From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:60488) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ToXNl-0000xx-Un for qemu-devel@nongnu.org; Fri, 28 Dec 2012 05:41:43 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ToXNk-0003Lx-G2 for qemu-devel@nongnu.org; Fri, 28 Dec 2012 05:41:41 -0500 Received: from mx1.redhat.com ([209.132.183.28]:6018) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ToXNk-0003Lq-0Y for qemu-devel@nongnu.org; Fri, 28 Dec 2012 05:41:40 -0500 From: Jason Wang Date: Fri, 28 Dec 2012 18:32:00 +0800 Message-Id: <1356690724-37891-9-git-send-email-jasowang@redhat.com> In-Reply-To: <1356690724-37891-1-git-send-email-jasowang@redhat.com> References: <1356690724-37891-1-git-send-email-jasowang@redhat.com> Subject: [Qemu-devel] [PATCH 08/12] virtio: add a queue_index to VirtQueue List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: mst@redhat.com, aliguori@us.ibm.com, stefanha@redhat.com, qemu-devel@nongnu.org Cc: krkumar2@in.ibm.com, kvm@vger.kernel.org, mprivozn@redhat.com, Jason Wang , rusty@rustcorp.com.au, jwhan@filewood.snu.ac.kr, shiyer@redhat.com 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 --- 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