[dpdk-dev] [PATCH v2 3/5] vhost: handle memory hotplug with vDPA devices

[Matan Azrad]

Some vDPA drivers' basic configurations should be updated when the
guest memory is hotplugged.

Close vDPA device before hotplug operation and recreate it after the
hotplug operation is done.

Signed-off-by: Matan Azrad <ma...@mellanox.com>
---
 lib/librte_vhost/vhost_user.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index b90fc78..f690fdb 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -1073,6 +1073,15 @@
        }
 
        if (dev->mem) {
+               if (dev->flags & VIRTIO_DEV_VDPA_CONFIGURED) {
+                       int did = dev->vdpa_dev_id;
+                       struct rte_vdpa_device *vdpa_dev =
+                                               rte_vdpa_get_device(did);
+
+                       if (vdpa_dev && vdpa_dev->ops->dev_close)
+                               vdpa_dev->ops->dev_close(dev->vid);
+                       dev->flags &= ~VIRTIO_DEV_VDPA_CONFIGURED;
+               }
                free_mem_region(dev);
                rte_free(dev->mem);
                dev->mem = NULL;
-- 
1.8.3.1