linux-pci.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Bjorn Helgaas <bhelgaas@google.com>
To: Wolfgang Denk <wd@denx.de>, Shaohua Li <shli@kernel.org>
Cc: "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>
Subject: Re: VIA chipset with Root Port under a bridge
Date: Thu, 22 Aug 2013 15:49:24 -0600	[thread overview]
Message-ID: <CAErSpo49W9iYWUfVRCALr9Nkvuzs38MwzNUAXLgr91BRiRFtFQ@mail.gmail.com> (raw)
In-Reply-To: <CAErSpo53GpzdinvmQNX=DfJSsTUOzKng6LT1jrDSM8aU1ZUJiA@mail.gmail.com>

[replace Shaohua's dead Intel address with @kernel.org address; please
reply to this, not the original]

On Thu, Aug 22, 2013 at 3:47 PM, Bjorn Helgaas <bhelgaas@google.com> wrote:
> Shaohua, your commit 8e822df700 references a VIA chipset with a Root
> Port under a bridge, and that commit adds a special case to disable
> ASPM for that situation.
>
> I know this is pretty old (the commit is from 2009), but do you have
> any more details about that system?  A pointer to the original problem
> report, lspci output, dmesg output, etc.?
>
> I'm concerned because other parts of PCI make assumptions about Root
> Port topology, e.g., in MPS configuration, and we might need to make
> similar changes elsewhere.
>
> Bjorn

  reply	other threads:[~2013-08-22 21:49 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-22 21:47 VIA chipset with Root Port under a bridge Bjorn Helgaas
2013-08-22 21:49 ` Bjorn Helgaas [this message]
2013-08-23  1:06   ` Shaohua Li
2013-08-23 21:18     ` Wolfgang Denk
  -- strict thread matches above, loose matches on Subject: below --
2013-09-06 13:07 Wolfgang Denk
2013-09-06 15:17 ` Bjorn Helgaas

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAErSpo49W9iYWUfVRCALr9Nkvuzs38MwzNUAXLgr91BRiRFtFQ@mail.gmail.com \
    --to=bhelgaas@google.com \
    --cc=linux-pci@vger.kernel.org \
    --cc=shli@kernel.org \
    --cc=wd@denx.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).