From patchwork Thu Feb 1 09:30:05 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Gujjar, Abhinandan S" X-Patchwork-Id: 34804 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 2B35E2F7D; Thu, 1 Feb 2018 10:30:12 +0100 (CET) Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by dpdk.org (Postfix) with ESMTP id BBD78101B for ; Thu, 1 Feb 2018 10:30:10 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 01 Feb 2018 01:30:10 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,443,1511856000"; d="scan'208";a="170832245" Received: from unknown (HELO localhost.localdomain) ([10.224.122.195]) by orsmga004.jf.intel.com with ESMTP; 01 Feb 2018 01:30:07 -0800 From: Abhinandan Gujjar To: declan.doherty@intel.com, akhil.goyal@nxp.com, pablo.de.lara.guarch@intel.com, Jerin.JacobKollanukkaran@cavium.com Cc: dev@dpdk.org, narender.vangati@intel.com, Abhinandan Gujjar , Nikhil Rao Date: Thu, 1 Feb 2018 15:00:05 +0530 Message-Id: <1517477405-169206-1-git-send-email-abhinandan.gujjar@intel.com> X-Mailer: git-send-email 1.9.1 Subject: [dpdk-dev] [RFC v3, 1/3] cryptodev: set private data for session-less mode 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" The application may want to store private data along with the rte_crypto_op that is transparent to the rte_cryptodev layer. For e.g., If an eventdev based application is submitting a crypto session-less operation and wants to indicate event information required to construct a new event that will be enqueued to eventdev after completion of the crypto operation. This patch provides a mechanism for the application to associate this information with the rte_crypto_op in session-less mode. Signed-off-by: Abhinandan Gujjar Signed-off-by: Nikhil Rao --- Notes: V3: 1. Added separate patch for session-less private data 2. Added more information on offset V2: 1. Removed enum rte_crypto_op_private_data_type 2. Corrected formatting lib/librte_cryptodev/rte_crypto.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/lib/librte_cryptodev/rte_crypto.h b/lib/librte_cryptodev/rte_crypto.h index 95cf861..2540426 100644 --- a/lib/librte_cryptodev/rte_crypto.h +++ b/lib/librte_cryptodev/rte_crypto.h @@ -84,8 +84,14 @@ struct rte_crypto_op { */ uint8_t sess_type; /**< operation session type */ + uint16_t private_data_offset; + /**< Offset to indicate start of private data (if any). The offset + * is counted from the start of the rte_crypto_op including IV. + * The private data may be used by the application to store + * information which should remain untouched in the library/driver + */ - uint8_t reserved[5]; + uint8_t reserved[3]; /**< Reserved bytes to fill 64 bits for future additions */ struct rte_mempool *mempool; /**< crypto operation mempool which operation is allocated from */