runtime: Support virtiofs queue size for qemu and make it configurable

The default vhost-user-fs queue-size of qemu is 128 now. Set it to 1024
by default which is same as clh. Also make this value configurable.

Fixes: #5694

Signed-off-by: liyuxuan.darfux <liyuxuan.darfux@bytedance.com>

src/runtime/virtcontainers/clh.go

@@ -1587,6 +1587,9 @@ func (clh *cloudHypervisor) addVolume(volume types.Volume) error {
 	// default values defined by cloud-hypervisor
 	numQueues := int32(1)
 	queueSize := int32(1024)
+	if clh.config.VirtioFSQueueSize != 0 {
+		queueSize = int32(clh.config.VirtioFSQueueSize)
+	}
 
 	fs := chclient.NewFsConfig(volume.MountTag, vfsdSockPath, numQueues, queueSize)
 	clh.vmconfig.Fs = &[]chclient.FsConfig{*fs}

src/runtime/virtcontainers/hypervisor.go

@@ -467,6 +467,9 @@ type HypervisorConfig struct {
 	// VirtioFSCacheSize is the DAX cache size in MiB
 	VirtioFSCacheSize uint32
 
+	// Size of virtqueues
+	VirtioFSQueueSize uint32
+
 	// User ID.
 	Uid uint32
 

src/runtime/virtcontainers/qemu.go

@@ -2080,6 +2080,7 @@ func (q *qemu) AddDevice(ctx context.Context, devInfo interface{}, devType Devic
 				Type:      config.VhostUserFS,
 				CacheSize: q.config.VirtioFSCacheSize,
 				Cache:     q.config.VirtioFSCache,
+				QueueSize: q.config.VirtioFSQueueSize,
 			}
 			vhostDev.SocketPath = sockPath
 			vhostDev.DevID = id

src/runtime/virtcontainers/qemu_arch_base.go

@@ -663,6 +663,7 @@ func (q *qemuArchBase) appendVhostUserDevice(ctx context.Context, devices []govm
 		qemuVhostUserDevice.TypeDevID = utils.MakeNameID("fs", attr.DevID, maxDevIDSize)
 		qemuVhostUserDevice.Tag = attr.Tag
 		qemuVhostUserDevice.CacheSize = attr.CacheSize
+		qemuVhostUserDevice.QueueSize = attr.QueueSize
 		qemuVhostUserDevice.VhostUserType = govmmQemu.VhostUserFS
 	}