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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Date:   Tue, 18 Sep 2018 14:09:53 -0400
From:   Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:     George Dunlap <George.Dunlap@...rix.com>,
        Pasi Kärkkäinen <pasik@....fi>,
        Roger Pau Monne <roger.pau@...rix.com>
Cc:     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 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?


>>
>> George asked for some clarifications:
>> https://lists.xen.org/archives/html/xen-devel/2017-12/msg01044.html
>> https://lists.xen.org/archives/html/xen-devel/2017-12/msg01116.html
> Right, the description of the patch didn’t actually tell you what was going on.  It should have said something like, “xl currently attempts to reset a device using X; but that’s never been implemented in Linux.  Instead, use Y, which [is better for whatever reason]”.

Yes, the description can be tightened a bit ;-)

-boris