linux-kernel - Re: [PATCH 4/5] virtio: introduce a vDPA based transport

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Message-ID: <e71bdbfe-559c-e881-26d4-03080cee42ed@infradead.org>
Date:   Thu, 16 Jan 2020 20:10:08 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Jason Wang <jasowang@...hat.com>, mst@...hat.com,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org
Cc:     tiwei.bie@...el.com, jgg@...lanox.com, maxime.coquelin@...hat.com,
        cunming.liang@...el.com, zhihong.wang@...el.com,
        rob.miller@...adcom.com, xiao.w.wang@...el.com,
        haotian.wang@...ive.com, lingshan.zhu@...el.com,
        eperezma@...hat.com, lulu@...hat.com, parav@...lanox.com,
        kevin.tian@...el.com, stefanha@...hat.com, hch@...radead.org,
        aadam@...hat.com, jakub.kicinski@...ronome.com, jiri@...lanox.com,
        shahafs@...lanox.com, hanand@...inx.com, mhabets@...arflare.com
Subject: Re: [PATCH 4/5] virtio: introduce a vDPA based transport

Hi,

On 1/16/20 4:42 AM, Jason Wang wrote:
> diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig
> index 9c4fdb64d9ac..b4276999d17d 100644
> --- a/drivers/virtio/Kconfig
> +++ b/drivers/virtio/Kconfig
> @@ -43,6 +43,19 @@ config VIRTIO_PCI_LEGACY
>  
>  	  If unsure, say Y.
>  
> +config VIRTIO_VDPA
> +	tristate "vDPA driver for virtio devices"
> +	depends on VDPA && VIRTIO
> +	default n
> +	help
> +	  This driver provides support for virtio based paravirtual

	                                   virtio-based

> +	  device driver over vDPA bus. For this to be useful, you need
> +	  an appropriate vDPA device implementation that operates on a
> +          physical device to allow the datapath of virtio to be

use tab + 2 spaces above for indentation, not lots of spaces.

> +	  offloaded to hardware.
> +
> +	  If unsure, say M.
> +
>  config VIRTIO_PMEM
>  	tristate "Support for virtio pmem driver"
>  	depends on VIRTIO


-- 
~Randy