net/mlx5e: Properly enforce disallowing of partial field re-write offload
authorOr Gerlitz <ogerlitz@mellanox.com>
Tue, 9 May 2017 16:02:42 +0000 (19:02 +0300)
committerSaeed Mahameed <saeedm@mellanox.com>
Tue, 23 May 2017 13:23:31 +0000 (16:23 +0300)
commitd824bf3fe2d352fc2c52b7ede05b1a0e95d946be
treeb5b2e82f1cb8776f6fb49f167990ef763789af93
parent26c02749936f064abf771a0f5f49b280fcfd8b66
net/mlx5e: Properly enforce disallowing of partial field re-write offload

Currently we don't support partial header re-writes through TC pedit
action offloading. However, the code that enforces that wasn't err-ing
on cases where the first and last bits of the mask are set but there is
some zero bit between them, such as in the below example, fix that!

tc filter add dev enp1s0 protocol ip parent ffff: prio 10 flower
ip_proto udp dst_port 2001 skip_sw
action pedit munge ip src set 1.0.0.1 retain 0xff0000ff

Fixes: d79b6df6b10a ('net/mlx5e: Add parsing of TC pedit actions to HW format')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c