OpenCloudOS-Kernel/drivers/thirdparty/iavf/kcompat.h

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2013, Intel Corporation. */

#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/io.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/if_vlan.h>
#include <linux/in.h>
#include <linux/if_link.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/ip.h>
#include <linux/ipv6.h>
#include <linux/list.h>
#include <linux/mii.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/pci.h>
#include <linux/sched.h>
#include <linux/skbuff.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/tcp.h>
#include <linux/types.h>
#include <linux/udp.h>
#include <linux/vmalloc.h>

#ifndef GCC_VERSION
#define GCC_VERSION (__GNUC__ * 10000		\
		     + __GNUC_MINOR__ * 100	\
		     + __GNUC_PATCHLEVEL__)
#endif /* GCC_VERSION */

/* Backport macros for controlling GCC diagnostics */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(4,18,0) )

/* Compilers before gcc-4.6 do not understand "#pragma GCC diagnostic push" */
#if GCC_VERSION >= 40600
#define __diag_str1(s)		#s
#define __diag_str(s)		__diag_str1(s)
#define __diag(s)		_Pragma(__diag_str(GCC diagnostic s))
#else
#define __diag(s)
#endif /* GCC_VERSION >= 4.6 */
#define __diag_push()	__diag(push)
#define __diag_pop()	__diag(pop)
#endif /* LINUX_VERSION < 4.18.0 */

#ifndef NSEC_PER_MSEC
#define NSEC_PER_MSEC 1000000L
#endif
#include <net/ipv6.h>
/* UTS_RELEASE is in a different header starting in kernel 2.6.18 */
#ifndef UTS_RELEASE
/* utsrelease.h changed locations in 2.6.33 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33) )
#include <linux/utsrelease.h>
#else
#include <generated/utsrelease.h>
#endif
#endif

/* NAPI enable/disable flags here */

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

/* Dynamic LTR and deeper C-State support disable/enable */

/* packet split disable/enable */
#ifdef DISABLE_PACKET_SPLIT
#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

#ifndef BIT
#define BIT(nr)         (1UL << (nr))
#endif

#undef __always_unused
#define __always_unused __attribute__((__unused__))

#undef __maybe_unused
#define __maybe_unused __attribute__((__unused__))

/* 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 uninitialized_var
#define uninitialized_var(x) x = x
#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 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 BIT(15)
#endif

#ifndef NETIF_F_NTUPLE
#define NETIF_F_NTUPLE BIT(27)
#endif

#ifndef NETIF_F_ALL_FCOE
#define NETIF_F_ALL_FCOE	(NETIF_F_FCOE_CRC | NETIF_F_FCOE_MTU | \
				 NETIF_F_FSO)
#endif

#ifndef IPPROTO_SCTP
#define IPPROTO_SCTP 132
#endif

#ifndef IPPROTO_UDPLITE
#define IPPROTO_UDPLITE 136
#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) ({0;})
#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 _LINUX_RANDOM_H
#include <linux/random.h>
#endif

#ifndef BITS_PER_TYPE
#define BITS_PER_TYPE(type) (sizeof(type) * BITS_PER_BYTE)
#endif

#ifndef BITS_TO_LONGS
#define BITS_TO_LONGS(bits) (((bits)+BITS_PER_LONG-1)/BITS_PER_LONG)
#endif

#ifndef DECLARE_BITMAP
#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

#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

#ifdef IS_ENABLED
#undef IS_ENABLED
#undef __ARG_PLACEHOLDER_1
#undef config_enabled
#undef _config_enabled
#undef __config_enabled
#undef ___config_enabled
#endif

#define __ARG_PLACEHOLDER_1 0,
#define config_enabled(cfg) _config_enabled(cfg)
#ifdef __CHECKER__
/* cppcheck-suppress preprocessorErrorDirective */
#endif /* __CHECKER__ */
#define _config_enabled(value) __config_enabled(__ARG_PLACEHOLDER_##value)
#define __config_enabled(arg1_or_junk) ___config_enabled(arg1_or_junk 1, 0)
#define ___config_enabled(__ignored, val, ...) val

#define IS_ENABLED(option) \
	(config_enabled(option) || config_enabled(option##_MODULE))

#if !defined(NETIF_F_HW_VLAN_TX) && !defined(NETIF_F_HW_VLAN_CTAG_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
#define vlan_tx_tag_present(_skb) 0
#define vlan_tx_tag_get(_skb) 0
#endif /* NETIF_F_HW_VLAN_TX && NETIF_F_HW_VLAN_CTAG_TX */

#ifndef VLAN_PRIO_SHIFT
#define VLAN_PRIO_SHIFT 13
#endif

#ifndef PCI_EXP_LNKSTA_CLS_2_5GB
#define PCI_EXP_LNKSTA_CLS_2_5GB 0x0001
#endif

#ifndef PCI_EXP_LNKSTA_CLS_5_0GB
#define PCI_EXP_LNKSTA_CLS_5_0GB 0x0002
#endif

#ifndef PCI_EXP_LNKSTA_CLS_8_0GB
#define PCI_EXP_LNKSTA_CLS_8_0GB 0x0003
#endif

#ifndef PCI_EXP_LNKSTA_NLW_X1
#define PCI_EXP_LNKSTA_NLW_X1 0x0010
#endif

#ifndef PCI_EXP_LNKSTA_NLW_X2
#define PCI_EXP_LNKSTA_NLW_X2 0x0020
#endif

#ifndef PCI_EXP_LNKSTA_NLW_X4
#define PCI_EXP_LNKSTA_NLW_X4 0x0040
#endif

#ifndef PCI_EXP_LNKSTA_NLW_X8
#define PCI_EXP_LNKSTA_NLW_X8 0x0080
#endif

#ifndef __GFP_COLD
#define __GFP_COLD 0
#endif

#ifndef __GFP_COMP
#define __GFP_COMP 0
#endif

#ifndef IP_OFFSET
#define IP_OFFSET 0x1FFF /* "Fragment Offset" part */
#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	= BIT(0),
	ETH_TEST_FL_FAILED	= BIT(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 WAKE_FILTER
#define WAKE_FILTER	BIT(7)
#endif

#ifndef SPEED_2500
#define SPEED_2500 2500
#endif
#ifndef SPEED_5000
#define SPEED_5000 5000
#endif
#ifndef SPEED_14000
#define SPEED_14000 14000
#endif
#ifndef SPEED_25000
#define SPEED_25000 25000
#endif
#ifndef SPEED_50000
#define SPEED_50000 50000
#endif
#ifndef SPEED_56000
#define SPEED_56000 56000
#endif
#ifndef SPEED_100000
#define SPEED_100000 100000
#endif

#ifndef RHEL_RELEASE_VERSION
#define RHEL_RELEASE_VERSION(a,b) (((a) << 8) + (b))
#endif
#ifndef AX_RELEASE_VERSION
#define AX_RELEASE_VERSION(a,b) (((a) << 8) + (b))
#endif

#ifndef AX_RELEASE_CODE
#define AX_RELEASE_CODE 0
#endif

#if (AX_RELEASE_CODE && AX_RELEASE_CODE == AX_RELEASE_VERSION(3,0))
#define RHEL_RELEASE_CODE RHEL_RELEASE_VERSION(5,0)
#elif (AX_RELEASE_CODE && AX_RELEASE_CODE == AX_RELEASE_VERSION(3,1))
#define RHEL_RELEASE_CODE RHEL_RELEASE_VERSION(5,1)
#elif (AX_RELEASE_CODE && AX_RELEASE_CODE == AX_RELEASE_VERSION(3,2))
#define RHEL_RELEASE_CODE RHEL_RELEASE_VERSION(5,3)
#endif

#ifndef RHEL_RELEASE_CODE
/* NOTE: RHEL_RELEASE_* introduced in RHEL4.5 */
#define RHEL_RELEASE_CODE 0
#endif

/* RHEL 7 didn't backport the parameter change in
 * create_singlethread_workqueue.
 * If/when RH corrects this we will want to tighten up the version check.
 */
#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,0))
#undef create_singlethread_workqueue
#define create_singlethread_workqueue(name)	\
	alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, name)
#endif

/* Ubuntu Release ABI is the 4th digit of their kernel version. You can find
 * it in /usr/src/linux/$(uname -r)/include/generated/utsrelease.h for new
 * enough versions of Ubuntu. Otherwise you can simply see it in the output of
 * uname as the 4th digit of the kernel. The UTS_UBUNTU_RELEASE_ABI is not in
 * the linux-source package, but in the linux-headers package. It begins to
 * appear in later releases of 14.04 and 14.10.
 *
 * Ex:
 * <Ubuntu 14.04.1>
 *  $uname -r
 *  3.13.0-45-generic
 * ABI is 45
 *
 * <Ubuntu 14.10>
 *  $uname -r
 *  3.16.0-23-generic
 * ABI is 23
 */
#ifndef UTS_UBUNTU_RELEASE_ABI
#define UTS_UBUNTU_RELEASE_ABI 0
#define UBUNTU_VERSION_CODE 0
#else
/* Ubuntu does not provide actual release version macro, so we use the kernel
 * version plus the ABI to generate a unique version code specific to Ubuntu.
 * In addition, we mask the lower 8 bits of LINUX_VERSION_CODE in order to
 * ignore differences in sublevel which are not important since we have the
 * ABI value. Otherwise, it becomes impossible to correlate ABI to version for
 * ordering checks.
 *
 * This also lets us store an ABI value up to 65535, since it can take the
 * space that would use the lower byte of the Linux version code.
 */
#define UBUNTU_VERSION_CODE (((~0xFF & LINUX_VERSION_CODE) << 8) + \
			     UTS_UBUNTU_RELEASE_ABI)

#if UTS_UBUNTU_RELEASE_ABI > 65535
#error UTS_UBUNTU_RELEASE_ABI is larger than 65535...
#endif /* UTS_UBUNTU_RELEASE_ABI > 65535 */

#if ( LINUX_VERSION_CODE <= KERNEL_VERSION(3,0,0) )
/* Our version code scheme does not make sense for non 3.x or newer kernels,
 * and we have no support in kcompat for this scenario. Thus, treat this as a
 * non-Ubuntu kernel. Possibly might be better to error here.
 */
#define UTS_UBUNTU_RELEASE_ABI 0
#define UBUNTU_VERSION_CODE 0
#endif /* <= 3.0.0 */
#endif /* !UTS_UBUNTU_RELEASE_ABI */

/* We ignore the 3rd digit since we want to give precedence to the additional
 * ABI value provided by Ubuntu.
 */
#define UBUNTU_VERSION(a,b,c,d) (((a) << 24) + ((b) << 16) + (d))

/* SLE_VERSION is used to generate a 3-digit encoding that can order SLE
 * kernels based on their major release, service pack, and a possible
 * maintenance release.
 */
#define SLE_VERSION(a,b,c)	(((a) << 16) + ((b) << 8) + (c))

/* The SLE_LOCALVERSION_CODE comes from a 3-digit code added as part of the
 * Linux kernel version. It is extracted by the driver Makefile. This macro is
 * used to generate codes for making comparisons below.
 */
#define SLE_LOCALVERSION(a,b,c)	(((a) << 16) + ((b) << 8) + (c))

#ifdef CONFIG_SUSE_KERNEL
/* Starting since at least SLE 12sp4 and SLE 15, the SUSE kernels have
 * provided CONFIG_SUSE_VERSION, CONFIG_SUSE_PATCHLEVEL and
 * CONFIG_SUSE_AUXRELEASE. Use these to generate SLE_VERSION if available.
 * Only fall back to the manual table otherwise. We expect all future versions
 * of SLE kernels to include these values, so the table will remain only for
 * the older releases.
 */
#ifdef CONFIG_SUSE_VERSION
#ifndef CONFIG_SUSE_PATCHLEVEL
#error "CONFIG_SUSE_VERSION exists but CONFIG_SUSE_PATCHLEVEL is missing"
#endif
#ifndef CONFIG_SUSE_AUXRELEASE
#error "CONFIG_SUSE_VERSION exists but CONFIG_SUSE_AUXRELEASE is missing"
#endif
#define SLE_VERSION_CODE SLE_VERSION(CONFIG_SUSE_VERSION, CONFIG_SUSE_PATCHLEVEL, CONFIG_SUSE_AUXRELEASE)
#else
/* If we do not have the CONFIG_SUSE_VERSION configuration values, fall back
 * to the following table for older releases.
 */
#if ( LINUX_VERSION_CODE == KERNEL_VERSION(2,6,27) )
/* SLES11 GA is 2.6.27 based */
#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)
#elif ( LINUX_VERSION_CODE == KERNEL_VERSION(3,0,13) )
/* SLES11 SP2 GA is 3.0.13-0.27 */
#define SLE_VERSION_CODE SLE_VERSION(11,2,0)
#elif ((LINUX_VERSION_CODE == KERNEL_VERSION(3,0,76)))
/* SLES11 SP3 GA is 3.0.76-0.11 */
#define SLE_VERSION_CODE SLE_VERSION(11,3,0)
#elif (LINUX_VERSION_CODE == KERNEL_VERSION(3,0,101))
  #if (SLE_LOCALVERSION_CODE < SLE_LOCALVERSION(0,8,0))
  /* some SLES11sp2 update kernels up to 3.0.101-0.7.x */
  #define SLE_VERSION_CODE SLE_VERSION(11,2,0)
  #elif (SLE_LOCALVERSION_CODE < SLE_LOCALVERSION(63,0,0))
  /* most SLES11sp3 update kernels */
  #define SLE_VERSION_CODE SLE_VERSION(11,3,0)
  #else
  /* SLES11 SP4 GA (3.0.101-63) and update kernels 3.0.101-63+ */
  #define SLE_VERSION_CODE SLE_VERSION(11,4,0)
  #endif
#elif (LINUX_VERSION_CODE == KERNEL_VERSION(3,12,28))
/* SLES12 GA is 3.12.28-4
 * kernel updates 3.12.xx-<33 through 52>[.yy] */
#define SLE_VERSION_CODE SLE_VERSION(12,0,0)
#elif (LINUX_VERSION_CODE == KERNEL_VERSION(3,12,49))
/* SLES12 SP1 GA is 3.12.49-11
 * updates 3.12.xx-60.yy where xx={51..} */
#define SLE_VERSION_CODE SLE_VERSION(12,1,0)
#elif ((LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,21) && \
       (LINUX_VERSION_CODE <= KERNEL_VERSION(4,4,59))) || \
       (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,74) && \
        LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) && \
        SLE_LOCALVERSION_CODE >= KERNEL_VERSION(92,0,0) && \
        SLE_LOCALVERSION_CODE <  KERNEL_VERSION(93,0,0)))
/* SLES12 SP2 GA is 4.4.21-69.
 * SLES12 SP2 updates before SLES12 SP3 are: 4.4.{21,38,49,59}
 * SLES12 SP2 updates after SLES12 SP3 are: 4.4.{74,90,103,114,120}
 * but they all use a SLE_LOCALVERSION_CODE matching 92.nn.y */
#define SLE_VERSION_CODE SLE_VERSION(12,2,0)
#elif ((LINUX_VERSION_CODE == KERNEL_VERSION(4,4,73) || \
        LINUX_VERSION_CODE == KERNEL_VERSION(4,4,82) || \
        LINUX_VERSION_CODE == KERNEL_VERSION(4,4,92)) || \
       (LINUX_VERSION_CODE == KERNEL_VERSION(4,4,103) && \
       (SLE_LOCALVERSION_CODE == KERNEL_VERSION(6,33,0) || \
        SLE_LOCALVERSION_CODE == KERNEL_VERSION(6,38,0))) || \
       (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,114) && \
        LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) && \
        SLE_LOCALVERSION_CODE >= KERNEL_VERSION(94,0,0) && \
        SLE_LOCALVERSION_CODE <  KERNEL_VERSION(95,0,0)) )
/* SLES12 SP3 GM is 4.4.73-5 and update kernels are 4.4.82-6.3.
 * SLES12 SP3 updates not conflicting with SP2 are: 4.4.{82,92}
 * SLES12 SP3 updates conflicting with SP2 are:
 *   - 4.4.103-6.33.1, 4.4.103-6.38.1
 *   - 4.4.{114,120}-94.nn.y */
#define SLE_VERSION_CODE SLE_VERSION(12,3,0)
#else
#error "This looks like a SUSE kernel, but it has an unrecognized local version code."
#endif /* LINUX_VERSION_CODE == KERNEL_VERSION(x,y,z) */
#endif /* !CONFIG_SUSE_VERSION */
#endif /* CONFIG_SUSE_KERNEL */
#ifndef SLE_VERSION_CODE
#define SLE_VERSION_CODE 0
#endif /* SLE_VERSION_CODE */
#ifndef SLE_LOCALVERSION_CODE
#define SLE_LOCALVERSION_CODE 0
#endif /* SLE_LOCALVERSION_CODE */

/*
 * Include the definitions file for HAVE/NEED flags for the standard upstream
 * kernels.
 *
 * Then, based on the distribution we detect, load the distribution specific
 * definitions file that customizes the definitions for the target
 * distribution.
 */
#include "kcompat_std_defs.h"

#ifdef CONFIG_SUSE_KERNEL
#include "kcompat_sles_defs.h"
#elif UBUNTU_VERSION_CODE
#include "kcompat_ubuntu_defs.h"
#elif RHEL_RELEASE_CODE
#include "kcompat_rhel_defs.h"
#endif

/*
 * ADQ depends on __TC_MQPRIO_MODE_MAX and related kernel code
 * added around 4.15. Some distributions (e.g. Oracle Linux 7.7)
 * have done a partial back-port of that to their kernels based
 * on older mainline kernels that did not include all the necessary
 * kernel enablement to support ADQ.
 * Undefine __TC_MQPRIO_MODE_MAX for all OSV distributions with
 * kernels based on mainline kernels older than 4.15 except for
 * RHEL, SLES and Ubuntu which are known to have good back-ports.
 */
#if (!RHEL_RELEASE_CODE && !SLE_VERSION_CODE && !UBUNTU_VERSION_CODE)
  #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,15,0))
  #undef __TC_MQPRIO_MODE_MAX
  #endif /*  LINUX_VERSION_CODE == KERNEL_VERSION(4,15,0) */
#endif /* if (NOT RHEL && NOT SLES && NOT UBUNTU) */

#ifdef __KLOCWORK__
/* The following are not compiled into the binary driver; they are here
 * only to tune Klocwork scans to workaround false-positive issues.
 */
#ifdef ARRAY_SIZE
#undef ARRAY_SIZE
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#endif

#define memcpy(dest, src, len)	memcpy_s(dest, len, src, len)
#define memset(dest, ch, len)	memset_s(dest, len, ch, len)

static inline int _kc_test_and_clear_bit(int nr, volatile unsigned long *addr)
{
	unsigned long mask = BIT_MASK(nr);
	unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
	unsigned long old;
	unsigned long flags = 0;

	_atomic_spin_lock_irqsave(p, flags);
	old = *p;
	*p = old & ~mask;
	_atomic_spin_unlock_irqrestore(p, flags);

	return (old & mask) != 0;
}
#define test_and_clear_bit(nr, addr) _kc_test_and_clear_bit(nr, addr)

static inline int _kc_test_and_set_bit(int nr, volatile unsigned long *addr)
{
	unsigned long mask = BIT_MASK(nr);
	unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
	unsigned long old;
	unsigned long flags = 0;

	_atomic_spin_lock_irqsave(p, flags);
	old = *p;
	*p = old | mask;
	_atomic_spin_unlock_irqrestore(p, flags);

	return (old & mask) != 0;
}
#define test_and_set_bit(nr, addr) _kc_test_and_set_bit(nr, addr)

#ifdef CONFIG_DYNAMIC_DEBUG
#undef dev_dbg
#define dev_dbg(dev, format, arg...) dev_printk(KERN_DEBUG, dev, format, ##arg)
#undef pr_debug
#define pr_debug(format, arg...) printk(KERN_DEBUG format, ##arg)
#endif /* CONFIG_DYNAMIC_DEBUG */

#undef hlist_for_each_entry_safe
#define hlist_for_each_entry_safe(pos, n, head, member)			     \
	for (n = NULL, pos = hlist_entry_safe((head)->first, typeof(*(pos)), \
					      member);			     \
	     pos;							     \
	     pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))

#ifdef uninitialized_var
#undef uninitialized_var
#define uninitialized_var(x) x = *(&(x))
#endif

#ifdef WRITE_ONCE
#undef WRITE_ONCE
#define WRITE_ONCE(x, val)	((x) = (val))
#endif /* WRITE_ONCE */

#ifdef wait_event_interruptible_timeout
#undef wait_event_interruptible_timeout
#define wait_event_interruptible_timeout(wq_head, condition, timeout) ({	\
	long ret;								\
	if ((condition))							\
		ret = timeout;							\
	else									\
		ret = 0;							\
	ret;									\
})
#endif /* wait_event_interruptible_timeout */

#ifdef max_t
#undef max_t
#define max_t(type, x, y) ({							\
type __x = (x);								\
type __y = (y);								\
__x > __y ? __x : __y;							\
})
#endif /* max_t */

#ifdef min_t
#undef min_t
#define min_t(type, x, y) ({							\
type __x = (x);								\
type __y = (y);								\
__x < __y ? __x : __y;							\
})
#endif /* min_t */
#endif /* __KLOCWORK__ */

/* Older versions of GCC will trigger -Wformat-nonliteral warnings for const
 * char * strings. Unfortunately, the implementation of do_trace_printk does
 * this, in order to add a storage attribute to the memory. This was fixed in
 * GCC 5.1, but we still use older distributions built with GCC 4.x.
 *
 * The string pointer is only passed as a const char * to the __trace_bprintk
 * function. Since that function has the __printf attribute, it will trigger
 * the warnings. We can't remove the attribute, so instead we'll use the
 * __diag macro to disable -Wformat-nonliteral around the call to
 * __trace_bprintk.
 */
#if GCC_VERSION < 50100
#define __trace_bprintk(ip, fmt, args...) ({		\
	int err;					\
	__diag_push();					\
	__diag(ignored "-Wformat-nonliteral");		\
	err = __trace_bprintk(ip, fmt, ##args);		\
	__diag_pop();					\
	err;						\
})
#endif /* GCC_VERSION < 5.1.0 */

/* Newer kernels removed <linux/pci-aspm.h> */
#if ((LINUX_VERSION_CODE < KERNEL_VERSION(5,4,0)) && \
     (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,3)) && \
     !(SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(15,3,0)))))
#define HAVE_PCI_ASPM_H
#endif

/*****************************************************************************/
/* 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
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
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
void _kc_pci_release_regions(struct pci_dev *pdev);
#endif

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

#ifndef alloc_etherdev
#define alloc_etherdev _kc_alloc_etherdev
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
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
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
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
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) )
int _kc_snprintf(char * buf, size_t size, const char *fmt, ...);
#define snprintf(buf, size, fmt, args...) _kc_snprintf(buf, size, fmt, ##args)
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 */
int snprintf(char * buf, size_t size, const char *fmt, ...);
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
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
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
#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)

#ifndef SUPPORTED_10000baseT_Full
#define SUPPORTED_10000baseT_Full	BIT(12)
#endif
#ifndef ADVERTISED_10000baseT_Full
#define ADVERTISED_10000baseT_Full	BIT(12)
#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 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,27) )
#define __user
#endif /* < 2.4.27 */

/*****************************************************************************/
/* 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/modifed 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)
#define dev_notice(dev, fmt, args...)            \
	pdev_printk(KERN_NOTICE, to_pci_dev(dev), fmt, ## args)
#define dev_dbg(dev, fmt, args...) \
	pdev_printk(KERN_DEBUG, 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_map_sg(dev, sg, nents, dir) \
	pci_map_sg(to_pci_dev(dev), (sg), (nents), (dir)
#define dma_unmap_sg(dev, sg, nents, dir) \
	pci_unmap_sg(to_pci_dev(dev), (sg), (nents), (dir)

#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;
}

#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) )

#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) )
#ifndef read_barrier_depends
#define read_barrier_depends() rmb()
#endif

#ifndef rcu_head
struct __kc_callback_head {
	struct __kc_callback_head *next;
	void (*func)(struct callback_head *head);
};
#define rcu_head __kc_callback_head
#endif

#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
#ifndef CONFIG_IGB_DISABLE_PACKET_SPLIT
#define CONFIG_IGB_DISABLE_PACKET_SPLIT 1
#endif
#ifndef CONFIG_IGC_DISABLE_PACKET_SPLIT
#define CONFIG_IGC_DISABLE_PACKET_SPLIT 1
#endif

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

#ifndef do_div
#if BITS_PER_LONG == 64
# define do_div(n,base) ({					\
	uint32_t __base = (base);				\
	uint32_t __rem;						\
	__rem = ((uint64_t)(n)) % __base;			\
	(n) = ((uint64_t)(n)) / __base;				\
	__rem;							\
 })
#elif BITS_PER_LONG == 32
uint32_t _kc__div64_32(uint64_t *dividend, uint32_t divisor);
# define do_div(n,base) ({				\
	uint32_t __base = (base);			\
	uint32_t __rem;					\
	if (likely(((n) >> 32) == 0)) {			\
		__rem = (uint32_t)(n) % __base;		\
		(n) = (uint32_t)(n) / __base;		\
	} else 						\
		__rem = _kc__div64_32(&(n), __base);	\
	__rem;						\
 })
#else /* BITS_PER_LONG == ?? */
# error do_div() does not yet support the C64
#endif /* BITS_PER_LONG */
#endif /* do_div */

#ifndef NSEC_PER_SEC
#define NSEC_PER_SEC	1000000000L
#endif

#undef HAVE_I2C_SUPPORT
#else /* 2.6.0 */

#endif /* 2.6.0 => 2.5.28 */
/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,3) )
#define dma_pool pci_pool
#define dma_pool_destroy pci_pool_destroy
#define dma_pool_alloc pci_pool_alloc
#define dma_pool_free pci_pool_free

#define dma_pool_create(name,dev,size,align,allocation) \
       pci_pool_create((name),to_pci_dev(dev),(size),(align),(allocation))
#endif /* < 2.6.3 */

/*****************************************************************************/
/* 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) )
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 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 PCI_EXP_FLAGS		2	/* Capabilities register */
#define PCI_EXP_FLAGS_VERS	0x000f	/* Capability version */
#define PCI_EXP_FLAGS_TYPE	0x00f0	/* Device/Port type */
#define  PCI_EXP_TYPE_ENDPOINT	0x0	/* Express Endpoint */
#define  PCI_EXP_TYPE_LEG_END	0x1	/* Legacy Endpoint */
#define  PCI_EXP_TYPE_ROOT_PORT 0x4	/* Root Port */
#define  PCI_EXP_TYPE_DOWNSTREAM 0x6	/* Downstream Port */
#define PCI_EXP_FLAGS_SLOT	0x0100	/* Slot implemented */
#define PCI_EXP_DEVCAP		4	/* Device capabilities */
#define PCI_EXP_DEVSTA		10	/* Device Status */
#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)
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		BIT(0)
#define WAKE_UCAST		BIT(1)
#define WAKE_MCAST		BIT(2)
#define WAKE_BCAST		BIT(3)
#define WAKE_ARP		BIT(4)
#define WAKE_MAGIC		BIT(5)
#define WAKE_MAGICSECURE	BIT(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
#define pci_get_class pci_find_class
#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
}

#define PCI_EXP_LNKCAP		12	/* Link Capabilities */
#define PCI_EXP_LNKSTA		18	/* Link Status */
#define PCI_EXP_SLTCAP		20	/* Slot Capabilities */
#define PCI_EXP_SLTCTL		24	/* Slot Control */
#define PCI_EXP_SLTSTA		26	/* Slot Status */
#define PCI_EXP_RTCTL		28	/* Root Control */
#define PCI_EXP_RTCAP		30	/* Root Capabilities */
#define PCI_EXP_RTSTA		32	/* Root Status */
#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     */
/* Link partner ability register. */
#define LPA_PAUSE_CAP		0x0400	/* Can pause                   */
#define LPA_PAUSE_ASYM		0x0800	/* Can pause asymetrically     */
/* 1000BASE-T Control register */
#define ADVERTISE_1000FULL      0x0200  /* Advertise 1000BASE-T full duplex */
#define ADVERTISE_1000HALF	0x0100  /* Advertise 1000BASE-T half duplex */
/* 1000BASE-T Status register */
#define LPA_1000LOCALRXOK	0x2000	/* Link partner local receiver status */
#define LPA_1000REMRXOK		0x1000	/* Link partner remote receiver status */

#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
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
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 SUPPORTED_Pause	        BIT(13)
#define SUPPORTED_Asym_Pause	BIT(14)
#define ADVERTISED_Pause	BIT(13)
#define ADVERTISED_Asym_Pause	BIT(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, addr, off, sz, dir)       \
	dma_sync_single_for_cpu((dev), (addr), (off) + (sz), (dir))
#define dma_sync_single_range_for_device(dev, addr, off, sz, dir)    \
	dma_sync_single_for_device((dev), (addr), (off) + (sz), (dir))
#endif
#endif
#endif /* < 2.6.14 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,15) )
#ifndef kfree_rcu
/* this is placed here due to a lack of rcu_barrier in previous kernels */
#define kfree_rcu(_ptr, _offset) kfree(_ptr)
#endif /* kfree_rcu */
#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
#if ( SLE_VERSION_CODE && SLE_VERSION_CODE == SLE_VERSION(10,4,0) )
#ifdef device_can_wakeup
#undef device_can_wakeup
#endif /* device_can_wakeup */
#define device_can_wakeup(dev) 1
#endif /* SLE_VERSION(10,4,0) */
#endif /* < 2.6.16 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) )
#ifndef dev_notice
#define dev_notice(dev, fmt, args...)            \
	dev_printk(KERN_NOTICE, dev, fmt, ## args)
#endif

#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 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) )
enum pcie_link_width {
	PCIE_LNK_WIDTH_RESRV    = 0x00,
	PCIE_LNK_X1             = 0x01,
	PCIE_LNK_X2             = 0x02,
	PCIE_LNK_X4             = 0x04,
	PCIE_LNK_X8             = 0x08,
	PCIE_LNK_X12            = 0x0C,
	PCIE_LNK_X16            = 0x10,
	PCIE_LNK_X32            = 0x20,
	PCIE_LNK_WIDTH_UNKNOWN  = 0xFF,
};

#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,0)))
#define i_private u.generic_ip
#endif /* >= RHEL 5.0 */

#ifndef DIV_ROUND_UP
#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
#endif
#ifndef __ALIGN_MASK
#define __ALIGN_MASK(x, mask) (((x) + (mask)) & ~(mask))
#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))))))
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
#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

#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,11) )
#ifndef skb_checksum_help
static inline int __kc_skb_checksum_help(struct sk_buff *skb)
{
	return skb_checksum_help(skb, 0);
}
#define skb_checksum_help(skb) __kc_skb_checksum_help((skb))
#endif
#endif /* < 2.6.19 && >= 2.6.11 */

/* 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
int _kc_pci_save_state(struct pci_dev *);
#define pci_save_state(pdev) _kc_pci_save_state(pdev)
#undef pci_restore_state
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
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 __always_unused *dev)
{
	return 0;
}
#define pci_disable_pcie_error_reporting(dev) do {} while (0)
#define pci_cleanup_aer_uncorrect_error_status(dev) do {} while (0)

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/pci_hotplug.h>

#define NEW_SKB_CSUM_HELP
#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 PCI_VENDOR_ID_INTEL
#define PCI_VENDOR_ID_INTEL 0x8086
#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);

#ifndef __aligned
#define __aligned(x)			__attribute__((aligned(x)))
#endif

struct pci_dev *_kc_netdev_to_pdev(struct net_device *netdev);
#define netdev_to_dev(netdev)	\
	pci_dev_to_dev(_kc_netdev_to_pdev(netdev))
#define devm_kzalloc(dev, size, flags) kzalloc(size, flags)
#define devm_kfree(dev, p) kfree(p)
#else /* 2.6.21 */
static inline struct device *netdev_to_dev(struct net_device *netdev)
{
	return &netdev->dev;
}

#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_set_tail_pointer(skb, offset) \
	do { \
		skb->tail = skb->data + offset; \
	} 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>
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)
#ifndef ADVERTISED_2500baseX_Full
#define ADVERTISED_2500baseX_Full BIT(15)
#endif
#ifndef SUPPORTED_2500baseX_Full
#define SUPPORTED_2500baseX_Full BIT(15)
#endif

#ifndef ETH_P_PAUSE
#define ETH_P_PAUSE 0x8808
#endif

static inline int compound_order(struct page *page)
{
	return 0;
}

#define __must_be_array(a) 0

#ifndef SKB_WITH_OVERHEAD
#define SKB_WITH_OVERHEAD(X) \
	((X) - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
#endif
#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 */

static inline int __kc_skb_cow_head(struct sk_buff *skb, unsigned int headroom)
{
	int delta = 0;

	if (headroom > (skb->data - skb->head))
		delta = headroom - (skb->data - skb->head);

	if (delta || skb_header_cloned(skb))
		return pskb_expand_head(skb, ALIGN(delta, NET_SKB_PAD), 0,
					GFP_ATOMIC);
	return 0;
}
#define skb_cow_head(s, h) __kc_skb_cow_head((s), (h))
#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

#ifndef ACCESS_ONCE
#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
#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
int __kc_adapter_clean(struct net_device *, int *);
/* The following defines only provide limited support for NAPI calls and
 * should only be used by drivers which are not multi-queue enabled.
 */

#define napi_to_poll_dev(_napi) (_napi)->dev

static inline void __kc_netif_napi_add(struct net_device *dev, struct napi_struct *napi,
				  int (*poll)(struct napi_struct *, int), int weight)
{
	dev->poll = __kc_adapter_clean;
	dev->weight = weight;
	napi->poll = poll;
	napi->dev = dev;
}
#define netif_napi_add __kc_netif_napi_add

#define netif_napi_del(_a) do {} while (0)
#define napi_schedule_prep(_napi) netif_rx_schedule_prep((_napi)->dev)
#define napi_schedule(_napi) netif_rx_schedule((_napi)->dev)
#define napi_enable(_napi) netif_poll_enable(napi_to_poll_dev(_napi))
#define napi_disable(_napi) netif_poll_disable(napi_to_poll_dev(_napi))
#ifdef CONFIG_SMP
static inline void napi_synchronize(const struct napi_struct *n)
{
	struct net_device *dev = napi_to_poll_dev(n);

	while (test_bit(__LINK_STATE_RX_SCHED, &dev->state)) {
		/* No hurry. */
		msleep(1);
	}
}
#else
#define napi_synchronize(n)	barrier()
#endif /* CONFIG_SMP */
#define __napi_schedule(_napi) __netif_rx_schedule(napi_to_poll_dev(_napi))
static inline void _kc_napi_complete(struct napi_struct *napi)
{
#ifdef NETIF_F_GRO
	napi_gro_flush(napi);
#endif
	netif_rx_complete(napi_to_poll_dev(napi));
}
#define napi_complete _kc_napi_complete
#else /* NAPI */

/* The following definitions are only used if we don't support NAPI at all. */

static inline __kc_netif_napi_add(struct net_device *dev, struct napi_struct *napi,
				  int (*poll)(struct napi_struct *, int), int weight)
{
	dev->poll = poll;
	dev->weight = weight;
	napi->poll = poll;
	napi->weight = weight;
	napi->dev = dev;
}
#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
#ifndef pr_err
#define pr_err(fmt, arg...) \
	printk(KERN_ERR fmt, ##arg)
#endif

#ifndef rounddown_pow_of_two
#define rounddown_pow_of_two(n) \
	__builtin_constant_p(n) ? ( \
		(n == 1) ? 0 : \
		(1UL << ilog2(n))) : \
		(1UL << (fls_long(n) - 1))
#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) )
#define INCLUDE_PM_QOS_PARAMS_H
#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 */

#ifndef strict_strtol
#define strict_strtol(s, b, r) _kc_strict_strtol(s, b, r)
static inline int _kc_strict_strtol(const char *buf, unsigned int base, long *res)
{
	/* adapted from strict_strtoul() in 2.6.25 */
	char *tail;
	long val;
	size_t len;

	*res = 0;
	len = strlen(buf);
	if (!len)
		return -EINVAL;
	val = simple_strtol(buf, &tail, base);
	if (tail == buf)
		return -EINVAL;
	if ((*tail == '\0') ||
	    ((len == (size_t)(tail - buf) + 1) && (*tail == '\n'))) {
		*res = val;
		return 0;
	}

	return -EINVAL;
}
#endif

#else /* < 2.6.25 */

#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 */
#undef kzalloc_node
#define kzalloc_node(_size, _flags, _node) kzalloc(_size, _flags)

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 */
#define NETDEV_CAN_SET_GSO_MAX_SIZE
#ifdef HAVE_PCI_ASPM_H
#include <linux/pci-aspm.h>
#endif
#define HAVE_NETDEV_VLAN_FEATURES
#ifndef PCI_EXP_LNKCAP_ASPMS
#define PCI_EXP_LNKCAP_ASPMS 0x00000c00 /* ASPM Support */
#endif /* PCI_EXP_LNKCAP_ASPMS */
#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)

#ifndef DMA_ATTR_WEAK_ORDERING
#define DMA_ATTR_WEAK_ORDERING 0
#endif

#ifdef HAVE_TX_MQ
void _kc_netif_tx_stop_all_queues(struct net_device *);
void _kc_netif_tx_wake_all_queues(struct net_device *);
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
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 */
#undef HAVE_IXGBE_DEBUG_FS
#undef HAVE_IGB_DEBUG_FS
#else /* < 2.6.27 */
#define ethtool_cmd_speed_set _kc_ethtool_cmd_speed_set
static inline void _kc_ethtool_cmd_speed_set(struct ethtool_cmd *ep,
					     __u32 speed)
{
	ep->speed = (__u16)(speed & 0xFFFF);
	ep->speed_hi = (__u16)(speed >> 16);
}
#define HAVE_TX_MQ
#define HAVE_NETDEV_SELECT_QUEUE
#ifdef CONFIG_DEBUG_FS
#define HAVE_IXGBE_DEBUG_FS
#define HAVE_IGB_DEBUG_FS
#endif /* CONFIG_DEBUG_FS */
#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
int _kc_pci_wake_from_d3(struct pci_dev *dev, bool enable);
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

#define PCI_EXP_DEVCAP2		36	/* Device Capabilities 2 */
#define PCI_EXP_DEVCTL2		40	/* Device Control 2 */

#define PCI_EXP_DEVCAP_FLR	0x10000000 /* Function Level Reset */
#define PCI_EXP_DEVCTL_BCR_FLR	0x8000 /* Bridge Configuration Retry / FLR */

#endif /* < 2.6.28 */

/*****************************************************************************/
#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 */

#define  PCI_EXP_SLTSTA_PDS	0x0040	/* Presence Detect State */

#ifndef PCI_EXP_LNKSTA_CLS
#define  PCI_EXP_LNKSTA_CLS    0x000f  /* Current Link Speed */
#endif
#ifndef PCI_EXP_LNKSTA_NLW
#define  PCI_EXP_LNKSTA_NLW    0x03f0  /* Negotiated Link Width */
#endif

#ifndef pci_clear_master
void _kc_pci_clear_master(struct pci_dev *dev);
#define pci_clear_master(dev)	_kc_pci_clear_master(dev)
#endif

#ifndef PCI_EXP_LNKCTL_ASPMC
#define  PCI_EXP_LNKCTL_ASPMC	0x0003	/* ASPM Control */
#endif

#ifndef PCI_EXP_LNKCAP_MLW
#define PCI_EXP_LNKCAP_MLW	0x000003f0 /* Maximum Link Width */
#endif

#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 NO_PTP_SUPPORT
#define skb_rx_queue_recorded(a) false
#define skb_get_rx_queue(a) 0
#define skb_record_rx_queue(a, b) do {} while (0)
#define skb_tx_hash(n, s) ___kc_skb_tx_hash((n), (s), (n)->real_num_tx_queues)
#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 */
static inline void _kc_synchronize_irq(unsigned int a)
{
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,5,28) )
	synchronize_irq();
#else /* < 2.5.28 */
	synchronize_irq(a);
#endif /* < 2.5.28 */
}
#undef synchronize_irq
#define synchronize_irq(a) _kc_synchronize_irq(a)

#define PCI_EXP_LNKCTL2		48	/* Link Control 2 */

#ifdef nr_cpus_node
#undef nr_cpus_node
#define nr_cpus_node(node) cpumask_weight(cpumask_of_node(node))
#endif

#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,5))
#define HAVE_PCI_DEV_IS_VIRTFN_BIT
#endif /* RHEL >= 5.5 */

#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,5)))
static inline bool pci_is_root_bus(struct pci_bus *pbus)
{
	return !(pbus->parent);
}
#endif

#else /* < 2.6.30 */
#define HAVE_ASPM_QUIRKS
#define HAVE_PCI_DEV_IS_VIRTFN_BIT
#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
#ifndef PORT_OTHER
#define PORT_OTHER 0xff
#endif
#ifndef MDIO_PHY_ID_PRTAD
#define MDIO_PHY_ID_PRTAD 0x03e0
#endif
#ifndef MDIO_PHY_ID_DEVAD
#define MDIO_PHY_ID_DEVAD 0x001f
#endif
#ifndef skb_dst
#define skb_dst(s) ((s)->dst)
#endif

#ifndef SUPPORTED_1000baseKX_Full
#define SUPPORTED_1000baseKX_Full	BIT(17)
#endif
#ifndef SUPPORTED_10000baseKX4_Full
#define SUPPORTED_10000baseKX4_Full	BIT(18)
#endif
#ifndef SUPPORTED_10000baseKR_Full
#define SUPPORTED_10000baseKR_Full	BIT(19)
#endif

#ifndef ADVERTISED_1000baseKX_Full
#define ADVERTISED_1000baseKX_Full	BIT(17)
#endif
#ifndef ADVERTISED_10000baseKX4_Full
#define ADVERTISED_10000baseKX4_Full	BIT(18)
#endif
#ifndef ADVERTISED_10000baseKR_Full
#define ADVERTISED_10000baseKR_Full	BIT(19)
#endif

static inline unsigned long dev_trans_start(struct net_device *dev)
{
	return dev->trans_start;
}
#else /* < 2.6.31 */
#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
#ifndef HAVE_INCLUDE_LINUX_MDIO_H
#define HAVE_INCLUDE_LINUX_MDIO_H
#endif
#include <linux/mdio.h>
#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       BIT(26)
#endif
#endif /* CONFIG_FCOE || CONFIG_FCOE_MODULE */

#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) )
static inline int _kc_pm_runtime_get_sync()
{
	return 1;
}
#define pm_runtime_get_sync(dev)	_kc_pm_runtime_get_sync()
#else /* 2.6.0 => 2.6.32 */
static inline int _kc_pm_runtime_get_sync(struct device __always_unused *dev)
{
	return 1;
}
#ifndef pm_runtime_get_sync
#define pm_runtime_get_sync(dev)	_kc_pm_runtime_get_sync(dev)
#endif
#endif /* 2.6.0 => 2.6.32 */
#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 (RHEL_RELEASE_CODE && \
     (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,2)) && \
     (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)))
#define HAVE_RHEL6_NET_DEVICE_EXTENDED
#endif /* RHEL >= 6.2 && RHEL < 7.0 */
#if (RHEL_RELEASE_CODE && \
     (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,6)) && \
     (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)))
#define HAVE_RHEL6_NET_DEVICE_OPS_EXT
#define HAVE_NDO_SET_FEATURES
#endif /* RHEL >= 6.6 && RHEL < 7.0 */
#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 */

#ifndef PORT_DA
#define PORT_DA PORT_OTHER
#endif /* PORT_DA */
#ifndef PORT_NONE
#define PORT_NONE PORT_OTHER
#endif

#if ((RHEL_RELEASE_CODE && \
     (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,3)) && \
     (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0))))
#if !defined(CONFIG_X86_32) && !defined(CONFIG_NEED_DMA_MAP_STATE)
#undef DEFINE_DMA_UNMAP_ADDR
#define DEFINE_DMA_UNMAP_ADDR(ADDR_NAME)	dma_addr_t ADDR_NAME
#undef DEFINE_DMA_UNMAP_LEN
#define DEFINE_DMA_UNMAP_LEN(LEN_NAME)		__u32 LEN_NAME
#undef dma_unmap_addr
#define dma_unmap_addr(PTR, ADDR_NAME)		((PTR)->ADDR_NAME)
#undef dma_unmap_addr_set
#define dma_unmap_addr_set(PTR, ADDR_NAME, VAL)	(((PTR)->ADDR_NAME) = (VAL))
#undef dma_unmap_len
#define dma_unmap_len(PTR, LEN_NAME)		((PTR)->LEN_NAME)
#undef dma_unmap_len_set
#define dma_unmap_len_set(PTR, LEN_NAME, VAL)	(((PTR)->LEN_NAME) = (VAL))
#endif /* CONFIG_X86_64 && !CONFIG_NEED_DMA_MAP_STATE */
#endif /* RHEL_RELEASE_CODE */

#if (!(RHEL_RELEASE_CODE && \
       (((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,8)) && \
         (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(6,0))) || \
        ((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,1)) && \
         (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0))))))
static inline bool pci_is_pcie(struct pci_dev *dev)
{
	return !!pci_pcie_cap(dev);
}
#endif /* RHEL_RELEASE_CODE */

#if (!(RHEL_RELEASE_CODE && \
      (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,2))))
#define sk_tx_queue_get(_sk) (-1)
#define sk_tx_queue_set(_sk, _tx_queue) do {} while(0)
#endif /* !(RHEL >= 6.2) */

#if (RHEL_RELEASE_CODE && \
     (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,4)) && \
     (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)))
#define HAVE_RHEL6_ETHTOOL_OPS_EXT_STRUCT
#define HAVE_ETHTOOL_GRXFHINDIR_SIZE
#define HAVE_ETHTOOL_SET_PHYS_ID
#define HAVE_ETHTOOL_GET_TS_INFO
#if (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(6,5))
#define HAVE_ETHTOOL_GSRSSH
#define HAVE_RHEL6_SRIOV_CONFIGURE
#define HAVE_RXFH_NONCONST
#endif /* RHEL > 6.5 */
#endif /* RHEL >= 6.4 && RHEL < 7.0 */

#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 */
#endif /* < 2.6.33 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34) )
#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(6,0))
#ifndef pci_num_vf
#define pci_num_vf(pdev) _kc_pci_num_vf(pdev)
int _kc_pci_num_vf(struct pci_dev *dev);
#endif
#endif /* RHEL_RELEASE_CODE */

#ifndef dev_is_pci
#define dev_is_pci(d) ((d)->bus == &pci_bus_type)
#endif

#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 pci_dev *pdev = _kc_netdev_to_pdev(netdev);	\
	printk(level "%s: " format, pci_name(pdev), ##args);	\
} while(0)
#elif ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21) )
#define netdev_printk(level, netdev, format, args...)		\
do {								\
	struct pci_dev *pdev = _kc_netdev_to_pdev(netdev);	\
	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)
#undef netif_dbg
#define netif_dbg(priv, type, dev, fmt, args...)		\
	netif_level(dbg, 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 */

#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(6,3))
#ifdef IGB_HWMON
#ifdef CONFIG_DEBUG_LOCK_ALLOC
#define sysfs_attr_init(attr)				\
	do {						\
		static struct lock_class_key __key;	\
		(attr)->key = &__key;			\
	} while (0)
#else
#define sysfs_attr_init(attr) do {} while (0)
#endif /* CONFIG_DEBUG_LOCK_ALLOC */
#endif /* IGB_HWMON */
#endif /* RHEL_RELEASE_CODE */

#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) )
static inline bool _kc_pm_runtime_suspended()
{
	return false;
}
#define pm_runtime_suspended(dev)	_kc_pm_runtime_suspended()
#else /* 2.6.0 => 2.6.34 */
static inline bool _kc_pm_runtime_suspended(struct device __always_unused *dev)
{
	return false;
}
#ifndef pm_runtime_suspended
#define pm_runtime_suspended(dev)	_kc_pm_runtime_suspended(dev)
#endif
#endif /* 2.6.0 => 2.6.34 */

#ifndef pci_bus_speed
/* override pci_bus_speed introduced in 2.6.19 with an expanded enum type */
enum _kc_pci_bus_speed {
	_KC_PCIE_SPEED_2_5GT		= 0x14,
	_KC_PCIE_SPEED_5_0GT		= 0x15,
	_KC_PCIE_SPEED_8_0GT		= 0x16,
	_KC_PCI_SPEED_UNKNOWN		= 0xff,
};
#define pci_bus_speed		_kc_pci_bus_speed
#define PCIE_SPEED_2_5GT	_KC_PCIE_SPEED_2_5GT
#define PCIE_SPEED_5_0GT	_KC_PCIE_SPEED_5_0GT
#define PCIE_SPEED_8_0GT	_KC_PCIE_SPEED_8_0GT
#define PCI_SPEED_UNKNOWN	_KC_PCI_SPEED_UNKNOWN
#endif /* pci_bus_speed */

#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) )
ssize_t _kc_simple_write_to_buffer(void *to, size_t available, loff_t *ppos,
				   const void __user *from, size_t count);
#define simple_write_to_buffer _kc_simple_write_to_buffer

#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,4)))
static inline struct pci_dev *pci_physfn(struct pci_dev *dev)
{
#ifdef HAVE_PCI_DEV_IS_VIRTFN_BIT
#ifdef CONFIG_PCI_IOV
	if (dev->is_virtfn)
		dev = dev->physfn;
#endif /* CONFIG_PCI_IOV */
#endif /* HAVE_PCI_DEV_IS_VIRTFN_BIT */
	return dev;
}
#endif /* ! RHEL >= 6.4 */

#ifndef PCI_EXP_LNKSTA_NLW_SHIFT
#define PCI_EXP_LNKSTA_NLW_SHIFT 4
#endif

#ifndef numa_node_id
#define numa_node_id() 0
#endif
#ifndef numa_mem_id
#define numa_mem_id numa_node_id
#endif
#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,0)))
#ifdef HAVE_TX_MQ
#include <net/sch_generic.h>
#ifndef CONFIG_NETDEVICES_MULTIQUEUE
int _kc_netif_set_real_num_tx_queues(struct net_device *, unsigned int);
#else /* CONFIG_NETDEVICES_MULTI_QUEUE */
static inline int _kc_netif_set_real_num_tx_queues(struct net_device *dev,
						   unsigned int txq)
{
	dev->egress_subqueue_count = txq;
	return 0;
}
#endif /* CONFIG_NETDEVICES_MULTI_QUEUE */
#else /* HAVE_TX_MQ */
static inline int _kc_netif_set_real_num_tx_queues(struct net_device __always_unused *dev,
						   unsigned int __always_unused txq)
{
	return 0;
}
#endif /* HAVE_TX_MQ */
#define netif_set_real_num_tx_queues(dev, txq) \
	_kc_netif_set_real_num_tx_queues(dev, txq)
#endif /* !(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,0)) */
#ifndef ETH_FLAG_RXHASH
#define ETH_FLAG_RXHASH (1<<28)
#endif /* ETH_FLAG_RXHASH */
#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,0))
#define HAVE_IRQ_AFFINITY_HINT
#endif
struct device_node;
#else /* < 2.6.35 */
#define HAVE_STRUCT_DEVICE_OF_NODE
#define HAVE_PM_QOS_REQUEST_LIST
#define HAVE_IRQ_AFFINITY_HINT
#include <linux/of.h>
#endif /* < 2.6.35 */

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

enum {
	WQ_UNBOUND = 0,
	WQ_RESCUER = 0,
};

#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)

#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,3)))
#undef usleep_range
#define usleep_range(min, max)	msleep(DIV_ROUND_UP(min, 1000))
#endif

#define u64_stats_update_begin(a) do { } while(0)
#define u64_stats_update_end(a) do { } while(0)
#define u64_stats_fetch_begin(a) do { } while(0)
#define u64_stats_fetch_retry_bh(a,b) (0)
#define u64_stats_fetch_begin_bh(a) (0)

#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,1))
#define HAVE_8021P_SUPPORT
#endif

/* RHEL6.4 and SLES11sp2 backported skb_tx_timestamp */
#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,4)) && \
     !(SLE_VERSION_CODE >= SLE_VERSION(11,2,0)))
static inline void skb_tx_timestamp(struct sk_buff __always_unused *skb)
{
	return;
}
#endif

#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) )
#define HAVE_NON_CONST_PCI_DRIVER_NAME
#ifndef netif_set_real_num_tx_queues
static inline int _kc_netif_set_real_num_tx_queues(struct net_device *dev,
						   unsigned int txq)
{
	netif_set_real_num_tx_queues(dev, txq);
	return 0;
}
#define netif_set_real_num_tx_queues(dev, txq) \
	_kc_netif_set_real_num_tx_queues(dev, txq)
#endif
#ifndef netif_set_real_num_rx_queues
static inline int __kc_netif_set_real_num_rx_queues(struct net_device __always_unused *dev,
						    unsigned int __always_unused rxq)
{
	return 0;
}
#define netif_set_real_num_rx_queues(dev, rxq) \
	__kc_netif_set_real_num_rx_queues((dev), (rxq))
#endif
#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 BIT(7)
#endif /* ETH_FLAG_TXVLAN */
#ifndef ETH_FLAG_RXVLAN
#define ETH_FLAG_RXVLAN BIT(8)
#endif /* ETH_FLAG_RXVLAN */

#define WQ_MEM_RECLAIM WQ_RESCUER

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)

#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,7)) || \
     (RHEL_RELEASE_CODE == RHEL_RELEASE_VERSION(6,0)))
static inline __be16 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;
}
#endif /* !RHEL5.7+ || RHEL6.0 */

#ifdef HAVE_HW_TIME_STAMP
#define SKBTX_HW_TSTAMP BIT(0)
#define SKBTX_IN_PROGRESS BIT(2)
#define SKB_SHARED_TX_IS_UNION
#endif

#ifndef device_wakeup_enable
#define device_wakeup_enable(dev)	device_set_wakeup_enable(dev, true)
#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 */
#if IS_ENABLED(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 */
#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,2))
#define CONFIG_XPS
#endif /* RHEL_RELEASE_VERSION(6,2) */
#endif /* < 2.6.38 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39) )
#ifndef TC_BITMASK
#define TC_BITMASK 15
#endif
#ifndef NETIF_F_RXCSUM
#define NETIF_F_RXCSUM		BIT(29)
#endif
#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

#ifndef udp_csum
#define udp_csum __kc_udp_csum
static inline __wsum __kc_udp_csum(struct sk_buff *skb)
{
	__wsum csum = csum_partial(skb_transport_header(skb),
				   sizeof(struct udphdr), skb->csum);

	for (skb = skb_shinfo(skb)->frag_list; skb; skb = skb->next) {
		csum = csum_add(csum, skb->csum);
	}
	return csum;
}
#endif /* udp_csum */
#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
#define HAVE_IRQ_AFFINITY_NOTIFY
#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.
 */
#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(3,0,0) )
#define USE_LEGACY_PM_SUPPORT
#ifndef kfree_rcu
#define kfree_rcu(_ptr, _rcu_head) do { 				\
	void __kc_kfree_rcu(struct rcu_head *rcu_head)			\
	{								\
		void *ptr = container_of(rcu_head,			\
					 typeof(*_ptr),			\
					 _rcu_head);			\
		kfree(ptr);						\
	}								\
	call_rcu(&(_ptr)->_rcu_head, __kc_kfree_rcu);			\
} while (0)
#define HAVE_KFREE_RCU_BARRIER
#endif /* kfree_rcu */
#ifndef kstrtol_from_user
#define kstrtol_from_user(s, c, b, r) _kc_kstrtol_from_user(s, c, b, r)
static inline int _kc_kstrtol_from_user(const char __user *s, size_t count,
					unsigned int base, long *res)
{
	/* sign, base 2 representation, newline, terminator */
	char buf[1 + sizeof(long) * 8 + 1 + 1];

	count = min(count, sizeof(buf) - 1);
	if (copy_from_user(buf, s, count))
		return -EFAULT;
	buf[count] = '\0';
	return strict_strtol(buf, base, res);
}
#endif

#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,0) || \
     RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(5,7)))
/* 20000base_blah_full Supported and Advertised Registers */
#define SUPPORTED_20000baseMLD2_Full	BIT(21)
#define SUPPORTED_20000baseKR2_Full	BIT(22)
#define ADVERTISED_20000baseMLD2_Full	BIT(21)
#define ADVERTISED_20000baseKR2_Full	BIT(22)
#endif /* RHEL_RELEASE_CODE */
#endif /* < 3.0.0 */

/*****************************************************************************/
#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)

/* 1000BASE-T Control register */
#define CTL1000_AS_MASTER	0x0800
#define CTL1000_ENABLE_MASTER	0x1000

/* kernels less than 3.0.0 don't have this */
#ifndef ETH_P_8021AD
#define ETH_P_8021AD	0x88A8
#endif

/* Stub definition for !CONFIG_OF is introduced later */
#ifdef CONFIG_OF
static inline struct device_node *
pci_device_to_OF_node(struct pci_dev __maybe_unused *pdev)
{
#ifdef HAVE_STRUCT_DEVICE_OF_NODE
	return pdev ? pdev->dev.of_node : NULL;
#else
	return NULL;
#endif /* !HAVE_STRUCT_DEVICE_OF_NODE */
}
#endif /* CONFIG_OF */
#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) )
#ifndef dma_zalloc_coherent
#define dma_zalloc_coherent(d, s, h, f) _kc_dma_zalloc_coherent(d, s, h, f)
static inline void *_kc_dma_zalloc_coherent(struct device *dev, size_t size,
					    dma_addr_t *dma_handle, gfp_t flag)
{
	void *ret = dma_alloc_coherent(dev, size, dma_handle, flag);
	if (ret)
		memset(ret, 0, size);
	return ret;
}
#endif
#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
#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) )
#include <linux/dma-mapping.h>
#endif
#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 */

#ifndef SPEED_UNKNOWN
#define SPEED_UNKNOWN	-1
#endif
#ifndef DUPLEX_UNKNOWN
#define DUPLEX_UNKNOWN	0xff
#endif
#if ((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,3)) ||\
     (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,3,0)))
#ifndef HAVE_PCI_DEV_FLAGS_ASSIGNED
#define HAVE_PCI_DEV_FLAGS_ASSIGNED
#endif
#endif
#else /* < 3.2.0 */
#ifndef HAVE_PCI_DEV_FLAGS_ASSIGNED
#define HAVE_PCI_DEV_FLAGS_ASSIGNED
#define HAVE_VF_SPOOFCHK_CONFIGURE
#endif
#ifndef HAVE_SKB_L4_RXHASH
#define HAVE_SKB_L4_RXHASH
#endif
#define HAVE_IOMMU_PRESENT
#define HAVE_PM_QOS_REQUEST_LIST_NEW
#endif /* < 3.2.0 */

#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE == RHEL_RELEASE_VERSION(6,2))
#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) )
/* NOTE: the order of parameters to _kc_alloc_workqueue() is different than
 * alloc_workqueue() to avoid compiler warning from -Wvarargs
 */
static inline struct workqueue_struct * __attribute__ ((format(printf, 3, 4)))
_kc_alloc_workqueue(__maybe_unused int flags, __maybe_unused int max_active,
		    const char *fmt, ...)
{
	struct workqueue_struct *wq;
	va_list args, temp;
	unsigned int len;
	char *p;

	va_start(args, fmt);
	va_copy(temp, args);
	len = vsnprintf(NULL, 0, fmt, temp);
	va_end(temp);

	p = kmalloc(len + 1, GFP_KERNEL);
	if (!p) {
		va_end(args);
		return NULL;
	}

	vsnprintf(p, len + 1, fmt, args);
	va_end(args);
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36) )
	wq = create_workqueue(p);
#else
	wq = alloc_workqueue(p, flags, max_active);
#endif
	kfree(p);

	return wq;
}
#ifdef alloc_workqueue
#undef alloc_workqueue
#endif
#define alloc_workqueue(fmt, flags, max_active, args...) \
	_kc_alloc_workqueue(flags, max_active, fmt, ##args)

#if !(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,5))
typedef u32 netdev_features_t;
#endif
#undef PCI_EXP_TYPE_RC_EC
#define  PCI_EXP_TYPE_RC_EC	0xa	/* Root Complex Event Collector */
#ifndef CONFIG_BQL
#define netdev_tx_completed_queue(_q, _p, _b) do {} while (0)
#define netdev_completed_queue(_n, _p, _b) do {} while (0)
#define netdev_tx_sent_queue(_q, _b) do {} while (0)
#define netdev_sent_queue(_n, _b) do {} while (0)
#define netdev_tx_reset_queue(_q) do {} while (0)
#define netdev_reset_queue(_n) do {} while (0)
#endif
#if (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,3,0))
#define HAVE_ETHTOOL_GRXFHINDIR_SIZE
#endif /* SLE_VERSION(11,3,0) */
#define netif_xmit_stopped(_q) netif_tx_queue_stopped(_q)
#if !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,4,0))
static inline int __kc_ipv6_skip_exthdr(const struct sk_buff *skb, int start,
					u8 *nexthdrp,
					__be16 __always_unused *frag_offp)
{
	return ipv6_skip_exthdr(skb, start, nexthdrp);
}
#undef ipv6_skip_exthdr
#define ipv6_skip_exthdr(a,b,c,d) __kc_ipv6_skip_exthdr((a), (b), (c), (d))
#endif /* !SLES11sp4 or greater */

#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,4)) && \
     !(SLE_VERSION_CODE >= SLE_VERSION(11,3,0)))
static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings)
{
	return index % n_rx_rings;
}
#endif

#else /* ! < 3.3.0 */
#define HAVE_ETHTOOL_GRXFHINDIR_SIZE
#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 */

#if !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,3,0))
#define NUMTCS_RETURNS_U8

int _kc_simple_open(struct inode *inode, struct file *file);
#define simple_open _kc_simple_open
#endif /* !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,3,0)) */

#ifndef skb_add_rx_frag
#define skb_add_rx_frag _kc_skb_add_rx_frag
void _kc_skb_add_rx_frag(struct sk_buff * skb, int i, struct page *page,
			 int off, int size, unsigned int truesize);
#endif
#ifdef NET_ADDR_RANDOM
#define eth_hw_addr_random(N) do { \
	eth_random_addr(N->dev_addr); \
	N->addr_assign_type |= NET_ADDR_RANDOM; \
	} while (0)
#else /* NET_ADDR_RANDOM */
#define eth_hw_addr_random(N) eth_random_addr(N->dev_addr)
#endif /* NET_ADDR_RANDOM */

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

#else /* < 3.4.0 */
#include <linux/kconfig.h>
#endif /* >= 3.4.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) ) || \
    ( RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,4) )
#if !defined(NO_PTP_SUPPORT) && IS_ENABLED(CONFIG_PTP_1588_CLOCK)
#define HAVE_PTP_1588_CLOCK
#endif /* !NO_PTP_SUPPORT && IS_ENABLED(CONFIG_PTP_1588_CLOCK) */
#endif /* >= 3.0.0 || RHEL_RELEASE > 6.4 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0) )

#ifndef SIZE_MAX
#define SIZE_MAX (~(size_t)0)
#endif

#ifndef BITS_PER_LONG_LONG
#define BITS_PER_LONG_LONG 64
#endif

#ifndef ether_addr_equal
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))
#endif

/* Definitions for !CONFIG_OF_NET are introduced in 3.10 */
#ifdef CONFIG_OF_NET
static inline int of_get_phy_mode(struct device_node __always_unused *np)
{
	return -ENODEV;
}

static inline const void *
of_get_mac_address(struct device_node __always_unused *np)
{
	return NULL;
}
#endif
#else
#include <linux/of_net.h>
#define HAVE_FDB_OPS
#define HAVE_ETHTOOL_GET_TS_INFO
#endif /* < 3.5.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0) )
#define PCI_EXP_LNKCAP2		44	/* Link Capability 2 */

#ifndef MDIO_EEE_100TX
#define MDIO_EEE_100TX		0x0002	/* 100TX EEE cap */
#endif
#ifndef MDIO_EEE_1000T
#define MDIO_EEE_1000T		0x0004	/* 1000T EEE cap */
#endif
#ifndef MDIO_EEE_10GT
#define MDIO_EEE_10GT		0x0008	/* 10GT EEE cap */
#endif
#ifndef MDIO_EEE_1000KX
#define MDIO_EEE_1000KX		0x0010	/* 1000KX EEE cap */
#endif
#ifndef MDIO_EEE_10GKX4
#define MDIO_EEE_10GKX4		0x0020	/* 10G KX4 EEE cap */
#endif
#ifndef MDIO_EEE_10GKR
#define MDIO_EEE_10GKR		0x0040	/* 10G KR EEE cap */
#endif

#ifndef __GFP_MEMALLOC
#define __GFP_MEMALLOC 0
#endif

#ifndef eth_broadcast_addr
#define eth_broadcast_addr _kc_eth_broadcast_addr
static inline void _kc_eth_broadcast_addr(u8 *addr)
{
	memset(addr, 0xff, ETH_ALEN);
}
#endif

#ifndef eth_random_addr
#define eth_random_addr _kc_eth_random_addr
static inline void _kc_eth_random_addr(u8 *addr)
{
        get_random_bytes(addr, ETH_ALEN);
        addr[0] &= 0xfe; /* clear multicast */
        addr[0] |= 0x02; /* set local assignment */
}
#endif /* eth_random_addr */

#ifndef DMA_ATTR_SKIP_CPU_SYNC
#define DMA_ATTR_SKIP_CPU_SYNC 0
#endif
#else /* < 3.6.0 */
#define HAVE_STRUCT_PAGE_PFMEMALLOC
#endif /* < 3.6.0 */

/******************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0) )
#include <linux/workqueue.h>
#ifndef ADVERTISED_40000baseKR4_Full
/* these defines were all added in one commit, so should be safe
 * to trigger activiation on one define
 */
#define SUPPORTED_40000baseKR4_Full	BIT(23)
#define SUPPORTED_40000baseCR4_Full	BIT(24)
#define SUPPORTED_40000baseSR4_Full	BIT(25)
#define SUPPORTED_40000baseLR4_Full	BIT(26)
#define ADVERTISED_40000baseKR4_Full	BIT(23)
#define ADVERTISED_40000baseCR4_Full	BIT(24)
#define ADVERTISED_40000baseSR4_Full	BIT(25)
#define ADVERTISED_40000baseLR4_Full	BIT(26)
#endif

#ifndef mmd_eee_cap_to_ethtool_sup_t
/**
 * mmd_eee_cap_to_ethtool_sup_t
 * @eee_cap: value of the MMD EEE Capability register
 *
 * A small helper function that translates MMD EEE Capability (3.20) bits
 * to ethtool supported settings.
 */
static inline u32 __kc_mmd_eee_cap_to_ethtool_sup_t(u16 eee_cap)
{
	u32 supported = 0;

	if (eee_cap & MDIO_EEE_100TX)
		supported |= SUPPORTED_100baseT_Full;
	if (eee_cap & MDIO_EEE_1000T)
		supported |= SUPPORTED_1000baseT_Full;
	if (eee_cap & MDIO_EEE_10GT)
		supported |= SUPPORTED_10000baseT_Full;
	if (eee_cap & MDIO_EEE_1000KX)
		supported |= SUPPORTED_1000baseKX_Full;
	if (eee_cap & MDIO_EEE_10GKX4)
		supported |= SUPPORTED_10000baseKX4_Full;
	if (eee_cap & MDIO_EEE_10GKR)
		supported |= SUPPORTED_10000baseKR_Full;

	return supported;
}
#define mmd_eee_cap_to_ethtool_sup_t(eee_cap) \
	__kc_mmd_eee_cap_to_ethtool_sup_t(eee_cap)
#endif /* mmd_eee_cap_to_ethtool_sup_t */

#ifndef mmd_eee_adv_to_ethtool_adv_t
/**
 * mmd_eee_adv_to_ethtool_adv_t
 * @eee_adv: value of the MMD EEE Advertisement/Link Partner Ability registers
 *
 * A small helper function that translates the MMD EEE Advertisement (7.60)
 * and MMD EEE Link Partner Ability (7.61) bits to ethtool advertisement
 * settings.
 */
static inline u32 __kc_mmd_eee_adv_to_ethtool_adv_t(u16 eee_adv)
{
	u32 adv = 0;

	if (eee_adv & MDIO_EEE_100TX)
		adv |= ADVERTISED_100baseT_Full;
	if (eee_adv & MDIO_EEE_1000T)
		adv |= ADVERTISED_1000baseT_Full;
	if (eee_adv & MDIO_EEE_10GT)
		adv |= ADVERTISED_10000baseT_Full;
	if (eee_adv & MDIO_EEE_1000KX)
		adv |= ADVERTISED_1000baseKX_Full;
	if (eee_adv & MDIO_EEE_10GKX4)
		adv |= ADVERTISED_10000baseKX4_Full;
	if (eee_adv & MDIO_EEE_10GKR)
		adv |= ADVERTISED_10000baseKR_Full;

	return adv;
}

#define mmd_eee_adv_to_ethtool_adv_t(eee_adv) \
	__kc_mmd_eee_adv_to_ethtool_adv_t(eee_adv)
#endif /* mmd_eee_adv_to_ethtool_adv_t */

#ifndef ethtool_adv_to_mmd_eee_adv_t
/**
 * ethtool_adv_to_mmd_eee_adv_t
 * @adv: the ethtool advertisement settings
 *
 * A small helper function that translates ethtool advertisement settings
 * to EEE advertisements for the MMD EEE Advertisement (7.60) and
 * MMD EEE Link Partner Ability (7.61) registers.
 */
static inline u16 __kc_ethtool_adv_to_mmd_eee_adv_t(u32 adv)
{
	u16 reg = 0;

	if (adv & ADVERTISED_100baseT_Full)
		reg |= MDIO_EEE_100TX;
	if (adv & ADVERTISED_1000baseT_Full)
		reg |= MDIO_EEE_1000T;
	if (adv & ADVERTISED_10000baseT_Full)
		reg |= MDIO_EEE_10GT;
	if (adv & ADVERTISED_1000baseKX_Full)
		reg |= MDIO_EEE_1000KX;
	if (adv & ADVERTISED_10000baseKX4_Full)
		reg |= MDIO_EEE_10GKX4;
	if (adv & ADVERTISED_10000baseKR_Full)
		reg |= MDIO_EEE_10GKR;

	return reg;
}
#define ethtool_adv_to_mmd_eee_adv_t(adv) __kc_ethtool_adv_to_mmd_eee_adv_t(adv)
#endif /* ethtool_adv_to_mmd_eee_adv_t */

#ifndef pci_pcie_type
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24) )
static inline u8 pci_pcie_type(struct pci_dev *pdev)
{
	int pos;
	u16 reg16;

	pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
	BUG_ON(!pos);
	pci_read_config_word(pdev, pos + PCI_EXP_FLAGS, &reg16);
	return (reg16 & PCI_EXP_FLAGS_TYPE) >> 4;
}
#else /* < 2.6.24 */
#define pci_pcie_type(x)	(x)->pcie_type
#endif /* < 2.6.24 */
#endif /* pci_pcie_type */

#if ( ! ( RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,4) ) ) && \
    ( ! ( SLE_VERSION_CODE >= SLE_VERSION(11,3,0) ) ) && \
    ( LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) )
#define ptp_clock_register(caps, args...) ptp_clock_register(caps)
#endif

#ifndef pcie_capability_read_word
int __kc_pcie_capability_read_word(struct pci_dev *dev, int pos, u16 *val);
#define pcie_capability_read_word(d,p,v) __kc_pcie_capability_read_word(d,p,v)
#endif /* pcie_capability_read_word */

#ifndef pcie_capability_read_dword
int __kc_pcie_capability_read_dword(struct pci_dev *dev, int pos, u32 *val);
#define pcie_capability_read_dword(d,p,v) __kc_pcie_capability_read_dword(d,p,v)
#endif

#ifndef pcie_capability_write_word
int __kc_pcie_capability_write_word(struct pci_dev *dev, int pos, u16 val);
#define pcie_capability_write_word(d,p,v) __kc_pcie_capability_write_word(d,p,v)
#endif /* pcie_capability_write_word */

#ifndef pcie_capability_clear_and_set_word
int __kc_pcie_capability_clear_and_set_word(struct pci_dev *dev, int pos,
					    u16 clear, u16 set);
#define pcie_capability_clear_and_set_word(d,p,c,s) \
	__kc_pcie_capability_clear_and_set_word(d,p,c,s)
#endif /* pcie_capability_clear_and_set_word */

#ifndef pcie_capability_clear_word
int __kc_pcie_capability_clear_word(struct pci_dev *dev, int pos,
					     u16 clear);
#define pcie_capability_clear_word(d, p, c) \
	__kc_pcie_capability_clear_word(d, p, c)
#endif /* pcie_capability_clear_word */

#ifndef PCI_EXP_LNKSTA2
#define PCI_EXP_LNKSTA2		50	/* Link Status 2 */
#endif

#if (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,3,0))
#define USE_CONST_DEV_UC_CHAR
#define HAVE_NDO_FDB_ADD_NLATTR
#endif

#if !(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,8))
#define napi_gro_flush(_napi, _flush_old) napi_gro_flush(_napi)
#endif /* !RHEL6.8+ */

#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,6))
#include <linux/hashtable.h>
#else

#define DEFINE_HASHTABLE(name, bits)						\
	struct hlist_head name[1 << (bits)] =					\
			{ [0 ... ((1 << (bits)) - 1)] = HLIST_HEAD_INIT }

#define DEFINE_READ_MOSTLY_HASHTABLE(name, bits)				\
	struct hlist_head name[1 << (bits)] __read_mostly =			\
			{ [0 ... ((1 << (bits)) - 1)] = HLIST_HEAD_INIT }

#define DECLARE_HASHTABLE(name, bits)                                   	\
	struct hlist_head name[1 << (bits)]

#define HASH_SIZE(name) (ARRAY_SIZE(name))
#define HASH_BITS(name) ilog2(HASH_SIZE(name))

/* Use hash_32 when possible to allow for fast 32bit hashing in 64bit kernels. */
#define hash_min(val, bits)							\
	(sizeof(val) <= 4 ? hash_32(val, bits) : hash_long(val, bits))

static inline void __hash_init(struct hlist_head *ht, unsigned int sz)
{
	unsigned int i;

	for (i = 0; i < sz; i++)
		INIT_HLIST_HEAD(&ht[i]);
}

#define hash_init(hashtable) __hash_init(hashtable, HASH_SIZE(hashtable))

#define hash_add(hashtable, node, key)						\
	hlist_add_head(node, &hashtable[hash_min(key, HASH_BITS(hashtable))])

static inline bool hash_hashed(struct hlist_node *node)
{
	return !hlist_unhashed(node);
}

static inline bool __hash_empty(struct hlist_head *ht, unsigned int sz)
{
	unsigned int i;

	for (i = 0; i < sz; i++)
		if (!hlist_empty(&ht[i]))
			return false;

	return true;
}

#define hash_empty(hashtable) __hash_empty(hashtable, HASH_SIZE(hashtable))

static inline void hash_del(struct hlist_node *node)
{
	hlist_del_init(node);
}
#endif /* RHEL >= 6.6 */

/* We don't have @flags support prior to 3.7, so we'll simply ignore the flags
 * parameter on these older kernels.
 */
#define __setup_timer(_timer, _fn, _data, _flags)	\
	setup_timer((_timer), (_fn), (_data))		\

#if ( ! ( RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,7) ) ) && \
	( ! ( SLE_VERSION_CODE >= SLE_VERSION(12,0,0) ) )

#ifndef mod_delayed_work
/**
 * __mod_delayed_work - modify delay or queue delayed work
 * @wq: workqueue to use
 * @dwork: delayed work to queue
 * @delay: number of jiffies to wait before queueing
 *
 * Return: %true if @dwork was pending and was rescheduled;
 *         %false if it wasn't pending
 *
 * Note: the dwork parameter was declared as a void*
 *       to avoid comptibility problems with early 2.6 kernels
 *       where struct delayed_work is not declared. Unlike the original
 *       implementation flags are not preserved and it shouldn't be
 *       used in the interrupt context.
 */
static inline bool __mod_delayed_work(struct workqueue_struct *wq,
				    void *dwork,
				    unsigned long delay)
{
	bool ret = cancel_delayed_work(dwork);
	queue_delayed_work(wq, dwork, delay);
	return ret;
}
#define mod_delayed_work(wq, dwork, delay) __mod_delayed_work(wq, dwork, delay)
#endif /* mod_delayed_work */

#endif /* !(RHEL >= 6.7) && !(SLE >= 12.0) */
#else /* >= 3.7.0 */
#include <linux/hashtable.h>
#define HAVE_CONST_STRUCT_PCI_ERROR_HANDLERS
#define USE_CONST_DEV_UC_CHAR
#define HAVE_NDO_FDB_ADD_NLATTR
#endif /* >= 3.7.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,8,0) )
#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,5)) && \
     !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,4,0)))
#ifndef pci_sriov_set_totalvfs
static inline int __kc_pci_sriov_set_totalvfs(struct pci_dev __always_unused *dev, u16 __always_unused numvfs)
{
	return 0;
}
#define pci_sriov_set_totalvfs(a, b) __kc_pci_sriov_set_totalvfs((a), (b))
#endif
#endif /* !(RHEL_RELEASE_CODE >= 6.5 && SLE_VERSION_CODE >= 11.4) */
#ifndef PCI_EXP_LNKCTL_ASPM_L0S
#define  PCI_EXP_LNKCTL_ASPM_L0S  0x01	/* L0s Enable */
#endif
#ifndef PCI_EXP_LNKCTL_ASPM_L1
#define  PCI_EXP_LNKCTL_ASPM_L1   0x02	/* L1 Enable */
#endif
#define HAVE_CONFIG_HOTPLUG
/* Reserved Ethernet Addresses per IEEE 802.1Q */
static const u8 eth_reserved_addr_base[ETH_ALEN] __aligned(2) = {
	0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 };

#ifndef is_link_local_ether_addr
static inline bool __kc_is_link_local_ether_addr(const u8 *addr)
{
	__be16 *a = (__be16 *)addr;
	static const __be16 *b = (const __be16 *)eth_reserved_addr_base;
	static const __be16 m = cpu_to_be16(0xfff0);

	return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | ((a[2] ^ b[2]) & m)) == 0;
}
#define is_link_local_ether_addr(addr) __kc_is_link_local_ether_addr(addr)
#endif /* is_link_local_ether_addr */

#ifndef FLOW_MAC_EXT
#define FLOW_MAC_EXT	0x40000000
#endif /* FLOW_MAC_EXT */

#if (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,4,0))
#define HAVE_SRIOV_CONFIGURE
#endif

#ifndef PCI_EXP_LNKCAP_SLS_2_5GB
#define PCI_EXP_LNKCAP_SLS_2_5GB 0x00000001 /* LNKCAP2 SLS Vector bit 0 */
#endif

#ifndef PCI_EXP_LNKCAP_SLS_5_0GB
#define PCI_EXP_LNKCAP_SLS_5_0GB 0x00000002 /* LNKCAP2 SLS Vector bit 1 */
#endif

#undef PCI_EXP_LNKCAP2_SLS_2_5GB
#define PCI_EXP_LNKCAP2_SLS_2_5GB 0x00000002 /* Supported Speed 2.5GT/s */

#undef PCI_EXP_LNKCAP2_SLS_5_0GB
#define PCI_EXP_LNKCAP2_SLS_5_0GB 0x00000004 /* Supported Speed 5GT/s */

#undef PCI_EXP_LNKCAP2_SLS_8_0GB
#define PCI_EXP_LNKCAP2_SLS_8_0GB 0x00000008 /* Supported Speed 8GT/s */

#else /* >= 3.8.0 */
#ifndef __devinit
#define __devinit
#endif

#ifndef __devinitdata
#define __devinitdata
#endif

#ifndef __devinitconst
#define __devinitconst
#endif

#ifndef __devexit
#define __devexit
#endif

#ifndef __devexit_p
#define __devexit_p
#endif

#ifndef HAVE_ENCAP_CSUM_OFFLOAD
#define HAVE_ENCAP_CSUM_OFFLOAD
#endif

#ifndef HAVE_GRE_ENCAP_OFFLOAD
#define HAVE_GRE_ENCAP_OFFLOAD
#endif

#ifndef HAVE_SRIOV_CONFIGURE
#define HAVE_SRIOV_CONFIGURE
#endif

#define HAVE_BRIDGE_ATTRIBS
#ifndef BRIDGE_MODE_VEB
#define BRIDGE_MODE_VEB		0	/* Default loopback mode */
#endif /* BRIDGE_MODE_VEB */
#ifndef BRIDGE_MODE_VEPA
#define BRIDGE_MODE_VEPA	1	/* 802.1Qbg defined VEPA mode */
#endif /* BRIDGE_MODE_VEPA */
#endif /* >= 3.8.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,9,0) )

#undef BUILD_BUG_ON
#ifdef __CHECKER__
#define BUILD_BUG_ON(condition) (0)
#else /* __CHECKER__ */
#ifndef __compiletime_warning
#if defined(__GNUC__) && ((__GNUC__ * 10000 + __GNUC_MINOR__ * 100) >= 40400)
#define __compiletime_warning(message) __attribute__((warning(message)))
#else /* __GNUC__ */
#define __compiletime_warning(message)
#endif /* __GNUC__ */
#endif /* __compiletime_warning */
#ifndef __compiletime_error
#if defined(__GNUC__) && ((__GNUC__ * 10000 + __GNUC_MINOR__ * 100) >= 40400)
#define __compiletime_error(message) __attribute__((error(message)))
#define __compiletime_error_fallback(condition) do { } while (0)
#else /* __GNUC__ */
#define __compiletime_error(message)
#define __compiletime_error_fallback(condition) \
	do { ((void)sizeof(char[1 - 2 * condition])); } while (0)
#endif /* __GNUC__ */
#else /* __compiletime_error */
#define __compiletime_error_fallback(condition) do { } while (0)
#endif /* __compiletime_error */
#define __compiletime_assert(condition, msg, prefix, suffix)		\
	do {								\
		bool __cond = !(condition);				\
		extern void prefix ## suffix(void) __compiletime_error(msg); \
		if (__cond)						\
			prefix ## suffix();				\
		__compiletime_error_fallback(__cond);			\
	} while (0)

#define _compiletime_assert(condition, msg, prefix, suffix) \
	__compiletime_assert(condition, msg, prefix, suffix)
#define compiletime_assert(condition, msg) \
	_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
#ifndef __OPTIMIZE__
#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
#else /* __OPTIMIZE__ */
#define BUILD_BUG_ON(condition) \
	BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
#endif /* __OPTIMIZE__ */
#endif /* __CHECKER__ */

#undef hlist_entry
#define hlist_entry(ptr, type, member) container_of(ptr,type,member)

#undef hlist_entry_safe
#define hlist_entry_safe(ptr, type, member) \
	({ typeof(ptr) ____ptr = (ptr); \
	   ____ptr ? hlist_entry(____ptr, type, member) : NULL; \
	})

#undef hlist_for_each_entry
#define hlist_for_each_entry(pos, head, member)                             \
	for (pos = hlist_entry_safe((head)->first, typeof(*(pos)), member); \
	     pos;                                                           \
	     pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))

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

#undef hlist_for_each_entry_continue
#define hlist_for_each_entry_continue(pos, member)			\
	for (pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member);\
	     pos;							\
	     pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))

#undef hlist_for_each_entry_from
#define hlist_for_each_entry_from(pos, member)				\
	for (; pos;							\
	     pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))

#undef hash_for_each
#define hash_for_each(name, bkt, obj, member)				\
	for ((bkt) = 0, obj = NULL; obj == NULL && (bkt) < HASH_SIZE(name);\
			(bkt)++)\
		hlist_for_each_entry(obj, &name[bkt], member)

#undef hash_for_each_safe
#define hash_for_each_safe(name, bkt, tmp, obj, member)			\
	for ((bkt) = 0, obj = NULL; obj == NULL && (bkt) < HASH_SIZE(name);\
			(bkt)++)\
		hlist_for_each_entry_safe(obj, tmp, &name[bkt], member)

#undef hash_for_each_possible
#define hash_for_each_possible(name, obj, member, key)			\
	hlist_for_each_entry(obj, &name[hash_min(key, HASH_BITS(name))], member)

#undef hash_for_each_possible_safe
#define hash_for_each_possible_safe(name, obj, tmp, member, key)	\
	hlist_for_each_entry_safe(obj, tmp,\
		&name[hash_min(key, HASH_BITS(name))], member)

#ifdef CONFIG_XPS
int __kc_netif_set_xps_queue(struct net_device *, const struct cpumask *, u16);
#define netif_set_xps_queue(_dev, _mask, _idx) __kc_netif_set_xps_queue((_dev), (_mask), (_idx))
#else /* CONFIG_XPS */
#define netif_set_xps_queue(_dev, _mask, _idx) do {} while (0)
#endif /* CONFIG_XPS */

#ifdef HAVE_NETDEV_SELECT_QUEUE
#define _kc_hashrnd 0xd631614b /* not so random hash salt */
u16 __kc_netdev_pick_tx(struct net_device *dev, struct sk_buff *skb);
#define __netdev_pick_tx __kc_netdev_pick_tx
#endif /* HAVE_NETDEV_SELECT_QUEUE */
#else
#define HAVE_BRIDGE_FILTER
#define HAVE_FDB_DEL_NLATTR
#endif /* < 3.9.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0) )
#ifndef NAPI_POLL_WEIGHT
#define NAPI_POLL_WEIGHT 64
#endif
#ifdef CONFIG_PCI_IOV
int __kc_pci_vfs_assigned(struct pci_dev *dev);
#else
static inline int __kc_pci_vfs_assigned(struct pci_dev __always_unused *dev)
{
	return 0;
}
#endif
#define pci_vfs_assigned(dev) __kc_pci_vfs_assigned(dev)

#ifndef list_first_entry_or_null
#define list_first_entry_or_null(ptr, type, member) \
	(!list_empty(ptr) ? list_first_entry(ptr, type, member) : NULL)
#endif

#ifndef VLAN_TX_COOKIE_MAGIC
static inline struct sk_buff *__kc__vlan_hwaccel_put_tag(struct sk_buff *skb,
							 u16 vlan_tci)
{
#ifdef VLAN_TAG_PRESENT
	vlan_tci |= VLAN_TAG_PRESENT;
#endif
	skb->vlan_tci = vlan_tci;
        return skb;
}
#define __vlan_hwaccel_put_tag(skb, vlan_proto, vlan_tci) \
	__kc__vlan_hwaccel_put_tag(skb, vlan_tci)
#endif

#ifdef HAVE_FDB_OPS
#if defined(HAVE_NDO_FDB_ADD_NLATTR)
int __kc_ndo_dflt_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
			  struct net_device *dev,
			  const unsigned char *addr, u16 flags);
#elif defined(USE_CONST_DEV_UC_CHAR)
int __kc_ndo_dflt_fdb_add(struct ndmsg *ndm, struct net_device *dev,
			  const unsigned char *addr, u16 flags);
#else
int __kc_ndo_dflt_fdb_add(struct ndmsg *ndm, struct net_device *dev,
			  unsigned char *addr, u16 flags);
#endif /* HAVE_NDO_FDB_ADD_NLATTR */
#if defined(HAVE_FDB_DEL_NLATTR)
int __kc_ndo_dflt_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
			  struct net_device *dev,
			  const unsigned char *addr);
#elif defined(USE_CONST_DEV_UC_CHAR)
int __kc_ndo_dflt_fdb_del(struct ndmsg *ndm, struct net_device *dev,
			  const unsigned char *addr);
#else
int __kc_ndo_dflt_fdb_del(struct ndmsg *ndm, struct net_device *dev,
			  unsigned char *addr);
#endif /* HAVE_FDB_DEL_NLATTR */
#define ndo_dflt_fdb_add __kc_ndo_dflt_fdb_add
#define ndo_dflt_fdb_del __kc_ndo_dflt_fdb_del
#endif /* HAVE_FDB_OPS */

#ifndef PCI_DEVID
#define PCI_DEVID(bus, devfn)  ((((u16)(bus)) << 8) | (devfn))
#endif

/* The definitions for these functions when CONFIG_OF_NET is defined are
 * pulled in from <linux/of_net.h>. For kernels older than 3.5 we already have
 * backports for when CONFIG_OF_NET is true. These are separated and
 * duplicated in order to cover all cases so that all kernels get either the
 * real definitions (when CONFIG_OF_NET is defined) or the stub definitions
 * (when CONFIG_OF_NET is not defined, or the kernel is too old to have real
 * definitions).
 */
#ifndef CONFIG_OF_NET
static inline int of_get_phy_mode(struct device_node __always_unused *np)
{
	return -ENODEV;
}

static inline const void *
of_get_mac_address(struct device_node __always_unused *np)
{
	return NULL;
}
#endif

#else /* >= 3.10.0 */
#define HAVE_ENCAP_TSO_OFFLOAD
#define USE_DEFAULT_FDB_DEL_DUMP
#define HAVE_SKB_INNER_NETWORK_HEADER

#if (RHEL_RELEASE_CODE && \
     (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,0)))
#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(8,0))
#define HAVE_RHEL7_PCI_DRIVER_RH
#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2))
#define HAVE_RHEL7_PCI_RESET_NOTIFY
#endif /* RHEL >= 7.2 */
#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,3))
#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,5))
#define HAVE_GENEVE_RX_OFFLOAD
#endif /* RHEL < 7.5 */
#define HAVE_ETHTOOL_FLOW_UNION_IP6_SPEC
#define HAVE_RHEL7_NET_DEVICE_OPS_EXT
#if !defined(HAVE_UDP_ENC_TUNNEL) && IS_ENABLED(CONFIG_GENEVE)
#define HAVE_UDP_ENC_TUNNEL
#endif /* !HAVE_UDP_ENC_TUNNEL && CONFIG_GENEVE */
#endif /* RHEL >= 7.3 */

/* new hooks added to net_device_ops_extended in RHEL7.4 */
#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
#define HAVE_RHEL7_NETDEV_OPS_EXT_NDO_SET_VF_VLAN
#define HAVE_RHEL7_NETDEV_OPS_EXT_NDO_UDP_TUNNEL
#define HAVE_UDP_ENC_RX_OFFLOAD
#endif /* RHEL >= 7.4 */
#else  /* RHEL >= 8.0 */
#define HAVE_TCF_BLOCK_CB_REGISTER_EXTACK
#define NO_NETDEV_BPF_PROG_ATTACHED
#define HAVE_NDO_SELECT_QUEUE_SB_DEV
#endif /* RHEL >= 8.0 */
#endif /* RHEL >= 7.0 */
#endif /* >= 3.10.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,11,0) )
#define netdev_notifier_info_to_dev(ptr) ptr
#ifndef time_in_range64
#define time_in_range64(a, b, c) \
	(time_after_eq64(a, b) && \
	 time_before_eq64(a, c))
#endif /* time_in_range64 */
#if ((RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,6)) ||\
     (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,4,0)))
#define HAVE_NDO_SET_VF_LINK_STATE
#endif
#if RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2))
#define HAVE_NDO_SELECT_QUEUE_ACCEL_FALLBACK
#endif
#else /* >= 3.11.0 */
#define HAVE_NDO_SET_VF_LINK_STATE
#define HAVE_SKB_INNER_PROTOCOL
#define HAVE_MPLS_FEATURES
#endif /* >= 3.11.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,12,0) )
int __kc_pcie_get_minimum_link(struct pci_dev *dev, enum pci_bus_speed *speed,
			       enum pcie_link_width *width);
#ifndef pcie_get_minimum_link
#define pcie_get_minimum_link(_p, _s, _w) __kc_pcie_get_minimum_link(_p, _s, _w)
#endif

#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(6,7))
int _kc_pci_wait_for_pending_transaction(struct pci_dev *dev);
#define pci_wait_for_pending_transaction _kc_pci_wait_for_pending_transaction
#endif /* <RHEL6.7 */

#else /* >= 3.12.0 */
#if ( SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(12,0,0))
#define HAVE_NDO_SELECT_QUEUE_ACCEL_FALLBACK
#endif
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(4,8,0) )
#define HAVE_VXLAN_RX_OFFLOAD
#if !defined(HAVE_UDP_ENC_TUNNEL) && IS_ENABLED(CONFIG_VXLAN)
#define HAVE_UDP_ENC_TUNNEL
#endif
#endif /* < 4.8.0 */
#define HAVE_NDO_GET_PHYS_PORT_ID
#define HAVE_NETIF_SET_XPS_QUEUE_CONST_MASK
#endif /* >= 3.12.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0) )
#define dma_set_mask_and_coherent(_p, _m) __kc_dma_set_mask_and_coherent(_p, _m)
int __kc_dma_set_mask_and_coherent(struct device *dev, u64 mask);
#ifndef u64_stats_init
#define u64_stats_init(a) do { } while(0)
#endif
#undef BIT_ULL
#define BIT_ULL(n) (1ULL << (n))

#if (!(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(12,0,0)) && \
     !(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,0)))
static inline struct pci_dev *pci_upstream_bridge(struct pci_dev *dev)
{
	dev = pci_physfn(dev);
	if (pci_is_root_bus(dev->bus))
		return NULL;

	return dev->bus->self;
}
#endif

#if (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(12,1,0))
#undef HAVE_STRUCT_PAGE_PFMEMALLOC
#define HAVE_DCBNL_OPS_SETAPP_RETURN_INT
#endif
#ifndef list_next_entry
#define list_next_entry(pos, member) \
	list_entry((pos)->member.next, typeof(*(pos)), member)
#endif
#ifndef list_prev_entry
#define list_prev_entry(pos, member) \
	list_entry((pos)->member.prev, typeof(*(pos)), member)
#endif

#if ( LINUX_VERSION_CODE > KERNEL_VERSION(2,6,20) )
#define devm_kcalloc(dev, cnt, size, flags) \
	devm_kzalloc(dev, (cnt) * (size), flags)
#endif /* > 2.6.20 */

#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2)))
#define list_last_entry(ptr, type, member) list_entry((ptr)->prev, type, member)
#endif

#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0))
bool _kc_pci_device_is_present(struct pci_dev *pdev);
#define pci_device_is_present _kc_pci_device_is_present
#endif /* <RHEL7.0 */
#else /* >= 3.13.0 */
#define HAVE_VXLAN_CHECKS
#if (UBUNTU_VERSION_CODE && UBUNTU_VERSION_CODE >= UBUNTU_VERSION(3,13,0,24))
#define HAVE_NDO_SELECT_QUEUE_ACCEL_FALLBACK
#else
#define HAVE_NDO_SELECT_QUEUE_ACCEL
#endif
#define HAVE_HWMON_DEVICE_REGISTER_WITH_GROUPS
#endif

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,14,0) )

#ifndef U16_MAX
#define U16_MAX ((u16)~0U)
#endif

#ifndef U32_MAX
#define U32_MAX ((u32)~0U)
#endif

#ifndef U64_MAX
#define U64_MAX ((u64)~0ULL)
#endif

#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2)))
#define dev_consume_skb_any(x) dev_kfree_skb_any(x)
#define dev_consume_skb_irq(x) dev_kfree_skb_irq(x)
#endif

#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,0)) && \
     !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(12,0,0)))

/* it isn't expected that this would be a #define unless we made it so */
#ifndef skb_set_hash

#define PKT_HASH_TYPE_NONE	0
#define PKT_HASH_TYPE_L2	1
#define PKT_HASH_TYPE_L3	2
#define PKT_HASH_TYPE_L4	3

enum _kc_pkt_hash_types {
	_KC_PKT_HASH_TYPE_NONE = PKT_HASH_TYPE_NONE,
	_KC_PKT_HASH_TYPE_L2 = PKT_HASH_TYPE_L2,
	_KC_PKT_HASH_TYPE_L3 = PKT_HASH_TYPE_L3,
	_KC_PKT_HASH_TYPE_L4 = PKT_HASH_TYPE_L4,
};
#define pkt_hash_types         _kc_pkt_hash_types

#define skb_set_hash __kc_skb_set_hash
static inline void __kc_skb_set_hash(struct sk_buff __maybe_unused *skb,
				     u32 __maybe_unused hash,
				     int __maybe_unused type)
{
#ifdef HAVE_SKB_L4_RXHASH
	skb->l4_rxhash = (type == PKT_HASH_TYPE_L4);
#endif
#ifdef NETIF_F_RXHASH
	skb->rxhash = hash;
#endif
}
#endif /* !skb_set_hash */

#else	/* RHEL_RELEASE_CODE >= 7.0 || SLE_VERSION_CODE >= 12.0 */

#if ((RHEL_RELEASE_CODE && RHEL_RELEASE_CODE <= RHEL_RELEASE_VERSION(7,0)) ||\
     (SLE_VERSION_CODE && SLE_VERSION_CODE <= SLE_VERSION(12,1,0)))
/* GPLv2 code taken from 5.10-rc2 kernel source include/linux/pci.h, Copyright
 * original authors.
 */
static inline int pci_enable_msix_exact(struct pci_dev *dev,
					struct msix_entry *entries, int nvec)
{
	int rc = pci_enable_msix_range(dev, entries, nvec, nvec);
	if (rc < 0)
		return rc;
	return 0;
}
#endif /* <=EL7.0 || <=SLES 12.1 */
#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5)))
#ifndef HAVE_VXLAN_RX_OFFLOAD
#define HAVE_VXLAN_RX_OFFLOAD
#endif /* HAVE_VXLAN_RX_OFFLOAD */
#endif

#if !defined(HAVE_UDP_ENC_TUNNEL) && IS_ENABLED(CONFIG_VXLAN)
#define HAVE_UDP_ENC_TUNNEL
#endif

#ifndef HAVE_VXLAN_CHECKS
#define HAVE_VXLAN_CHECKS
#endif /* HAVE_VXLAN_CHECKS */
#endif /* !(RHEL_RELEASE_CODE >= 7.0 && SLE_VERSION_CODE >= 12.0) */

#if ((RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,3)) ||\
     (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(12,0,0)))
#define HAVE_NDO_DFWD_OPS
#endif

#ifndef pci_enable_msix_range
int __kc_pci_enable_msix_range(struct pci_dev *dev, struct msix_entry *entries,
			       int minvec, int maxvec);
#define pci_enable_msix_range __kc_pci_enable_msix_range
#endif

#ifndef ether_addr_copy
#define ether_addr_copy __kc_ether_addr_copy
static inline void __kc_ether_addr_copy(u8 *dst, const u8 *src)
{
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
	*(u32 *)dst = *(const u32 *)src;
	*(u16 *)(dst + 4) = *(const u16 *)(src + 4);
#else
	u16 *a = (u16 *)dst;
	const u16 *b = (const u16 *)src;

	a[0] = b[0];
	a[1] = b[1];
	a[2] = b[2];
#endif
}
#endif /* ether_addr_copy */
int __kc_ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
		       int target, unsigned short *fragoff, int *flags);
#define ipv6_find_hdr(a, b, c, d, e) __kc_ipv6_find_hdr((a), (b), (c), (d), (e))

#ifndef OPTIMIZE_HIDE_VAR
#ifdef __GNUC__
#define OPTIMIZER_HIDE_VAR(var) __asm__ ("" : "=r" (var) : "0" (var))
#else
#include <linux/barrier.h>
#define OPTIMIZE_HIDE_VAR(var)	barrier()
#endif
#endif

#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,0)) && \
     !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(10,4,0)))
static inline __u32 skb_get_hash_raw(const struct sk_buff *skb)
{
#ifdef NETIF_F_RXHASH
	return skb->rxhash;
#else
	return 0;
#endif /* NETIF_F_RXHASH */
}
#endif /* !RHEL > 5.9 && !SLES >= 10.4 */

#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,5))
#define request_firmware_direct	request_firmware
#endif /* !RHEL || RHEL < 7.5 */

#else /* >= 3.14.0 */

/* for ndo_dfwd_ ops add_station, del_station and _start_xmit */
#ifndef HAVE_NDO_DFWD_OPS
#define HAVE_NDO_DFWD_OPS
#endif
#define HAVE_NDO_SELECT_QUEUE_ACCEL_FALLBACK
#endif /* 3.14.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,15,0) )
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35) )
#define HAVE_SKBUFF_RXHASH
#endif /* >= 2.6.35 */
#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,1)) && \
     !(UBUNTU_VERSION_CODE && UBUNTU_VERSION_CODE >= UBUNTU_VERSION(3,13,0,30)))
#define u64_stats_fetch_begin_irq u64_stats_fetch_begin_bh
#define u64_stats_fetch_retry_irq u64_stats_fetch_retry_bh
#endif

char *_kc_devm_kstrdup(struct device *dev, const char *s, gfp_t gfp);
#define devm_kstrdup(dev, s, gfp) _kc_devm_kstrdup(dev, s, gfp)

#else /* >= 3.15.0 */
#define HAVE_NET_GET_RANDOM_ONCE
#define HAVE_PTP_1588_CLOCK_PINS
#define HAVE_NETDEV_PORT
#endif /* 3.15.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,16,0) )
#ifndef smp_mb__before_atomic
#define smp_mb__before_atomic() smp_mb()
#define smp_mb__after_atomic()  smp_mb()
#endif
#ifndef __dev_uc_sync
#ifdef HAVE_SET_RX_MODE
#ifdef NETDEV_HW_ADDR_T_UNICAST
int __kc_hw_addr_sync_dev(struct netdev_hw_addr_list *list,
		struct net_device *dev,
		int (*sync)(struct net_device *, const unsigned char *),
		int (*unsync)(struct net_device *, const unsigned char *));
void __kc_hw_addr_unsync_dev(struct netdev_hw_addr_list *list,
		struct net_device *dev,
		int (*unsync)(struct net_device *, const unsigned char *));
#endif
#ifndef NETDEV_HW_ADDR_T_MULTICAST
int __kc_dev_addr_sync_dev(struct dev_addr_list **list, int *count,
		struct net_device *dev,
		int (*sync)(struct net_device *, const unsigned char *),
		int (*unsync)(struct net_device *, const unsigned char *));
void __kc_dev_addr_unsync_dev(struct dev_addr_list **list, int *count,
		struct net_device *dev,
		int (*unsync)(struct net_device *, const unsigned char *));
#endif
#endif /* HAVE_SET_RX_MODE */

static inline int __kc_dev_uc_sync(struct net_device __maybe_unused *dev,
				   int __maybe_unused (*sync)(struct net_device *, const unsigned char *),
				   int __maybe_unused (*unsync)(struct net_device *, const unsigned char *))
{
#ifdef NETDEV_HW_ADDR_T_UNICAST
	return __kc_hw_addr_sync_dev(&dev->uc, dev, sync, unsync);
#elif defined(HAVE_SET_RX_MODE)
	return __kc_dev_addr_sync_dev(&dev->uc_list, &dev->uc_count,
				      dev, sync, unsync);
#else
	return 0;
#endif
}
#define __dev_uc_sync __kc_dev_uc_sync

static inline void __kc_dev_uc_unsync(struct net_device __maybe_unused *dev,
				      int __maybe_unused (*unsync)(struct net_device *, const unsigned char *))
{
#ifdef HAVE_SET_RX_MODE
#ifdef NETDEV_HW_ADDR_T_UNICAST
	__kc_hw_addr_unsync_dev(&dev->uc, dev, unsync);
#else /* NETDEV_HW_ADDR_T_MULTICAST */
	__kc_dev_addr_unsync_dev(&dev->uc_list, &dev->uc_count, dev, unsync);
#endif /* NETDEV_HW_ADDR_T_UNICAST */
#endif /* HAVE_SET_RX_MODE */
}
#define __dev_uc_unsync __kc_dev_uc_unsync

static inline int __kc_dev_mc_sync(struct net_device __maybe_unused *dev,
				   int __maybe_unused (*sync)(struct net_device *, const unsigned char *),
				   int __maybe_unused (*unsync)(struct net_device *, const unsigned char *))
{
#ifdef NETDEV_HW_ADDR_T_MULTICAST
	return __kc_hw_addr_sync_dev(&dev->mc, dev, sync, unsync);
#elif defined(HAVE_SET_RX_MODE)
	return __kc_dev_addr_sync_dev(&dev->mc_list, &dev->mc_count,
				      dev, sync, unsync);
#else
	return 0;
#endif

}
#define __dev_mc_sync __kc_dev_mc_sync

static inline void __kc_dev_mc_unsync(struct net_device __maybe_unused *dev,
				      int __maybe_unused (*unsync)(struct net_device *, const unsigned char *))
{
#ifdef HAVE_SET_RX_MODE
#ifdef NETDEV_HW_ADDR_T_MULTICAST
	__kc_hw_addr_unsync_dev(&dev->mc, dev, unsync);
#else /* NETDEV_HW_ADDR_T_MULTICAST */
	__kc_dev_addr_unsync_dev(&dev->mc_list, &dev->mc_count, dev, unsync);
#endif /* NETDEV_HW_ADDR_T_MULTICAST */
#endif /* HAVE_SET_RX_MODE */
}
#define __dev_mc_unsync __kc_dev_mc_unsync
#endif /* __dev_uc_sync */

#if RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,1))
#define HAVE_NDO_SET_VF_MIN_MAX_TX_RATE
#endif

#ifndef NETIF_F_GSO_UDP_TUNNEL_CSUM
/* if someone backports this, hopefully they backport as a #define.
 * declare it as zero on older kernels so that if it get's or'd in
 * it won't effect anything, therefore preventing core driver changes
 */
#define NETIF_F_GSO_UDP_TUNNEL_CSUM 0
#define SKB_GSO_UDP_TUNNEL_CSUM 0
#endif
void *__kc_devm_kmemdup(struct device *dev, const void *src, size_t len,
			gfp_t gfp);
#define devm_kmemdup __kc_devm_kmemdup

#else
#if ( ( LINUX_VERSION_CODE < KERNEL_VERSION(4,13,0) ) && \
      ! ( SLE_VERSION_CODE && ( SLE_VERSION_CODE >= SLE_VERSION(12,4,0)) ) )
#define HAVE_PCI_ERROR_HANDLER_RESET_NOTIFY
#endif /* >= 3.16.0 && < 4.13.0 && !(SLES >= 12sp4) */
#define HAVE_NDO_SET_VF_MIN_MAX_TX_RATE
#endif /* 3.16.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,17,0) )
#if !(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,8) && \
      RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)) && \
    !(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2))
#ifndef timespec64
#define timespec64 timespec
static inline struct timespec64 timespec_to_timespec64(const struct timespec ts)
{
	return ts;
}
static inline struct timespec timespec64_to_timespec(const struct timespec64 ts64)
{
	return ts64;
}
#define timespec64_equal timespec_equal
#define timespec64_compare timespec_compare
#define set_normalized_timespec64 set_normalized_timespec
#define timespec64_add_safe timespec_add_safe
#define timespec64_add timespec_add
#define timespec64_sub timespec_sub
#define timespec64_valid timespec_valid
#define timespec64_valid_strict timespec_valid_strict
#define timespec64_to_ns timespec_to_ns
#define ns_to_timespec64 ns_to_timespec
#define ktime_to_timespec64 ktime_to_timespec
#define ktime_get_ts64 ktime_get_ts
#define ktime_get_real_ts64 ktime_get_real_ts
#define timespec64_add_ns timespec_add_ns
#endif /* timespec64 */
#endif /* !(RHEL6.8<RHEL7.0) && !RHEL7.2+ */

#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,8) && \
     RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0))
static inline void ktime_get_real_ts64(struct timespec64 *ts)
{
	*ts = ktime_to_timespec64(ktime_get_real());
}

static inline void ktime_get_ts64(struct timespec64 *ts)
{
	*ts = ktime_to_timespec64(ktime_get());
}
#endif

#if !(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
#define hlist_add_behind(_a, _b) hlist_add_after(_b, _a)
#endif

#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,5))
#endif /* RHEL_RELEASE_CODE < RHEL7.5 */

#if RHEL_RELEASE_CODE && \
	RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(6,3) && \
	RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,3)
static inline u64 ktime_get_ns(void)
{
	return ktime_to_ns(ktime_get());
}

static inline u64 ktime_get_real_ns(void)
{
	return ktime_to_ns(ktime_get_real());
}

static inline u64 ktime_get_boot_ns(void)
{
	return ktime_to_ns(ktime_get_boottime());
}
#endif /* RHEL < 7.3 */

#else
#define HAVE_DCBNL_OPS_SETAPP_RETURN_INT
#include <linux/time64.h>
#define HAVE_RHASHTABLE
#endif /* 3.17.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0) )
#ifndef NO_PTP_SUPPORT
#include <linux/errqueue.h>
struct sk_buff *__kc_skb_clone_sk(struct sk_buff *skb);
void __kc_skb_complete_tx_timestamp(struct sk_buff *skb,
				    struct skb_shared_hwtstamps *hwtstamps);
#define skb_clone_sk __kc_skb_clone_sk
#define skb_complete_tx_timestamp __kc_skb_complete_tx_timestamp
#endif
#if (!(RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,2))))
u32 __kc_eth_get_headlen(const struct net_device *dev, unsigned char *data,
			 unsigned int max_len);
#else
unsigned int __kc_eth_get_headlen(unsigned char *data, unsigned int max_len);
#endif /* !RHEL >= 8.2 */

#define eth_get_headlen __kc_eth_get_headlen
#ifndef ETH_P_XDSA
#define ETH_P_XDSA 0x00F8
#endif
/* RHEL 7.1 backported csum_level, but SLES 12 and 12-SP1 did not */
#if RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,1))
#define HAVE_SKBUFF_CSUM_LEVEL
#endif /* >= RH 7.1 */

/* RHEL 7.3 backported xmit_more */
#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,3))
#define HAVE_SKB_XMIT_MORE
#endif /* >= RH 7.3 */

#undef GENMASK
#define GENMASK(h, l) \
	(((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h))))
#undef GENMASK_ULL
#define GENMASK_ULL(h, l) \
	(((~0ULL) << (l)) & (~0ULL >> (BITS_PER_LONG_LONG - 1 - (h))))

#else /*  3.18.0 */
#define HAVE_SKBUFF_CSUM_LEVEL
#define HAVE_SKB_XMIT_MORE
#define HAVE_SKB_INNER_PROTOCOL_TYPE
#endif /* 3.18.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,18,4) )
#else
#define HAVE_NDO_FEATURES_CHECK
#endif /* 3.18.4 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,18,13) )
#ifndef WRITE_ONCE
#define WRITE_ONCE(x, val) ({ ACCESS_ONCE(x) = (val); })
#endif
#endif /* 3.18.13 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,19,0) )
/* netdev_phys_port_id renamed to netdev_phys_item_id */
#define netdev_phys_item_id netdev_phys_port_id

static inline void _kc_napi_complete_done(struct napi_struct *napi,
					  int __always_unused work_done) {
	napi_complete(napi);
}
/* don't use our backport if the distro kernels already have it */
#if (SLE_VERSION_CODE && (SLE_VERSION_CODE < SLE_VERSION(12,3,0))) || \
    (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,5)))
#define napi_complete_done _kc_napi_complete_done
#endif

int _kc_bitmap_print_to_pagebuf(bool list, char *buf,
				const unsigned long *maskp, int nmaskbits);
#define bitmap_print_to_pagebuf _kc_bitmap_print_to_pagebuf

#ifndef NETDEV_RSS_KEY_LEN
#define NETDEV_RSS_KEY_LEN (13 * 4)
#endif
#if (!(RHEL_RELEASE_CODE && \
      ((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,7) && RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)) || \
       (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2)))))
#define netdev_rss_key_fill(buffer, len) __kc_netdev_rss_key_fill(buffer, len)
#endif /* RHEL_RELEASE_CODE */
void __kc_netdev_rss_key_fill(void *buffer, size_t len);
#define SPEED_20000 20000
#define SPEED_40000 40000
#ifndef dma_rmb
#define dma_rmb() rmb()
#endif
#ifndef dev_alloc_pages
#ifndef NUMA_NO_NODE
#define NUMA_NO_NODE -1
#endif
#define dev_alloc_pages(_order) alloc_pages_node(NUMA_NO_NODE, (GFP_ATOMIC | __GFP_COLD | __GFP_COMP | __GFP_MEMALLOC), (_order))
#endif
#ifndef dev_alloc_page
#define dev_alloc_page() dev_alloc_pages(0)
#endif
#if !defined(eth_skb_pad) && !defined(skb_put_padto)
/**
 *     __kc_skb_put_padto - increase size and pad an skbuff up to a minimal size
 *     @skb: buffer to pad
 *     @len: minimal length
 *
 *     Pads up a buffer to ensure the trailing bytes exist and are
 *     blanked. If the buffer already contains sufficient data it
 *     is untouched. Otherwise it is extended. Returns zero on
 *     success. The skb is freed on error.
 */
static inline int __kc_skb_put_padto(struct sk_buff *skb, unsigned int len)
{
	unsigned int size = skb->len;

	if (unlikely(size < len)) {
		len -= size;
		if (skb_pad(skb, len))
			return -ENOMEM;
		__skb_put(skb, len);
	}
	return 0;
}
#define skb_put_padto(skb, len) __kc_skb_put_padto(skb, len)

static inline int __kc_eth_skb_pad(struct sk_buff *skb)
{
	return __kc_skb_put_padto(skb, ETH_ZLEN);
}
#define eth_skb_pad(skb) __kc_eth_skb_pad(skb)
#endif /* eth_skb_pad && skb_put_padto */

#ifndef SKB_ALLOC_NAPI
/* RHEL 7.2 backported napi_alloc_skb and friends */
static inline struct sk_buff *__kc_napi_alloc_skb(struct napi_struct *napi, unsigned int length)
{
	return netdev_alloc_skb_ip_align(napi->dev, length);
}
#define napi_alloc_skb(napi,len) __kc_napi_alloc_skb(napi,len)
#define __napi_alloc_skb(napi,len,mask) __kc_napi_alloc_skb(napi,len)
#endif /* SKB_ALLOC_NAPI */
#define HAVE_CONFIG_PM_RUNTIME
#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(6,7)) && \
     (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)))
#define HAVE_RXFH_HASHFUNC
#endif /* 6.7 < RHEL < 7.0 */
#if RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,1))
#define HAVE_RXFH_HASHFUNC
#define NDO_DFLT_BRIDGE_GETLINK_HAS_BRFLAGS
#endif /* RHEL > 7.1 */
#ifndef napi_schedule_irqoff
#define napi_schedule_irqoff	napi_schedule
#endif
#ifndef READ_ONCE
#define READ_ONCE(_x) ACCESS_ONCE(_x)
#endif
#if RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2))
#define HAVE_NDO_FDB_ADD_VID
#endif
#ifndef ETH_MODULE_SFF_8636
#define ETH_MODULE_SFF_8636		0x3
#endif
#ifndef ETH_MODULE_SFF_8636_LEN
#define ETH_MODULE_SFF_8636_LEN		256
#endif
#ifndef ETH_MODULE_SFF_8436
#define ETH_MODULE_SFF_8436		0x4
#endif
#ifndef ETH_MODULE_SFF_8436_LEN
#define ETH_MODULE_SFF_8436_LEN		256
#endif
#ifndef writel_relaxed
#define writel_relaxed	writel
#endif
#else /* 3.19.0 */
#define HAVE_NDO_FDB_ADD_VID
#define HAVE_RXFH_HASHFUNC
#define NDO_DFLT_BRIDGE_GETLINK_HAS_BRFLAGS
#endif /* 3.19.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,20,0) )
/* vlan_tx_xx functions got renamed to skb_vlan */
#ifndef skb_vlan_tag_get
#define skb_vlan_tag_get vlan_tx_tag_get
#endif
#ifndef skb_vlan_tag_present
#define skb_vlan_tag_present vlan_tx_tag_present
#endif
#if RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,1))
#define HAVE_INCLUDE_LINUX_TIMECOUNTER_H
#endif
#if RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2))
#define HAVE_NDO_BRIDGE_SET_DEL_LINK_FLAGS
#endif
#else
#define HAVE_INCLUDE_LINUX_TIMECOUNTER_H
#define HAVE_NDO_BRIDGE_SET_DEL_LINK_FLAGS
#endif /* 3.20.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0) )
/* Definition for CONFIG_OF was introduced earlier */
#if !defined(CONFIG_OF) && \
    !(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2))
static inline struct device_node *
pci_device_to_OF_node(const struct pci_dev __always_unused *pdev) { return NULL; }
#else /* !CONFIG_OF && RHEL < 7.3 */
#define HAVE_DDP_PROFILE_UPLOAD_SUPPORT
#endif /* !CONFIG_OF && RHEL < 7.3 */
#else /* < 4.0 */
#define HAVE_DDP_PROFILE_UPLOAD_SUPPORT
#endif /* < 4.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(4,1,0) )
#ifndef NO_PTP_SUPPORT
#ifdef HAVE_INCLUDE_LINUX_TIMECOUNTER_H
#include <linux/timecounter.h>
#else
#include <linux/clocksource.h>
#endif
static inline void __kc_timecounter_adjtime(struct timecounter *tc, s64 delta)
{
	tc->nsec += delta;
}

static inline struct net_device *
of_find_net_device_by_node(struct device_node __always_unused *np)
{
	return NULL;
}

#define timecounter_adjtime __kc_timecounter_adjtime
#endif
#if ((RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2))) || \
     (SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,2,0))))
#define HAVE_NDO_SET_VF_RSS_QUERY_EN
#endif
#if RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2))
#define HAVE_NDO_BRIDGE_GETLINK_NLFLAGS
#define HAVE_RHEL7_EXTENDED_NDO_SET_TX_MAXRATE
#define HAVE_NDO_SET_TX_MAXRATE
#endif
#if !((RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(6,8) && RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)) && \
      (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2)) && \
      (SLE_VERSION_CODE > SLE_VERSION(12,1,0)))
unsigned int _kc_cpumask_local_spread(unsigned int i, int node);
#define cpumask_local_spread _kc_cpumask_local_spread
#endif
#ifdef HAVE_RHASHTABLE
#define rhashtable_loopup_fast(ht, key, params)		\
	do {						\
		(void)params;				\
		rhashtable_lookup((ht), (key));		\
	} while (0)

#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,19,0) )
#define rhashtable_insert_fast(ht, obj, params)			\
	do {							\
		(void)params;					\
		rhashtable_insert((ht), (obj), GFP_KERNEL);	\
	} while (0)

#define rhashtable_remove_fast(ht, obj, params)			\
	do {							\
		(void)params;					\
		rhashtable_remove((ht), (obj), GFP_KERNEL);	\
	} while (0)

#else /* >= 3,19,0 */
#define rhashtable_insert_fast(ht, obj, params)			\
	do {							\
		(void)params;					\
		rhashtable_insert((ht), (obj));			\
	} while (0)

#define rhashtable_remove_fast(ht, obj, params)			\
	do {							\
		(void)params;					\
		rhashtable_remove((ht), (obj));			\
	} while (0)

#endif /* 3,19,0 */
#endif /* HAVE_RHASHTABLE */
#else /* >= 4,1,0 */
#define HAVE_NDO_GET_PHYS_PORT_NAME
#define HAVE_PTP_CLOCK_INFO_GETTIME64
#define HAVE_NDO_BRIDGE_GETLINK_NLFLAGS
#define HAVE_PASSTHRU_FEATURES_CHECK
#define HAVE_NDO_SET_VF_RSS_QUERY_EN
#define HAVE_NDO_SET_TX_MAXRATE
#endif /* 4,1,0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,1,9))
#if (!(RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2)) && \
     !((SLE_VERSION_CODE == SLE_VERSION(11,3,0)) && \
       (SLE_LOCALVERSION_CODE >= SLE_LOCALVERSION(0,47,71))) && \
     !((SLE_VERSION_CODE == SLE_VERSION(11,4,0)) && \
       (SLE_LOCALVERSION_CODE >= SLE_LOCALVERSION(65,0,0))) && \
     !(SLE_VERSION_CODE >= SLE_VERSION(12,1,0)))
static inline bool page_is_pfmemalloc(struct page __maybe_unused *page)
{
#ifdef HAVE_STRUCT_PAGE_PFMEMALLOC
	return page->pfmemalloc;
#else
	return false;
#endif
}
#endif /* !RHEL7.2+ && !SLES11sp3(3.0.101-0.47.71+ update) && !SLES11sp4(3.0.101-65+ update) & !SLES12sp1+ */
#else
#undef HAVE_STRUCT_PAGE_PFMEMALLOC
#endif /* 4.1.9 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,2,0))
#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2)) && \
     !(SLE_VERSION_CODE >= SLE_VERSION(12,1,0)))
#define ETHTOOL_RX_FLOW_SPEC_RING	0x00000000FFFFFFFFULL
#define ETHTOOL_RX_FLOW_SPEC_RING_VF	0x000000FF00000000ULL
#define ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF 32
static inline __u64 ethtool_get_flow_spec_ring(__u64 ring_cookie)
{
	return ETHTOOL_RX_FLOW_SPEC_RING & ring_cookie;
};

static inline __u64 ethtool_get_flow_spec_ring_vf(__u64 ring_cookie)
{
	return (ETHTOOL_RX_FLOW_SPEC_RING_VF & ring_cookie) >>
				ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
};
#endif /* ! RHEL >= 7.2 && ! SLES >= 12.1 */
#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
#define HAVE_NDO_DFLT_BRIDGE_GETLINK_VLAN_SUPPORT
#endif

#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,27))
#if (!((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,8) && \
	RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)) || \
       RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2)))
static inline bool pci_ari_enabled(struct pci_bus *bus)
{
	return bus->self && bus->self->ari_enabled;
}
#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2))
#define HAVE_VF_STATS
#endif /* (RHEL7.2+) */
#endif /* !(RHEL6.8+ || RHEL7.2+) */
#else
static inline bool pci_ari_enabled(struct pci_bus *bus)
{
	return false;
}
#endif /* 2.6.27 */
#else
#define HAVE_NDO_DFLT_BRIDGE_GETLINK_VLAN_SUPPORT
#define HAVE_VF_STATS
#endif /* 4.2.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,3,0))
#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4)) && \
     !(SLE_VERSION_CODE >= SLE_VERSION(12,2,0)))
/**
 * _kc_flow_dissector_key_ipv4_addrs:
 * @src: source ip address
 * @dst: destination ip address
 */
struct _kc_flow_dissector_key_ipv4_addrs {
	__be32 src;
	__be32 dst;
};

/**
 * _kc_flow_dissector_key_ipv6_addrs:
 * @src: source ip address
 * @dst: destination ip address
 */
struct _kc_flow_dissector_key_ipv6_addrs {
	struct in6_addr src;
	struct in6_addr dst;
};

/**
 * _kc_flow_dissector_key_addrs:
 * @v4addrs: IPv4 addresses
 * @v6addrs: IPv6 addresses
 */
struct _kc_flow_dissector_key_addrs {
	union {
		struct _kc_flow_dissector_key_ipv4_addrs v4addrs;
		struct _kc_flow_dissector_key_ipv6_addrs v6addrs;
	};
};

/**
 * _kc_flow_dissector_key_tp_ports:
 *	@ports: port numbers of Transport header
 *		src: source port number
 *		dst: destination port number
 */
struct _kc_flow_dissector_key_ports {
	union {
		__be32 ports;
		struct {
			__be16 src;
			__be16 dst;
		};
	};
};

/**
 * _kc_flow_dissector_key_basic:
 * @n_proto: Network header protocol (eg. IPv4/IPv6)
 * @ip_proto: Transport header protocol (eg. TCP/UDP)
 * @padding: padding for alignment
 */
struct _kc_flow_dissector_key_basic {
	__be16	n_proto;
	u8	ip_proto;
	u8	padding;
};

struct _kc_flow_keys {
	struct _kc_flow_dissector_key_basic basic;
	struct _kc_flow_dissector_key_ports ports;
	struct _kc_flow_dissector_key_addrs addrs;
};

/* These are all the include files for kernels inside this #ifdef block that
 * have any reference to the in kernel definition of struct flow_keys. The
 * reason for putting them here is to make 100% sure that these files do not get
 * included after re-defining flow_keys to _kc_flow_keys. This is done to
 * prevent any possible ABI issues that this structure re-definition could case.
 */
#if ((LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0) && \
      LINUX_VERSION_CODE < KERNEL_VERSION(4,2,0)) || \
      RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,7) || \
      SLE_VERSION_CODE >= SLE_VERSION(11,4,0))
#include <net/flow_keys.h>
#endif /* (>= 3.3.0 && < 4.2.0) || >= RHEL 6.7  || >= SLE 11.4 */
#if (LINUX_VERSION_CODE == KERNEL_VERSION(4,2,0))
#include <net/flow_dissector.h>
#endif /* 4.2.0 */
#include <linux/skbuff.h>
#include <net/ip.h>
#include <net/ipv6.h>
#include <net/flow.h>

#define flow_keys _kc_flow_keys
bool
_kc_skb_flow_dissect_flow_keys(const struct sk_buff *skb,
			       struct flow_keys *flow,
			       unsigned int __always_unused flags);
#define skb_flow_dissect_flow_keys	_kc_skb_flow_dissect_flow_keys
#endif /* ! >= RHEL 7.4 && ! >= SLES 12.2 */

#if ((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,3)) || \
     (SLE_VERSION_CODE >= SLE_VERSION(12,2,0)))
#include <net/dst_metadata.h>
#endif /* >= RHEL7.3 || >= SLE12sp2 */
#else /* >= 4.3.0 */
#include <net/dst_metadata.h>
#endif /* 4.3.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,4,0))
#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,3))
#define HAVE_NDO_SET_VF_TRUST
#endif /* (RHEL_RELEASE >= 7.3) */
#ifndef CONFIG_64BIT
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
#include <asm-generic/io-64-nonatomic-lo-hi.h>	/* 32-bit readq/writeq */
#else /* 3.3.0 => 4.3.x */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26))
#include <asm-generic/int-ll64.h>
#endif /* 2.6.26 => 3.3.0 */
#ifndef readq
static inline __u64 readq(const volatile void __iomem *addr)
{
	const volatile u32 __iomem *p = addr;
	u32 low, high;

	low = readl(p);
	high = readl(p + 1);

	return low + ((u64)high << 32);
}
#define readq readq
#endif

#ifndef writeq
static inline void writeq(__u64 val, volatile void __iomem *addr)
{
	writel(val, addr);
	writel(val >> 32, (u8 *)addr + 4);
}
#define writeq writeq
#endif
#endif /* < 3.3.0 */
#endif /* !CONFIG_64BIT */
#else /* < 4.4.0 */
#define HAVE_NDO_SET_VF_TRUST

#ifndef CONFIG_64BIT
#include <linux/io-64-nonatomic-lo-hi.h>	/* 32-bit readq/writeq */
#endif /* !CONFIG_64BIT */
#endif /* 4.4.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0))
/* protect against a likely backport */
#ifndef NETIF_F_CSUM_MASK
#define NETIF_F_CSUM_MASK NETIF_F_ALL_CSUM
#endif /* NETIF_F_CSUM_MASK */
#ifndef NETIF_F_SCTP_CRC
#define NETIF_F_SCTP_CRC NETIF_F_SCTP_CSUM
#endif /* NETIF_F_SCTP_CRC */
#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,3)))
#define eth_platform_get_mac_address _kc_eth_platform_get_mac_address
int _kc_eth_platform_get_mac_address(struct device *dev __maybe_unused,
				     u8 *mac_addr __maybe_unused);
#endif /* !(RHEL_RELEASE >= 7.3) */
#else /* 4.5.0 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(4,8,0) )
#define HAVE_GENEVE_RX_OFFLOAD
#if !defined(HAVE_UDP_ENC_TUNNEL) && IS_ENABLED(CONFIG_GENEVE)
#define HAVE_UDP_ENC_TUNNEL
#endif
#endif /* < 4.8.0 */
#define HAVE_NETIF_NAPI_ADD_CALLS_NAPI_HASH_ADD
#define HAVE_NETDEV_UPPER_INFO
#endif /* 4.5.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0))
#if !(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,3))
static inline unsigned char *skb_checksum_start(const struct sk_buff *skb)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22))
	return skb->head + skb->csum_start;
#else /* < 2.6.22 */
	return skb_transport_header(skb);
#endif
}
#endif

#if !(UBUNTU_VERSION_CODE && \
		UBUNTU_VERSION_CODE >= UBUNTU_VERSION(4,4,0,21)) && \
	!(RHEL_RELEASE_CODE && \
		(RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2))) && \
	!(SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,3,0)))
static inline void napi_consume_skb(struct sk_buff *skb,
				    int __always_unused budget)
{
	dev_consume_skb_any(skb);
}

#endif /* UBUNTU 4,4,0,21, RHEL 7.2, SLES12 SP3 */
#if !(SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,3,0))) && \
	!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
static inline void csum_replace_by_diff(__sum16 *sum, __wsum diff)
{
	* sum = csum_fold(csum_add(diff, ~csum_unfold(*sum)));
}
#endif
#if !(RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2))) && \
	!(SLE_VERSION_CODE && (SLE_VERSION_CODE > SLE_VERSION(12,3,0)))
static inline void page_ref_inc(struct page *page)
{
	get_page(page);
}
#else
#define HAVE_PAGE_COUNT_BULK_UPDATE
#endif
#ifndef IPV4_USER_FLOW
#define	IPV4_USER_FLOW	0x0d	/* spec only (usr_ip4_spec) */
#endif

#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
#define HAVE_TC_SETUP_CLSFLOWER
#define HAVE_TC_FLOWER_ENC
#endif

#if ((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,7)) || \
     (SLE_VERSION_CODE >= SLE_VERSION(12,2,0)))
#define HAVE_TC_SETUP_CLSU32
#endif

#if (SLE_VERSION_CODE >= SLE_VERSION(12,2,0))
#define HAVE_TC_SETUP_CLSFLOWER
#endif

#else /* >= 4.6.0 */
#define HAVE_PAGE_COUNT_BULK_UPDATE
#define HAVE_ETHTOOL_FLOW_UNION_IP6_SPEC
#define HAVE_PTP_CROSSTIMESTAMP
#define HAVE_TC_SETUP_CLSFLOWER
#define HAVE_TC_SETUP_CLSU32
#endif /* 4.6.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0))
#if ((SLE_VERSION_CODE >= SLE_VERSION(12,3,0)) ||\
     (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4)))
#define HAVE_NETIF_TRANS_UPDATE
#endif /* SLES12sp3+ || RHEL7.4+ */
#if ((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,3)) ||\
     (SLE_VERSION_CODE >= SLE_VERSION(12,3,0)))
#define HAVE_ETHTOOL_25G_BITS
#define HAVE_ETHTOOL_50G_BITS
#define HAVE_ETHTOOL_100G_BITS
#endif /* RHEL7.3+ || SLES12sp3+ */
#else /* 4.7.0 */
#define HAVE_NETIF_TRANS_UPDATE
#define HAVE_ETHTOOL_CONVERT_U32_AND_LINK_MODE
#define HAVE_ETHTOOL_25G_BITS
#define HAVE_ETHTOOL_50G_BITS
#define HAVE_ETHTOOL_100G_BITS
#define HAVE_TCF_MIRRED_REDIRECT
#endif /* 4.7.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,8,0))
#if !(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
enum udp_parsable_tunnel_type {
	UDP_TUNNEL_TYPE_VXLAN,
	UDP_TUNNEL_TYPE_GENEVE,
};
struct udp_tunnel_info {
	unsigned short type;
	sa_family_t sa_family;
	__be16 port;
};
#endif

#if (UBUNTU_VERSION_CODE && UBUNTU_VERSION_CODE < UBUNTU_VERSION(4,8,0,0))
#define tc_no_actions(_exts) true
#define tc_for_each_action(_a, _exts) while (0)
#endif
#if !(SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,3,0))) &&\
	!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
static inline int
#ifdef HAVE_NON_CONST_PCI_DRIVER_NAME
pci_request_io_regions(struct pci_dev *pdev, char *name)
#else
pci_request_io_regions(struct pci_dev *pdev, const char *name)
#endif
{
	return pci_request_selected_regions(pdev,
			    pci_select_bars(pdev, IORESOURCE_IO), name);
}

static inline void
pci_release_io_regions(struct pci_dev *pdev)
{
	return pci_release_selected_regions(pdev,
			    pci_select_bars(pdev, IORESOURCE_IO));
}

static inline int
#ifdef HAVE_NON_CONST_PCI_DRIVER_NAME
pci_request_mem_regions(struct pci_dev *pdev, char *name)
#else
pci_request_mem_regions(struct pci_dev *pdev, const char *name)
#endif
{
	return pci_request_selected_regions(pdev,
			    pci_select_bars(pdev, IORESOURCE_MEM), name);
}

static inline void
pci_release_mem_regions(struct pci_dev *pdev)
{
	return pci_release_selected_regions(pdev,
			    pci_select_bars(pdev, IORESOURCE_MEM));
}
#endif /* !SLE_VERSION(12,3,0) */
#if ((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4)) ||\
     (SLE_VERSION_CODE >= SLE_VERSION(12,3,0)))
#define HAVE_ETHTOOL_NEW_50G_BITS
#endif /* RHEL7.4+ || SLES12sp3+ */
#else
#define HAVE_UDP_ENC_RX_OFFLOAD
#define HAVE_ETHTOOL_NEW_50G_BITS
#endif /* 4.8.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,9,0))
#ifdef HAVE_TC_SETUP_CLSFLOWER
#if (!(RHEL_RELEASE_CODE) && !(SLE_VERSION_CODE) || \
    (SLE_VERSION_CODE && (SLE_VERSION_CODE < SLE_VERSION(12,3,0))))
#define HAVE_TC_FLOWER_VLAN_IN_TAGS
#endif /* !RHEL_RELEASE_CODE && !SLE_VERSION_CODE || <SLE_VERSION(12,3,0) */
#endif /* HAVE_TC_SETUP_CLSFLOWER */
#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
#define HAVE_ETHTOOL_NEW_1G_BITS
#define HAVE_ETHTOOL_NEW_10G_BITS
#endif /* RHEL7.4+ */
#if (!(SLE_VERSION_CODE) && !(RHEL_RELEASE_CODE)) || \
     SLE_VERSION_CODE && (SLE_VERSION_CODE <= SLE_VERSION(12,3,0)) || \
     RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE <= RHEL_RELEASE_VERSION(7,5))
#define time_is_before_jiffies64(a)	time_after64(get_jiffies_64(), a)
#endif /* !SLE_VERSION_CODE && !RHEL_RELEASE_CODE || (SLES <= 12.3.0) || (RHEL <= 7.5) */
#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,4))
static inline void bitmap_from_u64(unsigned long *dst, u64 mask)
{
	dst[0] = mask & ULONG_MAX;

	if (sizeof(mask) > sizeof(unsigned long))
		dst[1] = mask >> 32;
}
#endif /* <RHEL7.4 */
#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4)) && \
     !(SLE_VERSION_CODE >= SLE_VERSION(12,3,0)) && \
     !(UBUNTU_VERSION_CODE >= UBUNTU_VERSION(4,13,0,16)))
static inline bool eth_type_vlan(__be16 ethertype)
{
	switch (ethertype) {
	case htons(ETH_P_8021Q):
#ifdef ETH_P_8021AD
	case htons(ETH_P_8021AD):
#endif
		return true;
	default:
		return false;
	}
}
#endif /* Linux < 4.9 || RHEL < 7.4 || SLES < 12.3 || Ubuntu < 4.3.0-16 */
#else /* >=4.9 */
#define HAVE_FLOW_DISSECTOR_KEY_VLAN_PRIO
#define HAVE_ETHTOOL_NEW_1G_BITS
#define HAVE_ETHTOOL_NEW_10G_BITS
#endif /* KERNEL_VERSION(4.9.0) */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,10,0))
/* SLES 12.3 and RHEL 7.5 backported this interface */
#if (!SLE_VERSION_CODE && !RHEL_RELEASE_CODE) || \
    (SLE_VERSION_CODE && (SLE_VERSION_CODE < SLE_VERSION(12,3,0))) || \
    (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,5)))
static inline bool _kc_napi_complete_done2(struct napi_struct *napi,
					   int __always_unused work_done)
{
	/* it was really hard to get napi_complete_done to be safe to call
	 * recursively without running into our own kcompat, so just use
	 * napi_complete
	 */
	napi_complete(napi);

	/* true means that the stack is telling the driver to go-ahead and
	 * re-enable interrupts
	 */
	return true;
}

#ifdef napi_complete_done
#undef napi_complete_done
#endif
#define napi_complete_done _kc_napi_complete_done2
#endif /* sles and rhel exclusion for < 4.10 */
#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
#define HAVE_DEV_WALK_API
#define HAVE_ETHTOOL_NEW_2500MB_BITS
#define HAVE_ETHTOOL_5G_BITS
#endif /* RHEL7.4+ */
#if (SLE_VERSION_CODE && (SLE_VERSION_CODE == SLE_VERSION(12,3,0)))
#define HAVE_STRUCT_DMA_ATTRS
#endif /* (SLES == 12.3.0) */
#if (SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,3,0)))
#define HAVE_NETDEVICE_MIN_MAX_MTU
#endif /* (SLES >= 12.3.0) */
#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5)))
#define HAVE_STRUCT_DMA_ATTRS
#define HAVE_RHEL7_EXTENDED_MIN_MAX_MTU
#define HAVE_NETDEVICE_MIN_MAX_MTU
#endif
#if (!(SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,3,0))) && \
     !(RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5))))
#ifndef dma_map_page_attrs
#define dma_map_page_attrs __kc_dma_map_page_attrs
static inline dma_addr_t __kc_dma_map_page_attrs(struct device *dev,
						 struct page *page,
						 size_t offset, size_t size,
						 enum dma_data_direction dir,
						 unsigned long __always_unused attrs)
{
	return dma_map_page(dev, page, offset, size, dir);
}
#endif

#ifndef dma_unmap_page_attrs
#define dma_unmap_page_attrs __kc_dma_unmap_page_attrs
static inline void __kc_dma_unmap_page_attrs(struct device *dev,
					     dma_addr_t addr, size_t size,
					     enum dma_data_direction dir,
					     unsigned long __always_unused attrs)
{
	dma_unmap_page(dev, addr, size, dir);
}
#endif

static inline void __page_frag_cache_drain(struct page *page,
					   unsigned int count)
{
#ifdef HAVE_PAGE_COUNT_BULK_UPDATE
	if (!page_ref_sub_and_test(page, count))
		return;

	init_page_count(page);
#else
	BUG_ON(count > 1);
	if (!count)
		return;
#endif
	__free_pages(page, compound_order(page));
}
#endif /* !SLE_VERSION(12,3,0) && !RHEL_VERSION(7,5) */
#if ((SLE_VERSION_CODE && (SLE_VERSION_CODE > SLE_VERSION(12,3,0))) ||\
     (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5)))
#define HAVE_SWIOTLB_SKIP_CPU_SYNC
#endif

#if ((SLE_VERSION_CODE && (SLE_VERSION_CODE < SLE_VERSION(15,0,0))) ||\
     (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE <= RHEL_RELEASE_VERSION(7,4))))
#define page_frag_free __free_page_frag
#endif
#ifndef ETH_MIN_MTU
#define ETH_MIN_MTU 68
#endif /* ETH_MIN_MTU */

/* If kernel is older than 4.10 but distro is RHEL >= 7.5 || SLES > 12SP4,
 * it does have support for NAPI_STATE
 */
#if ((RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5))) ||\
     (SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,4,0))))
#define HAVE_NAPI_STATE_IN_BUSY_POLL
#endif /* RHEL >= 7.5 || SLES >=12.4 */
#else /* >= 4.10 */
#define HAVE_TC_FLOWER_ENC
#define HAVE_NETDEVICE_MIN_MAX_MTU
#define HAVE_SWIOTLB_SKIP_CPU_SYNC
#define HAVE_NETDEV_TC_RESETS_XPS
#define HAVE_XPS_QOS_SUPPORT
#define HAVE_DEV_WALK_API
#define HAVE_ETHTOOL_NEW_2500MB_BITS
#define HAVE_ETHTOOL_5G_BITS
/* kernel 4.10 onwards, as part of busy_poll rewrite, new state were added
 * which is part of NAPI:state. If NAPI:state=NAPI_STATE_IN_BUSY_POLL,
 * it means napi_poll is invoked in busy_poll context
 */
#define HAVE_NAPI_STATE_IN_BUSY_POLL
#define HAVE_TCF_MIRRED_EGRESS_REDIRECT
#define HAVE_PTP_CLOCK_INFO_ADJFINE
#endif /* 4.10.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,11,0))
#ifdef CONFIG_NET_RX_BUSY_POLL
#define HAVE_NDO_BUSY_POLL
#endif /* CONFIG_NET_RX_BUSY_POLL */
#if ((SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,3,0))) || \
     (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5))))
#define HAVE_VOID_NDO_GET_STATS64
#endif /* (SLES >= 12.3.0) && (RHEL >= 7.5) */

static inline void _kc_dev_kfree_skb_irq(struct sk_buff *skb)
{
	if (!skb)
		return;
	dev_kfree_skb_irq(skb);
}

#undef dev_kfree_skb_irq
#define dev_kfree_skb_irq _kc_dev_kfree_skb_irq

static inline void _kc_dev_consume_skb_irq(struct sk_buff *skb)
{
	if (!skb)
		return;
	dev_consume_skb_irq(skb);
}

#undef dev_consume_skb_irq
#define dev_consume_skb_irq _kc_dev_consume_skb_irq

static inline void _kc_dev_kfree_skb_any(struct sk_buff *skb)
{
	if (!skb)
		return;
	dev_kfree_skb_any(skb);
}

#undef dev_kfree_skb_any
#define dev_kfree_skb_any _kc_dev_kfree_skb_any

static inline void _kc_dev_consume_skb_any(struct sk_buff *skb)
{
	if (!skb)
		return;
	dev_consume_skb_any(skb);
}

#undef dev_consume_skb_any
#define dev_consume_skb_any _kc_dev_consume_skb_any

#else /* > 4.11 */
#define HAVE_VOID_NDO_GET_STATS64
#define HAVE_VM_OPS_FAULT_NO_VMA
#endif /* 4.11.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,12,0))
#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,7) && \
     RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(8,0))
/* The RHEL 7.7+ NL_SET_ERR_MSG_MOD triggers unused parameter warnings */
#undef NL_SET_ERR_MSG_MOD
#endif
/* If kernel is older than 4.12 but distro is RHEL >= 7.5 || SLES > 12SP4,
 * it does have support for MIN_NAPI_ID
 */
#if ((RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5))) || \
     (SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,4,0))))
#define HAVE_MIN_NAPI_ID
#endif /* RHEL >= 7.5 || SLES >= 12.4 */
#ifndef NL_SET_ERR_MSG_MOD
#define NL_SET_ERR_MSG_MOD(extack, msg)						\
	do {									\
		uninitialized_var(extack);					\
		pr_err(KBUILD_MODNAME ": " msg);				\
	} while (0)
#endif /* !NL_SET_ERR_MSG_MOD */
#else /* >= 4.12 */
#define HAVE_NAPI_BUSY_LOOP
#define HAVE_MIN_NAPI_ID
#endif /* 4.12 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,13,0))
#if ((SLE_VERSION_CODE && (SLE_VERSION_CODE > SLE_VERSION(12,3,0))) || \
     (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5)))
#define HAVE_TCF_EXTS_HAS_ACTION
#endif
#define  PCI_EXP_LNKCAP_SLS_8_0GB 0x00000003 /* LNKCAP2 SLS Vector bit 2 */
#if (SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,4,0)))
#define HAVE_PCI_ERROR_HANDLER_RESET_PREPARE
#endif /* SLES >= 12sp4 */
#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5)) && \
     !(SLE_VERSION_CODE >= SLE_VERSION(12,4,0)))
#define UUID_SIZE 16
typedef struct {
	__u8 b[UUID_SIZE];
} uuid_t;
#define UUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)		\
((uuid_t)								\
{{ ((a) >> 24) & 0xff, ((a) >> 16) & 0xff, ((a) >> 8) & 0xff, (a) & 0xff, \
   ((b) >> 8) & 0xff, (b) & 0xff,					\
   ((c) >> 8) & 0xff, (c) & 0xff,					\
   (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})

static inline bool uuid_equal(const uuid_t *u1, const uuid_t *u2)
{
	return memcmp(u1, u2, sizeof(uuid_t)) == 0;
}
#else
#define HAVE_METADATA_PORT_INFO
#endif /* !(RHEL >= 7.5) && !(SLES >= 12.4) */
#else /* > 4.13 */
#define HAVE_METADATA_PORT_INFO
#define HAVE_HWTSTAMP_FILTER_NTP_ALL
#define HAVE_NDO_SETUP_TC_CHAIN_INDEX
#define HAVE_PCI_ERROR_HANDLER_RESET_PREPARE
#define HAVE_PTP_CLOCK_DO_AUX_WORK
#endif /* 4.13.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0))
#ifdef ETHTOOL_GLINKSETTINGS
#ifndef ethtool_link_ksettings_del_link_mode
#define ethtool_link_ksettings_del_link_mode(ptr, name, mode)		\
	__clear_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
#endif
#endif /* ETHTOOL_GLINKSETTINGS */
#if (SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,4,0)))
#define HAVE_NDO_SETUP_TC_REMOVE_TC_TO_NETDEV
#endif

#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5)))
#define HAVE_NDO_SETUP_TC_REMOVE_TC_TO_NETDEV
#define HAVE_RHEL7_NETDEV_OPS_EXT_NDO_SETUP_TC
#endif

#define TIMER_DATA_TYPE		unsigned long
#define TIMER_FUNC_TYPE		void (*)(TIMER_DATA_TYPE)

#define timer_setup(timer, callback, flags)				\
	__setup_timer((timer), (TIMER_FUNC_TYPE)(callback),		\
		      (TIMER_DATA_TYPE)(timer), (flags))

#define from_timer(var, callback_timer, timer_fieldname) \
	container_of(callback_timer, typeof(*var), timer_fieldname)

#ifndef xdp_do_flush_map
#define xdp_do_flush_map() do {} while (0)
#endif
struct _kc_xdp_buff {
	void *data;
	void *data_end;
	void *data_hard_start;
};
#define xdp_buff _kc_xdp_buff
struct _kc_bpf_prog {
};
#define bpf_prog _kc_bpf_prog
#ifndef DIV_ROUND_DOWN_ULL
#define DIV_ROUND_DOWN_ULL(ll, d) \
	({ unsigned long long _tmp = (ll); do_div(_tmp, d); _tmp; })
#endif /* DIV_ROUND_DOWN_ULL */
#else /* > 4.14 */
#define HAVE_XDP_SUPPORT
#define HAVE_NDO_SETUP_TC_REMOVE_TC_TO_NETDEV
#define HAVE_TCF_EXTS_HAS_ACTION
#endif /* 4.14.0 */

/*****************************************************************************/
#ifndef ETHTOOL_GLINKSETTINGS

#define __ETHTOOL_LINK_MODE_MASK_NBITS 32
#define ETHTOOL_LINK_MASK_SIZE BITS_TO_LONGS(__ETHTOOL_LINK_MODE_MASK_NBITS)

/**
 * struct ethtool_link_ksettings
 * @link_modes: supported and advertising, single item arrays
 * @link_modes.supported: bitmask of supported link speeds
 * @link_modes.advertising: bitmask of currently advertised speeds
 * @base: base link details
 * @base.speed: current link speed
 * @base.port: current port type
 * @base.duplex: current duplex mode
 * @base.autoneg: current autonegotiation settings
 *
 * This struct and the following macros provide a way to support the old
 * ethtool get/set_settings API on older kernels, but in the style of the new
 * GLINKSETTINGS API.  In this way, the same code can be used to support both
 * APIs as seemlessly as possible.
 *
 * It should be noted the old API only has support up to the first 32 bits.
 */
struct ethtool_link_ksettings {
	struct {
		u32 speed;
		u8 port;
		u8 duplex;
		u8 autoneg;
	} base;
	struct {
		unsigned long supported[ETHTOOL_LINK_MASK_SIZE];
		unsigned long advertising[ETHTOOL_LINK_MASK_SIZE];
	} link_modes;
};

#define ETHTOOL_LINK_NAME_advertising(mode) ADVERTISED_ ## mode
#define ETHTOOL_LINK_NAME_supported(mode) SUPPORTED_ ## mode
#define ETHTOOL_LINK_NAME(name) ETHTOOL_LINK_NAME_ ## name
#define ETHTOOL_LINK_CONVERT(name, mode) ETHTOOL_LINK_NAME(name)(mode)

/**
 * ethtool_link_ksettings_zero_link_mode
 * @ptr: ptr to ksettings struct
 * @name: supported or advertising
 */
#define ethtool_link_ksettings_zero_link_mode(ptr, name)\
	(*((ptr)->link_modes.name) = 0x0)

/**
 * ethtool_link_ksettings_add_link_mode
 * @ptr: ptr to ksettings struct
 * @name: supported or advertising
 * @mode: link mode to add
 */
#define ethtool_link_ksettings_add_link_mode(ptr, name, mode)\
	(*((ptr)->link_modes.name) |= (typeof(*((ptr)->link_modes.name)))ETHTOOL_LINK_CONVERT(name, mode))

/**
 * ethtool_link_ksettings_del_link_mode
 * @ptr: ptr to ksettings struct
 * @name: supported or advertising
 * @mode: link mode to delete
 */
#define ethtool_link_ksettings_del_link_mode(ptr, name, mode)\
	(*((ptr)->link_modes.name) &= ~(typeof(*((ptr)->link_modes.name)))ETHTOOL_LINK_CONVERT(name, mode))

/**
 * ethtool_link_ksettings_test_link_mode
 * @ptr: ptr to ksettings struct
 * @name: supported or advertising
 * @mode: link mode to add
 */
#define ethtool_link_ksettings_test_link_mode(ptr, name, mode)\
	(!!(*((ptr)->link_modes.name) & ETHTOOL_LINK_CONVERT(name, mode)))

/**
 * _kc_ethtool_ksettings_to_cmd - Convert ethtool_link_ksettings to ethtool_cmd
 * @ks: ethtool_link_ksettings struct
 * @cmd: ethtool_cmd struct
 *
 * Convert an ethtool_link_ksettings structure into the older ethtool_cmd
 * structure. We provide this in kcompat.h so that drivers can easily
 * implement the older .{get|set}_settings as wrappers around the new api.
 * Hence, we keep it prefixed with _kc_ to make it clear this isn't actually
 * a real function in the kernel.
 */
static inline void
_kc_ethtool_ksettings_to_cmd(struct ethtool_link_ksettings *ks,
			     struct ethtool_cmd *cmd)
{
	cmd->supported = (u32)ks->link_modes.supported[0];
	cmd->advertising = (u32)ks->link_modes.advertising[0];
	ethtool_cmd_speed_set(cmd, ks->base.speed);
	cmd->duplex = ks->base.duplex;
	cmd->autoneg = ks->base.autoneg;
	cmd->port = ks->base.port;
}

#endif /* !ETHTOOL_GLINKSETTINGS */

/*****************************************************************************/
#if ((LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)) || \
     (SLE_VERSION_CODE && (SLE_VERSION_CODE <= SLE_VERSION(12,3,0))) || \
     (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE <= RHEL_RELEASE_VERSION(7,5))))
#define phy_speed_to_str _kc_phy_speed_to_str
const char *_kc_phy_speed_to_str(int speed);
#else /* (LINUX >= 4.14.0) || (SLES > 12.3.0) || (RHEL > 7.5) */
#include <linux/phy.h>
#endif /* (LINUX < 4.14.0) || (SLES <= 12.3.0) || (RHEL <= 7.5) */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,15,0))
#if ((RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,6))) || \
     (SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(15,1,0))))
#define HAVE_TC_CB_AND_SETUP_QDISC_MQPRIO
#define HAVE_TCF_BLOCK
#else /* RHEL >= 7.6 || SLES >= 15.1 */
#endif /* !(RHEL >= 7.6) && !(SLES >= 15.1) */
void _kc_ethtool_intersect_link_masks(struct ethtool_link_ksettings *dst,
				      struct ethtool_link_ksettings *src);
#define ethtool_intersect_link_masks _kc_ethtool_intersect_link_masks
#else /* >= 4.15 */
#define HAVE_NDO_BPF
#define HAVE_XDP_BUFF_DATA_META
#define HAVE_TC_CB_AND_SETUP_QDISC_MQPRIO
#define HAVE_TCF_BLOCK
#endif /* 4.15.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,16,0))
#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,7)) && \
     !(SLE_VERSION_CODE >= SLE_VERSION(12,4,0) && \
       SLE_VERSION_CODE < SLE_VERSION(15,0,0)) && \
     !(SLE_VERSION_CODE >= SLE_VERSION(15,1,0)))
/* The return value of the strscpy() and strlcpy() functions is different.
 * This could be potentially hazard for the future.
 * To avoid this the void result is forced.
 * So it is not possible use this function with the return value.
 * Return value is required in kernel 4.3 through 4.15
 */
#define strscpy(...) (void)(strlcpy(__VA_ARGS__))
#endif /* !RHEL >= 7.7 && !SLES12sp4+ && !SLES15sp1+ */

#define pci_printk(level, pdev, fmt, arg...) \
	dev_printk(level, &(pdev)->dev, fmt, ##arg)
#define pci_emerg(pdev, fmt, arg...)	dev_emerg(&(pdev)->dev, fmt, ##arg)
#define pci_alert(pdev, fmt, arg...)	dev_alert(&(pdev)->dev, fmt, ##arg)
#define pci_crit(pdev, fmt, arg...)	dev_crit(&(pdev)->dev, fmt, ##arg)
#define pci_err(pdev, fmt, arg...)	dev_err(&(pdev)->dev, fmt, ##arg)
#define pci_warn(pdev, fmt, arg...)	dev_warn(&(pdev)->dev, fmt, ##arg)
#define pci_notice(pdev, fmt, arg...)	dev_notice(&(pdev)->dev, fmt, ##arg)
#define pci_info(pdev, fmt, arg...)	dev_info(&(pdev)->dev, fmt, ##arg)
#define pci_dbg(pdev, fmt, arg...)	dev_dbg(&(pdev)->dev, fmt, ##arg)

#ifndef array_index_nospec
static inline unsigned long _kc_array_index_mask_nospec(unsigned long index,
							unsigned long size)
{
	/*
	 * Always calculate and emit the mask even if the compiler
	 * thinks the mask is not needed. The compiler does not take
	 * into account the value of @index under speculation.
	 */
	OPTIMIZER_HIDE_VAR(index);
	return ~(long)(index | (size - 1UL - index)) >> (BITS_PER_LONG - 1);
}

#define array_index_nospec(index, size)					\
({									\
	typeof(index) _i = (index);					\
	typeof(size) _s = (size);					\
	unsigned long _mask = _kc_array_index_mask_nospec(_i, _s);	\
									\
	BUILD_BUG_ON(sizeof(_i) > sizeof(long));			\
	BUILD_BUG_ON(sizeof(_s) > sizeof(long));			\
									\
	(typeof(_i)) (_i & _mask);					\
})
#endif /* array_index_nospec */
#ifndef sizeof_field
#define sizeof_field(TYPE, MEMBER) (sizeof((((TYPE *)0)->MEMBER)))
#endif /* sizeof_field */
#if !(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,0)) && \
     !(SLE_VERSION_CODE >= SLE_VERSION(12,5,0) && \
       SLE_VERSION_CODE < SLE_VERSION(15,0,0) || \
       SLE_VERSION_CODE >= SLE_VERSION(15,1,0))
/*
 * Copy bitmap and clear tail bits in last word.
 */
static inline void
bitmap_copy_clear_tail(unsigned long *dst, const unsigned long *src, unsigned int nbits)
{
	bitmap_copy(dst, src, nbits);
	if (nbits % BITS_PER_LONG)
		dst[nbits / BITS_PER_LONG] &= BITMAP_LAST_WORD_MASK(nbits);
}

/*
 * On 32-bit systems bitmaps are represented as u32 arrays internally, and
 * therefore conversion is not needed when copying data from/to arrays of u32.
 */
#if BITS_PER_LONG == 64
void bitmap_from_arr32(unsigned long *bitmap, const u32 *buf, unsigned int nbits);
#else
#define bitmap_from_arr32(bitmap, buf, nbits)			\
	bitmap_copy_clear_tail((unsigned long *) (bitmap),	\
			       (const unsigned long *) (buf), (nbits))
#endif /* BITS_PER_LONG == 64 */
#endif /* !(RHEL >= 8.0) && !(SLES >= 12.5 && SLES < 15.0 || SLES >= 15.1) */
#else /* >= 4.16 */
#include <linux/nospec.h>
#define HAVE_XDP_BUFF_RXQ
#define HAVE_TC_FLOWER_OFFLOAD_COMMON_EXTACK
#define HAVE_TCF_MIRRED_DEV
#define HAVE_VF_STATS_DROPPED
#endif /* 4.16.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,17,0))
#include <linux/pci_regs.h>
#include <linux/pci.h>
#define PCIE_SPEED_16_0GT 0x17
#define PCI_EXP_LNKCAP_SLS_16_0GB 0x00000004 /* LNKCAP2 SLS Vector bit 3 */
#define PCI_EXP_LNKSTA_CLS_16_0GB 0x0004 /* Current Link Speed 16.0GT/s */
#define PCI_EXP_LNKCAP2_SLS_16_0GB 0x00000010 /* Supported Speed 16GT/s */
void _kc_pcie_print_link_status(struct pci_dev *dev);
#define pcie_print_link_status _kc_pcie_print_link_status
#else /* >= 4.17.0 */
#define HAVE_XDP_BUFF_IN_XDP_H
#endif /* 4.17.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,18,0))
#include "kcompat_overflow.h"

#if (SLE_VERSION_CODE < SLE_VERSION(15,1,0))
#define firmware_request_nowarn	request_firmware_direct
#endif /* SLES < 15.1 */

#else
#include <linux/overflow.h>
#include <net/xdp_sock.h>
#define HAVE_XDP_FRAME_STRUCT
#define HAVE_XDP_SOCK
#define HAVE_NDO_XDP_XMIT_BULK_AND_FLAGS
#define NO_NDO_XDP_FLUSH
#define HAVE_AF_XDP_SUPPORT
#endif /* 4.18.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,19,0))
#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,0)) && \
    (RHEL_RELEASE_CODE <= RHEL_RELEASE_VERSION(8,2)))
#define HAVE_DEVLINK_REGIONS
#endif /* RHEL >= 8.0 && RHEL <= 8.2 */
#define bitmap_alloc(nbits, flags) \
	kmalloc_array(BITS_TO_LONGS(nbits), sizeof(unsigned long), flags)
#define bitmap_zalloc(nbits, flags) bitmap_alloc(nbits, ((flags) | __GFP_ZERO))
#define bitmap_free(bitmap) kfree(bitmap)
#ifdef ETHTOOL_GLINKSETTINGS
#define ethtool_ks_clear(ptr, name) \
	ethtool_link_ksettings_zero_link_mode(ptr, name)
#define ethtool_ks_add_mode(ptr, name, mode) \
	ethtool_link_ksettings_add_link_mode(ptr, name, mode)
#define ethtool_ks_del_mode(ptr, name, mode) \
	ethtool_link_ksettings_del_link_mode(ptr, name, mode)
#define ethtool_ks_test(ptr, name, mode) \
	ethtool_link_ksettings_test_link_mode(ptr, name, mode)
#endif /* ETHTOOL_GLINKSETTINGS */
#define HAVE_NETPOLL_CONTROLLER
#define REQUIRE_PCI_CLEANUP_AER_ERROR_STATUS
#if (SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(15,1,0)))
#define HAVE_TCF_MIRRED_DEV
#define HAVE_NDO_SELECT_QUEUE_SB_DEV
#define HAVE_TCF_BLOCK_CB_REGISTER_EXTACK
#endif

static inline void __kc_metadata_dst_free(void *md_dst)
{
	kfree(md_dst);
}

#define metadata_dst_free(md_dst) __kc_metadata_dst_free(md_dst)
#else /* >= 4.19.0 */
#define HAVE_TCF_BLOCK_CB_REGISTER_EXTACK
#define NO_NETDEV_BPF_PROG_ATTACHED
#define HAVE_NDO_SELECT_QUEUE_SB_DEV
#define HAVE_NETDEV_SB_DEV
#define HAVE_TCF_VLAN_TPID
#define HAVE_RHASHTABLE_TYPES
#define HAVE_DEVLINK_REGIONS
#define HAVE_DEVLINK_PARAMS
#endif /* 4.19.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,20,0))
#define HAVE_XDP_UMEM_PROPS
#ifdef HAVE_AF_XDP_SUPPORT
#ifndef napi_if_scheduled_mark_missed
static inline bool __kc_napi_if_scheduled_mark_missed(struct napi_struct *n)
{
	unsigned long val, new;

	do {
		val = READ_ONCE(n->state);
		if (val & NAPIF_STATE_DISABLE)
			return true;

		if (!(val & NAPIF_STATE_SCHED))
			return false;

		new = val | NAPIF_STATE_MISSED;
	} while (cmpxchg(&n->state, val, new) != val);

	return true;
}

#define napi_if_scheduled_mark_missed __kc_napi_if_scheduled_mark_missed
#endif /* !napi_if_scheduled_mark_missed */
#endif /* HAVE_AF_XDP_SUPPORT */
#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,0)))
#define HAVE_DEVLINK_ESWITCH_OPS_EXTACK
#endif /* RHEL >= 8.0 */
#if ((SLE_VERSION_CODE >= SLE_VERSION(12,5,0) && \
      SLE_VERSION_CODE < SLE_VERSION(15,0,0)) || \
     (SLE_VERSION_CODE >= SLE_VERSION(15,1,0)))
#define HAVE_DEVLINK_ESWITCH_OPS_EXTACK
#endif /* SLE == 12sp5 || SLE >= 15sp1 */
#else /* >= 4.20.0 */
#define HAVE_DEVLINK_ESWITCH_OPS_EXTACK
#define HAVE_AF_XDP_ZC_SUPPORT
#define HAVE_VXLAN_TYPE
#define HAVE_ETF_SUPPORT /* Earliest TxTime First */
#endif /* 4.20.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,0,0))
#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(8,0)))
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,12,0))
#define NETLINK_MAX_COOKIE_LEN	20
struct netlink_ext_ack {
	const char *_msg;
	const struct nlattr *bad_attr;
	u8 cookie[NETLINK_MAX_COOKIE_LEN];
	u8 cookie_len;
};

#endif /* < 4.12 */
static inline int _kc_dev_open(struct net_device *netdev,
			       struct netlink_ext_ack __always_unused *extack)
{
	return dev_open(netdev);
}

#define dev_open _kc_dev_open

static inline int
_kc_dev_change_flags(struct net_device *netdev, unsigned int flags,
		     struct netlink_ext_ack __always_unused *extack)
{
	return dev_change_flags(netdev, flags);
}

#define dev_change_flags _kc_dev_change_flags
#endif /* !(RHEL_RELEASE_CODE && RHEL > RHEL(8,0)) */
#if (RHEL_RELEASE_CODE && \
     (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,7) && \
      RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(8,0)) || \
     (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,1)))
#define HAVE_PTP_SYS_OFFSET_EXTENDED_IOCTL
#define HAVE_PTP_CLOCK_INFO_GETTIMEX64
#else /* RHEL >= 7.7 && RHEL < 8.0 || RHEL >= 8.1 */
struct ptp_system_timestamp {
	struct timespec64 pre_ts;
	struct timespec64 post_ts;
};

static inline void
ptp_read_system_prets(struct ptp_system_timestamp __always_unused *sts)
{
	;
}

static inline void
ptp_read_system_postts(struct ptp_system_timestamp __always_unused *sts)
{
	;
}
#endif /* !(RHEL >= 7.7 && RHEL != 8.0) */
#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,1)))
#define HAVE_NDO_BRIDGE_SETLINK_EXTACK
#endif /* RHEL 8.1 */
#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,2))
#define HAVE_TC_INDIR_BLOCK
#endif /* RHEL 8.2 */
#define INDIRECT_CALLABLE_DECLARE(x) x
#else /* >= 5.0.0 */
#define HAVE_PTP_SYS_OFFSET_EXTENDED_IOCTL
#define HAVE_PTP_CLOCK_INFO_GETTIMEX64
#define HAVE_NDO_BRIDGE_SETLINK_EXTACK
#define HAVE_DMA_ALLOC_COHERENT_ZEROES_MEM
#define HAVE_GENEVE_TYPE
#define HAVE_TC_INDIR_BLOCK
#define HAVE_INDIRECT_CALL_WRAPPER_HEADER
#endif /* 5.0.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,1,0))
#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,1)))
#define HAVE_TC_FLOW_RULE_INFRASTRUCTURE
#define HAVE_NDO_FDB_ADD_EXTACK
#define HAVE_DEVLINK_INFO_GET
#define HAVE_DEVLINK_FLASH_UPDATE
#else /* RHEL < 8.1 */
#ifdef HAVE_TC_SETUP_CLSFLOWER
#include <net/pkt_cls.h>

struct flow_match {
	struct flow_dissector	*dissector;
	void			*mask;
	void			*key;
};

struct flow_match_basic {
	struct flow_dissector_key_basic *key, *mask;
};

struct flow_match_control {
	struct flow_dissector_key_control *key, *mask;
};

struct flow_match_eth_addrs {
	struct flow_dissector_key_eth_addrs *key, *mask;
};

#ifdef HAVE_TC_FLOWER_ENC
struct flow_match_enc_keyid {
	struct flow_dissector_key_keyid *key, *mask;
};
#endif

#ifndef HAVE_TC_FLOWER_VLAN_IN_TAGS
struct flow_match_vlan {
	struct flow_dissector_key_vlan *key, *mask;
};
#endif

struct flow_match_ipv4_addrs {
	struct flow_dissector_key_ipv4_addrs *key, *mask;
};

struct flow_match_ipv6_addrs {
	struct flow_dissector_key_ipv6_addrs *key, *mask;
};

struct flow_match_ports {
	struct flow_dissector_key_ports *key, *mask;
};

struct flow_rule {
	struct flow_match	match;
};

void flow_rule_match_basic(const struct flow_rule *rule,
			   struct flow_match_basic *out);
void flow_rule_match_control(const struct flow_rule *rule,
			     struct flow_match_control *out);
void flow_rule_match_eth_addrs(const struct flow_rule *rule,
			       struct flow_match_eth_addrs *out);
#ifndef HAVE_TC_FLOWER_VLAN_IN_TAGS
void flow_rule_match_vlan(const struct flow_rule *rule,
			  struct flow_match_vlan *out);
#endif
void flow_rule_match_ipv4_addrs(const struct flow_rule *rule,
				struct flow_match_ipv4_addrs *out);
void flow_rule_match_ipv6_addrs(const struct flow_rule *rule,
				struct flow_match_ipv6_addrs *out);
void flow_rule_match_ports(const struct flow_rule *rule,
			   struct flow_match_ports *out);
#ifdef HAVE_TC_FLOWER_ENC
void flow_rule_match_enc_ports(const struct flow_rule *rule,
			       struct flow_match_ports *out);
void flow_rule_match_enc_control(const struct flow_rule *rule,
				 struct flow_match_control *out);
void flow_rule_match_enc_ipv4_addrs(const struct flow_rule *rule,
				    struct flow_match_ipv4_addrs *out);
void flow_rule_match_enc_ipv6_addrs(const struct flow_rule *rule,
				    struct flow_match_ipv6_addrs *out);
void flow_rule_match_enc_keyid(const struct flow_rule *rule,
			       struct flow_match_enc_keyid *out);
#endif

static inline struct flow_rule *
tc_cls_flower_offload_flow_rule(struct tc_cls_flower_offload *tc_flow_cmd)
{
	return (struct flow_rule *)&tc_flow_cmd->dissector;
}

static inline bool flow_rule_match_key(const struct flow_rule *rule,
				       enum flow_dissector_key_id key)
{
	return dissector_uses_key(rule->match.dissector, key);
}
#endif /* HAVE_TC_SETUP_CLSFLOWER */

#endif /* RHEL < 8.1 */

#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,1)))
#define devlink_params_publish(devlink) do { } while (0)
#define devlink_params_unpublish(devlink) do { } while (0)
#endif

#else /* >= 5.1.0 */
#define HAVE_NDO_FDB_ADD_EXTACK
#define NO_XDP_QUERY_XSK_UMEM
#define HAVE_AF_XDP_NETDEV_UMEM
#define HAVE_TC_FLOW_RULE_INFRASTRUCTURE
#define HAVE_TC_FLOWER_ENC_IP
#define HAVE_DEVLINK_INFO_GET
#define HAVE_DEVLINK_FLASH_UPDATE
#define HAVE_DEVLINK_PORT_PARAMS
#endif /* 5.1.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,2,0))
#if (defined HAVE_SKB_XMIT_MORE) && \
(!(RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,2))))
#define netdev_xmit_more()	(skb->xmit_more)
#else
#define netdev_xmit_more()	(0)
#endif

#if (!(RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,2))))
#ifndef eth_get_headlen
static inline u32
__kc_eth_get_headlen(const struct net_device __always_unused *dev, void *data,
		     unsigned int len)
{
	return eth_get_headlen(data, len);
}

#define eth_get_headlen(dev, data, len) __kc_eth_get_headlen(dev, data, len)
#endif /* !eth_get_headlen */
#endif /* !RHEL >= 8.2 */

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

#if (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(8,1))
#define HAVE_NDO_GET_DEVLINK_PORT
#endif /* RHEL > 8.1 */

#else /* >= 5.2.0 */
#define HAVE_NDO_SELECT_QUEUE_FALLBACK_REMOVED
#define SPIN_UNLOCK_IMPLIES_MMIOWB
#define HAVE_NDO_GET_DEVLINK_PORT
#endif /* 5.2.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,3,0))
#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,2)))
#define flow_block_offload tc_block_offload
#define flow_block_command tc_block_command
#define flow_cls_offload tc_cls_flower_offload
#define flow_block_binder_type tcf_block_binder_type
#define flow_cls_common_offload tc_cls_common_offload
#define flow_cls_offload_flow_rule tc_cls_flower_offload_flow_rule
#define FLOW_CLS_REPLACE TC_CLSFLOWER_REPLACE
#define FLOW_CLS_DESTROY TC_CLSFLOWER_DESTROY
#define FLOW_CLS_STATS TC_CLSFLOWER_STATS
#define FLOW_CLS_TMPLT_CREATE TC_CLSFLOWER_TMPLT_CREATE
#define FLOW_CLS_TMPLT_DESTROY TC_CLSFLOWER_TMPLT_DESTROY
#define FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS \
		TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS
#define FLOW_BLOCK_BIND TC_BLOCK_BIND
#define FLOW_BLOCK_UNBIND TC_BLOCK_UNBIND

#ifdef HAVE_TC_CB_AND_SETUP_QDISC_MQPRIO
#include <net/pkt_cls.h>

int _kc_flow_block_cb_setup_simple(struct flow_block_offload *f,
				   struct list_head *driver_list,
				   tc_setup_cb_t *cb,
				   void *cb_ident, void *cb_priv,
				   bool ingress_only);

#define flow_block_cb_setup_simple(f, driver_list, cb, cb_ident, cb_priv, \
				   ingress_only) \
	_kc_flow_block_cb_setup_simple(f, driver_list, cb, cb_ident, cb_priv, \
				       ingress_only)
#endif /* HAVE_TC_CB_AND_SETUP_QDISC_MQPRIO */
#else /* RHEL >= 8.2 */
#define HAVE_FLOW_BLOCK_API
#define HAVE_DEVLINK_PORT_ATTR_PCI_VF
#endif /* RHEL >= 8.2 */

#ifndef ETH_P_LLDP
#define ETH_P_LLDP	0x88CC
#endif /* !ETH_P_LLDP */

#else /* >= 5.3.0 */
#define XSK_UMEM_RETURNS_XDP_DESC
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,8,0))
#if !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(15,3,0))
#define HAVE_XSK_UMEM_HAS_ADDRS
#endif /* SLE < 15.3 */
#endif /* < 5.8.0*/
#define HAVE_FLOW_BLOCK_API
#define HAVE_DEVLINK_PORT_ATTR_PCI_VF
#if IS_ENABLED(CONFIG_DIMLIB)
#define HAVE_CONFIG_DIMLIB
#endif
#endif /* 5.3.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,4,0))
#if (SLE_VERSION_CODE >= SLE_VERSION(15,2,0))
#define HAVE_NDO_XSK_WAKEUP
#endif /* SLES15sp2 */
#else /* >= 5.4.0 */
#define HAVE_NDO_XSK_WAKEUP
#endif /* 5.4.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,5,0))
static inline unsigned long _kc_bitmap_get_value8(const unsigned long *map,
						  unsigned long start)
{
	const size_t index = BIT_WORD(start);
	const unsigned long offset = start % BITS_PER_LONG;

	return (map[index] >> offset) & 0xFF;
}
#define bitmap_get_value8 _kc_bitmap_get_value8

static inline void _kc_bitmap_set_value8(unsigned long *map,
					 unsigned long value,
					 unsigned long start)
{
	const size_t index = BIT_WORD(start);
	const unsigned long offset = start % BITS_PER_LONG;

	map[index] &= ~(0xFFUL << offset);
	map[index] |= value << offset;
}
#define bitmap_set_value8 _kc_bitmap_set_value8

#endif /* 5.5.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,6,0))
#ifdef HAVE_AF_XDP_SUPPORT
#define xsk_umem_release_addr		xsk_umem_discard_addr
#define xsk_umem_release_addr_rq	xsk_umem_discard_addr_rq
#endif /* HAVE_AF_XDP_SUPPORT */
#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,3)) || \
     (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(15,3,0)))
#define HAVE_TX_TIMEOUT_TXQUEUE
#endif
#else /* >= 5.6.0 */
#define HAVE_TX_TIMEOUT_TXQUEUE
#endif /* 5.6.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,7,0))
u64 _kc_pci_get_dsn(struct pci_dev *dev);
#define pci_get_dsn(dev) _kc_pci_get_dsn(dev)
#if !(SLE_VERSION_CODE > SLE_VERSION(15,2,0)) && \
    !((LINUX_VERSION_CODE == KERNEL_VERSION(5,3,18)) && \
      (SLE_LOCALVERSION_CODE >= KERNEL_VERSION(14,0,0))) && \
    !(RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,3)))
#define pci_aer_clear_nonfatal_status	pci_cleanup_aer_uncorrect_error_status
#endif

#define cpu_latency_qos_update_request pm_qos_update_request
#define cpu_latency_qos_add_request(arg1, arg2) pm_qos_add_request(arg1, PM_QOS_CPU_DMA_LATENCY, arg2)
#define cpu_latency_qos_remove_request pm_qos_remove_request

#ifndef DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID
#define DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID "fw.bundle_id"
#endif
#else /* >= 5.7.0 */
#define HAVE_DEVLINK_REGION_OPS_SNAPSHOT
#define HAVE_ETHTOOL_COALESCE_PARAMS_SUPPORT
#endif /* 5.7.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,8,0))
#if !(RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,4))) && \
    !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(15,3,0))
#define xdp_convert_buff_to_frame convert_to_xdp_frame
#endif /* (RHEL < 8.4) || (SLE < 15.3) */
#define flex_array_size(p, member, count) \
	array_size(count, sizeof(*(p)->member) + __must_be_array((p)->member))
#if (!(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(15,3,0)))
#ifdef HAVE_AF_XDP_ZC_SUPPORT
#ifndef xsk_umem_get_rx_frame_size
static inline u32 _xsk_umem_get_rx_frame_size(struct xdp_umem *umem)
{
	return umem->chunk_size_nohr - XDP_PACKET_HEADROOM;
}

#define xsk_umem_get_rx_frame_size _xsk_umem_get_rx_frame_size
#endif /* xsk_umem_get_rx_frame_size */
#endif /* HAVE_AF_XDP_ZC_SUPPORT */
#else /* SLE >= 15.3 */
#define HAVE_XDP_BUFF_FRAME_SZ
#define HAVE_MEM_TYPE_XSK_BUFF_POOL
#endif /* SLE >= 15.3 */
#else /* >= 5.8.0 */
#define HAVE_TC_FLOW_INDIR_DEV
#define HAVE_TC_FLOW_INDIR_BLOCK_CLEANUP
#define HAVE_XDP_BUFF_FRAME_SZ
#define HAVE_MEM_TYPE_XSK_BUFF_POOL
#endif /* 5.8.0 */
#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,3)))
#define HAVE_TC_FLOW_INDIR_DEV
#endif
#if (SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(15,3,0)))
#define HAVE_TC_FLOW_INDIR_DEV
#endif /* SLE_VERSION_CODE && SLE_VERSION_CODE >= SLES15SP3 */

/*****************************************************************************/
#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,4)))
#define HAVE_TC_FLOW_INDIR_BLOCK_CLEANUP
#endif /* (RHEL >= 8.4) */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,9,0))
#else /* >= 5.9.0 */
#define HAVE_FLOW_INDIR_BLOCK_QDISC
#define HAVE_UDP_TUNNEL_NIC_INFO
#endif /* 5.9.0 */
#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(8,3)))
#define HAVE_FLOW_INDIR_BLOCK_QDISC
#endif
#if (SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(15,3,0)))
#define HAVE_FLOW_INDIR_BLOCK_QDISC
#endif /* SLE_VERSION_CODE && SLE_VERSION_CODE >= SLES15SP3 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,10,0))
#if (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(15,3,0))
#define HAVE_DEVLINK_REGION_OPS_SNAPSHOT_OPS
#define HAVE_DEVLINK_FLASH_UPDATE_PARAMS
#else /* SLE >= 15.3 */
struct devlink_flash_update_params {
	const char *file_name;
	const char *component;
	u32 overwrite_mask;
};

#ifndef DEVLINK_FLASH_OVERWRITE_SETTINGS
#define DEVLINK_FLASH_OVERWRITE_SETTINGS BIT(0)
#endif

#ifndef DEVLINK_FLASH_OVERWRITE_IDENTIFIERS
#define DEVLINK_FLASH_OVERWRITE_IDENTIFIERS BIT(1)
#endif
#endif /* !(SLE >= 15.3) */

#if (!(SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(15,3,0))))
#define XDP_SETUP_XSK_POOL XDP_SETUP_XSK_UMEM
#define xsk_get_pool_from_qid xdp_get_umem_from_qid
#define xsk_pool_get_rx_frame_size xsk_umem_get_rx_frame_size
#define xsk_pool_set_rxq_info xsk_buff_set_rxq_info
#define xsk_pool_dma_unmap xsk_buff_dma_unmap
#define xsk_pool_dma_map xsk_buff_dma_map
#define xsk_tx_peek_desc xsk_umem_consume_tx
#define xsk_tx_release xsk_umem_consume_tx_done
#define xsk_tx_completed xsk_umem_complete_tx
#define xsk_uses_need_wakeup xsk_umem_uses_need_wakeup
#ifdef HAVE_MEM_TYPE_XSK_BUFF_POOL
#include <net/xdp_sock_drv.h>
static inline void
_kc_xsk_buff_dma_sync_for_cpu(struct xdp_buff *xdp,
			      void __always_unused *pool)
{
	xsk_buff_dma_sync_for_cpu(xdp);
}

#define xsk_buff_dma_sync_for_cpu(xdp, pool) \
	_kc_xsk_buff_dma_sync_for_cpu(xdp, pool)
#endif /* HAVE_MEM_TYPE_XSK_BUFF_POOL */
#else /* SLE >= 15.3 */
#define HAVE_NETDEV_BPF_XSK_POOL
#endif /* SLE >= 15.3 */
#else /* >= 5.10.0 */
#define HAVE_DEVLINK_REGION_OPS_SNAPSHOT_OPS
#define HAVE_DEVLINK_FLASH_UPDATE_PARAMS
#define HAVE_NETDEV_BPF_XSK_POOL
#endif /* 5.10.0 */

/*****************************************************************************/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,11,0))
#ifdef HAVE_XDP_BUFF_RXQ
#include <net/xdp.h>
static inline int
_kc_xdp_rxq_info_reg(struct xdp_rxq_info *xdp_rxq, struct net_device *dev,
		     u32 queue_index, unsigned int __always_unused napi_id)
{
	return xdp_rxq_info_reg(xdp_rxq, dev, queue_index);
}

#define xdp_rxq_info_reg(xdp_rxq, dev, queue_index, napi_id) \
	_kc_xdp_rxq_info_reg(xdp_rxq, dev, queue_index, napi_id)
#endif /* HAVE_XDP_BUFF_RXQ */
#ifdef HAVE_NAPI_BUSY_LOOP
#ifdef CONFIG_NET_RX_BUSY_POLL
#include <net/busy_poll.h>
static inline void
_kc_napi_busy_loop(unsigned int napi_id,
		   bool (*loop_end)(void *, unsigned long), void *loop_end_arg,
		   bool __always_unused prefer_busy_poll,
		   u16 __always_unused budget)
{
	napi_busy_loop(napi_id, loop_end, loop_end_arg);
}

#define napi_busy_loop(napi_id, loop_end, loop_end_arg, prefer_busy_poll, budget) \
	_kc_napi_busy_loop(napi_id, loop_end, loop_end_arg, prefer_busy_poll, budget)
#endif /* CONFIG_NET_RX_BUSY_POLL */
#endif /* HAVE_NAPI_BUSY_LOOP */
#define HAVE_DEVLINK_FLASH_UPDATE_BEGIN_END_NOTIFY
#else /* >= 5.11.0 */
#define HAVE_DEVLINK_FLASH_UPDATE_PARAMS_FW
#endif /* 5.11.0 */

/*
 * Load the implementations file which actually defines kcompat backports.
 * Legacy backports still exist in this file, but all new backports must be
 * implemented using kcompat_*defs.h and kcompat_impl.h
 */
#include "kcompat_impl.h"

#endif /* _KCOMPAT_H_ */