Re: NS83820 2.6.0-test5 driver seems unstable on IA64

From: Grant Grundler <iod00d_at_hp.com>
Date: 2003-09-24 04:51:04
On Tue, Sep 23, 2003 at 02:29:25PM -0400, Benjamin LaHaise wrote:
...
> (yet another hardware issue pushed off on software for no significant gain).

Even x86 pays at least a one cycle penalty for every misaligned access.
In general, open source code has no excuse for using misaligned fields.
It's (mostly) avoidable.  TCP/IP headers are the historical exception.

One could make the same arguement that a modern NIC should not require
16 byte alignment for DMA. It's a tradeoff one way or the other.
Just a matter of perspective.

grant
-
To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Received on Tue Sep 23 14:54:28 2003

This archive was generated by hypermail 2.1.8 : 2005-08-02 09:20:17 EST