On Thursday, November 17, 2011 6:38:21 am Matteo Landi wrote: > Hi everybody, > > trying to measure the interrupt latency of a 10G Intel network > adapter, I find out that the the used driver (ixgbe) can can be > configured to work with both fast and standard interrupts. From my > understanding of the BUS_SETUP_INTR(9) man page and > sys/kern/kern_intr.c file, it seems that drivers in need of > registering fast interrupts should call bus_setup_intr() specifying a > filter function instead of a handler. > > My question is: why ixgbe_allocate_legacy() says it is allocating a > fast interrupt (comments and error messages say so) but instead passes > a handler instead of a filter to pci_setup_intr()? Is there anything I > am not taking into account?
It is not a fast handler and is not using the fast handler stuff. OTOH, you probably want to be using MSI-X for a 10G NIC instead of INTx anyway. -- John Baldwin _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"