Applications need to stop DMA transfers and finish all the in-flight
pkts when in VM memory hot-plug case and async vhost is used. This
patch is to provide an unsafe API to drain in-flight pkts which are
submitted to DMA engine in vhost async data path.
Signed-off-by: Cheng Jiang
---
lib/vhost/r
Hi Cheng,
Comments inline.
> +uint16_t rte_vhost_drain_queue_thread_unsafe(int vid, uint16_t
> queue_id,
> + struct rte_mbuf **pkts, uint16_t count) {
> + struct virtio_net *dev = get_device(vid);
> + struct vhost_virtqueue *vq;
> + uint16_t n_pkts = count;
> +
> +
On 6/15/21 4:15 PM, Cheng Jiang wrote:
> Applications need to stop DMA transfers and finish all the in-flight
> pkts when in VM memory hot-plug case and async vhost is used. This
> patch is to provide an unsafe API to drain in-flight pkts which are
> submitted to DMA engine in vhost async data p
ev] [PATCH v2 1/3] vhost: add unsafe API to drain pkts in
> async vhost
>
> Hi Cheng,
>
> Comments inline.
>
>
>
> > +uint16_t rte_vhost_drain_queue_thread_unsafe(int vid, uint16_t
> > queue_id,
> > + struct rte_mbuf **pkts, uint16_t count)
Hi Cheng,
Repsonse inline.
> As for this one, I'm not sure why we need have the loop in the application.
> The function of this API is that caller need to drain all the inflight pkts,
> it
> should be called only once to get the job done.
> Don't you think?
Perhaps yes, but my thought was to
Hi Maxime,
> -Original Message-
> From: Maxime Coquelin
> Sent: Tuesday, July 6, 2021 10:09 PM
> To: Jiang, Cheng1 ; Xia, Chenbo
>
> Cc: dev@dpdk.org; Hu, Jiayu ; Yang, YvonneX
>
> Subject: Re: [PATCH v2 1/3] vhost: add unsafe API to drain pkts in async vhost
>
>
>
> On 6/15/21 4:15
Hi,
> -Original Message-
> From: Pai G, Sunil
> Sent: Thursday, July 8, 2021 3:15 PM
> To: Jiang, Cheng1 ; maxime.coque...@redhat.com;
> Xia, Chenbo
> Cc: dev@dpdk.org; Hu, Jiayu ; Yang, YvonneX
>
> Subject: RE: [dpdk-dev] [PATCH v2 1/3] vhost: add unsafe API
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