Quelle  qlcnic_main.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * QLogic qlcnic NIC Driver
 * Copyright (c) 2009-2013 QLogic Corporation
 */

#include <linux/vmalloc.h>
#include <linux/interrupt.h>
#include <linux/swab.h>
#include <linux/dma-mapping.h>
#include <linux/if_vlan.h>
#include <net/ip.h>
#include <linux/ipv6.h>
#include <linux/inetdevice.h>
#include <linux/log2.h>
#include <linux/pci.h>
#include <net/vxlan.h>

#include "qlcnic.h"
#include "qlcnic_sriov.h"
#include "qlcnic_hw.h"

MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);

char qlcnic_driver_name[] = "qlcnic";
static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
 "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;

static int qlcnic_mac_learn;
module_param(qlcnic_mac_learn, int, 0444);
MODULE_PARM_DESC(qlcnic_mac_learn,
   "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");

int qlcnic_use_msi = 1;
MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
module_param_named(use_msi, qlcnic_use_msi, int, 0444);

int qlcnic_use_msi_x = 1;
MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);

int qlcnic_auto_fw_reset = 1;
MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);

int qlcnic_load_fw_file;
MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file, 2=POST in fast mode, 3= POST in medium mode, 4=POST in slow mode)");
module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);

static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
static void qlcnic_remove(struct pci_dev *pdev);
static int qlcnic_open(struct net_device *netdev);
static int qlcnic_close(struct net_device *netdev);
static void qlcnic_tx_timeout(struct net_device *netdev, unsigned int txqueue);
static void qlcnic_attach_work(struct work_struct *work);
static void qlcnic_fwinit_work(struct work_struct *work);

static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);

static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
static irqreturn_t qlcnic_intr(int irq, void *data);
static irqreturn_t qlcnic_msi_intr(int irq, void *data);
static irqreturn_t qlcnic_msix_intr(int irq, void *data);
static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);

static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
static int qlcnic_start_firmware(struct qlcnic_adapter *);

static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);

static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
static void qlcnic_82xx_io_resume(struct pci_dev *);
static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
            pci_channel_state_t);
static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
{
 struct qlcnic_hardware_context *ahw = adapter->ahw;

 if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
  return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
 else
  return 1;
}

/*  PCI Device ID Table  */
#define ENTRY(device) \
 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}

static const struct pci_device_id qlcnic_pci_tbl[] = {
 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE8830),
 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE8C30),
 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
 {0,}
};

MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);


inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
{
 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
}

static const u32 msi_tgt_status[8] = {
 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
};

static const u32 qlcnic_reg_tbl[] = {
 0x1B20A8, /* PEG_HALT_STAT1 */
 0x1B20AC, /* PEG_HALT_STAT2 */
 0x1B20B0, /* FW_HEARTBEAT */
 0x1B2100, /* LOCK ID */
 0x1B2128, /* FW_CAPABILITIES */
 0x1B2138, /* drv active */
 0x1B2140, /* dev state */
 0x1B2144, /* drv state */
 0x1B2148, /* drv scratch */
 0x1B214C, /* dev partition info */
 0x1B2174, /* drv idc ver */
 0x1B2150, /* fw version major */
 0x1B2154, /* fw version minor */
 0x1B2158, /* fw version sub */
 0x1B219C, /* npar state */
 0x1B21FC, /* FW_IMG_VALID */
 0x1B2250, /* CMD_PEG_STATE */
 0x1B233C, /* RCV_PEG_STATE */
 0x1B23B4, /* ASIC TEMP */
 0x1B216C, /* FW api */
 0x1B2170, /* drv op mode */
 0x13C010, /* flash lock */
 0x13C014, /* flash unlock */
};

static const struct qlcnic_board_info qlcnic_boards[] = {
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE844X,
   0x0,
   0x0,
   "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE834X,
   PCI_VENDOR_ID_QLOGIC,
   0x24e,
   "8300 Series Dual Port 10GbE Converged Network Adapter "
   "(TCP/IP Networking)" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE834X,
   PCI_VENDOR_ID_QLOGIC,
   0x243,
   "8300 Series Single Port 10GbE Converged Network Adapter "
   "(TCP/IP Networking)" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE834X,
   PCI_VENDOR_ID_QLOGIC,
   0x24a,
   "8300 Series Dual Port 10GbE Converged Network Adapter "
   "(TCP/IP Networking)" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE834X,
   PCI_VENDOR_ID_QLOGIC,
   0x246,
   "8300 Series Dual Port 10GbE Converged Network Adapter "
   "(TCP/IP Networking)" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE834X,
   PCI_VENDOR_ID_QLOGIC,
   0x252,
   "8300 Series Dual Port 10GbE Converged Network Adapter "
   "(TCP/IP Networking)" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE834X,
   PCI_VENDOR_ID_QLOGIC,
   0x26e,
   "8300 Series Dual Port 10GbE Converged Network Adapter "
   "(TCP/IP Networking)" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE834X,
   PCI_VENDOR_ID_QLOGIC,
   0x260,
   "8300 Series Dual Port 10GbE Converged Network Adapter "
   "(TCP/IP Networking)" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE834X,
   PCI_VENDOR_ID_QLOGIC,
   0x266,
   "8300 Series Single Port 10GbE Converged Network Adapter "
   "(TCP/IP Networking)" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE834X,
   PCI_VENDOR_ID_QLOGIC,
   0x269,
   "8300 Series Dual Port 10GbE Converged Network Adapter "
   "(TCP/IP Networking)" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE834X,
   PCI_VENDOR_ID_QLOGIC,
   0x271,
   "8300 Series Dual Port 10GbE Converged Network Adapter "
   "(TCP/IP Networking)" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE834X,
   0x0, 0x0, "8300 Series 1/10GbE Controller" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE8830,
   0x0,
   0x0,
   "8830 Series 1/10GbE Controller" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE824X,
   PCI_VENDOR_ID_QLOGIC,
   0x203,
   "8200 Series Single Port 10GbE Converged Network Adapter"
   "(TCP/IP Networking)" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE824X,
   PCI_VENDOR_ID_QLOGIC,
   0x207,
   "8200 Series Dual Port 10GbE Converged Network Adapter"
   "(TCP/IP Networking)" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE824X,
   PCI_VENDOR_ID_QLOGIC,
   0x20b,
   "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE824X,
   PCI_VENDOR_ID_QLOGIC,
   0x20c,
   "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE824X,
   PCI_VENDOR_ID_QLOGIC,
   0x20f,
   "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE824X,
   0x103c, 0x3733,
   "NC523SFP 10Gb 2-port Server Adapter" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE824X,
   0x103c, 0x3346,
   "CN1000Q Dual Port Converged Network Adapter" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE824X,
   PCI_VENDOR_ID_QLOGIC,
   0x210,
   "QME8242-k 10GbE Dual Port Mezzanine Card" },
 { PCI_VENDOR_ID_QLOGIC,
   PCI_DEVICE_ID_QLOGIC_QLE824X,
   0x0, 0x0, "cLOM8214 1/10GbE Controller" },
};

#define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)

static const
struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;

int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
{
 int size = sizeof(struct qlcnic_host_sds_ring) * count;

 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);

 return recv_ctx->sds_rings == NULL;
}

void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
{
 kfree(recv_ctx->sds_rings);
 recv_ctx->sds_rings = NULL;
}

int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
{
 struct net_device *netdev = adapter->netdev;
 struct pci_dev *pdev = adapter->pdev;
 u8 mac_addr[ETH_ALEN];
 int ret;

 ret = qlcnic_get_mac_address(adapter, mac_addr,
         adapter->ahw->pci_func);
 if (ret)
  return ret;

 eth_hw_addr_set(netdev, mac_addr);
 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);

 /* set station address */

 if (!is_valid_ether_addr(netdev->dev_addr))
  dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
     netdev->dev_addr);

 return 0;
}

static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
{
 struct qlcnic_mac_vlan_list *cur;

 list_for_each_entry(cur, &adapter->mac_list, list) {
  if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
   qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
        0, QLCNIC_MAC_DEL);
   list_del(&cur->list);
   kfree(cur);
   return;
  }
 }
}

static int qlcnic_set_mac(struct net_device *netdev, void *p)
{
 struct qlcnic_adapter *adapter = netdev_priv(netdev);
 struct sockaddr *addr = p;

 if (qlcnic_sriov_vf_check(adapter))
  return -EINVAL;

 if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
  return -EOPNOTSUPP;

 if (!is_valid_ether_addr(addr->sa_data))
  return -EINVAL;

 if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data) &&
     ether_addr_equal_unaligned(netdev->dev_addr, addr->sa_data))
  return 0;

 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
  netif_device_detach(netdev);
  qlcnic_napi_disable(adapter);
 }

 qlcnic_delete_adapter_mac(adapter);
 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 eth_hw_addr_set(netdev, addr->sa_data);
 qlcnic_set_multi(adapter->netdev);

 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
  netif_device_attach(netdev);
  qlcnic_napi_enable(adapter);
 }
 return 0;
}

static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
   struct net_device *netdev,
   const unsigned char *addr, u16 vid, bool *notified,
   struct netlink_ext_ack *extack)
{
 struct qlcnic_adapter *adapter = netdev_priv(netdev);
 int err = -EOPNOTSUPP;

 if (!adapter->fdb_mac_learn)
  return ndo_dflt_fdb_del(ndm, tb, netdev, addr, vid);

 if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
     qlcnic_sriov_check(adapter)) {
  if (is_unicast_ether_addr(addr)) {
   err = dev_uc_del(netdev, addr);
   if (!err)
    err = qlcnic_nic_del_mac(adapter, addr);
  } else if (is_multicast_ether_addr(addr)) {
   err = dev_mc_del(netdev, addr);
  } else {
   err =  -EINVAL;
  }
 }
 return err;
}

static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
   struct net_device *netdev,
   const unsigned char *addr, u16 vid, u16 flags,
   bool *notified, struct netlink_ext_ack *extack)
{
 struct qlcnic_adapter *adapter = netdev_priv(netdev);
 int err = 0;

 if (!adapter->fdb_mac_learn)
  return ndo_dflt_fdb_add(ndm, tb, netdev, addr, vid, flags);

 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
     !qlcnic_sriov_check(adapter)) {
  pr_info("%s: FDB e-switch is not enabled\n", __func__);
  return -EOPNOTSUPP;
 }

 if (ether_addr_equal(addr, adapter->mac_addr))
  return err;

 if (is_unicast_ether_addr(addr)) {
  if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
   err = dev_uc_add_excl(netdev, addr);
  else
   err = -ENOMEM;
 } else if (is_multicast_ether_addr(addr)) {
  err = dev_mc_add_excl(netdev, addr);
 } else {
  err = -EINVAL;
 }

 return err;
}

static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
   struct net_device *netdev,
   struct net_device *filter_dev, int *idx)
{
 struct qlcnic_adapter *adapter = netdev_priv(netdev);
 int err = 0;

 if (!adapter->fdb_mac_learn)
  return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);

 if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
     qlcnic_sriov_check(adapter))
  err = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);

 return err;
}

static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
{
 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
  usleep_range(10000, 11000);

 if (!adapter->fw_work.work.func)
  return;

 cancel_delayed_work_sync(&adapter->fw_work);
}

static int qlcnic_get_phys_port_id(struct net_device *netdev,
       struct netdev_phys_item_id *ppid)
{
 struct qlcnic_adapter *adapter = netdev_priv(netdev);
 struct qlcnic_hardware_context *ahw = adapter->ahw;

 if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
  return -EOPNOTSUPP;

 ppid->id_len = sizeof(ahw->phys_port_id);
 memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);

 return 0;
}

static int qlcnic_udp_tunnel_sync(struct net_device *dev, unsigned int table)
{
 struct qlcnic_adapter *adapter = netdev_priv(dev);
 struct udp_tunnel_info ti;
 int err;

 udp_tunnel_nic_get_port(dev, table, 0, &ti);
 if (ti.port) {
  err = qlcnic_set_vxlan_port(adapter, ntohs(ti.port));
  if (err)
   return err;
 }

 return qlcnic_set_vxlan_parsing(adapter, ntohs(ti.port));
}

static const struct udp_tunnel_nic_info qlcnic_udp_tunnels = {
 .sync_table = qlcnic_udp_tunnel_sync,
 .tables  = {
  { .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN, },
 },
};

static netdev_features_t qlcnic_features_check(struct sk_buff *skb,
            struct net_device *dev,
            netdev_features_t features)
{
 features = vlan_features_check(skb, features);
 return vxlan_features_check(skb, features);
}

static const struct net_device_ops qlcnic_netdev_ops = {
 .ndo_open    = qlcnic_open,
 .ndo_stop    = qlcnic_close,
 .ndo_start_xmit    = qlcnic_xmit_frame,
 .ndo_get_stats    = qlcnic_get_stats,
 .ndo_validate_addr = eth_validate_addr,
 .ndo_set_rx_mode   = qlcnic_set_multi,
 .ndo_set_mac_address    = qlcnic_set_mac,
 .ndo_change_mtu    = qlcnic_change_mtu,
 .ndo_fix_features  = qlcnic_fix_features,
 .ndo_set_features  = qlcnic_set_features,
 .ndo_tx_timeout    = qlcnic_tx_timeout,
 .ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add,
 .ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del,
 .ndo_fdb_add  = qlcnic_fdb_add,
 .ndo_fdb_del  = qlcnic_fdb_del,
 .ndo_fdb_dump  = qlcnic_fdb_dump,
 .ndo_get_phys_port_id = qlcnic_get_phys_port_id,
 .ndo_features_check = qlcnic_features_check,
#ifdef CONFIG_QLCNIC_SRIOV
 .ndo_set_vf_mac  = qlcnic_sriov_set_vf_mac,
 .ndo_set_vf_rate = qlcnic_sriov_set_vf_tx_rate,
 .ndo_get_vf_config = qlcnic_sriov_get_vf_config,
 .ndo_set_vf_vlan = qlcnic_sriov_set_vf_vlan,
 .ndo_set_vf_spoofchk = qlcnic_sriov_set_vf_spoofchk,
#endif
};

static const struct net_device_ops qlcnic_netdev_failed_ops = {
 .ndo_open    = qlcnic_open,
};

static struct qlcnic_nic_template qlcnic_ops = {
 .config_bridged_mode = qlcnic_config_bridged_mode,
 .config_led  = qlcnic_82xx_config_led,
 .start_firmware  = qlcnic_82xx_start_firmware,
 .request_reset  = qlcnic_82xx_dev_request_reset,
 .cancel_idc_work = qlcnic_82xx_cancel_idc_work,
 .napi_add  = qlcnic_82xx_napi_add,
 .napi_del  = qlcnic_82xx_napi_del,
 .config_ipaddr  = qlcnic_82xx_config_ipaddr,
 .shutdown  = qlcnic_82xx_shutdown,
 .resume   = qlcnic_82xx_resume,
 .clear_legacy_intr = qlcnic_82xx_clear_legacy_intr,
};

struct qlcnic_nic_template qlcnic_vf_ops = {
 .config_bridged_mode = qlcnicvf_config_bridged_mode,
 .config_led  = qlcnicvf_config_led,
 .start_firmware  = qlcnicvf_start_firmware
};

static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 .read_crb   = qlcnic_82xx_read_crb,
 .write_crb   = qlcnic_82xx_write_crb,
 .read_reg   = qlcnic_82xx_hw_read_wx_2M,
 .write_reg   = qlcnic_82xx_hw_write_wx_2M,
 .get_mac_address  = qlcnic_82xx_get_mac_address,
 .setup_intr   = qlcnic_82xx_setup_intr,
 .alloc_mbx_args   = qlcnic_82xx_alloc_mbx_args,
 .mbx_cmd   = qlcnic_82xx_issue_cmd,
 .get_func_no   = qlcnic_82xx_get_func_no,
 .api_lock   = qlcnic_82xx_api_lock,
 .api_unlock   = qlcnic_82xx_api_unlock,
 .add_sysfs   = qlcnic_82xx_add_sysfs,
 .remove_sysfs   = qlcnic_82xx_remove_sysfs,
 .process_lb_rcv_ring_diag = qlcnic_82xx_process_rcv_ring_diag,
 .create_rx_ctx   = qlcnic_82xx_fw_cmd_create_rx_ctx,
 .create_tx_ctx   = qlcnic_82xx_fw_cmd_create_tx_ctx,
 .del_rx_ctx   = qlcnic_82xx_fw_cmd_del_rx_ctx,
 .del_tx_ctx   = qlcnic_82xx_fw_cmd_del_tx_ctx,
 .setup_link_event  = qlcnic_82xx_linkevent_request,
 .get_nic_info   = qlcnic_82xx_get_nic_info,
 .get_pci_info   = qlcnic_82xx_get_pci_info,
 .set_nic_info   = qlcnic_82xx_set_nic_info,
 .change_macvlan   = qlcnic_82xx_sre_macaddr_change,
 .napi_enable   = qlcnic_82xx_napi_enable,
 .napi_disable   = qlcnic_82xx_napi_disable,
 .config_intr_coal  = qlcnic_82xx_config_intr_coalesce,
 .config_rss   = qlcnic_82xx_config_rss,
 .config_hw_lro   = qlcnic_82xx_config_hw_lro,
 .config_loopback  = qlcnic_82xx_set_lb_mode,
 .clear_loopback   = qlcnic_82xx_clear_lb_mode,
 .config_promisc_mode  = qlcnic_82xx_nic_set_promisc,
 .change_l2_filter  = qlcnic_82xx_change_filter,
 .get_board_info   = qlcnic_82xx_get_board_info,
 .set_mac_filter_count  = qlcnic_82xx_set_mac_filter_count,
 .free_mac_list   = qlcnic_82xx_free_mac_list,
 .read_phys_port_id  = qlcnic_82xx_read_phys_port_id,
 .io_error_detected  = qlcnic_82xx_io_error_detected,
 .io_slot_reset   = qlcnic_82xx_io_slot_reset,
 .io_resume   = qlcnic_82xx_io_resume,
 .get_beacon_state  = qlcnic_82xx_get_beacon_state,
 .enable_sds_intr  = qlcnic_82xx_enable_sds_intr,
 .disable_sds_intr  = qlcnic_82xx_disable_sds_intr,
 .enable_tx_intr   = qlcnic_82xx_enable_tx_intr,
 .disable_tx_intr  = qlcnic_82xx_disable_tx_intr,
 .get_saved_state  = qlcnic_82xx_get_saved_state,
 .set_saved_state  = qlcnic_82xx_set_saved_state,
 .cache_tmpl_hdr_values  = qlcnic_82xx_cache_tmpl_hdr_values,
 .get_cap_size   = qlcnic_82xx_get_cap_size,
 .set_sys_info   = qlcnic_82xx_set_sys_info,
 .store_cap_mask   = qlcnic_82xx_store_cap_mask,
 .encap_rx_offload               = qlcnic_82xx_encap_rx_offload,
 .encap_tx_offload               = qlcnic_82xx_encap_tx_offload,
};

static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
{
 struct qlcnic_hardware_context *ahw = adapter->ahw;

 if (qlcnic_82xx_check(adapter) &&
     (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
  test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
  return 0;
 } else {
  return 1;
 }
}

static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
       int queue_type)
{
 int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;

 if (queue_type == QLCNIC_RX_QUEUE)
  max_rings = adapter->max_sds_rings;
 else if (queue_type == QLCNIC_TX_QUEUE)
  max_rings = adapter->max_tx_rings;

 num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
           max_rings));

 if (ring_cnt > num_rings)
  return num_rings;
 else
  return ring_cnt;
}

void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
{
 /* 83xx adapter does not have max_tx_rings intialized in probe */
 if (adapter->max_tx_rings)
  adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
        QLCNIC_TX_QUEUE);
 else
  adapter->drv_tx_rings = tx_cnt;
}

void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
{
 /* 83xx adapter does not have max_sds_rings intialized in probe */
 if (adapter->max_sds_rings)
  adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
         QLCNIC_RX_QUEUE);
 else
  adapter->drv_sds_rings = rx_cnt;
}

int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
{
 struct pci_dev *pdev = adapter->pdev;
 int num_msix = 0, err = 0, vector;

 adapter->flags &= ~QLCNIC_TSS_RSS;

 if (adapter->drv_tss_rings > 0)
  num_msix += adapter->drv_tss_rings;
 else
  num_msix += adapter->drv_tx_rings;

 if (adapter->drv_rss_rings > 0)
  num_msix += adapter->drv_rss_rings;
 else
  num_msix += adapter->drv_sds_rings;

 if (qlcnic_83xx_check(adapter))
  num_msix += 1;

 if (!adapter->msix_entries) {
  adapter->msix_entries = kcalloc(num_msix,
      sizeof(struct msix_entry),
      GFP_KERNEL);
  if (!adapter->msix_entries)
   return -ENOMEM;
 }

 for (vector = 0; vector < num_msix; vector++)
  adapter->msix_entries[vector].entry = vector;

restore:
 err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
 if (err == -ENOSPC) {
  if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
   return err;

  netdev_info(adapter->netdev,
       "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
       num_msix, err);

  num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;

  /* Set rings to 0 so we can restore original TSS/RSS count */
  adapter->drv_tss_rings = 0;
  adapter->drv_rss_rings = 0;

  if (qlcnic_83xx_check(adapter))
   num_msix += 1;

  netdev_info(adapter->netdev,
       "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
       adapter->drv_tx_rings, adapter->drv_sds_rings,
       num_msix);

  goto restore;
 } else if (err < 0) {
  return err;
 }

 adapter->ahw->num_msix = num_msix;
 if (adapter->drv_tss_rings > 0)
  adapter->drv_tx_rings = adapter->drv_tss_rings;

 if (adapter->drv_rss_rings > 0)
  adapter->drv_sds_rings = adapter->drv_rss_rings;

 return 0;
}

int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
{
 struct pci_dev *pdev = adapter->pdev;
 int err, vector;

 if (!adapter->msix_entries) {
  adapter->msix_entries = kcalloc(num_msix,
      sizeof(struct msix_entry),
      GFP_KERNEL);
  if (!adapter->msix_entries)
   return -ENOMEM;
 }

 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);

 if (adapter->ahw->msix_supported) {
enable_msix:
  for (vector = 0; vector < num_msix; vector++)
   adapter->msix_entries[vector].entry = vector;

  err = pci_enable_msix_range(pdev,
         adapter->msix_entries, 1, num_msix);

  if (err == num_msix) {
   adapter->flags |= QLCNIC_MSIX_ENABLED;
   adapter->ahw->num_msix = num_msix;
   dev_info(&pdev->dev, "using msi-x interrupts\n");
   return 0;
  } else if (err > 0) {
   pci_disable_msix(pdev);

   dev_info(&pdev->dev,
     "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
     num_msix, err);

   if (qlcnic_82xx_check(adapter)) {
    num_msix = rounddown_pow_of_two(err);
    if (err < QLCNIC_82XX_MINIMUM_VECTOR)
     return -ENOSPC;
   } else {
    num_msix = rounddown_pow_of_two(err - 1);
    num_msix += 1;
    if (err < QLCNIC_83XX_MINIMUM_VECTOR)
     return -ENOSPC;
   }

   if (qlcnic_82xx_check(adapter) &&
       !qlcnic_check_multi_tx(adapter)) {
    adapter->drv_sds_rings = num_msix;
    adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
   } else {
    /* Distribute vectors equally */
    adapter->drv_tx_rings = num_msix / 2;
    adapter->drv_sds_rings = adapter->drv_tx_rings;
   }

   if (num_msix) {
    dev_info(&pdev->dev,
      "Trying to allocate %d MSI-X interrupt vectors\n",
      num_msix);
    goto enable_msix;
   }
  } else {
   dev_info(&pdev->dev,
     "Unable to allocate %d MSI-X vectors, err=%d\n",
     num_msix, err);
   return err;
  }
 }

 return -EIO;
}

static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
{
 int num_msix;

 num_msix = adapter->drv_sds_rings;

 if (qlcnic_check_multi_tx(adapter))
  num_msix += adapter->drv_tx_rings;
 else
  num_msix += QLCNIC_SINGLE_RING;

 return num_msix;
}

static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
{
 int err = 0;
 u32 offset, mask_reg;
 const struct qlcnic_legacy_intr_set *legacy_intrp;
 struct qlcnic_hardware_context *ahw = adapter->ahw;
 struct pci_dev *pdev = adapter->pdev;

 if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
  adapter->flags |= QLCNIC_MSI_ENABLED;
  offset = msi_tgt_status[adapter->ahw->pci_func];
  adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
           offset);
  dev_info(&pdev->dev, "using msi interrupts\n");
  adapter->msix_entries[0].vector = pdev->irq;
  return err;
 }

 if (qlcnic_use_msi || qlcnic_use_msi_x)
  return -EOPNOTSUPP;

 legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 offset = legacy_intrp->tgt_status_reg;
 adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 mask_reg = legacy_intrp->tgt_mask_reg;
 adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 dev_info(&pdev->dev, "using legacy interrupts\n");
 adapter->msix_entries[0].vector = pdev->irq;
 return err;
}

static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
{
 int num_msix, err = 0;

 if (adapter->flags & QLCNIC_TSS_RSS) {
  err = qlcnic_setup_tss_rss_intr(adapter);
  if (err < 0)
   return err;
  num_msix = adapter->ahw->num_msix;
 } else {
  num_msix = qlcnic_82xx_calculate_msix_vector(adapter);

  err = qlcnic_enable_msix(adapter, num_msix);
  if (err == -ENOMEM)
   return err;

  if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
   qlcnic_disable_multi_tx(adapter);
   adapter->drv_sds_rings = QLCNIC_SINGLE_RING;

   err = qlcnic_enable_msi_legacy(adapter);
   if (err)
    return err;
  }
 }

 return 0;
}

int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
{
 struct qlcnic_hardware_context *ahw = adapter->ahw;
 int err, i;

 if (qlcnic_check_multi_tx(adapter) &&
     !ahw->diag_test &&
     (adapter->flags & QLCNIC_MSIX_ENABLED)) {
  ahw->intr_tbl =
   vzalloc(array_size(sizeof(struct qlcnic_intrpt_config),
        ahw->num_msix));
  if (!ahw->intr_tbl)
   return -ENOMEM;

  for (i = 0; i < ahw->num_msix; i++) {
   ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
   ahw->intr_tbl[i].id = i;
   ahw->intr_tbl[i].src = 0;
  }

  err = qlcnic_82xx_config_intrpt(adapter, 1);
  if (err)
   dev_err(&adapter->pdev->dev,
    "Failed to configure Interrupt for %d vector\n",
    ahw->num_msix);
  return err;
 }

 return 0;
}

void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
{
 if (adapter->flags & QLCNIC_MSIX_ENABLED)
  pci_disable_msix(adapter->pdev);
 if (adapter->flags & QLCNIC_MSI_ENABLED)
  pci_disable_msi(adapter->pdev);

 kfree(adapter->msix_entries);
 adapter->msix_entries = NULL;

 if (adapter->ahw->intr_tbl) {
  vfree(adapter->ahw->intr_tbl);
  adapter->ahw->intr_tbl = NULL;
 }
}

static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
{
 if (ahw->pci_base0 != NULL)
  iounmap(ahw->pci_base0);
}

static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
{
 struct qlcnic_hardware_context *ahw = adapter->ahw;
 struct qlcnic_pci_info *pci_info;
 int ret;

 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
  switch (ahw->port_type) {
  case QLCNIC_GBE:
   ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
   break;
  case QLCNIC_XGBE:
   ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
   break;
  }
  return 0;
 }

 if (ahw->op_mode == QLCNIC_MGMT_FUNC)
  return 0;

 pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 if (!pci_info)
  return -ENOMEM;

 ret = qlcnic_get_pci_info(adapter, pci_info);
 kfree(pci_info);
 return ret;
}

static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
{
 bool ret = false;

 if (qlcnic_84xx_check(adapter)) {
  ret = true;
 } else if (qlcnic_83xx_check(adapter)) {
  if (adapter->ahw->extra_capability[0] &
      QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
   ret = true;
  else
   ret = false;
 }

 return ret;
}

int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
{
 struct qlcnic_hardware_context *ahw = adapter->ahw;
 struct qlcnic_pci_info *pci_info;
 int i, id = 0, ret = 0, j = 0;
 u16 act_pci_func;
 u8 pfn;

 pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 if (!pci_info)
  return -ENOMEM;

 ret = qlcnic_get_pci_info(adapter, pci_info);
 if (ret)
  goto err_pci_info;

 act_pci_func = ahw->total_nic_func;

 adapter->npars = kcalloc(act_pci_func,
     sizeof(struct qlcnic_npar_info),
     GFP_KERNEL);
 if (!adapter->npars) {
  ret = -ENOMEM;
  goto err_pci_info;
 }

 adapter->eswitch = kcalloc(QLCNIC_NIU_MAX_XG_PORTS,
       sizeof(struct qlcnic_eswitch),
       GFP_KERNEL);
 if (!adapter->eswitch) {
  ret = -ENOMEM;
  goto err_npars;
 }

 for (i = 0; i < ahw->max_vnic_func; i++) {
  pfn = pci_info[i].id;

  if (pfn >= ahw->max_vnic_func) {
   ret = -EINVAL;
   dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
    __func__, pfn, ahw->max_vnic_func);
   goto err_eswitch;
  }

  if (!pci_info[i].active ||
      (pci_info[i].type != QLCNIC_TYPE_NIC))
   continue;

  if (qlcnic_port_eswitch_cfg_capability(adapter)) {
   if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
         &id))
    adapter->npars[j].eswitch_status = true;
   else
    continue;
  } else {
   adapter->npars[j].eswitch_status = true;
  }

  adapter->npars[j].pci_func = pfn;
  adapter->npars[j].active = (u8)pci_info[i].active;
  adapter->npars[j].type = (u8)pci_info[i].type;
  adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
  adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
  adapter->npars[j].max_bw = pci_info[i].tx_max_bw;

  memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
  j++;
 }

 /* Update eSwitch status for adapters without per port eSwitch
 * configuration capability
 */
 if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
  for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
   adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 }

 kfree(pci_info);
 return 0;

err_eswitch:
 kfree(adapter->eswitch);
 adapter->eswitch = NULL;
err_npars:
 kfree(adapter->npars);
 adapter->npars = NULL;
err_pci_info:
 kfree(pci_info);

 return ret;
}

static int
qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
{
 u8 id;
 int ret;
 u32 data = QLCNIC_MGMT_FUNC;
 struct qlcnic_hardware_context *ahw = adapter->ahw;

 ret = qlcnic_api_lock(adapter);
 if (ret)
  goto err_lock;

 id = ahw->pci_func;
 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
        QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
 QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
 qlcnic_api_unlock(adapter);
err_lock:
 return ret;
}

static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
       const struct pci_device_id *ent)
{
 u32 op_mode, priv_level;

 /* Determine FW API version */
 adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
          QLCNIC_FW_API);

 /* Find PCI function number */
 qlcnic_get_func_no(adapter);

 /* Determine function privilege level */
 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 if (op_mode == QLC_DEV_DRV_DEFAULT)
  priv_level = QLCNIC_MGMT_FUNC;
 else
  priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);

 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
  adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
  dev_info(&adapter->pdev->dev,
   "HAL Version: %d Non Privileged function\n",
    adapter->ahw->fw_hal_version);
  adapter->nic_ops = &qlcnic_vf_ops;
 } else
  adapter->nic_ops = &qlcnic_ops;
}

#define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
#define QLCNIC_83XX_BAR0_LENGTH 0x4000
static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
{
 switch (dev_id) {
 case PCI_DEVICE_ID_QLOGIC_QLE824X:
  *bar = QLCNIC_82XX_BAR0_LENGTH;
  break;
 case PCI_DEVICE_ID_QLOGIC_QLE834X:
 case PCI_DEVICE_ID_QLOGIC_QLE8830:
 case PCI_DEVICE_ID_QLOGIC_QLE844X:
 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
 case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
  *bar = QLCNIC_83XX_BAR0_LENGTH;
  break;
 default:
  *bar = 0;
 }
}

static int qlcnic_setup_pci_map(struct pci_dev *pdev,
    struct qlcnic_hardware_context *ahw)
{
 u32 offset;
 void __iomem *mem_ptr0 = NULL;
 unsigned long mem_len, pci_len0 = 0, bar0_len;

 /* remap phys address */
 mem_len = pci_resource_len(pdev, 0);

 qlcnic_get_bar_length(pdev->device, &bar0_len);
 if (mem_len >= bar0_len) {

  mem_ptr0 = pci_ioremap_bar(pdev, 0);
  if (mem_ptr0 == NULL) {
   dev_err(&pdev->dev, "failed to map PCI bar 0\n");
   return -EIO;
  }
  pci_len0 = mem_len;
 } else {
  return -EIO;
 }

 dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));

 ahw->pci_base0 = mem_ptr0;
 ahw->pci_len0 = pci_len0;
 offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
 qlcnic_get_ioaddr(ahw, offset);

 return 0;
}

static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
      int index)
{
 struct pci_dev *pdev = adapter->pdev;
 unsigned short subsystem_vendor;
 bool ret = true;

 subsystem_vendor = pdev->subsystem_vendor;

 if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
     pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
  if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
      qlcnic_boards[index].sub_device == pdev->subsystem_device)
   ret = true;
  else
   ret = false;
 }

 return ret;
}

static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
{
 struct pci_dev *pdev = adapter->pdev;
 int i, found = 0;

 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
  if (qlcnic_boards[i].vendor == pdev->vendor &&
      qlcnic_boards[i].device == pdev->device &&
      qlcnic_validate_subsystem_id(adapter, i)) {
   found = 1;
   break;
  }
 }

 if (!found)
  sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 else
  sprintf(name, "%pM: %s" , adapter->mac_addr,
   qlcnic_boards[i].short_name);
}

static void
qlcnic_check_options(struct qlcnic_adapter *adapter)
{
 int err;
 u32 fw_major, fw_minor, fw_build, prev_fw_version;
 struct pci_dev *pdev = adapter->pdev;
 struct qlcnic_hardware_context *ahw = adapter->ahw;
 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;

 prev_fw_version = adapter->fw_version;

 fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
 fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);

 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);

 err = qlcnic_get_board_info(adapter);
 if (err) {
  dev_err(&pdev->dev, "Error getting board config info.\n");
  return;
 }
 if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
  if (fw_dump->tmpl_hdr == NULL ||
    adapter->fw_version > prev_fw_version) {
   vfree(fw_dump->tmpl_hdr);
   if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
    dev_info(&pdev->dev,
     "Supports FW dump capability\n");
  }
 }

 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
   QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);

 if (adapter->ahw->port_type == QLCNIC_XGBE) {
  if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
   adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
   adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
  } else {
   adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
   adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
  }

  adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
  adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;

 } else if (adapter->ahw->port_type == QLCNIC_GBE) {
  adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
  adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
  adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
  adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
 }

 adapter->ahw->msix_supported = !!qlcnic_use_msi_x;

 adapter->num_txd = MAX_CMD_DESCRIPTORS;

 adapter->max_rds_rings = MAX_RDS_RINGS;
}

static int
qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
{
 struct qlcnic_info nic_info;
 int err = 0;

 memset(&nic_info, 0, sizeof(struct qlcnic_info));
 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
 if (err)
  return err;

 adapter->ahw->physical_port = (u8)nic_info.phys_port;
 adapter->ahw->switch_mode = nic_info.switch_mode;
 adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
 adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
 adapter->ahw->capabilities = nic_info.capabilities;

 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
  u32 temp;
  temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
  if (err == -EIO)
   return err;
  adapter->ahw->extra_capability[0] = temp;
 } else {
  adapter->ahw->extra_capability[0] = 0;
 }

 adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
 adapter->ahw->max_mtu = nic_info.max_mtu;

 if (adapter->ahw->capabilities & BIT_6) {
  adapter->flags |= QLCNIC_ESWITCH_ENABLED;
  adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
  adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
  adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;

  dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
 } else {
  adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
  adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
  adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
  adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 }

 return err;
}

void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
       struct qlcnic_esw_func_cfg *esw_cfg)
{
 if (esw_cfg->discard_tagged)
  adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
 else
  adapter->flags |= QLCNIC_TAGGING_ENABLED;

 if (esw_cfg->vlan_id) {
  adapter->rx_pvid = esw_cfg->vlan_id;
  adapter->tx_pvid = esw_cfg->vlan_id;
 } else {
  adapter->rx_pvid = 0;
  adapter->tx_pvid = 0;
 }
}

static int
qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
{
 struct qlcnic_adapter *adapter = netdev_priv(netdev);
 int err;

 if (qlcnic_sriov_vf_check(adapter)) {
  err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
  if (err) {
   netdev_err(netdev,
       "Cannot add VLAN filter for VLAN id %d, err=%d",
       vid, err);
   return err;
  }
 }

 set_bit(vid, adapter->vlans);
 return 0;
}

static int
qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
{
 struct qlcnic_adapter *adapter = netdev_priv(netdev);
 int err;

 if (qlcnic_sriov_vf_check(adapter)) {
  err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
  if (err) {
   netdev_err(netdev,
       "Cannot delete VLAN filter for VLAN id %d, err=%d",
       vid, err);
   return err;
  }
 }

 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
 clear_bit(vid, adapter->vlans);
 return 0;
}

void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
          struct qlcnic_esw_func_cfg *esw_cfg)
{
 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
    QLCNIC_PROMISC_DISABLED);

 if (esw_cfg->mac_anti_spoof)
  adapter->flags |= QLCNIC_MACSPOOF;

 if (!esw_cfg->mac_override)
  adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;

 if (!esw_cfg->promisc_mode)
  adapter->flags |= QLCNIC_PROMISC_DISABLED;
}

int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
{
 struct qlcnic_esw_func_cfg esw_cfg;

 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
  return 0;

 esw_cfg.pci_func = adapter->ahw->pci_func;
 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
   return -EIO;
 qlcnic_set_vlan_config(adapter, &esw_cfg);
 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
 qlcnic_set_netdev_features(adapter, &esw_cfg);

 return 0;
}

void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
    struct qlcnic_esw_func_cfg *esw_cfg)
{
 struct net_device *netdev = adapter->netdev;

 if (qlcnic_83xx_check(adapter))
  return;

 adapter->offload_flags = esw_cfg->offload_flags;
 adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
 netdev_update_features(netdev);
 adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
}

static int
qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
{
 u32 op_mode, priv_level;
 int err = 0;

 err = qlcnic_initialize_nic(adapter);
 if (err)
  return err;

 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
  return 0;

 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);

 if (op_mode == QLC_DEV_DRV_DEFAULT)
  priv_level = QLCNIC_MGMT_FUNC;
 else
  priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);

 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
  if (priv_level == QLCNIC_MGMT_FUNC) {
   adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
   err = qlcnic_init_pci_info(adapter);
   if (err)
    return err;
   /* Set privilege level for other functions */
   qlcnic_set_function_modes(adapter);
   dev_info(&adapter->pdev->dev,
    "HAL Version: %d, Management function\n",
     adapter->ahw->fw_hal_version);
  } else if (priv_level == QLCNIC_PRIV_FUNC) {
   adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
   dev_info(&adapter->pdev->dev,
    "HAL Version: %d, Privileged function\n",
     adapter->ahw->fw_hal_version);
  }
 } else {
  adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
 }

 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;

 return err;
}

int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
{
 struct qlcnic_esw_func_cfg esw_cfg;
 struct qlcnic_npar_info *npar;
 u8 i;

 if (adapter->need_fw_reset)
  return 0;

 for (i = 0; i < adapter->ahw->total_nic_func; i++) {
  if (!adapter->npars[i].eswitch_status)
   continue;

  memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
  esw_cfg.pci_func = adapter->npars[i].pci_func;
  esw_cfg.mac_override = BIT_0;
  esw_cfg.promisc_mode = BIT_0;
  if (qlcnic_82xx_check(adapter)) {
   esw_cfg.offload_flags = BIT_0;
   if (QLCNIC_IS_TSO_CAPABLE(adapter))
    esw_cfg.offload_flags |= (BIT_1 | BIT_2);
  }
  if (qlcnic_config_switch_port(adapter, &esw_cfg))
   return -EIO;
  npar = &adapter->npars[i];
  npar->pvid = esw_cfg.vlan_id;
  npar->mac_override = esw_cfg.mac_override;
  npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
  npar->discard_tagged = esw_cfg.discard_tagged;
  npar->promisc_mode = esw_cfg.promisc_mode;
  npar->offload_flags = esw_cfg.offload_flags;
 }

 return 0;
}


static int
qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
   struct qlcnic_npar_info *npar, int pci_func)
{
 struct qlcnic_esw_func_cfg esw_cfg;
 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
 esw_cfg.pci_func = pci_func;
 esw_cfg.vlan_id = npar->pvid;
 esw_cfg.mac_override = npar->mac_override;
 esw_cfg.discard_tagged = npar->discard_tagged;
 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
 esw_cfg.offload_flags = npar->offload_flags;
 esw_cfg.promisc_mode = npar->promisc_mode;
 if (qlcnic_config_switch_port(adapter, &esw_cfg))
  return -EIO;

 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
 if (qlcnic_config_switch_port(adapter, &esw_cfg))
  return -EIO;

 return 0;
}

int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
{
 int i, err;
 struct qlcnic_npar_info *npar;
 struct qlcnic_info nic_info;
 u8 pci_func;

 if (qlcnic_82xx_check(adapter))
  if (!adapter->need_fw_reset)
   return 0;

 /* Set the NPAR config data after FW reset */
 for (i = 0; i < adapter->ahw->total_nic_func; i++) {
  npar = &adapter->npars[i];
  pci_func = npar->pci_func;
  if (!adapter->npars[i].eswitch_status)
   continue;

  memset(&nic_info, 0, sizeof(struct qlcnic_info));
  err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
  if (err)
   return err;
  nic_info.min_tx_bw = npar->min_bw;
  nic_info.max_tx_bw = npar->max_bw;
  err = qlcnic_set_nic_info(adapter, &nic_info);
  if (err)
   return err;

  if (npar->enable_pm) {
   err = qlcnic_config_port_mirroring(adapter,
          npar->dest_npar, 1,
          pci_func);
   if (err)
    return err;
  }
  err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
  if (err)
   return err;
 }
 return 0;
}

static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
{
 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
 u32 npar_state;

 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
  return 0;

 npar_state = QLC_SHARED_REG_RD32(adapter,
      QLCNIC_CRB_DEV_NPAR_STATE);
 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
  msleep(1000);
  npar_state = QLC_SHARED_REG_RD32(adapter,
       QLCNIC_CRB_DEV_NPAR_STATE);
 }
 if (!npar_opt_timeo) {
  dev_err(&adapter->pdev->dev,
   "Waiting for NPAR state to operational timeout\n");
  return -EIO;
 }
 return 0;
}

static int
qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
{
 int err;

 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
     adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
  return 0;

 err = qlcnic_set_default_offload_settings(adapter);
 if (err)
  return err;

 err = qlcnic_reset_npar_config(adapter);
 if (err)
  return err;

 qlcnic_dev_set_npar_ready(adapter);

 return err;
}

static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
{
 int err;

 err = qlcnic_can_start_firmware(adapter);
 if (err < 0)
  return err;
 else if (!err)
  goto check_fw_status;

 if (qlcnic_load_fw_file)
  qlcnic_request_firmware(adapter);
 else {
  err = qlcnic_check_flash_fw_ver(adapter);
  if (err)
   goto err_out;

  adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
 }

 err = qlcnic_need_fw_reset(adapter);
 if (err == 0)
  goto check_fw_status;

 err = qlcnic_pinit_from_rom(adapter);
 if (err)
  goto err_out;

 err = qlcnic_load_firmware(adapter);
 if (err)
  goto err_out;

 qlcnic_release_firmware(adapter);
 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);

check_fw_status:
 err = qlcnic_check_fw_status(adapter);
 if (err)
  goto err_out;

 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
 qlcnic_idc_debug_info(adapter, 1);
 err = qlcnic_check_eswitch_mode(adapter);
 if (err) {
  dev_err(&adapter->pdev->dev,
   "Memory allocation failed for eswitch\n");
  goto err_out;
 }
 err = qlcnic_set_mgmt_operations(adapter);
 if (err)
  goto err_out;

 qlcnic_check_options(adapter);
 adapter->need_fw_reset = 0;

 qlcnic_release_firmware(adapter);
 return 0;

err_out:
 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
 dev_err(&adapter->pdev->dev, "Device state set to failed\n");

 qlcnic_release_firmware(adapter);
 return err;
}

static int
qlcnic_request_irq(struct qlcnic_adapter *adapter)
{
 irq_handler_t handler;
 struct qlcnic_host_sds_ring *sds_ring;
 struct qlcnic_host_tx_ring *tx_ring;
 int err, ring, num_sds_rings;

 unsigned long flags = 0;
 struct net_device *netdev = adapter->netdev;
 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;

 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
  if (qlcnic_82xx_check(adapter))
   handler = qlcnic_tmp_intr;
  else
   handler = qlcnic_83xx_tmp_intr;
  if (!QLCNIC_IS_MSI_FAMILY(adapter))
   flags |= IRQF_SHARED;

 } else {
  if (adapter->flags & QLCNIC_MSIX_ENABLED)
   handler = qlcnic_msix_intr;
  else if (adapter->flags & QLCNIC_MSI_ENABLED)
   handler = qlcnic_msi_intr;
  else {
   flags |= IRQF_SHARED;
   if (qlcnic_82xx_check(adapter))
    handler = qlcnic_intr;
   else
    handler = qlcnic_83xx_intr;
  }
 }
 adapter->irq = netdev->irq;

 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
  if (qlcnic_82xx_check(adapter) ||
      (qlcnic_83xx_check(adapter) &&
       (adapter->flags & QLCNIC_MSIX_ENABLED))) {
   num_sds_rings = adapter->drv_sds_rings;
   for (ring = 0; ring < num_sds_rings; ring++) {
    sds_ring = &recv_ctx->sds_rings[ring];
    if (qlcnic_82xx_check(adapter) &&
        !qlcnic_check_multi_tx(adapter) &&
        (ring == (num_sds_rings - 1))) {
     if (!(adapter->flags &
           QLCNIC_MSIX_ENABLED))
      snprintf(sds_ring->name,
        sizeof(sds_ring->name),
        "qlcnic");
     else
      snprintf(sds_ring->name,
        sizeof(sds_ring->name),
        "%s-tx-0-rx-%d",
        netdev->name, ring);
    } else {
     snprintf(sds_ring->name,
       sizeof(sds_ring->name),
       "%s-rx-%d",
       netdev->name, ring);
    }
    err = request_irq(sds_ring->irq, handler, flags,
        sds_ring->name, sds_ring);
    if (err)
     return err;
   }
  }
  if ((qlcnic_82xx_check(adapter) &&
       qlcnic_check_multi_tx(adapter)) ||
      (qlcnic_83xx_check(adapter) &&
       (adapter->flags & QLCNIC_MSIX_ENABLED) &&
       !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
   handler = qlcnic_msix_tx_intr;
   for (ring = 0; ring < adapter->drv_tx_rings;
        ring++) {
    tx_ring = &adapter->tx_ring[ring];
    snprintf(tx_ring->name, sizeof(tx_ring->name),
      "%s-tx-%d", netdev->name, ring);
    err = request_irq(tx_ring->irq, handler, flags,
        tx_ring->name, tx_ring);
    if (err)
     return err;
   }
  }
 }
 return 0;
}

static void
qlcnic_free_irq(struct qlcnic_adapter *adapter)
{
 int ring;
 struct qlcnic_host_sds_ring *sds_ring;
 struct qlcnic_host_tx_ring *tx_ring;

 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;

 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
  if (qlcnic_82xx_check(adapter) ||
      (qlcnic_83xx_check(adapter) &&
       (adapter->flags & QLCNIC_MSIX_ENABLED))) {
   for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
    sds_ring = &recv_ctx->sds_rings[ring];
    free_irq(sds_ring->irq, sds_ring);
   }
  }
  if ((qlcnic_83xx_check(adapter) &&
       !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
      (qlcnic_82xx_check(adapter) &&
       qlcnic_check_multi_tx(adapter))) {
   for (ring = 0; ring < adapter->drv_tx_rings;
        ring++) {
    tx_ring = &adapter->tx_ring[ring];
    if (tx_ring->irq)
     free_irq(tx_ring->irq, tx_ring);
   }
  }
 }
}

static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
{
 u32 capab = 0;

 if (qlcnic_82xx_check(adapter)) {
  if (adapter->ahw->extra_capability[0] &
      QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
   adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
 } else {
  capab = adapter->ahw->capabilities;
  if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
   adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
 }
}

static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
{
 struct qlcnic_hardware_context *ahw = adapter->ahw;
 int err;

 /* Initialize interrupt coalesce parameters */
 ahw->coal.flag = QLCNIC_INTR_DEFAULT;

 if (qlcnic_83xx_check(adapter)) {
  ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
  ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
  ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
  ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
  ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;

  err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
 } else {
  ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
  ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
  ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;

  err = qlcnic_82xx_set_rx_coalesce(adapter);
 }

 return err;
}

int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
{
 int ring;
 struct qlcnic_host_rds_ring *rds_ring;

 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
  return -EIO;

 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
  return 0;

 if (qlcnic_set_eswitch_port_config(adapter))
  return -EIO;

 qlcnic_get_lro_mss_capability(adapter);

 if (qlcnic_fw_create_ctx(adapter))
  return -EIO;

 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
  rds_ring = &adapter->recv_ctx->rds_rings[ring];
  qlcnic_post_rx_buffers(adapter, rds_ring, ring);
 }

 qlcnic_set_multi(netdev);
 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);

 adapter->ahw->linkup = 0;

 if (adapter->drv_sds_rings > 1)
  qlcnic_config_rss(adapter, 1);

 qlcnic_config_def_intr_coalesce(adapter);

 if (netdev->features & NETIF_F_LRO)
  qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);

 set_bit(__QLCNIC_DEV_UP, &adapter->state);
 qlcnic_napi_enable(adapter);

 qlcnic_linkevent_request(adapter, 1);

 adapter->ahw->reset_context = 0;
 netif_tx_start_all_queues(netdev);
 return 0;
}

int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
{
 int err = 0;

 rtnl_lock();
 if (netif_running(netdev))
  err = __qlcnic_up(adapter, netdev);
 rtnl_unlock();

 return err;
}

void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
{
 int ring;

 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
  return;

 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
  return;

 smp_mb();
 netif_carrier_off(netdev);
 adapter->ahw->linkup = 0;
 netif_tx_disable(netdev);

 qlcnic_free_mac_list(adapter);

 if (adapter->fhash.fnum)
  qlcnic_delete_lb_filters(adapter);

 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
 if (qlcnic_sriov_vf_check(adapter))
  qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);

 qlcnic_napi_disable(adapter);

 qlcnic_fw_destroy_ctx(adapter);
 adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;

 qlcnic_reset_rx_buffers_list(adapter);

 for (ring = 0; ring < adapter->drv_tx_rings; ring++)
  qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
}

/* Usage: During suspend and firmware recovery module */

void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
{
 rtnl_lock();
 if (netif_running(netdev))
  __qlcnic_down(adapter, netdev);
 rtnl_unlock();

}

int
qlcnic_attach(struct qlcnic_adapter *adapter)
{
 struct net_device *netdev = adapter->netdev;
 struct pci_dev *pdev = adapter->pdev;
 int err;

 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
  return 0;

 err = qlcnic_napi_add(adapter, netdev);
 if (err)
  return err;

 err = qlcnic_alloc_sw_resources(adapter);
 if (err) {
  dev_err(&pdev->dev, "Error in setting sw resources\n");
  goto err_out_napi_del;
 }

 err = qlcnic_alloc_hw_resources(adapter);
 if (err) {
  dev_err(&pdev->dev, "Error in setting hw resources\n");
  goto err_out_free_sw;
 }

 err = qlcnic_request_irq(adapter);
 if (err) {
  dev_err(&pdev->dev, "failed to setup interrupt\n");
  goto err_out_free_hw;
 }

 qlcnic_create_sysfs_entries(adapter);

 if (qlcnic_encap_rx_offload(adapter))
  udp_tunnel_nic_reset_ntf(netdev);

 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
 return 0;

err_out_free_hw:
 qlcnic_free_hw_resources(adapter);
err_out_free_sw:
 qlcnic_free_sw_resources(adapter);
err_out_napi_del:
 qlcnic_napi_del(adapter);
 return err;
}

void qlcnic_detach(struct qlcnic_adapter *adapter)
{
 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
  return;

 qlcnic_remove_sysfs_entries(adapter);

 qlcnic_free_hw_resources(adapter);
 qlcnic_release_rx_buffers(adapter);
 qlcnic_free_irq(adapter);
 qlcnic_napi_del(adapter);
 qlcnic_free_sw_resources(adapter);

 adapter->is_up = 0;
}

void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
{
 struct qlcnic_adapter *adapter = netdev_priv(netdev);
 struct qlcnic_host_sds_ring *sds_ring;
 int drv_tx_rings = adapter->drv_tx_rings;
 int ring;

 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
  for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
   sds_ring = &adapter->recv_ctx->sds_rings[ring];
   qlcnic_disable_sds_intr(adapter, sds_ring);
  }
 }

 qlcnic_fw_destroy_ctx(adapter);

 qlcnic_detach(adapter);

 adapter->ahw->diag_test = 0;
 adapter->drv_sds_rings = drv_sds_rings;
 adapter->drv_tx_rings = drv_tx_rings;

 if (qlcnic_attach(adapter))
  goto out;

 if (netif_running(netdev))
  __qlcnic_up(adapter, netdev);
out:
 netif_device_attach(netdev);
}

static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
{
 struct qlcnic_hardware_context *ahw = adapter->ahw;
 int err = 0;

 adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
    GFP_KERNEL);
 if (!adapter->recv_ctx) {
  err = -ENOMEM;
  goto err_out;
 }

 if (qlcnic_83xx_check(adapter)) {
  ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
  ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
  ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
  ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
  ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
 } else {
  ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
  ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
  ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
 }

 /* clear stats */
 memset(&adapter->stats, 0, sizeof(adapter->stats));
err_out:
 return err;
}

static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
{
 struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;

 kfree(adapter->recv_ctx);
 adapter->recv_ctx = NULL;

 if (fw_dump->tmpl_hdr) {
  vfree(fw_dump->tmpl_hdr);
  fw_dump->tmpl_hdr = NULL;
 }

 if (fw_dump->dma_buffer) {
  dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
      fw_dump->dma_buffer, fw_dump->phys_addr);
  fw_dump->dma_buffer = NULL;
 }

 kfree(adapter->ahw->reset.buff);
 adapter->ahw->fw_dump.tmpl_hdr = NULL;
}

int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
{
 struct qlcnic_adapter *adapter = netdev_priv(netdev);
 struct qlcnic_host_sds_ring *sds_ring;
 struct qlcnic_host_rds_ring *rds_ring;
 int ring;
 int ret;

 netif_device_detach(netdev);

 if (netif_running(netdev))
  __qlcnic_down(adapter, netdev);

 qlcnic_detach(adapter);

 adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 adapter->ahw->diag_test = test;
 adapter->ahw->linkup = 0;

 ret = qlcnic_attach(adapter);
 if (ret) {
  netif_device_attach(netdev);
  return ret;
 }

 ret = qlcnic_fw_create_ctx(adapter);
 if (ret) {
  qlcnic_detach(adapter);
  netif_device_attach(netdev);
  return ret;
 }

 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
  rds_ring = &adapter->recv_ctx->rds_rings[ring];
  qlcnic_post_rx_buffers(adapter, rds_ring, ring);
 }

 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
  for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
   sds_ring = &adapter->recv_ctx->sds_rings[ring];
   qlcnic_enable_sds_intr(adapter, sds_ring);
  }
 }

 if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
  adapter->ahw->loopback_state = 0;
  qlcnic_linkevent_request(adapter, 1);
 }

 set_bit(__QLCNIC_DEV_UP, &adapter->state);

 return 0;
}

/* Reset context in hardware only */
static int
qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
{
 struct net_device *netdev = adapter->netdev;

 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
  return -EBUSY;

 netif_device_detach(netdev);

 qlcnic_down(adapter, netdev);

 qlcnic_up(adapter, netdev);

 netif_device_attach(netdev);

 clear_bit(__QLCNIC_RESETTING, &adapter->state);
 netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
 return 0;
}

int
qlcnic_reset_context(struct qlcnic_adapter *adapter)
{
 int err = 0;
 struct net_device *netdev = adapter->netdev;

 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
  return -EBUSY;

 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {

  netif_device_detach(netdev);

  if (netif_running(netdev))
   __qlcnic_down(adapter, netdev);

  qlcnic_detach(adapter);

  if (netif_running(netdev)) {
   err = qlcnic_attach(adapter);
   if (!err) {
    __qlcnic_up(adapter, netdev);
    qlcnic_restore_indev_addr(netdev, NETDEV_UP);
   }
  }

  netif_device_attach(netdev);
 }

 clear_bit(__QLCNIC_RESETTING, &adapter->state);
 return err;
}

static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
{
 struct qlcnic_hardware_context *ahw = adapter->ahw;
 u16 act_pci_fn = ahw->total_nic_func;
 u16 count;

 ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
 if (act_pci_fn <= 2)
  count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
    act_pci_fn;
 else
  count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
    act_pci_fn;
 ahw->max_uc_count = count;
}

static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
          u8 tx_queues, u8 rx_queues)
{
 struct net_device *netdev = adapter->netdev;
 int err = 0;

 if (tx_queues) {
  err = netif_set_real_num_tx_queues(netdev, tx_queues);
  if (err) {
   netdev_err(netdev, "failed to set %d Tx queues\n",
       tx_queues);
   return err;
  }
 }

 if (rx_queues) {
  err = netif_set_real_num_rx_queues(netdev, rx_queues);
  if (err)
   netdev_err(netdev, "failed to set %d Rx queues\n",
       rx_queues);
 }

 return err;
}

int
qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev)
{
 int err;
 struct pci_dev *pdev = adapter->pdev;

 adapter->rx_csum = 1;
 adapter->ahw->mc_enabled = 0;
 qlcnic_set_mac_filter_count(adapter);

 netdev->netdev_ops    = &qlcnic_netdev_ops;
 netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;

 qlcnic_change_mtu(netdev, netdev->mtu);

 netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
  &qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;

 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
        NETIF_F_IPV6_CSUM | NETIF_F_GRO |
        NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HIGHDMA);
 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
      NETIF_F_IPV6_CSUM | NETIF_F_HIGHDMA);

 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
  netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
  netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
 }

 if (qlcnic_vlan_tx_check(adapter))
  netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);

 if (qlcnic_sriov_vf_check(adapter))
  netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;

 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
  netdev->features |= NETIF_F_LRO;

 if (qlcnic_encap_tx_offload(adapter)) {
  netdev->features |= NETIF_F_GSO_UDP_TUNNEL;

  /* encapsulation Tx offload supported by Adapter */
  netdev->hw_enc_features = NETIF_F_IP_CSUM        |
       NETIF_F_GSO_UDP_TUNNEL |
       NETIF_F_TSO            |
       NETIF_F_TSO6;
 }

 if (qlcnic_encap_rx_offload(adapter)) {
  netdev->hw_enc_features |= NETIF_F_RXCSUM;

  netdev->udp_tunnel_nic_info = &qlcnic_udp_tunnels;
 }

 netdev->hw_features = netdev->features;
 netdev->priv_flags |= IFF_UNICAST_FLT;
 netdev->irq = adapter->msix_entries[0].vector;

 /* MTU range: 68 - 9600 */
 netdev->min_mtu = P3P_MIN_MTU;
 netdev->max_mtu = P3P_MAX_MTU;

 err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
      adapter->drv_sds_rings);
 if (err)
  return err;

 qlcnic_dcb_init_dcbnl_ops(adapter->dcb);

 err = register_netdev(netdev);
 if (err) {
  dev_err(&pdev->dev, "failed to register net device\n");
  return err;
 }

 return 0;
}

void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
{
 int ring;
 struct qlcnic_host_tx_ring *tx_ring;

 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
  tx_ring = &adapter->tx_ring[ring];
  if (tx_ring) {
   vfree(tx_ring->cmd_buf_arr);
   tx_ring->cmd_buf_arr = NULL;
  }
 }
 kfree(adapter->tx_ring);
}

int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
     struct net_device *netdev)
{
 int ring, vector, index;
 struct qlcnic_host_tx_ring *tx_ring;
 struct qlcnic_cmd_buffer *cmd_buf_arr;

 tx_ring = kcalloc(adapter->drv_tx_rings,
     sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
 if (tx_ring == NULL)
  return -ENOMEM;

 adapter->tx_ring = tx_ring;

 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
  tx_ring = &adapter->tx_ring[ring];
  tx_ring->num_desc = adapter->num_txd;
  tx_ring->txq = netdev_get_tx_queue(netdev, ring);
  cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
  if (cmd_buf_arr == NULL) {
   qlcnic_free_tx_rings(adapter);
   return -ENOMEM;
  }
  tx_ring->cmd_buf_arr = cmd_buf_arr;
  spin_lock_init(&tx_ring->tx_clean_lock);
 }

 if (qlcnic_83xx_check(adapter) ||
     (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
  for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
   tx_ring = &adapter->tx_ring[ring];
   tx_ring->adapter = adapter;
   if (adapter->flags & QLCNIC_MSIX_ENABLED) {
    index = adapter->drv_sds_rings + ring;
    vector = adapter->msix_entries[index].vector;
    tx_ring->irq = vector;
   }
  }
 }

 return 0;
}

void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
{
 struct qlcnic_hardware_context *ahw = adapter->ahw;
 u32 fw_cmd = 0;

 if (qlcnic_82xx_check(adapter))
  fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
 else if (qlcnic_83xx_check(adapter))
  fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;

 if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
  qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
}

/* Reset firmware API lock */
static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
{
 qlcnic_api_lock(adapter);
 qlcnic_api_unlock(adapter);
}


static int
qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
 struct net_device *netdev = NULL;
 struct qlcnic_adapter *adapter = NULL;
 struct qlcnic_hardware_context *ahw;
 char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
 int err;

 err = pci_enable_device(pdev);
 if (err)
  return err;

 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
  err = -ENODEV;
  goto err_out_disable_pdev;
 }

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