netdev - Re: Atheros Communications Inc. AR8121/AR8113/AR8114 Gigabit or Fast Ethernet (rev b0) 1.0.0.7 md5/sha1 corrupted using NFS and samba (updated) Version 2

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Date:	Mon, 25 Mar 2013 17:30:46 +0100
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
To:	"Huang, Xiong" <xiong@....qualcomm.com>,
	Sven Hartge <sven@...nhartge.de>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: Atheros Communications Inc. AR8121/AR8113/AR8114 Gigabit or Fast Ethernet (rev b0) 1.0.0.7 md5/sha1 corrupted using NFS and samba (updated) Version 2

On Sun, Mar 24, 2013 at 06:23:04PM +0100, Hannes Frederic Sowa wrote:
> > 2. try to set hw->dmaw_block = atl1e_dma_req_128 
> 
> Sorry, we can still reproduce corrupted frames with this change.

In atl1e_main.c

    940         max_pay_load  = ((dev_ctrl_data >> DEVICE_CTRL_MAX_PAYLOAD_SHIFT)) &
    941                         DEVICE_CTRL_MAX_PAYLOAD_MASK;
    942 
    943         hw->dmaw_block = min_t(u32, max_pay_load, hw->dmaw_block);

the value dmaw_block always gets reset to 0 on my machine. I forced it
to use atl1e_dma_req_1024 as it seems intended. But no change either.

Thanks,

  Hannes

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