From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pablo de Lara Subject: [PATCH 05/13] cryptodev: add crypto op helper macros Date: Sun, 28 May 2017 22:05:14 +0100 Message-ID: <1496005522-134934-6-git-send-email-pablo.de.lara.guarch@intel.com> References: <1496005522-134934-1-git-send-email-pablo.de.lara.guarch@intel.com> Cc: dev@dpdk.org, Pablo de Lara To: declan.doherty@intel.com, akhil.goyal@nxp.com, hemant.agrawal@nxp.com, zbigniew.bodek@caviumnetworks.com, jerin.jacob@caviumnetworks.com Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by dpdk.org (Postfix) with ESMTP id 203AA7CB5 for ; Sun, 28 May 2017 23:05:13 +0200 (CEST) In-Reply-To: <1496005522-134934-1-git-send-email-pablo.de.lara.guarch@intel.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" In order to facilitate the access to the private data, after the crypto operation, two new macros have been implemented: - rte_crypto_op_ctod_offset(c,t,o), which returns a pointer to "o" bytes after the start of the crypto operation - rte_crypto_op_ctophys_offset(c, o), which returns the physical address of the data "o" bytes after the start of the crypto operation Signed-off-by: Pablo de Lara --- lib/librte_cryptodev/rte_cryptodev.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/lib/librte_cryptodev/rte_cryptodev.h b/lib/librte_cryptodev/rte_cryptodev.h index 88aeb87..bd09176 100644 --- a/lib/librte_cryptodev/rte_cryptodev.h +++ b/lib/librte_cryptodev/rte_cryptodev.h @@ -118,6 +118,35 @@ extern const char **rte_cyptodev_names; #define CDEV_PMD_TRACE(...) (void)0 #endif + + +/** + * A macro that points to an offset into the crypto operation structure. + * + * The returned pointer is cast to type t. + * + * @param c + * The crypto operation. + * @param o + * The offset into the crypto operation. + * @param t + * The type to cast the result into. + */ +#define rte_crypto_op_ctod_offset(c, t, o) \ + ((t)((char *)(c) + (o))) + +/** + * A macro that returns the physical address that points + * to an offset of the start of the crypto operation + * + * @param c + * The crypto operation. + * @param o + * The offset into the data to calculate address from. + */ +#define rte_crypto_op_ctophys_offset(c, o) \ + (phys_addr_t)((c)->phys_addr + (o)) + /** * Crypto parameters range description */ -- 2.7.4