netdev - Re: [net-next-2.6 PATCH 3/8] vxge: Align the memory only if it is misaligned.

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Message-Id: <20100329.165945.157920838.davem@davemloft.net>
Date:	Mon, 29 Mar 2010 16:59:45 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	Sreenivasa.Honnur@...erion.com
Cc:	netdev@...r.kernel.org, support@...erion.com
Subject: Re: [net-next-2.6 PATCH 3/8] vxge: Align the memory only if it is
 misaligned.

From: Sreenivasa Honnur <Sreenivasa.Honnur@...erion.com>
Date: Mon, 29 Mar 2010 04:09:47 -0400 (EDT)

> - Align the memory only if it is misaligned.
> 
> Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@...erion.com>
> Signed-off-by: Ramkrishna Vepa <ram.vepa@...erion.com>

Applied, but this vxge_os_dma_malloc code is completely
unnecessary.

If you want to allocate 4K chunks and make sure they are at least 128
byte aligned, you can allocated pages (which are always PAGE_SIZE
aligned) and chop them up into the appropriate block size as needed.

This is exactly how drivers/net/niu.c handles this situation.

See drivers/net/niu.c:niu_rbr_add_page()
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