[dpdk-dev] [PATCH v3 4/6] vhost: handle memory hotplug with vDPA devices
From: Matan Azrad <hidden>
Date: 2020-06-29 14:09:17
Subsystem:
library code, the rest · Maintainers:
Andrew Morton, Linus Torvalds
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 <redacted> Reviewed-by: Maxime Coquelin <redacted> Reviewed-by: Chenbo Xia <redacted> --- 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