This is a note to let you know that I've just added the patch titled
net/mlx5: DR, Can't go to uplink vport on RX rule
to the 6.6-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-dr-can-t-go-to-uplink-vport-on-rx-rule.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 3f533d9b6010bac88a223b8ebc3d9db43dec4cf5
Author: Yevgeny Kliteynik <kliteyn@xxxxxxxxxx>
Date: Sun Dec 17 13:20:36 2023 +0200
net/mlx5: DR, Can't go to uplink vport on RX rule
[ Upstream commit 5b2a2523eeea5f03d39a9d1ff1bad2e9f8eb98d2 ]
Go-To-Vport action on RX is not allowed when the vport is uplink.
In such case, the packet should be dropped.
Fixes: 9db810ed2d37 ("net/mlx5: DR, Expose steering action functionality")
Signed-off-by: Yevgeny Kliteynik <kliteyn@xxxxxxxxxx>
Reviewed-by: Erez Shitrit <erezsh@xxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_action.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_action.c
index 1a5aee8a7f13..90c38cbbde18 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_action.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_action.c
@@ -867,11 +867,17 @@ int mlx5dr_actions_build_ste_arr(struct mlx5dr_matcher *matcher,
action->sampler->tx_icm_addr;
break;
case DR_ACTION_TYP_VPORT:
- attr.hit_gvmi = action->vport->caps->vhca_gvmi;
- dest_action = action;
- attr.final_icm_addr = rx_rule ?
- action->vport->caps->icm_address_rx :
- action->vport->caps->icm_address_tx;
+ if (unlikely(rx_rule && action->vport->caps->num == MLX5_VPORT_UPLINK)) {
+ /* can't go to uplink on RX rule - dropping instead */
+ attr.final_icm_addr = nic_dmn->drop_icm_addr;
+ attr.hit_gvmi = nic_dmn->drop_icm_addr >> 48;
+ } else {
+ attr.hit_gvmi = action->vport->caps->vhca_gvmi;
+ dest_action = action;
+ attr.final_icm_addr = rx_rule ?
+ action->vport->caps->icm_address_rx :
+ action->vport->caps->icm_address_tx;
+ }
break;
case DR_ACTION_TYP_POP_VLAN:
if (!rx_rule && !(dmn->ste_ctx->actions_caps &
