[dpdk-dev,18/22] net/pcap: enable port detach on secondary process
diff mbox series

Message ID 20180607123849.14439-19-qi.z.zhang@intel.com
State Superseded, archived
Delegated to: Thomas Monjalon
Headers show
Series
  • enable hotplug on multi-process
Related show

Checks

Context Check Description
ci/Intel-compilation fail Compilation issues
ci/checkpatch success coding style OK

Commit Message

Zhang, Qi Z June 7, 2018, 12:38 p.m. UTC
Previously, detach port on secondary process will mess primary
process and cause same device can't be attached again, by take
advantage of rte_eth_release_port_local, we can support this with
minor change.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
 drivers/net/pcap/rte_eth_pcap.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

Patch
diff mbox series

diff --git a/drivers/net/pcap/rte_eth_pcap.c b/drivers/net/pcap/rte_eth_pcap.c
index 6bd4a7d79..4c366a92b 100644
--- a/drivers/net/pcap/rte_eth_pcap.c
+++ b/drivers/net/pcap/rte_eth_pcap.c
@@ -925,6 +925,7 @@  pmd_pcap_probe(struct rte_vdev_device *dev)
 		}
 		/* TODO: request info from primary to set up Rx and Tx */
 		eth_dev->dev_ops = &ops;
+		eth_dev->device = &dev->device;
 		rte_eth_dev_probing_finish(eth_dev);
 		return 0;
 	}
@@ -1016,6 +1017,7 @@  static int
 pmd_pcap_remove(struct rte_vdev_device *dev)
 {
 	struct rte_eth_dev *eth_dev = NULL;
+	const char *name;
 
 	PMD_LOG(INFO, "Closing pcap ethdev on numa socket %d",
 			rte_socket_id());
@@ -1023,11 +1025,22 @@  pmd_pcap_remove(struct rte_vdev_device *dev)
 	if (!dev)
 		return -1;
 
+	name = rte_vdev_device_name(dev);
 	/* reserve an ethdev entry */
-	eth_dev = rte_eth_dev_allocated(rte_vdev_device_name(dev));
+	eth_dev = rte_eth_dev_allocated(name);
 	if (eth_dev == NULL)
 		return -1;
 
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+		/* detach device on local pprocess only */
+		if (strlen(rte_vdev_device_args(dev)) == 0)
+			return rte_eth_dev_release_port_local(eth_dev);
+		/**
+		 * else this is a private device for current process
+		 * so continue with normal detach scenario
+		 */
+	}
+
 	rte_free(eth_dev->data->dev_private);
 
 	rte_eth_dev_release_port(eth_dev);