e5f456a98d
IN_ORDER Rx function depends on merge-able feature. Descriptors
allocation and free will be done in bulk.
Virtio dequeue logic:
dequeue_burst_rx(burst mbufs)
for (each mbuf b) {
if (b need merge) {
merge remained mbufs
add merged mbuf to return mbufs list
} else {
add mbuf to return mbufs list
}
}
if (last mbuf c need merge) {
dequeue_burst_rx(required mbufs)
merge last mbuf c
}
refill_avail_ring_bulk()
update_avail_ring()
return mbufs list
IN_ORDER Tx function can support offloading features. Packets which
matched "can_push" option will be handled by simple xmit function. Those
packets can't match "can_push" will be handled by original xmit function
with in-order flag.
Virtio enqueue logic:
xmit_cleanup(used descs)
for (each xmit mbuf b) {
if (b can inorder xmit) {
add mbuf b to inorder burst list
continue
} else {
xmit inorder burst list
xmit mbuf b by original function
}
}
if (inorder burst list not empty) {
xmit inorder burst list
}
update_avail_ring()
Signed-off-by: Marvin Liu <yong.liu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
DPDK is a set of libraries and drivers for fast packet processing. It supports many processor architectures and both FreeBSD and Linux. The DPDK uses the Open Source BSD-3-Clause license for the core libraries and drivers. The kernel components are GPL-2.0 licensed. Please check the doc directory for release notes, API documentation, and sample application information. For questions and usage discussions, subscribe to: users@dpdk.org Report bugs and issues to the development mailing list: dev@dpdk.org