From: Stephen Hemminger <shemminger@vyatta•com>
To: Julian Anastasov <ja@ssi•bg>
Cc: netdev@vger•kernel.org
Subject: Re: [RFC] Interface for TCP Metrics
Date: Mon, 20 Aug 2012 09:30:09 -0700 [thread overview]
Message-ID: <20120820093009.519d9bec@nehalam.linuxnetplumber.net> (raw)
In-Reply-To: <alpine.LFD.2.00.1208191402560.1893@ja.ssi.bg>
On Sun, 19 Aug 2012 14:42:15 +0300 (EEST)
Julian Anastasov <ja@ssi•bg> wrote:
>
> Hello,
>
> Once DaveM mentioned that TCP Metrics need their
> own interface. I'm planning to implement such interface
> but lets first decide how it should look. After little
> research, here is my plan:
>
> - will use genl with TCP_METRICS_GENL_NAME "tcp_metrics",
> TCP_METRICS_GENL_VERSION 0x01
Ok, but don't use libnl in iproute
> - provide dumpit method and one cmd to read metrics by exact addr,
> will use TCP_METRICS_CMD_{GET,...} and TCP_METRICS_ATTR_xxx in
> new file include/linux/tcp_metrics.h
Doing filtering in use space is fine, no need to be too fancy.
> - Is command to delete cached entry needed? Delete will need
> new rcu_head. Useful to flush the cache or to delete entries
> with filter.
>
> - without support for delete cmd, may be we can add command to
> reset entry with default values from dst?
>
> - Where to put the new netlink code?
> tcp_metrics_netlink.c
> tcp_metrics_nl.c
> or just in current tcp_metrics.c ?
>
> - will provide support for ip tool:
>
next prev parent reply other threads:[~2012-08-20 16:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-19 11:42 [RFC] Interface for TCP Metrics Julian Anastasov
2012-08-19 13:50 ` Eric Dumazet
2012-08-20 16:30 ` Stephen Hemminger [this message]
2012-08-23 5:47 ` David Miller
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