Re: Lockless IP input queue, the pktqueue interface

[Masanobu SAITOH <msaitoh%execsw.org@localhost>]

Hi, rmind.

(2014/05/27 11:52), Mindaugas Rasiukevicius wrote:
> Hello,
>
> As we are trying to bring more parallelism in our network stack, I would
> like to make IPv4 and IPv6 input queues lockless.  This is implemented by
> replacing struct ifqueue and macros around it with a pktqueue interface.
> This interface also abstracts and handles network ISR scheduling and that
> will allow us to easily add receiver-side packet steering later.
>
> http://www.netbsd.org/~rmind/ip_pktq.diff
>
> The patch makes the following changes:
> - Implements pktqueue interface (see pktqueue.{c,h} files).
> - Replaces ipintrq and ip6intrq with the pktqueue mechanism.
> - Eliminates kernel-lock from ipintr() and ip6intr().
> - Some preparation work to push softnet_lock out of ipintr().
>
> Extra testing would be helpful.
>
> Thanks.

 Is the change "New interface for the ifnet queue" in the
following page's table?

        http://www.netbsd.org/~rmind/smpnet/

The implementaion column of "New interface for the ifnet queue"
is blank :)

--
-----------------------------------------------
                SAITOH Masanobu (msaitoh%execsw.org@localhost
                                 msaitoh%netbsd.org@localhost)