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[Qemu-devel] [PATCH 08/12] virtio: add a queue_index to VirtQueue
From: |
Jason Wang |
Subject: |
[Qemu-devel] [PATCH 08/12] virtio: add a queue_index to VirtQueue |
Date: |
Fri, 28 Dec 2012 18:32:00 +0800 |
Add a queue_index to VirtQueue and a helper to fetch it, this could be used by
multiqueue supported device.
Signed-off-by: Jason Wang <address@hidden>
---
hw/virtio.c | 8 ++++++++
hw/virtio.h | 1 +
2 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/hw/virtio.c b/hw/virtio.c
index bc3c9c3..726c139 100644
--- a/hw/virtio.c
+++ b/hw/virtio.c
@@ -72,6 +72,8 @@ struct VirtQueue
/* Notification enabled? */
bool notification;
+ uint16_t queue_index;
+
int inuse;
uint16_t vector;
@@ -929,6 +931,7 @@ VirtIODevice *virtio_common_init(const char *name, uint16_t
device_id,
for(i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) {
vdev->vq[i].vector = VIRTIO_NO_VECTOR;
vdev->vq[i].vdev = vdev;
+ vdev->vq[i].queue_index = i;
}
vdev->name = name;
@@ -1008,6 +1011,11 @@ VirtQueue *virtio_get_queue(VirtIODevice *vdev, int n)
return vdev->vq + n;
}
+uint16_t virtio_get_queue_index(VirtQueue *vq)
+{
+ return vq->queue_index;
+}
+
static void virtio_queue_guest_notifier_read(EventNotifier *n)
{
VirtQueue *vq = container_of(n, VirtQueue, guest_notifier);
diff --git a/hw/virtio.h b/hw/virtio.h
index f6cb0f9..07b38d6 100644
--- a/hw/virtio.h
+++ b/hw/virtio.h
@@ -237,6 +237,7 @@ hwaddr virtio_queue_get_ring_size(VirtIODevice *vdev, int
n);
uint16_t virtio_queue_get_last_avail_idx(VirtIODevice *vdev, int n);
void virtio_queue_set_last_avail_idx(VirtIODevice *vdev, int n, uint16_t idx);
VirtQueue *virtio_get_queue(VirtIODevice *vdev, int n);
+uint16_t virtio_get_queue_index(VirtQueue *vq);
int virtio_queue_get_id(VirtQueue *vq);
EventNotifier *virtio_queue_get_guest_notifier(VirtQueue *vq);
void virtio_queue_set_guest_notifier_fd_handler(VirtQueue *vq, bool assign,
--
1.7.1
- [Qemu-devel] [PATCH 00/12] Multiqueue virtio-net, Jason Wang, 2012/12/28
- [Qemu-devel] [PATCH 01/12] tap: multiqueue support, Jason Wang, 2012/12/28
- [Qemu-devel] [PATCH 04/12] net: intorduce qemu_del_nic(), Jason Wang, 2012/12/28
- [Qemu-devel] [PATCH 02/12] net: introduce qemu_get_queue(), Jason Wang, 2012/12/28
- [Qemu-devel] [PATCH 05/12] net: multiqueue support, Jason Wang, 2012/12/28
- [Qemu-devel] [PATCH 03/12] net: introduce qemu_get_nic(), Jason Wang, 2012/12/28
- [Qemu-devel] [PATCH 06/12] vhost: multiqueue support, Jason Wang, 2012/12/28
- [Qemu-devel] [PATCH 07/12] virtio: introduce virtio_queue_del(), Jason Wang, 2012/12/28
- [Qemu-devel] [PATCH 08/12] virtio: add a queue_index to VirtQueue,
Jason Wang <=
- [Qemu-devel] [PATCH 09/12] virtio-net: separate virtqueue from VirtIONet, Jason Wang, 2012/12/28
- [Qemu-devel] [PATCH 11/12] virtio-net: migration support for multiqueue, Jason Wang, 2012/12/28
- [Qemu-devel] [PATCH 12/12] virtio-net: compat multiqueue support, Jason Wang, 2012/12/28
- [Qemu-devel] [PATCH 10/12] virtio-net: multiqueue support, Jason Wang, 2012/12/28