dpdk-rte-kni-dkms 17.11.1-6 / usr / src / dpdk-rte-kni-17.11.1 / ethtool / ixgbe / kcompat.h

/*******************************************************************************

  Intel 10 Gigabit PCI Express Linux driver
  Copyright(c) 1999 - 2012 Intel Corporation.

  This program is free software; you can redistribute it and/or modify it
  under the terms and conditions of the GNU General Public License,
  version 2, as published by the Free Software Foundation.

  This program is distributed in the hope it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  more details.

  You should have received a copy of the GNU General Public License along with
  this program; if not, write to the Free Software Foundation, Inc.,
  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

  The full GNU General Public License is included in this distribution in
  the file called "LICENSE.GPL".

  Contact Information:
  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

*******************************************************************************/

#ifndef _KCOMPAT_H_
#define _KCOMPAT_H_

#ifndef LINUX_VERSION_CODE
#include <linux/version.h>
#else
#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
#endif
#include <linux/init.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/ioport.h>
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/udp.h>
#include <linux/mii.h>
#include <linux/vmalloc.h>
#include <asm/io.h>
#include <linux/ethtool.h>
#include <linux/if_vlan.h>

/* NAPI enable/disable flags here */
/* enable NAPI for ixgbe by default */
#undef CONFIG_IXGBE_NAPI
#define CONFIG_IXGBE_NAPI
#define NAPI
#ifdef CONFIG_IXGBE_NAPI
#undef NAPI
#define NAPI
#endif /* CONFIG_IXGBE_NAPI */
#ifdef IXGBE_NAPI
#undef NAPI
#define NAPI
#endif /* IXGBE_NAPI */
#ifdef IXGBE_NO_NAPI
#undef NAPI
#endif /* IXGBE_NO_NAPI */

#define adapter_struct ixgbe_adapter
#define adapter_q_vector ixgbe_q_vector

/* and finally set defines so that the code sees the changes */
#ifdef NAPI
#ifndef CONFIG_IXGBE_NAPI
#define CONFIG_IXGBE_NAPI
#endif
#else
#undef CONFIG_IXGBE_NAPI
#endif /* NAPI */

/* packet split disable/enable */
#ifdef DISABLE_PACKET_SPLIT
#ifndef CONFIG_IXGBE_DISABLE_PACKET_SPLIT
#define CONFIG_IXGBE_DISABLE_PACKET_SPLIT
#endif
#endif /* DISABLE_PACKET_SPLIT */

/* MSI compatibility code for all kernels and drivers */
#ifdef DISABLE_PCI_MSI
#undef CONFIG_PCI_MSI
#endif
#ifndef CONFIG_PCI_MSI
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,8) )
struct msix_entry {
	u16 vector; /* kernel uses to write allocated vector */
	u16 entry;  /* driver uses to specify entry, OS writes */
};
#endif
#undef pci_enable_msi
#define pci_enable_msi(a) -ENOTSUPP
#undef pci_disable_msi
#define pci_disable_msi(a) do {} while (0)
#undef pci_enable_msix
#define pci_enable_msix(a, b, c) -ENOTSUPP
#undef pci_disable_msix
#define pci_disable_msix(a) do {} while (0)
#define msi_remove_pci_irq_vectors(a) do {} while (0)
#endif /* CONFIG_PCI_MSI */
#ifdef DISABLE_PM
#undef CONFIG_PM
#endif

#ifdef DISABLE_NET_POLL_CONTROLLER
#undef CONFIG_NET_POLL_CONTROLLER
#endif

#ifndef PMSG_SUSPEND
#define PMSG_SUSPEND 3
#endif

/* generic boolean compatibility */
#undef TRUE
#undef FALSE
#define TRUE true
#define FALSE false
#ifdef GCC_VERSION
#if ( GCC_VERSION < 3000 )
#define _Bool char
#endif
#else
#define _Bool char
#endif

/* kernels less than 2.4.14 don't have this */
#ifndef ETH_P_8021Q
#define ETH_P_8021Q 0x8100
#endif

#ifndef module_param
#define module_param(v,t,p) MODULE_PARM(v, "i");
#endif

#ifndef DMA_64BIT_MASK
#define DMA_64BIT_MASK  0xffffffffffffffffULL
#endif

#ifndef DMA_32BIT_MASK
#define DMA_32BIT_MASK  0x00000000ffffffffULL
#endif

#ifndef PCI_CAP_ID_EXP
#define PCI_CAP_ID_EXP 0x10
#endif

#ifndef PCIE_LINK_STATE_L0S
#define PCIE_LINK_STATE_L0S 1
#endif
#ifndef PCIE_LINK_STATE_L1
#define PCIE_LINK_STATE_L1 2
#endif

#ifndef mmiowb
#ifdef CONFIG_IA64
#define mmiowb() asm volatile ("mf.a" ::: "memory")
#else
#define mmiowb()
#endif
#endif

#ifndef SET_NETDEV_DEV
#define SET_NETDEV_DEV(net, pdev)
#endif

#if !defined(HAVE_FREE_NETDEV) && ( LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0) )
#define free_netdev(x)	kfree(x)
#endif

#ifdef HAVE_POLL_CONTROLLER
#define CONFIG_NET_POLL_CONTROLLER
#endif

#ifndef SKB_DATAREF_SHIFT
/* if we do not have the infrastructure to detect if skb_header is cloned
   just return false in all cases */
#define skb_header_cloned(x) 0
#endif

#ifndef NETIF_F_GSO
#define gso_size tso_size
#define gso_segs tso_segs
#endif

#ifndef NETIF_F_GRO
#define vlan_gro_receive(_napi, _vlgrp, _vlan, _skb) \
		vlan_hwaccel_receive_skb(_skb, _vlgrp, _vlan)
#define napi_gro_receive(_napi, _skb) netif_receive_skb(_skb)
#endif

#ifndef NETIF_F_SCTP_CSUM
#define NETIF_F_SCTP_CSUM 0
#endif

#ifndef NETIF_F_LRO
#define NETIF_F_LRO (1 << 15)
#endif

#ifndef NETIF_F_NTUPLE
#define NETIF_F_NTUPLE (1 << 27)
#endif

#ifndef IPPROTO_SCTP
#define IPPROTO_SCTP 132
#endif

#ifndef CHECKSUM_PARTIAL
#define CHECKSUM_PARTIAL CHECKSUM_HW
#define CHECKSUM_COMPLETE CHECKSUM_HW
#endif

#ifndef __read_mostly
#define __read_mostly
#endif

#ifndef MII_RESV1
#define MII_RESV1		0x17		/* Reserved...		*/
#endif

#ifndef unlikely
#define unlikely(_x) _x
#define likely(_x) _x
#endif

#ifndef WARN_ON
#define WARN_ON(x)
#endif

#ifndef PCI_DEVICE
#define PCI_DEVICE(vend,dev) \
	.vendor = (vend), .device = (dev), \
	.subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID
#endif

#ifndef node_online
#define node_online(node) ((node) == 0)
#endif

#ifndef num_online_cpus
#define num_online_cpus() smp_num_cpus
#endif

#ifndef cpu_online
#define cpu_online(cpuid) test_bit((cpuid), &cpu_online_map)
#endif

#ifndef _LINUX_RANDOM_H
#include <linux/random.h>
#endif

#ifndef DECLARE_BITMAP
#ifndef BITS_TO_LONGS
#define BITS_TO_LONGS(bits) (((bits)+BITS_PER_LONG-1)/BITS_PER_LONG)
#endif
#define DECLARE_BITMAP(name,bits) long name[BITS_TO_LONGS(bits)]
#endif

#ifndef VLAN_HLEN
#define VLAN_HLEN 4
#endif

#ifndef VLAN_ETH_HLEN
#define VLAN_ETH_HLEN 18
#endif

#ifndef VLAN_ETH_FRAME_LEN
#define VLAN_ETH_FRAME_LEN 1518
#endif

#if !defined(IXGBE_DCA) && !defined(IGB_DCA)
#define dca_get_tag(b) 0
#define dca_add_requester(a) -1
#define dca_remove_requester(b) do { } while(0)
#define DCA_PROVIDER_ADD     0x0001
#define DCA_PROVIDER_REMOVE  0x0002
#endif

#ifndef DCA_GET_TAG_TWO_ARGS
#define dca3_get_tag(a,b) dca_get_tag(b)
#endif

#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
#if defined(__i386__) || defined(__x86_64__)
#define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
#endif
#endif

/* taken from 2.6.24 definition in linux/kernel.h */
#ifndef IS_ALIGNED
#define IS_ALIGNED(x,a)         (((x) % ((typeof(x))(a))) == 0)
#endif

#ifndef NETIF_F_HW_VLAN_TX
struct _kc_vlan_ethhdr {
	unsigned char	h_dest[ETH_ALEN];
	unsigned char	h_source[ETH_ALEN];
	__be16		h_vlan_proto;
	__be16		h_vlan_TCI;
	__be16		h_vlan_encapsulated_proto;
};
#define vlan_ethhdr _kc_vlan_ethhdr
struct _kc_vlan_hdr {
	__be16		h_vlan_TCI;
	__be16		h_vlan_encapsulated_proto;
};
#define vlan_hdr _kc_vlan_hdr
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0) )
#define vlan_tx_tag_present(_skb) 0
#define vlan_tx_tag_get(_skb) 0
#endif
#endif

#ifndef VLAN_PRIO_SHIFT
#define VLAN_PRIO_SHIFT 13
#endif


#ifndef __GFP_COLD
#define __GFP_COLD 0
#endif

/*****************************************************************************/
/* Installations with ethtool version without eeprom, adapter id, or statistics
 * support */

#ifndef ETH_GSTRING_LEN
#define ETH_GSTRING_LEN 32
#endif

#ifndef ETHTOOL_GSTATS
#define ETHTOOL_GSTATS 0x1d
#undef ethtool_drvinfo
#define ethtool_drvinfo k_ethtool_drvinfo
struct k_ethtool_drvinfo {
	u32 cmd;
	char driver[32];
	char version[32];
	char fw_version[32];
	char bus_info[32];
	char reserved1[32];
	char reserved2[16];
	u32 n_stats;
	u32 testinfo_len;
	u32 eedump_len;
	u32 regdump_len;
};

struct ethtool_stats {
	u32 cmd;
	u32 n_stats;
	u64 data[0];
};
#endif /* ETHTOOL_GSTATS */

#ifndef ETHTOOL_PHYS_ID
#define ETHTOOL_PHYS_ID 0x1c
#endif /* ETHTOOL_PHYS_ID */

#ifndef ETHTOOL_GSTRINGS
#define ETHTOOL_GSTRINGS 0x1b
enum ethtool_stringset {
	ETH_SS_TEST             = 0,
	ETH_SS_STATS,
};
struct ethtool_gstrings {
	u32 cmd;            /* ETHTOOL_GSTRINGS */
	u32 string_set;     /* string set id e.c. ETH_SS_TEST, etc*/
	u32 len;            /* number of strings in the string set */
	u8 data[0];
};
#endif /* ETHTOOL_GSTRINGS */

#ifndef ETHTOOL_TEST
#define ETHTOOL_TEST 0x1a
enum ethtool_test_flags {
	ETH_TEST_FL_OFFLINE	= (1 << 0),
	ETH_TEST_FL_FAILED	= (1 << 1),
};
struct ethtool_test {
	u32 cmd;
	u32 flags;
	u32 reserved;
	u32 len;
	u64 data[0];
};
#endif /* ETHTOOL_TEST */

#ifndef ETHTOOL_GEEPROM
#define ETHTOOL_GEEPROM 0xb
#undef ETHTOOL_GREGS
struct ethtool_eeprom {
	u32 cmd;
	u32 magic;
	u32 offset;
	u32 len;
	u8 data[0];
};

struct ethtool_value {
	u32 cmd;
	u32 data;
};
#endif /* ETHTOOL_GEEPROM */

#ifndef ETHTOOL_GLINK
#define ETHTOOL_GLINK 0xa
#endif /* ETHTOOL_GLINK */

#ifndef ETHTOOL_GWOL
#define ETHTOOL_GWOL 0x5
#define ETHTOOL_SWOL 0x6
#define SOPASS_MAX      6
struct ethtool_wolinfo {
	u32 cmd;
	u32 supported;
	u32 wolopts;
	u8 sopass[SOPASS_MAX]; /* SecureOn(tm) password */
};
#endif /* ETHTOOL_GWOL */

#ifndef ETHTOOL_GREGS
#define ETHTOOL_GREGS		0x00000004 /* Get NIC registers */
#define ethtool_regs _kc_ethtool_regs
/* for passing big chunks of data */
struct _kc_ethtool_regs {
	u32 cmd;
	u32 version; /* driver-specific, indicates different chips/revs */
	u32 len; /* bytes */
	u8 data[0];
};
#endif /* ETHTOOL_GREGS */

#ifndef ETHTOOL_GMSGLVL
#define ETHTOOL_GMSGLVL		0x00000007 /* Get driver message level */
#endif
#ifndef ETHTOOL_SMSGLVL
#define ETHTOOL_SMSGLVL		0x00000008 /* Set driver msg level, priv. */
#endif
#ifndef ETHTOOL_NWAY_RST
#define ETHTOOL_NWAY_RST	0x00000009 /* Restart autonegotiation, priv */
#endif
#ifndef ETHTOOL_GLINK
#define ETHTOOL_GLINK		0x0000000a /* Get link status */
#endif
#ifndef ETHTOOL_GEEPROM
#define ETHTOOL_GEEPROM		0x0000000b /* Get EEPROM data */
#endif
#ifndef ETHTOOL_SEEPROM
#define ETHTOOL_SEEPROM		0x0000000c /* Set EEPROM data */
#endif
#ifndef ETHTOOL_GCOALESCE
#define ETHTOOL_GCOALESCE	0x0000000e /* Get coalesce config */
/* for configuring coalescing parameters of chip */
#define ethtool_coalesce _kc_ethtool_coalesce
struct _kc_ethtool_coalesce {
	u32	cmd;	/* ETHTOOL_{G,S}COALESCE */

	/* How many usecs to delay an RX interrupt after
	 * a packet arrives.  If 0, only rx_max_coalesced_frames
	 * is used.
	 */
	u32	rx_coalesce_usecs;

	/* How many packets to delay an RX interrupt after
	 * a packet arrives.  If 0, only rx_coalesce_usecs is
	 * used.  It is illegal to set both usecs and max frames
	 * to zero as this would cause RX interrupts to never be
	 * generated.
	 */
	u32	rx_max_coalesced_frames;

	/* Same as above two parameters, except that these values
	 * apply while an IRQ is being serviced by the host.  Not
	 * all cards support this feature and the values are ignored
	 * in that case.
	 */
	u32	rx_coalesce_usecs_irq;
	u32	rx_max_coalesced_frames_irq;

	/* How many usecs to delay a TX interrupt after
	 * a packet is sent.  If 0, only tx_max_coalesced_frames
	 * is used.
	 */
	u32	tx_coalesce_usecs;

	/* How many packets to delay a TX interrupt after
	 * a packet is sent.  If 0, only tx_coalesce_usecs is
	 * used.  It is illegal to set both usecs and max frames
	 * to zero as this would cause TX interrupts to never be
	 * generated.
	 */
	u32	tx_max_coalesced_frames;

	/* Same as above two parameters, except that these values
	 * apply while an IRQ is being serviced by the host.  Not
	 * all cards support this feature and the values are ignored
	 * in that case.
	 */
	u32	tx_coalesce_usecs_irq;
	u32	tx_max_coalesced_frames_irq;

	/* How many usecs to delay in-memory statistics
	 * block updates.  Some drivers do not have an in-memory
	 * statistic block, and in such cases this value is ignored.
	 * This value must not be zero.
	 */
	u32	stats_block_coalesce_usecs;

	/* Adaptive RX/TX coalescing is an algorithm implemented by
	 * some drivers to improve latency under low packet rates and
	 * improve throughput under high packet rates.  Some drivers
	 * only implement one of RX or TX adaptive coalescing.  Anything
	 * not implemented by the driver causes these values to be
	 * silently ignored.
	 */
	u32	use_adaptive_rx_coalesce;
	u32	use_adaptive_tx_coalesce;

	/* When the packet rate (measured in packets per second)
	 * is below pkt_rate_low, the {rx,tx}_*_low parameters are
	 * used.
	 */
	u32	pkt_rate_low;
	u32	rx_coalesce_usecs_low;
	u32	rx_max_coalesced_frames_low;
	u32	tx_coalesce_usecs_low;
	u32	tx_max_coalesced_frames_low;

	/* When the packet rate is below pkt_rate_high but above
	 * pkt_rate_low (both measured in packets per second) the
	 * normal {rx,tx}_* coalescing parameters are used.
	 */

	/* When the packet rate is (measured in packets per second)
	 * is above pkt_rate_high, the {rx,tx}_*_high parameters are
	 * used.
	 */
	u32	pkt_rate_high;
	u32	rx_coalesce_usecs_high;
	u32	rx_max_coalesced_frames_high;
	u32	tx_coalesce_usecs_high;
	u32	tx_max_coalesced_frames_high;

	/* How often to do adaptive coalescing packet rate sampling,
	 * measured in seconds.  Must not be zero.
	 */
	u32	rate_sample_interval;
};
#endif /* ETHTOOL_GCOALESCE */

#ifndef ETHTOOL_SCOALESCE
#define ETHTOOL_SCOALESCE	0x0000000f /* Set coalesce config. */
#endif
#ifndef ETHTOOL_GRINGPARAM
#define ETHTOOL_GRINGPARAM	0x00000010 /* Get ring parameters */
/* for configuring RX/TX ring parameters */
#define ethtool_ringparam _kc_ethtool_ringparam
struct _kc_ethtool_ringparam {
	u32	cmd;	/* ETHTOOL_{G,S}RINGPARAM */

	/* Read only attributes.  These indicate the maximum number
	 * of pending RX/TX ring entries the driver will allow the
	 * user to set.
	 */
	u32	rx_max_pending;
	u32	rx_mini_max_pending;
	u32	rx_jumbo_max_pending;
	u32	tx_max_pending;

	/* Values changeable by the user.  The valid values are
	 * in the range 1 to the "*_max_pending" counterpart above.
	 */
	u32	rx_pending;
	u32	rx_mini_pending;
	u32	rx_jumbo_pending;
	u32	tx_pending;
};
#endif /* ETHTOOL_GRINGPARAM */

#ifndef ETHTOOL_SRINGPARAM
#define ETHTOOL_SRINGPARAM	0x00000011 /* Set ring parameters, priv. */
#endif
#ifndef ETHTOOL_GPAUSEPARAM
#define ETHTOOL_GPAUSEPARAM	0x00000012 /* Get pause parameters */
/* for configuring link flow control parameters */
#define ethtool_pauseparam _kc_ethtool_pauseparam
struct _kc_ethtool_pauseparam {
	u32	cmd;	/* ETHTOOL_{G,S}PAUSEPARAM */

	/* If the link is being auto-negotiated (via ethtool_cmd.autoneg
	 * being true) the user may set 'autoneg' here non-zero to have the
	 * pause parameters be auto-negotiated too.  In such a case, the
	 * {rx,tx}_pause values below determine what capabilities are
	 * advertised.
	 *
	 * If 'autoneg' is zero or the link is not being auto-negotiated,
	 * then {rx,tx}_pause force the driver to use/not-use pause
	 * flow control.
	 */
	u32	autoneg;
	u32	rx_pause;
	u32	tx_pause;
};
#endif /* ETHTOOL_GPAUSEPARAM */

#ifndef ETHTOOL_SPAUSEPARAM
#define ETHTOOL_SPAUSEPARAM	0x00000013 /* Set pause parameters. */
#endif
#ifndef ETHTOOL_GRXCSUM
#define ETHTOOL_GRXCSUM		0x00000014 /* Get RX hw csum enable (ethtool_value) */
#endif
#ifndef ETHTOOL_SRXCSUM
#define ETHTOOL_SRXCSUM		0x00000015 /* Set RX hw csum enable (ethtool_value) */
#endif
#ifndef ETHTOOL_GTXCSUM
#define ETHTOOL_GTXCSUM		0x00000016 /* Get TX hw csum enable (ethtool_value) */
#endif
#ifndef ETHTOOL_STXCSUM
#define ETHTOOL_STXCSUM		0x00000017 /* Set TX hw csum enable (ethtool_value) */
#endif
#ifndef ETHTOOL_GSG
#define ETHTOOL_GSG		0x00000018 /* Get scatter-gather enable
					    * (ethtool_value) */
#endif
#ifndef ETHTOOL_SSG
#define ETHTOOL_SSG		0x00000019 /* Set scatter-gather enable
					    * (ethtool_value). */
#endif
#ifndef ETHTOOL_TEST
#define ETHTOOL_TEST		0x0000001a /* execute NIC self-test, priv. */
#endif
#ifndef ETHTOOL_GSTRINGS
#define ETHTOOL_GSTRINGS	0x0000001b /* get specified string set */
#endif
#ifndef ETHTOOL_PHYS_ID
#define ETHTOOL_PHYS_ID		0x0000001c /* identify the NIC */
#endif
#ifndef ETHTOOL_GSTATS
#define ETHTOOL_GSTATS		0x0000001d /* get NIC-specific statistics */
#endif
#ifndef ETHTOOL_GTSO
#define ETHTOOL_GTSO		0x0000001e /* Get TSO enable (ethtool_value) */
#endif
#ifndef ETHTOOL_STSO
#define ETHTOOL_STSO		0x0000001f /* Set TSO enable (ethtool_value) */
#endif

#ifndef ETHTOOL_BUSINFO_LEN
#define ETHTOOL_BUSINFO_LEN	32
#endif

#ifndef RHEL_RELEASE_CODE
/* NOTE: RHEL_RELEASE_* introduced in RHEL4.5 */
#define RHEL_RELEASE_CODE 0
#endif
#ifndef RHEL_RELEASE_VERSION
#define RHEL_RELEASE_VERSION(a,b) (((a) << 8) + (b))
#endif
#ifndef AX_RELEASE_CODE
#define AX_RELEASE_CODE 0
#endif
#ifndef AX_RELEASE_VERSION
#define AX_RELEASE_VERSION(a,b) (((a) << 8) + (b))
#endif

/* SuSE version macro is the same as Linux kernel version */
#ifndef SLE_VERSION
#define SLE_VERSION(a,b,c) KERNEL_VERSION(a,b,c)
#endif
#ifndef SLE_VERSION_CODE
#ifdef CONFIG_SUSE_KERNEL
/* SLES11 GA is 2.6.27 based */
#if ( LINUX_VERSION_CODE == KERNEL_VERSION(2,6,27) )
#define SLE_VERSION_CODE SLE_VERSION(11,0,0)
#elif ( LINUX_VERSION_CODE == KERNEL_VERSION(2,6,32) )
/* SLES11 SP1 is 2.6.32 based */
#define SLE_VERSION_CODE SLE_VERSION(11,1,0)
#else
#define SLE_VERSION_CODE 0
#endif
#else /* CONFIG_SUSE_KERNEL */
#define SLE_VERSION_CODE 0
#endif /* CONFIG_SUSE_KERNEL */
#endif /* SLE_VERSION_CODE */

#ifdef __KLOCWORK__
#ifdef ARRAY_SIZE
#undef ARRAY_SIZE
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#endif
#endif /* __KLOCWORK__ */

/*****************************************************************************/
/* 2.4.3 => 2.4.0 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,3) )

/**************************************/
/* PCI DRIVER API */

#ifndef pci_set_dma_mask
#define pci_set_dma_mask _kc_pci_set_dma_mask
extern int _kc_pci_set_dma_mask(struct pci_dev *dev, dma_addr_t mask);
#endif

#ifndef pci_request_regions
#define pci_request_regions _kc_pci_request_regions
extern int _kc_pci_request_regions(struct pci_dev *pdev, char *res_name);
#endif

#ifndef pci_release_regions
#define pci_release_regions _kc_pci_release_regions
extern void _kc_pci_release_regions(struct pci_dev *pdev);
#endif

/**************************************/
/* NETWORK DRIVER API */

#ifndef alloc_etherdev
#define alloc_etherdev _kc_alloc_etherdev
extern struct net_device * _kc_alloc_etherdev(int sizeof_priv);
#endif

#ifndef is_valid_ether_addr
#define is_valid_ether_addr _kc_is_valid_ether_addr
extern int _kc_is_valid_ether_addr(u8 *addr);
#endif

/**************************************/
/* MISCELLANEOUS */

#ifndef INIT_TQUEUE
#define INIT_TQUEUE(_tq, _routine, _data)		\
	do {						\
		INIT_LIST_HEAD(&(_tq)->list);		\
		(_tq)->sync = 0;			\
		(_tq)->routine = _routine;		\
		(_tq)->data = _data;			\
	} while (0)
#endif

#endif /* 2.4.3 => 2.4.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,5) )
/* Generic MII registers. */
#define MII_BMCR            0x00        /* Basic mode control register */
#define MII_BMSR            0x01        /* Basic mode status register  */
#define MII_PHYSID1         0x02        /* PHYS ID 1                   */
#define MII_PHYSID2         0x03        /* PHYS ID 2                   */
#define MII_ADVERTISE       0x04        /* Advertisement control reg   */
#define MII_LPA             0x05        /* Link partner ability reg    */
#define MII_EXPANSION       0x06        /* Expansion register          */
/* Basic mode control register. */
#define BMCR_FULLDPLX           0x0100  /* Full duplex                 */
#define BMCR_ANENABLE           0x1000  /* Enable auto negotiation     */
/* Basic mode status register. */
#define BMSR_ERCAP              0x0001  /* Ext-reg capability          */
#define BMSR_ANEGCAPABLE        0x0008  /* Able to do auto-negotiation */
#define BMSR_10HALF             0x0800  /* Can do 10mbps, half-duplex  */
#define BMSR_10FULL             0x1000  /* Can do 10mbps, full-duplex  */
#define BMSR_100HALF            0x2000  /* Can do 100mbps, half-duplex */
#define BMSR_100FULL            0x4000  /* Can do 100mbps, full-duplex */
/* Advertisement control register. */
#define ADVERTISE_CSMA          0x0001  /* Only selector supported     */
#define ADVERTISE_10HALF        0x0020  /* Try for 10mbps half-duplex  */
#define ADVERTISE_10FULL        0x0040  /* Try for 10mbps full-duplex  */
#define ADVERTISE_100HALF       0x0080  /* Try for 100mbps half-duplex */
#define ADVERTISE_100FULL       0x0100  /* Try for 100mbps full-duplex */
#define ADVERTISE_ALL (ADVERTISE_10HALF | ADVERTISE_10FULL | \
                       ADVERTISE_100HALF | ADVERTISE_100FULL)
/* Expansion register for auto-negotiation. */
#define EXPANSION_ENABLENPAGE   0x0004  /* This enables npage words    */
#endif

/*****************************************************************************/
/* 2.4.6 => 2.4.3 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,6) )

#ifndef pci_set_power_state
#define pci_set_power_state _kc_pci_set_power_state
extern int _kc_pci_set_power_state(struct pci_dev *dev, int state);
#endif

#ifndef pci_enable_wake
#define pci_enable_wake _kc_pci_enable_wake
extern int _kc_pci_enable_wake(struct pci_dev *pdev, u32 state, int enable);
#endif

#ifndef pci_disable_device
#define pci_disable_device _kc_pci_disable_device
extern void _kc_pci_disable_device(struct pci_dev *pdev);
#endif

/* PCI PM entry point syntax changed, so don't support suspend/resume */
#undef CONFIG_PM

#endif /* 2.4.6 => 2.4.3 */

#ifndef HAVE_PCI_SET_MWI
#define pci_set_mwi(X) pci_write_config_word(X, \
			       PCI_COMMAND, adapter->hw.bus.pci_cmd_word | \
			       PCI_COMMAND_INVALIDATE);
#define pci_clear_mwi(X) pci_write_config_word(X, \
			       PCI_COMMAND, adapter->hw.bus.pci_cmd_word & \
			       ~PCI_COMMAND_INVALIDATE);
#endif

/*****************************************************************************/
/* 2.4.10 => 2.4.9 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,10) )

/**************************************/
/* MODULE API */

#ifndef MODULE_LICENSE
	#define MODULE_LICENSE(X)
#endif

/**************************************/
/* OTHER */

#undef min
#define min(x,y) ({ \
	const typeof(x) _x = (x);	\
	const typeof(y) _y = (y);	\
	(void) (&_x == &_y);		\
	_x < _y ? _x : _y; })

#undef max
#define max(x,y) ({ \
	const typeof(x) _x = (x);	\
	const typeof(y) _y = (y);	\
	(void) (&_x == &_y);		\
	_x > _y ? _x : _y; })

#define min_t(type,x,y) ({ \
	type _x = (x); \
	type _y = (y); \
	_x < _y ? _x : _y; })

#define max_t(type,x,y) ({ \
	type _x = (x); \
	type _y = (y); \
	_x > _y ? _x : _y; })

#ifndef list_for_each_safe
#define list_for_each_safe(pos, n, head) \
	for (pos = (head)->next, n = pos->next; pos != (head); \
		pos = n, n = pos->next)
#endif

#ifndef ____cacheline_aligned_in_smp
#ifdef CONFIG_SMP
#define ____cacheline_aligned_in_smp ____cacheline_aligned
#else
#define ____cacheline_aligned_in_smp
#endif /* CONFIG_SMP */
#endif

#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,8) )
extern int _kc_snprintf(char * buf, size_t size, const char *fmt, ...);
#define snprintf(buf, size, fmt, args...) _kc_snprintf(buf, size, fmt, ##args)
extern int _kc_vsnprintf(char *buf, size_t size, const char *fmt, va_list args);
#define vsnprintf(buf, size, fmt, args) _kc_vsnprintf(buf, size, fmt, args)
#else /* 2.4.8 => 2.4.9 */
extern int snprintf(char * buf, size_t size, const char *fmt, ...);
extern int vsnprintf(char *buf, size_t size, const char *fmt, va_list args);
#endif
#endif /* 2.4.10 -> 2.4.6 */


/*****************************************************************************/
/* 2.4.12 => 2.4.10 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,12) )
#ifndef HAVE_NETIF_MSG
#define HAVE_NETIF_MSG 1
enum {
	NETIF_MSG_DRV		= 0x0001,
	NETIF_MSG_PROBE		= 0x0002,
	NETIF_MSG_LINK		= 0x0004,
	NETIF_MSG_TIMER		= 0x0008,
	NETIF_MSG_IFDOWN	= 0x0010,
	NETIF_MSG_IFUP		= 0x0020,
	NETIF_MSG_RX_ERR	= 0x0040,
	NETIF_MSG_TX_ERR	= 0x0080,
	NETIF_MSG_TX_QUEUED	= 0x0100,
	NETIF_MSG_INTR		= 0x0200,
	NETIF_MSG_TX_DONE	= 0x0400,
	NETIF_MSG_RX_STATUS	= 0x0800,
	NETIF_MSG_PKTDATA	= 0x1000,
	NETIF_MSG_HW		= 0x2000,
	NETIF_MSG_WOL		= 0x4000,
};

#define netif_msg_drv(p)	((p)->msg_enable & NETIF_MSG_DRV)
#define netif_msg_probe(p)	((p)->msg_enable & NETIF_MSG_PROBE)
#define netif_msg_link(p)	((p)->msg_enable & NETIF_MSG_LINK)
#define netif_msg_timer(p)	((p)->msg_enable & NETIF_MSG_TIMER)
#define netif_msg_ifdown(p)	((p)->msg_enable & NETIF_MSG_IFDOWN)
#define netif_msg_ifup(p)	((p)->msg_enable & NETIF_MSG_IFUP)
#define netif_msg_rx_err(p)	((p)->msg_enable & NETIF_MSG_RX_ERR)
#define netif_msg_tx_err(p)	((p)->msg_enable & NETIF_MSG_TX_ERR)
#define netif_msg_tx_queued(p)	((p)->msg_enable & NETIF_MSG_TX_QUEUED)
#define netif_msg_intr(p)	((p)->msg_enable & NETIF_MSG_INTR)
#define netif_msg_tx_done(p)	((p)->msg_enable & NETIF_MSG_TX_DONE)
#define netif_msg_rx_status(p)	((p)->msg_enable & NETIF_MSG_RX_STATUS)
#define netif_msg_pktdata(p)	((p)->msg_enable & NETIF_MSG_PKTDATA)
#endif /* !HAVE_NETIF_MSG */
#endif /* 2.4.12 => 2.4.10 */

/*****************************************************************************/
/* 2.4.13 => 2.4.12 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,13) )

/**************************************/
/* PCI DMA MAPPING */

#ifndef virt_to_page
	#define virt_to_page(v) (mem_map + (virt_to_phys(v) >> PAGE_SHIFT))
#endif

#ifndef pci_map_page
#define pci_map_page _kc_pci_map_page
extern u64 _kc_pci_map_page(struct pci_dev *dev, struct page *page, unsigned long offset, size_t size, int direction);
#endif

#ifndef pci_unmap_page
#define pci_unmap_page _kc_pci_unmap_page
extern void _kc_pci_unmap_page(struct pci_dev *dev, u64 dma_addr, size_t size, int direction);
#endif

/* pci_set_dma_mask takes dma_addr_t, which is only 32-bits prior to 2.4.13 */

#undef DMA_32BIT_MASK
#define DMA_32BIT_MASK	0xffffffff
#undef DMA_64BIT_MASK
#define DMA_64BIT_MASK	0xffffffff

/**************************************/
/* OTHER */

#ifndef cpu_relax
#define cpu_relax()	rep_nop()
#endif

struct vlan_ethhdr {
	unsigned char h_dest[ETH_ALEN];
	unsigned char h_source[ETH_ALEN];
	unsigned short h_vlan_proto;
	unsigned short h_vlan_TCI;
	unsigned short h_vlan_encapsulated_proto;
};
#endif /* 2.4.13 => 2.4.12 */

/*****************************************************************************/
/* 2.4.17 => 2.4.12 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,17) )

#ifndef __devexit_p
	#define __devexit_p(x) &(x)
#endif

#endif /* 2.4.17 => 2.4.13 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,18) )
#define NETIF_MSG_HW	0x2000
#define NETIF_MSG_WOL	0x4000

#ifndef netif_msg_hw
#define netif_msg_hw(p)		((p)->msg_enable & NETIF_MSG_HW)
#endif
#ifndef netif_msg_wol
#define netif_msg_wol(p)	((p)->msg_enable & NETIF_MSG_WOL)
#endif
#endif /* 2.4.18 */

/*****************************************************************************/

/*****************************************************************************/
/* 2.4.20 => 2.4.19 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,20) )

/* we won't support NAPI on less than 2.4.20 */
#ifdef NAPI
#undef NAPI
#undef CONFIG_IXGBE_NAPI
#endif

#endif /* 2.4.20 => 2.4.19 */

/*****************************************************************************/
/* 2.4.22 => 2.4.17 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,22) )
#define pci_name(x)	((x)->slot_name)
#endif

/*****************************************************************************/
/* 2.4.22 => 2.4.17 */

#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,22) )
#ifndef IXGBE_NO_LRO
/* Don't enable LRO for these legacy kernels */
#define IXGBE_NO_LRO
#endif
#endif

/*****************************************************************************/
/*****************************************************************************/
/* 2.4.23 => 2.4.22 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,23) )
/*****************************************************************************/
#ifdef NAPI
#ifndef netif_poll_disable
#define netif_poll_disable(x) _kc_netif_poll_disable(x)
static inline void _kc_netif_poll_disable(struct net_device *netdev)
{
	while (test_and_set_bit(__LINK_STATE_RX_SCHED, &netdev->state)) {
		/* No hurry */
		current->state = TASK_INTERRUPTIBLE;
		schedule_timeout(1);
	}
}
#endif
#ifndef netif_poll_enable
#define netif_poll_enable(x) _kc_netif_poll_enable(x)
static inline void _kc_netif_poll_enable(struct net_device *netdev)
{
	clear_bit(__LINK_STATE_RX_SCHED, &netdev->state);
}
#endif
#endif /* NAPI */
#ifndef netif_tx_disable
#define netif_tx_disable(x) _kc_netif_tx_disable(x)
static inline void _kc_netif_tx_disable(struct net_device *dev)
{
	spin_lock_bh(&dev->xmit_lock);
	netif_stop_queue(dev);
	spin_unlock_bh(&dev->xmit_lock);
}
#endif
#else /* 2.4.23 => 2.4.22 */
#define HAVE_SCTP
#endif /* 2.4.23 => 2.4.22 */

/*****************************************************************************/
/* 2.6.4 => 2.6.0 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,25) || \
    ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) && \
      LINUX_VERSION_CODE < KERNEL_VERSION(2,6,4) ) )
#define ETHTOOL_OPS_COMPAT
#endif /* 2.6.4 => 2.6.0 */

/*****************************************************************************/
/* 2.5.71 => 2.4.x */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,5,71) )
#define sk_protocol protocol
#define pci_get_device pci_find_device
#endif /* 2.5.70 => 2.4.x */

/*****************************************************************************/
/* < 2.4.27 or 2.6.0 <= 2.6.5 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,27) || \
    ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) && \
      LINUX_VERSION_CODE < KERNEL_VERSION(2,6,5) ) )

#ifndef netif_msg_init
#define netif_msg_init _kc_netif_msg_init
static inline u32 _kc_netif_msg_init(int debug_value, int default_msg_enable_bits)
{
	/* use default */
	if (debug_value < 0 || debug_value >= (sizeof(u32) * 8))
		return default_msg_enable_bits;
	if (debug_value == 0) /* no output */
		return 0;
	/* set low N bits */
	return (1 << debug_value) -1;
}
#endif

#endif /* < 2.4.27 or 2.6.0 <= 2.6.5 */
/*****************************************************************************/
#if (( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,27) ) || \
     (( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) ) && \
      ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,3) )))
#define netdev_priv(x) x->priv
#endif

/*****************************************************************************/
/* <= 2.5.0 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) )
#include <linux/rtnetlink.h>
#undef pci_register_driver
#define pci_register_driver pci_module_init

/*
 * Most of the dma compat code is copied/modified from the 2.4.37
 * /include/linux/libata-compat.h header file
 */
/* These definitions mirror those in pci.h, so they can be used
 * interchangeably with their PCI_ counterparts */
enum dma_data_direction {
	DMA_BIDIRECTIONAL = 0,
	DMA_TO_DEVICE = 1,
	DMA_FROM_DEVICE = 2,
	DMA_NONE = 3,
};

struct device {
	struct pci_dev pdev;
};

static inline struct pci_dev *to_pci_dev (struct device *dev)
{
	return (struct pci_dev *) dev;
}
static inline struct device *pci_dev_to_dev(struct pci_dev *pdev)
{
	return (struct device *) pdev;
}

#define pdev_printk(lvl, pdev, fmt, args...)	\
	printk("%s %s: " fmt, lvl, pci_name(pdev), ## args)
#define dev_err(dev, fmt, args...)            \
	pdev_printk(KERN_ERR, to_pci_dev(dev), fmt, ## args)
#define dev_info(dev, fmt, args...)            \
	pdev_printk(KERN_INFO, to_pci_dev(dev), fmt, ## args)
#define dev_warn(dev, fmt, args...)            \
	pdev_printk(KERN_WARNING, to_pci_dev(dev), fmt, ## args)

/* NOTE: dangerous! we ignore the 'gfp' argument */
#define dma_alloc_coherent(dev,sz,dma,gfp) \
	pci_alloc_consistent(to_pci_dev(dev),(sz),(dma))
#define dma_free_coherent(dev,sz,addr,dma_addr) \
	pci_free_consistent(to_pci_dev(dev),(sz),(addr),(dma_addr))

#define dma_map_page(dev,a,b,c,d) \
	pci_map_page(to_pci_dev(dev),(a),(b),(c),(d))
#define dma_unmap_page(dev,a,b,c) \
	pci_unmap_page(to_pci_dev(dev),(a),(b),(c))

#define dma_map_single(dev,a,b,c) \
	pci_map_single(to_pci_dev(dev),(a),(b),(c))
#define dma_unmap_single(dev,a,b,c) \
	pci_unmap_single(to_pci_dev(dev),(a),(b),(c))

#define dma_sync_single(dev,a,b,c) \
	pci_dma_sync_single(to_pci_dev(dev),(a),(b),(c))

/* for range just sync everything, that's all the pci API can do */
#define dma_sync_single_range(dev,addr,off,sz,dir) \
	pci_dma_sync_single(to_pci_dev(dev),(addr),(off)+(sz),(dir))

#define dma_set_mask(dev,mask) \
	pci_set_dma_mask(to_pci_dev(dev),(mask))

/* hlist_* code - double linked lists */
struct hlist_head {
	struct hlist_node *first;
};

struct hlist_node {
	struct hlist_node *next, **pprev;
};

static inline void __hlist_del(struct hlist_node *n)
{
	struct hlist_node *next = n->next;
	struct hlist_node **pprev = n->pprev;
	*pprev = next;
	if (next)
	next->pprev = pprev;
}

static inline void hlist_del(struct hlist_node *n)
{
	__hlist_del(n);
	n->next = NULL;
	n->pprev = NULL;
}

static inline void hlist_add_head(struct hlist_node *n, struct hlist_head *h)
{
	struct hlist_node *first = h->first;
	n->next = first;
	if (first)
		first->pprev = &n->next;
	h->first = n;
	n->pprev = &h->first;
}

static inline int hlist_empty(const struct hlist_head *h)
{
	return !h->first;
}
#define HLIST_HEAD_INIT { .first = NULL }
#define HLIST_HEAD(name) struct hlist_head name = {  .first = NULL }
#define INIT_HLIST_HEAD(ptr) ((ptr)->first = NULL)
static inline void INIT_HLIST_NODE(struct hlist_node *h)
{
	h->next = NULL;
	h->pprev = NULL;
}
#define hlist_entry(ptr, type, member) container_of(ptr,type,member)

#define hlist_for_each_entry(tpos, pos, head, member)                    \
	for (pos = (head)->first;                                        \
	     pos && ({ prefetch(pos->next); 1;}) &&                      \
		({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
	     pos = pos->next)

#define hlist_for_each_entry_safe(tpos, pos, n, head, member)            \
	for (pos = (head)->first;                                        \
	     pos && ({ n = pos->next; 1; }) &&                           \
		({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
	     pos = n)

#ifndef might_sleep
#define might_sleep()
#endif
#else
static inline struct device *pci_dev_to_dev(struct pci_dev *pdev)
{
	return &pdev->dev;
}
#endif /* <= 2.5.0 */

/*****************************************************************************/
/* 2.5.28 => 2.4.23 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,5,28) )

static inline void _kc_synchronize_irq(void)
{
	synchronize_irq();
}
#undef synchronize_irq
#define synchronize_irq(X) _kc_synchronize_irq()

#include <linux/tqueue.h>
#define work_struct tq_struct
#undef INIT_WORK
#define INIT_WORK(a,b) INIT_TQUEUE(a,(void (*)(void *))b,a)
#undef container_of
#define container_of list_entry
#define schedule_work schedule_task
#define flush_scheduled_work flush_scheduled_tasks
#define cancel_work_sync(x) flush_scheduled_work()

#endif /* 2.5.28 => 2.4.17 */

/*****************************************************************************/
/* 2.6.0 => 2.5.28 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) )
#undef get_cpu
#define get_cpu() smp_processor_id()
#undef put_cpu
#define put_cpu() do { } while(0)
#define MODULE_INFO(version, _version)
#ifndef CONFIG_E1000_DISABLE_PACKET_SPLIT
#define CONFIG_E1000_DISABLE_PACKET_SPLIT 1
#endif
#define CONFIG_IGB_DISABLE_PACKET_SPLIT 1

#define dma_set_coherent_mask(dev,mask) 1

#undef dev_put
#define dev_put(dev) __dev_put(dev)

#ifndef skb_fill_page_desc
#define skb_fill_page_desc _kc_skb_fill_page_desc
extern void _kc_skb_fill_page_desc(struct sk_buff *skb, int i, struct page *page, int off, int size);
#endif

#undef ALIGN
#define ALIGN(x,a) (((x)+(a)-1)&~((a)-1))

#ifndef page_count
#define page_count(p) atomic_read(&(p)->count)
#endif

#ifdef MAX_NUMNODES
#undef MAX_NUMNODES
#endif
#define MAX_NUMNODES 1

/* find_first_bit and find_next bit are not defined for most
 * 2.4 kernels (except for the redhat 2.4.21 kernels
 */
#include <linux/bitops.h>
#define BITOP_WORD(nr)          ((nr) / BITS_PER_LONG)
#undef find_next_bit
#define find_next_bit _kc_find_next_bit
extern unsigned long _kc_find_next_bit(const unsigned long *addr,
                                       unsigned long size,
                                       unsigned long offset);
#define find_first_bit(addr, size) find_next_bit((addr), (size), 0)


#ifndef netdev_name
static inline const char *_kc_netdev_name(const struct net_device *dev)
{
	if (strchr(dev->name, '%'))
		return "(unregistered net_device)";
	return dev->name;
}
#define netdev_name(netdev)	_kc_netdev_name(netdev)
#endif /* netdev_name */

#ifndef strlcpy
#define strlcpy _kc_strlcpy
extern size_t _kc_strlcpy(char *dest, const char *src, size_t size);
#endif /* strlcpy */

#endif /* 2.6.0 => 2.5.28 */

/*****************************************************************************/
/* 2.6.4 => 2.6.0 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,4) )
#define MODULE_VERSION(_version) MODULE_INFO(version, _version)
#endif /* 2.6.4 => 2.6.0 */

/*****************************************************************************/
/* 2.6.5 => 2.6.0 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,5) )
#define dma_sync_single_for_cpu		dma_sync_single
#define dma_sync_single_for_device	dma_sync_single
#define dma_sync_single_range_for_cpu		dma_sync_single_range
#define dma_sync_single_range_for_device	dma_sync_single_range
#ifndef pci_dma_mapping_error
#define pci_dma_mapping_error _kc_pci_dma_mapping_error
static inline int _kc_pci_dma_mapping_error(dma_addr_t dma_addr)
{
	return dma_addr == 0;
}
#endif
#endif /* 2.6.5 => 2.6.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,4) )
extern int _kc_scnprintf(char * buf, size_t size, const char *fmt, ...);
#define scnprintf(buf, size, fmt, args...) _kc_scnprintf(buf, size, fmt, ##args)
#endif /* < 2.6.4 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,6) )
/* taken from 2.6 include/linux/bitmap.h */
#undef bitmap_zero
#define bitmap_zero _kc_bitmap_zero
static inline void _kc_bitmap_zero(unsigned long *dst, int nbits)
{
        if (nbits <= BITS_PER_LONG)
                *dst = 0UL;
        else {
                int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
                memset(dst, 0, len);
        }
}
#define random_ether_addr _kc_random_ether_addr
static inline void _kc_random_ether_addr(u8 *addr)
{
        get_random_bytes(addr, ETH_ALEN);
        addr[0] &= 0xfe; /* clear multicast */
        addr[0] |= 0x02; /* set local assignment */
}
#define page_to_nid(x) 0

#endif /* < 2.6.6 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,7) )
#undef if_mii
#define if_mii _kc_if_mii
static inline struct mii_ioctl_data *_kc_if_mii(struct ifreq *rq)
{
	return (struct mii_ioctl_data *) &rq->ifr_ifru;
}

#ifndef __force
#define __force
#endif
#endif /* < 2.6.7 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,8) )
#ifndef PCI_EXP_DEVCTL
#define PCI_EXP_DEVCTL 8
#endif
#ifndef PCI_EXP_DEVCTL_CERE
#define PCI_EXP_DEVCTL_CERE 0x0001
#endif
#define msleep(x)	do { set_current_state(TASK_UNINTERRUPTIBLE); \
				schedule_timeout((x * HZ)/1000 + 2); \
			} while (0)

#endif /* < 2.6.8 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9))
#include <net/dsfield.h>
#define __iomem

#ifndef kcalloc
#define kcalloc(n, size, flags) _kc_kzalloc(((n) * (size)), flags)
extern void *_kc_kzalloc(size_t size, int flags);
#endif
#define MSEC_PER_SEC    1000L
static inline unsigned int _kc_jiffies_to_msecs(const unsigned long j)
{
#if HZ <= MSEC_PER_SEC && !(MSEC_PER_SEC % HZ)
	return (MSEC_PER_SEC / HZ) * j;
#elif HZ > MSEC_PER_SEC && !(HZ % MSEC_PER_SEC)
	return (j + (HZ / MSEC_PER_SEC) - 1)/(HZ / MSEC_PER_SEC);
#else
	return (j * MSEC_PER_SEC) / HZ;
#endif
}
static inline unsigned long _kc_msecs_to_jiffies(const unsigned int m)
{
	if (m > _kc_jiffies_to_msecs(MAX_JIFFY_OFFSET))
		return MAX_JIFFY_OFFSET;
#if HZ <= MSEC_PER_SEC && !(MSEC_PER_SEC % HZ)
	return (m + (MSEC_PER_SEC / HZ) - 1) / (MSEC_PER_SEC / HZ);
#elif HZ > MSEC_PER_SEC && !(HZ % MSEC_PER_SEC)
	return m * (HZ / MSEC_PER_SEC);
#else
	return (m * HZ + MSEC_PER_SEC - 1) / MSEC_PER_SEC;
#endif
}

#define msleep_interruptible _kc_msleep_interruptible
static inline unsigned long _kc_msleep_interruptible(unsigned int msecs)
{
	unsigned long timeout = _kc_msecs_to_jiffies(msecs) + 1;

	while (timeout && !signal_pending(current)) {
		__set_current_state(TASK_INTERRUPTIBLE);
		timeout = schedule_timeout(timeout);
	}
	return _kc_jiffies_to_msecs(timeout);
}

/* Basic mode control register. */
#define BMCR_SPEED1000		0x0040  /* MSB of Speed (1000)         */

#ifndef __le16
#define __le16 u16
#endif
#ifndef __le32
#define __le32 u32
#endif
#ifndef __le64
#define __le64 u64
#endif
#ifndef __be16
#define __be16 u16
#endif
#ifndef __be32
#define __be32 u32
#endif
#ifndef __be64
#define __be64 u64
#endif

static inline struct vlan_ethhdr *vlan_eth_hdr(const struct sk_buff *skb)
{
	return (struct vlan_ethhdr *)skb->mac.raw;
}

/* Wake-On-Lan options. */
#define WAKE_PHY		(1 << 0)
#define WAKE_UCAST		(1 << 1)
#define WAKE_MCAST		(1 << 2)
#define WAKE_BCAST		(1 << 3)
#define WAKE_ARP		(1 << 4)
#define WAKE_MAGIC		(1 << 5)
#define WAKE_MAGICSECURE	(1 << 6) /* only meaningful if WAKE_MAGIC */

#define skb_header_pointer _kc_skb_header_pointer
static inline void *_kc_skb_header_pointer(const struct sk_buff *skb,
					    int offset, int len, void *buffer)
{
	int hlen = skb_headlen(skb);

	if (hlen - offset >= len)
		return skb->data + offset;

#ifdef MAX_SKB_FRAGS
	if (skb_copy_bits(skb, offset, buffer, len) < 0)
		return NULL;

	return buffer;
#else
	return NULL;
#endif

#ifndef NETDEV_TX_OK
#define NETDEV_TX_OK 0
#endif
#ifndef NETDEV_TX_BUSY
#define NETDEV_TX_BUSY 1
#endif
#ifndef NETDEV_TX_LOCKED
#define NETDEV_TX_LOCKED -1
#endif
}

#ifndef __bitwise
#define __bitwise
#endif
#endif /* < 2.6.9 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10) )
#ifdef module_param_array_named
#undef module_param_array_named
#define module_param_array_named(name, array, type, nump, perm)          \
	static struct kparam_array __param_arr_##name                    \
	= { ARRAY_SIZE(array), nump, param_set_##type, param_get_##type, \
	    sizeof(array[0]), array };                                   \
	module_param_call(name, param_array_set, param_array_get,        \
			  &__param_arr_##name, perm)
#endif /* module_param_array_named */
/*
 * num_online is broken for all < 2.6.10 kernels.  This is needed to support
 * Node module parameter of ixgbe.
 */
#undef num_online_nodes
#define num_online_nodes(n) 1
extern DECLARE_BITMAP(_kcompat_node_online_map, MAX_NUMNODES);
#undef node_online_map
#define node_online_map _kcompat_node_online_map
#endif /* < 2.6.10 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11) )
#define PCI_D0      0
#define PCI_D1      1
#define PCI_D2      2
#define PCI_D3hot   3
#define PCI_D3cold  4
typedef int pci_power_t;
#define pci_choose_state(pdev,state) state
#define PMSG_SUSPEND 3
#define PCI_EXP_LNKCTL	16

#undef NETIF_F_LLTX

#ifndef ARCH_HAS_PREFETCH
#define prefetch(X)
#endif

#ifndef NET_IP_ALIGN
#define NET_IP_ALIGN 2
#endif

#define KC_USEC_PER_SEC	1000000L
#define usecs_to_jiffies _kc_usecs_to_jiffies
static inline unsigned int _kc_jiffies_to_usecs(const unsigned long j)
{
#if HZ <= KC_USEC_PER_SEC && !(KC_USEC_PER_SEC % HZ)
	return (KC_USEC_PER_SEC / HZ) * j;
#elif HZ > KC_USEC_PER_SEC && !(HZ % KC_USEC_PER_SEC)
	return (j + (HZ / KC_USEC_PER_SEC) - 1)/(HZ / KC_USEC_PER_SEC);
#else
	return (j * KC_USEC_PER_SEC) / HZ;
#endif
}
static inline unsigned long _kc_usecs_to_jiffies(const unsigned int m)
{
	if (m > _kc_jiffies_to_usecs(MAX_JIFFY_OFFSET))
		return MAX_JIFFY_OFFSET;
#if HZ <= KC_USEC_PER_SEC && !(KC_USEC_PER_SEC % HZ)
	return (m + (KC_USEC_PER_SEC / HZ) - 1) / (KC_USEC_PER_SEC / HZ);
#elif HZ > KC_USEC_PER_SEC && !(HZ % KC_USEC_PER_SEC)
	return m * (HZ / KC_USEC_PER_SEC);
#else
	return (m * HZ + KC_USEC_PER_SEC - 1) / KC_USEC_PER_SEC;
#endif
}
#endif /* < 2.6.11 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,12) )
#include <linux/reboot.h>
#define USE_REBOOT_NOTIFIER

/* Generic MII registers. */
#define MII_CTRL1000        0x09        /* 1000BASE-T control          */
#define MII_STAT1000        0x0a        /* 1000BASE-T status           */
/* Advertisement control register. */
#define ADVERTISE_PAUSE_CAP     0x0400  /* Try for pause               */
#define ADVERTISE_PAUSE_ASYM    0x0800  /* Try for asymmetric pause     */
/* 1000BASE-T Control register */
#define ADVERTISE_1000FULL      0x0200  /* Advertise 1000BASE-T full duplex */
#ifndef is_zero_ether_addr
#define is_zero_ether_addr _kc_is_zero_ether_addr
static inline int _kc_is_zero_ether_addr(const u8 *addr)
{
	return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]);
}
#endif /* is_zero_ether_addr */
#ifndef is_multicast_ether_addr
#define is_multicast_ether_addr _kc_is_multicast_ether_addr
static inline int _kc_is_multicast_ether_addr(const u8 *addr)
{
	return addr[0] & 0x01;
}
#endif /* is_multicast_ether_addr */
#endif /* < 2.6.12 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,13) )
#ifndef kstrdup
#define kstrdup _kc_kstrdup
extern char *_kc_kstrdup(const char *s, unsigned int gfp);
#endif
#endif /* < 2.6.13 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,14) )
#define pm_message_t u32
#ifndef kzalloc
#define kzalloc _kc_kzalloc
extern void *_kc_kzalloc(size_t size, int flags);
#endif

/* Generic MII registers. */
#define MII_ESTATUS	    0x0f	/* Extended Status */
/* Basic mode status register. */
#define BMSR_ESTATEN		0x0100	/* Extended Status in R15 */
/* Extended status register. */
#define ESTATUS_1000_TFULL	0x2000	/* Can do 1000BT Full */
#define ESTATUS_1000_THALF	0x1000	/* Can do 1000BT Half */

#define ADVERTISED_Pause	(1 << 13)
#define ADVERTISED_Asym_Pause	(1 << 14)

#if (!(RHEL_RELEASE_CODE && \
       (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(4,3)) && \
       (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(5,0))))
#if ((LINUX_VERSION_CODE == KERNEL_VERSION(2,6,9)) && !defined(gfp_t))
#define gfp_t unsigned
#else
typedef unsigned gfp_t;
#endif
#endif /* !RHEL4.3->RHEL5.0 */

#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,9) )
#ifdef CONFIG_X86_64
#define dma_sync_single_range_for_cpu(dev, dma_handle, offset, size, dir)       \
	dma_sync_single_for_cpu(dev, dma_handle, size, dir)
#define dma_sync_single_range_for_device(dev, dma_handle, offset, size, dir)    \
	dma_sync_single_for_device(dev, dma_handle, size, dir)
#endif
#endif
#endif /* < 2.6.14 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,15) )
#ifndef vmalloc_node
#define vmalloc_node(a,b) vmalloc(a)
#endif /* vmalloc_node*/

#define setup_timer(_timer, _function, _data) \
do { \
	(_timer)->function = _function; \
	(_timer)->data = _data; \
	init_timer(_timer); \
} while (0)
#ifndef device_can_wakeup
#define device_can_wakeup(dev)	(1)
#endif
#ifndef device_set_wakeup_enable
#define device_set_wakeup_enable(dev, val)	do{}while(0)
#endif
#ifndef device_init_wakeup
#define device_init_wakeup(dev,val) do {} while (0)
#endif
static inline unsigned _kc_compare_ether_addr(const u8 *addr1, const u8 *addr2)
{
	const u16 *a = (const u16 *) addr1;
	const u16 *b = (const u16 *) addr2;

	return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) != 0;
}
#undef compare_ether_addr
#define compare_ether_addr(addr1, addr2) _kc_compare_ether_addr(addr1, addr2)
#endif /* < 2.6.15 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16) )
#undef DEFINE_MUTEX
#define DEFINE_MUTEX(x)	DECLARE_MUTEX(x)
#define mutex_lock(x)	down_interruptible(x)
#define mutex_unlock(x)	up(x)

#ifndef ____cacheline_internodealigned_in_smp
#ifdef CONFIG_SMP
#define ____cacheline_internodealigned_in_smp ____cacheline_aligned_in_smp
#else
#define ____cacheline_internodealigned_in_smp
#endif /* CONFIG_SMP */
#endif /* ____cacheline_internodealigned_in_smp */
#undef HAVE_PCI_ERS
#else /* 2.6.16 and above */
#undef HAVE_PCI_ERS
#define HAVE_PCI_ERS
#endif /* < 2.6.16 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) )
#ifndef first_online_node
#define first_online_node 0
#endif
#ifndef NET_SKB_PAD
#define NET_SKB_PAD 16
#endif
#endif /* < 2.6.17 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18) )

#ifndef IRQ_HANDLED
#define irqreturn_t void
#define IRQ_HANDLED
#define IRQ_NONE
#endif

#ifndef IRQF_PROBE_SHARED
#ifdef SA_PROBEIRQ
#define IRQF_PROBE_SHARED SA_PROBEIRQ
#else
#define IRQF_PROBE_SHARED 0
#endif
#endif

#ifndef IRQF_SHARED
#define IRQF_SHARED SA_SHIRQ
#endif

#ifndef ARRAY_SIZE
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#endif

#ifndef FIELD_SIZEOF
#define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
#endif

#ifndef skb_is_gso
#ifdef NETIF_F_TSO
#define skb_is_gso _kc_skb_is_gso
static inline int _kc_skb_is_gso(const struct sk_buff *skb)
{
	return skb_shinfo(skb)->gso_size;
}
#else
#define skb_is_gso(a) 0
#endif
#endif

#ifndef resource_size_t
#define resource_size_t unsigned long
#endif

#ifdef skb_pad
#undef skb_pad
#endif
#define skb_pad(x,y) _kc_skb_pad(x, y)
int _kc_skb_pad(struct sk_buff *skb, int pad);
#ifdef skb_padto
#undef skb_padto
#endif
#define skb_padto(x,y) _kc_skb_padto(x, y)
static inline int _kc_skb_padto(struct sk_buff *skb, unsigned int len)
{
	unsigned int size = skb->len;
	if(likely(size >= len))
		return 0;
	return _kc_skb_pad(skb, len - size);
}

#ifndef DECLARE_PCI_UNMAP_ADDR
#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
	dma_addr_t ADDR_NAME
#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
	u32 LEN_NAME
#define pci_unmap_addr(PTR, ADDR_NAME) \
	((PTR)->ADDR_NAME)
#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
	(((PTR)->ADDR_NAME) = (VAL))
#define pci_unmap_len(PTR, LEN_NAME) \
	((PTR)->LEN_NAME)
#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
	(((PTR)->LEN_NAME) = (VAL))
#endif /* DECLARE_PCI_UNMAP_ADDR */
#endif /* < 2.6.18 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) )

#ifndef DIV_ROUND_UP
#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
#endif
#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0) )
#if (!((RHEL_RELEASE_CODE && \
        ((RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(4,4) && \
          RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(5,0)) || \
         (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(5,0)))) || \
       (AX_RELEASE_CODE && AX_RELEASE_CODE > AX_RELEASE_VERSION(3,0))))
typedef irqreturn_t (*irq_handler_t)(int, void*, struct pt_regs *);
#endif
#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(6,0))
#undef CONFIG_INET_LRO
#undef CONFIG_INET_LRO_MODULE
#undef CONFIG_FCOE
#undef CONFIG_FCOE_MODULE
#endif
typedef irqreturn_t (*new_handler_t)(int, void*);
static inline irqreturn_t _kc_request_irq(unsigned int irq, new_handler_t handler, unsigned long flags, const char *devname, void *dev_id)
#else /* 2.4.x */
typedef void (*irq_handler_t)(int, void*, struct pt_regs *);
typedef void (*new_handler_t)(int, void*);
static inline int _kc_request_irq(unsigned int irq, new_handler_t handler, unsigned long flags, const char *devname, void *dev_id)
#endif /* >= 2.5.x */
{
	irq_handler_t new_handler = (irq_handler_t) handler;
	return request_irq(irq, new_handler, flags, devname, dev_id);
}

#undef request_irq
#define request_irq(irq, handler, flags, devname, dev_id) _kc_request_irq((irq), (handler), (flags), (devname), (dev_id))

#define irq_handler_t new_handler_t
/* pci_restore_state and pci_save_state handles MSI/PCIE from 2.6.19 */
#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,4)))
#define PCIE_CONFIG_SPACE_LEN 256
#define PCI_CONFIG_SPACE_LEN 64
#define PCIE_LINK_STATUS 0x12
#define pci_config_space_ich8lan() do {} while(0)
#undef pci_save_state
extern int _kc_pci_save_state(struct pci_dev *);
#define pci_save_state(pdev) _kc_pci_save_state(pdev)
#undef pci_restore_state
extern void _kc_pci_restore_state(struct pci_dev *);
#define pci_restore_state(pdev) _kc_pci_restore_state(pdev)
#endif /* !(RHEL_RELEASE_CODE >= RHEL 5.4) */

#ifdef HAVE_PCI_ERS
#undef free_netdev
extern void _kc_free_netdev(struct net_device *);
#define free_netdev(netdev) _kc_free_netdev(netdev)
#endif
static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev)
{
	return 0;
}
#define pci_disable_pcie_error_reporting(dev) do {} while (0)
#define pci_cleanup_aer_uncorrect_error_status(dev) do {} while (0)

extern void *_kc_kmemdup(const void *src, size_t len, unsigned gfp);
#define kmemdup(src, len, gfp) _kc_kmemdup(src, len, gfp)
#ifndef bool
#define bool _Bool
#define true 1
#define false 0
#endif
#else /* 2.6.19 */
#include <linux/aer.h>
#include <linux/string.h>
#endif /* < 2.6.19 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20) )
#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,28) )
#undef INIT_WORK
#define INIT_WORK(_work, _func) \
do { \
	INIT_LIST_HEAD(&(_work)->entry); \
	(_work)->pending = 0; \
	(_work)->func = (void (*)(void *))_func; \
	(_work)->data = _work; \
	init_timer(&(_work)->timer); \
} while (0)
#endif

#ifndef PCI_VDEVICE
#define PCI_VDEVICE(ven, dev)        \
	PCI_VENDOR_ID_##ven, (dev),  \
	PCI_ANY_ID, PCI_ANY_ID, 0, 0
#endif

#ifndef round_jiffies
#define round_jiffies(x) x
#endif

#define csum_offset csum

#define HAVE_EARLY_VMALLOC_NODE
#define dev_to_node(dev) -1
#undef set_dev_node
/* remove compiler warning with b=b, for unused variable */
#define set_dev_node(a, b) do { (b) = (b); } while(0)

#if (!(RHEL_RELEASE_CODE && \
       (((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(4,7)) && \
         (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(5,0))) || \
        (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,6)))) && \
     !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(10,2,0)))
typedef __u16 __bitwise __sum16;
typedef __u32 __bitwise __wsum;
#endif

#if (!(RHEL_RELEASE_CODE && \
       (((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(4,7)) && \
         (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(5,0))) || \
        (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,4)))) && \
     !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(10,2,0)))
static inline __wsum csum_unfold(__sum16 n)
{
	return (__force __wsum)n;
}
#endif

#else /* < 2.6.20 */
#define HAVE_DEVICE_NUMA_NODE
#endif /* < 2.6.20 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21) )
#define to_net_dev(class) container_of(class, struct net_device, class_dev)
#define NETDEV_CLASS_DEV
#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(5,5)))
#define vlan_group_get_device(vg, id) (vg->vlan_devices[id])
#define vlan_group_set_device(vg, id, dev)		\
	do {						\
		if (vg) vg->vlan_devices[id] = dev;	\
	} while (0)
#endif /* !(RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(5,5)) */
#define pci_channel_offline(pdev) (pdev->error_state && \
	pdev->error_state != pci_channel_io_normal)
#define pci_request_selected_regions(pdev, bars, name) \
        pci_request_regions(pdev, name)
#define pci_release_selected_regions(pdev, bars) pci_release_regions(pdev);
#endif /* < 2.6.21 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22) )
#define tcp_hdr(skb) (skb->h.th)
#define tcp_hdrlen(skb) (skb->h.th->doff << 2)
#define skb_transport_offset(skb) (skb->h.raw - skb->data)
#define skb_transport_header(skb) (skb->h.raw)
#define ipv6_hdr(skb) (skb->nh.ipv6h)
#define ip_hdr(skb) (skb->nh.iph)
#define skb_network_offset(skb) (skb->nh.raw - skb->data)
#define skb_network_header(skb) (skb->nh.raw)
#define skb_tail_pointer(skb) skb->tail
#define skb_reset_tail_pointer(skb) \
	do { \
		skb->tail = skb->data; \
	} while (0)
#define skb_copy_to_linear_data(skb, from, len) \
				memcpy(skb->data, from, len)
#define skb_copy_to_linear_data_offset(skb, offset, from, len) \
				memcpy(skb->data + offset, from, len)
#define skb_network_header_len(skb) (skb->h.raw - skb->nh.raw)
#define pci_register_driver pci_module_init
#define skb_mac_header(skb) skb->mac.raw

#ifdef NETIF_F_MULTI_QUEUE
#ifndef alloc_etherdev_mq
#define alloc_etherdev_mq(_a, _b) alloc_etherdev(_a)
#endif
#endif /* NETIF_F_MULTI_QUEUE */

#ifndef ETH_FCS_LEN
#define ETH_FCS_LEN 4
#endif
#define cancel_work_sync(x) flush_scheduled_work()
#ifndef udp_hdr
#define udp_hdr _udp_hdr
static inline struct udphdr *_udp_hdr(const struct sk_buff *skb)
{
	return (struct udphdr *)skb_transport_header(skb);
}
#endif

#ifdef cpu_to_be16
#undef cpu_to_be16
#endif
#define cpu_to_be16(x) __constant_htons(x)

#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(5,1)))
enum {
	DUMP_PREFIX_NONE,
	DUMP_PREFIX_ADDRESS,
	DUMP_PREFIX_OFFSET
};
#endif /* !(RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(5,1)) */
#ifndef hex_asc
#define hex_asc(x)	"0123456789abcdef"[x]
#endif
#include <linux/ctype.h>
extern void _kc_print_hex_dump(const char *level, const char *prefix_str,
			       int prefix_type, int rowsize, int groupsize,
			       const void *buf, size_t len, bool ascii);
#define print_hex_dump(lvl, s, t, r, g, b, l, a) \
		_kc_print_hex_dump(lvl, s, t, r, g, b, l, a)
#else /* 2.6.22 */
#define ETH_TYPE_TRANS_SETS_DEV
#define HAVE_NETDEV_STATS_IN_NETDEV
#endif /* < 2.6.22 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22) )
#endif /* > 2.6.22 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23) )
#define netif_subqueue_stopped(_a, _b) 0
#ifndef PTR_ALIGN
#define PTR_ALIGN(p, a)         ((typeof(p))ALIGN((unsigned long)(p), (a)))
#endif

#ifndef CONFIG_PM_SLEEP
#define CONFIG_PM_SLEEP	CONFIG_PM
#endif

#if ( LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13) )
#define HAVE_ETHTOOL_GET_PERM_ADDR
#endif /* 2.6.14 through 2.6.22 */
#endif /* < 2.6.23 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24) )
#ifndef ETH_FLAG_LRO
#define ETH_FLAG_LRO NETIF_F_LRO
#endif

/* if GRO is supported then the napi struct must already exist */
#ifndef NETIF_F_GRO
/* NAPI API changes in 2.6.24 break everything */
struct napi_struct {
	/* used to look up the real NAPI polling routine */
	int (*poll)(struct napi_struct *, int);
	struct net_device *dev;
	int weight;
};
#endif

#ifdef NAPI
extern int __kc_adapter_clean(struct net_device *, int *);
extern struct net_device *napi_to_poll_dev(struct napi_struct *napi);
#define netif_napi_add(_netdev, _napi, _poll, _weight) \
	do { \
		struct napi_struct *__napi = (_napi); \
		struct net_device *poll_dev = napi_to_poll_dev(__napi); \
		poll_dev->poll = &(__kc_adapter_clean); \
		poll_dev->priv = (_napi); \
		poll_dev->weight = (_weight); \
		set_bit(__LINK_STATE_RX_SCHED, &poll_dev->state); \
		set_bit(__LINK_STATE_START, &poll_dev->state);\
		dev_hold(poll_dev); \
		__napi->poll = &(_poll); \
		__napi->weight = (_weight); \
		__napi->dev = (_netdev); \
	} while (0)
#define netif_napi_del(_napi) \
	do { \
		struct net_device *poll_dev = napi_to_poll_dev(_napi); \
		WARN_ON(!test_bit(__LINK_STATE_RX_SCHED, &poll_dev->state)); \
		dev_put(poll_dev); \
		memset(poll_dev, 0, sizeof(struct net_device));\
	} while (0)
#define napi_schedule_prep(_napi) \
	(netif_running((_napi)->dev) && netif_rx_schedule_prep(napi_to_poll_dev(_napi)))
#define napi_schedule(_napi) \
	do { \
		if (napi_schedule_prep(_napi)) \
			__netif_rx_schedule(napi_to_poll_dev(_napi)); \
	} while (0)
#define napi_enable(_napi) netif_poll_enable(napi_to_poll_dev(_napi))
#define napi_disable(_napi) netif_poll_disable(napi_to_poll_dev(_napi))
#define __napi_schedule(_napi) __netif_rx_schedule(napi_to_poll_dev(_napi))
#ifndef NETIF_F_GRO
#define napi_complete(_napi) netif_rx_complete(napi_to_poll_dev(_napi))
#else
#define napi_complete(_napi) \
	do { \
		napi_gro_flush(_napi); \
		netif_rx_complete(napi_to_poll_dev(_napi)); \
	} while (0)
#endif /* NETIF_F_GRO */
#else /* NAPI */
#define netif_napi_add(_netdev, _napi, _poll, _weight) \
	do { \
		struct napi_struct *__napi = _napi; \
		_netdev->poll = &(_poll); \
		_netdev->weight = (_weight); \
		__napi->poll = &(_poll); \
		__napi->weight = (_weight); \
		__napi->dev = (_netdev); \
	} while (0)
#define netif_napi_del(_a) do {} while (0)
#endif /* NAPI */

#undef dev_get_by_name
#define dev_get_by_name(_a, _b) dev_get_by_name(_b)
#define __netif_subqueue_stopped(_a, _b) netif_subqueue_stopped(_a, _b)
#ifndef DMA_BIT_MASK
#define DMA_BIT_MASK(n)	(((n) == 64) ? DMA_64BIT_MASK : ((1ULL<<(n))-1))
#endif

#ifdef NETIF_F_TSO6
#define skb_is_gso_v6 _kc_skb_is_gso_v6
static inline int _kc_skb_is_gso_v6(const struct sk_buff *skb)
{
	return skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6;
}
#endif /* NETIF_F_TSO6 */

#ifndef KERN_CONT
#define KERN_CONT	""
#endif
#else /* < 2.6.24 */
#define HAVE_ETHTOOL_GET_SSET_COUNT
#define HAVE_NETDEV_NAPI_LIST
#endif /* < 2.6.24 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE > KERNEL_VERSION(2,6,24) )
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,2,0) )
#include <linux/pm_qos_params.h>
#else /* >= 3.2.0 */
#include <linux/pm_qos.h>
#endif /* else >= 3.2.0 */
#endif /* > 2.6.24 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25) )
#define PM_QOS_CPU_DMA_LATENCY	1

#if ( LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18) )
#include <linux/latency.h>
#define PM_QOS_DEFAULT_VALUE	INFINITE_LATENCY
#define pm_qos_add_requirement(pm_qos_class, name, value) \
		set_acceptable_latency(name, value)
#define pm_qos_remove_requirement(pm_qos_class, name) \
		remove_acceptable_latency(name)
#define pm_qos_update_requirement(pm_qos_class, name, value) \
		modify_acceptable_latency(name, value)
#else
#define PM_QOS_DEFAULT_VALUE	-1
#define pm_qos_add_requirement(pm_qos_class, name, value)
#define pm_qos_remove_requirement(pm_qos_class, name)
#define pm_qos_update_requirement(pm_qos_class, name, value) { \
	if (value != PM_QOS_DEFAULT_VALUE) { \
		printk(KERN_WARNING "%s: unable to set PM QoS requirement\n", \
			pci_name(adapter->pdev)); \
	} \
}

#endif /* > 2.6.18 */

#define pci_enable_device_mem(pdev) pci_enable_device(pdev)

#ifndef DEFINE_PCI_DEVICE_TABLE
#define DEFINE_PCI_DEVICE_TABLE(_table) struct pci_device_id _table[]
#endif /* DEFINE_PCI_DEVICE_TABLE */

#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) )
#ifndef IXGBE_PROCFS
#define IXGBE_PROCFS
#endif /* IXGBE_PROCFS */
#endif /* >= 2.6.0 */


#else /* < 2.6.25 */

#ifndef IXGBE_SYSFS
#define IXGBE_SYSFS
#endif /* IXGBE_SYSFS */


#endif /* < 2.6.25 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26) )
#ifndef clamp_t
#define clamp_t(type, val, min, max) ({		\
	type __val = (val);			\
	type __min = (min);			\
	type __max = (max);			\
	__val = __val < __min ? __min : __val;	\
	__val > __max ? __max : __val; })
#endif /* clamp_t */
#ifdef NETIF_F_TSO
#ifdef NETIF_F_TSO6
#define netif_set_gso_max_size(_netdev, size) \
	do { \
		if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { \
			_netdev->features &= ~NETIF_F_TSO; \
			_netdev->features &= ~NETIF_F_TSO6; \
		} else { \
			_netdev->features |= NETIF_F_TSO; \
			_netdev->features |= NETIF_F_TSO6; \
		} \
	} while (0)
#else /* NETIF_F_TSO6 */
#define netif_set_gso_max_size(_netdev, size) \
	do { \
		if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) \
			_netdev->features &= ~NETIF_F_TSO; \
		else \
			_netdev->features |= NETIF_F_TSO; \
	} while (0)
#endif /* NETIF_F_TSO6 */
#else
#define netif_set_gso_max_size(_netdev, size) do {} while (0)
#endif /* NETIF_F_TSO */
#undef kzalloc_node
#define kzalloc_node(_size, _flags, _node) kzalloc(_size, _flags)

extern void _kc_pci_disable_link_state(struct pci_dev *dev, int state);
#define pci_disable_link_state(p, s) _kc_pci_disable_link_state(p, s)
#else /* < 2.6.26 */
#include <linux/pci-aspm.h>
#define HAVE_NETDEV_VLAN_FEATURES
#endif /* < 2.6.26 */
/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) )
static inline void _kc_ethtool_cmd_speed_set(struct ethtool_cmd *ep,
					     __u32 speed)
{
	ep->speed = (__u16)speed;
	/* ep->speed_hi = (__u16)(speed >> 16); */
}
#define ethtool_cmd_speed_set _kc_ethtool_cmd_speed_set

static inline __u32 _kc_ethtool_cmd_speed(struct ethtool_cmd *ep)
{
	/* no speed_hi before 2.6.27, and probably no need for it yet */
	return (__u32)ep->speed;
}
#define ethtool_cmd_speed _kc_ethtool_cmd_speed

#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15) )
#if ((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)) && defined(CONFIG_PM))
#define ANCIENT_PM 1
#elif ((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23)) && \
       (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)) && \
       defined(CONFIG_PM_SLEEP))
#define NEWER_PM 1
#endif
#if defined(ANCIENT_PM) || defined(NEWER_PM)
#undef device_set_wakeup_enable
#define device_set_wakeup_enable(dev, val) \
	do { \
		u16 pmc = 0; \
		int pm = pci_find_capability(adapter->pdev, PCI_CAP_ID_PM); \
		if (pm) { \
			pci_read_config_word(adapter->pdev, pm + PCI_PM_PMC, \
				&pmc); \
		} \
		(dev)->power.can_wakeup = !!(pmc >> 11); \
		(dev)->power.should_wakeup = (val && (pmc >> 11)); \
	} while (0)
#endif /* 2.6.15-2.6.22 and CONFIG_PM or 2.6.23-2.6.25 and CONFIG_PM_SLEEP */
#endif /* 2.6.15 through 2.6.27 */
#ifndef netif_napi_del
#define netif_napi_del(_a) do {} while (0)
#ifdef NAPI
#ifdef CONFIG_NETPOLL
#undef netif_napi_del
#define netif_napi_del(_a) list_del(&(_a)->dev_list);
#endif
#endif
#endif /* netif_napi_del */
#ifdef dma_mapping_error
#undef dma_mapping_error
#endif
#define dma_mapping_error(dev, dma_addr) pci_dma_mapping_error(dma_addr)

#ifdef CONFIG_NETDEVICES_MULTIQUEUE
#define HAVE_TX_MQ
#endif

#ifdef HAVE_TX_MQ
extern void _kc_netif_tx_stop_all_queues(struct net_device *);
extern void _kc_netif_tx_wake_all_queues(struct net_device *);
extern void _kc_netif_tx_start_all_queues(struct net_device *);
#define netif_tx_stop_all_queues(a) _kc_netif_tx_stop_all_queues(a)
#define netif_tx_wake_all_queues(a) _kc_netif_tx_wake_all_queues(a)
#define netif_tx_start_all_queues(a) _kc_netif_tx_start_all_queues(a)
#undef netif_stop_subqueue
#define netif_stop_subqueue(_ndev,_qi) do { \
	if (netif_is_multiqueue((_ndev))) \
		netif_stop_subqueue((_ndev), (_qi)); \
	else \
		netif_stop_queue((_ndev)); \
	} while (0)
#undef netif_start_subqueue
#define netif_start_subqueue(_ndev,_qi) do { \
	if (netif_is_multiqueue((_ndev))) \
		netif_start_subqueue((_ndev), (_qi)); \
	else \
		netif_start_queue((_ndev)); \
	} while (0)
#else /* HAVE_TX_MQ */
#define netif_tx_stop_all_queues(a) netif_stop_queue(a)
#define netif_tx_wake_all_queues(a) netif_wake_queue(a)
#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,12) )
#define netif_tx_start_all_queues(a) netif_start_queue(a)
#else
#define netif_tx_start_all_queues(a) do {} while (0)
#endif
#define netif_stop_subqueue(_ndev,_qi) netif_stop_queue((_ndev))
#define netif_start_subqueue(_ndev,_qi) netif_start_queue((_ndev))
#endif /* HAVE_TX_MQ */
#ifndef NETIF_F_MULTI_QUEUE
#define NETIF_F_MULTI_QUEUE 0
#define netif_is_multiqueue(a) 0
#define netif_wake_subqueue(a, b)
#endif /* NETIF_F_MULTI_QUEUE */

#ifndef __WARN_printf
extern void __kc_warn_slowpath(const char *file, const int line,
		const char *fmt, ...) __attribute__((format(printf, 3, 4)));
#define __WARN_printf(arg...) __kc_warn_slowpath(__FILE__, __LINE__, arg)
#endif /* __WARN_printf */

#ifndef WARN
#define WARN(condition, format...) ({						\
	int __ret_warn_on = !!(condition);				\
	if (unlikely(__ret_warn_on))					\
		__WARN_printf(format);					\
	unlikely(__ret_warn_on);					\
})
#endif /* WARN */
#else /* < 2.6.27 */
#define HAVE_TX_MQ
#define HAVE_NETDEV_SELECT_QUEUE
#endif /* < 2.6.27 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) )
#define pci_ioremap_bar(pdev, bar)	ioremap(pci_resource_start(pdev, bar), \
					        pci_resource_len(pdev, bar))
#define pci_wake_from_d3 _kc_pci_wake_from_d3
#define pci_prepare_to_sleep _kc_pci_prepare_to_sleep
extern int _kc_pci_wake_from_d3(struct pci_dev *dev, bool enable);
extern int _kc_pci_prepare_to_sleep(struct pci_dev *dev);
#define netdev_alloc_page(a) alloc_page(GFP_ATOMIC)
#ifndef __skb_queue_head_init
static inline void __kc_skb_queue_head_init(struct sk_buff_head *list)
{
	list->prev = list->next = (struct sk_buff *)list;
	list->qlen = 0;
}
#define __skb_queue_head_init(_q) __kc_skb_queue_head_init(_q)
#endif
#endif /* < 2.6.28 */

#ifndef skb_add_rx_frag
#define skb_add_rx_frag _kc_skb_add_rx_frag
extern void _kc_skb_add_rx_frag(struct sk_buff *, int, struct page *, int, int);
#endif

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29) )
#ifndef swap
#define swap(a, b) \
	do { typeof(a) __tmp = (a); (a) = (b); (b) = __tmp; } while (0)
#endif
#define pci_request_selected_regions_exclusive(pdev, bars, name) \
		pci_request_selected_regions(pdev, bars, name)
#ifndef CONFIG_NR_CPUS
#define CONFIG_NR_CPUS 1
#endif /* CONFIG_NR_CPUS */
#ifndef pcie_aspm_enabled
#define pcie_aspm_enabled()   (1)
#endif /* pcie_aspm_enabled */
#else /* < 2.6.29 */
#ifndef HAVE_NET_DEVICE_OPS
#define HAVE_NET_DEVICE_OPS
#endif
#ifdef CONFIG_DCB
#define HAVE_PFC_MODE_ENABLE
#endif /* CONFIG_DCB */
#endif /* < 2.6.29 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30) )
#define skb_rx_queue_recorded(a) false
#define skb_get_rx_queue(a) 0
#undef CONFIG_FCOE
#undef CONFIG_FCOE_MODULE
extern u16 _kc_skb_tx_hash(struct net_device *dev, struct sk_buff *skb);
#define skb_tx_hash(n, s) _kc_skb_tx_hash(n, s)
#define skb_record_rx_queue(a, b) do {} while (0)
#ifndef CONFIG_PCI_IOV
#undef pci_enable_sriov
#define pci_enable_sriov(a, b) -ENOTSUPP
#undef pci_disable_sriov
#define pci_disable_sriov(a) do {} while (0)
#endif /* CONFIG_PCI_IOV */
#ifndef pr_cont
#define pr_cont(fmt, ...) \
	printk(KERN_CONT fmt, ##__VA_ARGS__)
#endif /* pr_cont */
#else
#define HAVE_ASPM_QUIRKS
#endif /* < 2.6.30 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,31) )
#define ETH_P_1588 0x88F7
#define ETH_P_FIP  0x8914
#ifndef netdev_uc_count
#define netdev_uc_count(dev) ((dev)->uc_count)
#endif
#ifndef netdev_for_each_uc_addr
#define netdev_for_each_uc_addr(uclist, dev) \
	for (uclist = dev->uc_list; uclist; uclist = uclist->next)
#endif
#else
#ifndef HAVE_NETDEV_STORAGE_ADDRESS
#define HAVE_NETDEV_STORAGE_ADDRESS
#endif
#ifndef HAVE_NETDEV_HW_ADDR
#define HAVE_NETDEV_HW_ADDR
#endif
#ifndef HAVE_TRANS_START_IN_QUEUE
#define HAVE_TRANS_START_IN_QUEUE
#endif
#endif /* < 2.6.31 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32) )
#undef netdev_tx_t
#define netdev_tx_t int
#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
#ifndef NETIF_F_FCOE_MTU
#define NETIF_F_FCOE_MTU       (1 << 26)
#endif
#endif /* CONFIG_FCOE || CONFIG_FCOE_MODULE */

#ifndef pm_runtime_get_sync
#define pm_runtime_get_sync(dev)	do {} while (0)
#endif
#ifndef pm_runtime_put
#define pm_runtime_put(dev)		do {} while (0)
#endif
#ifndef pm_runtime_put_sync
#define pm_runtime_put_sync(dev)	do {} while (0)
#endif
#ifndef pm_runtime_resume
#define pm_runtime_resume(dev)		do {} while (0)
#endif
#ifndef pm_schedule_suspend
#define pm_schedule_suspend(dev, t)	do {} while (0)
#endif
#ifndef pm_runtime_set_suspended
#define pm_runtime_set_suspended(dev)	do {} while (0)
#endif
#ifndef pm_runtime_disable
#define pm_runtime_disable(dev)		do {} while (0)
#endif
#ifndef pm_runtime_put_noidle
#define pm_runtime_put_noidle(dev)	do {} while (0)
#endif
#ifndef pm_runtime_set_active
#define pm_runtime_set_active(dev)	do {} while (0)
#endif
#ifndef pm_runtime_enable
#define pm_runtime_enable(dev)	do {} while (0)
#endif
#ifndef pm_runtime_get_noresume
#define pm_runtime_get_noresume(dev)	do {} while (0)
#endif
#else /* < 2.6.32 */
#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
#ifndef HAVE_NETDEV_OPS_FCOE_ENABLE
#define HAVE_NETDEV_OPS_FCOE_ENABLE
#endif
#endif /* CONFIG_FCOE || CONFIG_FCOE_MODULE */
#ifdef CONFIG_DCB
#ifndef HAVE_DCBNL_OPS_GETAPP
#define HAVE_DCBNL_OPS_GETAPP
#endif
#endif /* CONFIG_DCB */
#include <linux/pm_runtime.h>
/* IOV bad DMA target work arounds require at least this kernel rev support */
#define HAVE_PCIE_TYPE
#endif /* < 2.6.32 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33) )
#ifndef pci_pcie_cap
#define pci_pcie_cap(pdev) pci_find_capability(pdev, PCI_CAP_ID_EXP)
#endif
#ifndef IPV4_FLOW
#define IPV4_FLOW 0x10
#endif /* IPV4_FLOW */
#ifndef IPV6_FLOW
#define IPV6_FLOW 0x11
#endif /* IPV6_FLOW */
/* Features back-ported to RHEL6 or SLES11 SP1 after 2.6.32 */
#if ( (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,0)) || \
      (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,1,0)) )
#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
#ifndef HAVE_NETDEV_OPS_FCOE_GETWWN
#define HAVE_NETDEV_OPS_FCOE_GETWWN
#endif
#endif /* CONFIG_FCOE || CONFIG_FCOE_MODULE */
#endif /* RHEL6 or SLES11 SP1 */
#ifndef __percpu
#define __percpu
#endif /* __percpu */
#else /* < 2.6.33 */
#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
#ifndef HAVE_NETDEV_OPS_FCOE_GETWWN
#define HAVE_NETDEV_OPS_FCOE_GETWWN
#endif
#endif /* CONFIG_FCOE || CONFIG_FCOE_MODULE */
#define HAVE_ETHTOOL_SFP_DISPLAY_PORT
#endif /* < 2.6.33 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34) )
#ifndef ETH_FLAG_NTUPLE
#define ETH_FLAG_NTUPLE NETIF_F_NTUPLE
#endif

#ifndef netdev_mc_count
#define netdev_mc_count(dev) ((dev)->mc_count)
#endif
#ifndef netdev_mc_empty
#define netdev_mc_empty(dev) (netdev_mc_count(dev) == 0)
#endif
#ifndef netdev_for_each_mc_addr
#define netdev_for_each_mc_addr(mclist, dev) \
	for (mclist = dev->mc_list; mclist; mclist = mclist->next)
#endif
#ifndef netdev_uc_count
#define netdev_uc_count(dev) ((dev)->uc.count)
#endif
#ifndef netdev_uc_empty
#define netdev_uc_empty(dev) (netdev_uc_count(dev) == 0)
#endif
#ifndef netdev_for_each_uc_addr
#define netdev_for_each_uc_addr(ha, dev) \
	list_for_each_entry(ha, &dev->uc.list, list)
#endif
#ifndef dma_set_coherent_mask
#define dma_set_coherent_mask(dev,mask) \
	pci_set_consistent_dma_mask(to_pci_dev(dev),(mask))
#endif
#ifndef pci_dev_run_wake
#define pci_dev_run_wake(pdev)	(0)
#endif

/* netdev logging taken from include/linux/netdevice.h */
#ifndef netdev_name
static inline const char *_kc_netdev_name(const struct net_device *dev)
{
	if (dev->reg_state != NETREG_REGISTERED)
		return "(unregistered net_device)";
	return dev->name;
}
#define netdev_name(netdev)	_kc_netdev_name(netdev)
#endif /* netdev_name */

#undef netdev_printk
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) )
#define netdev_printk(level, netdev, format, args...)		\
do {								\
	struct adapter_struct *kc_adapter = netdev_priv(netdev);\
	struct pci_dev *pdev = kc_adapter->pdev;		\
	printk("%s %s: " format, level, pci_name(pdev),		\
	       ##args);						\
} while(0)
#elif ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21) )
#define netdev_printk(level, netdev, format, args...)		\
do {								\
	struct adapter_struct *kc_adapter = netdev_priv(netdev);\
	struct pci_dev *pdev = kc_adapter->pdev;		\
	struct device *dev = pci_dev_to_dev(pdev);		\
	dev_printk(level, dev, "%s: " format,			\
		   netdev_name(netdev), ##args);		\
} while(0)
#else /* 2.6.21 => 2.6.34 */
#define netdev_printk(level, netdev, format, args...)		\
	dev_printk(level, (netdev)->dev.parent,			\
		   "%s: " format,				\
		   netdev_name(netdev), ##args)
#endif /* <2.6.0 <2.6.21 <2.6.34 */
#undef netdev_emerg
#define netdev_emerg(dev, format, args...)			\
	netdev_printk(KERN_EMERG, dev, format, ##args)
#undef netdev_alert
#define netdev_alert(dev, format, args...)			\
	netdev_printk(KERN_ALERT, dev, format, ##args)
#undef netdev_crit
#define netdev_crit(dev, format, args...)			\
	netdev_printk(KERN_CRIT, dev, format, ##args)
#undef netdev_err
#define netdev_err(dev, format, args...)			\
	netdev_printk(KERN_ERR, dev, format, ##args)
#undef netdev_warn
#define netdev_warn(dev, format, args...)			\
	netdev_printk(KERN_WARNING, dev, format, ##args)
#undef netdev_notice
#define netdev_notice(dev, format, args...)			\
	netdev_printk(KERN_NOTICE, dev, format, ##args)
#undef netdev_info
#define netdev_info(dev, format, args...)			\
	netdev_printk(KERN_INFO, dev, format, ##args)
#undef netdev_dbg
#if defined(DEBUG)
#define netdev_dbg(__dev, format, args...)			\
	netdev_printk(KERN_DEBUG, __dev, format, ##args)
#elif defined(CONFIG_DYNAMIC_DEBUG)
#define netdev_dbg(__dev, format, args...)			\
do {								\
	dynamic_dev_dbg((__dev)->dev.parent, "%s: " format,	\
			netdev_name(__dev), ##args);		\
} while (0)
#else /* DEBUG */
#define netdev_dbg(__dev, format, args...)			\
({								\
	if (0)							\
		netdev_printk(KERN_DEBUG, __dev, format, ##args); \
	0;							\
})
#endif /* DEBUG */

#undef netif_printk
#define netif_printk(priv, type, level, dev, fmt, args...)	\
do {								\
	if (netif_msg_##type(priv))				\
		netdev_printk(level, (dev), fmt, ##args);	\
} while (0)

#undef netif_emerg
#define netif_emerg(priv, type, dev, fmt, args...)		\
	netif_level(emerg, priv, type, dev, fmt, ##args)
#undef netif_alert
#define netif_alert(priv, type, dev, fmt, args...)		\
	netif_level(alert, priv, type, dev, fmt, ##args)
#undef netif_crit
#define netif_crit(priv, type, dev, fmt, args...)		\
	netif_level(crit, priv, type, dev, fmt, ##args)
#undef netif_err
#define netif_err(priv, type, dev, fmt, args...)		\
	netif_level(err, priv, type, dev, fmt, ##args)
#undef netif_warn
#define netif_warn(priv, type, dev, fmt, args...)		\
	netif_level(warn, priv, type, dev, fmt, ##args)
#undef netif_notice
#define netif_notice(priv, type, dev, fmt, args...)		\
	netif_level(notice, priv, type, dev, fmt, ##args)
#undef netif_info
#define netif_info(priv, type, dev, fmt, args...)		\
	netif_level(info, priv, type, dev, fmt, ##args)

#ifdef SET_SYSTEM_SLEEP_PM_OPS
#define HAVE_SYSTEM_SLEEP_PM_OPS
#endif

#ifndef for_each_set_bit
#define for_each_set_bit(bit, addr, size) \
	for ((bit) = find_first_bit((addr), (size)); \
		(bit) < (size); \
		(bit) = find_next_bit((addr), (size), (bit) + 1))
#endif /* for_each_set_bit */

#ifndef DEFINE_DMA_UNMAP_ADDR
#define DEFINE_DMA_UNMAP_ADDR DECLARE_PCI_UNMAP_ADDR
#define DEFINE_DMA_UNMAP_LEN DECLARE_PCI_UNMAP_LEN
#define dma_unmap_addr pci_unmap_addr
#define dma_unmap_addr_set pci_unmap_addr_set
#define dma_unmap_len pci_unmap_len
#define dma_unmap_len_set pci_unmap_len_set
#endif /* DEFINE_DMA_UNMAP_ADDR */
#else /* < 2.6.34 */
#define HAVE_SYSTEM_SLEEP_PM_OPS
#ifndef HAVE_SET_RX_MODE
#define HAVE_SET_RX_MODE
#endif

#endif /* < 2.6.34 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35) )
#ifndef numa_node_id
#define numa_node_id() 0
#endif
#ifdef HAVE_TX_MQ
#include <net/sch_generic.h>
#ifndef CONFIG_NETDEVICES_MULTIQUEUE
void _kc_netif_set_real_num_tx_queues(struct net_device *, unsigned int);
#define netif_set_real_num_tx_queues  _kc_netif_set_real_num_tx_queues
#else /* CONFIG_NETDEVICES_MULTI_QUEUE */
#define netif_set_real_num_tx_queues(_netdev, _count) \
	do { \
		(_netdev)->egress_subqueue_count = _count; \
	} while (0)
#endif /* CONFIG_NETDEVICES_MULTI_QUEUE */
#else
#define netif_set_real_num_tx_queues(_netdev, _count) do {} while(0)
#endif /* HAVE_TX_MQ */
#ifndef ETH_FLAG_RXHASH
#define ETH_FLAG_RXHASH (1<<28)
#endif /* ETH_FLAG_RXHASH */
#else /* < 2.6.35 */
#define HAVE_PM_QOS_REQUEST_LIST
#define HAVE_IRQ_AFFINITY_HINT
#endif /* < 2.6.35 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36) )
extern int _kc_ethtool_op_set_flags(struct net_device *, u32, u32);
#define ethtool_op_set_flags _kc_ethtool_op_set_flags
extern u32 _kc_ethtool_op_get_flags(struct net_device *);
#define ethtool_op_get_flags _kc_ethtool_op_get_flags

#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
#ifdef NET_IP_ALIGN
#undef NET_IP_ALIGN
#endif
#define NET_IP_ALIGN 0
#endif /* CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS */

#ifdef NET_SKB_PAD
#undef NET_SKB_PAD
#endif

#if (L1_CACHE_BYTES > 32)
#define NET_SKB_PAD L1_CACHE_BYTES
#else
#define NET_SKB_PAD 32
#endif

static inline struct sk_buff *_kc_netdev_alloc_skb_ip_align(struct net_device *dev,
							    unsigned int length)
{
	struct sk_buff *skb;

	skb = alloc_skb(length + NET_SKB_PAD + NET_IP_ALIGN, GFP_ATOMIC);
	if (skb) {
#if (NET_IP_ALIGN + NET_SKB_PAD)
		skb_reserve(skb, NET_IP_ALIGN + NET_SKB_PAD);
#endif
		skb->dev = dev;
	}
	return skb;
}

#ifdef netdev_alloc_skb_ip_align
#undef netdev_alloc_skb_ip_align
#endif
#define netdev_alloc_skb_ip_align(n, l) _kc_netdev_alloc_skb_ip_align(n, l)

#undef netif_level
#define netif_level(level, priv, type, dev, fmt, args...)	\
do {								\
	if (netif_msg_##type(priv))				\
		netdev_##level(dev, fmt, ##args);		\
} while (0)

#undef usleep_range
#define usleep_range(min, max)	msleep(DIV_ROUND_UP(min, 1000))

#else /* < 2.6.36 */
#define HAVE_PM_QOS_REQUEST_ACTIVE
#define HAVE_8021P_SUPPORT
#define HAVE_NDO_GET_STATS64
#endif /* < 2.6.36 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,37) )
#ifndef ETHTOOL_RXNTUPLE_ACTION_CLEAR
#define ETHTOOL_RXNTUPLE_ACTION_CLEAR (-2)
#endif
#ifndef VLAN_N_VID
#define VLAN_N_VID	VLAN_GROUP_ARRAY_LEN
#endif /* VLAN_N_VID */
#ifndef ETH_FLAG_TXVLAN
#define ETH_FLAG_TXVLAN (1 << 7)
#endif /* ETH_FLAG_TXVLAN */
#ifndef ETH_FLAG_RXVLAN
#define ETH_FLAG_RXVLAN (1 << 8)
#endif /* ETH_FLAG_RXVLAN */

static inline void _kc_skb_checksum_none_assert(struct sk_buff *skb)
{
	WARN_ON(skb->ip_summed != CHECKSUM_NONE);
}
#define skb_checksum_none_assert(skb) _kc_skb_checksum_none_assert(skb)

static inline void *_kc_vzalloc_node(unsigned long size, int node)
{
	void *addr = vmalloc_node(size, node);
	if (addr)
		memset(addr, 0, size);
	return addr;
}
#define vzalloc_node(_size, _node) _kc_vzalloc_node(_size, _node)

static inline void *_kc_vzalloc(unsigned long size)
{
	void *addr = vmalloc(size);
	if (addr)
		memset(addr, 0, size);
	return addr;
}
#define vzalloc(_size) _kc_vzalloc(_size)

#ifndef vlan_get_protocol
static inline __be16 __kc_vlan_get_protocol(const struct sk_buff *skb)
{
	if (vlan_tx_tag_present(skb) ||
	    skb->protocol != cpu_to_be16(ETH_P_8021Q))
		return skb->protocol;

	if (skb_headlen(skb) < sizeof(struct vlan_ethhdr))
		return 0;

	return ((struct vlan_ethhdr*)skb->data)->h_vlan_encapsulated_proto;
}
#define vlan_get_protocol(_skb) __kc_vlan_get_protocol(_skb)
#endif
#ifdef HAVE_HW_TIME_STAMP
#define SKBTX_HW_TSTAMP (1 << 0)
#define SKBTX_IN_PROGRESS (1 << 2)
#define SKB_SHARED_TX_IS_UNION
#endif
#if ( LINUX_VERSION_CODE > KERNEL_VERSION(2,4,18) )
#ifndef HAVE_VLAN_RX_REGISTER
#define HAVE_VLAN_RX_REGISTER
#endif
#endif /* > 2.4.18 */
#endif /* < 2.6.37 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38) )
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22) )
#define skb_checksum_start_offset(skb) skb_transport_offset(skb)
#else /* 2.6.22 -> 2.6.37 */
static inline int _kc_skb_checksum_start_offset(const struct sk_buff *skb)
{
        return skb->csum_start - skb_headroom(skb);
}
#define skb_checksum_start_offset(skb) _kc_skb_checksum_start_offset(skb)
#endif /* 2.6.22 -> 2.6.37 */
#ifdef CONFIG_DCB
#ifndef IEEE_8021QAZ_MAX_TCS
#define IEEE_8021QAZ_MAX_TCS 8
#endif
#ifndef DCB_CAP_DCBX_HOST
#define DCB_CAP_DCBX_HOST		0x01
#endif
#ifndef DCB_CAP_DCBX_LLD_MANAGED
#define DCB_CAP_DCBX_LLD_MANAGED	0x02
#endif
#ifndef DCB_CAP_DCBX_VER_CEE
#define DCB_CAP_DCBX_VER_CEE		0x04
#endif
#ifndef DCB_CAP_DCBX_VER_IEEE
#define DCB_CAP_DCBX_VER_IEEE		0x08
#endif
#ifndef DCB_CAP_DCBX_STATIC
#define DCB_CAP_DCBX_STATIC		0x10
#endif
#endif /* CONFIG_DCB */
#else /* < 2.6.38 */
#endif /* < 2.6.38 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39) )
#ifndef skb_queue_reverse_walk_safe
#define skb_queue_reverse_walk_safe(queue, skb, tmp)				\
		for (skb = (queue)->prev, tmp = skb->prev;			\
		     skb != (struct sk_buff *)(queue);				\
		     skb = tmp, tmp = skb->prev)
#endif
#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(6,0)))
extern u8 _kc_netdev_get_num_tc(struct net_device *dev);
#define netdev_get_num_tc(dev) _kc_netdev_get_num_tc(dev)
extern u8 _kc_netdev_get_prio_tc_map(struct net_device *dev, u8 up);
#define netdev_get_prio_tc_map(dev, up) _kc_netdev_get_prio_tc_map(dev, up)
#define netdev_set_prio_tc_map(dev, up, tc) do {} while (0)
#else /* RHEL6.1 or greater */
#ifndef HAVE_MQPRIO
#define HAVE_MQPRIO
#endif /* HAVE_MQPRIO */
#ifdef CONFIG_DCB
#ifndef HAVE_DCBNL_IEEE
#define HAVE_DCBNL_IEEE
#ifndef IEEE_8021QAZ_TSA_STRICT
#define IEEE_8021QAZ_TSA_STRICT		0
#endif
#ifndef IEEE_8021QAZ_TSA_ETS
#define IEEE_8021QAZ_TSA_ETS		2
#endif
#ifndef IEEE_8021QAZ_APP_SEL_ETHERTYPE
#define IEEE_8021QAZ_APP_SEL_ETHERTYPE	1
#endif
#endif
#endif /* CONFIG_DCB */
#endif /* !(RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(6,0)) */
#else /* < 2.6.39 */
#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
#ifndef HAVE_NETDEV_OPS_FCOE_DDP_TARGET
#define HAVE_NETDEV_OPS_FCOE_DDP_TARGET
#endif
#endif /* CONFIG_FCOE || CONFIG_FCOE_MODULE */
#ifndef HAVE_MQPRIO
#define HAVE_MQPRIO
#endif
#ifndef HAVE_SETUP_TC
#define HAVE_SETUP_TC
#endif
#ifdef CONFIG_DCB
#ifndef HAVE_DCBNL_IEEE
#define HAVE_DCBNL_IEEE
#endif
#endif /* CONFIG_DCB */
#ifndef HAVE_NDO_SET_FEATURES
#define HAVE_NDO_SET_FEATURES
#endif
#endif /* < 2.6.39 */

/*****************************************************************************/
/* use < 2.6.40 because of a Fedora 15 kernel update where they
 * updated the kernel version to 2.6.40.x and they back-ported 3.0 features
 * like set_phys_id for ethtool.
 */
#undef ETHTOOL_GRXRINGS
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,40) )
#ifdef ETHTOOL_GRXRINGS
#ifndef FLOW_EXT
#define	FLOW_EXT	0x80000000
union _kc_ethtool_flow_union {
	struct ethtool_tcpip4_spec		tcp_ip4_spec;
	struct ethtool_usrip4_spec		usr_ip4_spec;
	__u8					hdata[60];
};
struct _kc_ethtool_flow_ext {
	__be16	vlan_etype;
	__be16	vlan_tci;
	__be32	data[2];
};
struct _kc_ethtool_rx_flow_spec {
	__u32		flow_type;
	union _kc_ethtool_flow_union h_u;
	struct _kc_ethtool_flow_ext h_ext;
	union _kc_ethtool_flow_union m_u;
	struct _kc_ethtool_flow_ext m_ext;
	__u64		ring_cookie;
	__u32		location;
};
#define ethtool_rx_flow_spec _kc_ethtool_rx_flow_spec
#endif /* FLOW_EXT */
#endif

#define pci_disable_link_state_locked pci_disable_link_state

#ifndef PCI_LTR_VALUE_MASK
#define  PCI_LTR_VALUE_MASK	0x000003ff
#endif
#ifndef PCI_LTR_SCALE_MASK
#define  PCI_LTR_SCALE_MASK	0x00001c00
#endif
#ifndef PCI_LTR_SCALE_SHIFT
#define  PCI_LTR_SCALE_SHIFT	10
#endif

#else /* < 2.6.40 */
#define HAVE_ETHTOOL_SET_PHYS_ID
#endif /* < 2.6.40 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0) )
#ifndef __netdev_alloc_skb_ip_align
#define __netdev_alloc_skb_ip_align(d,l,_g) netdev_alloc_skb_ip_align(d,l)
#endif /* __netdev_alloc_skb_ip_align */
#define dcb_ieee_setapp(dev, app) dcb_setapp(dev, app)
#define dcb_ieee_delapp(dev, app) 0
#define dcb_ieee_getapp_mask(dev, app) (1 << app->priority)
#else /* < 3.1.0 */
#ifndef HAVE_DCBNL_IEEE_DELAPP
#define HAVE_DCBNL_IEEE_DELAPP
#endif
#endif /* < 3.1.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,2,0) )
#ifdef ETHTOOL_GRXRINGS
#define HAVE_ETHTOOL_GET_RXNFC_VOID_RULE_LOCS
#endif /* ETHTOOL_GRXRINGS */

#ifndef skb_frag_size
#define skb_frag_size(frag)	_kc_skb_frag_size(frag)
static inline unsigned int _kc_skb_frag_size(const skb_frag_t *frag)
{
	return frag->size;
}
#endif /* skb_frag_size */

#ifndef skb_frag_size_sub
#define skb_frag_size_sub(frag, delta)	_kc_skb_frag_size_sub(frag, delta)
static inline void _kc_skb_frag_size_sub(skb_frag_t *frag, int delta)
{
	frag->size -= delta;
}
#endif /* skb_frag_size_sub */

#ifndef skb_frag_page
#define skb_frag_page(frag)	_kc_skb_frag_page(frag)
static inline struct page *_kc_skb_frag_page(const skb_frag_t *frag)
{
	return frag->page;
}
#endif /* skb_frag_page */

#ifndef skb_frag_address
#define skb_frag_address(frag)	_kc_skb_frag_address(frag)
static inline void *_kc_skb_frag_address(const skb_frag_t *frag)
{
	return page_address(skb_frag_page(frag)) + frag->page_offset;
}
#endif /* skb_frag_address */

#ifndef skb_frag_dma_map
#define skb_frag_dma_map(dev,frag,offset,size,dir) \
		_kc_skb_frag_dma_map(dev,frag,offset,size,dir)
static inline dma_addr_t _kc_skb_frag_dma_map(struct device *dev,
					      const skb_frag_t *frag,
					      size_t offset, size_t size,
					      enum dma_data_direction dir)
{
	return dma_map_page(dev, skb_frag_page(frag),
			    frag->page_offset + offset, size, dir);
}
#endif /* skb_frag_dma_map */

#ifndef __skb_frag_unref
#define __skb_frag_unref(frag) __kc_skb_frag_unref(frag)
static inline void __kc_skb_frag_unref(skb_frag_t *frag)
{
	put_page(skb_frag_page(frag));
}
#endif /* __skb_frag_unref */
#else /* < 3.2.0 */
#ifndef HAVE_PCI_DEV_FLAGS_ASSIGNED
#define HAVE_PCI_DEV_FLAGS_ASSIGNED
#define HAVE_VF_SPOOFCHK_CONFIGURE
#endif
#endif /* < 3.2.0 */

#if (RHEL_RELEASE_CODE && \
	(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,2)) && \
	(RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)))
#undef ixgbe_get_netdev_tc_txq
#define ixgbe_get_netdev_tc_txq(dev, tc) (&netdev_extended(dev)->qos_data.tc_to_txq[tc])
#endif

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0) )
typedef u32 kni_netdev_features_t;
#else /* ! < 3.3.0 */
typedef netdev_features_t kni_netdev_features_t;
#define HAVE_INT_NDO_VLAN_RX_ADD_VID
#ifdef ETHTOOL_SRXNTUPLE
#undef ETHTOOL_SRXNTUPLE
#endif
#endif /* < 3.3.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0) )
#ifndef NETIF_F_RXFCS
#define NETIF_F_RXFCS	0
#endif /* NETIF_F_RXFCS */
#ifndef NETIF_F_RXALL
#define NETIF_F_RXALL	0
#endif /* NETIF_F_RXALL */

#define NUMTCS_RETURNS_U8


#endif /* < 3.4.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0) )
static inline bool __kc_ether_addr_equal(const u8 *addr1, const u8 *addr2)
{
	return !compare_ether_addr(addr1, addr2);
}
#define ether_addr_equal(_addr1, _addr2) __kc_ether_addr_equal((_addr1),(_addr2))
#else
#define HAVE_FDB_OPS
#endif /* < 3.5.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0) )
#define NETIF_F_HW_VLAN_TX     NETIF_F_HW_VLAN_CTAG_TX
#define NETIF_F_HW_VLAN_RX     NETIF_F_HW_VLAN_CTAG_RX
#define NETIF_F_HW_VLAN_FILTER NETIF_F_HW_VLAN_CTAG_FILTER
#endif /* >= 3.10.0 */

#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0) )
#ifdef CONFIG_PCI_IOV
extern int __kc_pci_vfs_assigned(struct pci_dev *dev);
#else
static inline int __kc_pci_vfs_assigned(struct pci_dev *dev)
{
        return 0;
}
#endif
#define pci_vfs_assigned(dev) __kc_pci_vfs_assigned(dev)

#endif

#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(3,16,0) )
#define SET_ETHTOOL_OPS(netdev, ops) ((netdev)->ethtool_ops = (ops))
#endif /* >= 3.16.0 */

/*
 * vlan_tx_tag_* macros renamed to skb_vlan_tag_* (Linux commit: df8a39defad4)
 * For older kernels backported this commit, need to use renamed functions.
 * This fix is specific to RedHat/CentOS kernels.
 */
#if (defined(RHEL_RELEASE_CODE) && \
	RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6, 8) && \
	LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 34))
#define vlan_tx_tag_get skb_vlan_tag_get
#define vlan_tx_tag_present skb_vlan_tag_present
#endif

#endif /* _KCOMPAT_H_ */