From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from na01-bn1-obe.outbound.protection.outlook.com (mail-bn1bn0109.outbound.protection.outlook.com [157.56.110.109]) by dpdk.org (Postfix) with ESMTP id 8206F11C5 for ; Wed, 4 Mar 2015 08:23:13 +0100 (CET) Received: from BN3PR0301CA0081.namprd03.prod.outlook.com (25.160.152.177) by BN1PR0301MB0675.namprd03.prod.outlook.com (25.160.171.24) with Microsoft SMTP Server (TLS) id 15.1.93.16; Wed, 4 Mar 2015 07:23:12 +0000 Received: from BN1AFFO11FD035.protection.gbl (2a01:111:f400:7c10::100) by BN3PR0301CA0081.outlook.office365.com (2a01:111:e400:401e::49) with Microsoft SMTP Server (TLS) id 15.1.99.9 via Frontend Transport; Wed, 4 Mar 2015 07:23:12 +0000 Received: from az84smr01.freescale.net (192.88.158.2) by BN1AFFO11FD035.mail.protection.outlook.com (10.58.52.159) with Microsoft SMTP Server (TLS) id 15.1.99.6 via Frontend Transport; Wed, 4 Mar 2015 07:23:11 +0000 Received: from localhost (rock.ap.freescale.net [10.193.20.106]) by az84smr01.freescale.net (8.14.3/8.14.0) with ESMTP id t247N98o001558; Wed, 4 Mar 2015 00:23:09 -0700 From: To: Date: Wed, 4 Mar 2015 14:34:12 +0800 Message-ID: <1425450852-24837-1-git-send-email-xuelin.shi@freescale.com> X-Mailer: git-send-email 1.8.4 X-EOPAttributedMessage: 0 Received-SPF: Fail (protection.outlook.com: domain of freescale.com does not designate 192.88.158.2 as permitted sender) receiver=protection.outlook.com; client-ip=192.88.158.2; helo=az84smr01.freescale.net; Authentication-Results: spf=fail (sender IP is 192.88.158.2) smtp.mailfrom=b29237@freescale.com; freescale.mail.onmicrosoft.com; dkim=none (message not signed) header.d=none; X-Forefront-Antispam-Report: CIP:192.88.158.2; CTRY:US; IPV:NLI; EFV:NLI; SFV:NSPM; SFS:(10019020)(6009001)(339900001)(86152002)(87936001)(47776003)(50986999)(85426001)(77156002)(62966003)(57986006)(6806004)(19580405001)(19580395003)(76506005)(36756003)(50466002)(50226001)(48376002)(110136001)(2351001)(229853001)(46102003)(92566002)(33646002)(77096005)(104016003)(86362001)(105606002)(106466001); DIR:OUT; SFP:1102; SCL:1; SRVR:BN1PR0301MB0675; H:az84smr01.freescale.net; FPR:; SPF:Fail; MLV:sfv; LANG:en; MIME-Version: 1.0 Content-Type: text/plain X-Microsoft-Antispam: UriScan:; X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:;SRVR:BN1PR0301MB0675; X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:; X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:(601004)(5005006); SRVR:BN1PR0301MB0675; X-Forefront-PRVS: 0505147DDB X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:; SRVR:BN1PR0301MB0675; X-OriginatorOrg: freescale.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Mar 2015 07:23:11.2845 (UTC) X-MS-Exchange-CrossTenant-Id: 710a03f5-10f6-4d38-9ff4-a80b81da590d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=710a03f5-10f6-4d38-9ff4-a80b81da590d; Ip=[192.88.158.2] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN1PR0301MB0675 Cc: dev@dpdk.org Subject: [dpdk-dev] [PATCH] librte_lpm: define tbl entry reversely for big endian 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: , X-List-Received-Date: Wed, 04 Mar 2015 07:23:14 -0000 From: Xuelin Shi This module uses type conversion between struct and int. Also truncation and comparison is used with this int. It is not safe for different endian arch. Add ifdef for big endian struct to fix this issue. Signed-off-by: Xuelin Shi --- lib/librte_lpm/rte_lpm.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/lib/librte_lpm/rte_lpm.h b/lib/librte_lpm/rte_lpm.h index 1af150c..08a2859 100644 --- a/lib/librte_lpm/rte_lpm.h +++ b/lib/librte_lpm/rte_lpm.h @@ -96,6 +96,7 @@ extern "C" { /** Bitmask used to indicate successful lookup */ #define RTE_LPM_LOOKUP_SUCCESS 0x0100 +#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN /** @internal Tbl24 entry structure. */ struct rte_lpm_tbl24_entry { /* Stores Next hop or group index (i.e. gindex)into tbl8. */ @@ -117,6 +118,24 @@ struct rte_lpm_tbl8_entry { uint8_t valid_group :1; /**< Group validation flag. */ uint8_t depth :6; /**< Rule depth. */ }; +#else +struct rte_lpm_tbl24_entry { + uint8_t depth :6; + uint8_t ext_entry :1; + uint8_t valid :1; + union { + uint8_t tbl8_gindex; + uint8_t next_hop; + }; +}; + +struct rte_lpm_tbl8_entry { + uint8_t depth :6; + uint8_t valid_group :1; + uint8_t valid :1; + uint8_t next_hop; +}; +#endif /** @internal Rule structure. */ struct rte_lpm_rule { -- 1.9.1