From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Prashant Bhole <prashantsmailcenter@gmail.com>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: ibm_newemac tx problem with jumbo frame enabled
Date: Fri, 25 Nov 2011 16:25:27 +1100 [thread overview]
Message-ID: <1322198727.32635.25.camel@pasglop> (raw)
In-Reply-To: <CAD6p20dmksH7YEjijdqLRG06aigaKTpzLPdoL0SCNGD3Ji9d2A@mail.gmail.com>
On Fri, 2011-11-18 at 10:33 +0530, Prashant Bhole wrote:
> Hi,
> I have been facing problem with ibm_newemac driver (v3.54).
> The board gets disconnected and can not be pinged in between
> some heavy network traffic. In my case I am running IOmeter
> "All-in-One" 8 threads on the iSCSI target. MTU is 4088.
>
> I found that after executing emac_full_tx_reset(), the board can
> be pinged again. Again after some heavy traffic of 5-6 seconds,
> traffic stops. This can be repeated after full tx reset.
>
> Is this a known issue? what could cause this?
> Any pointers would be greatly appreciated.
Not that I know of. Can you check if any of the error reporting
registers trip anything ? Could it just be a fifo overflow which we may
not be handling properly in the driver ?
Cheers,
Ben.
next prev parent reply other threads:[~2011-11-25 5:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-18 5:03 ibm_newemac tx problem with jumbo frame enabled Prashant Bhole
2011-11-25 5:25 ` Benjamin Herrenschmidt [this message]
2011-12-07 8:05 ` Prashant Bhole
2011-12-07 22:03 ` Benjamin Herrenschmidt
2011-12-08 13:01 ` Prashant Bhole
2011-12-08 22:59 ` Benjamin Herrenschmidt
2011-12-08 23:11 ` Tirumala Marri
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