Similar to bpf_xdp_ct_lookup routine, introduce br_fdb_find_port_from_ifindex unstable helper in order to accelerate linux bridge with XDP. br_fdb_find_port_from_ifindex will perform a lookup in the associated bridge fdb table and it will return the output ifindex if the destination address is associated to a bridge port or -ENODEV for BOM traffic or if lookup fails. Lorenzo Bianconi (2): net: bridge: add unstable br_fdb_find_port_from_ifindex helper samples: bpf: add xdp fdb lookup program net/bridge/br.c | 21 +++++ net/bridge/br_fdb.c | 67 +++++++++++++--- net/bridge/br_private.h | 12 +++ samples/bpf/Makefile | 9 ++- samples/bpf/xdp_fdb.bpf.c | 68 +++++++++++++++++ samples/bpf/xdp_fdb_user.c | 152 +++++++++++++++++++++++++++++++++++++ 6 files changed, 319 insertions(+), 10 deletions(-) create mode 100644 samples/bpf/xdp_fdb.bpf.c create mode 100644 samples/bpf/xdp_fdb_user.c -- 2.34.1
