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Date: Fri, 18 Nov 2011 10:33:37 +0530
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Subject: ibm_newemac tx problem with jumbo frame enabled
From: Prashant Bhole <prashantsmailcenter@gmail.com>
To: linuxppc-dev@ozlabs.org
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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.


-
Prashant