05/04/2018 17:33, Thomas Monjalon: > Some DPDK applications wrongly assume these requirements: > - no hotplug, i.e. ports are never detached > - all allocated ports are available to the application > > Such application iterates over ports by its own mean. > The most common pattern is to request the port count and > assume ports with index in the range [0..count[ can be used. > > There are three consequences when using such wrong design: > - new ports having an index higher than the port count won't be seen > - old ports being detached (RTE_ETH_DEV_UNUSED) can be seen as ghosts > - failsafe sub-devices (RTE_ETH_DEV_DEFERRED) will be seen by the > application > > Such mistake will be less common with growing hotplug awareness. > All applications and examples inside this repository - except testpmd - > must be fixed to use the iterator RTE_ETH_FOREACH_DEV, > and to use the function rte_eth_dev_is_valid_port. > > In order to fix this common mistake in all external applications, > the function rte_eth_dev_count is deprecated, while introducing > the new functions rte_eth_dev_count_avail and rte_eth_dev_count_total.
The RFC was sent on 9th of March, and this v2 is available since 5th of April, without any comment. Applied
