[dpdk-dev] [PATCH] net/cnxk: fix incorrect queue index validation

[psatheesh at marvell.com]

From: Satheesh Paul <psatheesh at marvell.com>

When creating a flow rule directing traffic from PF
to VF, current validation is incorrectly checking the
RQ index in flow action with the PF's maximum
configured RQs. This validation is applicable only
when action target is an RQ of the PF. The validation
has been modified accordingly.

Fixes: 8c009b4505e ("net/cnxk: support flow API")
Cc: stable at dpdk.org

Signed-off-by: Satheesh Paul <psatheesh at marvell.com>
Reviewed-by: Kiran Kumar K <kirankumark at marvell.com>
---
 drivers/net/cnxk/cnxk_flow.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/net/cnxk/cnxk_flow.c b/drivers/net/cnxk/cnxk_flow.c
index 1b88542dcb..3b8348ae9c 100644
--- a/drivers/net/cnxk/cnxk_flow.c
+++ b/drivers/net/cnxk/cnxk_flow.c
@@ -117,13 +117,14 @@ cnxk_map_actions(struct rte_eth_dev *eth_dev, const struct rte_flow_attr *attr,
 		 uint32_t *flowkey_cfg, uint16_t *dst_pf_func)
 {
 	struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
+	const struct rte_flow_action_queue *act_q = NULL;
 	const struct rte_flow_action_ethdev *act_ethdev;
 	const struct rte_flow_action_port_id *port_act;
-	const struct rte_flow_action_queue *act_q;
 	struct rte_eth_dev *portid_eth_dev;
 	char if_name[RTE_ETH_NAME_MAX_LEN];
 	struct cnxk_eth_dev *hw_dst;
 	struct roc_npc *roc_npc_dst;
+	bool is_vf_action = false;
 	int i = 0, rc = 0;
 	int rq;
 
@@ -157,6 +158,7 @@ cnxk_map_actions(struct rte_eth_dev *eth_dev, const struct rte_flow_attr *attr,
 		case RTE_FLOW_ACTION_TYPE_VF:
 			in_actions[i].type = ROC_NPC_ACTION_TYPE_VF;
 			in_actions[i].conf = actions->conf;
+			is_vf_action = true;
 			break;
 
 		case RTE_FLOW_ACTION_TYPE_REPRESENTED_PORT:
@@ -189,13 +191,7 @@ cnxk_map_actions(struct rte_eth_dev *eth_dev, const struct rte_flow_attr *attr,
 			break;
 
 		case RTE_FLOW_ACTION_TYPE_QUEUE:
-			act_q = (const struct rte_flow_action_queue *)
-					actions->conf;
-			rq = act_q->index;
-			if (rq >= eth_dev->data->nb_rx_queues) {
-				plt_npc_dbg("Invalid queue index");
-				goto err_exit;
-			}
+			act_q = (const struct rte_flow_action_queue *)actions->conf;
 			in_actions[i].type = ROC_NPC_ACTION_TYPE_QUEUE;
 			in_actions[i].conf = actions->conf;
 			break;
@@ -241,6 +237,14 @@ cnxk_map_actions(struct rte_eth_dev *eth_dev, const struct rte_flow_attr *attr,
 		}
 		i++;
 	}
+
+	if (!is_vf_action && act_q) {
+		rq = act_q->index;
+		if (rq >= eth_dev->data->nb_rx_queues) {
+			plt_npc_dbg("Invalid queue index");
+			goto err_exit;
+		}
+	}
 	in_actions[i].type = ROC_NPC_ACTION_TYPE_END;
 	return 0;
 
-- 
2.39.2