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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. */ | |
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 */ |
61c1db7f | 46 | NETIF_F_GSO_SIT_BIT, /* ... SIT tunnel with TSO */ |
73136267 | 47 | NETIF_F_GSO_UDP_TUNNEL_BIT, /* ... UDP TUNNEL with TSO */ |
0f4f4ffa | 48 | NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT,/* ... UDP TUNNEL with TSO & CSUM */ |
0d89d203 | 49 | NETIF_F_GSO_MPLS_BIT, /* ... MPLS segmentation */ |
73136267 | 50 | /**/NETIF_F_GSO_LAST = /* last bit, see GSO_MASK */ |
0d89d203 | 51 | NETIF_F_GSO_MPLS_BIT, |
a19f2a6d MM |
52 | |
53 | NETIF_F_FCOE_CRC_BIT, /* FCoE CRC32 */ | |
54 | NETIF_F_SCTP_CSUM_BIT, /* SCTP checksum offload */ | |
55 | NETIF_F_FCOE_MTU_BIT, /* Supports max FCoE MTU, 2158 bytes*/ | |
56 | NETIF_F_NTUPLE_BIT, /* N-tuple filters supported */ | |
57 | NETIF_F_RXHASH_BIT, /* Receive hashing offload */ | |
58 | NETIF_F_RXCSUM_BIT, /* Receive checksumming offload */ | |
59 | NETIF_F_NOCACHE_COPY_BIT, /* Use no-cache copyfromuser */ | |
60 | NETIF_F_LOOPBACK_BIT, /* Enable loopback */ | |
36eabda3 | 61 | NETIF_F_RXFCS_BIT, /* Append FCS to skb pkt data */ |
5e0c03c8 | 62 | NETIF_F_RXALL_BIT, /* Receive errored frames too */ |
4ada8db3 DM |
63 | NETIF_F_HW_VLAN_STAG_TX_BIT, /* Transmit VLAN STAG HW acceleration */ |
64 | NETIF_F_HW_VLAN_STAG_RX_BIT, /* Receive VLAN STAG HW acceleration */ | |
65 | NETIF_F_HW_VLAN_STAG_FILTER_BIT,/* Receive filtering on VLAN STAGs */ | |
a6cc0cfa | 66 | NETIF_F_HW_L2FW_DOFFLOAD_BIT, /* Allow L2 Forwarding in Hardware */ |
d0290214 | 67 | NETIF_F_BUSY_POLL_BIT, /* Busy poll */ |
a19f2a6d MM |
68 | |
69 | /* | |
70 | * Add your fresh new feature above and remember to update | |
71 | * netdev_features_strings[] in net/core/ethtool.c and maybe | |
72 | * some feature mask #defines below. Please also describe it | |
73 | * in Documentation/networking/netdev-features.txt. | |
74 | */ | |
a59e2ecb | 75 | |
a19f2a6d MM |
76 | /**/NETDEV_FEATURE_COUNT |
77 | }; | |
a59e2ecb | 78 | |
a19f2a6d MM |
79 | /* copy'n'paste compression ;) */ |
80 | #define __NETIF_F_BIT(bit) ((netdev_features_t)1 << (bit)) | |
81 | #define __NETIF_F(name) __NETIF_F_BIT(NETIF_F_##name##_BIT) | |
82 | ||
83 | #define NETIF_F_FCOE_CRC __NETIF_F(FCOE_CRC) | |
84 | #define NETIF_F_FCOE_MTU __NETIF_F(FCOE_MTU) | |
85 | #define NETIF_F_FRAGLIST __NETIF_F(FRAGLIST) | |
86 | #define NETIF_F_FSO __NETIF_F(FSO) | |
87 | #define NETIF_F_GRO __NETIF_F(GRO) | |
88 | #define NETIF_F_GSO __NETIF_F(GSO) | |
89 | #define NETIF_F_GSO_ROBUST __NETIF_F(GSO_ROBUST) | |
90 | #define NETIF_F_HIGHDMA __NETIF_F(HIGHDMA) | |
91 | #define NETIF_F_HW_CSUM __NETIF_F(HW_CSUM) | |
f646968f PM |
92 | #define NETIF_F_HW_VLAN_CTAG_FILTER __NETIF_F(HW_VLAN_CTAG_FILTER) |
93 | #define NETIF_F_HW_VLAN_CTAG_RX __NETIF_F(HW_VLAN_CTAG_RX) | |
94 | #define NETIF_F_HW_VLAN_CTAG_TX __NETIF_F(HW_VLAN_CTAG_TX) | |
a19f2a6d MM |
95 | #define NETIF_F_IP_CSUM __NETIF_F(IP_CSUM) |
96 | #define NETIF_F_IPV6_CSUM __NETIF_F(IPV6_CSUM) | |
97 | #define NETIF_F_LLTX __NETIF_F(LLTX) | |
98 | #define NETIF_F_LOOPBACK __NETIF_F(LOOPBACK) | |
99 | #define NETIF_F_LRO __NETIF_F(LRO) | |
100 | #define NETIF_F_NETNS_LOCAL __NETIF_F(NETNS_LOCAL) | |
101 | #define NETIF_F_NOCACHE_COPY __NETIF_F(NOCACHE_COPY) | |
a19f2a6d MM |
102 | #define NETIF_F_NTUPLE __NETIF_F(NTUPLE) |
103 | #define NETIF_F_RXCSUM __NETIF_F(RXCSUM) | |
104 | #define NETIF_F_RXHASH __NETIF_F(RXHASH) | |
105 | #define NETIF_F_SCTP_CSUM __NETIF_F(SCTP_CSUM) | |
106 | #define NETIF_F_SG __NETIF_F(SG) | |
107 | #define NETIF_F_TSO6 __NETIF_F(TSO6) | |
108 | #define NETIF_F_TSO_ECN __NETIF_F(TSO_ECN) | |
109 | #define NETIF_F_TSO __NETIF_F(TSO) | |
110 | #define NETIF_F_UFO __NETIF_F(UFO) | |
111 | #define NETIF_F_VLAN_CHALLENGED __NETIF_F(VLAN_CHALLENGED) | |
36eabda3 | 112 | #define NETIF_F_RXFCS __NETIF_F(RXFCS) |
5e0c03c8 | 113 | #define NETIF_F_RXALL __NETIF_F(RXALL) |
a362db3d | 114 | #define NETIF_F_GSO_GRE __NETIF_F(GSO_GRE) |
cb32f511 | 115 | #define NETIF_F_GSO_IPIP __NETIF_F(GSO_IPIP) |
61c1db7f | 116 | #define NETIF_F_GSO_SIT __NETIF_F(GSO_SIT) |
a362db3d | 117 | #define NETIF_F_GSO_UDP_TUNNEL __NETIF_F(GSO_UDP_TUNNEL) |
0d89d203 | 118 | #define NETIF_F_GSO_MPLS __NETIF_F(GSO_MPLS) |
4ada8db3 DM |
119 | #define NETIF_F_HW_VLAN_STAG_FILTER __NETIF_F(HW_VLAN_STAG_FILTER) |
120 | #define NETIF_F_HW_VLAN_STAG_RX __NETIF_F(HW_VLAN_STAG_RX) | |
121 | #define NETIF_F_HW_VLAN_STAG_TX __NETIF_F(HW_VLAN_STAG_TX) | |
a6cc0cfa | 122 | #define NETIF_F_HW_L2FW_DOFFLOAD __NETIF_F(HW_L2FW_DOFFLOAD) |
d0290214 | 123 | #define NETIF_F_BUSY_POLL __NETIF_F(BUSY_POLL) |
a59e2ecb MM |
124 | |
125 | /* Features valid for ethtool to change */ | |
126 | /* = all defined minus driver/device-class-related */ | |
127 | #define NETIF_F_NEVER_CHANGE (NETIF_F_VLAN_CHALLENGED | \ | |
128 | NETIF_F_LLTX | NETIF_F_NETNS_LOCAL) | |
a19f2a6d MM |
129 | |
130 | /* remember that ((t)1 << t_BITS) is undefined in C99 */ | |
131 | #define NETIF_F_ETHTOOL_BITS ((__NETIF_F_BIT(NETDEV_FEATURE_COUNT - 1) | \ | |
132 | (__NETIF_F_BIT(NETDEV_FEATURE_COUNT - 1) - 1)) & \ | |
133 | ~NETIF_F_NEVER_CHANGE) | |
134 | ||
135 | /* Segmentation offload feature mask */ | |
136 | #define NETIF_F_GSO_MASK (__NETIF_F_BIT(NETIF_F_GSO_LAST + 1) - \ | |
137 | __NETIF_F_BIT(NETIF_F_GSO_SHIFT)) | |
a59e2ecb MM |
138 | |
139 | /* List of features with software fallbacks. */ | |
140 | #define NETIF_F_GSO_SOFTWARE (NETIF_F_TSO | NETIF_F_TSO_ECN | \ | |
141 | NETIF_F_TSO6 | NETIF_F_UFO) | |
142 | ||
34324dc2 | 143 | #define NETIF_F_GEN_CSUM NETIF_F_HW_CSUM |
a59e2ecb MM |
144 | #define NETIF_F_V4_CSUM (NETIF_F_GEN_CSUM | NETIF_F_IP_CSUM) |
145 | #define NETIF_F_V6_CSUM (NETIF_F_GEN_CSUM | NETIF_F_IPV6_CSUM) | |
146 | #define NETIF_F_ALL_CSUM (NETIF_F_V4_CSUM | NETIF_F_V6_CSUM) | |
147 | ||
148 | #define NETIF_F_ALL_TSO (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN) | |
149 | ||
150 | #define NETIF_F_ALL_FCOE (NETIF_F_FCOE_CRC | NETIF_F_FCOE_MTU | \ | |
151 | NETIF_F_FSO) | |
152 | ||
153 | /* | |
154 | * If one device supports one of these features, then enable them | |
155 | * for all in netdev_increment_features. | |
156 | */ | |
157 | #define NETIF_F_ONE_FOR_ALL (NETIF_F_GSO_SOFTWARE | NETIF_F_GSO_ROBUST | \ | |
158 | NETIF_F_SG | NETIF_F_HIGHDMA | \ | |
159 | NETIF_F_FRAGLIST | NETIF_F_VLAN_CHALLENGED) | |
160 | /* | |
161 | * If one device doesn't support one of these features, then disable it | |
162 | * for all in netdev_increment_features. | |
163 | */ | |
164 | #define NETIF_F_ALL_FOR_ALL (NETIF_F_NOCACHE_COPY | NETIF_F_FSO) | |
165 | ||
166 | /* changeable features with no special hardware requirements */ | |
167 | #define NETIF_F_SOFT_FEATURES (NETIF_F_GSO | NETIF_F_GRO) | |
168 | ||
2adb956b VY |
169 | #define NETIF_F_VLAN_FEATURES (NETIF_F_HW_VLAN_CTAG_FILTER | \ |
170 | NETIF_F_HW_VLAN_CTAG_RX | \ | |
171 | NETIF_F_HW_VLAN_CTAG_TX | \ | |
172 | NETIF_F_HW_VLAN_STAG_FILTER | \ | |
173 | NETIF_F_HW_VLAN_STAG_RX | \ | |
174 | NETIF_F_HW_VLAN_STAG_TX) | |
175 | ||
a59e2ecb | 176 | #endif /* _LINUX_NETDEV_FEATURES_H */ |