From: Alexei Starovoitov <ast@plumgrid•com>
To: Daniel Borkmann <daniel@iogearbox•net>, davem@davemloft•net
Cc: jiri@resnulli•us, netdev@vger•kernel.org,
Jamal Hadi Salim <jhs@mojatatu•com>
Subject: Re: [PATCH net-next 2/2] act_bpf: add initial eBPF support for actions
Date: Fri, 20 Mar 2015 14:21:51 -0700 [thread overview]
Message-ID: <550C8F6F.9050403@plumgrid.com> (raw)
In-Reply-To: <6fcca3889ace4f7f090470e50a001aca721bd0d9.1426859241.git.daniel@iogearbox.net>
On 3/20/15 7:11 AM, Daniel Borkmann wrote:
> This work extends the "classic" BPF programmable tc action by extending
> its scope also to native eBPF code!
>
> Together with commit e2e9b6541dd4 ("cls_bpf: add initial eBPF support
> for programmable classifiers") this adds the facility to implement fully
> flexible classifier and actions for tc that can be implemented in a C
> subset in user space, "safely" loaded into the kernel, and being run in
> native speed when JITed.
>
> Also, since eBPF maps can be shared between eBPF programs, it offers the
> possibility that cls_bpf and act_bpf can share data 1) between themselves
> and 2) between user space applications. That means that, f.e. customized
> runtime statistics can be collected in user space, but also more importantly
> classifier and action behaviour could be altered based on map input from
> the user space application.
>
> For the remaining details on the workflow and integration, see the cls_bpf
> commit e2e9b6541dd4. Preliminary iproute2 part can be found under [1].
>
> [1] http://git.breakpoint.cc/cgit/dborkman/iproute2.git/log/?h=ebpf-act
>
> Signed-off-by: Daniel Borkmann <daniel@iogearbox•net>
> Cc: Jamal Hadi Salim <jhs@mojatatu•com>
> Cc: Jiri Pirko <jiri@resnulli•us>
Acked-by: Alexei Starovoitov <ast@plumgrid•com>
next prev parent reply other threads:[~2015-03-20 21:21 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-20 14:11 [PATCH net-next 0/2] act_bpf update Daniel Borkmann
2015-03-20 14:11 ` [PATCH net-next 1/2] ebpf: add sched_act_type and map it to sk_filter's verifier ops Daniel Borkmann
2015-03-20 14:21 ` Jiri Pirko
2015-03-20 21:11 ` Alexei Starovoitov
2015-03-20 14:11 ` [PATCH net-next 2/2] act_bpf: add initial eBPF support for actions Daniel Borkmann
2015-03-20 14:30 ` Jiri Pirko
2015-03-20 21:21 ` Alexei Starovoitov [this message]
2015-03-20 20:22 ` [PATCH net-next 0/2] act_bpf update David Miller
2015-03-20 21:10 ` Daniel Borkmann
2015-03-20 21:26 ` Alexei Starovoitov
2015-03-20 22:21 ` David Miller
2015-03-20 22:45 ` Daniel Borkmann
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