Re: [dpdk-dev] [PATCH v2] doc: add driver limitation for vhost dequeue zero copy

2018-03-08 Thread Chen, Junjie J
> -Original Message- > From: Maxime Coquelin [mailto:maxime.coque...@redhat.com] > Sent: Tuesday, March 6, 2018 4:57 PM > To: Chen, Junjie J ; y...@fridaylinux.org; Tan, > Jianfeng > Cc: dev@dpdk.org > Subject: Re: [PATCH v2] doc: add driver limitation for vhost dequeue zero copy > > >

Re: [dpdk-dev] [PATCH v2] doc: add driver limitation for vhost dequeue zero copy

2018-03-06 Thread Maxime Coquelin
On 02/27/2018 10:21 AM, Junjie Chen wrote: In vhost-switch example, when binding nic to vfio-pci, dequeue zero copy cannot work in VM2NIC mode due to no iommu dma mapping is setup for guest memory currently. Signed-off-by: Junjie Chen --- Changes in V2: - add doc in vhost lib doc/guides/

[dpdk-dev] [PATCH v2] doc: add driver limitation for vhost dequeue zero copy

2018-02-26 Thread Junjie Chen
In vhost-switch example, when binding nic to vfio-pci, dequeue zero copy cannot work in VM2NIC mode due to no iommu dma mapping is setup for guest memory currently. Signed-off-by: Junjie Chen --- Changes in V2: - add doc in vhost lib doc/guides/prog_guide/vhost_lib.rst | 3 +++ doc/guides/samp