If application link one atomic queue to multiple ports,
and each worker core update flow_id, there will have a
chance to hit race condition issue and lead to double processing
same event. This fix solve the problem and eliminate
the race condition issue.
Fixes: 4236ce9bf5bf ("event/opdl: add OPDL ring infrastructure library")
Cc: stable@dpdk.org
Signed-off-by: Liang Ma <liang.j.ma@intel.com>
Signed-off-by: Peter Mccarthy <peter.mccarthy@intel.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
This patch ensures that the OPDL files all contain correct SPDX tags.
The following changes were made to achieve this:
* replace license text with SPDX tag
* correct occurences where SPDX tag was not on first line of file
* ensure license years were correct
Fixes: 4236ce9bf5bf ("event/opdl: add OPDL ring infrastructure library")
Fixes: 3c7f3dcfb099 ("event/opdl: add PMD main body and helper function")
Fixes: d548ef513cd7 ("event/opdl: add unit tests")
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Liang Ma <liang.j.ma@intel.com>
OPDL ring is the core infrastructure of OPDL PMD. OPDL ring library
provide the core data structure and core helper function set. The Ring
implements a single ring multi-port/stage pipelined packet distribution
mechanism. This mechanism has the following characteristics:
• No multiple queue cost, therefore, latency is significant reduced.
• Fixed dependencies between queue/ports is more suitable for complex.
fixed pipelines of stateless packet processing (static pipeline).
• Has decentralized distribution (no scheduling core).
• Packets remain in order (no reorder core(s)).
* Update build system to enable compilation.
Signed-off-by: Liang Ma <liang.j.ma@intel.com>
Signed-off-by: Peter Mccarthy <peter.mccarthy@intel.com>
Reviewed-by: Seán Harte <seanbh@gmail.com>
