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authorJianbo Liu <jianbol@nvidia.com>2025-03-19 16:03:03 +0200
committerJakub Kicinski <kuba@kernel.org>2025-03-25 07:29:47 -0700
commit56617e11bd6a5e968351f0788a1b9b29de8afbec (patch)
treee96dee937f0275002779cf21c2d3e63685681de1
parentnet/mlx5e: CT: Filter legacy rules that are unrelated to nic (diff)
downloadwireguard-linux-56617e11bd6a5e968351f0788a1b9b29de8afbec.tar.xz
wireguard-linux-56617e11bd6a5e968351f0788a1b9b29de8afbec.zip
net/mlx5e: TC, Don't offload CT commit if it's the last action
For CT action with commit argument, it's usually followed by the forward action, either to the output netdev or next chain. The default behavior for software is to drop by setting action attribute to TC_ACT_SHOT instead of TC_ACT_PIPE if it's the last action. But driver can't handle it, so block the offload for such case. Signed-off-by: Jianbo Liu <jianbol@nvidia.com> Reviewed-by: Roi Dayan <roid@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/1742392983-153050-6-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/ct.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/ct.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/ct.c
index feeb41693c17..b6cabe829f19 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/ct.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/ct.c
@@ -5,6 +5,16 @@
#include "en/tc_priv.h"
#include "en/tc_ct.h"
+static bool
+tc_act_can_offload_ct(struct mlx5e_tc_act_parse_state *parse_state,
+ const struct flow_action_entry *act,
+ int act_index,
+ struct mlx5_flow_attr *attr)
+{
+ return !((act->ct.action & TCA_CT_ACT_COMMIT) &&
+ flow_action_is_last_entry(parse_state->flow_action, act));
+}
+
static int
tc_act_parse_ct(struct mlx5e_tc_act_parse_state *parse_state,
const struct flow_action_entry *act,
@@ -56,6 +66,7 @@ tc_act_is_missable_ct(const struct flow_action_entry *act)
}
struct mlx5e_tc_act mlx5e_tc_act_ct = {
+ .can_offload = tc_act_can_offload_ct,
.parse_action = tc_act_parse_ct,
.post_parse = tc_act_post_parse_ct,
.is_multi_table_act = tc_act_is_multi_table_act_ct,