Re: [dpdk-dev] [PATCH v5] vhost: support virtqueue interrupt/notification suppression

2017-12-26 Thread Wang, Xiao W
Hi, > -Original Message- > From: Chen, Junjie J > Sent: Sunday, December 24, 2017 12:56 AM > To: y...@fridaylinux.org; maxime.coque...@redhat.com; Bie, Tiwei > ; Wang, Xiao W > Cc: dev@dpdk.org; Chen, Junjie J > Subject: [PATCH v5] vhost: support virtqueue interrupt/notification > suppre

[dpdk-dev] [PATCH v5] vhost: support virtqueue interrupt/notification suppression

2017-12-23 Thread Junjie Chen
The driver can suppress interrupt when VIRTIO_F_EVENT_IDX feature bit is negotiated. The driver set vring flags to 0, and MAY use used_event in available ring to advise device interrupt util reach an index specified by used_event. The device ignore the lower bit of vring flags, and send an interrup