From patchwork Thu Jan 17 18:23:19 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fiona Trahe X-Patchwork-Id: 49928 X-Patchwork-Delegate: gakhil@marvell.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 780BC324D; Thu, 17 Jan 2019 19:23:25 +0100 (CET) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by dpdk.org (Postfix) with ESMTP id B9BEB2D13; Thu, 17 Jan 2019 19:23:23 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Jan 2019 10:23:22 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,489,1539673200"; d="scan'208";a="109063708" Received: from sivswdev09.ir.intel.com (HELO localhost.localdomain) ([10.237.217.48]) by orsmga006.jf.intel.com with ESMTP; 17 Jan 2019 10:23:21 -0800 From: Fiona Trahe To: dev@dpdk.org Cc: pablo.de.lara.guarch@intel.com, fiona.trahe@intel.com, akhil.goyal@nxp.com, arkadiuszx.kusztal@intel.com, stable@dpdk.org Date: Thu, 17 Jan 2019 18:23:19 +0000 Message-Id: <1547749399-1975-1-git-send-email-fiona.trahe@intel.com> X-Mailer: git-send-email 1.7.0.7 Subject: [dpdk-dev] [PATCH] doc/qat: add GCM AAD limitation X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Add limitation that AAD buffer must be padded with zeroes in GCM case. Fixes: d4f44265a1d7 ("doc: add limitation of AAD size to QAT guide") Cc: stable@dpdk.org Signed-off-by: Fiona Trahe Acked-by: Arek Kusztal --- doc/guides/cryptodevs/qat.rst | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/doc/guides/cryptodevs/qat.rst b/doc/guides/cryptodevs/qat.rst index 9fb9f01..3ca70bc 100644 --- a/doc/guides/cryptodevs/qat.rst +++ b/doc/guides/cryptodevs/qat.rst @@ -79,10 +79,9 @@ Limitations * SNOW 3G (UIA2) and ZUC (EIA3) supported only if hash length and offset fields are byte-multiple. * No BSD support as BSD QAT kernel driver not available. * ZUC EEA3/EIA3 is not supported by dh895xcc devices -* Maximum additional authenticated data (AAD) for GCM is 240 bytes long. +* Maximum additional authenticated data (AAD) for GCM is 240 bytes long and must be passed to the device in a buffer rounded up to the nearest block-size multiple (x16) and padded with zeros. * Queue pairs are not thread-safe (that is, within a single queue pair, RX and TX from different lcores is not supported). - Extra notes on KASUMI F9 ~~~~~~~~~~~~~~~~~~~~~~~~