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net: split netdev features to separate header
Move features definitions to separate header so that linux/skbuff.h won't need to include linux/netdevice.h after netdev_features_t is introduced. Signed-off-by: Michał Mirosław <[email protected]> Acked-by: Ben Hutchings <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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/* | ||
* 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 | ||
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/* Net device feature bits; if you change something, | ||
* also update netdev_features_strings[] in ethtool.c */ | ||
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#define NETIF_F_SG 1 /* Scatter/gather IO. */ | ||
#define NETIF_F_IP_CSUM 2 /* Can checksum TCP/UDP over IPv4. */ | ||
#define NETIF_F_NO_CSUM 4 /* Does not require checksum. F.e. loopack. */ | ||
#define NETIF_F_HW_CSUM 8 /* Can checksum all the packets. */ | ||
#define NETIF_F_IPV6_CSUM 16 /* Can checksum TCP/UDP over IPV6 */ | ||
#define NETIF_F_HIGHDMA 32 /* Can DMA to high memory. */ | ||
#define NETIF_F_FRAGLIST 64 /* Scatter/gather IO. */ | ||
#define NETIF_F_HW_VLAN_TX 128 /* Transmit VLAN hw acceleration */ | ||
#define NETIF_F_HW_VLAN_RX 256 /* Receive VLAN hw acceleration */ | ||
#define NETIF_F_HW_VLAN_FILTER 512 /* Receive filtering on VLAN */ | ||
#define NETIF_F_VLAN_CHALLENGED 1024 /* Device cannot handle VLAN packets */ | ||
#define NETIF_F_GSO 2048 /* Enable software GSO. */ | ||
#define NETIF_F_LLTX 4096 /* LockLess TX - deprecated. Please */ | ||
/* do not use LLTX in new drivers */ | ||
#define NETIF_F_NETNS_LOCAL 8192 /* Does not change network namespaces */ | ||
#define NETIF_F_GRO 16384 /* Generic receive offload */ | ||
#define NETIF_F_LRO 32768 /* large receive offload */ | ||
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/* the GSO_MASK reserves bits 16 through 23 */ | ||
#define NETIF_F_FCOE_CRC (1 << 24) /* FCoE CRC32 */ | ||
#define NETIF_F_SCTP_CSUM (1 << 25) /* SCTP checksum offload */ | ||
#define NETIF_F_FCOE_MTU (1 << 26) /* Supports max FCoE MTU, 2158 bytes*/ | ||
#define NETIF_F_NTUPLE (1 << 27) /* N-tuple filters supported */ | ||
#define NETIF_F_RXHASH (1 << 28) /* Receive hashing offload */ | ||
#define NETIF_F_RXCSUM (1 << 29) /* Receive checksumming offload */ | ||
#define NETIF_F_NOCACHE_COPY (1 << 30) /* Use no-cache copyfromuser */ | ||
#define NETIF_F_LOOPBACK (1 << 31) /* Enable loopback */ | ||
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/* Segmentation offload features */ | ||
#define NETIF_F_GSO_SHIFT 16 | ||
#define NETIF_F_GSO_MASK 0x00ff0000 | ||
#define NETIF_F_TSO (SKB_GSO_TCPV4 << NETIF_F_GSO_SHIFT) | ||
#define NETIF_F_UFO (SKB_GSO_UDP << NETIF_F_GSO_SHIFT) | ||
#define NETIF_F_GSO_ROBUST (SKB_GSO_DODGY << NETIF_F_GSO_SHIFT) | ||
#define NETIF_F_TSO_ECN (SKB_GSO_TCP_ECN << NETIF_F_GSO_SHIFT) | ||
#define NETIF_F_TSO6 (SKB_GSO_TCPV6 << NETIF_F_GSO_SHIFT) | ||
#define NETIF_F_FSO (SKB_GSO_FCOE << NETIF_F_GSO_SHIFT) | ||
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/* 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) | ||
#define NETIF_F_ETHTOOL_BITS (0xff3fffff & ~NETIF_F_NEVER_CHANGE) | ||
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/* List of features with software fallbacks. */ | ||
#define NETIF_F_GSO_SOFTWARE (NETIF_F_TSO | NETIF_F_TSO_ECN | \ | ||
NETIF_F_TSO6 | NETIF_F_UFO) | ||
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#define NETIF_F_GEN_CSUM (NETIF_F_HW_CSUM | NETIF_F_NO_CSUM) | ||
#define NETIF_F_V4_CSUM (NETIF_F_GEN_CSUM | NETIF_F_IP_CSUM) | ||
#define NETIF_F_V6_CSUM (NETIF_F_GEN_CSUM | NETIF_F_IPV6_CSUM) | ||
#define NETIF_F_ALL_CSUM (NETIF_F_V4_CSUM | NETIF_F_V6_CSUM) | ||
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#define NETIF_F_ALL_TSO (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN) | ||
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#define NETIF_F_ALL_FCOE (NETIF_F_FCOE_CRC | NETIF_F_FCOE_MTU | \ | ||
NETIF_F_FSO) | ||
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/* | ||
* 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) | ||
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/* changeable features with no special hardware requirements */ | ||
#define NETIF_F_SOFT_FEATURES (NETIF_F_GSO | NETIF_F_GRO) | ||
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#endif /* _LINUX_NETDEV_FEATURES_H */ |
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