From: Xuan Zhuo Date: Mon, 1 Aug 2022 06:38:55 +0000 (+0800) Subject: virtio_mmio: support the arg sizes of find_vqs() X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=fbed86abba6e0472d98079790e58060e4332608a;p=linux.git virtio_mmio: support the arg sizes of find_vqs() Virtio MMIO support the new parameter sizes of find_vqs(). Signed-off-by: Xuan Zhuo Acked-by: Jason Wang Message-Id: <20220801063902.129329-36-xuanzhuo@linux.alibaba.com> Signed-off-by: Michael S. Tsirkin --- diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c index dfcecfd7aba11..c492a57531c61 100644 --- a/drivers/virtio/virtio_mmio.c +++ b/drivers/virtio/virtio_mmio.c @@ -360,7 +360,7 @@ static void vm_synchronize_cbs(struct virtio_device *vdev) static struct virtqueue *vm_setup_vq(struct virtio_device *vdev, unsigned int index, void (*callback)(struct virtqueue *vq), - const char *name, bool ctx) + const char *name, u32 size, bool ctx) { struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev); struct virtio_mmio_vq_info *info; @@ -395,8 +395,11 @@ static struct virtqueue *vm_setup_vq(struct virtio_device *vdev, unsigned int in goto error_new_virtqueue; } + if (!size || size > num) + size = num; + /* Create the vring */ - vq = vring_create_virtqueue(index, num, VIRTIO_MMIO_VRING_ALIGN, vdev, + vq = vring_create_virtqueue(index, size, VIRTIO_MMIO_VRING_ALIGN, vdev, true, true, ctx, vm_notify, callback, name); if (!vq) { err = -ENOMEM; @@ -500,6 +503,7 @@ static int vm_find_vqs(struct virtio_device *vdev, unsigned int nvqs, } vqs[i] = vm_setup_vq(vdev, queue_idx++, callbacks[i], names[i], + sizes ? sizes[i] : 0, ctx ? ctx[i] : false); if (IS_ERR(vqs[i])) { vm_del_vqs(vdev);