From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH v4] net: add Faraday FTMAC100 10/100 Ethernet driver Date: Thu, 24 Feb 2011 10:43:13 -0800 (PST) Message-ID: <20110224.104313.68122155.davem@davemloft.net> References: <20110223.235129.02262510.davem@davemloft.net> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: mirqus@gmail.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, bhutchings@solarflare.com, eric.dumazet@gmail.com, joe@perches.com, dilinger@queued.net, ratbert@faraday-tech.com To: ratbert.chuang@gmail.com Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Po-Yu Chuang Date: Thu, 24 Feb 2011 16:07:48 +0800 > On Thu, Feb 24, 2011 at 3:51 PM, David Miller 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.