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[Qemu-devel] [PULL v2 39/60] virtio: increase the queue limit to 1024


From: Michael S. Tsirkin
Subject: [Qemu-devel] [PULL v2 39/60] virtio: increase the queue limit to 1024
Date: Mon, 1 Jun 2015 14:24:29 +0200

From: Jason Wang <address@hidden>

Increase the queue limit to 1024. But virtio-ccw and s390-virtio won't
support this, this is done through failing device_plugged() for those
two transports if the number of virtqueues is greater than 64.

Signed-off-by: Jason Wang <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
 include/hw/virtio/virtio.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index 4411dca..45d6e5b 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -48,7 +48,7 @@ typedef struct VirtQueueElement
     struct iovec out_sg[VIRTQUEUE_MAX_SIZE];
 } VirtQueueElement;
 
-#define VIRTIO_QUEUE_MAX 64
+#define VIRTIO_QUEUE_MAX 1024
 
 #define VIRTIO_NO_VECTOR 0xffff
 
-- 
MST




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