On Fri, 25 Mar 2016, Christoph Hellwig wrote: > On Fri, Mar 25, 2016 at 08:51:51AM -0700, Weongyo Jeong wrote: > > Each irq_desc only supports one IRQ affinity notifier at current > > implementation so when we try to register another notifier, it silently > > unregister previous entry and register new one. > > > > However the problem is that if CONFIG_RFS_ACCEL is set, at current > > implementation no way to set additional IRQ affinity notifier for > > some NIC cards RFS enabled because it already used for RFS. > > With this patch we can register multiple IRQ affinity notifiers. > > The whole concept of these irq affinity notifiers seems wrong to me. > > If a device supports MSI-X it should simply request per-cpu or per-node > vectors and we should prevent affinity changes for them. You beat me to it. I'm having a half baken prototype to implement this at the core level. Will post next week. Thanks, tglx -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
