Re: alignment issues on netif

To:	jes@xxxxxxxxxxxxx (Jes Sorensen)
Subject:	Re: alignment issues on netif_rx
From:	kuznet@xxxxxxxxxxxxx
Date:	Mon, 18 Dec 2000 22:30:31 +0300 (MSK)
Cc:	netdev@xxxxxxxxxxx, davem@xxxxxxxxxx
In-reply-to:	<d3zohttu8l.fsf@lxplus015.cern.ch> from "Jes Sorensen" at Dec 18, 0 08:16:58 pm
Sender:	owner-netdev@xxxxxxxxxxx

Hello!

> The problem is that some cards like the Tulip and Starfire don't allow
> misaligned DMA.

Aligned dma can be always used and, if protocol happens to be ethernet II,
headers can be copied for faulty architectures. Actually, I am even not sure
that misaligned accesses for intel are better than copy.

Alexey

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Re: alignment issues on netif_rx