projects / deliverable / linux.git / blame
| 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 MM |
13 | #include <linux/types.h> |
| 14 | ||
| a861a8b2 | 15 | typedef u64 netdev_features_t; |
| c8f44aff | 16 | |
| a19f2a6d MM |
17 | enum { |
| 18 | NETIF_F_SG_BIT, /* Scatter/gather IO. */ | |
| 19 | NETIF_F_IP_CSUM_BIT, /* Can checksum TCP/UDP over IPv4. */ | |
| 34324dc2 | 20 | __UNUSED_NETIF_F_1, |
| a19f2a6d MM |
21 | NETIF_F_HW_CSUM_BIT, /* Can checksum all the packets. */ |
| 22 | NETIF_F_IPV6_CSUM_BIT, /* Can checksum TCP/UDP over IPV6 */ | |
| 23 | NETIF_F_HIGHDMA_BIT, /* Can DMA to high memory. */ | |
| 24 | NETIF_F_FRAGLIST_BIT, /* Scatter/gather IO. */ | |
| f646968f PM |
25 | NETIF_F_HW_VLAN_CTAG_TX_BIT, /* Transmit VLAN CTAG HW acceleration */ |
| 26 | NETIF_F_HW_VLAN_CTAG_RX_BIT, /* Receive VLAN CTAG HW acceleration */ | |
| 27 | NETIF_F_HW_VLAN_CTAG_FILTER_BIT,/* Receive filtering on VLAN CTAGs */ | |
| a19f2a6d MM |
28 | NETIF_F_VLAN_CHALLENGED_BIT, /* Device cannot handle VLAN packets */ |
| 29 | NETIF_F_GSO_BIT, /* Enable software GSO. */ | |
| 30 | NETIF_F_LLTX_BIT, /* LockLess TX - deprecated. Please */ | |
| a59e2ecb | 31 | /* do not use LLTX in new drivers */ |
| a19f2a6d MM |
32 | NETIF_F_NETNS_LOCAL_BIT, /* Does not change network namespaces */ |
| 33 | NETIF_F_GRO_BIT, /* Generic receive offload */ | |
| 34 | NETIF_F_LRO_BIT, /* large receive offload */ | |
| 35 | ||
| 36 | /**/NETIF_F_GSO_SHIFT, /* keep the order of SKB_GSO_* bits */ | |
| 37 | NETIF_F_TSO_BIT /* ... TCPv4 segmentation */ | |
| 38 | = NETIF_F_GSO_SHIFT, | |
| 39 | NETIF_F_UFO_BIT, /* ... UDPv4 fragmentation */ | |
| 40 | NETIF_F_GSO_ROBUST_BIT, /* ... ->SKB_GSO_DODGY */ | |
| 41 | NETIF_F_TSO_ECN_BIT, /* ... TCP ECN support */ | |
| 42 | NETIF_F_TSO6_BIT, /* ... TCPv6 segmentation */ | |
| 43 | NETIF_F_FSO_BIT, /* ... FCoE segmentation */ | |
| 68c33163 | 44 | NETIF_F_GSO_GRE_BIT, /* ... GRE with TSO */ |
| cb32f511 | 45 | NETIF_F_GSO_IPIP_BIT, /* ... IPIP tunnel with TSO */ |
| 73136267 | 46 | NETIF_F_GSO_UDP_TUNNEL_BIT, /* ... UDP TUNNEL with TSO */ |
| 0d89d203 | 47 | NETIF_F_GSO_MPLS_BIT, /* ... MPLS segmentation */ |
| 73136267 | 48 | /**/NETIF_F_GSO_LAST = /* last bit, see GSO_MASK */ |
| 0d89d203 | 49 | NETIF_F_GSO_MPLS_BIT, |
| a19f2a6d MM |
50 | |
| 51 | NETIF_F_FCOE_CRC_BIT, /* FCoE CRC32 */ | |
| 52 | NETIF_F_SCTP_CSUM_BIT, /* SCTP checksum offload */ | |
| 53 | NETIF_F_FCOE_MTU_BIT, /* Supports max FCoE MTU, 2158 bytes*/ | |
| 54 | NETIF_F_NTUPLE_BIT, /* N-tuple filters supported */ | |
| 55 | NETIF_F_RXHASH_BIT, /* Receive hashing offload */ | |
| 56 | NETIF_F_RXCSUM_BIT, /* Receive checksumming offload */ | |
| 57 | NETIF_F_NOCACHE_COPY_BIT, /* Use no-cache copyfromuser */ | |
| 58 | NETIF_F_LOOPBACK_BIT, /* Enable loopback */ | |
| 36eabda3 | 59 | NETIF_F_RXFCS_BIT, /* Append FCS to skb pkt data */ |
| 5e0c03c8 | 60 | NETIF_F_RXALL_BIT, /* Receive errored frames too */ |
| 4ada8db3 DM |
61 | NETIF_F_HW_VLAN_STAG_TX_BIT, /* Transmit VLAN STAG HW acceleration */ |
| 62 | NETIF_F_HW_VLAN_STAG_RX_BIT, /* Receive VLAN STAG HW acceleration */ | |
| 63 | NETIF_F_HW_VLAN_STAG_FILTER_BIT,/* Receive filtering on VLAN STAGs */ | |
| a19f2a6d MM |
64 | |
| 65 | /* | |
| 66 | * Add your fresh new feature above and remember to update | |
| 67 | * netdev_features_strings[] in net/core/ethtool.c and maybe | |
| 68 | * some feature mask #defines below. Please also describe it | |
| 69 | * in Documentation/networking/netdev-features.txt. | |
| 70 | */ | |
| a59e2ecb | 71 | |
| a19f2a6d MM |
72 | /**/NETDEV_FEATURE_COUNT |
| 73 | }; | |
| a59e2ecb | 74 | |
| a19f2a6d MM |
75 | /* copy'n'paste compression ;) */ |
| 76 | #define __NETIF_F_BIT(bit) ((netdev_features_t)1 << (bit)) | |
| 77 | #define __NETIF_F(name) __NETIF_F_BIT(NETIF_F_##name##_BIT) | |
| 78 | ||
| 79 | #define NETIF_F_FCOE_CRC __NETIF_F(FCOE_CRC) | |
| 80 | #define NETIF_F_FCOE_MTU __NETIF_F(FCOE_MTU) | |
| 81 | #define NETIF_F_FRAGLIST __NETIF_F(FRAGLIST) | |
| 82 | #define NETIF_F_FSO __NETIF_F(FSO) | |
| 83 | #define NETIF_F_GRO __NETIF_F(GRO) | |
| 84 | #define NETIF_F_GSO __NETIF_F(GSO) | |
| 85 | #define NETIF_F_GSO_ROBUST __NETIF_F(GSO_ROBUST) | |
| 86 | #define NETIF_F_HIGHDMA __NETIF_F(HIGHDMA) | |
| 87 | #define NETIF_F_HW_CSUM __NETIF_F(HW_CSUM) | |
| f646968f PM |
88 | #define NETIF_F_HW_VLAN_CTAG_FILTER __NETIF_F(HW_VLAN_CTAG_FILTER) |
| 89 | #define NETIF_F_HW_VLAN_CTAG_RX __NETIF_F(HW_VLAN_CTAG_RX) | |
| 90 | #define NETIF_F_HW_VLAN_CTAG_TX __NETIF_F(HW_VLAN_CTAG_TX) | |
| a19f2a6d MM |
91 | #define NETIF_F_IP_CSUM __NETIF_F(IP_CSUM) |
| 92 | #define NETIF_F_IPV6_CSUM __NETIF_F(IPV6_CSUM) | |
| 93 | #define NETIF_F_LLTX __NETIF_F(LLTX) | |
| 94 | #define NETIF_F_LOOPBACK __NETIF_F(LOOPBACK) | |
| 95 | #define NETIF_F_LRO __NETIF_F(LRO) | |
| 96 | #define NETIF_F_NETNS_LOCAL __NETIF_F(NETNS_LOCAL) | |
| 97 | #define NETIF_F_NOCACHE_COPY __NETIF_F(NOCACHE_COPY) | |
| a19f2a6d MM |
98 | #define NETIF_F_NTUPLE __NETIF_F(NTUPLE) |
| 99 | #define NETIF_F_RXCSUM __NETIF_F(RXCSUM) | |
| 100 | #define NETIF_F_RXHASH __NETIF_F(RXHASH) | |
| 101 | #define NETIF_F_SCTP_CSUM __NETIF_F(SCTP_CSUM) | |
| 102 | #define NETIF_F_SG __NETIF_F(SG) | |
| 103 | #define NETIF_F_TSO6 __NETIF_F(TSO6) | |
| 104 | #define NETIF_F_TSO_ECN __NETIF_F(TSO_ECN) | |
| 105 | #define NETIF_F_TSO __NETIF_F(TSO) | |
| 106 | #define NETIF_F_UFO __NETIF_F(UFO) | |
| 107 | #define NETIF_F_VLAN_CHALLENGED __NETIF_F(VLAN_CHALLENGED) | |
| 36eabda3 | 108 | #define NETIF_F_RXFCS __NETIF_F(RXFCS) |
| 5e0c03c8 | 109 | #define NETIF_F_RXALL __NETIF_F(RXALL) |
| a362db3d | 110 | #define NETIF_F_GSO_GRE __NETIF_F(GSO_GRE) |
| cb32f511 | 111 | #define NETIF_F_GSO_IPIP __NETIF_F(GSO_IPIP) |
| a362db3d | 112 | #define NETIF_F_GSO_UDP_TUNNEL __NETIF_F(GSO_UDP_TUNNEL) |
| 0d89d203 | 113 | #define NETIF_F_GSO_MPLS __NETIF_F(GSO_MPLS) |
| 4ada8db3 DM |
114 | #define NETIF_F_HW_VLAN_STAG_FILTER __NETIF_F(HW_VLAN_STAG_FILTER) |
| 115 | #define NETIF_F_HW_VLAN_STAG_RX __NETIF_F(HW_VLAN_STAG_RX) | |
| 116 | #define NETIF_F_HW_VLAN_STAG_TX __NETIF_F(HW_VLAN_STAG_TX) | |
| a59e2ecb MM |
117 | |
| 118 | /* Features valid for ethtool to change */ | |
| 119 | /* = all defined minus driver/device-class-related */ | |
| 120 | #define NETIF_F_NEVER_CHANGE (NETIF_F_VLAN_CHALLENGED | \ | |
| 121 | NETIF_F_LLTX | NETIF_F_NETNS_LOCAL) | |
| a19f2a6d MM |
122 | |
| 123 | /* remember that ((t)1 << t_BITS) is undefined in C99 */ | |
| 124 | #define NETIF_F_ETHTOOL_BITS ((__NETIF_F_BIT(NETDEV_FEATURE_COUNT - 1) | \ | |
| 125 | (__NETIF_F_BIT(NETDEV_FEATURE_COUNT - 1) - 1)) & \ | |
| 126 | ~NETIF_F_NEVER_CHANGE) | |
| 127 | ||
| 128 | /* Segmentation offload feature mask */ | |
| 129 | #define NETIF_F_GSO_MASK (__NETIF_F_BIT(NETIF_F_GSO_LAST + 1) - \ | |
| 130 | __NETIF_F_BIT(NETIF_F_GSO_SHIFT)) | |
| a59e2ecb MM |
131 | |
| 132 | /* List of features with software fallbacks. */ | |
| 133 | #define NETIF_F_GSO_SOFTWARE (NETIF_F_TSO | NETIF_F_TSO_ECN | \ | |
| 134 | NETIF_F_TSO6 | NETIF_F_UFO) | |
| 135 | ||
| 34324dc2 | 136 | #define NETIF_F_GEN_CSUM NETIF_F_HW_CSUM |
| a59e2ecb MM |
137 | #define NETIF_F_V4_CSUM (NETIF_F_GEN_CSUM | NETIF_F_IP_CSUM) |
| 138 | #define NETIF_F_V6_CSUM (NETIF_F_GEN_CSUM | NETIF_F_IPV6_CSUM) | |
| 139 | #define NETIF_F_ALL_CSUM (NETIF_F_V4_CSUM | NETIF_F_V6_CSUM) | |
| 140 | ||
| 141 | #define NETIF_F_ALL_TSO (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN) | |
| 142 | ||
| 143 | #define NETIF_F_ALL_FCOE (NETIF_F_FCOE_CRC | NETIF_F_FCOE_MTU | \ | |
| 144 | NETIF_F_FSO) | |
| 145 | ||
| 146 | /* | |
| 147 | * If one device supports one of these features, then enable them | |
| 148 | * for all in netdev_increment_features. | |
| 149 | */ | |
| 150 | #define NETIF_F_ONE_FOR_ALL (NETIF_F_GSO_SOFTWARE | NETIF_F_GSO_ROBUST | \ | |
| 151 | NETIF_F_SG | NETIF_F_HIGHDMA | \ | |
| 152 | NETIF_F_FRAGLIST | NETIF_F_VLAN_CHALLENGED) | |
| 153 | /* | |
| 154 | * If one device doesn't support one of these features, then disable it | |
| 155 | * for all in netdev_increment_features. | |
| 156 | */ | |
| 157 | #define NETIF_F_ALL_FOR_ALL (NETIF_F_NOCACHE_COPY | NETIF_F_FSO) | |
| 158 | ||
| 159 | /* changeable features with no special hardware requirements */ | |
| 160 | #define NETIF_F_SOFT_FEATURES (NETIF_F_GSO | NETIF_F_GRO) | |
| 161 | ||
| 162 | #endif /* _LINUX_NETDEV_FEATURES_H */ |