tree 1fc015113abd682af506b436bb3788d1cc28a760
parent 9ecc2d86171adf23796133c89610987a14624875
author Brenden Blanco <bblanco@plumgrid.com> 1468955816 -0700
committer David S. Miller <davem@davemloft.net> 1468989993 -0700

bpf: enable direct packet data write for xdp progs

For forwarding to be effective, XDP programs should be allowed to
rewrite packet data.

This requires that the drivers supporting XDP must all map the packet
memory as TODEVICE or BIDIRECTIONAL before invoking the program.

Signed-off-by: Brenden Blanco <bblanco@plumgrid.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>