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From: Thomas Monjalon <thomas@monjalon.net>
To: "Zhang, Qi Z" <qi.z.zhang@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	David Marchand <david.marchand@redhat.com>,
	 "Richardson, Bruce" <bruce.richardson@intel.com>,
	"stable@dpdk.org" <stable@dpdk.org>,
	"Wu, Jingjing" <jingjing.wu@intel.com>,
	"Xing, Beilei" <beilei.xing@intel.com>,
	"McDaniel, Timothy" <timothy.mcdaniel@intel.com>,
	Ajit Khaparde <ajit.khaparde@broadcom.com>,
	Somnath Kotur <somnath.kotur@broadcom.com>,
	"Daley, John" <johndale@cisco.com>,
	Hyong Youb Kim <hyonkim@cisco.com>,
	Dongdong Liu <liudongdong3@huawei.com>,
	Yisen Zhuang <yisen.zhuang@huawei.com>,
	"Zhang, Yuying" <yuying.zhang@intel.com>,
	Maxime Coquelin <maxime.coquelin@redhat.com>,
	"Xia, Chenbo" <chenbo.xia@intel.com>,
	Shijith Thotton <sthotton@marvell.com>,
	 "Matz, Olivier" <olivier.matz@6wind.com>
Subject: Re: [PATCH] drivers: skip build of sub-libs not supporting IOVA mode
Date: Thu, 02 Mar 2023 14:57:50 +0100	[thread overview]
Message-ID: <2030660.o4kTbAZ4gJ@thomas> (raw)
In-Reply-To: <DM4PR11MB59943D80379048C794B1C550D7B29@DM4PR11MB5994.namprd11.prod.outlook.com>

02/03/2023 14:52, Zhang, Qi Z:
> From: Thomas Monjalon <thomas@monjalon.net>
> > If IOVA as PA is disabled and the driver does not support IOVA as VA, the
> > build of the driver was disabled.
> > Unfortunately some drivers were building some sub-libraries (with specific
> > options for vector paths) which were not disabled.
> > 
> > The build parsing of those drivers need to be skipped earlier to avoid
> > defining the sub-libraries.
> > 
> > Fixes: a986c2b7973d ("build: add option to configure IOVA mode as PA")
> > Cc: stable@dpdk.org
> > 
> > Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
[...]
> > --- a/drivers/meson.build
> > +++ b/drivers/meson.build
> > @@ -127,9 +127,9 @@ foreach subpath:subdirs
> >              # pull in driver directory which should update all the local variables
> >              subdir(drv_path)
> > 
> > -            if dpdk_conf.get('RTE_IOVA_AS_PA') == 0 and not
> > pmd_supports_disable_iova_as_pa and not
> > always_enable.contains(drv_path)
> > +            if not get_option('enable_iova_as_pa') and not
> > + pmd_supports_disable_iova_as_pa and not
> > + always_enable.contains(drv_path)
> >                  build = false
> > -                reason = 'driver does not support disabling IOVA as PA mode'
> > +                reason = 'IOVA as VA not supported'
> >              endif
> 
> If we check enable_iova_as_pa for each unsupported driver , do we still need "pmd_supports_disable_iova_as_pa"?

They are a bit redundant.
The idea is to use pmd_supports_disable_iova_as_pa (could be renamed)
as it is simpler to use.
But in the case of drivers having sub-libs (always enabled),
we need an extra check of enable_iova_as_pa inside the driver file.



  reply	other threads:[~2023-03-02 13:57 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-19 11:55 Thomas Monjalon
2023-03-02 13:52 ` Zhang, Qi Z
2023-03-02 13:57   ` Thomas Monjalon [this message]
2023-03-02 14:16     ` Zhang, Qi Z
2023-03-03 14:23       ` Thomas Monjalon
2023-03-02 14:26 ` Morten Brørup
2023-03-02 16:01 ` [EXT] " Shijith Thotton
2023-03-06 16:13 ` [PATCH v2 0/2] refactor diasbling IOVA as PA Thomas Monjalon
2023-03-06 16:13   ` [PATCH v2 1/2] build: clarify configuration without IOVA field in mbuf Thomas Monjalon
2023-03-06 16:35     ` Morten Brørup
2023-03-06 16:39     ` Bruce Richardson
2023-03-06 19:49       ` Thomas Monjalon
2023-03-09  1:43     ` fengchengwen
2023-03-09  7:29       ` Thomas Monjalon
2023-03-09 11:23         ` fengchengwen
2023-03-09 12:12           ` Thomas Monjalon
2023-03-09 13:10             ` Bruce Richardson
2023-03-13 15:51               ` Thomas Monjalon
2023-03-06 16:13   ` [PATCH v2 2/2] drivers: skip build of sub-libs not supporting IOVA mode Thomas Monjalon
2023-03-14 14:29 ` [PATCH v3 0/5] refactor disabling IOVA as PA Thomas Monjalon
2023-03-14 14:29   ` [PATCH v3 1/5] build: clarify configuration without IOVA field in mbuf Thomas Monjalon
2023-03-15  1:56     ` fengchengwen
2023-03-16 11:00       ` Thomas Monjalon
2023-03-14 14:29   ` [PATCH v3 2/5] net/hns3: support IOVA forced as VA Thomas Monjalon
2023-03-14 14:29   ` [PATCH v3 3/5] dma/hisilicon: " Thomas Monjalon
2023-03-14 14:29   ` [PATCH v3 4/5] compress/octeontx: " Thomas Monjalon
2023-03-14 14:29   ` [PATCH v3 5/5] drivers: skip build of sub-libs not supporting IOVA mode Thomas Monjalon

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