Subject: Re: Valid use of bus_dma(9)?
To: None <>
From: Martin Husemann <>
List: tech-kern
Date: 07/23/2004 23:06:26
On Fri, Jul 23, 2004 at 03:38:09PM -0500, David Young wrote:
> Network drivers don't copy ds_addr into transmit/receive descriptors?
> How does this work if they are not "system physical addresses" ?

They are physical addresses from the devices point of view. On some
systems this is very much different from the CPUs point of view.