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mlxsw: spectrum_matchall: Restrict sample action to be allowed only on ingress

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HW supports packet sampling on ingress only. Check and fail if user
is adding sample on egress.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jiri Pirko 2020-05-09 23:06:02 +03:00 committed by Jakub Kicinski
parent 72ef908bb3
commit 18aa23b31f
1 changed files with 5 additions and 0 deletions
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5
drivers/net/ethernet/mellanox/mlxsw/spectrum_matchall.c
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@ -212,6 +212,11 @@ int mlxsw_sp_mall_replace(struct mlxsw_sp_flow_block *block,
mall_entry->mirror.to_dev = act->dev;
} else if (act->id == FLOW_ACTION_SAMPLE &&
protocol == htons(ETH_P_ALL)) {
if (!mall_entry->ingress) {
NL_SET_ERR_MSG(f->common.extack, "Sample is not supported on egress");
err = -EOPNOTSUPP;
goto errout;
}
if (act->sample.rate > MLXSW_REG_MPSC_RATE_MAX) {
NL_SET_ERR_MSG(f->common.extack, "Sample rate not supported");
err = -EOPNOTSUPP;