mbox series

[0/2] eventdev: add port usage hints

Message ID 20210909125422.31144-1-harry.van.haaren@intel.com (mailing list archive)
Headers
Series eventdev: add port usage hints |

Message

Van Haaren, Harry Sept. 9, 2021, 12:54 p.m. UTC 
  These 2 patches are a suggestion to add a hint to the
struct rte_event_port_conf.event_port_cfg.

The usage of these hints is to allow an application to
identify/communicate to the PMD what ports will primarily
serve what purpose.

E.g, some ports are "mainly producers" in that they are
usually polling Ethdev RXQs (or other event sources..)
and enqueue the resulting events to the eventdev instance.
Similarly there are usages for "worker" (mainly forwards
events) and "consumer" (mainly consumes events without re-enq).

Note that these flags are *hints* only, and *functionally*
any combination of (NEW/FWD/RELEASE) is still allowed by
any port. The reason to add these is to allow a PMD to allocate
internal resource more efficiently.

Note that this implementation does not change the ABI,
as it gives a purpose to existing bits in an existing field.

Regards, -Harry


Harry van Haaren (2):
  lib/eventdev: add usage hints to port configure API
  examples/eventdev_pipeline: use port config hints

 .../pipeline_worker_generic.c                 |  2 ++
 .../eventdev_pipeline/pipeline_worker_tx.c    |  2 ++
 lib/eventdev/rte_eventdev.h                   | 23 +++++++++++++++++++
 3 files changed, 27 insertions(+)