From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David S. Miller" Date: Wed, 24 Sep 2003 00:06:34 +0000 Subject: Re: NS83820 2.6.0-test5 driver seems unstable on IA64 Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org On Wed, 24 Sep 2003 01:14:56 +0100 Matthew Wilcox wrote: > (I can see this descending into get_unaligned_likely() and > get_aligned_unlikely() which i'd rather avoid ...) get_unaligned_unlikely() is exactly what just loading the 32-bit value as if it were aligned is, ie. what we're doing right now. People who want top performance should not put a networking card into their machine that can only DMA packets to 32-byte or whatever boundaries. That's exactly the limitation NS83820 has and therefore why it should be avoided like the plague by performance conscious folks.