> -----邮件原件----- > 发件人: Tiwei Bie [mailto:tiwei....@intel.com] > 发送时间: 2019年5月21日 16:47 > 收件人: lin li <chuckylinchucky...@gmail.com> > 抄送: dev@dpdk.org; dariusz.stojac...@intel.com; changpeng....@intel.com; > Li,Lin(ACG Cloud) <lili...@baidu.com>; maxime.coque...@redhat.com > 主题: Re: [PATCH v4] vhost: support inflight share memory protocol feature > > On Tue, May 21, 2019 at 04:29:31PM +0800, lin li wrote: > > Tiwei Bie <tiwei....@intel.com> 于2019年5月20日周一上午10:14写道： > > > > > > On Fri, May 17, 2019 at 05:47:07PM +0200, Maxime Coquelin wrote: > > > > On 5/5/19 11:02 AM, Li Lin wrote: > > > [...] > > > > > /** > > > > > * Device structure contains all configuration information relating > > > > > * to the device. > > > > > @@ -303,6 +314,7 @@ struct virtio_net { > > > > > uint32_t nr_vring; > > > > > int dequeue_zero_copy; > > > > > struct vhost_virtqueue *virtqueue[VHOST_MAX_QUEUE_PAIRS > * > > > > > 2]; > > > > > + struct inflight_mem_info inflight_info; > > > > > #define IF_NAME_SZ (PATH_MAX > IFNAMSIZ ? PATH_MAX : > IFNAMSIZ) > > > > > char ifname[IF_NAME_SZ]; > > > > > uint64_t log_size; > > > > > > > > Do you have some code example using these new APIs? > > > > It would help for reviewing the patch. > > > > > > +1 > > I just submitted SPDK-related patches, and you will see how to use new API. > > SPDK is another separate project. For the DPDK APIs introduced in this patch, > it > would be great to have an example in DPDK to demonstrate their usage, e.g. > examples/vhost_scsi. Besides, the new APIs also need to take the packed ring > into consideration.
The patch does not apply to SCSI ,and disconnection can cause a timeout problem in SCSI. To disconnection, scsi driver have a different process. This patch is only valid for vhost blk. The use of new two messages and the implementation of packed queue are described in docs/vhost-user.txt. > > Thanks, > Tiwei
