From owner-freebsd-current Wed Jun 2 11:40:50 1999 Delivered-To: freebsd-current@freebsd.org Received: from uni4nn.gn.iaf.nl (osmium.gn.iaf.nl [193.67.144.12]) by hub.freebsd.org (Postfix) with ESMTP id 3615614DDB for ; Wed, 2 Jun 1999 11:40:46 -0700 (PDT) (envelope-from wilko@yedi.iaf.nl) Received: from yedi.iaf.nl (uucp@localhost) by uni4nn.gn.iaf.nl (8.9.2/8.9.2) with UUCP id TAA15836; Wed, 2 Jun 1999 19:44:16 +0200 (MET DST) Received: (from wilko@localhost) by yedi.iaf.nl (8.9.3/8.9.3) id AAA04951; Wed, 2 Jun 1999 00:10:31 +0200 (CEST) (envelope-from wilko) From: Wilko Bulte Message-Id: <199906012210.AAA04951@yedi.iaf.nl> Subject: Re: IRQ sharing with newbus In-Reply-To: from Doug Rabson at "Jun 1, 1999 10:48:14 pm" To: dfr@nlsystems.com (Doug Rabson) Date: Wed, 2 Jun 1999 00:10:31 +0200 (CEST) Cc: winter@jurai.net, newton@atdot.dotat.org, current@FreeBSD.ORG X-Organisation: Private FreeBSD site - Arnhem, The Netherlands X-pgp-info: PGP public key at 'finger wilko@freefall.freebsd.org' X-Mailer: ELM [version 2.4ME+ PL43 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG As Doug Rabson wrote ... > On Tue, 1 Jun 1999, Matthew N. Dodd wrote: > > > On Tue, 1 Jun 1999, Mark Newton wrote: > > > So, guys -- What is the officially blessed way of sharing IRQs under > > > newbus? > > > > If you find out, let me know since the EISA code suffers the same problem > > (though the drivers do a bit better job detecting the condition, and just > > fail to attach instead of panicing.) > > For EISA, it should be possible to add RF_SHAREABLE to the > bus_alloc_resource call (assuming that EISA interrupts are shareable like > pci interrupts). IRRC (it's been years) EISA cards can, but don't have to, support shared interrupts. I think the SCU/ECU can set this based on what the .CFG file of the card tells it the hardware can do. I once designed a EISA 2 channel SCSI adapter but that was > 9 years ago. Bitrot.. | / o / / _ Arnhem, The Netherlands - Powered by FreeBSD - |/|/ / / /( (_) Bulte WWW : http://www.tcja.nl http://www.freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message