diff options
| author | Hangbin Liu <liuhangbin@gmail.com> | 2025-10-17 03:41:52 +0000 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2026-03-04 07:20:50 -0500 |
| commit | 26924d2fdec2c7243d9143734c576d7956bd15b5 (patch) | |
| tree | 7c89fd8ac31d691d2150828d3cecf1ed5570e2be /include/linux/netdev_features.h | |
| parent | fa3c2f8d9152344a478abb847081c1b5f84a94f5 (diff) | |
net: add a common function to compute features for upper devices
[ Upstream commit 28098defc79fe7d29e6bfe4eb6312991f6bdc3d3 ]
Some high level software drivers need to compute features from lower
devices. But each has their own implementations and may lost some
feature compute. Let's use one common function to compute features
for kinds of these devices.
The new helper uses the current bond implementation as the reference
one, as the latter already handles all the relevant aspects: netdev
features, TSO limits and dst retention.
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://patch.msgid.link/20251017034155.61990-2-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: bb4c698633c0 ("team: avoid NETDEV_CHANGEMTU event when unregistering slave")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux/netdev_features.h')
| -rw-r--r-- | include/linux/netdev_features.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h index 7a01c518e573..93e4da7046a1 100644 --- a/include/linux/netdev_features.h +++ b/include/linux/netdev_features.h @@ -255,6 +255,24 @@ static inline int find_next_netdev_feature(u64 feature, unsigned long start) NETIF_F_GSO_UDP_TUNNEL | \ NETIF_F_GSO_UDP_TUNNEL_CSUM) +/* virtual device features */ +#define MASTER_UPPER_DEV_VLAN_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \ + NETIF_F_FRAGLIST | NETIF_F_GSO_SOFTWARE | \ + NETIF_F_GSO_ENCAP_ALL | \ + NETIF_F_HIGHDMA | NETIF_F_LRO) + +#define MASTER_UPPER_DEV_ENC_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \ + NETIF_F_RXCSUM | NETIF_F_GSO_SOFTWARE | \ + NETIF_F_GSO_PARTIAL) + +#define MASTER_UPPER_DEV_MPLS_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \ + NETIF_F_GSO_SOFTWARE) + +#define MASTER_UPPER_DEV_XFRM_FEATURES (NETIF_F_HW_ESP | NETIF_F_HW_ESP_TX_CSUM | \ + NETIF_F_GSO_ESP) + +#define MASTER_UPPER_DEV_GSO_PARTIAL_FEATURES (NETIF_F_GSO_ESP) + static inline netdev_features_t netdev_base_features(netdev_features_t features) { features &= ~NETIF_F_ONE_FOR_ALL; |