net/mlx4: expose support for flow rule priorities

[dpdk.git] / drivers / net / mlx4 / mlx4_flow.c

diff --git a/drivers/net/mlx4/mlx4_flow.c b/drivers/net/mlx4/mlx4_flow.c
index 018843b..730249b 100644 (file)
--- a/drivers/net/mlx4/mlx4_flow.c
+++ b/drivers/net/mlx4/mlx4_flow.c
@@ -597,8 +597,8 @@ mlx4_flow_prepare(struct priv *priv,
                .queue = 0,
                .drop = 0,
        };
+       uint32_t priority_override = 0;
 
-       (void)priv;
        if (attr->group) {
                rte_flow_error_set(error, ENOTSUP,
                                   RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
@@ -606,11 +606,22 @@ mlx4_flow_prepare(struct priv *priv,
                                   "groups are not supported");
                return -rte_errno;
        }
-       if (attr->priority) {
+       if (priv->isolated) {
+               priority_override = attr->priority;
+       } else if (attr->priority) {
                rte_flow_error_set(error, ENOTSUP,
                                   RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
                                   NULL,
-                                  "priorities are not supported");
+                                  "priorities are not supported outside"
+                                  " isolated mode");
+               return -rte_errno;
+       }
+       if (attr->priority > MLX4_FLOW_PRIORITY_LAST) {
+               rte_flow_error_set(error, ENOTSUP,
+                                  RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
+                                  NULL,
+                                  "maximum priority level is "
+                                  MLX4_STR_EXPAND(MLX4_FLOW_PRIORITY_LAST));
                return -rte_errno;
        }
        if (attr->egress) {
@@ -680,6 +691,9 @@ mlx4_flow_prepare(struct priv *priv,
                }
                flow->offset += cur_item->dst_sz;
        }
+       /* Use specified priority level when in isolated mode. */
+       if (priv->isolated && flow->ibv_attr)
+               flow->ibv_attr->priority = priority_override;
        /* Go over actions list */
        for (; actions->type != RTE_FLOW_ACTION_TYPE_END; ++actions) {
                if (actions->type == RTE_FLOW_ACTION_TYPE_VOID) {