From: Daniel Borkmann <daniel-FeC+5ew28dpmcu3hnIyYJQ@public.gmane.org>
To: Alexei Starovoitov <ast-uqk4Ao+rVK5Wk0Htik3J/w@public.gmane.org>,
David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
Cc: luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org,
mingo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
rostedt-nx8X9YLhiw1AfugRpC6u6w@public.gmane.org,
wangnan0-hv44wF8Li93QT0dZR+AlfA@public.gmane.org,
lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org,
daniel.wagner-98C5kh4wR6ohFhg+JK9F0w@public.gmane.org,
linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH v2 net-next 0/3] bpf: share helpers between tracing and networking
Date: Thu, 18 Jun 2015 10:10:26 +0200 [thread overview]
Message-ID: <55827CF2.3000605@iogearbox.net> (raw)
In-Reply-To: <558058A0.7030201-uqk4Ao+rVK5Wk0Htik3J/w@public.gmane.org>
On 06/16/2015 07:10 PM, Alexei Starovoitov wrote:
...
> Ideally we would allow a blend of tracing and networking programs,
> then the best solution would be one or two stable tracepoints in
> networking stack where skb is visible and receiving/transmitting task
> is also visible, then skb->len and task->pid together would give nice
> foundation for accurate stats.
I think combining both seems interesting anyway, we need to find
a way to make this gluing of both worlds easy to use, though. It's
certainly interesting for stats/diagnostics, but one wouldn't be
able to use the current/future skb eBPF helpers from {cls,act}_bpf
in that context.
WARNING: multiple messages have this Message-ID (diff)
From: Daniel Borkmann <daniel@iogearbox.net>
To: Alexei Starovoitov <ast@plumgrid.com>,
David Miller <davem@davemloft.net>
Cc: luto@amacapital.net, mingo@kernel.org, rostedt@goodmis.org,
wangnan0@huawei.com, lizefan@huawei.com,
daniel.wagner@bmw-carit.de, linux-api@vger.kernel.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 net-next 0/3] bpf: share helpers between tracing and networking
Date: Thu, 18 Jun 2015 10:10:26 +0200 [thread overview]
Message-ID: <55827CF2.3000605@iogearbox.net> (raw)
In-Reply-To: <558058A0.7030201@plumgrid.com>
On 06/16/2015 07:10 PM, Alexei Starovoitov wrote:
...
> Ideally we would allow a blend of tracing and networking programs,
> then the best solution would be one or two stable tracepoints in
> networking stack where skb is visible and receiving/transmitting task
> is also visible, then skb->len and task->pid together would give nice
> foundation for accurate stats.
I think combining both seems interesting anyway, we need to find
a way to make this gluing of both worlds easy to use, though. It's
certainly interesting for stats/diagnostics, but one wouldn't be
able to use the current/future skb eBPF helpers from {cls,act}_bpf
in that context.
next prev parent reply other threads:[~2015-06-18 8:10 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-13 2:39 [PATCH v2 net-next 0/3] bpf: share helpers between tracing and networking Alexei Starovoitov
2015-06-13 2:39 ` Alexei Starovoitov
2015-06-13 2:39 ` [PATCH v2 net-next 2/3] bpf: allow networking programs to use bpf_trace_printk() for debugging Alexei Starovoitov
2015-06-13 2:39 ` [PATCH v2 net-next 3/3] bpf: let kprobe programs use bpf_get_smp_processor_id() helper Alexei Starovoitov
[not found] ` <1434163154-5218-4-git-send-email-ast-uqk4Ao+rVK5Wk0Htik3J/w@public.gmane.org>
2015-06-13 8:23 ` Daniel Borkmann
2015-06-13 8:23 ` Daniel Borkmann
[not found] ` <1434163154-5218-1-git-send-email-ast-uqk4Ao+rVK5Wk0Htik3J/w@public.gmane.org>
2015-06-13 2:39 ` [PATCH v2 net-next 1/3] bpf: introduce current->pid, tgid, uid, gid, comm accessors Alexei Starovoitov
2015-06-13 2:39 ` Alexei Starovoitov
2015-06-15 23:01 ` [PATCH v2 net-next 0/3] bpf: share helpers between tracing and networking David Miller
2015-06-15 23:01 ` David Miller
[not found] ` <20150615.160130.583783771772303463.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2015-06-16 3:28 ` Alexei Starovoitov
2015-06-16 3:28 ` Alexei Starovoitov
2015-06-16 9:19 ` Daniel Borkmann
[not found] ` <557FEA2C.5080408-FeC+5ew28dpmcu3hnIyYJQ@public.gmane.org>
2015-06-16 17:10 ` Alexei Starovoitov
2015-06-16 17:10 ` Alexei Starovoitov
[not found] ` <558058A0.7030201-uqk4Ao+rVK5Wk0Htik3J/w@public.gmane.org>
2015-06-18 8:10 ` Daniel Borkmann [this message]
2015-06-18 8:10 ` Daniel Borkmann
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