linux-kernel - RE: [RFC PATCH 1/7] vfio/spimdev: Add documents for WarpDrive framework

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Date:   Thu, 2 Aug 2018 04:41:32 +0000
From:   "Tian, Kevin" <kevin.tian@...el.com>
To:     Kenneth Lee <liguozhu@...ilicon.com>
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-doc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        "iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "linux-accelerators@...ts.ozlabs.org" 
        <linux-accelerators@...ts.ozlabs.org>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        "Kumar, Sanjay K" <sanjay.k.kumar@...el.com>,
        "linuxarm@...wei.com" <linuxarm@...wei.com>
Subject: RE: [RFC PATCH 1/7] vfio/spimdev: Add documents for WarpDrive
 framework

> From: Kenneth Lee
> Sent: Thursday, August 2, 2018 12:23 PM
> 
> On Thu, Aug 02, 2018 at 03:14:38AM +0000, Tian, Kevin wrote:
> >
> > > From: Kenneth Lee
> > > Sent: Wednesday, August 1, 2018 6:22 PM
> > >
> > > From: Kenneth Lee <liguozhu@...ilicon.com>
> > >
> > > WarpDrive is a common user space accelerator framework.  Its main
> > > component
> > > in Kernel is called spimdev, Share Parent IOMMU Mediated Device. It
> >
> > Not sure whether "share parent IOMMU" is a good term here. better
> > stick to what capabity you bring to user space, instead of describing
> > internal trick...
> Agree. The "SPI" is also strongly hint to "Share Peripheral Interrupt" or
> "Serial
> Peripheral Interface". Personally I hate this name. But I cannot find a better
> one. In the user space, we can use a impassible name (WarpDrive). But
> kernel
> require a name point to its feature... maybe I should use "Process-Shared
> Mdev"
> in next version?

or maybe no new name. Just stick to mdev but introducing some
new attribute/capability to indicate such purpose.

Thanks
Kevin