From 19e9bfa044f32655f1c14e95784be93da34e103e Mon Sep 17 00:00:00 2001 From: Vlad Buslov Date: Fri, 2 Apr 2021 15:57:02 +0300 Subject: net/mlx5: Bridge, add offload infrastructure Create new files bridge.{c|h} in en/rep directory that implement bridge interaction with representor netdevices and handle required events/notifications, bridge.{c|h} in esw directory that implement all necessary eswitch offloading infrastructure and works on vport/eswitch level. Provide new kconfig MLX5_BRIDGE which is automatically selected when both kernel bridge and mlx5 eswitch configs are enabled. Provide basic infrastructure for bridge offloads: - struct mlx5_esw_bridge_offloads - per-eswitch bridge offload structure that encapsulates generic bridge-offloads data (notifier blocks, ingress flow table/group, etc.) that is created/deleted on enable/disable eswitch offloads. - struct mlx5_esw_bridge - per-bridge structure that encapsulates per-bridge data (reference counter, FDB, egress flow table/group, etc.) that is created when first eswitch represetor is attached to new bridge and deleted when last representor is removed from the bridge as a result of NETDEV_CHANGEUPPER event. The bridge tables are created with new priority FDB_BR_OFFLOAD in FDB namespace. The new priority is between tc-miss and slow path priorities. Priority consist of two levels: the ingress table that is global per eswitch and matches incoming packets by src_mac/vid and redirects them to next level (egress table) that is chosen according to ingress port bridge membership and matches on dst_mac/vid in order to redirect packet to vport according to the following diagram: + | +---------v----------+ | | | FDB_TC_OFFLOAD | | | +---------+----------+ | | +---------v----------+ | | | FDB_FT_OFFLOAD | | | +---------+----------+ | | +---------v----------+ | | | FDB_TC_MISS | | | +---------+----------+ | +--------------------------------------+ | | | | +------+ | | | | | +------v--------+ FDB_BR_OFFLOAD | | | INGRESS_TABLE | | | +------+---+----+ | | | | match | | | +---------+ | | | | | +-------+ | | +-------v-------+ match | | | | | | EGRESS_TABLE +------------> vport | | | +-------+-------+ | | | | | | | +-------+ | | miss | | | +------+------+ | | | | +--------------------------------------+ | | +---------v----------+ | | | FDB_SLOW_PATH | | | +---------+----------+ | v Signed-off-by: Vlad Buslov Reviewed-by: Jianbo Liu Signed-off-by: Saeed Mahameed --- include/linux/mlx5/fs.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/mlx5/fs.h b/include/linux/mlx5/fs.h index 271f2f4d6b60..77746f7e35b8 100644 --- a/include/linux/mlx5/fs.h +++ b/include/linux/mlx5/fs.h @@ -88,6 +88,7 @@ enum { FDB_TC_OFFLOAD, FDB_FT_OFFLOAD, FDB_TC_MISS, + FDB_BR_OFFLOAD, FDB_SLOW_PATH, FDB_PER_VPORT, }; -- cgit v1.2.3