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To: Etienne de Bruin <Etienne.Debruin@KryptoKom.DE>
cc: freebsd-hackers@FreeBSD.ORG (Hackers FreeBSD), questions@FreeBSD.ORG
Subject: Re: interrupt handler discrepancy
In-reply-to: Your message of "Wed, 04 Nov 1998 14:11:36 +0100."
<199811041311.OAA04022@borg.kryptokom.de>
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Date: Thu, 05 Nov 1998 00:30:26 -0800
From: Mike Smith <mike@smith.net.au>
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> i install my interrupt handler using pci_map_int().
>
> when using ioctl call to my pci device driver and issuing an interrupt,
> the interupt handler gets
> called - no problem. my crypt device driver gets called from user space
> in this case.
>
> but when using my crypt card together with two network interfaces, when
> i issue an interrupt, my _intr function does not get called for some
> reason. my crypt device driver gets called from within the kernel in this
> case.
>
> all i can think is that for some reasons the network cards do splxxx()
> to such an extent that my interupt handler never gets a chance .. is this
> possible?
No. It's possible that your test is not seeing that your interrrupt is
being called, but shared interrupts are known to work (albeit
inefficiently).
--
\\ Sometimes you're ahead, \\ Mike Smith
\\ sometimes you're behind. \\ mike@smith.net.au
\\ The race is long, and in the \\ msmith@freebsd.org
\\ end it's only with yourself. \\ msmith@cdrom.com
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