[dpdk-dev] [PATCH v2 14/22] net/failsafe: enable port detach on secondary process

[Qi Zhang]

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.zh...@intel.com>
---
 drivers/net/failsafe/failsafe.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/net/failsafe/failsafe.c b/drivers/net/failsafe/failsafe.c
index eafbb75df..c5e8651f6 100644
--- a/drivers/net/failsafe/failsafe.c
+++ b/drivers/net/failsafe/failsafe.c
@@ -328,6 +328,7 @@ rte_pmd_failsafe_probe(struct rte_vdev_device *vdev)
                }
                /* TODO: request info from primary to set up Rx and Tx */
                eth_dev->dev_ops = &failsafe_ops;
+               eth_dev->device = &vdev->device;
                rte_eth_dev_probing_finish(eth_dev);
                return 0;
        }
@@ -338,10 +339,25 @@ rte_pmd_failsafe_probe(struct rte_vdev_device *vdev)
 static int
 rte_pmd_failsafe_remove(struct rte_vdev_device *vdev)
 {
+       struct rte_eth_dev *eth_dev;
        const char *name;
 
        name = rte_vdev_device_name(vdev);
        INFO("Uninitializing " FAILSAFE_DRIVER_NAME " for %s", name);
+
+       eth_dev = rte_eth_dev_allocated(name);
+       if (!eth_dev)
+               return -ENODEV;
+       if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+               /* detach device on local pprocess only */
+               if (strlen(rte_vdev_device_args(vdev)) == 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.
+                */
+       }
+
        return fs_rte_eth_free(name);
 }
 
-- 
2.13.6