Date: Wed, 07 Jun 2000 16:29:59 -0600 From: Wes Peters <wes@softweyr.com> To: "Brech, Cary" <CBrech@kenan.com>, freebsd-hackers@FreeBSD.ORG, mblott@lucent.com, "Savio, Florie N" <fsavio@lucent.com> Cc: Alfred Perlstein <bright@wintelcom.net>, freebsd-questions@FreeBSD.ORG Subject: Re: FreeBSD Support of Hot Swappable NICs Message-ID: <393ECCE7.76D9857@softweyr.com> References: <20000607170719.A24836@dan.emsphone.com>
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Dan Nelson wrote:
>
> In the last episode (Jun 07), Alfred Perlstein said:
> > Brech, Cary <CBrech@kenan.com> [000607 10:33] wrote:
> > > Lucent recently introduced a product that uses FreeBSD as its OS.
> > > We are currently contemplating adding the ability to "Hot Swap" the
> > > custom network interface cards we are developing for the next
> > > release. The question we have is does FreeBSD support the ability
> > > to hot swap network interface cards?
> > >
> > > Thanks in advance for your assistance!
> >
> > We can do pcmcia hot swap, but it gets hairy if the interface is
> > in use, the interface should be 'downed' before removing afaik.
>
> Or do you mean PCI hot-plug? FreeBSD currently doesn't support
> powering off PCI slots or re-probing the PCI bus after bootup, both of
> which are required for hot-plug. I don't know how hard it would be to
> add, either. You'll probably have to ask -hackers about that (cc and
> reply-to reset there).
Warner Losh has just started to look into support for CPCI, which would
mandate hot-swap and bus reprobing. The CardBus support is similar in
concept, too.
--
"Where am I, and what am I doing in this handbasket?"
Wes Peters Softweyr LLC
wes@softweyr.com http://softweyr.com/
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