From patchwork Wed Jun 3 23:10:21 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Ananyev, Konstantin" X-Patchwork-Id: 5117 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id E811B9A88; Thu, 4 Jun 2015 01:10:31 +0200 (CEST) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 6A2E55A8B for ; Thu, 4 Jun 2015 01:10:30 +0200 (CEST) Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga103.fm.intel.com with ESMTP; 03 Jun 2015 16:10:28 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,549,1427785200"; d="scan'208";a="502382565" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by FMSMGA003.fm.intel.com with ESMTP; 03 Jun 2015 16:10:27 -0700 Received: from sivswdev02.ir.intel.com (sivswdev02.ir.intel.com [10.237.217.46]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id t53NARet006151; Thu, 4 Jun 2015 00:10:27 +0100 Received: from sivswdev02.ir.intel.com (localhost [127.0.0.1]) by sivswdev02.ir.intel.com with ESMTP id t53NARYj005773; Thu, 4 Jun 2015 00:10:27 +0100 Received: (from kananye1@localhost) by sivswdev02.ir.intel.com with id t53NARdQ005769; Thu, 4 Jun 2015 00:10:27 +0100 From: Konstantin Ananyev To: dev@dpdk.org Date: Thu, 4 Jun 2015 00:10:21 +0100 Message-Id: <1433373024-5558-6-git-send-email-konstantin.ananyev@intel.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1433373024-5558-1-git-send-email-konstantin.ananyev@intel.com> References: <1433373024-5558-1-git-send-email-konstantin.ananyev@intel.com> Subject: [dpdk-dev] [PATCH 5/8] ACL: introduce RTE_ACL_MASKLEN_TO_BITMASK macro X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Introduce new RTE_ACL_MASKLEN_TO_BITMASK macro, that will be used in several places inside librte_acl and it's UT. Simplify iand cleanup build_trie() code a bit. Signed-off-by: Konstantin Ananyev --- lib/librte_acl/acl_bld.c | 16 +++------------- lib/librte_acl/rte_acl.h | 3 +++ 2 files changed, 6 insertions(+), 13 deletions(-) diff --git a/lib/librte_acl/acl_bld.c b/lib/librte_acl/acl_bld.c index 4bcf637..e144503 100644 --- a/lib/librte_acl/acl_bld.c +++ b/lib/librte_acl/acl_bld.c @@ -1262,19 +1262,9 @@ build_trie(struct acl_build_context *context, struct rte_acl_build_rule *head, * all higher bits. */ uint64_t mask; - - if (fld->mask_range.u32 == 0) { - mask = 0; - - /* - * arithmetic right shift for the length of - * the mask less the msb. - */ - } else { - mask = -1 << - (rule->config->defs[n].size * - CHAR_BIT - fld->mask_range.u32); - } + mask = RTE_ACL_MASKLEN_TO_BITMASK( + fld->mask_range.u32, + rule->config->defs[n].size); /* gen a mini-trie for this field */ merge = acl_gen_mask_trie(context, diff --git a/lib/librte_acl/rte_acl.h b/lib/librte_acl/rte_acl.h index 8d9bbe5..bd8f892 100644 --- a/lib/librte_acl/rte_acl.h +++ b/lib/librte_acl/rte_acl.h @@ -122,6 +122,9 @@ enum { #define RTE_ACL_INVALID_USERDATA 0 +#define RTE_ACL_MASKLEN_TO_BITMASK(v, s) \ +((v) == 0 ? (v) : (typeof(v))((uint64_t)-1 << ((s) * CHAR_BIT - (v)))) + /** * Miscellaneous data for ACL rule. */