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Date:      Wed, 07 Jun 2000 19:27:35 -0700
From:      Mike Smith <msmith@freebsd.org>
To:        Coleman Kane <cokane@one.net>
Cc:        "Brech, Cary" <CBrech@kenan.com>, freebsd-hackers@FreeBSD.ORG, mblott@lucent.com, "Savio, Florie N" <fsavio@lucent.com>, Alfred Perlstein <bright@wintelcom.net>, freebsd-questions@FreeBSD.ORG
Subject:   Re: FreeBSD Support of Hot Swappable NICs 
Message-ID:  <200006080227.TAA04108@mass.cdrom.com>
In-Reply-To: Your message of "Wed, 07 Jun 2000 22:24:46 EDT." <20000607222446.C14205@cokane.yi.org> 

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Actually, there's still a *lot* of work that has to be done to make this 
work "right" - let me say two things only:

"resource allocation"

"interrupt routing"

> This is rather interesting, it probably would have to do with PCI BIOS support
> as well, I suppose, but other than that, as long as you could safely unload and
> reload the pci code without depending upon it... it may work, or maybe set up a
> hook into the driver to rescan.
> 
> Dan Nelson had the audacity to say:
> > 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).
> > 
> > -- 
> > 	Dan Nelson
> > 	dnelson@emsphone.com
> > 
> > 
> > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > with "unsubscribe freebsd-hackers" in the body of the message
> > 
> 
> -- 
> Coleman Kane
> President, 
> UC Free O.S. Users Group - http://pohl.ececs.uc.edu
> 
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-hackers" in the body of the message
> 

-- 
\\ Give a man a fish, and you feed him for a day. \\  Mike Smith
\\ Tell him he should learn how to fish himself,  \\  msmith@freebsd.org
\\ and he'll hate you for a lifetime.             \\  msmith@cdrom.com




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