在 2022/2/18 上午1:50, Eugenio Pérez 写道:
The code used to limit the maximum size of tx queue for others backends
than vhost_user since the introduction of configurable tx queue size in
9b02e1618cf2 ("virtio-net: enable configurable tx queue size").
As vhost_user, vhost_vdpa devices should deal with memory region
crosses already, so let's use the full tx size.
Signed-off-by: Eugenio Pérez <epere...@redhat.com>
Acked-by: Jason Wang <jasow...@redhat.com>
---
hw/net/virtio-net.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 49cd13314a..b1769bfee0 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -629,17 +629,20 @@ static int virtio_net_max_tx_queue_size(VirtIONet *n)
NetClientState *peer = n->nic_conf.peers.ncs[0];
/*
- * Backends other than vhost-user don't support max queue size.
+ * Backends other than vhost-user or vhost-vdpa don't support max queue
+ * size.
*/
if (!peer) {
return VIRTIO_NET_TX_QUEUE_DEFAULT_SIZE;
}
- if (peer->info->type != NET_CLIENT_DRIVER_VHOST_USER) {
+ switch(peer->info->type) {
+ case NET_CLIENT_DRIVER_VHOST_USER:
+ case NET_CLIENT_DRIVER_VHOST_VDPA:
+ return VIRTQUEUE_MAX_SIZE;
+ default:
return VIRTIO_NET_TX_QUEUE_DEFAULT_SIZE;
- }
-
- return VIRTQUEUE_MAX_SIZE;
+ };
}
static int peer_attach(VirtIONet *n, int index)
