Date: Fri, 18 Feb 2005 15:39:09 +0900 From: Pyun YongHyeon <yongari@kt-is.co.kr> To: Marius Strobl <marius@alchemy.franken.de> Cc: Olivier Cherrier <oc@symacx.com> Subject: Re: Onboard SCSI controller support on Ultra 2 Message-ID: <20050218063909.GA1541@kt-is.co.kr> In-Reply-To: <20050217230603.S18907@newtrinity.zeist.de> References: <a9fd2434258a08bc12f47247a253f1b4@symacx.com> <86a92e307b2dd4a18e91120078ad0f11@symacx.com> <a9fd2434258a08bc12f47247a253f1b4@symacx.com> <86a92e307b2dd4a18e91120078ad0f11@symacx.com> <20050216121647.GB91200@ida.interface-business.de> <20050216140208.A6222@newtrinity.zeist.de> <20050217024834.GC81013@kt-is.co.kr> <20050217230603.S18907@newtrinity.zeist.de>
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On Thu, Feb 17, 2005 at 11:06:03PM +0100, Marius Strobl wrote: > On Thu, Feb 17, 2005 at 11:48:34AM +0900, Pyun YongHyeon wrote: > > On Wed, Feb 16, 2005 at 02:02:08PM +0100, Marius Strobl wrote: > > [...] > > > > > > > > > > > > > The prob i did find was with QFE card support; they all appear as > > > > > > hme, have the correct individual MAC addresses--- but little else, > > > > > > and errors galore. > > > > > > > > The QFE actually *is* a quad HME card, that's why FreeBSD uses the > > > > same driver for it. What kind of problems do you have with it? > > > > > > > > I've only used PCI-based QFEs so far, but never encountered any > > > > problems with them -- they even make a fine Quad card in IA32 machines > > > > now that FreeBSD supports them outside of OpenFirmware systems. > > > > > > > > > > AFAIK the SBus QFE cards only have a single interrupt for all four > > > HMEs and the FreeBSD hme(4) doesn't take this into account. > > > > > AFAIK HME interrupt handler is called with softc argument. So I guess > > there is no problem since it can correctly find an instance of softc > > and related information. > > Depends on how it actually works. I can't remember were I read about it > but my impression was that it doesn't work like a shared IRQ in the > usual sense. > Anyway, there were reports in the past that SBus QFE don't work properly > and act like not getting interrupts. > Then it seems the SBus QFE has single interrupt source. If this is the case hme(4) should be taught to look into all instances of QFE softc. Adding a code to inspect all softc(maybe be seperate interrupt handler wrapper that calls real interrupt handler for each port) would be simple but I guess it also needs special attach/detach routine for QFE and hme(4) should know a global softc where it starts the traverse. -- Regards, Pyun YongHyeon http://www.kr.freebsd.org/~yongari | yongari@freebsd.org
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