From: Eugenio Pérez <[email protected]>
It was a mistake to forbid in all cases, as SVQ is already able to send
all the CVQ messages before start forwarding data vqs. It actually
caused a regression, making impossible to migrate device previously
migratable.
Fixes: 36e4647247f2 ("vdpa: add vhost_vdpa_net_valid_svq_features")
Signed-off-by: Eugenio Pérez <[email protected]>
Message-Id: <[email protected]>
Reviewed-by: Michael S. Tsirkin <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
Tested-by: Lei Yang <[email protected]>
---
net/vhost-vdpa.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index 46778d5313..4345f1e6de 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -915,13 +915,16 @@ static NetClientState *net_vhost_vdpa_init(NetClientState
*peer,
s->cvq_isolated = cvq_isolated;
/*
- * TODO: We cannot migrate devices with CVQ as there is no way to set
- * the device state (MAC, MQ, etc) before starting the datapath.
+ * TODO: We cannot migrate devices with CVQ and no x-svq enabled as
+ * there is no way to set the device state (MAC, MQ, etc) before
+ * starting the datapath.
*
* Migration blocker ownership now belongs to s->vhost_vdpa.
*/
- error_setg(&s->vhost_vdpa.migration_blocker,
- "net vdpa cannot migrate with CVQ feature");
+ if (!svq) {
+ error_setg(&s->vhost_vdpa.migration_blocker,
+ "net vdpa cannot migrate with CVQ feature");
+ }
}
ret = vhost_vdpa_add(nc, (void *)&s->vhost_vdpa, queue_pair_index, nvqs);
if (ret) {
--
MST
