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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. */ | |
25 | NETIF_F_HW_VLAN_TX_BIT, /* Transmit VLAN hw acceleration */ | |
26 | NETIF_F_HW_VLAN_RX_BIT, /* Receive VLAN hw acceleration */ | |
27 | NETIF_F_HW_VLAN_FILTER_BIT, /* Receive filtering on VLAN */ | |
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 */ |
a19f2a6d MM |
45 | /**/NETIF_F_GSO_LAST, /* [can't be last bit, see GSO_MASK] */ |
46 | NETIF_F_GSO_RESERVED2 /* ... free (fill GSO_MASK to 8 bits) */ | |
47 | = NETIF_F_GSO_LAST, | |
48 | ||
49 | NETIF_F_FCOE_CRC_BIT, /* FCoE CRC32 */ | |
50 | NETIF_F_SCTP_CSUM_BIT, /* SCTP checksum offload */ | |
51 | NETIF_F_FCOE_MTU_BIT, /* Supports max FCoE MTU, 2158 bytes*/ | |
52 | NETIF_F_NTUPLE_BIT, /* N-tuple filters supported */ | |
53 | NETIF_F_RXHASH_BIT, /* Receive hashing offload */ | |
54 | NETIF_F_RXCSUM_BIT, /* Receive checksumming offload */ | |
55 | NETIF_F_NOCACHE_COPY_BIT, /* Use no-cache copyfromuser */ | |
56 | NETIF_F_LOOPBACK_BIT, /* Enable loopback */ | |
36eabda3 | 57 | NETIF_F_RXFCS_BIT, /* Append FCS to skb pkt data */ |
5e0c03c8 | 58 | NETIF_F_RXALL_BIT, /* Receive errored frames too */ |
a19f2a6d MM |
59 | |
60 | /* | |
61 | * Add your fresh new feature above and remember to update | |
62 | * netdev_features_strings[] in net/core/ethtool.c and maybe | |
63 | * some feature mask #defines below. Please also describe it | |
64 | * in Documentation/networking/netdev-features.txt. | |
65 | */ | |
a59e2ecb | 66 | |
a19f2a6d MM |
67 | /**/NETDEV_FEATURE_COUNT |
68 | }; | |
a59e2ecb | 69 | |
a19f2a6d MM |
70 | /* copy'n'paste compression ;) */ |
71 | #define __NETIF_F_BIT(bit) ((netdev_features_t)1 << (bit)) | |
72 | #define __NETIF_F(name) __NETIF_F_BIT(NETIF_F_##name##_BIT) | |
73 | ||
74 | #define NETIF_F_FCOE_CRC __NETIF_F(FCOE_CRC) | |
75 | #define NETIF_F_FCOE_MTU __NETIF_F(FCOE_MTU) | |
76 | #define NETIF_F_FRAGLIST __NETIF_F(FRAGLIST) | |
77 | #define NETIF_F_FSO __NETIF_F(FSO) | |
78 | #define NETIF_F_GRO __NETIF_F(GRO) | |
79 | #define NETIF_F_GSO __NETIF_F(GSO) | |
80 | #define NETIF_F_GSO_ROBUST __NETIF_F(GSO_ROBUST) | |
81 | #define NETIF_F_HIGHDMA __NETIF_F(HIGHDMA) | |
82 | #define NETIF_F_HW_CSUM __NETIF_F(HW_CSUM) | |
83 | #define NETIF_F_HW_VLAN_FILTER __NETIF_F(HW_VLAN_FILTER) | |
84 | #define NETIF_F_HW_VLAN_RX __NETIF_F(HW_VLAN_RX) | |
85 | #define NETIF_F_HW_VLAN_TX __NETIF_F(HW_VLAN_TX) | |
86 | #define NETIF_F_IP_CSUM __NETIF_F(IP_CSUM) | |
87 | #define NETIF_F_IPV6_CSUM __NETIF_F(IPV6_CSUM) | |
88 | #define NETIF_F_LLTX __NETIF_F(LLTX) | |
89 | #define NETIF_F_LOOPBACK __NETIF_F(LOOPBACK) | |
90 | #define NETIF_F_LRO __NETIF_F(LRO) | |
91 | #define NETIF_F_NETNS_LOCAL __NETIF_F(NETNS_LOCAL) | |
92 | #define NETIF_F_NOCACHE_COPY __NETIF_F(NOCACHE_COPY) | |
a19f2a6d MM |
93 | #define NETIF_F_NTUPLE __NETIF_F(NTUPLE) |
94 | #define NETIF_F_RXCSUM __NETIF_F(RXCSUM) | |
95 | #define NETIF_F_RXHASH __NETIF_F(RXHASH) | |
96 | #define NETIF_F_SCTP_CSUM __NETIF_F(SCTP_CSUM) | |
97 | #define NETIF_F_SG __NETIF_F(SG) | |
98 | #define NETIF_F_TSO6 __NETIF_F(TSO6) | |
99 | #define NETIF_F_TSO_ECN __NETIF_F(TSO_ECN) | |
100 | #define NETIF_F_TSO __NETIF_F(TSO) | |
101 | #define NETIF_F_UFO __NETIF_F(UFO) | |
102 | #define NETIF_F_VLAN_CHALLENGED __NETIF_F(VLAN_CHALLENGED) | |
36eabda3 | 103 | #define NETIF_F_RXFCS __NETIF_F(RXFCS) |
5e0c03c8 | 104 | #define NETIF_F_RXALL __NETIF_F(RXALL) |
68c33163 | 105 | #define NETIF_F_GRE_GSO __NETIF_F(GSO_GRE) |
a59e2ecb MM |
106 | |
107 | /* Features valid for ethtool to change */ | |
108 | /* = all defined minus driver/device-class-related */ | |
109 | #define NETIF_F_NEVER_CHANGE (NETIF_F_VLAN_CHALLENGED | \ | |
110 | NETIF_F_LLTX | NETIF_F_NETNS_LOCAL) | |
a19f2a6d MM |
111 | |
112 | /* remember that ((t)1 << t_BITS) is undefined in C99 */ | |
113 | #define NETIF_F_ETHTOOL_BITS ((__NETIF_F_BIT(NETDEV_FEATURE_COUNT - 1) | \ | |
114 | (__NETIF_F_BIT(NETDEV_FEATURE_COUNT - 1) - 1)) & \ | |
115 | ~NETIF_F_NEVER_CHANGE) | |
116 | ||
117 | /* Segmentation offload feature mask */ | |
118 | #define NETIF_F_GSO_MASK (__NETIF_F_BIT(NETIF_F_GSO_LAST + 1) - \ | |
119 | __NETIF_F_BIT(NETIF_F_GSO_SHIFT)) | |
a59e2ecb MM |
120 | |
121 | /* List of features with software fallbacks. */ | |
122 | #define NETIF_F_GSO_SOFTWARE (NETIF_F_TSO | NETIF_F_TSO_ECN | \ | |
123 | NETIF_F_TSO6 | NETIF_F_UFO) | |
124 | ||
34324dc2 | 125 | #define NETIF_F_GEN_CSUM NETIF_F_HW_CSUM |
a59e2ecb MM |
126 | #define NETIF_F_V4_CSUM (NETIF_F_GEN_CSUM | NETIF_F_IP_CSUM) |
127 | #define NETIF_F_V6_CSUM (NETIF_F_GEN_CSUM | NETIF_F_IPV6_CSUM) | |
128 | #define NETIF_F_ALL_CSUM (NETIF_F_V4_CSUM | NETIF_F_V6_CSUM) | |
129 | ||
130 | #define NETIF_F_ALL_TSO (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN) | |
131 | ||
132 | #define NETIF_F_ALL_FCOE (NETIF_F_FCOE_CRC | NETIF_F_FCOE_MTU | \ | |
133 | NETIF_F_FSO) | |
134 | ||
135 | /* | |
136 | * If one device supports one of these features, then enable them | |
137 | * for all in netdev_increment_features. | |
138 | */ | |
139 | #define NETIF_F_ONE_FOR_ALL (NETIF_F_GSO_SOFTWARE | NETIF_F_GSO_ROBUST | \ | |
140 | NETIF_F_SG | NETIF_F_HIGHDMA | \ | |
141 | NETIF_F_FRAGLIST | NETIF_F_VLAN_CHALLENGED) | |
142 | /* | |
143 | * If one device doesn't support one of these features, then disable it | |
144 | * for all in netdev_increment_features. | |
145 | */ | |
146 | #define NETIF_F_ALL_FOR_ALL (NETIF_F_NOCACHE_COPY | NETIF_F_FSO) | |
147 | ||
148 | /* changeable features with no special hardware requirements */ | |
149 | #define NETIF_F_SOFT_FEATURES (NETIF_F_GSO | NETIF_F_GRO) | |
150 | ||
151 | #endif /* _LINUX_NETDEV_FEATURES_H */ |