Re: [dpdk-dev] [PATCH] vhost: fix async packed ring batch datapath

2021-07-19 Thread Xia, Chenbo
> -Original Message- > From: Jiang, Cheng1 > Sent: Thursday, July 8, 2021 6:25 PM > To: maxime.coque...@redhat.com; Xia, Chenbo > Cc: dev@dpdk.org; Hu, Jiayu ; Yang, YvonneX > ; Jiang, Cheng1 ; > sta...@dpdk.org > Subject: [PATCH] vhost: fix async packed ring batch datapath > > We assume

Re: [dpdk-dev] [PATCH] vhost: fix async packed ring batch datapath

2021-07-19 Thread Maxime Coquelin
Hi, On 7/8/21 12:25 PM, Cheng Jiang wrote: > We assume that in the sync path, if there is no buffer wrap in the > avail descriptors fetched in a batch, there is no buffer wrap in the > used descriptors which need to be written back in this batch, but > this assumption is wrong in the async path si