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

Subject: Re: [PATCH v1 1/2] PCI: ATS: Add function to check ATS page aligned request status.
From: Sinan Kaya <okaya@xxxxxxxxxx>
Date: Thu, 7 Feb 2019 20:58:39 -0500
Cc: linux-pci@xxxxxxxxxxxxxxx, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Ashok Raj <ashok.raj@xxxxxxxxx>, Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>, Keith Busch <keith.busch@xxxxxxxxx>
In-reply-to: <a5a29eee-2e33-ba0c-67a6-69983fd0796d@linux.intel.com>
References: <cover.1549478584.git.sathyanarayanan.kuppuswamy@linux.intel.com> <91bfae8b1d4b424219e3ce3c1fc03559c73f1ae7.1549478584.git.sathyanarayanan.kuppuswamy@linux.intel.com> <5d55e369-355f-b710-0594-03465aa985da@kernel.org> <a5a29eee-2e33-ba0c-67a6-69983fd0796d@linux.intel.com>
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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.

Follow-Ups:
- Re: [PATCH v1 1/2] PCI: ATS: Add function to check ATS page aligned request status.
  - From: sathyanarayanan kuppuswamy

References:
- [PATCH v1 0/2] Add page alignment check in Intel IOMMU.
  - From: sathyanarayanan . kuppuswamy
- [PATCH v1 1/2] PCI: ATS: Add function to check ATS page aligned request status.
  - From: sathyanarayanan . kuppuswamy
- Re: [PATCH v1 1/2] PCI: ATS: Add function to check ATS page aligned request status.
  - From: Sinan Kaya
- Re: [PATCH v1 1/2] PCI: ATS: Add function to check ATS page aligned request status.
  - From: sathyanarayanan kuppuswamy