netdev - Re: [PATCH net-next-2.6] filter: add SKF_AD_RXHASH and SKF_AD

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 06 Dec 2010 13:02:52 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	netdev@...r.kernel.org, wirelesser@...il.com
Subject: Re: [PATCH net-next-2.6] filter: add SKF_AD_RXHASH and SKF_AD_CPU

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Wed, 01 Dec 2010 08:45:56 +0100

> Add SKF_AD_RXHASH and SKF_AD_CPU to filter ancillary mechanism,
> to be able to build advanced filters.
> 
> This can help spreading packets on several sockets with a fast
> selection, after RPS dispatch to N cpus for example, or to catch a
> percentage of flows in one queue.
> 
> tcpdump -s 500 "cpu = 1" :
> 
> [0] ld CPU
> [1] jeq #1  jt 2  jf 3 
> [2] ret #500
> [3] ret #0
> 
> # take 12.5 % of flows (average)
> tcpdump -s 1000 "rxhash & 7 = 2" :
> 
> [0] ld RXHASH
> [1] and #7
> [2] jeq #2  jt 3  jf 4 
> [3] ret #1000
> [4] ret #0
> 
> Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>

Applied.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html