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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.

  parent reply	other threads:[~2015-06-18  8:10 UTC|newest]

Thread overview: 10+ 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
     [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
2015-06-15 23:01   ` [PATCH v2 net-next 0/3] bpf: share helpers between tracing and networking David Miller
     [not found]     ` <20150615.160130.583783771772303463.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
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
     [not found]               ` <558058A0.7030201-uqk4Ao+rVK5Wk0Htik3J/w@public.gmane.org>
2015-06-18  8:10                 ` Daniel Borkmann [this message]
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

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