[dpdk-dev] [PATCH 1/2] ethdev: make rte_eth_dev_is_valid_port public

[Stephen Hemminger <stephen@networkplumber.org>]

From: Stephen Hemminger <shemming@brocade.com>

The function rte_eth_dev_is_valid_port is good way to have all
drivers using same function and solves several hotplug related
bugs from drivers not checking attached flag.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/librte_ether/rte_ethdev.c          |  2 +-
 lib/librte_ether/rte_ethdev.h          | 11 +++++++++++
 lib/librte_ether/rte_ether_version.map |  1 +
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 5a94654..ae4d86d 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -401,7 +401,7 @@ rte_eth_driver_register(struct eth_driver *eth_drv)
 	rte_eal_pci_register(&eth_drv->pci_drv);
 }
 
-static int
+int
 rte_eth_dev_is_valid_port(uint8_t port_id)
 {
 	if (port_id >= RTE_MAX_ETHPORTS ||
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 16dbe00..b640e5b 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -1853,6 +1853,17 @@ extern int rte_eth_tx_queue_setup(uint8_t port_id, uint16_t tx_queue_id,
 extern int rte_eth_dev_socket_id(uint8_t port_id);
 
 /*
+ * Check if port_id of device is attached
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device
+ * @return
+ *   0 if port is out of range or not attached
+ *   1 if device is attached
+ */
+extern int rte_eth_dev_is_valid_port(uint8_t port_id);
+	
+/*
  * Allocate mbuf from mempool, setup the DMA physical address
  * and then start RX for specified queue of a port. It is used
  * when rx_deferred_start flag of the specified queue is true.
diff --git a/lib/librte_ether/rte_ether_version.map b/lib/librte_ether/rte_ether_version.map
index a2d25a6..8aa3501 100644
--- a/lib/librte_ether/rte_ether_version.map
+++ b/lib/librte_ether/rte_ether_version.map
@@ -63,6 +63,7 @@ DPDK_2.0 {
 	rte_eth_dev_set_vlan_offload;
 	rte_eth_dev_set_vlan_pvid;
 	rte_eth_dev_set_vlan_strip_on_queue;
+	rte_eth_dev_is_valid_port;
 	rte_eth_dev_socket_id;
 	rte_eth_dev_start;
 	rte_eth_dev_stop;
-- 
2.1.4