Date: Thu, 13 Nov 2008 18:03:20 +0800 From: "Ronnel P. Maglasang" <rmaglasang@infoweapons.com> To: freebsd-hardware@freebsd.org, freebsd-hackers@freebsd.org Subject: assigning interrupts Message-ID: <491BFB68.7050405@infoweapons.com>
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Hi All,
Is there a way to explicitly assign an interrupt
of a device? I'm running on 6.3 and the two NICs
share the same interrupt. Obviously this will affect
the performance if the NICs are exposed to heavy network
traffic.
# vmstat -i
interrupt total rate
<sniff>
irq11: em0 vr0+ 1081099 77
<sniff>
Total 16958562 1222
Looking at the driver's code, I have the initial though
that this is the place where I can modify.
--
adapter->res_interrupt = bus_alloc_resource_any(dev,
SYS_RES_IRQ, &rid, RF_SHAREABLE | RF_ACTIVE);
--
I've tried changing RF_SHAREABLE to RF_ALLOCATED or other
values but still could not get the desired result and worst
the device fail to initialize. Is this possible in 6.3?
Thanks,
Ronnel
help
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