linux-kernel - Re: [PATCH v1 1/2] PCI: ATS: Add function to check ATS page aligned request status.

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Message-ID: <32ec3293-28ea-8f0f-f801-0370b4cf0453@kernel.org>
Date:   Thu, 7 Feb 2019 20:58:39 -0500
From:   Sinan Kaya <okaya@...nel.org>
To:     sathyanarayanan.kuppuswamy@...ux.intel.com, bhelgaas@...gle.com,
        joro@...tes.org, dwmw2@...radead.org
Cc:     linux-pci@...r.kernel.org, iommu@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org, Ashok Raj <ashok.raj@...el.com>,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        Keith Busch <keith.busch@...el.com>
Subject: Re: [PATCH v1 1/2] PCI: ATS: Add function to check ATS page aligned
 request status.


On 2/7/2019 5:16 PM, sathyanarayanan kuppuswamy wrote:
>> If I remember this right, aligned request is only supported on ATS v1.1
>> but not supported on v1.0.
> Its added in v1.1.

This means that you should probably have some kind of version check
here.