diff mbox

[dpdk-dev,v3,10/28] ethdev: Add rte_eth_dev_get_name_by_port

Message ID 1418106629-22227-11-git-send-email-mukawa@igel.co.jp (mailing list archive)
State Superseded, archived
Headers show

Commit Message

Tetsuya Mukawa Dec. 9, 2014, 6:30 a.m. UTC
The function returns a unique identifier name of a ethdev specified by
port identifier.

Signed-off-by: Tetsuya Mukawa <mukawa@igel.co.jp>
---
 lib/librte_ether/rte_ethdev.c | 22 ++++++++++++++++++++++
 lib/librte_ether/rte_ethdev.h | 12 ++++++++++++
 2 files changed, 34 insertions(+)
diff mbox

Patch

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 4e9f0f7..1d82f69 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -476,6 +476,28 @@  rte_eth_dev_get_port_by_addr(struct rte_pci_addr *addr, uint8_t *port_id)
 	return -1;
 }
 
+int
+rte_eth_dev_get_name_by_port(uint8_t port_id, char *name)
+{
+	char *tmp;
+
+	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
+		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
+		return -EINVAL;
+	}
+
+	if (name == NULL) {
+		PMD_DEBUG_TRACE("Null pointer is specified\n");
+		return -EINVAL;
+	}
+
+	/* shouldn't check 'rte_eth_devices[i].data',
+	 * because it might be overwritten by VDEV PMD */
+	tmp = rte_eth_dev_data[port_id].name;
+	strncpy(name, tmp, strlen(tmp) + 1);
+	return 0;
+}
+
 static int
 rte_eth_dev_rx_queue_config(struct rte_eth_dev *dev, uint16_t nb_queues)
 {
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 8c55c56..bd921d0 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -1689,6 +1689,18 @@  extern int rte_eth_dev_get_port_by_addr(
 		struct rte_pci_addr *addr, uint8_t *port_id);
 
 /**
+ * Function for internal use by port hotplug functions.
+ * Returns a unique identifier name of a ethdev specified by port identifier.
+ * @param	port_id
+ *   The port identifier.
+ * @param	name
+ *  The pointer to the Unique identifier name for each Ethernet device
+ * @return
+ *   - 0 on success, negative on error
+ */
+extern int rte_eth_dev_get_name_by_port(uint8_t port_id, char *name);
+
+/**
  * Function for internal use by dummy drivers primarily, e.g. ring-based
  * driver.
  * Allocates a new ethdev slot for an ethernet device and returns the pointer