linux-kernel - Re: [PATCH 1/2] PCI/DPC: Add 'nodpc' parameter

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Message-ID: <1534434641.17819.27.camel@intel.com>
Date:   Thu, 16 Aug 2018 15:50:47 +0000
From:   "Derrick, Jonathan" <jonathan.derrick@...el.com>
To:     "willy@...radead.org" <willy@...radead.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "okaya@...nel.org" <okaya@...nel.org>,
        "liudongdong3@...wei.com" <liudongdong3@...wei.com>,
        "helgaas@...nel.org" <helgaas@...nel.org>,
        "poza@...eaurora.org" <poza@...eaurora.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "Busch, Keith" <keith.busch@...el.com>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>
Subject: Re: [PATCH 1/2] PCI/DPC: Add 'nodpc' parameter

On Thu, 2018-08-16 at 08:49 -0700, Matthew Wilcox wrote:
> On Wed, Aug 15, 2018 at 03:26:39PM -0600, Jon Derrick wrote:
> > Some users may want to disable downstream port containment (DPC),
> > so
> > give them this option
> 
> Is it possible they might only want to disable DPC on a subset of the
> hierarchy rather than globally?

Absolutely. I was hoping Logan's pci dev_str would land because I have
a few others I want to convert to that api for granular tuning
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