From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>
Subject: Re: [PATCH v2 3/4] common_base: extend RTE_MAX_ETHPORTS
 from	32 to 1024
Date: Mon, 4 Sep 2017 09:27:11 +0000
Message-ID: <2601191342CEEE43887BDE71AB9772584F243E1E@irsmsx105.ger.corp.intel.com>
References: <20170809084203.17562-1-zhiyong.yang@intel.com>
 <20170904055734.21354-1-zhiyong.yang@intel.com>
 <20170904055734.21354-4-zhiyong.yang@intel.com>
 <2DBBFF226F7CF64BAFCA79B681719D953A266703@shsmsx102.ccr.corp.intel.com>
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Cc: "thomas@monjalon.net" <thomas@monjalon.net>, "Yigit, Ferruh"
 <ferruh.yigit@intel.com>, "Wiles, Keith" <keith.wiles@intel.com>,
 "stephen@networkplumber.org" <stephen@networkplumber.org>, "Yang, Zhiyong"
 <zhiyong.yang@intel.com>
To: "Yao, Lei A" <lei.a.yao@intel.com>, "Yang, Zhiyong"
 <zhiyong.yang@intel.com>, "dev@dpdk.org" <dev@dpdk.org>
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> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Yao, Lei A
> Sent: Monday, September 4, 2017 8:46 AM
> To: Yang, Zhiyong <zhiyong.yang@intel.com>; dev@dpdk.org
> Cc: thomas@monjalon.net; Yigit, Ferruh <ferruh.yigit@intel.com>; Wiles, K=
eith <keith.wiles@intel.com>; stephen@networkplumber.org;
> Yang, Zhiyong <zhiyong.yang@intel.com>
> Subject: Re: [dpdk-dev] [PATCH v2 3/4] common_base: extend RTE_MAX_ETHPOR=
TS from 32 to 1024
>=20
>=20
>=20
> > -----Original Message-----
> > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Zhiyong Yang
> > Sent: Monday, September 4, 2017 1:58 PM
> > To: dev@dpdk.org
> > Cc: thomas@monjalon.net; Yigit, Ferruh <ferruh.yigit@intel.com>; Wiles,
> > Keith <keith.wiles@intel.com>; stephen@networkplumber.org; Yang,
> > Zhiyong <zhiyong.yang@intel.com>
> > Subject: [dpdk-dev] [PATCH v2 3/4] common_base: extend
> > RTE_MAX_ETHPORTS from 32 to 1024
> >
> > The reasons to modify RTE_MAX_ETHPORTS is the following.
> >
> > 1. RTE_MAX_ETHPORTS=3D32 by default has not met user's requirements
> > with development of virtualization technology. Some vdev users have
> > to modify the setting before the compiling.
> >
> > 2. port_id have been extended to 16 bits definition. But for many
> > samples such as testpmd, l3fwd, num of port is still limited to
> > RTE_MAX_ETHPORTS=3D32 by default. This may limit usage of 16 bits
> > port_id.
> >
> > So, it is necessary to enlarge RTE_MAX_ETHPORTS to more than 256.
> >
> > Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
> > ---
> >  config/common_base | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/config/common_base b/config/common_base
> > index 5e97a08b6..dccc13e31 100644
> > --- a/config/common_base
> > +++ b/config/common_base
> > @@ -131,7 +131,7 @@ CONFIG_RTE_LIBRTE_KVARGS=3Dy
> >  #
> >  CONFIG_RTE_LIBRTE_ETHER=3Dy
> >  CONFIG_RTE_LIBRTE_ETHDEV_DEBUG=3Dn
> > -CONFIG_RTE_MAX_ETHPORTS=3D32
> > +CONFIG_RTE_MAX_ETHPORTS=3D1024
> >  CONFIG_RTE_MAX_QUEUES_PER_PORT=3D1024
> >  CONFIG_RTE_LIBRTE_IEEE1588=3Dn
> >  CONFIG_RTE_ETHDEV_QUEUE_STAT_CNTRS=3D16
> > --
 > 2.13.3
> Hi, Zhiyong
>=20
> I met one issue for changing CONFIG_RTE_MAX_ETHPORTS to 1024.
> One process can only open 1024 file as maximum in common linux distributi=
on,
> after practice, only 1009 socket file can be used for vdev device with te=
stpmd
> sample.

ulimit -Sn 10000
?