On Tue, 2007-05-29 at 18:39 -0400, Jeff Garzik wrote: > We check for 0xffffffff because that is often how a fault is indicated, > when the memory location is read during or immediately after hotplug (or > if the PCI bus is truly faulty). So for most hardware, you see > > tmp = read(irq status) > if (!tmp) > return irq-none /* no irq events raised */ > if (tmp == 0xffffffff) > return irq-none /* hot unplug or h/w fault */ > > and the method that determines no interrupt handling is needed. >
I guess you are right, but then shouldn't the driver be checking for faults in other parts of the code too? What if a fault/hotplug occurs immediately after an interrupt, but before a tx? Thanks, Gary - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
