Subject: Re: CVS commit: src/sys/dev/ic
To: None <mrg@eterna.com.au>
From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
List: source-changes
Date: 10/21/2006 03:42:20
mrg@eterna.com.au wrote:
> FWIW, i use re(4) for an ultra10 nfs server that gets a lot of load.
> it used to sometimes lockup before a bus_dma fix (E2BIG vs EFBIG) but
> it works just fine these days.
Well, I guess it's because sparc64 machines have DMA coherent memory
(i.e. bus-snoop support) so they don't require bus_dmamap_sync(9)
calls so strictly.
On the other hand, if a driver works on sgimips, it will also work
on most other ports (except ones which don't have BUS_DMA_COHERENT
support like hppa), I guess.
---
Izumi Tsutsui