netdev - Re: [PATCH net-next v2 0/4] packet: add cBPF and eBPF fanout modes

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Message-Id: <20150817.142313.1118336177187820064.davem@davemloft.net>
Date:	Mon, 17 Aug 2015 14:23:13 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	willemb@...gle.com
Cc:	netdev@...r.kernel.org, edumazet@...gle.com, daniel@...earbox.net,
	ast@...mgrid.com
Subject: Re: [PATCH net-next v2 0/4] packet: add cBPF and eBPF fanout modes

From: Willem de Bruijn <willemb@...gle.com>
Date: Fri, 14 Aug 2015 22:31:33 -0400

> From: Willem de Bruijn <willemb@...gle.com>
> 
> Allow programmable fanout modes. Support both classical BPF programs
> passed directly and extended BPF programs passed by file descriptor.
> 
> One use case is packet steering by deep packet inspection, for
> instance for packet steering by application layer header fields.
> 
> Separate the configuration of the fanout mode and the configuration
> of the program, to allow dynamic updates to the latter at runtime.
> 
> Changes
>   v1 -> v2:
>     - follow SO_LOCK_FILTER semantics on filter updates
>     - only accept eBPF programs of type BPF_PROG_TYPE_SOCKET_FILTER
>     - rename PACKET_FANOUT_BPF to PACKET_FANOUT_CBPF to match
>       man 2 bpf usage: "classic" vs. "extended" BPF.

Series applied, although I hope that synchronize_net() doesn't become
a scalability issue in some workload in the future.
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