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From: "Paul P. Pongco" <paulp@mozcom.com>
To: Stephen Hemminger <shemminger@osdl.org>
Cc: linux-net@vger.kernel.org, bridge@osdl.org
Subject: Re: [Bridge] maximum throughput for linux bridge
Date: Mon, 16 Feb 2004 22:36:14 +0800	[thread overview]
Message-ID: <1076942173.741.88.camel@amidala.mozcom.com> (raw)
In-Reply-To: <402D1112.4040902@osdl.org>

Thanks for your reply.

> >
> It is not a bridge problem, just that bridging puts more stress on the 
> network driver.
Yep, i really suspected it was something with the 3com card. Found
something on the bridge FAQ regarding 3com cards (setting
interrupt_work=10000). If you have additional options such as indicated
on the bridge FAQ available that you know or links that discuss this
please let me know. 

> 
> The problem is that the 3c905 cards don't support interrupt mitigation, 
> so when lots
> of network traffic hits, they drop data.  The 3c59x driver allocates and 
> copies every
> received frame in the interrupt routine.  What is needed is a new driver 
> that does NAPI
> (any volunteers)? 
would you know of any network card that can work as a bridge and at the
same time has NAPI drivers?


-- 
Cheers,

Paul P. Pongco
Mosaic Communications Inc.




      parent reply	other threads:[~2004-02-16 14:36 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-02-13  7:37 [Bridge] maximum throughput for linux bridge Paul P. Pongco
2004-02-13 18:01 ` Stephen Hemminger
2004-02-15 12:02   ` Steffen Klassert
2004-02-16 14:36   ` Paul P. Pongco [this message]

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