On Mon, Oct 28, 2019 at 10:18:11PM +0800, Marvin Liu wrote:
> Virtio spec only set rule that packed ring maximum size is up to 2^15
> entries. Do not limit packed ring size to power of two.
Please add a "Fixes:" line.
>
> Signed-off-by: Marvin Liu <yong....@intel.com>
> ---
> lib/librte_vhost/vhost_user.c | 15 ++++++++++++++-
> 1 file changed, 14 insertions(+), 1 deletion(-)
>
> diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
> index 87dc3fc53..bbf323373 100644
> --- a/lib/librte_vhost/vhost_user.c
> +++ b/lib/librte_vhost/vhost_user.c
> @@ -363,8 +363,21 @@ vhost_user_set_vring_num(struct virtio_net **pdev,
> *
> * Queue Size value is always a power of 2. The maximum Queue Size
> * value is 32768.
> + *
> + * VIRTIO 1.1 2.7 Virtqueues says:
> + *
> + * Packed virtqueues support up to 2^15 entries each.
> */
> - if ((vq->size & (vq->size - 1)) || vq->size > 32768) {
> + if (!vq_is_packed(dev)) {
> + if (vq->size & (vq->size - 1)) {
> + RTE_LOG(ERR, VHOST_CONFIG,
> + "invalid virtqueue size %u\n", vq->size);
> + return RTE_VHOST_MSG_RESULT_ERR;
> + }
> +
> + }
Please remove above empty line.
> +
> + if (vq->size > 32768) {
> RTE_LOG(ERR, VHOST_CONFIG,
> "invalid virtqueue size %u\n", vq->size);
> return RTE_VHOST_MSG_RESULT_ERR;
> --
> 2.17.1
>
