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From: Janpieter Sollie <janpieter.sollie@telenet.be>
To: linux-kernel@vger.kernel.org
Subject: Re: POI: nvidia forcedeth phy id not present
Date: Fri, 10 Aug 2012 19:08:41 +0200	[thread overview]
Message-ID: <50254019.1030304@telenet.be> (raw)
In-Reply-To: <50244458.5040906@telenet.be>

A primary concern seems to be solved (4k frame size).
However, it is not really a patch yet, just a dirty workaround (just replaced ETH_DATA_LEN with
a value 4000, my switch is limited to 4k)

486c486
< #define NV_PKTLIMIT_1_ETH_DATA_LEN /* hard limit not known */
---
> #define NV_PKTLIMIT_1 4000 /* hard limit not known */

I will try to improve the MTU detection in driver, but it can take some time before I really
understand what each function does. I do not know if this workaround forces a value to the
'initiated' phy, or just forces a wrong MTU to be used on standard nvidia cards.
the results are worth considering: dd -if=//server/share of=/dev/null went from 91 to 112 mbps
(and this is no file cache, the pc has 2gb ram (>50% used by GUI) and the source file is 30 ...)
any help developing a patch may be useful.  Is there some documentation about this driver module?

      reply	other threads:[~2012-08-10 17:08 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <50243237.9040704@telenet.be>
2012-08-09 23:14 ` Janpieter Sollie
2012-08-10 17:08   ` Janpieter Sollie [this message]

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