From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <dev-bounces@dpdk.org>
Received: from dpdk.org (dpdk.org [92.243.14.124])
	by inbox.dpdk.org (Postfix) with ESMTP id B9720A04F1;
	Sun,  8 Dec 2019 12:34:03 +0100 (CET)
Received: from [92.243.14.124] (localhost [127.0.0.1])
	by dpdk.org (Postfix) with ESMTP id 43E46374E;
	Sun,  8 Dec 2019 12:34:02 +0100 (CET)
Received: from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com
 [67.231.156.173]) by dpdk.org (Postfix) with ESMTP id 5F17B3576
 for <dev@dpdk.org>; Sun,  8 Dec 2019 12:34:01 +0100 (CET)
Received: from pps.filterd (m0045851.ppops.net [127.0.0.1])
 by mx0b-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id
 xB8BVdGH006545; Sun, 8 Dec 2019 03:34:00 -0800
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com;
 h=from : to : cc :
 subject : date : message-id : mime-version : content-transfer-encoding :
 content-type; s=pfpt0818; bh=/EV1YCIuwvRPeQe/H0TR9OSM4w0rzyAG4EuxwAdgUgE=;
 b=qf/AXy+OKUIO1Syxa5oD9kbMLzfAG6B4+ud/Xbm58K1I9cJmv/t2ZI2eaCOafEoN5JiB
 3qNCZgazow6ruaFe7jEjoHO7LRnbwrzQusBkZUbC6Hkjsh3B+8OK1KVqWG0trHcp0Xw7
 eC72cjkmPn7QHbnyjWs3+8t4zJMZX7gFY8RSVJbXeY6TB9JKodWpcnoSFcrZNaeh+Mcg
 mRTpDQTJgcrTlup6xbWbGx0sviqMRmfdIPpHI4pNqCxMH8Dj20ZYomFDX3rcoEr7BO83
 wnJ4632AlQCIH80746qwptcX3QHKFf0OvjXHhu5iZniDCYM4pki0dpVyYzhO6ZuwM+e6 8g== 
Received: from sc-exch02.marvell.com ([199.233.58.182])
 by mx0b-0016f401.pphosted.com with ESMTP id 2wrcfptaus-1
 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT);
 Sun, 08 Dec 2019 03:33:59 -0800
Received: from SC-EXCH01.marvell.com (10.93.176.81) by SC-EXCH02.marvell.com
 (10.93.176.82) with Microsoft SMTP Server (TLS) id 15.0.1367.3; Sun, 8 Dec
 2019 03:33:57 -0800
Received: from maili.marvell.com (10.93.176.43) by SC-EXCH01.marvell.com
 (10.93.176.81) with Microsoft SMTP Server id 15.0.1367.3 via Frontend
 Transport; Sun, 8 Dec 2019 03:33:57 -0800
Received: from jerin-lab.marvell.com (jerin-lab.marvell.com [10.28.34.14])
 by maili.marvell.com (Postfix) with ESMTP id 9A1493F703F;
 Sun,  8 Dec 2019 03:33:56 -0800 (PST)
From: <jerinj@marvell.com>
To: <dev@dpdk.org>
CC: <thomas@monjalon.net>, <david.marchand@redhat.com>, Jerin Jacob
 <jerinj@marvell.com>
Date: Sun, 8 Dec 2019 17:04:11 +0530
Message-ID: <20191208113413.2179329-1-jerinj@marvell.com>
X-Mailer: git-send-email 2.24.0
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572
 definitions=2019-12-08_03:2019-12-05,2019-12-08 signatures=0
Subject: [dpdk-dev]  [PATCH 1/3] eal: introduce structure marker typedefs
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <https://mails.dpdk.org/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://mails.dpdk.org/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <https://mails.dpdk.org/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org
Sender: "dev" <dev-bounces@dpdk.org>

From: Jerin Jacob <jerinj@marvell.com>

Introduce EAL typedef for structure 1B, 2B, 4B, 8B alignment marking and
a generic marker for a point in a structure.

Signed-off-by: Jerin Jacob <jerinj@marvell.com>
---
 lib/librte_eal/common/include/rte_common.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/lib/librte_eal/common/include/rte_common.h b/lib/librte_eal/common/include/rte_common.h
index 459d082d1..9556299ba 100644
--- a/lib/librte_eal/common/include/rte_common.h
+++ b/lib/librte_eal/common/include/rte_common.h
@@ -335,6 +335,18 @@ typedef uint64_t phys_addr_t;
 typedef uint64_t rte_iova_t;
 #define RTE_BAD_IOVA ((rte_iova_t)-1)
 
+/*********** Structure alignment markers ********/
+
+/** Generic marker for a point in a structure. */
+__extension__ typedef void    *RTE_MARKER[0];
+/** Marker for 1B alignment in a structure. */
+__extension__ typedef uint8_t  RTE_MARKER8[0];
+/** Marker for 2B alignment in a structure. */
+__extension__ typedef uint16_t RTE_MARKER16[0];
+/** Marker for 4B alignment in a structure. */
+__extension__ typedef uint16_t RTE_MARKER32[0];
+/** Marker for 8B alignment in a structure. */
+__extension__ typedef uint64_t RTE_MARKER64[0];
 
 /**
  * Combines 32b inputs most significant set bits into the least
-- 
2.24.0