[PATCH 15/30] net/mlx5/hws: check the rule status on rule update

[Gregory Etelson]

From: Itamar Gozlan <igozlan at nvidia.com>

Only allow rule updates for rules with their status value equal to
MLX5DR_RULE_STATUS_CREATED.
Otherwise, the rule may be in an unstable stage like deleting and
this will result in a faulty unexpected scenario.

Signed-off-by: Hamdan Igbaria <hamdani at nvidia.com>
Reviewed-by: Alex Vesker <valex at nvidia.com>
Acked-by: Matan Azrad <matan at nvidia.com>
---
 drivers/net/mlx5/hws/mlx5dr_rule.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/mlx5/hws/mlx5dr_rule.c b/drivers/net/mlx5/hws/mlx5dr_rule.c
index 980a99b226..70d5c19e1f 100644
--- a/drivers/net/mlx5/hws/mlx5dr_rule.c
+++ b/drivers/net/mlx5/hws/mlx5dr_rule.c
@@ -756,6 +756,12 @@ int mlx5dr_rule_action_update(struct mlx5dr_rule *rule_handle,
 	if (mlx5dr_rule_enqueue_precheck(matcher->tbl->ctx, attr))
 		return -rte_errno;
 
+	if (rule_handle->status != MLX5DR_RULE_STATUS_CREATED) {
+		DR_LOG(ERR, "Current rule status does not allow update");
+		rte_errno = EBUSY;
+		return -rte_errno;
+	}
+
 	ret = mlx5dr_rule_create_hws(rule_handle,
 				     attr,
 				     0,
-- 
2.39.2