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From: John Baldwin <jhb@freebsd.org>
To: =?iso-8859-1?q?S=F8ren_Schmidt?= <sos@freebsd.org>
Date: Wed, 16 Apr 2008 10:08:01 -0400
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Cc: Dag-Erling =?iso-8859-1?q?Sm=F8rgrav?= <des@des.no>,
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Subject: Re: cvs commit: src/sys/dev/ata ata-all.h ata-raid.c
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On Monday 14 April 2008 01:09:23 pm S=F8ren Schmidt wrote:
> Hi
>
> Yes, the registers used for setting up events when hotswap happens are
> not accessible when in legacy compat mode.

If all you need is for the AHCI BAR to have resources assigned newer FreeBS=
D=20
kernels (at least 6.x and later) are smart enough to alloc resources for a=
=20
BAR that the BIOS doesn't assign resources for when you do a=20
bus_alloc_resource().

> -S=F8ren
>
> On 14Apr, 2008, at 18:00 , Dag-Erling Sm=F8rgrav wrote:
> > S=F8ren Schmidt <sos@FreeBSD.org> writes:
> >> You have to set AHCI mode in the BIOS or the resources needed to use
> >> it wont be available, so yes its software but not ours :)
> >
> > Thanks S=F8ren, I will make sure the BIOS is correctly configured.
> >
> > Does this also affect hotswap?  I assume that the ICH8 supports it,
> > but
> > I haven't been able to make it work.
> >
> > DES
> > --
> > Dag-Erling Sm=F8rgrav - des@des.no



=2D-=20
John Baldwin