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From: Fiona Trahe <fiona.trahe@intel.com>
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>
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Subject: [dpdk-stable] [PATCH] doc/qat: add GCM AAD limitation
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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 <fiona.trahe@intel.com>
---
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
~~~~~~~~~~~~~~~~~~~~~~~~
--
1.7.0.7