[dpdk-dev,v2] doc/guides: add more info about VT-d/iommu settings
Commit Message
Add more information about VT-d/iommu settings for QAT PMD.
Remove limitation indicating QAT driver is not performance tuned.
Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>
---
v2:
clarified commit message
doc/guides/cryptodevs/qat.rst | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
Comments
> -----Original Message-----
> From: Trahe, Fiona
> Sent: Wednesday, October 26, 2016 6:24 PM
> To: dev@dpdk.org
> Cc: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>; Trahe, Fiona
> <fiona.trahe@intel.com>; Griffin, John <john.griffin@intel.com>
> Subject: [PATCH v2] doc/guides: add more info about VT-d/iommu settings
>
> Add more information about VT-d/iommu settings for QAT PMD.
> Remove limitation indicating QAT driver is not performance tuned.
>
> Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>
> ---
>
> v2:
> clarified commit message
>
>
> doc/guides/cryptodevs/qat.rst | 7 +++----
> 1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/doc/guides/cryptodevs/qat.rst b/doc/guides/cryptodevs/qat.rst
> index 70bc2b1..bbe0b12 100644
> --- a/doc/guides/cryptodevs/qat.rst
> +++ b/doc/guides/cryptodevs/qat.rst
>
> --
> 2.5.0
Acked-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
> > Add more information about VT-d/iommu settings for QAT PMD.
> > Remove limitation indicating QAT driver is not performance tuned.
> >
> > Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>
> Acked-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
Wrapped lines and applied.
@@ -77,7 +77,6 @@ Limitations
* Hash only is not supported except SNOW 3G UIA2 and KASUMI F9.
* Cipher only is not supported except SNOW 3G UEA2, KASUMI F8 and 3DES.
* Only supports the session-oriented API implementation (session-less APIs are not supported).
-* Not performance tuned.
* SNOW 3G (UEA2) and KASUMI (F8) supported only if cipher length, cipher offset fields are byte-aligned.
* SNOW 3G (UIA2) and KASUMI (F9) supported only if hash length, hash offset fields are byte-aligned.
* No BSD support as BSD QAT kernel driver not available.
@@ -201,7 +200,7 @@ The steps below assume you are:
* Running DPDK on a platform with one ``DH895xCC`` device.
* On a kernel at least version 4.4.
-In BIOS ensure that SRIOV is enabled and VT-d is disabled.
+In BIOS ensure that SRIOV is enabled and either a) disable VT-d or b) enable VT-d and set ``"intel_iommu=on iommu=pt"`` in the grub file.
Ensure the QAT driver is loaded on your system, by executing::
@@ -260,7 +259,7 @@ The steps below assume you are:
* Running DPDK on a platform with one ``C62x`` device.
* On a kernel at least version 4.5.
-In BIOS ensure that SRIOV is enabled and VT-d is disabled.
+In BIOS ensure that SRIOV is enabled and either a) disable VT-d or b) enable VT-d and set ``"intel_iommu=on iommu=pt"`` in the grub file.
Ensure the QAT driver is loaded on your system, by executing::
@@ -304,7 +303,7 @@ The steps below assume you are:
* Running DPDK on a platform with one ``C3xxx`` device.
* On a kernel at least version 4.5.
-In BIOS ensure that SRIOV is enabled and VT-d is disabled.
+In BIOS ensure that SRIOV is enabled and either a) disable VT-d or b) enable VT-d and set ``"intel_iommu=on iommu=pt"`` in the grub file.
Ensure the QAT driver is loaded on your system, by executing::