From d85d7e804d9ad05817af77bcb775bdd546ecc0a3 Mon Sep 17 00:00:00 2001
From: Xiao Wang <jasowang@redhat.com>
Date: Thu, 18 Jun 2015 06:11:55 +0200
Subject: [PATCH 19/20] virtio: increase the queue limit to 1024
Message-id: <1434607916-15166-20-git-send-email-jasowang@redhat.com>
Patchwork-id: 66318
O-Subject: [RHEL7.2 qemu-kvm-rhev PATCH 19/20] virtio: increase the queue limit to 1024
Bugzilla: 1231610
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Vlad Yasevich <vyasevic@redhat.com>
RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>
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 <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit b829c2a98f1f67308eb02fcddb52d8fa67775f18)
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
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 a9e22af..fc0aeaa 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
--
1.8.3.1