diff options
| author | John Fastabend <john.fastabend@gmail.com> | 2017-07-17 09:29:40 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-17 09:48:06 -0700 |
| commit | 11393cc9b9be2a1f61559e6fb9c27bc8fa20b1ff (patch) | |
| tree | 9983db89954e9d34d04d16fa023e5df752efd90d /include/linux/bpf.h | |
| parent | 97f91a7cf04ff605845c20948b8a80e54cbd3376 (diff) | |
xdp: Add batching support to redirect map
For performance reasons we want to avoid updating the tail pointer in
the driver tx ring as much as possible. To accomplish this we add
batching support to the redirect path in XDP.
This adds another ndo op "xdp_flush" that is used to inform the driver
that it should bump the tail pointer on the TX ring.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/bpf.h')
| -rw-r--r-- | include/linux/bpf.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h index d0d3281ac678..6850a760dc94 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -381,5 +381,7 @@ u64 bpf_user_rnd_u32(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5); /* Map specifics */ struct net_device *__dev_map_lookup_elem(struct bpf_map *map, u32 key); +void __dev_map_insert_ctx(struct bpf_map *map, u32 index); +void __dev_map_flush(struct bpf_map *map); #endif /* _LINUX_BPF_H */ |