> -----Original Message----- > From: dev [mailto:[email protected]] On Behalf Of Yao, Lei A > Sent: Monday, September 4, 2017 8:46 AM > To: Yang, Zhiyong <[email protected]>; [email protected] > Cc: [email protected]; Yigit, Ferruh <[email protected]>; Wiles, Keith > <[email protected]>; [email protected]; > Yang, Zhiyong <[email protected]> > Subject: Re: [dpdk-dev] [PATCH v2 3/4] common_base: extend RTE_MAX_ETHPORTS > from 32 to 1024 > > > > > -----Original Message----- > > From: dev [mailto:[email protected]] On Behalf Of Zhiyong Yang > > Sent: Monday, September 4, 2017 1:58 PM > > To: [email protected] > > Cc: [email protected]; Yigit, Ferruh <[email protected]>; Wiles, > > Keith <[email protected]>; [email protected]; Yang, > > Zhiyong <[email protected]> > > 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=32 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=32 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 <[email protected]> > > --- > > 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=y > > # > > CONFIG_RTE_LIBRTE_ETHER=y > > CONFIG_RTE_LIBRTE_ETHDEV_DEBUG=n > > -CONFIG_RTE_MAX_ETHPORTS=32 > > +CONFIG_RTE_MAX_ETHPORTS=1024 > > CONFIG_RTE_MAX_QUEUES_PER_PORT=1024 > > CONFIG_RTE_LIBRTE_IEEE1588=n > > CONFIG_RTE_ETHDEV_QUEUE_STAT_CNTRS=16 > > -- > 2.13.3 > Hi, Zhiyong > > I met one issue for changing CONFIG_RTE_MAX_ETHPORTS to 1024. > One process can only open 1024 file as maximum in common linux distribution, > after practice, only 1009 socket file can be used for vdev device with testpmd > sample.
ulimit -Sn 10000 ?
