From: <jerinj@marvell.com>
To: <dev@dpdk.org>
Cc: <thomas@monjalon.net>, <david.marchand@6wind.com>,
Jerin Jacob <jerinj@marvell.com>
Subject: [dpdk-dev] [PATCH v2 1/3] eal: introduce structure marker typedefs
Date: Thu, 19 Dec 2019 16:55:05 +0530 [thread overview]
Message-ID: <20191219112507.3142025-1-jerinj@marvell.com> (raw)
In-Reply-To: <20191208113413.2179329-1-jerinj@marvell.com>
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>
---
v2:
- Changed __extension__ to RTE_STD_C11 (Thomas)
- Change "a point" to "any place" of RTE_MARKER comment(Thomas)
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..00c8b8434 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 any place in a structure. */
+RTE_STD_C11 typedef void *RTE_MARKER[0];
+/** Marker for 1B alignment in a structure. */
+RTE_STD_C11 typedef uint8_t RTE_MARKER8[0];
+/** Marker for 2B alignment in a structure. */
+RTE_STD_C11 typedef uint16_t RTE_MARKER16[0];
+/** Marker for 4B alignment in a structure. */
+RTE_STD_C11 typedef uint16_t RTE_MARKER32[0];
+/** Marker for 8B alignment in a structure. */
+RTE_STD_C11 typedef uint64_t RTE_MARKER64[0];
/**
* Combines 32b inputs most significant set bits into the least
--
2.24.1
next prev parent reply other threads:[~2019-12-19 11:24 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-08 11:34 [dpdk-dev] [PATCH 1/3] eal: introduce structure marker typedefs jerinj
2019-12-08 11:34 ` [dpdk-dev] [PATCH 2/3] drivers: use structure marker typedef in eal jerinj
2019-12-08 11:34 ` [dpdk-dev] [PATCH 3/3] mbuf: " jerinj
2019-12-10 22:46 ` [dpdk-dev] [PATCH 1/3] eal: introduce structure marker typedefs Thomas Monjalon
2019-12-19 10:34 ` Jerin Jacob
2019-12-19 11:25 ` jerinj [this message]
2019-12-19 11:25 ` [dpdk-dev] [PATCH v2 2/3] drivers: use structure marker typedef in eal jerinj
2019-12-19 11:25 ` [dpdk-dev] [PATCH v2 3/3] mbuf: " jerinj
2019-12-26 16:24 ` Olivier Matz
2020-01-20 21:55 ` Thomas Monjalon
2019-12-20 4:21 ` [dpdk-dev] [PATCH v2 1/3] eal: introduce structure marker typedefs Gavin Hu
2019-12-26 8:15 ` Matan Azrad
2020-01-02 6:27 ` Jerin Jacob
2020-01-02 9:48 ` Matan Azrad
2020-01-16 13:09 ` Jerin Jacob
2020-01-20 20:11 ` Thomas Monjalon
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