linux-kernel - Re: [PATCH 4/4] PCI/sysfs: Allow userspace to query and set device reset mechanism

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Message-ID: <20210319155711.GA234744@bjorn-Precision-5520>
Date:   Fri, 19 Mar 2021 10:57:11 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     "Enrico Weigelt, metux IT consult" <info@...ux.net>,
        Alex Williamson <alex.williamson@...hat.com>,
        Amey Narkhede <ameynarkhede03@...il.com>,
        raphael.norwitz@...anix.com, linux-pci@...r.kernel.org,
        bhelgaas@...gle.com, linux-kernel@...r.kernel.org,
        alay.shah@...anix.com, suresh.gumpula@...anix.com,
        shyam.rajendran@...anix.com, felipe@...anix.com
Subject: Re: [PATCH 4/4] PCI/sysfs: Allow userspace to query and set device
 reset mechanism

On Fri, Mar 19, 2021 at 02:59:47PM +0200, Leon Romanovsky wrote:
> On Thu, Mar 18, 2021 at 07:34:56PM +0100, Enrico Weigelt, metux IT consult wrote:
> > On 18.03.21 18:22, Leon Romanovsky wrote:
> > 
> > > Which email client do you use?  Your responses are grouped as
> > > one huge block without any chance to respond to you on specific
> > > point or answer to your question.
> > 
> > I'm reading this thread in Tbird, and threading / quoting all
> > looks nice.
> 
> I'm not talking about threading or quoting but about response
> itself.  See it here
> https://lore.kernel.org/lkml/20210318103935.2ec32302@omen.home.shazbot.org/
> Alex's response is one big chunk without any separations to
> paragraphs.

Don't make this harder than it needs to be.  I think it's totally
acceptable to just split Alex's text where you need to respond.  For
example, Alex wrote this:

  vfio-pci uses the internal kernel API, ie. the variants of
  pci_reset_function(), which is the same interface used by the existing
  sysfs reset mechanism.  This proposed configuration of the reset method
  would affect any driver using that same core infrastructure and from my
  perspective that's really the goal.  ...

If I wanted to respond to the first sentence, I would just do this:

aw> vfio-pci uses the internal kernel API, ie. the variants of
aw> pci_reset_function(), which is the same interface used by the existing
aw> sysfs reset mechanism.  

I would write my response to the above here.  The rest of the quote
continues on below.  If the rest of Alex's message isn't relevant to
my response, I would remove it completely.

aw> This proposed configuration of the reset method
aw> would affect any driver using that same core infrastructure and from my
aw> perspective that's really the goal.  ...

Bjorn