Subject: Re: Bus mastering to user space
To: None <gscott@altatech.com, misc@openbsd.org, tech-kern@NetBSD.ORG>
From: Matthew Jacob <mjacob@feral.com>
List: tech-kern
Date: 07/18/1997 14:19:02
>From tech-kern-owner-mjacob=feral.com@NetBSD.ORG Fri Jul 18 13:52:02 1997
>Do the *BSD's support bus mastering DMA devices that transfer to/from user
>memory? I've been told that Linux does not and will not.
Yes, *BSD supports DMA to/from user space.
>The goal here is to reduce the copying of data to support 100-200
>MBytes/sec devices. What is the fastest throughput anyone has achieved?
Dunno.