From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>
Cc: Bruce Richardson <bruce.richardson@intel.com>,
Harry van Haaren <harry.van.haaren@intel.com>,
Thomas Monjalon <thomas.monjalon@6wind.com>,
dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH 1/3] net/thunderx: disable pmd for gcc < 4.7
Date: Thu, 6 Apr 2017 18:03:52 +0530 [thread overview]
Message-ID: <20170406123350.GB18255@jerin> (raw)
In-Reply-To: <20170406121428.16883-1-ferruh.yigit@intel.com>
-----Original Message-----
> Date: Thu, 6 Apr 2017 13:14:26 +0100
> From: Ferruh Yigit <ferruh.yigit@intel.com>
> To: Jerin Jacob <jerin.jacob@caviumnetworks.com>, Bruce Richardson
> <bruce.richardson@intel.com>, Harry van Haaren
> <harry.van.haaren@intel.com>, Thomas Monjalon <thomas.monjalon@6wind.com>
> Cc: dev@dpdk.org, Ferruh Yigit <ferruh.yigit@intel.com>
> Subject: [PATCH 1/3] net/thunderx: disable pmd for gcc < 4.7
> X-Mailer: git-send-email 2.8.4
>
> PMD uses some compiler builtins and new compiler options. Tested with
> gcc 4.5.1 and following were not supported:
>
> option:
> -Ofast
>
> macros:
> _Static_assert
>
> __ORDER_LITTLE_ENDIAN__
> __ORDER_BIG_ENDIAN__
> __BYTE_ORDER__
>
> __atomic_fetch_add
> __ATOMIC_ACQUIRE
> __atomic_load_n
> __ATOMIC_RELAXED
> __atomic_store_n
> __ATOMIC_RELEASE
>
> It is not easy to fix all in PMD, disabling PMD for gcc version < 4.7
>
> Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
> ---
> drivers/net/thunderx/Makefile | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/drivers/net/thunderx/Makefile b/drivers/net/thunderx/Makefile
> index 706250b..0b9f0a2 100644
> --- a/drivers/net/thunderx/Makefile
> +++ b/drivers/net/thunderx/Makefile
> @@ -62,6 +62,14 @@ SRCS-$(CONFIG_RTE_LIBRTE_THUNDERX_NICVF_PMD) += nicvf_svf.c
>
> ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
> CFLAGS_nicvf_rxtx.o += -fno-prefetch-loop-arrays
> +
> +# Disable PMD for gcc < 4.7
> +ifeq ($(shell test $(GCC_VERSION) -lt 47 && echo 1), 1)
> +$(warning thunderx pmd not supported by gcc < 4.7)
> +LIB =
> +SRC-y =
> +endif
> +
> endif
> CFLAGS_nicvf_rxtx.o += -Ofast
>
> --
> 2.9.3
>
next prev parent reply other threads:[~2017-04-06 12:34 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-06 12:14 Ferruh Yigit
2017-04-06 12:14 ` [dpdk-dev] [PATCH 2/3] event/octeontx: fix compilation for gcc < 4.6 Ferruh Yigit
2017-04-06 12:26 ` Jerin Jacob
2017-04-06 12:14 ` [dpdk-dev] [PATCH 3/3] event/sw: fix build error for gcc 4.5.1 Ferruh Yigit
2017-04-06 12:21 ` Van Haaren, Harry
2017-04-06 12:33 ` Jerin Jacob [this message]
2017-04-06 13:05 ` [dpdk-dev] [PATCH 1/3] net/thunderx: disable pmd for gcc < 4.7 Ferruh Yigit
2017-04-06 13:46 ` [dpdk-dev] [PATCH v2 1/3] net/thunderx: disable pmd for older compilers Ferruh Yigit
2017-04-06 13:46 ` [dpdk-dev] [PATCH v2 2/3] event/octeontx: fix build error for gcc < 4.6 Ferruh Yigit
2017-04-06 13:46 ` [dpdk-dev] [PATCH v2 3/3] event/sw: fix build error for gcc 4.5.1 Ferruh Yigit
2017-04-06 13:59 ` [dpdk-dev] [PATCH v2 1/3] net/thunderx: disable pmd for older compilers Thomas Monjalon
2017-04-06 14:05 ` Ferruh Yigit
2017-04-06 14:09 ` Thomas Monjalon
2017-04-06 14:46 ` Ferruh Yigit
2017-04-06 17:05 ` [dpdk-dev] [PATCH v3 1/3] net/thunderx: disable PMD " Ferruh Yigit
2017-04-06 17:05 ` [dpdk-dev] [PATCH v3 2/3] event/octeontx: fix build error for gcc < 4.6 Ferruh Yigit
2017-04-06 17:05 ` [dpdk-dev] [PATCH v3 3/3] event/sw: fix build error for gcc 4.5.1 Ferruh Yigit
2017-04-06 18:40 ` [dpdk-dev] [PATCH v3 1/3] net/thunderx: disable PMD for older compilers Thomas Monjalon
2017-04-06 13:52 ` [dpdk-dev] [PATCH 1/3] net/thunderx: disable pmd for gcc < 4.7 Thomas Monjalon
2017-04-06 14:00 ` Jerin Jacob
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170406123350.GB18255@jerin \
--to=jerin.jacob@caviumnetworks.com \
--cc=bruce.richardson@intel.com \
--cc=dev@dpdk.org \
--cc=ferruh.yigit@intel.com \
--cc=harry.van.haaren@intel.com \
--cc=thomas.monjalon@6wind.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).