Date: Thu, 04 Dec 2003 10:46:46 +0200 From: rk47 <rk@nanoteq.co.za> To: freebsd-questions@freebsd.org Subject: Missing Interrupts Message-ID: <bqmrul$dg2$1@sea.gmane.org>
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I am developing a device driver for a processing type PCI card on FreeBSD
4.8.
I just can't seem to get my interrupts working. How can I find out what is
going wrong?
1. allocation returns without error
rid = 0;
sc->sc_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
0, ~0, 1, RF_SHAREABLE|RF_ACTIVE);
2. interrupt setup returns without errors
bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_NET,
ncc_intr, sc, &sc->sc_intrhand))
2.1 The interupt handler exists.
static void
ncc_intr(void *arg)
{ ... }
3. I can write to the PCI cards control registers, I confirm this by an LED
on the card.
4. There is a "force interrupt" register on the PCI card which I write to
but nothing happens.
5. We also have a win32 driver for this card can successfully force an
interrupt.
6. I did have it working a long time ago but now i dont know what I'm doing
wrong.
"vmstat -i" gives the following:
interrupt total rate
stray irq7 1 0
fxp0 irq3 4384 1
ata0 irq14 2840 1
ata1 irq15 4 0
atkbd0 irq1 1680 0
clk irq0 273172 99
rtc irq8 349672 127
Total 631753 231
Loading the module (KLD) gives the following
ncc0 mem 0xe7abfc00-0xe6abffff,0xe6ac0000-0xe6afffff irq 5 at
device 4.0 on pci1
Riaan
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