Re: [PATCH 0/3] null driver improvements for testability

Hi Paul,

2016-01-29 16:18, Paul Atkins:

This patchset adds functionality to the null driver help when testing
a dataplane that uses dpdk.  The idea is that the the dataplane can
have multiple null interfaces attached, and each of theses can be
assigned a mac address. Packets can then be injected into the null
drivers by adding them to a ring, giving the application complete
control of the packets that arrive.  Packets that are sent by a null
driver can be stored on a ring, where the application can pick them up
and verify it is what was expected.  To allow the application to know
when packets have been pulled of the rx ring, counters of the number of
times an rx poll has been made are kept, and these can be retrieved via
the existing APIs.

I have not read your code, just read this description.
It sounds like being a ring PMD. Have you already checked it?
http://dpdk.org/browse/dpdk/tree/drivers/net/ring/rte_eth_ring.c