common/cnxk: fix flow deletion

[ upstream commit 40257b8 ]

When a flow is deleted, the counters are deleted without
being cleared first. This results in counter values being
retained and shown in flows created later. Hence, counter
is cleared before being deleted.

Updated driver to clear and delete counters upon flow deletion.

Fixes: a07f7ce ("common/cnxk: add NPC init and fini")

Signed-off-by: Satheesh Paul <psatheesh@marvell.com>
Reviewed-by: Jerin Jacob <jerinj@marvell.com>

drivers/common/cnxk/roc_npc.c

@@ -1246,6 +1246,16 @@ roc_npc_flow_destroy(struct roc_npc *roc_npc, struct roc_npc_flow *flow)
 			return rc;
 	}
 
+	if (flow->ctr_id != NPC_COUNTER_NONE) {
+		rc = roc_npc_mcam_clear_counter(roc_npc, flow->ctr_id);
+		if (rc != 0)
+			return rc;
+
+		rc = npc_mcam_free_counter(npc, flow->ctr_id);
+		if (rc != 0)
+			return rc;
+	}
+
 	rc = npc_mcam_free_entry(npc, flow->mcam_id);
 	if (rc != 0)
 		return rc;