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Michał Mirosława59e2ec2011-11-15 15:29:55 +00001/*
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
Michał Mirosławc8f44af2011-11-15 15:29:55 +000013#include <linux/types.h>
14
Michał Mirosława861a8b2011-11-15 15:29:55 +000015typedef u64 netdev_features_t;
Michał Mirosławc8f44af2011-11-15 15:29:55 +000016
Michał Mirosława19f2a62011-11-15 15:29:55 +000017enum {
18 NETIF_F_SG_BIT, /* Scatter/gather IO. */
19 NETIF_F_IP_CSUM_BIT, /* Can checksum TCP/UDP over IPv4. */
Michał Mirosław34324dc2011-11-15 15:29:55 +000020 __UNUSED_NETIF_F_1,
Michał Mirosława19f2a62011-11-15 15:29:55 +000021 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. */
Patrick McHardyf6469682013-04-19 02:04:27 +000025 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 */
Michał Mirosława19f2a62011-11-15 15:29:55 +000028 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 */
Michał Mirosława59e2ec2011-11-15 15:29:55 +000031 /* do not use LLTX in new drivers */
Michał Mirosława19f2a62011-11-15 15:29:55 +000032 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 */
Michał Mirosława59e2ec2011-11-15 15:29:55 +000035
Michał Mirosława19f2a62011-11-15 15:29:55 +000036 /**/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 */
Pravin B Shelar68c33162013-02-14 14:02:41 +000044 NETIF_F_GSO_GRE_BIT, /* ... GRE with TSO */
Tom Herbert4749c092014-06-04 17:20:23 -070045 NETIF_F_GSO_GRE_CSUM_BIT, /* ... GRE with csum with TSO */
Eric Dumazetcb32f512013-10-19 11:42:57 -070046 NETIF_F_GSO_IPIP_BIT, /* ... IPIP tunnel with TSO */
Eric Dumazet61c1db72013-10-20 20:47:30 -070047 NETIF_F_GSO_SIT_BIT, /* ... SIT tunnel with TSO */
Pravin B Shelar73136262013-03-07 13:21:51 +000048 NETIF_F_GSO_UDP_TUNNEL_BIT, /* ... UDP TUNNEL with TSO */
Tom Herbert0f4f4ff2014-06-04 17:20:16 -070049 NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT,/* ... UDP TUNNEL with TSO & CSUM */
Tom Herberte585f232014-11-04 09:06:54 -080050 NETIF_F_GSO_TUNNEL_REMCSUM_BIT, /* ... TUNNEL with TSO & REMCSUM */
Pravin B Shelar73136262013-03-07 13:21:51 +000051 /**/NETIF_F_GSO_LAST = /* last bit, see GSO_MASK */
Tom Herberte585f232014-11-04 09:06:54 -080052 NETIF_F_GSO_TUNNEL_REMCSUM_BIT,
Michał Mirosława59e2ec2011-11-15 15:29:55 +000053
Michał Mirosława19f2a62011-11-15 15:29:55 +000054 NETIF_F_FCOE_CRC_BIT, /* FCoE CRC32 */
Tom Herbert53692b12015-12-14 11:19:41 -080055 NETIF_F_SCTP_CRC_BIT, /* SCTP checksum offload */
Michał Mirosława19f2a62011-11-15 15:29:55 +000056 NETIF_F_FCOE_MTU_BIT, /* Supports max FCoE MTU, 2158 bytes*/
57 NETIF_F_NTUPLE_BIT, /* N-tuple filters supported */
58 NETIF_F_RXHASH_BIT, /* Receive hashing offload */
59 NETIF_F_RXCSUM_BIT, /* Receive checksumming offload */
60 NETIF_F_NOCACHE_COPY_BIT, /* Use no-cache copyfromuser */
61 NETIF_F_LOOPBACK_BIT, /* Enable loopback */
Ben Greear36eabda32012-02-11 15:39:14 +000062 NETIF_F_RXFCS_BIT, /* Append FCS to skb pkt data */
Ben Greear5e0c03c2012-02-11 15:39:45 +000063 NETIF_F_RXALL_BIT, /* Receive errored frames too */
David Miller4ada8db2013-05-02 04:31:32 -040064 NETIF_F_HW_VLAN_STAG_TX_BIT, /* Transmit VLAN STAG HW acceleration */
65 NETIF_F_HW_VLAN_STAG_RX_BIT, /* Receive VLAN STAG HW acceleration */
66 NETIF_F_HW_VLAN_STAG_FILTER_BIT,/* Receive filtering on VLAN STAGs */
John Fastabenda6cc0cf2013-11-06 09:54:46 -080067 NETIF_F_HW_L2FW_DOFFLOAD_BIT, /* Allow L2 Forwarding in Hardware */
Jiri Pirkod0290212014-04-02 23:09:31 +020068 NETIF_F_BUSY_POLL_BIT, /* Busy poll */
Michał Mirosława19f2a62011-11-15 15:29:55 +000069
70 /*
71 * Add your fresh new feature above and remember to update
72 * netdev_features_strings[] in net/core/ethtool.c and maybe
73 * some feature mask #defines below. Please also describe it
74 * in Documentation/networking/netdev-features.txt.
75 */
76
77 /**/NETDEV_FEATURE_COUNT
78};
79
80/* copy'n'paste compression ;) */
81#define __NETIF_F_BIT(bit) ((netdev_features_t)1 << (bit))
82#define __NETIF_F(name) __NETIF_F_BIT(NETIF_F_##name##_BIT)
83
84#define NETIF_F_FCOE_CRC __NETIF_F(FCOE_CRC)
85#define NETIF_F_FCOE_MTU __NETIF_F(FCOE_MTU)
86#define NETIF_F_FRAGLIST __NETIF_F(FRAGLIST)
87#define NETIF_F_FSO __NETIF_F(FSO)
88#define NETIF_F_GRO __NETIF_F(GRO)
89#define NETIF_F_GSO __NETIF_F(GSO)
90#define NETIF_F_GSO_ROBUST __NETIF_F(GSO_ROBUST)
91#define NETIF_F_HIGHDMA __NETIF_F(HIGHDMA)
92#define NETIF_F_HW_CSUM __NETIF_F(HW_CSUM)
Patrick McHardyf6469682013-04-19 02:04:27 +000093#define NETIF_F_HW_VLAN_CTAG_FILTER __NETIF_F(HW_VLAN_CTAG_FILTER)
94#define NETIF_F_HW_VLAN_CTAG_RX __NETIF_F(HW_VLAN_CTAG_RX)
95#define NETIF_F_HW_VLAN_CTAG_TX __NETIF_F(HW_VLAN_CTAG_TX)
Michał Mirosława19f2a62011-11-15 15:29:55 +000096#define NETIF_F_IP_CSUM __NETIF_F(IP_CSUM)
97#define NETIF_F_IPV6_CSUM __NETIF_F(IPV6_CSUM)
98#define NETIF_F_LLTX __NETIF_F(LLTX)
99#define NETIF_F_LOOPBACK __NETIF_F(LOOPBACK)
100#define NETIF_F_LRO __NETIF_F(LRO)
101#define NETIF_F_NETNS_LOCAL __NETIF_F(NETNS_LOCAL)
102#define NETIF_F_NOCACHE_COPY __NETIF_F(NOCACHE_COPY)
Michał Mirosława19f2a62011-11-15 15:29:55 +0000103#define NETIF_F_NTUPLE __NETIF_F(NTUPLE)
104#define NETIF_F_RXCSUM __NETIF_F(RXCSUM)
105#define NETIF_F_RXHASH __NETIF_F(RXHASH)
Tom Herbert53692b12015-12-14 11:19:41 -0800106#define NETIF_F_SCTP_CRC __NETIF_F(SCTP_CRC)
Michał Mirosława19f2a62011-11-15 15:29:55 +0000107#define NETIF_F_SG __NETIF_F(SG)
108#define NETIF_F_TSO6 __NETIF_F(TSO6)
109#define NETIF_F_TSO_ECN __NETIF_F(TSO_ECN)
110#define NETIF_F_TSO __NETIF_F(TSO)
111#define NETIF_F_UFO __NETIF_F(UFO)
112#define NETIF_F_VLAN_CHALLENGED __NETIF_F(VLAN_CHALLENGED)
Ben Greear36eabda32012-02-11 15:39:14 +0000113#define NETIF_F_RXFCS __NETIF_F(RXFCS)
Ben Greear5e0c03c2012-02-11 15:39:45 +0000114#define NETIF_F_RXALL __NETIF_F(RXALL)
Cong Wanga362db32013-03-16 04:47:55 +0000115#define NETIF_F_GSO_GRE __NETIF_F(GSO_GRE)
Tom Herbert4749c092014-06-04 17:20:23 -0700116#define NETIF_F_GSO_GRE_CSUM __NETIF_F(GSO_GRE_CSUM)
Eric Dumazetcb32f512013-10-19 11:42:57 -0700117#define NETIF_F_GSO_IPIP __NETIF_F(GSO_IPIP)
Eric Dumazet61c1db72013-10-20 20:47:30 -0700118#define NETIF_F_GSO_SIT __NETIF_F(GSO_SIT)
Cong Wanga362db32013-03-16 04:47:55 +0000119#define NETIF_F_GSO_UDP_TUNNEL __NETIF_F(GSO_UDP_TUNNEL)
Tom Herbert4b282522014-06-14 23:23:52 -0700120#define NETIF_F_GSO_UDP_TUNNEL_CSUM __NETIF_F(GSO_UDP_TUNNEL_CSUM)
Tom Herberte585f232014-11-04 09:06:54 -0800121#define NETIF_F_GSO_TUNNEL_REMCSUM __NETIF_F(GSO_TUNNEL_REMCSUM)
David Miller4ada8db2013-05-02 04:31:32 -0400122#define NETIF_F_HW_VLAN_STAG_FILTER __NETIF_F(HW_VLAN_STAG_FILTER)
123#define NETIF_F_HW_VLAN_STAG_RX __NETIF_F(HW_VLAN_STAG_RX)
124#define NETIF_F_HW_VLAN_STAG_TX __NETIF_F(HW_VLAN_STAG_TX)
John Fastabenda6cc0cf2013-11-06 09:54:46 -0800125#define NETIF_F_HW_L2FW_DOFFLOAD __NETIF_F(HW_L2FW_DOFFLOAD)
Jiri Pirkod0290212014-04-02 23:09:31 +0200126#define NETIF_F_BUSY_POLL __NETIF_F(BUSY_POLL)
Michał Mirosława59e2ec2011-11-15 15:29:55 +0000127
Jarod Wilson5ba3f7d2015-11-03 10:15:59 -0500128#define for_each_netdev_feature(mask_addr, bit) \
129 for_each_set_bit(bit, (unsigned long *)mask_addr, NETDEV_FEATURE_COUNT)
Jarod Wilsonfd867d52015-11-02 21:55:59 -0500130
Michał Mirosława59e2ec2011-11-15 15:29:55 +0000131/* Features valid for ethtool to change */
132/* = all defined minus driver/device-class-related */
133#define NETIF_F_NEVER_CHANGE (NETIF_F_VLAN_CHALLENGED | \
134 NETIF_F_LLTX | NETIF_F_NETNS_LOCAL)
Michał Mirosława19f2a62011-11-15 15:29:55 +0000135
136/* remember that ((t)1 << t_BITS) is undefined in C99 */
137#define NETIF_F_ETHTOOL_BITS ((__NETIF_F_BIT(NETDEV_FEATURE_COUNT - 1) | \
138 (__NETIF_F_BIT(NETDEV_FEATURE_COUNT - 1) - 1)) & \
139 ~NETIF_F_NEVER_CHANGE)
140
141/* Segmentation offload feature mask */
142#define NETIF_F_GSO_MASK (__NETIF_F_BIT(NETIF_F_GSO_LAST + 1) - \
143 __NETIF_F_BIT(NETIF_F_GSO_SHIFT))
Michał Mirosława59e2ec2011-11-15 15:29:55 +0000144
145/* List of features with software fallbacks. */
146#define NETIF_F_GSO_SOFTWARE (NETIF_F_TSO | NETIF_F_TSO_ECN | \
147 NETIF_F_TSO6 | NETIF_F_UFO)
148
Tom Herbertc8cd0982015-12-14 11:19:44 -0800149/* List of IP checksum features. Note that NETIF_F_ HW_CSUM should not be
Tom Herberta1882222015-12-14 11:19:43 -0800150 * set in features when NETIF_F_IP_CSUM or NETIF_F_IPV6_CSUM are set--
151 * this would be contradictory
152 */
Tom Herbertc8cd0982015-12-14 11:19:44 -0800153#define NETIF_F_CSUM_MASK (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
154 NETIF_F_HW_CSUM)
Michał Mirosława59e2ec2011-11-15 15:29:55 +0000155
156#define NETIF_F_ALL_TSO (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN)
157
158#define NETIF_F_ALL_FCOE (NETIF_F_FCOE_CRC | NETIF_F_FCOE_MTU | \
159 NETIF_F_FSO)
160
161/*
162 * If one device supports one of these features, then enable them
163 * for all in netdev_increment_features.
164 */
165#define NETIF_F_ONE_FOR_ALL (NETIF_F_GSO_SOFTWARE | NETIF_F_GSO_ROBUST | \
166 NETIF_F_SG | NETIF_F_HIGHDMA | \
Scott Feldman7889cbe2015-05-10 09:48:07 -0700167 NETIF_F_FRAGLIST | NETIF_F_VLAN_CHALLENGED)
Roopa Prabhuaafb3e92015-01-29 22:40:11 -0800168
Michał Mirosława59e2ec2011-11-15 15:29:55 +0000169/*
170 * If one device doesn't support one of these features, then disable it
171 * for all in netdev_increment_features.
172 */
173#define NETIF_F_ALL_FOR_ALL (NETIF_F_NOCACHE_COPY | NETIF_F_FSO)
174
Jarod Wilsonfd867d52015-11-02 21:55:59 -0500175/*
176 * If upper/master device has these features disabled, they must be disabled
177 * on all lower/slave devices as well.
178 */
179#define NETIF_F_UPPER_DISABLES NETIF_F_LRO
180
Michał Mirosława59e2ec2011-11-15 15:29:55 +0000181/* changeable features with no special hardware requirements */
182#define NETIF_F_SOFT_FEATURES (NETIF_F_GSO | NETIF_F_GRO)
183
Vlad Yasevich2adb9562014-03-27 22:14:49 -0400184#define NETIF_F_VLAN_FEATURES (NETIF_F_HW_VLAN_CTAG_FILTER | \
185 NETIF_F_HW_VLAN_CTAG_RX | \
186 NETIF_F_HW_VLAN_CTAG_TX | \
187 NETIF_F_HW_VLAN_STAG_FILTER | \
188 NETIF_F_HW_VLAN_STAG_RX | \
189 NETIF_F_HW_VLAN_STAG_TX)
190
Pravin B Shelarf6eec612014-07-17 15:14:15 -0700191#define NETIF_F_GSO_ENCAP_ALL (NETIF_F_GSO_GRE | \
192 NETIF_F_GSO_GRE_CSUM | \
193 NETIF_F_GSO_IPIP | \
194 NETIF_F_GSO_SIT | \
195 NETIF_F_GSO_UDP_TUNNEL | \
Pravin B Shelar59b93b42014-11-05 15:27:48 -0800196 NETIF_F_GSO_UDP_TUNNEL_CSUM)
Pravin B Shelarf6eec612014-07-17 15:14:15 -0700197
Michał Mirosława59e2ec2011-11-15 15:29:55 +0000198#endif /* _LINUX_NETDEV_FEATURES_H */