From owner-freebsd-questions Wed Jun 14 9:30:12 2000 Delivered-To: freebsd-questions@freebsd.org Received: from rover.village.org (rover.village.org [204.144.255.49]) by hub.freebsd.org (Postfix) with ESMTP id CD99E37C187; Wed, 14 Jun 2000 09:30:01 -0700 (PDT) (envelope-from imp@harmony.village.org) Received: from harmony.village.org (harmony.village.org [10.0.0.6]) by rover.village.org (8.9.3/8.9.3) with ESMTP id KAA12010; Wed, 14 Jun 2000 10:29:59 -0600 (MDT) (envelope-from imp@harmony.village.org) Received: from harmony.village.org (localhost.village.org [127.0.0.1]) by harmony.village.org (8.9.3/8.8.3) with ESMTP id KAA21967; Wed, 14 Jun 2000 10:28:48 -0600 (MDT) Message-Id: <200006141628.KAA21967@harmony.village.org> To: "Brech, Cary" , freebsd-hackers@FreeBSD.ORG, mblott@lucent.com, "Savio, Florie N" Subject: Re: FreeBSD Support of Hot Swappable NICs Cc: Alfred Perlstein , freebsd-questions@FreeBSD.ORG In-reply-to: Your message of "Wed, 07 Jun 2000 17:07:19 CDT." <20000607170719.A24836@dan.emsphone.com> References: <20000607170719.A24836@dan.emsphone.com> Date: Wed, 14 Jun 2000 10:28:48 -0600 From: Warner Losh Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In message <20000607170719.A24836@dan.emsphone.com> Dan Nelson writes: : In-Reply-To: <20000607114158.C17973@fw.wintelcom.net>; from "Alfred Perlstein" on Wed Jun 7 11:41:59 GMT 2000 : X-OS: FreeBSD 5.0-CURRENT : : In the last episode (Jun 07), Alfred Perlstein said: : > Brech, Cary [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). The compact PCI hot swap spec isn't implemented in FreeBSD at this time. The compact PCI cards will work w/o the hot swap stuff just fine. The hot swap spec doesn't include a register set to program to, as far as I could tell in my limited researches, so each chipset needs its own driver to add hot swap capibilities. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message