On Tue, 2007-09-10 at 14:22 -0700, David Miller wrote: > Even if the device has "huge queues" I still think we need a software > queue for when the hardware one backs up.
It should be fine to just "pretend" the qdisc exists despite it sitting in the driver and not have s/ware queues at all to avoid all the challenges that qdiscs bring; if the h/ware queues are full because of link pressure etc, you drop. We drop today when the s/ware queues are full. The driver txmit lock takes place of the qdisc queue lock etc. I am assuming there is still need for that locking. The filter/classification scheme still works as is and select classes which map to rings. tc still works as is etc. cheers, jamal - 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
