All of lore.kernel.org
 help / color / mirror / Atom feed
From: Chris Friesen <chris.friesen@windriver.com>
To: intel-wired-lan@osuosl.org
Subject: [Intel-wired-lan] PCI ACS quirk for X710/XL710?
Date: Tue, 1 Dec 2015 10:07:48 -0600	[thread overview]
Message-ID: <565DC5D4.70300@windriver.com> (raw)

Hi all,

The three of you in the "to" list were involved with adding commits d748804 and 
100ebb2 to address the fact that these multi-port NICs will not do peer-to-peer 
between functions, but do not report this via ACS.

We've got an X710 device (PCI device 0x1572, driver version 1.3.1-k, firmware 
4.40) and we're seeing all the ports being assigned to the same IOMMU group.

I'm guessing that this is due to a lack of ACS, and that it would be valid to 
add the X710/XL710 PCI IDs to the pci_dev_acs_enabled table.  Could someone from 
Intel confirm this?

Assuming such a quirk is needed, do we have a suitable list of device IDs?

Thanks,
Chris

             reply	other threads:[~2015-12-01 16:07 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-01 16:07 Chris Friesen [this message]
2015-12-01 16:19 ` [Intel-wired-lan] PCI ACS quirk for X710/XL710? Chris Friesen
2015-12-01 17:57   ` Alex Williamson
2015-12-01 19:31     ` Chris Friesen
2015-12-02 15:21       ` Alex Williamson
2015-12-02 15:37         ` Chris Friesen

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=565DC5D4.70300@windriver.com \
    --to=chris.friesen@windriver.com \
    --cc=intel-wired-lan@osuosl.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.