Re: [dpdk-dev] How to prevent KNI interface from getting deleted on application termination?

[Gopakumar Choorakkot Edakkunni <gopakumar.c.e@gmail.com>]

You are right, I dint think of the rings. I guess if I keep the netdev
intact and release the rings and stuff as it does on a /dev/kni close,
that should be fine ? And when my app comes back up and opens dev/kni,
the rings etc.. can be recreated, and when my app tries to create the
netdevs, it  reattaches it to the existing ones. The way I look at it,
its similar to the tun/tap ioctl option TUNSETPERSIST.

Rgds,
Gopa.

On Thu, Jul 9, 2015 at 9:46 AM, Stephen Hemminger
<stephen@networkplumber.org> wrote:
> On Wed, 8 Jul 2015 23:36:52 -0700
> Gopakumar Choorakkot Edakkunni <gopakumar.c.e@gmail.com> wrote:
>
>> Reading through the KNI module source, doesnt look like there is a way
>> to do this. For my requirement, I will make some patch tomorrow to
>> have a module option to just keep the KNI data structures around even
>> if /dev/kni is closed, looks straightforward to do from the code
>
>
> I don't think it is that simple given the shared ring in KNI