[dpdk-dev] [DPDK] [PATCH 1/3] qat: remove atomics
De Lara Guarch, Pablo
pablo.de.lara.guarch at intel.com
Mon Sep 4 16:39:56 CEST 2017
> -----Original Message-----
> From: Burakov, Anatoly
> Sent: Friday, August 25, 2017 10:31 AM
> To: dev at dpdk.org
> Cc: Griffin, John <john.griffin at intel.com>; Trahe, Fiona
> <fiona.trahe at intel.com>; Jain, Deepak K <deepak.k.jain at intel.com>; De
> Lara Guarch, Pablo <pablo.de.lara.guarch at intel.com>; Burakov, Anatoly
> <anatoly.burakov at intel.com>
> Subject: [DPDK] [PATCH 1/3] qat: remove atomics
Title should be "crypto/qat: remove..."
>
> From: "Burakov, Anatoly" <anatoly.burakov at intel.com>
>
> Replacing atomics in the qat driver with simple 16-bit integers for number
> of inflight packets.
>
> This adds a new limitation to the QAT driver: each queue pair is now
> explicitly single-threaded.
>
> Signed-off-by: Burakov, Anatoly <anatoly.burakov at intel.com>
> ---
> doc/guides/cryptodevs/qat.rst | 1 +
> doc/guides/rel_notes/release_17_11.rst | 6 ++++++
> drivers/crypto/qat/qat_crypto.c | 12 +++++-------
> drivers/crypto/qat/qat_crypto.h | 2 +-
> drivers/crypto/qat/qat_qp.c | 4 ++--
> 5 files changed, 15 insertions(+), 10 deletions(-)
>
...
> diff --git a/doc/guides/rel_notes/release_17_11.rst
> b/doc/guides/rel_notes/release_17_11.rst
> index 170f4f9..67b6f68 100644
> --- a/doc/guides/rel_notes/release_17_11.rst
> +++ b/doc/guides/rel_notes/release_17_11.rst
> @@ -41,6 +41,12 @@ New Features
> Also, make sure to start the actual text at the margin.
>
> =========================================================
>
> +* **Updated qat crypto PMD.**
"qat" should be in capital letters.
> +
> + Performance enhancements:
> +
> + * Removed atomics from the internal queue pair structure.
> +
>
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