linux-kernel - Re: [PATCH v4] net: add Faraday FTMAC100 10/100 Ethernet driver

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Message-Id: <20110224.104313.68122155.davem@davemloft.net>
Date:	Thu, 24 Feb 2011 10:43:13 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	ratbert.chuang@...il.com
Cc:	mirqus@...il.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, bhutchings@...arflare.com,
	eric.dumazet@...il.com, joe@...ches.com, dilinger@...ued.net,
	ratbert@...aday-tech.com
Subject: Re: [PATCH v4] net: add Faraday FTMAC100 10/100 Ethernet driver

From: Po-Yu Chuang <ratbert.chuang@...il.com>
Date: Thu, 24 Feb 2011 16:07:48 +0800

> On Thu, Feb 24, 2011 at 3:51 PM, David Miller <davem@...emloft.net> wrote:
>> Just emit garbage bytes into the sub-word alignment padding if the chip
>> wants to word align it's DMA writes.
> 
> Not sure what do you mean. The problem is that HW does not accept a
> base address of RX buffer which is not 8 bytes aligned.

I am saying this is what hardware should do if it has such a
restriction.
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