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doc: add VT-d/iommu settings for QAT

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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: Deepak Kumar Jain <deepak.k.jain@intel.com>
Acked-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
This commit is contained in:
Fiona Trahe 2016-10-26 18:23:31 +01:00 committed by Thomas Monjalon
parent dab1d47552
commit a49342abbb
1 changed files with 9 additions and 4 deletions
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13
doc/guides/cryptodevs/qat.rst
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@ -77,7 +77,6 @@ Limitations
* Hash only is not supported except SNOW 3G UIA2 and KASUMI F9. * 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. * 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). * 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 (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. * 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. * No BSD support as BSD QAT kernel driver not available.
@ -201,7 +200,9 @@ The steps below assume you are:
* Running DPDK on a platform with one ``DH895xCC`` device. * Running DPDK on a platform with one ``DH895xCC`` device.
* On a kernel at least version 4.4. * 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:: Ensure the QAT driver is loaded on your system, by executing::
@ -260,7 +261,9 @@ The steps below assume you are:
* Running DPDK on a platform with one ``C62x`` device. * Running DPDK on a platform with one ``C62x`` device.
* On a kernel at least version 4.5. * 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:: Ensure the QAT driver is loaded on your system, by executing::
@ -304,7 +307,9 @@ The steps below assume you are:
* Running DPDK on a platform with one ``C3xxx`` device. * Running DPDK on a platform with one ``C3xxx`` device.
* On a kernel at least version 4.5. * 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:: Ensure the QAT driver is loaded on your system, by executing::