On 19/05/2015 17:02, Stefan Hajnoczi wrote: > 1. Convert everything like you converted qemu-nbd.c. This is a > conservative approach and we can be confident that behavior is > unchanged.
So, that means whenever you change receive_disabled you call a new callback on the peer? In addition, whenever the count of receive-disabled ports switches from zero to non-zero or vice versa, hubs need to inform all its ports. There are just two places that set/clear receive_disabled, qemu_deliver_packet and qemu_flush_or_purge_queued_packets, but I think a new API is needed to implement the callback for hubs (qemu_send_enable/qemu_send_disable). Paolo
