[dpdk-dev] [PATCH v4 14/24] net/af_packet: enable port detach on secondary process

Qi Zhang qi.z.zhang at intel.com
Tue Jun 26 09:08:22 CEST 2018


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 at intel.com>
---
 drivers/net/af_packet/rte_eth_af_packet.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/net/af_packet/rte_eth_af_packet.c b/drivers/net/af_packet/rte_eth_af_packet.c
index ea47abbf8..33ac19de8 100644
--- a/drivers/net/af_packet/rte_eth_af_packet.c
+++ b/drivers/net/af_packet/rte_eth_af_packet.c
@@ -935,6 +935,7 @@ rte_pmd_af_packet_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;
 	}
@@ -986,6 +987,16 @@ rte_pmd_af_packet_remove(struct rte_vdev_device *dev)
 	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_private(eth_dev);
+		/**
+		 * else this is a private device for current process
+		 * so continue with normal detach scenario
+		 */
+	}
+
 	internals = eth_dev->data->dev_private;
 	for (q = 0; q < internals->nb_queues; q++) {
 		rte_free(internals->rx_queue[q].rd);
-- 
2.13.6



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