This adds a new library to the Intel DPDK whereby a set of packets can be distributed one-at-a-time to a set of worker cores, with dynamic load balancing being done between those workers. Flows are identified by a tag within the mbuf (currently the RSS hash field, 32-bit value), which is used to ensure that no two packets of the same flow are processed in parallel, thereby preserving ordering.
Major changes in V2 set: * Updates to take account of Neil's comments on original patch set * Updates to fix issues highlighted by checkpatch.pl * Additional handling in library for special case when process() is called with zero mbufs Bruce Richardson (5): eal: add tailq for new distributor component distributor: new packet distributor library distributor: add distributor library to build distributor: add unit tests for distributor lib docs: add distributor lib to API docs app/test/Makefile | 2 + app/test/commands.c | 7 +- app/test/test.h | 2 + app/test/test_distributor.c | 595 +++++++++++++++++++++++++ app/test/test_distributor_perf.c | 275 ++++++++++++ config/common_bsdapp | 6 + config/common_linuxapp | 5 + doc/doxy-api-index.md | 1 + doc/doxy-api.conf | 1 + lib/Makefile | 1 + lib/librte_distributor/Makefile | 50 +++ lib/librte_distributor/rte_distributor.c | 487 ++++++++++++++++++++ lib/librte_distributor/rte_distributor.h | 186 ++++++++ lib/librte_eal/common/include/rte_tailq_elem.h | 2 + mk/rte.app.mk | 4 + 15 files changed, 1623 insertions(+), 1 deletion(-) create mode 100644 app/test/test_distributor.c create mode 100644 app/test/test_distributor_perf.c create mode 100644 lib/librte_distributor/Makefile create mode 100644 lib/librte_distributor/rte_distributor.c create mode 100644 lib/librte_distributor/rte_distributor.h -- 1.9.3
