From: Matthew Garrett <mjg@redhat.com>
To: linux-kernel@vger.kernel.org
Subject: Disable ASPM on various devices
Date: Fri, 11 Nov 2011 11:05:05 -0500 [thread overview]
Message-ID: <1321027511-31229-1-git-send-email-mjg@redhat.com> (raw)
If the firmware has given us control of PCIe capabilities then it's valid
for an operating system to configure ASPM more aggressively than the
firmware did. A small number of devices object to this and exhibit various
failure modes. Windows provides a mechanism to disable ASPM in the driver,
indicated by the Needs=PciASPMOptOut statement in the .inf file. Trawling
through Windows drivers has indicated the following set of hardware that
disables ASPM in Windows but doesn't currently disable it in Linux. It makes
sense for us to mimic Windows in this situation.
next reply other threads:[~2011-11-11 16:05 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-11 16:05 Matthew Garrett [this message]
2011-11-11 16:05 ` [PATCH 1/6] net/ethernet/atl1c: Disable ASPM on various chipsets Matthew Garrett
2011-11-11 16:05 ` [PATCH 2/6] net/ethernet/atl1e: Disable ASPM Matthew Garrett
2011-11-11 16:05 ` [PATCH 3/6] net/ethernet/jme: " Matthew Garrett
2011-11-11 16:05 ` [PATCH 4/6] block/cciss: " Matthew Garrett
2011-11-11 16:05 ` [PATCH 5/6] scsi/hpsa: " Matthew Garrett
2011-11-11 16:05 ` [PATCH 6/6] infiniband/nes: " Matthew Garrett
2011-11-11 17:31 ` Roland Dreier
2011-11-11 19:27 ` Matthew Garrett
2011-11-11 19:37 ` Roland Dreier
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=1321027511-31229-1-git-send-email-mjg@redhat.com \
--to=mjg@redhat.com \
--cc=linux-kernel@vger.kernel.org \
/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
all inboxes | Powered by JetHome®