linux-kernel - Re: [PATCH] vhost: introduce vDPA based backend

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Date:   Fri, 31 Jan 2020 13:54:04 +0800
From:   Tiwei Bie <tiwei.bie@...el.com>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     mst@...hat.com, jasowang@...hat.com, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
        netdev@...r.kernel.org, shahafs@...lanox.com, jgg@...lanox.com,
        rob.miller@...adcom.com, haotian.wang@...ive.com,
        eperezma@...hat.com, lulu@...hat.com, parav@...lanox.com,
        hch@...radead.org, jiri@...lanox.com, hanand@...inx.com,
        mhabets@...arflare.com, maxime.coquelin@...hat.com,
        lingshan.zhu@...el.com, dan.daly@...el.com,
        cunming.liang@...el.com, zhihong.wang@...el.com
Subject: Re: [PATCH] vhost: introduce vDPA based backend

On Thu, Jan 30, 2020 at 09:12:57PM -0800, Randy Dunlap wrote:
> On 1/30/20 7:56 PM, Randy Dunlap wrote:
> > Hi,
> > 
> > On 1/30/20 7:36 PM, Tiwei Bie wrote:
> >> diff --git a/drivers/vhost/Kconfig b/drivers/vhost/Kconfig
> >> index f21c45aa5e07..13e6a94d0243 100644
> >> --- a/drivers/vhost/Kconfig
> >> +++ b/drivers/vhost/Kconfig
> >> @@ -34,6 +34,18 @@ config VHOST_VSOCK
> >>  	To compile this driver as a module, choose M here: the module will be called
> >>  	vhost_vsock.
> >>  
> >> +config VHOST_VDPA
> >> +	tristate "Vhost driver for vDPA based backend"
> 
> oops, missed this one:
> 	                           vDPA-based

Will fix. Thanks!

> 
> >> +	depends on EVENTFD && VDPA
> >> +	select VHOST
> >> +	default n
> >> +	---help---
> >> +	This kernel module can be loaded in host kernel to accelerate
> >> +	guest virtio devices with the vDPA based backends.
> > 
> > 	                              vDPA-based
> > 
> >> +
> >> +	To compile this driver as a module, choose M here: the module
> >> +	will be called vhost_vdpa.
> >> +
> > 
> > The preferred Kconfig style nowadays is
> > (a) use "help" instead of "---help---"
> > (b) indent the help text with one tab + 2 spaces
> > 
> > and don't use "default n" since that is already the default.
> > 
> >>  config VHOST
> >>  	tristate
> >>          depends on VHOST_IOTLB
> > 
> > thanks.
> > 
> 
> 
> -- 
> ~Randy
>