On Thursday 13 November 2008 05:03:20 am Ronnel P. Maglasang wrote: > 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?
You can not easily assign them, no. In many cases the interrupt pins from the devices may be hardwired to a single input pin on an interrupt controller. In that case there is nothing you can do. You can read more about the gory details here: http://people.freebsd.org/~jhb/papers/bsdcan/2007/ -- John Baldwin _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
