From: Jakub Kicinski <jakub.kicinski@netronome.com>
To: David Ahern <dsahern@gmail.com>
Cc: Jiri Pirko <jiri@resnulli.us>,
netdev@vger.kernel.org, davem@davemloft.net,
stephen@networkplumber.org, mlxsw@mellanox.com
Subject: Re: [patch net-next v3 0/3] net: devlink: Finish network namespace support
Date: Mon, 12 Aug 2019 18:11:00 -0700 [thread overview]
Message-ID: <20190812181100.1cfd8b9d@cakuba.netronome.com> (raw)
In-Reply-To: <bfb879be-a232-0ef1-1c40-3a9c8bcba8f8@gmail.com>
On Mon, 12 Aug 2019 18:24:41 -0600, David Ahern wrote:
> On 8/12/19 7:47 AM, Jiri Pirko wrote:
> > From: Jiri Pirko <jiri@mellanox.com>
> >
> > Devlink from the beginning counts with network namespaces, but the
> > instances has been fixed to init_net. The first patch allows user
> > to move existing devlink instances into namespaces:
> >
> > $ devlink dev
> > netdevsim/netdevsim1
> > $ ip netns add ns1
> > $ devlink dev set netdevsim/netdevsim1 netns ns1
> > $ devlink -N ns1 dev
> > netdevsim/netdevsim1
> >
> > The last patch allows user to create new netdevsim instance directly
> > inside network namespace of a caller.
>
> The namespace behavior seems odd to me. If devlink instance is created
> in a namespace and never moved, it should die with the namespace. With
> this patch set, devlink instance and its ports are moved to init_net on
> namespace delete.
If the devlink instance just disappeared - that'd be a very very strange
thing. Only software objects disappear with the namespace.
Netdevices without ->rtnl_link_ops go back to init_net.
next prev parent reply other threads:[~2019-08-13 1:11 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-12 13:47 [patch net-next v3 0/3] net: devlink: Finish network namespace support Jiri Pirko
2019-08-12 13:47 ` [patch net-next v3 1/3] net: devlink: allow to change namespaces Jiri Pirko
2019-08-13 1:21 ` Jakub Kicinski
2019-08-13 6:13 ` Jiri Pirko
2019-08-13 17:04 ` Jakub Kicinski
2019-08-12 13:47 ` [patch net-next v3 2/3] net: devlink: export devlink net set/get helpers Jiri Pirko
2019-08-12 13:47 ` [patch net-next v3 3/3] netdevsim: create devlink and netdev instances in namespace Jiri Pirko
2019-08-12 13:51 ` [patch iproute2-next v3 1/2] devlink: introduce cmdline option to switch to a different namespace Jiri Pirko
2019-08-12 13:51 ` [patch iproute2-next v3 2/2] devlink: add support for network namespace change Jiri Pirko
2019-08-13 0:24 ` [patch net-next v3 0/3] net: devlink: Finish network namespace support David Ahern
2019-08-13 1:11 ` Jakub Kicinski [this message]
2019-08-13 1:46 ` David Ahern
2019-08-13 17:45 ` Jakub Kicinski
2019-08-13 6:07 ` Jiri Pirko
2019-08-13 6:09 ` Jiri Pirko
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