Re: [PATCH] vdpa: bypass waking up vhost_woker for vdpa vq kick

2020-06-02 Thread Jason Wang
On 2020/6/2 下午6:16, Jason Wang wrote: On 2020/6/2 下午5:42, Dan Carpenter wrote: Hi Zhu, url: https://github.com/0day-ci/linux/commits/Zhu-Lingshan/vdpa-bypass-waking-up-vhost_woker-for-vdpa-vq-kick/20200526-133819 base: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git

Re: [PATCH] vdpa: bypass waking up vhost_woker for vdpa vq kick

2020-06-02 Thread Jason Wang
On 2020/6/2 下午5:42, Dan Carpenter wrote: Hi Zhu, url: https://github.com/0day-ci/linux/commits/Zhu-Lingshan/vdpa-bypass-waking-up-vhost_woker-for-vdpa-vq-kick/20200526-133819 base: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next config:

Re: [PATCH] vdpa: bypass waking up vhost_woker for vdpa vq kick

2020-06-02 Thread Dan Carpenter
Hi Zhu, url: https://github.com/0day-ci/linux/commits/Zhu-Lingshan/vdpa-bypass-waking-up-vhost_woker-for-vdpa-vq-kick/20200526-133819 base: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next config: x86_64-randconfig-m001-20200529 (attached as .config) compiler: gcc-9

Re: [PATCH] vdpa: bypass waking up vhost_woker for vdpa vq kick

2020-05-28 Thread Jason Wang
On 2020/5/26 下午1:32, Zhu Lingshan wrote: Standard vhost devices rely on waking up a vhost_worker to kick a virtquque. However vdpa devices have hardware backends, so it does not need this waking up routin. In this commit, vdpa device will kick a virtqueue directly, reduce the performance

Re: [PATCH] vdpa: bypass waking up vhost_woker for vdpa vq kick

2020-05-26 Thread kbuild test robot
Hi Zhu, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on vhost/linux-next] [also build test WARNING on v5.7-rc7 next-20200526] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base'

[PATCH] vdpa: bypass waking up vhost_woker for vdpa vq kick

2020-05-25 Thread Zhu Lingshan
Standard vhost devices rely on waking up a vhost_worker to kick a virtquque. However vdpa devices have hardware backends, so it does not need this waking up routin. In this commit, vdpa device will kick a virtqueue directly, reduce the performance overhead caused by waking up a vhost_woker.