From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chris Friesen <chris.friesen@windriver.com>
Date: Tue, 1 Dec 2015 10:07:48 -0600
Subject: [Intel-wired-lan] PCI ACS quirk for X710/XL710?
Message-ID: <565DC5D4.70300@windriver.com>
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To: intel-wired-lan@osuosl.org
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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