[v5,22/24] net/tap: enable port detach on secondary process
diff mbox series

Message ID 20180627071740.19870-23-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State Superseded, archived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/checkpatch success coding style OK
ci/Intel-compilation fail Compilation issues

Commit Message

Zhang, Qi Z June 27, 2018, 7:17 a.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_private, we can support this
with minor change.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Keith Wiles <keith.wiles@intel.com>
---
 drivers/net/tap/rte_eth_tap.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

Patch
diff mbox series

diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c
index df396bfde..bb5f20b01 100644
--- a/drivers/net/tap/rte_eth_tap.c
+++ b/drivers/net/tap/rte_eth_tap.c
@@ -1759,6 +1759,7 @@  rte_pmd_tap_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;
 	}
@@ -1827,12 +1828,24 @@  rte_pmd_tap_remove(struct rte_vdev_device *dev)
 {
 	struct rte_eth_dev *eth_dev = NULL;
 	struct pmd_internals *internals;
+	const char *name;
 	int i;
 
+	name = rte_vdev_device_name(dev);
 	/* find the ethdev entry */
-	eth_dev = rte_eth_dev_allocated(rte_vdev_device_name(dev));
+	eth_dev = rte_eth_dev_allocated(name);
 	if (!eth_dev)
-		return 0;
+		return -ENODEV;
+
+	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_private(eth_dev);
+		/**
+		 * else this is a private device for current process
+		 * so continue with normal detach scenario
+		 */
+	}
 
 	internals = eth_dev->data->dev_private;