ethdev: add siblings iterators

[dpdk.git] / lib / librte_ethdev / rte_ethdev.c

diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
index b262190..243beb4 100644 (file)
--- a/lib/librte_ethdev/rte_ethdev.c
+++ b/lib/librte_ethdev/rte_ethdev.c
@@ -339,6 +339,25 @@ rte_eth_find_next(uint16_t port_id)
        return port_id;
 }
 
+uint16_t
+rte_eth_find_next_of(uint16_t port_id, const struct rte_device *parent)
+{
+       port_id = rte_eth_find_next(port_id);
+       while (port_id < RTE_MAX_ETHPORTS &&
+                       rte_eth_devices[port_id].device != parent)
+               port_id = rte_eth_find_next(port_id + 1);
+
+       return port_id;
+}
+
+uint16_t
+rte_eth_find_next_sibling(uint16_t port_id, uint16_t ref_port_id)
+{
+       RTE_ETH_VALID_PORTID_OR_ERR_RET(ref_port_id, RTE_MAX_ETHPORTS);
+       return rte_eth_find_next_of(port_id,
+                       rte_eth_devices[ref_port_id].device);
+}
+
 static void
 rte_eth_dev_shared_data_prepare(void)
 {