netdev - Re: [PATCH] ifb: add multi-queue support

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Date:	Wed, 11 Nov 2009 17:56:59 +0800
From:	Changli Gao <xiaosuo@...il.com>
To:	"David S. Miller" <davem@...emloft.net>,
	Stephen Hemminger <shemminger@...tta.com>
Cc:	Patrick McHardy <kaber@...sh.net>,
	Eric Dumazet <eric.dumazet@...il.com>,
	Tom Herbert <therbert@...gle.com>, netdev@...r.kernel.org
Subject: Re: [PATCH] ifb: add multi-queue support

2009/11/11 Changli Gao <xiaosuo@...il.com>:
> ifb: add multi-queue support
>
> Add multi-queue support, and one kernel thread is created for per queue.
> It can used to emulate multi-queue NIC in software, and distribute work
> among CPUs.
> gentux linux # modprobe ifb numtxqs=2
> gentux linux # ifconfig ifb0 up
> gentux linux # pgrep ifb0
> 18508
> 18509
> gentux linux # taskset -p 1 18508
> pid 18508's current affinity mask: 3
> pid 18508's new affinity mask: 1
> gentux linux # taskset -p 2 18509
> pid 18509's current affinity mask: 3
> pid 18509's new affinity mask: 2
> gentux linux # tc qdisc add dev br0 ingress
> gentux linux # tc filter add dev br0 parent ffff: protocol ip basic
> action mirred egress redirect dev ifb0
>
> This patch also introduces a ip link option "numtxqs" for specifying the
> number of the TX queues. so you can add a new ifb with the command:
>
> ip link add numtxqs 4 type ifb
>

The corresponding patch for iproute2 is attached too. And you need to
update the linux header files too.


-- 
Regards，
Changli Gao(xiaosuo@...il.com)

Download attachment "iproute2-support-numtxqs.diff" of type "application/octet-stream" (1214 bytes)