net/mlx5e: Err if asked to offload TC match on frag being first

net/mlx5e: Err if asked to offload TC match on frag being first

BugLink: http://bugs.launchpad.net/bugs/1780858
[ Upstream commit f85900c3e13fdb61f040c9feecbcda601e0cdcfb ]

The HW doesn't support matching on frag first/later, return error if we are
asked to offload that.

Fixes: 3f7d0eb42d59 ("net/mlx5e: Offload TC matching on packets being IP fragments")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>