ring: fix return of new port id on creation

[dpdk.git] / drivers / net / ring / rte_eth_ring.h

diff --git a/drivers/net/ring/rte_eth_ring.h b/drivers/net/ring/rte_eth_ring.h
index d36489a..2262249 100644 (file)
--- a/drivers/net/ring/rte_eth_ring.h
+++ b/drivers/net/ring/rte_eth_ring.h
@@ -40,6 +40,24 @@ extern "C" {
 
 #include <rte_ring.h>
 
+/**
+ * Create a new ethdev port from a set of rings
+ *
+ * @param name
+ *    name to be given to the new ethdev port
+ * @param rx_queues
+ *    pointer to array of rte_rings to be used as RX queues
+ * @param nb_rx_queues
+ *    number of elements in the rx_queues array
+ * @param tx_queues
+ *    pointer to array of rte_rings to be used as TX queues
+ * @param nb_tx_queues
+ *    number of elements in the tx_queues array
+ * @param numa_node
+ *    the numa node on which the memory for this port is to be allocated
+ * @return
+ *    the port number of the newly created the ethdev or -1 on error.
+ */
 int rte_eth_from_rings(const char *name,
                struct rte_ring * const rx_queues[],
                const unsigned nb_rx_queues,