Release 4.7 include/linux/netdev_features.h

/*
 * Network device features.
 *
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */
#ifndef _LINUX_NETDEV_FEATURES_H

#define _LINUX_NETDEV_FEATURES_H

#include <linux/types.h>


typedef u64 netdev_features_t;

enum {
	
NETIF_F_SG_BIT,			/* Scatter/gather IO. */
	
NETIF_F_IP_CSUM_BIT,		/* Can checksum TCP/UDP over IPv4. */
	
__UNUSED_NETIF_F_1,
	
NETIF_F_HW_CSUM_BIT,		/* Can checksum all the packets. */
	
NETIF_F_IPV6_CSUM_BIT,		/* Can checksum TCP/UDP over IPV6 */
	
NETIF_F_HIGHDMA_BIT,		/* Can DMA to high memory. */
	
NETIF_F_FRAGLIST_BIT,		/* Scatter/gather IO. */
	
NETIF_F_HW_VLAN_CTAG_TX_BIT,	/* Transmit VLAN CTAG HW acceleration */
	
NETIF_F_HW_VLAN_CTAG_RX_BIT,	/* Receive VLAN CTAG HW acceleration */
	
NETIF_F_HW_VLAN_CTAG_FILTER_BIT,/* Receive filtering on VLAN CTAGs */
	
NETIF_F_VLAN_CHALLENGED_BIT,	/* Device cannot handle VLAN packets */
	
NETIF_F_GSO_BIT,		/* Enable software GSO. */
	
NETIF_F_LLTX_BIT,		/* LockLess TX - deprecated. Please */
					/* do not use LLTX in new drivers */
	
NETIF_F_NETNS_LOCAL_BIT,	/* Does not change network namespaces */
	
NETIF_F_GRO_BIT,		/* Generic receive offload */
	
NETIF_F_LRO_BIT,		/* large receive offload */

	
/**/NETIF_F_GSO_SHIFT,		/* keep the order of SKB_GSO_* bits */
	
NETIF_F_TSO_BIT			/* ... TCPv4 segmentation */
		= NETIF_F_GSO_SHIFT,
	
NETIF_F_UFO_BIT,		/* ... UDPv4 fragmentation */
	
NETIF_F_GSO_ROBUST_BIT,		/* ... ->SKB_GSO_DODGY */
	
NETIF_F_TSO_ECN_BIT,		/* ... TCP ECN support */
	
NETIF_F_TSO_MANGLEID_BIT,	/* ... IPV4 ID mangling allowed */
	
NETIF_F_TSO6_BIT,		/* ... TCPv6 segmentation */
	
NETIF_F_FSO_BIT,		/* ... FCoE segmentation */
	
NETIF_F_GSO_GRE_BIT,		/* ... GRE with TSO */
	
NETIF_F_GSO_GRE_CSUM_BIT,	/* ... GRE with csum with TSO */
	
NETIF_F_GSO_IPXIP4_BIT,		/* ... IP4 or IP6 over IP4 with TSO */
	
NETIF_F_GSO_IPXIP6_BIT,		/* ... IP4 or IP6 over IP6 with TSO */
	
NETIF_F_GSO_UDP_TUNNEL_BIT,	/* ... UDP TUNNEL with TSO */
	
NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT,/* ... UDP TUNNEL with TSO & CSUM */
	
NETIF_F_GSO_PARTIAL_BIT,	/* ... Only segment inner-most L4
                                         *     in hardware and all other
                                         *     headers in software.
                                         */
	
NETIF_F_GSO_TUNNEL_REMCSUM_BIT, /* ... TUNNEL with TSO & REMCSUM */
	
/**/NETIF_F_GSO_LAST =		/* last bit, see GSO_MASK */
		NETIF_F_GSO_TUNNEL_REMCSUM_BIT,

	
NETIF_F_FCOE_CRC_BIT,		/* FCoE CRC32 */
	
NETIF_F_SCTP_CRC_BIT,		/* SCTP checksum offload */
	
NETIF_F_FCOE_MTU_BIT,		/* Supports max FCoE MTU, 2158 bytes*/
	
NETIF_F_NTUPLE_BIT,		/* N-tuple filters supported */
	
NETIF_F_RXHASH_BIT,		/* Receive hashing offload */
	
NETIF_F_RXCSUM_BIT,		/* Receive checksumming offload */
	
NETIF_F_NOCACHE_COPY_BIT,	/* Use no-cache copyfromuser */
	
NETIF_F_LOOPBACK_BIT,		/* Enable loopback */
	
NETIF_F_RXFCS_BIT,		/* Append FCS to skb pkt data */
	
NETIF_F_RXALL_BIT,		/* Receive errored frames too */
	
NETIF_F_HW_VLAN_STAG_TX_BIT,	/* Transmit VLAN STAG HW acceleration */
	
NETIF_F_HW_VLAN_STAG_RX_BIT,	/* Receive VLAN STAG HW acceleration */
	
NETIF_F_HW_VLAN_STAG_FILTER_BIT,/* Receive filtering on VLAN STAGs */
	
NETIF_F_HW_L2FW_DOFFLOAD_BIT,	/* Allow L2 Forwarding in Hardware */
	
NETIF_F_BUSY_POLL_BIT,		/* Busy poll */

	
NETIF_F_HW_TC_BIT,		/* Offload TC infrastructure */

	/*
         * Add your fresh new feature above and remember to update
         * netdev_features_strings[] in net/core/ethtool.c and maybe
         * some feature mask #defines below. Please also describe it
         * in Documentation/networking/netdev-features.txt.
         */

	
/**/NETDEV_FEATURE_COUNT
};

/* copy'n'paste compression ;) */

#define __NETIF_F_BIT(bit)	((netdev_features_t)1 << (bit))

#define __NETIF_F(name)		__NETIF_F_BIT(NETIF_F_##name##_BIT)


#define NETIF_F_FCOE_CRC	__NETIF_F(FCOE_CRC)

#define NETIF_F_FCOE_MTU	__NETIF_F(FCOE_MTU)

#define NETIF_F_FRAGLIST	__NETIF_F(FRAGLIST)

#define NETIF_F_FSO		__NETIF_F(FSO)

#define NETIF_F_GRO		__NETIF_F(GRO)

#define NETIF_F_GSO		__NETIF_F(GSO)

#define NETIF_F_GSO_ROBUST	__NETIF_F(GSO_ROBUST)

#define NETIF_F_HIGHDMA		__NETIF_F(HIGHDMA)

#define NETIF_F_HW_CSUM		__NETIF_F(HW_CSUM)

#define NETIF_F_HW_VLAN_CTAG_FILTER __NETIF_F(HW_VLAN_CTAG_FILTER)

#define NETIF_F_HW_VLAN_CTAG_RX	__NETIF_F(HW_VLAN_CTAG_RX)

#define NETIF_F_HW_VLAN_CTAG_TX	__NETIF_F(HW_VLAN_CTAG_TX)

#define NETIF_F_IP_CSUM		__NETIF_F(IP_CSUM)

#define NETIF_F_IPV6_CSUM	__NETIF_F(IPV6_CSUM)

#define NETIF_F_LLTX		__NETIF_F(LLTX)

#define NETIF_F_LOOPBACK	__NETIF_F(LOOPBACK)

#define NETIF_F_LRO		__NETIF_F(LRO)

#define NETIF_F_NETNS_LOCAL	__NETIF_F(NETNS_LOCAL)

#define NETIF_F_NOCACHE_COPY	__NETIF_F(NOCACHE_COPY)

#define NETIF_F_NTUPLE		__NETIF_F(NTUPLE)

#define NETIF_F_RXCSUM		__NETIF_F(RXCSUM)

#define NETIF_F_RXHASH		__NETIF_F(RXHASH)

#define NETIF_F_SCTP_CRC	__NETIF_F(SCTP_CRC)

#define NETIF_F_SG		__NETIF_F(SG)

#define NETIF_F_TSO6		__NETIF_F(TSO6)

#define NETIF_F_TSO_ECN		__NETIF_F(TSO_ECN)

#define NETIF_F_TSO		__NETIF_F(TSO)

#define NETIF_F_UFO		__NETIF_F(UFO)

#define NETIF_F_VLAN_CHALLENGED	__NETIF_F(VLAN_CHALLENGED)

#define NETIF_F_RXFCS		__NETIF_F(RXFCS)

#define NETIF_F_RXALL		__NETIF_F(RXALL)

#define NETIF_F_GSO_GRE		__NETIF_F(GSO_GRE)

#define NETIF_F_GSO_GRE_CSUM	__NETIF_F(GSO_GRE_CSUM)

#define NETIF_F_GSO_IPXIP4	__NETIF_F(GSO_IPXIP4)

#define NETIF_F_GSO_IPXIP6	__NETIF_F(GSO_IPXIP6)

#define NETIF_F_GSO_UDP_TUNNEL	__NETIF_F(GSO_UDP_TUNNEL)

#define NETIF_F_GSO_UDP_TUNNEL_CSUM __NETIF_F(GSO_UDP_TUNNEL_CSUM)

#define NETIF_F_TSO_MANGLEID	__NETIF_F(TSO_MANGLEID)

#define NETIF_F_GSO_PARTIAL	 __NETIF_F(GSO_PARTIAL)

#define NETIF_F_GSO_TUNNEL_REMCSUM __NETIF_F(GSO_TUNNEL_REMCSUM)

#define NETIF_F_HW_VLAN_STAG_FILTER __NETIF_F(HW_VLAN_STAG_FILTER)

#define NETIF_F_HW_VLAN_STAG_RX	__NETIF_F(HW_VLAN_STAG_RX)

#define NETIF_F_HW_VLAN_STAG_TX	__NETIF_F(HW_VLAN_STAG_TX)

#define NETIF_F_HW_L2FW_DOFFLOAD	__NETIF_F(HW_L2FW_DOFFLOAD)

#define NETIF_F_BUSY_POLL	__NETIF_F(BUSY_POLL)

#define NETIF_F_HW_TC		__NETIF_F(HW_TC)


#define for_each_netdev_feature(mask_addr, bit)	\
	for_each_set_bit(bit, (unsigned long *)mask_addr, NETDEV_FEATURE_COUNT)

/* Features valid for ethtool to change */
/* = all defined minus driver/device-class-related */

#define NETIF_F_NEVER_CHANGE	(NETIF_F_VLAN_CHALLENGED | \
                                 NETIF_F_LLTX | NETIF_F_NETNS_LOCAL)

/* remember that ((t)1 << t_BITS) is undefined in C99 */

#define NETIF_F_ETHTOOL_BITS	((__NETIF_F_BIT(NETDEV_FEATURE_COUNT - 1) | \
                (__NETIF_F_BIT(NETDEV_FEATURE_COUNT - 1) - 1)) & \
                ~NETIF_F_NEVER_CHANGE)

/* Segmentation offload feature mask */

#define NETIF_F_GSO_MASK	(__NETIF_F_BIT(NETIF_F_GSO_LAST + 1) - \
                __NETIF_F_BIT(NETIF_F_GSO_SHIFT))

/* List of IP checksum features. Note that NETIF_F_ HW_CSUM should not be
 * set in features when NETIF_F_IP_CSUM or NETIF_F_IPV6_CSUM are set--
 * this would be contradictory
 */

#define NETIF_F_CSUM_MASK	(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
                                 NETIF_F_HW_CSUM)


#define NETIF_F_ALL_TSO 	(NETIF_F_TSO | NETIF_F_TSO6 | \
                                 NETIF_F_TSO_ECN | NETIF_F_TSO_MANGLEID)


#define NETIF_F_ALL_FCOE	(NETIF_F_FCOE_CRC | NETIF_F_FCOE_MTU | \
                                 NETIF_F_FSO)

/* List of features with software fallbacks. */

#define NETIF_F_GSO_SOFTWARE	(NETIF_F_ALL_TSO | NETIF_F_UFO)

/*
 * If one device supports one of these features, then enable them
 * for all in netdev_increment_features.
 */

#define NETIF_F_ONE_FOR_ALL	(NETIF_F_GSO_SOFTWARE | NETIF_F_GSO_ROBUST | \
                                 NETIF_F_SG | NETIF_F_HIGHDMA |         \
                                 NETIF_F_FRAGLIST | NETIF_F_VLAN_CHALLENGED)

/*
 * If one device doesn't support one of these features, then disable it
 * for all in netdev_increment_features.
 */

#define NETIF_F_ALL_FOR_ALL	(NETIF_F_NOCACHE_COPY | NETIF_F_FSO)

/*
 * If upper/master device has these features disabled, they must be disabled
 * on all lower/slave devices as well.
 */

#define NETIF_F_UPPER_DISABLES	NETIF_F_LRO

/* changeable features with no special hardware requirements */

#define NETIF_F_SOFT_FEATURES	(NETIF_F_GSO | NETIF_F_GRO)


#define NETIF_F_VLAN_FEATURES	(NETIF_F_HW_VLAN_CTAG_FILTER | \
                                 NETIF_F_HW_VLAN_CTAG_RX | \
                                 NETIF_F_HW_VLAN_CTAG_TX | \
                                 NETIF_F_HW_VLAN_STAG_FILTER | \
                                 NETIF_F_HW_VLAN_STAG_RX | \
                                 NETIF_F_HW_VLAN_STAG_TX)


#define NETIF_F_GSO_ENCAP_ALL	(NETIF_F_GSO_GRE |                      \
                                 NETIF_F_GSO_GRE_CSUM |                 \
                                 NETIF_F_GSO_IPXIP4 |                   \
                                 NETIF_F_GSO_IPXIP6 |                   \
                                 NETIF_F_GSO_UDP_TUNNEL |               \
                                 NETIF_F_GSO_UDP_TUNNEL_CSUM)

#endif	/* _LINUX_NETDEV_FEATURES_H */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
michal miroslaw
michal miroslaw
280
62.50%
5
14.71%
tom herbert
tom herbert
37
8.26%
8
23.53%
david s. miller
david s. miller
21
4.69%
1
2.94%
alexander duyck
alexander duyck
20
4.46%
4
11.76%
jarod wilson
jarod wilson
15
3.35%
2
5.88%
ben greear
ben greear
14
3.12%
2
5.88%
john fastabend
john fastabend
14
3.12%
2
5.88%
pravin b shelar
pravin b shelar
14
3.12%
3
8.82%
patrick mchardy
patrick mchardy
12
2.68%
1
2.94%
jiri pirko
jiri pirko
7
1.56%
1
2.94%
eric dumazet
eric dumazet
6
1.34%
2
5.88%
vlad yasevich
vlad yasevich
4
0.89%
1
2.94%
americo wang
americo wang
3
0.67%
1
2.94%
scott feldman
scott feldman
1
0.22%
1
2.94%
Total
448
100.00%
34
100.00%
  
Directory: include/linux

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.