         qlcnic_napi_del(adapter);
1656         return err;
1657 }
1658
1659 void qlcnic_detach(struct qlcnic_adapter *adapter)
1660 {
1661         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1662                 return;
1663
1664         qlcnic_remove_sysfs_entries(adapter);
1665
1666         qlcnic_free_hw_resources(adapter);
1667         qlcnic_release_rx_buffers(adapter);
1668         qlcnic_free_irq(adapter);
1669         qlcnic_napi_del(adapter);
1670         qlcnic_free_sw_resources(adapter);
1671
1672         adapter->is_up = 0;
1673 }
1674
1675 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1676 {
1677         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1678         struct qlcnic_host_sds_ring *sds_ring;
1679         int ring;
1680
1681         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1682         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1683                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1684                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1685                         qlcnic_disable_int(sds_ring);
1686                 }
1687         }
1688
1689         qlcnic_fw_destroy_ctx(adapter);
1690
1691         qlcnic_detach(adapter);
1692
1693         adapter->ahw->diag_test = 0;
1694         adapter->max_sds_rings = max_sds_rings;
1695
1696         if (qlcnic_attach(adapter))
1697                 goto out;
1698
1699         if (netif_running(netdev))
1700                 __qlcnic_up(adapter, netdev);
1701 out:
1702         netif_device_attach(netdev);
1703 }
1704
1705 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1706 {
1707         struct qlcnic_hardware_context *ahw = adapter->ahw;
1708         int err = 0;
1709
1710         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1711                                 GFP_KERNEL);
1712         if (!adapter->recv_ctx) {
1713                 err = -ENOMEM;
1714                 goto err_out;
1715         }
1716         /* Initialize interrupt coalesce parameters */
1717         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1718         ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1719         ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1720         ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1721         if (qlcnic_83xx_check(adapter)) {
1722                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1723                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1724         }
1725         /* clear stats */
1726         memset(&adapter->stats, 0, sizeof(adapter->stats));
1727 err_out:
1728         return err;
1729 }
1730
1731 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1732 {
1733         kfree(adapter->recv_ctx);
1734         adapter->recv_ctx = NULL;
1735
1736         if (adapter->ahw->fw_dump.tmpl_hdr) {
1737                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1738                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1739         }
1740
1741         kfree(adapter->ahw->reset.buff);
1742         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1743 }
1744
1745 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1746 {
1747         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1748         struct qlcnic_host_sds_ring *sds_ring;
1749         struct qlcnic_host_rds_ring *rds_ring;
1750         int ring;
1751         int ret;
1752
1753         netif_device_detach(netdev);
1754
1755         if (netif_running(netdev))
1756                 __qlcnic_down(adapter, netdev);
1757
1758         qlcnic_detach(adapter);
1759
1760         adapter->max_sds_rings = 1;
1761         adapter->ahw->diag_test = test;
1762         adapter->ahw->linkup = 0;
1763
1764         ret = qlcnic_attach(adapter);
1765         if (ret) {
1766                 netif_device_attach(netdev);
1767                 return ret;
1768         }
1769
1770         ret = qlcnic_fw_create_ctx(adapter);
1771         if (ret) {
1772                 qlcnic_detach(adapter);
1773                 netif_device_attach(netdev);
1774                 return ret;
1775         }
1776
1777         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1778                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1779                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1780         }
1781
1782         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1783                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1784                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1785                         qlcnic_enable_int(sds_ring);
1786                 }
1787         }
1788
1789         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1790                 adapter->ahw->loopback_state = 0;
1791                 qlcnic_linkevent_request(adapter, 1);
1792         }
1793
1794         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1795
1796         return 0;
1797 }
1798
1799 /* Reset context in hardware only */
1800 static int
1801 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1802 {
1803         struct net_device *netdev = adapter->netdev;
1804
1805         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1806                 return -EBUSY;
1807
1808         netif_device_detach(netdev);
1809
1810         qlcnic_down(adapter, netdev);
1811
1812         qlcnic_up(adapter, netdev);
1813
1814         netif_device_attach(netdev);
1815
1816         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1817         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1818         return 0;
1819 }
1820
1821 int
1822 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1823 {
1824         int err = 0;
1825         struct net_device *netdev = adapter->netdev;
1826
1827         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1828                 return -EBUSY;
1829
1830         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1831
1832                 netif_device_detach(netdev);
1833
1834                 if (netif_running(netdev))
1835                         __qlcnic_down(adapter, netdev);
1836
1837                 qlcnic_detach(adapter);
1838
1839                 if (netif_running(netdev)) {
1840                         err = qlcnic_attach(adapter);
1841                         if (!err) {
1842                                 __qlcnic_up(adapter, netdev);
1843                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1844                         }
1845                 }
1846
1847                 netif_device_attach(netdev);
1848         }
1849
1850         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1851         return err;
1852 }
1853
1854 int
1855 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
1856                     int pci_using_dac)
1857 {
1858         int err;
1859         struct pci_dev *pdev = adapter->pdev;
1860
1861         adapter->rx_csum = 1;
1862         adapter->ahw->mc_enabled = 0;
1863         adapter->ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
1864
1865         netdev->netdev_ops         = &qlcnic_netdev_ops;
1866         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
1867
1868         qlcnic_change_mtu(netdev, netdev->mtu);
1869
1870         if (qlcnic_sriov_vf_check(adapter))
1871                 SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
1872         else
1873                 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1874
1875         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1876                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
1877                              NETIF_F_HW_VLAN_CTAG_RX);
1878         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1879                                   NETIF_F_IPV6_CSUM);
1880
1881         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1882                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1883                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1884         }
1885
1886         if (pci_using_dac) {
1887                 netdev->features |= NETIF_F_HIGHDMA;
1888                 netdev->vlan_features |= NETIF_F_HIGHDMA;
1889         }
1890
1891         if (qlcnic_vlan_tx_check(adapter))
1892                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
1893
1894         if (qlcnic_sriov_vf_check(adapter))
1895                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
1896
1897         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1898                 netdev->features |= NETIF_F_LRO;
1899
1900         netdev->hw_features = netdev->features;
1901         netdev->irq = adapter->msix_entries[0].vector;
1902
1903         err = register_netdev(netdev);
1904         if (err) {
1905                 dev_err(&pdev->dev, "failed to register net device\n");
1906                 return err;
1907         }
1908
1909         return 0;
1910 }
1911
1912 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
1913 {
1914         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1915                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1916                 *pci_using_dac = 1;
1917         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1918                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1919                 *pci_using_dac = 0;
1920         else {
1921                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1922                 return -EIO;
1923         }
1924
1925         return 0;
1926 }
1927
1928 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
1929 {
1930         int ring;
1931         struct qlcnic_host_tx_ring *tx_ring;
1932
1933         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1934                 tx_ring = &adapter->tx_ring[ring];
1935                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
1936                         vfree(tx_ring->cmd_buf_arr);
1937                         tx_ring->cmd_buf_arr = NULL;
1938                 }
1939         }
1940         if (adapter->tx_ring != NULL)
1941                 kfree(adapter->tx_ring);
1942 }
1943
1944 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
1945                           struct net_device *netdev)
1946 {
1947         int ring, vector, index;
1948         struct qlcnic_host_tx_ring *tx_ring;
1949         struct qlcnic_cmd_buffer *cmd_buf_arr;
1950
1951         tx_ring = kcalloc(adapter->max_drv_tx_rings,
1952                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
1953         if (tx_ring == NULL)
1954                 return -ENOMEM;
1955
1956         adapter->tx_ring = tx_ring;
1957
1958         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1959                 tx_ring = &adapter->tx_ring[ring];
1960                 tx_ring->num_desc = adapter->num_txd;
1961                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
1962                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
1963                 if (cmd_buf_arr == NULL) {
1964                         qlcnic_free_tx_rings(adapter);
1965                         return -ENOMEM;
1966                 }
1967                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
1968                 tx_ring->cmd_buf_arr = cmd_buf_arr;
1969         }
1970
1971         if (qlcnic_83xx_check(adapter)) {
1972                 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1973                         tx_ring = &adapter->tx_ring[ring];
1974                         tx_ring->adapter = adapter;
1975                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1976                                 index = adapter->max_sds_rings + ring;
1977                                 vector = adapter->msix_entries[index].vector;
1978                                 tx_ring->irq = vector;
1979                         }
1980                 }
1981         }
1982         return 0;
1983 }
1984
1985 static int
1986 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1987 {
1988         struct net_device *netdev = NULL;
1989         struct qlcnic_adapter *adapter = NULL;
1990         struct qlcnic_hardware_context *ahw;
1991         int err, pci_using_dac = -1;
1992         u32 capab2;
1993         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
1994
1995         if (pdev->is_virtfn)
1996                 return -ENODEV;
1997
1998         err = pci_enable_device(pdev);
1999         if (err)
2000                 return err;
2001
2002         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2003                 err = -ENODEV;
2004                 goto err_out_disable_pdev;
2005         }
2006
2007         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2008         if (err)
2009                 goto err_out_disable_pdev;
2010
2011         err = pci_request_regions(pdev, qlcnic_driver_name);
2012         if (err)
2013                 goto err_out_disable_pdev;
2014
2015         pci_set_master(pdev);
2016         pci_enable_pcie_error_reporting(pdev);
2017
2018         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2019         if (!ahw) {
2020                 err = -ENOMEM;
2021                 goto err_out_free_res;
2022         }
2023
2024         switch (ent->device) {
2025         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2026                 ahw->hw_ops = &qlcnic_hw_ops;
2027                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2028                 break;
2029         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2030                 qlcnic_83xx_register_map(ahw);
2031                 break;
2032         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2033                 qlcnic_sriov_vf_register_map(ahw);
2034                 break;
2035         default:
2036                 goto err_out_free_hw_res;
2037         }
2038
2039         err = qlcnic_setup_pci_map(pdev, ahw);
2040         if (err)
2041                 goto err_out_free_hw_res;
2042
2043         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
2044         if (!netdev) {
2045                 err = -ENOMEM;
2046                 goto err_out_iounmap;
2047         }
2048
2049         SET_NETDEV_DEV(netdev, &pdev->dev);
2050
2051         adapter = netdev_priv(netdev);
2052         adapter->netdev  = netdev;
2053         adapter->pdev    = pdev;
2054         adapter->ahw = ahw;
2055
2056         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2057         if (adapter->qlcnic_wq == NULL) {
2058                 err = -ENOMEM;
2059                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2060                 goto err_out_free_netdev;
2061         }
2062
2063         err = qlcnic_alloc_adapter_resources(adapter);
2064         if (err)
2065                 goto err_out_free_netdev;
2066
2067         adapter->dev_rst_time = jiffies;
2068         adapter->ahw->revision_id = pdev->revision;
2069         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2070                 adapter->fdb_mac_learn = true;
2071         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2072                 adapter->drv_mac_learn = true;
2073         adapter->max_drv_tx_rings = 1;
2074
2075         rwlock_init(&adapter->ahw->crb_lock);
2076         mutex_init(&adapter->ahw->mem_lock);
2077
2078         spin_lock_init(&adapter->tx_clean_lock);
2079         INIT_LIST_HEAD(&adapter->mac_list);
2080
2081         if (qlcnic_82xx_check(adapter)) {
2082                 qlcnic_check_vf(adapter, ent);
2083                 adapter->portnum = adapter->ahw->pci_func;
2084                 err = qlcnic_start_firmware(adapter);
2085                 if (err) {
2086                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
2087                         goto err_out_free_hw;
2088                 }
2089
2090                 err = qlcnic_setup_idc_param(adapter);
2091                 if (err)
2092                         goto err_out_free_hw;
2093
2094                 adapter->flags |= QLCNIC_NEED_FLR;
2095         } else if (qlcnic_83xx_check(adapter)) {
2096                 qlcnic_83xx_check_vf(adapter, ent);
2097                 adapter->portnum = adapter->ahw->pci_func;
2098                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2099                 if (err) {
2100                         dev_err(&pdev->dev, "%s: failed\n", __func__);
2101                         goto err_out_free_hw;
2102                 }
2103                 if (qlcnic_sriov_vf_check(adapter))
2104                         return 0;
2105         } else {
2106                 dev_err(&pdev->dev,
2107                         "%s: failed. Please Reboot\n", __func__);
2108                 goto err_out_free_hw;
2109         }
2110
2111         if (qlcnic_read_mac_addr(adapter))
2112                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2113
2114         if (adapter->portnum == 0) {
2115                 qlcnic_get_board_name(adapter, board_name);
2116
2117                 pr_info("%s: %s Board Chip rev 0x%x\n",
2118                         module_name(THIS_MODULE),
2119                         board_name, adapter->ahw->revision_id);
2120         }
2121
2122         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2123             !!qlcnic_use_msi)
2124                 dev_warn(&pdev->dev,
2125                          "83xx adapter do not support MSI interrupts\n");
2126
2127         err = qlcnic_setup_intr(adapter, 0);
2128         if (err) {
2129                 dev_err(&pdev->dev, "Failed to setup interrupt\n");
2130                 goto err_out_disable_msi;
2131         }
2132
2133         if (qlcnic_83xx_check(adapter)) {
2134                 err = qlcnic_83xx_setup_mbx_intr(adapter);
2135                 if (err)
2136                         goto err_out_disable_msi;
2137         }
2138
2139         err = qlcnic_get_act_pci_func(adapter);
2140         if (err)
2141                 goto err_out_disable_mbx_intr;
2142
2143         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2144         if (err)
2145                 goto err_out_disable_mbx_intr;
2146
2147         if (qlcnic_82xx_check(adapter)) {
2148                 if (ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
2149                         capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
2150                         if (capab2 & QLCNIC_FW_CAPABILITY_2_OCBB)
2151                                 qlcnic_fw_cmd_set_drv_version(adapter);
2152                 }
2153         }
2154
2155         pci_set_drvdata(pdev, adapter);
2156
2157         if (qlcnic_82xx_check(adapter))
2158                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2159                                      FW_POLL_DELAY);
2160
2161         switch (adapter->ahw->port_type) {
2162         case QLCNIC_GBE:
2163                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2164                                 adapter->netdev->name);
2165                 break;
2166         case QLCNIC_XGBE:
2167                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2168                                 adapter->netdev->name);
2169                 break;
2170         }
2171
2172         if (adapter->drv_mac_learn)
2173                 qlcnic_alloc_lb_filters_mem(adapter);
2174
2175         qlcnic_add_sysfs(adapter);
2176
2177         return 0;
2178
2179 err_out_disable_mbx_intr:
2180         if (qlcnic_83xx_check(adapter))
2181                 qlcnic_83xx_free_mbx_intr(adapter);
2182
2183 err_out_disable_msi:
2184         qlcnic_teardown_intr(adapter);
2185         qlcnic_cancel_idc_work(adapter);
2186         qlcnic_clr_all_drv_state(adapter, 0);
2187
2188 err_out_free_hw:
2189         qlcnic_free_adapter_resources(adapter);
2190
2191 err_out_free_netdev:
2192         free_netdev(netdev);
2193
2194 err_out_iounmap:
2195         qlcnic_cleanup_pci_map(ahw);
2196
2197 err_out_free_hw_res:
2198         kfree(ahw);
2199
2200 err_out_free_res:
2201         pci_release_regions(pdev);
2202
2203 err_out_disable_pdev:
2204         pci_set_drvdata(pdev, NULL);
2205         pci_disable_device(pdev);
2206         return err;
2207 }
2208
2209 static void qlcnic_remove(struct pci_dev *pdev)
2210 {
2211         struct qlcnic_adapter *adapter;
2212         struct net_device *netdev;
2213         struct qlcnic_hardware_context *ahw;
2214
2215         adapter = pci_get_drvdata(pdev);
2216         if (adapter == NULL)
2217                 return;
2218
2219         netdev = adapter->netdev;
2220         qlcnic_sriov_pf_disable(adapter);
2221
2222         qlcnic_cancel_idc_work(adapter);
2223         ahw = adapter->ahw;
2224
2225         unregister_netdev(netdev);
2226         qlcnic_sriov_cleanup(adapter);
2227
2228         if (qlcnic_83xx_check(adapter)) {
2229                 qlcnic_83xx_free_mbx_intr(adapter);
2230                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2231                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2232         }
2233
2234         qlcnic_detach(adapter);
2235
2236         if (adapter->npars != NULL)
2237                 kfree(adapter->npars);
2238         if (adapter->eswitch != NULL)
2239                 kfree(adapter->eswitch);
2240
2241         if (qlcnic_82xx_check(adapter))
2242                 qlcnic_clr_all_drv_state(adapter, 0);
2243
2244         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2245
2246         qlcnic_free_lb_filters_mem(adapter);
2247
2248         qlcnic_teardown_intr(adapter);
2249
2250         qlcnic_remove_sysfs(adapter);
2251
2252         qlcnic_cleanup_pci_map(adapter->ahw);
2253
2254         qlcnic_release_firmware(adapter);
2255
2256         pci_disable_pcie_error_reporting(pdev);
2257         pci_release_regions(pdev);
2258         pci_disable_device(pdev);
2259         pci_set_drvdata(pdev, NULL);
2260
2261         if (adapter->qlcnic_wq) {
2262                 destroy_workqueue(adapter->qlcnic_wq);
2263                 adapter->qlcnic_wq = NULL;
2264         }
2265         qlcnic_free_adapter_resources(adapter);
2266         kfree(ahw);
2267         free_netdev(netdev);
2268 }
2269 static int __qlcnic_shutdown(struct pci_dev *pdev)
2270 {
2271         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2272         struct net_device *netdev = adapter->netdev;
2273         int retval;
2274
2275         netif_device_detach(netdev);
2276
2277         qlcnic_cancel_idc_work(adapter);
2278
2279         if (netif_running(netdev))
2280                 qlcnic_down(adapter, netdev);
2281
2282         qlcnic_sriov_cleanup(adapter);
2283         if (qlcnic_82xx_check(adapter))
2284                 qlcnic_clr_all_drv_state(adapter, 0);
2285
2286         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2287
2288         retval = pci_save_state(pdev);
2289         if (retval)
2290                 return retval;
2291         if (qlcnic_82xx_check(adapter)) {
2292                 if (qlcnic_wol_supported(adapter)) {
2293                         pci_enable_wake(pdev, PCI_D3cold, 1);
2294                         pci_enable_wake(pdev, PCI_D3hot, 1);
2295                 }
2296         }
2297
2298         return 0;
2299 }
2300
2301 static void qlcnic_shutdown(struct pci_dev *pdev)
2302 {
2303         if (__qlcnic_shutdown(pdev))
2304                 return;
2305
2306         pci_disable_device(pdev);
2307 }
2308
2309 #ifdef CONFIG_PM
2310 static int
2311 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2312 {
2313         int retval;
2314
2315         retval = __qlcnic_shutdown(pdev);
2316         if (retval)
2317                 return retval;
2318
2319         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2320         return 0;
2321 }
2322
2323 static int
2324 qlcnic_resume(struct pci_dev *pdev)
2325 {
2326         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2327         struct net_device *netdev = adapter->netdev;
2328         int err;
2329
2330         err = pci_enable_device(pdev);
2331         if (err)
2332                 return err;
2333
2334         pci_set_power_state(pdev, PCI_D0);
2335         pci_set_master(pdev);
2336         pci_restore_state(pdev);
2337
2338         err = qlcnic_start_firmware(adapter);
2339         if (err) {
2340                 dev_err(&pdev->dev, "failed to start firmware\n");
2341                 return err;
2342         }
2343
2344         if (netif_running(netdev)) {
2345                 err = qlcnic_up(adapter, netdev);
2346                 if (err)
2347                         goto done;
2348
2349                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2350         }
2351 done:
2352         netif_device_attach(netdev);
2353         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2354         return 0;
2355 }
2356 #endif
2357
2358 static int qlcnic_open(struct net_device *netdev)
2359 {
2360         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2361         int err;
2362
2363         netif_carrier_off(netdev);
2364
2365         err = qlcnic_attach(adapter);
2366         if (err)
2367                 return err;
2368
2369         err = __qlcnic_up(adapter, netdev);
2370         if (err)
2371                 goto err_out;
2372
2373         netif_start_queue(netdev);
2374
2375         return 0;
2376
2377 err_out:
2378         qlcnic_detach(adapter);
2379         return err;
2380 }
2381
2382 /*
2383  * qlcnic_close - Disables a network interface entry point
2384  */
2385 static int qlcnic_close(struct net_device *netdev)
2386 {
2387         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2388
2389         __qlcnic_down(adapter, netdev);
2390
2391         return 0;
2392 }
2393
2394 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2395 {
2396         void *head;
2397         int i;
2398         struct net_device *netdev = adapter->netdev;
2399         u32 filter_size = 0;
2400         u16 act_pci_func = 0;
2401
2402         if (adapter->fhash.fmax && adapter->fhash.fhead)
2403                 return;
2404
2405         act_pci_func = adapter->ahw->act_pci_func;
2406         spin_lock_init(&adapter->mac_learn_lock);
2407         spin_lock_init(&adapter->rx_mac_learn_lock);
2408
2409         if (qlcnic_82xx_check(adapter)) {
2410                 filter_size = QLCNIC_LB_MAX_FILTERS;
2411                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2412         } else {
2413                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2414                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2415         }
2416
2417         head = kcalloc(adapter->fhash.fbucket_size,
2418                        sizeof(struct hlist_head), GFP_ATOMIC);
2419
2420         if (!head)
2421                 return;
2422
2423         adapter->fhash.fmax = (filter_size / act_pci_func);
2424         adapter->fhash.fhead = head;
2425
2426         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2427                     act_pci_func, adapter->fhash.fmax);
2428
2429         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2430                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2431
2432         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2433
2434         head = kcalloc(adapter->rx_fhash.fbucket_size,
2435                        sizeof(struct hlist_head), GFP_ATOMIC);
2436
2437         if (!head)
2438                 return;
2439
2440         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2441         adapter->rx_fhash.fhead = head;
2442
2443         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2444                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2445 }
2446
2447 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2448 {
2449         if (adapter->fhash.fmax && adapter->fhash.fhead)
2450                 kfree(adapter->fhash.fhead);
2451
2452         adapter->fhash.fhead = NULL;
2453         adapter->fhash.fmax = 0;
2454
2455         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2456                 kfree(adapter->rx_fhash.fhead);
2457
2458         adapter->rx_fhash.fmax = 0;
2459         adapter->rx_fhash.fhead = NULL;
2460 }
2461
2462 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2463 {
2464         struct net_device *netdev = adapter->netdev;
2465         u32 temp_state, temp_val, temp = 0;
2466         int rv = 0;
2467
2468         if (qlcnic_83xx_check(adapter))
2469                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2470
2471         if (qlcnic_82xx_check(adapter))
2472                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2473
2474         temp_state = qlcnic_get_temp_state(temp);
2475         temp_val = qlcnic_get_temp_val(temp);
2476
2477         if (temp_state == QLCNIC_TEMP_PANIC) {
2478                 dev_err(&netdev->dev,
2479                        "Device temperature %d degrees C exceeds"
2480                        " maximum allowed. Hardware has been shut down.\n",
2481                        temp_val);
2482                 rv = 1;
2483         } else if (temp_state == QLCNIC_TEMP_WARN) {
2484                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2485                         dev_err(&netdev->dev,
2486                                "Device temperature %d degrees C "
2487                                "exceeds operating range."
2488                                " Immediate action needed.\n",
2489                                temp_val);
2490                 }
2491         } else {
2492                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2493                         dev_info(&netdev->dev,
2494                                "Device temperature is now %d degrees C"
2495                                " in normal range.\n", temp_val);
2496                 }
2497         }
2498         adapter->ahw->temp = temp_state;
2499         return rv;
2500 }
2501
2502 static void qlcnic_tx_timeout(struct net_device *netdev)
2503 {
2504         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2505
2506         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2507                 return;
2508
2509         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
2510                 netdev_info(netdev, "Tx timeout, reset the adapter.\n");
2511                 if (qlcnic_82xx_check(adapter))
2512                         adapter->need_fw_reset = 1;
2513                 else if (qlcnic_83xx_check(adapter))
2514                         qlcnic_83xx_idc_request_reset(adapter,
2515                                                       QLCNIC_FORCE_FW_DUMP_KEY);
2516         } else {
2517                 netdev_info(netdev, "Tx timeout, reset adapter context.\n");
2518                 adapter->ahw->reset_context = 1;
2519         }
2520 }
2521
2522 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2523 {
2524         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2525         struct net_device_stats *stats = &netdev->stats;
2526
2527         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2528         stats->tx_packets = adapter->stats.xmitfinished;
2529         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2530         stats->tx_bytes = adapter->stats.txbytes;
2531         stats->rx_dropped = adapter->stats.rxdropped;
2532         stats->tx_dropped = adapter->stats.txdropped;
2533
2534         return stats;
2535 }
2536
2537 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2538 {
2539         u32 status;
2540
2541         status = readl(adapter->isr_int_vec);
2542
2543         if (!(status & adapter->ahw->int_vec_bit))
2544                 return IRQ_NONE;
2545
2546         /* check interrupt state machine, to be sure */
2547         status = readl(adapter->crb_int_state_reg);
2548         if (!ISR_LEGACY_INT_TRIGGERED(status))
2549                 return IRQ_NONE;
2550
2551         writel(0xffffffff, adapter->tgt_status_reg);
2552         /* read twice to ensure write is flushed */
2553         readl(adapter->isr_int_vec);
2554         readl(adapter->isr_int_vec);
2555
2556         return IRQ_HANDLED;
2557 }
2558
2559 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2560 {
2561         struct qlcnic_host_sds_ring *sds_ring = data;
2562         struct qlcnic_adapter *adapter = sds_ring->adapter;
2563
2564         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2565                 goto done;
2566         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2567                 writel(0xffffffff, adapter->tgt_status_reg);
2568                 goto done;
2569         }
2570
2571         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2572                 return IRQ_NONE;
2573
2574 done:
2575         adapter->ahw->diag_cnt++;
2576         qlcnic_enable_int(sds_ring);
2577         return IRQ_HANDLED;
2578 }
2579
2580 static irqreturn_t qlcnic_intr(int irq, void *data)
2581 {
2582         struct qlcnic_host_sds_ring *sds_ring = data;
2583         struct qlcnic_adapter *adapter = sds_ring->adapter;
2584
2585         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2586                 return IRQ_NONE;
2587
2588         napi_schedule(&sds_ring->napi);
2589
2590         return IRQ_HANDLED;
2591 }
2592
2593 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2594 {
2595         struct qlcnic_host_sds_ring *sds_ring = data;
2596         struct qlcnic_adapter *adapter = sds_ring->adapter;
2597
2598         /* clear interrupt */
2599         writel(0xffffffff, adapter->tgt_status_reg);
2600
2601         napi_schedule(&sds_ring->napi);
2602         return IRQ_HANDLED;
2603 }
2604
2605 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2606 {
2607         struct qlcnic_host_sds_ring *sds_ring = data;
2608
2609         napi_schedule(&sds_ring->napi);
2610         return IRQ_HANDLED;
2611 }
2612
2613 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2614 {
2615         struct qlcnic_host_tx_ring *tx_ring = data;
2616
2617         napi_schedule(&tx_ring->napi);
2618         return IRQ_HANDLED;
2619 }
2620
2621 #ifdef CONFIG_NET_POLL_CONTROLLER
2622 static void qlcnic_poll_controller(struct net_device *netdev)
2623 {
2624         int ring;
2625         struct qlcnic_host_sds_ring *sds_ring;
2626         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2627         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2628
2629         disable_irq(adapter->irq);
2630         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2631                 sds_ring = &recv_ctx->sds_rings[ring];
2632                 qlcnic_intr(adapter->irq, sds_ring);
2633         }
2634         enable_irq(adapter->irq);
2635 }
2636 #endif
2637
2638 static void
2639 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2640 {
2641         u32 val;
2642
2643         val = adapter->portnum & 0xf;
2644         val |= encoding << 7;
2645         val |= (jiffies - adapter->dev_rst_time) << 8;
2646
2647         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2648         adapter->dev_rst_time = jiffies;
2649 }
2650
2651 static int
2652 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2653 {
2654         u32  val;
2655
2656         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2657                         state != QLCNIC_DEV_NEED_QUISCENT);
2658
2659         if (qlcnic_api_lock(adapter))
2660                 return -EIO;
2661
2662         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2663
2664         if (state == QLCNIC_DEV_NEED_RESET)
2665                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2666         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2667                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2668
2669         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2670
2671         qlcnic_api_unlock(adapter);
2672
2673         return 0;
2674 }
2675
2676 static int
2677 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2678 {
2679         u32  val;
2680
2681         if (qlcnic_api_lock(adapter))
2682                 return -EBUSY;
2683
2684         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2685         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2686         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2687
2688         qlcnic_api_unlock(adapter);
2689
2690         return 0;
2691 }
2692
2693 static void
2694 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2695 {
2696         u32  val;
2697
2698         if (qlcnic_api_lock(adapter))
2699                 goto err;
2700
2701         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2702         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2703         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2704
2705         if (failed) {
2706                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2707                                     QLCNIC_DEV_FAILED);
2708                 dev_info(&adapter->pdev->dev,
2709                                 "Device state set to Failed. Please Reboot\n");
2710         } else if (!(val & 0x11111111))
2711                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2712                                     QLCNIC_DEV_COLD);
2713
2714         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2715         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2716         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2717
2718         qlcnic_api_unlock(adapter);
2719 err:
2720         adapter->fw_fail_cnt = 0;
2721         adapter->flags &= ~QLCNIC_FW_HANG;
2722         clear_bit(__QLCNIC_START_FW, &adapter->state);
2723         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2724 }
2725
2726 /* Grab api lock, before checking state */
2727 static int
2728 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2729 {
2730         int act, state, active_mask;
2731         struct qlcnic_hardware_context *ahw = adapter->ahw;
2732
2733         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2734         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2735
2736         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2737                 active_mask = (~(1 << (ahw->pci_func * 4)));
2738                 act = act & active_mask;
2739         }
2740
2741         if (((state & 0x11111111) == (act & 0x11111111)) ||
2742                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2743                 return 0;
2744         else
2745                 return 1;
2746 }
2747
2748 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2749 {
2750         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2751
2752         if (val != QLCNIC_DRV_IDC_VER) {
2753                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2754                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2755         }
2756
2757         return 0;
2758 }
2759
2760 static int
2761 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2762 {
2763         u32 val, prev_state;
2764         u8 dev_init_timeo = adapter->dev_init_timeo;
2765         u8 portnum = adapter->portnum;
2766         u8 ret;
2767
2768         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2769                 return 1;
2770
2771         if (qlcnic_api_lock(adapter))
2772                 return -1;
2773
2774         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2775         if (!(val & (1 << (portnum * 4)))) {
2776                 QLC_DEV_SET_REF_CNT(val, portnum);
2777                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2778         }
2779
2780         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2781         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2782
2783         switch (prev_state) {
2784         case QLCNIC_DEV_COLD:
2785                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2786                                     QLCNIC_DEV_INITIALIZING);
2787                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2788                                     QLCNIC_DRV_IDC_VER);
2789                 qlcnic_idc_debug_info(adapter, 0);
2790                 qlcnic_api_unlock(adapter);
2791                 return 1;
2792
2793         case QLCNIC_DEV_READY:
2794                 ret = qlcnic_check_idc_ver(adapter);
2795                 qlcnic_api_unlock(adapter);
2796                 return ret;
2797
2798         case QLCNIC_DEV_NEED_RESET:
2799                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2800                 QLC_DEV_SET_RST_RDY(val, portnum);
2801                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2802                 break;
2803
2804         case QLCNIC_DEV_NEED_QUISCENT:
2805                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2806                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2807                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2808                 break;
2809
2810         case QLCNIC_DEV_FAILED:
2811                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2812                 qlcnic_api_unlock(adapter);
2813                 return -1;
2814
2815         case QLCNIC_DEV_INITIALIZING:
2816         case QLCNIC_DEV_QUISCENT:
2817                 break;
2818         }
2819
2820         qlcnic_api_unlock(adapter);
2821
2822         do {
2823                 msleep(1000);
2824                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2825
2826                 if (prev_state == QLCNIC_DEV_QUISCENT)
2827                         continue;
2828         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2829
2830         if (!dev_init_timeo) {
2831                 dev_err(&adapter->pdev->dev,
2832                         "Waiting for device to initialize timeout\n");
2833                 return -1;
2834         }
2835
2836         if (qlcnic_api_lock(adapter))
2837                 return -1;
2838
2839         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2840         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2841         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2842
2843         ret = qlcnic_check_idc_ver(adapter);
2844         qlcnic_api_unlock(adapter);
2845
2846         return ret;
2847 }
2848
2849 static void
2850 qlcnic_fwinit_work(struct work_struct *work)
2851 {
2852         struct qlcnic_adapter *adapter = container_of(work,
2853                         struct qlcnic_adapter, fw_work.work);
2854         u32 dev_state = 0xf;
2855         u32 val;
2856
2857         if (qlcnic_api_lock(adapter))
2858                 goto err_ret;
2859
2860         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2861         if (dev_state == QLCNIC_DEV_QUISCENT ||
2862             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2863                 qlcnic_api_unlock(adapter);
2864                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2865                                                 FW_POLL_DELAY * 2);
2866                 return;
2867         }
2868
2869         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2870                 qlcnic_api_unlock(adapter);
2871                 goto wait_npar;
2872         }
2873
2874         if (dev_state == QLCNIC_DEV_INITIALIZING ||
2875             dev_state == QLCNIC_DEV_READY) {
2876                 dev_info(&adapter->pdev->dev, "Detected state change from "
2877                                 "DEV_NEED_RESET, skipping ack check\n");
2878                 goto skip_ack_check;
2879         }
2880
2881         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2882                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2883                                         adapter->reset_ack_timeo);
2884                 goto skip_ack_check;
2885         }
2886
2887         if (!qlcnic_check_drv_state(adapter)) {
2888 skip_ack_check:
2889                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2890
2891                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2892                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2893                                             QLCNIC_DEV_INITIALIZING);
2894                         set_bit(__QLCNIC_START_FW, &adapter->state);
2895                         QLCDB(adapter, DRV, "Restarting fw\n");
2896                         qlcnic_idc_debug_info(adapter, 0);
2897                         val = QLC_SHARED_REG_RD32(adapter,
2898                                                   QLCNIC_CRB_DRV_STATE);
2899                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2900                         QLC_SHARED_REG_WR32(adapter,
2901                                             QLCNIC_CRB_DRV_STATE, val);
2902                 }
2903
2904                 qlcnic_api_unlock(adapter);
2905
2906                 rtnl_lock();
2907                 if (adapter->ahw->fw_dump.enable &&
2908                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2909                         QLCDB(adapter, DRV, "Take FW dump\n");
2910                         qlcnic_dump_fw(adapter);
2911                         adapter->flags |= QLCNIC_FW_HANG;
2912                 }
2913                 rtnl_unlock();
2914
2915                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2916                 if (!adapter->nic_ops->start_firmware(adapter)) {
2917                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2918                         adapter->fw_wait_cnt = 0;
2919                         return;
2920                 }
2921                 goto err_ret;
2922         }
2923
2924         qlcnic_api_unlock(adapter);
2925
2926 wait_npar:
2927         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2928         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2929
2930         switch (dev_state) {
2931         case QLCNIC_DEV_READY:
2932                 if (!qlcnic_start_firmware(adapter)) {
2933                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2934                         adapter->fw_wait_cnt = 0;
2935                         return;
2936                 }
2937         case QLCNIC_DEV_FAILED:
2938                 break;
2939         default:
2940                 qlcnic_schedule_work(adapter,
2941                         qlcnic_fwinit_work, FW_POLL_DELAY);
2942                 return;
2943         }
2944
2945 err_ret:
2946         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2947                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2948         netif_device_attach(adapter->netdev);
2949         qlcnic_clr_all_drv_state(adapter, 0);
2950 }
2951
2952 static void
2953 qlcnic_detach_work(struct work_struct *work)
2954 {
2955         struct qlcnic_adapter *adapter = container_of(work,
2956                         struct qlcnic_adapter, fw_work.work);
2957         struct net_device *netdev = adapter->netdev;
2958         u32 status;
2959
2960         netif_device_detach(netdev);
2961
2962         /* Dont grab rtnl lock during Quiscent mode */
2963         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2964                 if (netif_running(netdev))
2965                         __qlcnic_down(adapter, netdev);
2966         } else
2967                 qlcnic_down(adapter, netdev);
2968
2969         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2970
2971         if (status & QLCNIC_RCODE_FATAL_ERROR) {
2972                 dev_err(&adapter->pdev->dev,
2973                         "Detaching the device: peg halt status1=0x%x\n",
2974                                         status);
2975
2976                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2977                         dev_err(&adapter->pdev->dev,
2978                         "On board active cooling fan failed. "
2979                                 "Device has been halted.\n");
2980                         dev_err(&adapter->pdev->dev,
2981                                 "Replace the adapter.\n");
2982                 }
2983
2984                 goto err_ret;
2985         }
2986
2987         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2988                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2989                         adapter->ahw->temp);
2990                 goto err_ret;
2991         }
2992
2993         /* Dont ack if this instance is the reset owner */
2994         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2995                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2996                         dev_err(&adapter->pdev->dev,
2997                                 "Failed to set driver state,"
2998                                         "detaching the device.\n");
2999                         goto err_ret;
3000                 }
3001         }
3002
3003         adapter->fw_wait_cnt = 0;
3004
3005         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3006
3007         return;
3008
3009 err_ret:
3010         netif_device_attach(netdev);
3011         qlcnic_clr_all_drv_state(adapter, 1);
3012 }
3013
3014 /*Transit NPAR state to NON Operational */
3015 static void
3016 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3017 {
3018         u32 state;
3019
3020         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3021         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3022                 return;
3023
3024         if (qlcnic_api_lock(adapter))
3025                 return;
3026         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3027                             QLCNIC_DEV_NPAR_NON_OPER);
3028         qlcnic_api_unlock(adapter);
3029 }
3030
3031 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
3032 {
3033         u32 state, xg_val = 0, gb_val = 0;
3034
3035         qlcnic_xg_set_xg0_mask(xg_val);
3036         qlcnic_xg_set_xg1_mask(xg_val);
3037         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3038         qlcnic_gb_set_gb0_mask(gb_val);
3039         qlcnic_gb_set_gb1_mask(gb_val);
3040         qlcnic_gb_set_gb2_mask(gb_val);
3041         qlcnic_gb_set_gb3_mask(gb_val);
3042         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3043         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3044                                 " on all ports\n");
3045         adapter->need_fw_reset = 1;
3046
3047         if (qlcnic_api_lock(adapter))
3048                 return;
3049
3050         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3051
3052         if (state == QLCNIC_DEV_READY) {
3053                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3054                                     QLCNIC_DEV_NEED_RESET);
3055                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3056                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3057                 qlcnic_idc_debug_info(adapter, 0);
3058         }
3059
3060         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3061                             QLCNIC_DEV_NPAR_NON_OPER);
3062         qlcnic_api_unlock(adapter);
3063 }
3064
3065 /* Transit to NPAR READY state from NPAR NOT READY state */
3066 static void
3067 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3068 {
3069         if (qlcnic_api_lock(adapter))
3070                 return;
3071
3072         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3073                             QLCNIC_DEV_NPAR_OPER);
3074         QLCDB(adapter, DRV, "NPAR operational state set\n");
3075
3076         qlcnic_api_unlock(adapter);
3077 }
3078
3079 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3080                           work_func_t func, int delay)
3081 {
3082         if (test_bit(__QLCNIC_AER, &adapter->state))
3083                 return;
3084
3085         INIT_DELAYED_WORK(&adapter->fw_work, func);
3086         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3087                            round_jiffies_relative(delay));
3088 }
3089
3090 static void
3091 qlcnic_attach_work(struct work_struct *work)
3092 {
3093         struct qlcnic_adapter *adapter = container_of(work,
3094                                 struct qlcnic_adapter, fw_work.work);
3095         struct net_device *netdev = adapter->netdev;
3096         u32 npar_state;
3097
3098         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3099                 npar_state = QLC_SHARED_REG_RD32(adapter,
3100                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3101                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3102                         qlcnic_clr_all_drv_state(adapter, 0);
3103                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3104                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3105                                                         FW_POLL_DELAY);
3106                 else
3107                         goto attach;
3108                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3109                 return;
3110         }
3111 attach:
3112         if (netif_running(netdev)) {
3113                 if (qlcnic_up(adapter, netdev))
3114                         goto done;
3115
3116                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3117         }
3118
3119 done:
3120         netif_device_attach(netdev);
3121         adapter->fw_fail_cnt = 0;
3122         adapter->flags &= ~QLCNIC_FW_HANG;
3123         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3124
3125         if (!qlcnic_clr_drv_state(adapter))
3126                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3127                                                         FW_POLL_DELAY);
3128 }
3129
3130 static int
3131 qlcnic_check_health(struct qlcnic_adapter *adapter)
3132 {
3133         u32 state = 0, heartbeat;
3134         u32 peg_status;
3135
3136         if (qlcnic_check_temp(adapter))
3137                 goto detach;
3138
3139         if (adapter->need_fw_reset)
3140                 qlcnic_dev_request_reset(adapter, 0);
3141
3142         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3143         if (state == QLCNIC_DEV_NEED_RESET) {
3144                 qlcnic_set_npar_non_operational(adapter);
3145                 adapter->need_fw_reset = 1;
3146         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3147                 goto detach;
3148
3149         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3150         if (heartbeat != adapter->heartbeat) {
3151                 adapter->heartbeat = heartbeat;
3152                 adapter->fw_fail_cnt = 0;
3153                 if (adapter->need_fw_reset)
3154                         goto detach;
3155
3156                 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset)
3157                         qlcnic_reset_hw_context(adapter);
3158
3159                 return 0;
3160         }
3161
3162         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3163                 return 0;
3164
3165         adapter->flags |= QLCNIC_FW_HANG;
3166
3167         qlcnic_dev_request_reset(adapter, 0);
3168
3169         if (qlcnic_auto_fw_reset)
3170                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3171
3172         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3173         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3174         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3175                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3176                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3177                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3178                         "PEG_NET_4_PC: 0x%x\n",
3179                         peg_status,
3180                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3181                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
3182                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
3183                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
3184                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
3185                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
3186         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3187                 dev_err(&adapter->pdev->dev,
3188                         "Firmware aborted with error code 0x00006700. "
3189                                 "Device is being reset.\n");
3190 detach:
3191         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3192                 QLCNIC_DEV_NEED_RESET;
3193
3194         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3195                                                       &adapter->state)) {
3196
3197                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3198                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3199         }
3200
3201         return 1;
3202 }
3203
3204 static void
3205 qlcnic_fw_poll_work(struct work_struct *work)
3206 {
3207         struct qlcnic_adapter *adapter = container_of(work,
3208                                 struct qlcnic_adapter, fw_work.work);
3209
3210         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3211                 goto reschedule;
3212
3213
3214         if (qlcnic_check_health(adapter))
3215                 return;
3216
3217         if (adapter->fhash.fnum)
3218                 qlcnic_prune_lb_filters(adapter);
3219
3220 reschedule:
3221         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3222 }
3223
3224 static int qlcnic_is_first_func(struct pci_dev *pdev)
3225 {
3226         struct pci_dev *oth_pdev;
3227         int val = pdev->devfn;
3228
3229         while (val-- > 0) {
3230                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3231                         (pdev->bus), pdev->bus->number,
3232                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3233                 if (!oth_pdev)
3234                         continue;
3235
3236                 if (oth_pdev->current_state != PCI_D3cold) {
3237                         pci_dev_put(oth_pdev);
3238                         return 0;
3239                 }
3240                 pci_dev_put(oth_pdev);
3241         }
3242         return 1;
3243 }
3244
3245 static int qlcnic_attach_func(struct pci_dev *pdev)
3246 {
3247         int err, first_func;
3248         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3249         struct net_device *netdev = adapter->netdev;
3250
3251         pdev->error_state = pci_channel_io_normal;
3252
3253         err = pci_enable_device(pdev);
3254         if (err)
3255                 return err;
3256
3257         pci_set_power_state(pdev, PCI_D0);
3258         pci_set_master(pdev);
3259         pci_restore_state(pdev);
3260
3261         first_func = qlcnic_is_first_func(pdev);
3262
3263         if (qlcnic_api_lock(adapter))
3264                 return -EINVAL;
3265
3266         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3267                 adapter->need_fw_reset = 1;
3268                 set_bit(__QLCNIC_START_FW, &adapter->state);
3269                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3270                                     QLCNIC_DEV_INITIALIZING);
3271                 QLCDB(adapter, DRV, "Restarting fw\n");
3272         }
3273         qlcnic_api_unlock(adapter);
3274
3275         err = qlcnic_start_firmware(adapter);
3276         if (err)
3277                 return err;
3278
3279         qlcnic_clr_drv_state(adapter);
3280         kfree(adapter->msix_entries);
3281         adapter->msix_entries = NULL;
3282         err = qlcnic_setup_intr(adapter, 0);
3283
3284         if (err) {
3285                 kfree(adapter->msix_entries);
3286                 netdev_err(netdev, "failed to setup interrupt\n");
3287                 return err;
3288         }
3289
3290         if (qlcnic_83xx_check(adapter)) {
3291                 /* register for NIC IDC AEN Events */
3292                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3293                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3294                 if (err) {
3295                         dev_err(&adapter->pdev->dev,
3296                                 "failed to setup mbx interrupt\n");
3297                         qlcnic_clr_all_drv_state(adapter, 1);
3298                         clear_bit(__QLCNIC_AER, &adapter->state);
3299                         goto done;
3300                 }
3301         }
3302
3303         if (netif_running(netdev)) {
3304                 err = qlcnic_attach(adapter);
3305                 if (err) {
3306                         qlcnic_clr_all_drv_state(adapter, 1);
3307                         clear_bit(__QLCNIC_AER, &adapter->state);
3308                         netif_device_attach(netdev);
3309                         return err;
3310                 }
3311
3312                 err = qlcnic_up(adapter, netdev);
3313                 if (err)
3314                         goto done;
3315
3316                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3317         }
3318  done:
3319         netif_device_attach(netdev);
3320         return err;
3321 }
3322
3323 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3324                                                 pci_channel_state_t state)
3325 {
3326         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3327         struct net_device *netdev = adapter->netdev;
3328
3329         if (state == pci_channel_io_perm_failure)
3330                 return PCI_ERS_RESULT_DISCONNECT;
3331
3332         if (state == pci_channel_io_normal)
3333                 return PCI_ERS_RESULT_RECOVERED;
3334
3335         set_bit(__QLCNIC_AER, &adapter->state);
3336         netif_device_detach(netdev);
3337
3338         cancel_delayed_work_sync(&adapter->fw_work);
3339
3340         if (netif_running(netdev))
3341                 qlcnic_down(adapter, netdev);
3342
3343         if (qlcnic_83xx_check(adapter)) {
3344                 qlcnic_83xx_free_mbx_intr(adapter);
3345                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
3346                 cancel_delayed_work_sync(&adapter->idc_aen_work);
3347         }
3348
3349         qlcnic_detach(adapter);
3350         qlcnic_teardown_intr(adapter);
3351
3352         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3353
3354         pci_save_state(pdev);
3355         pci_disable_device(pdev);
3356
3357         return PCI_ERS_RESULT_NEED_RESET;
3358 }
3359
3360 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3361 {
3362         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3363                                 PCI_ERS_RESULT_RECOVERED;
3364 }
3365
3366 static void qlcnic_io_resume(struct pci_dev *pdev)
3367 {
3368         u32 state;
3369         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3370
3371         pci_cleanup_aer_uncorrect_error_status(pdev);
3372         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3373         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3374                                                             &adapter->state))
3375                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3376                                                 FW_POLL_DELAY);
3377 }
3378
3379 static int
3380 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3381 {
3382         int err;
3383
3384         err = qlcnic_can_start_firmware(adapter);
3385         if (err)
3386                 return err;
3387
3388         err = qlcnic_check_npar_opertional(adapter);
3389         if (err)
3390                 return err;
3391
3392         err = qlcnic_initialize_nic(adapter);
3393         if (err)
3394                 return err;
3395
3396         qlcnic_check_options(adapter);
3397
3398         err = qlcnic_set_eswitch_port_config(adapter);
3399         if (err)
3400                 return err;
3401
3402         adapter->need_fw_reset = 0;
3403
3404         return err;
3405 }
3406
3407 int qlcnic_validate_max_rss(struct qlcnic_adapter *adapter,
3408                             __u32 val)
3409 {
3410         struct net_device *netdev = adapter->netdev;
3411         u8 max_hw = adapter->ahw->max_rx_ques;
3412         u32 max_allowed;
3413
3414         if (val > QLC_MAX_SDS_RINGS) {
3415                 netdev_err(netdev, "RSS value should not be higher than %u\n",
3416                            QLC_MAX_SDS_RINGS);
3417                 return -EINVAL;
3418         }
3419
3420         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3421                                                  num_online_cpus()));
3422         if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3423                 if (!is_power_of_2(val))
3424                         netdev_err(netdev, "RSS value should be a power of 2\n");
3425
3426                 if (val < 2)
3427                         netdev_err(netdev, "RSS value should not be lower than 2\n");
3428
3429                 if (val > max_hw)
3430                         netdev_err(netdev,
3431                                    "RSS value should not be higher than[%u], the max RSS rings supported by the adapter\n",
3432                                    max_hw);
3433
3434                 if (val > num_online_cpus())
3435                         netdev_err(netdev,
3436                                    "RSS value should not be higher than[%u], number of online CPUs in the system\n",
3437                                    num_online_cpus());
3438
3439                 netdev_err(netdev, "Unable to configure %u RSS rings\n", val);
3440
3441                 return -EINVAL;
3442         }
3443         return 0;
3444 }
3445
3446 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len)
3447 {
3448         int err;
3449         struct net_device *netdev = adapter->netdev;
3450
3451         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3452                 return -EBUSY;
3453
3454         netif_device_detach(netdev);
3455         if (netif_running(netdev))
3456                 __qlcnic_down(adapter, netdev);
3457
3458         qlcnic_detach(adapter);
3459
3460         if (qlcnic_83xx_check(adapter)) {
3461                 qlcnic_83xx_free_mbx_intr(adapter);
3462                 qlcnic_83xx_enable_mbx_poll(adapter);
3463         }
3464
3465         qlcnic_teardown_intr(adapter);
3466         err = qlcnic_setup_intr(adapter, data);
3467         if (err) {
3468                 kfree(adapter->msix_entries);
3469                 netdev_err(netdev, "failed to setup interrupt\n");
3470                 return err;
3471         }
3472
3473         if (qlcnic_83xx_check(adapter)) {
3474                 /* register for NIC IDC AEN Events */
3475                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3476                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3477                 qlcnic_83xx_disable_mbx_poll(adapter);
3478                 if (err) {
3479                         dev_err(&adapter->pdev->dev,
3480                                 "failed to setup mbx interrupt\n");
3481                         goto done;
3482                 }
3483         }
3484
3485         if (netif_running(netdev)) {
3486                 err = qlcnic_attach(adapter);
3487                 if (err)
3488                         goto done;
3489                 err = __qlcnic_up(adapter, netdev);
3490                 if (err)
3491                         goto done;
3492                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3493         }
3494         err = len;
3495  done:
3496         netif_device_attach(netdev);
3497         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3498         return err;
3499 }
3500
3501 #ifdef CONFIG_INET
3502
3503 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3504
3505 static void
3506 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3507                         struct net_device *dev, unsigned long event)
3508 {
3509         struct in_device *indev;
3510
3511         indev = in_dev_get(dev);
3512         if (!indev)
3513                 return;
3514
3515         for_ifa(indev) {
3516                 switch (event) {
3517                 case NETDEV_UP:
3518                         qlcnic_config_ipaddr(adapter,
3519                                         ifa->ifa_address, QLCNIC_IP_UP);
3520                         break;
3521                 case NETDEV_DOWN:
3522                         qlcnic_config_ipaddr(adapter,
3523                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3524                         break;
3525                 default:
3526                         break;
3527                 }
3528         } endfor_ifa(indev);
3529
3530         in_dev_put(indev);
3531 }
3532
3533 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3534 {
3535         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3536         struct net_device *dev;
3537         u16 vid;
3538
3539         qlcnic_config_indev_addr(adapter, netdev, event);
3540
3541         rcu_read_lock();
3542         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3543                 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
3544                 if (!dev)
3545                         continue;
3546                 qlcnic_config_indev_addr(adapter, dev, event);
3547         }
3548         rcu_read_unlock();
3549 }
3550
3551 static int qlcnic_netdev_event(struct notifier_block *this,
3552                                  unsigned long event, void *ptr)
3553 {
3554         struct qlcnic_adapter *adapter;
3555         struct net_device *dev = (struct net_device *)ptr;
3556
3557 recheck:
3558         if (dev == NULL)
3559                 goto done;
3560
3561         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3562                 dev = vlan_dev_real_dev(dev);
3563                 goto recheck;
3564         }
3565
3566         if (!is_qlcnic_netdev(dev))
3567                 goto done;
3568
3569         adapter = netdev_priv(dev);
3570
3571         if (!adapter)
3572                 goto done;
3573
3574         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3575                 goto done;
3576
3577         qlcnic_config_indev_addr(adapter, dev, event);
3578 done:
3579         return NOTIFY_DONE;
3580 }
3581
3582 static int
3583 qlcnic_inetaddr_event(struct notifier_block *this,
3584                 unsigned long event, void *ptr)
3585 {
3586         struct qlcnic_adapter *adapter;
3587         struct net_device *dev;
3588
3589         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3590
3591         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3592
3593 recheck:
3594         if (dev == NULL)
3595                 goto done;
3596
3597         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3598                 dev = vlan_dev_real_dev(dev);
3599                 goto recheck;
3600         }
3601
3602         if (!is_qlcnic_netdev(dev))
3603                 goto done;
3604
3605         adapter = netdev_priv(dev);
3606
3607         if (!adapter)
3608                 goto done;
3609
3610         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3611                 goto done;
3612
3613         switch (event) {
3614         case NETDEV_UP:
3615                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3616
3617                 break;
3618         case NETDEV_DOWN:
3619                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3620
3621                 break;
3622         default:
3623                 break;
3624         }
3625
3626 done:
3627         return NOTIFY_DONE;
3628 }
3629
3630 static struct notifier_block    qlcnic_netdev_cb = {
3631         .notifier_call = qlcnic_netdev_event,
3632 };
3633
3634 static struct notifier_block qlcnic_inetaddr_cb = {
3635         .notifier_call = qlcnic_inetaddr_event,
3636 };
3637 #else
3638 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3639 { }
3640 #endif
3641 static const struct pci_error_handlers qlcnic_err_handler = {
3642         .error_detected = qlcnic_io_error_detected,
3643         .slot_reset = qlcnic_io_slot_reset,
3644         .resume = qlcnic_io_resume,
3645 };
3646
3647 static struct pci_driver qlcnic_driver = {
3648         .name = qlcnic_driver_name,
3649         .id_table = qlcnic_pci_tbl,
3650         .probe = qlcnic_probe,
3651         .remove = qlcnic_remove,
3652 #ifdef CONFIG_PM
3653         .suspend = qlcnic_suspend,
3654         .resume = qlcnic_resume,
3655 #endif
3656         .shutdown = qlcnic_shutdown,
3657         .err_handler = &qlcnic_err_handler,
3658 #ifdef CONFIG_QLCNIC_SRIOV
3659         .sriov_configure = qlcnic_pci_sriov_configure,
3660 #endif
3661
3662 };
3663
3664 static int __init qlcnic_init_module(void)
3665 {
3666         int ret;
3667
3668         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3669
3670 #ifdef CONFIG_INET
3671         register_netdevice_notifier(&qlcnic_netdev_cb);
3672         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3673 #endif
3674
3675         ret = pci_register_driver(&qlcnic_driver);
3676         if (ret) {
3677 #ifdef CONFIG_INET
3678                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3679                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3680 #endif
3681         }
3682
3683         return ret;
3684 }
3685
3686 module_init(qlcnic_init_module);
3687
3688 static void __exit qlcnic_exit_module(void)
3689 {
3690         pci_unregister_driver(&qlcnic_driver);
3691
3692 #ifdef CONFIG_INET
3693         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3694         unregister_netdevice_notifier(&qlcnic_netdev_cb);
3695 #endif
3696 }
3697
3698 module_exit(qlcnic_exit_module);