This is a note to let you know that I've just added the patch titled
net/mlx5: E-switch, Don't destroy indirect table in split rule
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-mlx5-e-switch-don-t-destroy-indirect-table-in-sp.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 54d2a6e427d1ce0433c3004ba5e8fe79149ceb70
Author: Chris Mi <cmi@xxxxxxxxxx>
Date: Fri Mar 10 09:56:08 2023 +0200
net/mlx5: E-switch, Don't destroy indirect table in split rule
[ Upstream commit 4c8189302567f75099a336b0efcff8291ec86ff4 ]
Source port rewrite (forward to ovs internal port or statck device) isn't
supported in the rule of split action. So there is no indirect table in
split rule. The cited commit destroyes indirect table in split rule. The
indirect table for other rules will be destroyed wrongly. It will cause
traffic loss.
Fix it by removing the destroy function in split rule. And also remove
the destroy function in error flow.
Fixes: 10742efc20a4 ("net/mlx5e: VF tunnel TX traffic offloading")
Signed-off-by: Chris Mi <cmi@xxxxxxxxxx>
Reviewed-by: Roi Dayan <roid@xxxxxxxxxx>
Reviewed-by: Maor Dickman <maord@xxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 002567792e91e..829f703233a9e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -656,7 +656,6 @@ mlx5_eswitch_add_fwd_rule(struct mlx5_eswitch *esw,
return rule;
err_chain_src_rewrite:
- esw_put_dest_tables_loop(esw, attr, 0, i);
mlx5_esw_vporttbl_put(esw, &fwd_attr);
err_get_fwd:
mlx5_chains_put_table(chains, attr->chain, attr->prio, 0);
@@ -698,7 +697,6 @@ __mlx5_eswitch_del_rule(struct mlx5_eswitch *esw,
if (fwd_rule) {
mlx5_esw_vporttbl_put(esw, &fwd_attr);
mlx5_chains_put_table(chains, attr->chain, attr->prio, 0);
- esw_put_dest_tables_loop(esw, attr, 0, esw_attr->split_count);
} else {
if (split)
mlx5_esw_vporttbl_put(esw, &fwd_attr);
