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From: Kiran Kumar Kokkilagadda <kirankumark@marvell.com>
To: Olivier Matz <olivier.matz@6wind.com>,
	Raslan Darawsheh <rasland@mellanox.com>
Cc: Ferruh Yigit <ferruh.yigit@intel.com>,
	Adrien Mazarguil <adrien.mazarguil@6wind.com>,
	Wenzhuo Lu <wenzhuo.lu@intel.com>,
	Jingjing Wu <jingjing.wu@intel.com>,
	Bernard Iremonger <bernard.iremonger@intel.com>,
	John McNamara <john.mcnamara@intel.com>,
	Marko Kovacevic <marko.kovacevic@intel.com>,
	Thomas Monjalon <thomas@monjalon.net>,
	"Andrew Rybchenko" <arybchenko@solarflare.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	"ajit.khaparde@broadcom.com" <ajit.khaparde@broadcom.com>
Subject: Re: [dpdk-dev] [EXT] Re: [PATCH v10] ethdev: add HIGIG2 key field to flow API
Date: Wed, 23 Oct 2019 11:43:58 +0000	[thread overview]
Message-ID: <CH2PR18MB327292489F75974C6480132AAC6B0@CH2PR18MB3272.namprd18.prod.outlook.com> (raw)
In-Reply-To: <20191023113913.GK25286@glumotte.dev.6wind.com>

> -----Original Message-----
> From: Olivier Matz <olivier.matz@6wind.com>
> Sent: Wednesday, October 23, 2019 5:09 PM
> To: Raslan Darawsheh <rasland@mellanox.com>
> Cc: Ferruh Yigit <ferruh.yigit@intel.com>; Kiran Kumar Kokkilagadda
> <kirankumark@marvell.com>; Adrien Mazarguil
> <adrien.mazarguil@6wind.com>; Wenzhuo Lu <wenzhuo.lu@intel.com>;
> Jingjing Wu <jingjing.wu@intel.com>; Bernard Iremonger
> <bernard.iremonger@intel.com>; John McNamara
> <john.mcnamara@intel.com>; Marko Kovacevic <marko.kovacevic@intel.com>;
> Thomas Monjalon <thomas@monjalon.net>; Andrew Rybchenko
> <arybchenko@solarflare.com>; dev@dpdk.org; ajit.khaparde@broadcom.com
> Subject: [EXT] Re: [dpdk-dev] [PATCH v10] ethdev: add HIGIG2 key field to flow
> API
> 
> External Email
> 
> ----------------------------------------------------------------------
> Hi,
> 
> 
> 
> On Wed, Oct 23, 2019 at 10:50:52AM +0000, Raslan Darawsheh wrote:
> 
> > Hi,
> 
> >
> 
> > This patch broke the compilation of MLX5 PMD in debug mode:
> 
> >
> 
> >                  from /root/dpdk/x86_64-native-linux-
> gcc/include/rte_ethdev_driver.h:18,
> 
> >                  from /root/dpdk/drivers/net/mlx5/mlx5_mp.c:11:
> 
> > /root/dpdk/x86_64-native-linux-gcc/include/rte_higig.h:112:2: error: type of
> bit-field 'opcode' is a GCC extension [-Werror=pedantic]
> 
> >   uint16_t opcode:3;
> 
> >   ^
> 
> > /root/dpdk/x86_64-native-linux-gcc/include/rte_higig.h:113:2: error: type of
> bit-field 'resv1' is a GCC extension [-Werror=pedantic]
> 
> >   uint16_t resv1:2;
> 
> >   ^
> 
> > /root/dpdk/x86_64-native-linux-gcc/include/rte_higig.h:114:2: error: type of
> bit-field 'src_t' is a GCC extension [-Werror=pedantic]
> 
> >   uint16_t src_t:1;
> 
> >   ^
> 
> > /root/dpdk/x86_64-native-linux-gcc/include/rte_higig.h:115:2: error: type of
> bit-field 'pfm' is a GCC extension [-Werror=pedantic]
> 
> >   uint16_t pfm:2;
> 
> >   ^
> 
> > /root/dpdk/x86_64-native-linux-gcc/include/rte_higig.h:116:2: error: type of
> bit-field 'resv2' is a GCC extension [-Werror=pedantic]
> 
> >   uint16_t resv2:5;
> 
> >   ^
> 
> > /root/dpdk/x86_64-native-linux-gcc/include/rte_higig.h:117:2: error: type of
> bit-field 'hdr_ext_len' is a GCC extension [-Werror=pedantic]
> 
> >   uint16_t hdr_ext_len:3;
> 
> >
> 
> > and this is with gcc 4.8.5
> 
> 
> 
> From https://urldefense.proofpoint.com/v2/url?u=https-
> 3A__stackoverflow.com_questions_10906238_warning-2Dwhen-2Dusing-
> 2Dbitfield-2Dwith-2Dunsigned-
> 2Dchar&d=DwIBAg&c=nKjWec2b6R0mOyPaz7xtfQ&r=owEKckYY4FTmil1Z6oBUR
> wkTThyuRbLAY9LdfiaT6HA&m=GZ-
> 6cngPycaUlGJT20VEOf9oTcp5PMwk7j1JV1vAQfs&s=SCg5yVPS4zZa8GSn9bl_eUtI
> vBmoDzi35PspWUttIUY&e=
> 
> it seems that it is allowed in c99, so I guess it's a gcc 4.8 bug.
> 
> 
> 
> Adding __extension__ above the struct solves the warnings, I suggest to
> 
> add it.

/**
 *
 * higig2 ppt type1 header.
 */
RTE_STD_C11
struct rte_higig2_ppt_type1 {
        uint16_t classification;
        uint16_t resv;
        uint16_t vid;
#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
        uint16_t opcode:3;
        uint16_t resv1:2;
        uint16_t src_t:1;
        uint16_t pfm:2;
        uint16_t resv2:5;
        uint16_t hdr_ext_len:3;
#elif RTE_BYTE_ORDER == RTE_BIG_ENDIAN
        uint16_t pfm:2;
        uint16_t src_t:1;
        uint16_t resv1:2;
        uint16_t opcode:3;
        uint16_t hdr_ext_len:3;
        uint16_t resv2:5;
#endif
};

I have already added it. RTE_STD_C11 , this is a macro for __extension__. 
/** C extension macro for environments lacking C11 features. */
#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 201112L
#define RTE_STD_C11 __extension__
#else
#define RTE_STD_C11
#endif

> 
> 
> 
> 
> 
> Olivier


  reply	other threads:[~2019-10-23 11:44 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-14  4:29 [dpdk-dev] [PATCH] " kirankumark
2019-10-14  7:08 ` Andrew Rybchenko
2019-10-15  4:23   ` [dpdk-dev] [EXT] " Kiran Kumar Kokkilagadda
2019-10-15  6:20 ` [dpdk-dev] " kirankumark
2019-10-15  6:27   ` Jerin Jacob
2019-10-15  6:57     ` [dpdk-dev] [EXT] " Kiran Kumar Kokkilagadda
2019-10-15  8:22     ` [dpdk-dev] " Ananyev, Konstantin
2019-10-15  8:32   ` [dpdk-dev] [PATCH v3] " kirankumark
2019-10-17  4:15     ` [dpdk-dev] [PATCH v4] " kirankumark
2019-10-17  9:08       ` Andrew Rybchenko
2019-10-18  4:13       ` [dpdk-dev] [PATCH v5] " kirankumark
2019-10-18  7:36         ` Andrew Rybchenko
2019-10-18 17:36         ` Ferruh Yigit
2019-10-19  4:51           ` [dpdk-dev] [EXT] " Kiran Kumar Kokkilagadda
2019-10-19  4:56         ` [dpdk-dev] [PATCH v6] " kirankumark
2019-10-19  9:47           ` Jerin Jacob
2019-10-20  4:52           ` [dpdk-dev] [PATCH v7] " kirankumark
2019-10-20 13:56             ` Jerin Jacob
2019-10-21  3:52             ` [dpdk-dev] [PATCH v8] " kirankumark
2019-10-21  9:16               ` [dpdk-dev] [PATCH v9] " kirankumark
2019-10-21 16:48                 ` Olivier Matz
2019-10-22  4:16                 ` [dpdk-dev] [PATCH v10] " kirankumark
2019-10-22  9:19                   ` Ferruh Yigit
2019-10-23 10:50                     ` Raslan Darawsheh
2019-10-23 11:39                       ` Olivier Matz
2019-10-23 11:43                         ` Kiran Kumar Kokkilagadda [this message]
2019-10-23 14:04                           ` [dpdk-dev] [EXT] " Olivier Matz
2019-10-23 14:14                             ` Ferruh Yigit
2019-10-23 22:04                   ` [dpdk-dev] " Thomas Monjalon
2019-10-15 16:47 ` [dpdk-dev] [PATCH] " Stephen Hemminger
2019-10-16  3:14   ` [dpdk-dev] [EXT] " Kiran Kumar Kokkilagadda

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