linux-kernel - Re: [Xen-devel] [PATCH V3 2/2] Xen/PCIback: Implement PCI flr/slot/bus reset with 'reset' SysFS attribute

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Message-ID: <20181003155104.GH5318@reaktio.net>
Date:   Wed, 3 Oct 2018 18:51:04 +0300
From:   Pasi Kärkkäinen <pasik@....fi>
To:     Roger Pau Monné <roger.pau@...rix.com>
Cc:     Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        George Dunlap <George.Dunlap@...rix.com>,
        Jan Beulich <JBeulich@...e.com>,
        Juergen Gross <jgross@...e.com>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        xen-devel <xen-devel@...ts.xenproject.org>,
        Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Subject: Re: [Xen-devel] [PATCH V3 2/2] Xen/PCIback: Implement PCI
 flr/slot/bus reset with 'reset' SysFS attribute

On Wed, Sep 19, 2018 at 11:05:26AM +0200, Roger Pau Monné wrote:
> On Tue, Sep 18, 2018 at 02:09:53PM -0400, Boris Ostrovsky wrote:
> > On 9/18/18 5:32 AM, George Dunlap wrote:
> > >
> > >> On Sep 18, 2018, at 8:15 AM, Pasi Kärkkäinen <pasik@....fi> wrote:
> > >>
> > >> Hi,
> > >>
> > >> On Mon, Sep 17, 2018 at 02:06:02PM -0400, Boris Ostrovsky wrote:
> > >>> What about the toolstack changes? Have they been accepted? I vaguely
> > >>> recall there was a discussion about those changes but don't remember how
> > >>> it ended.
> > >>>
> > >> I don't think toolstack/libxl patch has been applied yet either.
> > >>
> > >>
> > >> "[PATCH V1 0/1] Xen/Tools: PCI reset using 'reset' SysFS attribute":
> > >> https://lists.xen.org/archives/html/xen-devel/2017-12/msg00664.html
> > >>
> > >> "[PATCH V1 1/1] Xen/libxl: Perform PCI reset using 'reset' SysFS attribute":
> > >> https://lists.xen.org/archives/html/xen-devel/2017-12/msg00663.html
> > 
> > 
> > Will this patch work for *BSD? Roger?
> 
> At least FreeBSD don't support pci-passthrough, so none of this works
> ATM. There's no sysfs on BSD, so much of what's in libxl_pci.c will
> have to be moved to libxl_linux.c when BSD support is added.
> 

Ok. That sounds like it's OK for the initial pci 'reset' implementation in xl/libxl to be linux-only.. 


Thanks,

-- Pasi


> Thanks, Roger.