linux-kernel - Re: [PATCH 6/7] crypto: add sdmdev support to Hisilicon QM

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Message-ID: <20180906090931.GD230707@Turing-Arch-b>
Date:   Thu, 6 Sep 2018 17:09:31 +0800
From:   Kenneth Lee <liguozhu@...ilicon.com>
To:     Randy Dunlap <rdunlap@...radead.org>
CC:     Kenneth Lee <nek.in.cn@...il.com>,
        Jonathan Corbet <corbet@....net>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        Joerg Roedel <joro@...tes.org>,
        Alex Williamson <alex.williamson@...hat.com>,
        Hao Fang <fanghao11@...wei.com>,
        Zhou Wang <wangzhou1@...ilicon.com>,
        Zaibo Xu <xuzaibo@...wei.com>,
        Philippe Ombredanne <pombredanne@...b.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        <linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-crypto@...r.kernel.org>, <iommu@...ts.linux-foundation.org>,
        <kvm@...r.kernel.org>, <linux-accelerators@...ts.ozlabs.org>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Sanjay Kumar <sanjay.k.kumar@...el.com>, <linuxarm@...wei.com>
Subject: Re: [PATCH 6/7] crypto: add sdmdev support to Hisilicon QM

On Sun, Sep 02, 2018 at 07:19:03PM -0700, Randy Dunlap wrote:
> Date: Sun, 2 Sep 2018 19:19:03 -0700
> From: Randy Dunlap <rdunlap@...radead.org>
> To: Kenneth Lee <nek.in.cn@...il.com>, Jonathan Corbet <corbet@....net>,
>  Herbert Xu <herbert@...dor.apana.org.au>, "David S . Miller"
>  <davem@...emloft.net>, Joerg Roedel <joro@...tes.org>, Alex Williamson
>  <alex.williamson@...hat.com>, Kenneth Lee <liguozhu@...ilicon.com>, Hao
>  Fang <fanghao11@...wei.com>, Zhou Wang <wangzhou1@...ilicon.com>, Zaibo Xu
>  <xuzaibo@...wei.com>, Philippe Ombredanne <pombredanne@...b.com>, Greg
>  Kroah-Hartman <gregkh@...uxfoundation.org>, Thomas Gleixner
>  <tglx@...utronix.de>, linux-doc@...r.kernel.org,
>  linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org,
>  iommu@...ts.linux-foundation.org, kvm@...r.kernel.org,
>  linux-accelerators@...ts.ozlabs.org, Lu Baolu <baolu.lu@...ux.intel.com>,
>  Sanjay Kumar <sanjay.k.kumar@...el.com>
> CC: linuxarm@...wei.com
> Subject: Re: [PATCH 6/7] crypto: add sdmdev support to Hisilicon QM
> User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101
>  Thunderbird/52.9.1
> Message-ID: <46e57b2b-756e-e256-5b3c-30749d865512@...radead.org>
> 
> On 09/02/2018 05:52 PM, Kenneth Lee wrote:
> > diff --git a/drivers/crypto/hisilicon/Kconfig b/drivers/crypto/hisilicon/Kconfig
> > index 1d155708cd69..b85fab48fdab 100644
> > --- a/drivers/crypto/hisilicon/Kconfig
> > +++ b/drivers/crypto/hisilicon/Kconfig
> > @@ -17,6 +17,16 @@ config CRYPTO_DEV_HISI_SEC
> >  	  To compile this as a module, choose M here: the module
> >  	  will be called hisi_sec.
> >  
> > +config CRYPTO_DEV_HISI_SDMDEV
> > +	bool "Enable SDMDEV interface"
> > +	depends on CRYPTO_DEV_HISILICON
> > +	select VFIO_SDMDEV
> > +	help
> > +	  Enable this enable the SDMDEV, "shared IOMMU Domain Mediated Device"
> 
> At a minimum:
> 	  Enable this to enable the SDMDEV,
> 
> although that could be done better.  Maybe just:
> 	  Enable the SDMDEV "shared IOMMU Domain Mediated Device"
> 
> 	  
> > +	  interface for all Hisilicon accelerators if they can. The SDMDEV
> 
> probably drop "if they can":          accelerators.  The SDMDEV interface
> 
> > +	  enable the WarpDrive user space accelerator driver to access the
> 
> 	  enables

Thank you, will change them all in the coming version.

> 
> > +	  hardware function directly.
> > +
> 
> 
> -- 
> ~Randy

-- 
			-Kenneth(Hisilicon)

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