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: <20180919090526.s3ahnemrt2ik2tx3@mac.bytemobile.com>
Date:   Wed, 19 Sep 2018 11:05:26 +0200
From:   Roger Pau Monné <roger.pau@...rix.com>
To:     Boris Ostrovsky <boris.ostrovsky@...cle.com>
CC:     George Dunlap <George.Dunlap@...rix.com>,
        Pasi Kärkkäinen <pasik@....fi>,
        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 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.

Thanks, Roger.