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From: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
To: Ruifeng Wang <Ruifeng.Wang@arm.com>, oulijun <oulijun@huawei.com>,
	"Min Hu (Connor)" <humin29@huawei.com>,
	Yisen Zhuang <yisen.zhuang@huawei.com>,
	Huisong Li <lihuisong@huawei.com>,
	Chengchang Tang <tangchengchang@huawei.com>,
	Chengwen Feng <fengchengwen@huawei.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	"vladimir.medvedkin@intel.com" <vladimir.medvedkin@intel.com>,
	"jerinj@marvell.com" <jerinj@marvell.com>,
	"hemant.agrawal@nxp.com" <hemant.agrawal@nxp.com>,
	nd <nd@arm.com>, "stable@dpdk.org" <stable@dpdk.org>,
	Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>,
	nd <nd@arm.com>
Subject: Re: [dpdk-dev] [PATCH v2 2/5] net/hns3: fix build with sve enabled
Date: Mon, 11 Jan 2021 13:38:10 +0000
Message-ID: <DBAPR08MB58144032BFA2BA839BF7D09B98AB0@DBAPR08MB5814.eurprd08.prod.outlook.com> (raw)
In-Reply-To: <VI1PR0802MB235132313595655B255871979EAB0@VI1PR0802MB2351.eurprd08.prod.outlook.com>

<snip>

> > >
> > >>
> > >> Building with SVE extension enabled stopped with error:
> > >>
> > >>   error: ACLE function ‘svwhilelt_b64_s32’ requires ISA extension ‘sve’
> > >>     18 | #define PG64_256BIT  svwhilelt_b64(0, 4)
> > >>
> > >> This is caused by unintentional cflags reset.
> > >> Fixed the issue by appending required flag to cflags instead of overriding it.
> > >>
> > >> Fixes: 952ebacce4f2 ("net/hns3: support SVE Rx")
> > >> Cc: xavier.huwei@huawei.com
> > >> Cc: stable@dpdk.org
> > >>
> > >> Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
> > >> ---
> > >>   drivers/net/hns3/meson.build | 2 +-
> > >>   1 file changed, 1 insertion(+), 1 deletion(-)
> > >>
> > >> diff --git a/drivers/net/hns3/meson.build
> > >> b/drivers/net/hns3/meson.build index 45cee34d9..798086357 100644
> > >> --- a/drivers/net/hns3/meson.build
> > >> +++ b/drivers/net/hns3/meson.build
> > >> @@ -32,7 +32,7 @@ deps += ['hash']
> > >>   if arch_subdir == 'arm' and dpdk_conf.get('RTE_ARCH_64')
> > >>   sources += files('hns3_rxtx_vec.c')
> > >>   if cc.get_define('__ARM_FEATURE_SVE', args: machine_args) != ''
> > >> -cflags = ['-DCC_SVE_SUPPORT']
> > >> +cflags += ['-DCC_SVE_SUPPORT']
> > > This comment is unrelated to this patch. We need to be consistent
> > > with the
> > macro definitions. Is '__ARM_FEATURE_SVE' not enough? If we need to
> > define an additional flag, I would name it something like
> > 'RTE_ARM_FEATURE_SVE'.
> > >
> > I think the __ARM_FEATURE_SVE is ok. if use the gcc version included
> > SVE flag, it will be identified as __ARM_FEATURE_SVE. it is defined in
> > the ARM SVE document.
> 
> Yes, we can rely on flags defined by compiler and no extra flag is needed.
> I can update in next version to remove this section from meson file and replace
> CC_SVE_SUPPORT in code.
Sounds good to me.

> > >>   sources += files('hns3_rxtx_vec_sve.c')
> > >>   endif
> > >>   endif
> > >> --
> > >> 2.25.1
> > >


  reply	other threads:[~2021-01-11 13:38 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-18 10:12 [dpdk-dev] [RFC PATCH] lpm: add sve support for lookup on Arm platform Ruifeng Wang
2021-01-05 15:44 ` Medvedkin, Vladimir
2021-01-06 10:11   ` Ruifeng Wang
2021-01-08  8:25 ` [dpdk-dev] [PATCH v2 0/5] lpm lookup with sve support Ruifeng Wang
2021-01-08  8:25   ` [dpdk-dev] [PATCH v2 1/5] lpm: add sve support for lookup on Arm platform Ruifeng Wang
2021-01-13 18:54     ` Medvedkin, Vladimir
2021-01-08  8:25   ` [dpdk-dev] [PATCH v2 2/5] net/hns3: fix build with sve enabled Ruifeng Wang
2021-01-09  0:06     ` Honnappa Nagarahalli
2021-01-09  2:11       ` oulijun
2021-01-11  2:39         ` Ruifeng Wang
2021-01-11 13:38           ` Honnappa Nagarahalli [this message]
2021-01-09  2:15     ` oulijun
2021-01-11  2:27       ` Ruifeng Wang
2021-01-08  8:25   ` [dpdk-dev] [PATCH v2 3/5] net/octeontx: " Ruifeng Wang
2021-01-08  8:25   ` [dpdk-dev] [PATCH v2 4/5] common/octeontx2: " Ruifeng Wang
2021-01-08 10:29     ` [dpdk-dev] [EXT] " Pavan Nikhilesh Bhagavatula
2021-01-11  9:51       ` Ruifeng Wang
2021-01-08  8:25   ` [dpdk-dev] [PATCH v2 5/5] config: add Arm Neoverse N2 Ruifeng Wang
2021-01-08 23:58     ` Honnappa Nagarahalli
2021-01-11  3:01       ` Ruifeng Wang
2021-01-11  3:09         ` Jerin Jacob
2021-01-11  8:32           ` Ruifeng Wang
2021-01-11 13:58             ` Honnappa Nagarahalli
2021-01-12  2:57 ` [dpdk-dev] [PATCH v3 0/5] lpm lookup with sve support Ruifeng Wang
2021-01-12  2:57   ` [dpdk-dev] [PATCH v3 1/5] lpm: add sve support for lookup on Arm platform Ruifeng Wang
2021-01-13 15:58     ` David Marchand
2021-01-27 13:04     ` David Marchand
2021-01-27 21:03       ` Honnappa Nagarahalli
2021-01-28  8:03         ` David Marchand
2021-01-28 12:24           ` Honnappa Nagarahalli
2021-01-28  5:47       ` Ruifeng Wang
2021-01-12  2:57   ` [dpdk-dev] [PATCH v3 2/5] net/hns3: fix build with sve enabled Ruifeng Wang
2021-01-13  2:16     ` Honnappa Nagarahalli
2021-01-12  2:57   ` [dpdk-dev] [PATCH v3 3/5] net/octeontx: " Ruifeng Wang
2021-01-12  4:39     ` Jerin Jacob
2021-01-12  2:57   ` [dpdk-dev] [PATCH v3 4/5] common/octeontx2: " Ruifeng Wang
2021-01-12  4:38     ` Jerin Jacob
2021-01-12  2:57   ` [dpdk-dev] [PATCH v3 5/5] config: add Arm Neoverse N2 Ruifeng Wang
2021-01-12  4:44     ` Jerin Jacob
2021-01-13  2:08     ` Honnappa Nagarahalli
2021-01-14 15:18   ` [dpdk-dev] [PATCH v3 0/5] lpm lookup with sve support David Marchand
2021-01-14 15:40     ` David Marchand
2021-01-15  7:02       ` Ruifeng Wang

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