[Qemu-devel] [PATCH RFC 11/14] hw/virtio-pci: introduce num_queues property

[Ming Lei <ming.lei@canonical.com>]

This patch introduces the parameter of 'num_queues', and
prepare for supporting mutli vqs of virtio-blk.

Signed-off-by: Ming Lei <ming.lei@canonical.com>
---
 hw/block/virtio-blk.c          |    1 +
 include/hw/virtio/virtio-blk.h |    1 +
 2 files changed, 2 insertions(+)

diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
index 2a11bc4..ab99156 100644
--- a/hw/block/virtio-blk.c
+++ b/hw/block/virtio-blk.c
@@ -826,6 +826,7 @@ static Property virtio_blk_properties[] = {
 #endif
 #ifdef CONFIG_VIRTIO_BLK_DATA_PLANE
     DEFINE_PROP_BIT("x-data-plane", VirtIOBlock, blk.data_plane, 0, false),
+    DEFINE_PROP_UINT32("num_queues", VirtIOBlock, blk.num_queues, 1),
 #endif
     DEFINE_PROP_END_OF_LIST(),
 };
diff --git a/include/hw/virtio/virtio-blk.h b/include/hw/virtio/virtio-blk.h
index 49ac234..45f8894 100644
--- a/include/hw/virtio/virtio-blk.h
+++ b/include/hw/virtio/virtio-blk.h
@@ -114,6 +114,7 @@ struct VirtIOBlkConf
     uint32_t scsi;
     uint32_t config_wce;
     uint32_t data_plane;
+    uint32_t num_queues;
 };
 
 struct VirtIOBlockDataPlane;
-- 
1.7.9.5