> -----Original Message-----
> From: Bie, Tiwei
> Sent: Wednesday, April 4, 2018 1:37 PM
> To: Yang, Zhiyong <zhiyong.y...@intel.com>
> Cc: Tan, Jianfeng <jianfeng....@intel.com>; dev@dpdk.org;
> maxime.coque...@redhat.com; tho...@monjalon.net; Wang, Zhihong
> <zhihong.w...@intel.com>
> Subject: Re: [PATCH v4 1/1] net/virtio-user: add support for server mode
>
> On Tue, Apr 03, 2018 at 11:16:26PM +0800, Tan, Jianfeng wrote:
> > On 4/3/2018 8:20 PM, zhiyong.y...@intel.com wrote:
> [...]
> > > @@ -267,21 +270,27 @@ virtio_user_dev_setup(struct virtio_user_dev
> *dev)
> > > dev->vhostfds = NULL;
> > > dev->tapfds = NULL;
> >
> > Add a check here:
> > if (dev->is_server && !is_vhost_user_by_type(dev->path))
> > return error;
> >
> > > - if (is_vhost_user_by_type(dev->path)) {
> > > - dev->ops = &ops_user;
> > > + if (dev->is_server) {
> > > + dev->ops = &ops_user;/* server mode only supports vhost
> user*/
> > > } else {
> > > - dev->ops = &ops_kernel;
> > > -
> > > - dev->vhostfds = malloc(dev->max_queue_pairs *
> sizeof(int));
> > > - dev->tapfds = malloc(dev->max_queue_pairs * sizeof(int));
> > > - if (!dev->vhostfds || !dev->tapfds) {
> > > - PMD_INIT_LOG(ERR, "Failed to malloc");
> > > - return -1;
> > > - }
> > > -
> > > - for (q = 0; q < dev->max_queue_pairs; ++q) {
> > > - dev->vhostfds[q] = -1;
> > > - dev->tapfds[q] = -1;
> > > + if (is_vhost_user_by_type(dev->path)) {
> > > + dev->ops = &ops_user;
> > > + } else {
> > > + dev->ops = &ops_kernel;
> > > +
> > > + dev->vhostfds = malloc(dev->max_queue_pairs *
> > > + sizeof(int));
> > > + dev->tapfds = malloc(dev->max_queue_pairs *
> > > + sizeof(int));
> > > + if (!dev->vhostfds || !dev->tapfds) {
> > > + PMD_INIT_LOG(ERR, "Failed to malloc");
> > > + return -1;
> > > + }
> > > +
> > > + for (q = 0; q < dev->max_queue_pairs; ++q) {
> > > + dev->vhostfds[q] = -1;
> > > + dev->tapfds[q] = -1;
> > > + }
> > > }
> > > }
>
> Hi Zhiyong,
>
> I think we can keep using is_vhost_user_by_type() to determine the ops for
> dev->ops. And you just need to add a check in the vhost-kernel case.
> Something like
> this:
>
> --- i/drivers/net/virtio/virtio_user/virtio_user_dev.c
> +++ w/drivers/net/virtio/virtio_user/virtio_user_dev.c
> @@ -270,6 +270,9 @@ virtio_user_dev_setup(struct virtio_user_dev *dev)
> if (is_vhost_user_by_type(dev->path)) {
> dev->ops = &ops_user;
> } else {
> + if (dev->is_server)
> + return -1;
> +
> dev->ops = &ops_kernel;
>
> dev->vhostfds = malloc(dev->max_queue_pairs *
> sizeof(int));
>
Ok, thanks, tiwei.
