[mirror_ubuntu-bionic-kernel.git] / 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>
#include <linux/bitops.h>
#include <asm/byteorder.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_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_SCTP_BIT,		/* ... SCTP fragmentation */
	NETIF_F_GSO_ESP_BIT,		/* ... ESP with TSO */
	NETIF_F_GSO_UDP_BIT,		/* ... UFO, deprecated except tuntap */
	/**/NETIF_F_GSO_LAST =		/* last bit, see GSO_MASK */
		NETIF_F_GSO_UDP_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_HW_TC_BIT,		/* Offload TC infrastructure */
	NETIF_F_HW_ESP_BIT,		/* Hardware ESP transformation offload */
	NETIF_F_HW_ESP_TX_CSUM_BIT,	/* ESP with TX checksum offload */
	NETIF_F_RX_UDP_TUNNEL_PORT_BIT, /* Offload of RX port for UDP tunnels */

	/*
	 * 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_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_GSO_SCTP	__NETIF_F(GSO_SCTP)
#define NETIF_F_GSO_ESP		__NETIF_F(GSO_ESP)
#define NETIF_F_GSO_UDP		__NETIF_F(GSO_UDP)
#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_HW_TC		__NETIF_F(HW_TC)
#define NETIF_F_HW_ESP		__NETIF_F(HW_ESP)
#define NETIF_F_HW_ESP_TX_CSUM	__NETIF_F(HW_ESP_TX_CSUM)
#define	NETIF_F_RX_UDP_TUNNEL_PORT  __NETIF_F(RX_UDP_TUNNEL_PORT)

/* Finds the next feature with the highest number of the range of start till 0.
 */
static inline int find_next_netdev_feature(u64 feature, unsigned long start)
{
	/* like BITMAP_LAST_WORD_MASK() for u64
	 * this sets the most significant 64 - start to 0.
	 */
	feature &= ~0ULL >> (-start & ((sizeof(feature) * 8) - 1));

	return fls64(feature) - 1;
}

/* This goes for the MSB to the LSB through the set feature bits,
 * mask_addr should be a u64 and bit an int
 */
#define for_each_netdev_feature(mask_addr, bit)				\
	for ((bit) = find_next_netdev_feature((mask_addr),		\
					      NETDEV_FEATURE_COUNT);	\
	     (bit) >= 0;						\
	     (bit) = find_next_netdev_feature((mask_addr), (bit) - 1))

/* 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_GSO_SCTP)

/*
 * 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 */
Commit	Line	Data
a59e2ecb MM	1	/*
	2	* Network device features.
	3	*
	4	*
	5	* This program is free software; you can redistribute it and/or
	6	* modify it under the terms of the GNU General Public License
	7	* as published by the Free Software Foundation; either version
	8	* 2 of the License, or (at your option) any later version.
	9	*/
	10	#ifndef _LINUX_NETDEV_FEATURES_H
	11	#define _LINUX_NETDEV_FEATURES_H
	12
c8f44aff	13	#include <linux/types.h>
b5523674	14	#include <linux/bitops.h>
c30445e5	15	#include <asm/byteorder.h>
c8f44aff	16
a861a8b2	17	typedef u64 netdev_features_t;
c8f44aff	18
a19f2a6d MM	19	enum {
	20	NETIF_F_SG_BIT, /* Scatter/gather IO. */
	21	NETIF_F_IP_CSUM_BIT, /* Can checksum TCP/UDP over IPv4. */
34324dc2	22	__UNUSED_NETIF_F_1,
a19f2a6d MM	23	NETIF_F_HW_CSUM_BIT, /* Can checksum all the packets. */
	24	NETIF_F_IPV6_CSUM_BIT, /* Can checksum TCP/UDP over IPV6 */
	25	NETIF_F_HIGHDMA_BIT, /* Can DMA to high memory. */
	26	NETIF_F_FRAGLIST_BIT, /* Scatter/gather IO. */
f646968f PM	27	NETIF_F_HW_VLAN_CTAG_TX_BIT, /* Transmit VLAN CTAG HW acceleration */
	28	NETIF_F_HW_VLAN_CTAG_RX_BIT, /* Receive VLAN CTAG HW acceleration */
	29	NETIF_F_HW_VLAN_CTAG_FILTER_BIT,/* Receive filtering on VLAN CTAGs */
a19f2a6d MM	30	NETIF_F_VLAN_CHALLENGED_BIT, /* Device cannot handle VLAN packets */
	31	NETIF_F_GSO_BIT, /* Enable software GSO. */
	32	NETIF_F_LLTX_BIT, /* LockLess TX - deprecated. Please */
a59e2ecb	33	/* do not use LLTX in new drivers */
a19f2a6d MM	34	NETIF_F_NETNS_LOCAL_BIT, /* Does not change network namespaces */
	35	NETIF_F_GRO_BIT, /* Generic receive offload */
	36	NETIF_F_LRO_BIT, /* large receive offload */
	37
	38	/*/NETIF_F_GSO_SHIFT, / keep the order of SKB_GSO_* bits */
	39	NETIF_F_TSO_BIT /* ... TCPv4 segmentation */
	40	= NETIF_F_GSO_SHIFT,
a19f2a6d MM	41	NETIF_F_GSO_ROBUST_BIT, /* ... ->SKB_GSO_DODGY */
a19f2a6d MM	42	NETIF_F_TSO_ECN_BIT, /* ... TCP ECN support */
cbc53e08	43	NETIF_F_TSO_MANGLEID_BIT, /* ... IPV4 ID mangling allowed */
a19f2a6d MM	44	NETIF_F_TSO6_BIT, /* ... TCPv6 segmentation */
a19f2a6d MM	45	NETIF_F_FSO_BIT, /* ... FCoE segmentation */
68c33163	46	NETIF_F_GSO_GRE_BIT, /* ... GRE with TSO */
4749c09c	47	NETIF_F_GSO_GRE_CSUM_BIT, /* ... GRE with csum with TSO */
7e13318d TH	48	NETIF_F_GSO_IPXIP4_BIT, /* ... IP4 or IP6 over IP4 with TSO */
7e13318d TH	49	NETIF_F_GSO_IPXIP6_BIT, /* ... IP4 or IP6 over IP6 with TSO */
73136267	50	NETIF_F_GSO_UDP_TUNNEL_BIT, /* ... UDP TUNNEL with TSO */
0f4f4ffa	51	NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT,/* ... UDP TUNNEL with TSO & CSUM */
802ab55a AD	52	NETIF_F_GSO_PARTIAL_BIT, /* ... Only segment inner-most L4
	53	* in hardware and all other
	54	* headers in software.
	55	*/
e585f236	56	NETIF_F_GSO_TUNNEL_REMCSUM_BIT, /* ... TUNNEL with TSO & REMCSUM */
90017acc	57	NETIF_F_GSO_SCTP_BIT, /* ... SCTP fragmentation */
c7ef8f0c	58	NETIF_F_GSO_ESP_BIT, /* ... ESP with TSO */
0c19f846	59	NETIF_F_GSO_UDP_BIT, /* ... UFO, deprecated except tuntap */
73136267	60	/*/NETIF_F_GSO_LAST = / last bit, see GSO_MASK */
0c19f846	61	NETIF_F_GSO_UDP_BIT,
a19f2a6d MM	62
a19f2a6d MM	63	NETIF_F_FCOE_CRC_BIT, /* FCoE CRC32 */
53692b1d	64	NETIF_F_SCTP_CRC_BIT, /* SCTP checksum offload */
a19f2a6d MM	65	NETIF_F_FCOE_MTU_BIT, /* Supports max FCoE MTU, 2158 bytes*/
	66	NETIF_F_NTUPLE_BIT, /* N-tuple filters supported */
	67	NETIF_F_RXHASH_BIT, /* Receive hashing offload */
	68	NETIF_F_RXCSUM_BIT, /* Receive checksumming offload */
	69	NETIF_F_NOCACHE_COPY_BIT, /* Use no-cache copyfromuser */
	70	NETIF_F_LOOPBACK_BIT, /* Enable loopback */
36eabda3	71	NETIF_F_RXFCS_BIT, /* Append FCS to skb pkt data */
5e0c03c8	72	NETIF_F_RXALL_BIT, /* Receive errored frames too */
4ada8db3 DM	73	NETIF_F_HW_VLAN_STAG_TX_BIT, /* Transmit VLAN STAG HW acceleration */
	74	NETIF_F_HW_VLAN_STAG_RX_BIT, /* Receive VLAN STAG HW acceleration */
	75	NETIF_F_HW_VLAN_STAG_FILTER_BIT,/* Receive filtering on VLAN STAGs */
a6cc0cfa	76	NETIF_F_HW_L2FW_DOFFLOAD_BIT, /* Allow L2 Forwarding in Hardware */
a19f2a6d	77
1c78c64e	78	NETIF_F_HW_TC_BIT, /* Offload TC infrastructure */
c7ef8f0c SK	79	NETIF_F_HW_ESP_BIT, /* Hardware ESP transformation offload */
c7ef8f0c SK	80	NETIF_F_HW_ESP_TX_CSUM_BIT, /* ESP with TX checksum offload */
d764a122	81	NETIF_F_RX_UDP_TUNNEL_PORT_BIT, /* Offload of RX port for UDP tunnels */
1c78c64e	82
a19f2a6d MM	83	/*
	84	* Add your fresh new feature above and remember to update
	85	* netdev_features_strings[] in net/core/ethtool.c and maybe
	86	* some feature mask #defines below. Please also describe it
	87	* in Documentation/networking/netdev-features.txt.
	88	*/
a59e2ecb	89
a19f2a6d MM	90	/**/NETDEV_FEATURE_COUNT
a19f2a6d MM	91	};
a59e2ecb	92
a19f2a6d MM	93	/* copy'n'paste compression ;) */
	94	#define __NETIF_F_BIT(bit) ((netdev_features_t)1 << (bit))
	95	#define __NETIF_F(name) __NETIF_F_BIT(NETIF_F_##name##_BIT)
	96
	97	#define NETIF_F_FCOE_CRC __NETIF_F(FCOE_CRC)
	98	#define NETIF_F_FCOE_MTU __NETIF_F(FCOE_MTU)
	99	#define NETIF_F_FRAGLIST __NETIF_F(FRAGLIST)
	100	#define NETIF_F_FSO __NETIF_F(FSO)
	101	#define NETIF_F_GRO __NETIF_F(GRO)
	102	#define NETIF_F_GSO __NETIF_F(GSO)
	103	#define NETIF_F_GSO_ROBUST __NETIF_F(GSO_ROBUST)
	104	#define NETIF_F_HIGHDMA __NETIF_F(HIGHDMA)
	105	#define NETIF_F_HW_CSUM __NETIF_F(HW_CSUM)
f646968f PM	106	#define NETIF_F_HW_VLAN_CTAG_FILTER __NETIF_F(HW_VLAN_CTAG_FILTER)
	107	#define NETIF_F_HW_VLAN_CTAG_RX __NETIF_F(HW_VLAN_CTAG_RX)
	108	#define NETIF_F_HW_VLAN_CTAG_TX __NETIF_F(HW_VLAN_CTAG_TX)
a19f2a6d MM	109	#define NETIF_F_IP_CSUM __NETIF_F(IP_CSUM)
	110	#define NETIF_F_IPV6_CSUM __NETIF_F(IPV6_CSUM)
	111	#define NETIF_F_LLTX __NETIF_F(LLTX)
	112	#define NETIF_F_LOOPBACK __NETIF_F(LOOPBACK)
	113	#define NETIF_F_LRO __NETIF_F(LRO)
	114	#define NETIF_F_NETNS_LOCAL __NETIF_F(NETNS_LOCAL)
	115	#define NETIF_F_NOCACHE_COPY __NETIF_F(NOCACHE_COPY)
a19f2a6d MM	116	#define NETIF_F_NTUPLE __NETIF_F(NTUPLE)
	117	#define NETIF_F_RXCSUM __NETIF_F(RXCSUM)
	118	#define NETIF_F_RXHASH __NETIF_F(RXHASH)
53692b1d	119	#define NETIF_F_SCTP_CRC __NETIF_F(SCTP_CRC)
a19f2a6d MM	120	#define NETIF_F_SG __NETIF_F(SG)
	121	#define NETIF_F_TSO6 __NETIF_F(TSO6)
	122	#define NETIF_F_TSO_ECN __NETIF_F(TSO_ECN)
	123	#define NETIF_F_TSO __NETIF_F(TSO)
a19f2a6d	124	#define NETIF_F_VLAN_CHALLENGED __NETIF_F(VLAN_CHALLENGED)
36eabda3	125	#define NETIF_F_RXFCS __NETIF_F(RXFCS)
5e0c03c8	126	#define NETIF_F_RXALL __NETIF_F(RXALL)
a362db3d	127	#define NETIF_F_GSO_GRE __NETIF_F(GSO_GRE)
4749c09c	128	#define NETIF_F_GSO_GRE_CSUM __NETIF_F(GSO_GRE_CSUM)
7e13318d TH	129	#define NETIF_F_GSO_IPXIP4 __NETIF_F(GSO_IPXIP4)
7e13318d TH	130	#define NETIF_F_GSO_IPXIP6 __NETIF_F(GSO_IPXIP6)
a362db3d	131	#define NETIF_F_GSO_UDP_TUNNEL __NETIF_F(GSO_UDP_TUNNEL)
4b28252c	132	#define NETIF_F_GSO_UDP_TUNNEL_CSUM __NETIF_F(GSO_UDP_TUNNEL_CSUM)
cbc53e08	133	#define NETIF_F_TSO_MANGLEID __NETIF_F(TSO_MANGLEID)
802ab55a	134	#define NETIF_F_GSO_PARTIAL __NETIF_F(GSO_PARTIAL)
e585f236	135	#define NETIF_F_GSO_TUNNEL_REMCSUM __NETIF_F(GSO_TUNNEL_REMCSUM)
90017acc	136	#define NETIF_F_GSO_SCTP __NETIF_F(GSO_SCTP)
c7ef8f0c	137	#define NETIF_F_GSO_ESP __NETIF_F(GSO_ESP)
0c19f846	138	#define NETIF_F_GSO_UDP __NETIF_F(GSO_UDP)
4ada8db3 DM	139	#define NETIF_F_HW_VLAN_STAG_FILTER __NETIF_F(HW_VLAN_STAG_FILTER)
	140	#define NETIF_F_HW_VLAN_STAG_RX __NETIF_F(HW_VLAN_STAG_RX)
	141	#define NETIF_F_HW_VLAN_STAG_TX __NETIF_F(HW_VLAN_STAG_TX)
a6cc0cfa	142	#define NETIF_F_HW_L2FW_DOFFLOAD __NETIF_F(HW_L2FW_DOFFLOAD)
1c78c64e	143	#define NETIF_F_HW_TC __NETIF_F(HW_TC)
c7ef8f0c SK	144	#define NETIF_F_HW_ESP __NETIF_F(HW_ESP)
c7ef8f0c SK	145	#define NETIF_F_HW_ESP_TX_CSUM __NETIF_F(HW_ESP_TX_CSUM)
d764a122	146	#define NETIF_F_RX_UDP_TUNNEL_PORT __NETIF_F(RX_UDP_TUNNEL_PORT)
a59e2ecb	147
c30445e5 HM	148	/* Finds the next feature with the highest number of the range of start till 0.
	149	*/
	150	static inline int find_next_netdev_feature(u64 feature, unsigned long start)
	151	{
	152	/* like BITMAP_LAST_WORD_MASK() for u64
	153	* this sets the most significant 64 - start to 0.
	154	*/
	155	feature &= ~0ULL >> (-start & ((sizeof(feature) * 8) - 1));
	156
	157	return fls64(feature) - 1;
	158	}
	159
	160	/* This goes for the MSB to the LSB through the set feature bits,
	161	* mask_addr should be a u64 and bit an int
	162	*/
	163	#define for_each_netdev_feature(mask_addr, bit) \
	164	for ((bit) = find_next_netdev_feature((mask_addr), \
	165	NETDEV_FEATURE_COUNT); \
	166	(bit) >= 0; \
	167	(bit) = find_next_netdev_feature((mask_addr), (bit) - 1))
fd867d51	168
a59e2ecb MM	169	/* Features valid for ethtool to change */
	170	/* = all defined minus driver/device-class-related */
	171	#define NETIF_F_NEVER_CHANGE (NETIF_F_VLAN_CHALLENGED \| \
	172	NETIF_F_LLTX \| NETIF_F_NETNS_LOCAL)
a19f2a6d MM	173
	174	/* remember that ((t)1 << t_BITS) is undefined in C99 */
	175	#define NETIF_F_ETHTOOL_BITS ((__NETIF_F_BIT(NETDEV_FEATURE_COUNT - 1) \| \
	176	(__NETIF_F_BIT(NETDEV_FEATURE_COUNT - 1) - 1)) & \
	177	~NETIF_F_NEVER_CHANGE)
	178
	179	/* Segmentation offload feature mask */
	180	#define NETIF_F_GSO_MASK (__NETIF_F_BIT(NETIF_F_GSO_LAST + 1) - \
	181	__NETIF_F_BIT(NETIF_F_GSO_SHIFT))
a59e2ecb	182
c8cd0989	183	/* List of IP checksum features. Note that NETIF_F_ HW_CSUM should not be
a188222b TH	184	* set in features when NETIF_F_IP_CSUM or NETIF_F_IPV6_CSUM are set--
	185	* this would be contradictory
	186	*/
c8cd0989 TH	187	#define NETIF_F_CSUM_MASK (NETIF_F_IP_CSUM \| NETIF_F_IPV6_CSUM \| \
c8cd0989 TH	188	NETIF_F_HW_CSUM)
a59e2ecb	189
756ca874 AD	190	#define NETIF_F_ALL_TSO (NETIF_F_TSO \| NETIF_F_TSO6 \| \
756ca874 AD	191	NETIF_F_TSO_ECN \| NETIF_F_TSO_MANGLEID)
a59e2ecb MM	192
	193	#define NETIF_F_ALL_FCOE (NETIF_F_FCOE_CRC \| NETIF_F_FCOE_MTU \| \
	194	NETIF_F_FSO)
	195
b1c20f0b	196	/* List of features with software fallbacks. */
d9d30adf	197	#define NETIF_F_GSO_SOFTWARE (NETIF_F_ALL_TSO \| \
90017acc	198	NETIF_F_GSO_SCTP)
b1c20f0b	199
a59e2ecb MM	200	/*
	201	* If one device supports one of these features, then enable them
	202	* for all in netdev_increment_features.
	203	*/
	204	#define NETIF_F_ONE_FOR_ALL (NETIF_F_GSO_SOFTWARE \| NETIF_F_GSO_ROBUST \| \
	205	NETIF_F_SG \| NETIF_F_HIGHDMA \| \
7889cbee	206	NETIF_F_FRAGLIST \| NETIF_F_VLAN_CHALLENGED)
aafb3e98	207
a59e2ecb MM	208	/*
	209	* If one device doesn't support one of these features, then disable it
	210	* for all in netdev_increment_features.
	211	*/
	212	#define NETIF_F_ALL_FOR_ALL (NETIF_F_NOCACHE_COPY \| NETIF_F_FSO)
	213
fd867d51 JW	214	/*
	215	* If upper/master device has these features disabled, they must be disabled
	216	* on all lower/slave devices as well.
	217	*/
	218	#define NETIF_F_UPPER_DISABLES NETIF_F_LRO
	219
a59e2ecb MM	220	/* changeable features with no special hardware requirements */
	221	#define NETIF_F_SOFT_FEATURES (NETIF_F_GSO \| NETIF_F_GRO)
	222
2adb956b VY	223	#define NETIF_F_VLAN_FEATURES (NETIF_F_HW_VLAN_CTAG_FILTER \| \
	224	NETIF_F_HW_VLAN_CTAG_RX \| \
	225	NETIF_F_HW_VLAN_CTAG_TX \| \
	226	NETIF_F_HW_VLAN_STAG_FILTER \| \
	227	NETIF_F_HW_VLAN_STAG_RX \| \
	228	NETIF_F_HW_VLAN_STAG_TX)
	229
f6eec614 PS	230	#define NETIF_F_GSO_ENCAP_ALL (NETIF_F_GSO_GRE \| \
f6eec614 PS	231	NETIF_F_GSO_GRE_CSUM \| \
7e13318d TH	232	NETIF_F_GSO_IPXIP4 \| \
7e13318d TH	233	NETIF_F_GSO_IPXIP6 \| \
f6eec614	234	NETIF_F_GSO_UDP_TUNNEL \| \
59b93b41	235	NETIF_F_GSO_UDP_TUNNEL_CSUM)
f6eec614	236
a59e2ecb	237	#endif /* _LINUX_NETDEV_FEATURES_H */