This is heavily reworked version of previous RIB library series: https://mails.dpdk.org/archives/dev/2018-April/099492.html
Current lpm implementation while provides really good lookup performance has number of problems. One of them is very low speed for control plane operations such as add or delete a route. Another disadvantage is fixed number of bits for userdata (24 for v4 and 21 for v6) Also it is hard to introduce changes in existing LPM code or add new algorithms without breaking ABI. This patch series tries to solve this problems by: Introduce two new libraries - RIB and FIB. RIB that is Routing Information Base. It implements a control plane struct containing routes in a tree and provides fast add/del operations for routes. Also it allows to perform fast subtree traversals (i.e. retrieve existing subroutes for a given prefix). This structure will be used as a control plane helper structure for FIB implementation. Also it might be used standalone in other different places such as bitmaps for example. Second library is FIB that is Forwarding Information Base. It represents dataplane related struct and algorithms for longest prefix match. Internally it consists of two parts - RIB (control plane ops) and implementation for the dataplane tasks. Initial version provides two implementations for both ipv4 and ipv6: dummy (uses RIB as a dataplane) and DIR24_8 (same as current LPM) Due to proposed design it allows to extend FIB with new algorithms in future (for example DXR, poptrie, etc). >From our measurements we saw 10x speedup for control plane operations comparing with current LPM library (depending on prefix length distribution) ToDo: - introduce new performance measurement app. - add documentation. - add support into existing examples (l3fwd) Vladimir Medvedkin (12): rib: add RIB library test/rib: add RIB library autotests rib: add ipv6 support for RIB test/rib: add ipv6 support for RIB autotests fib: add FIB library fib: add FIB ipv6 support fib: add DIR24-8 dataplane algorithm fib: add dataplane algorithm for ipv6 test/fib: add FIB library autotests test/fib: add ipv6 support for FIB autotests test/fib: add FIB library performance autotests test/fib: add FIB library ipv6 performance autotests app/test/Makefile | 7 + app/test/autotest_data.py | 36 ++ app/test/meson.build | 14 + app/test/test_fib.c | 397 +++++++++++++++++++ app/test/test_fib6.c | 405 ++++++++++++++++++++ app/test/test_fib6_perf.c | 157 ++++++++ app/test/test_fib_perf.c | 411 ++++++++++++++++++++ app/test/test_rib.c | 351 +++++++++++++++++ app/test/test_rib6.c | 357 +++++++++++++++++ config/common_base | 11 + doc/api/doxy-api.conf.in | 2 + lib/Makefile | 4 + lib/librte_fib/Makefile | 25 ++ lib/librte_fib/dir24_8.c | 737 +++++++++++++++++++++++++++++++++++ lib/librte_fib/dir24_8.h | 36 ++ lib/librte_fib/meson.build | 8 + lib/librte_fib/rte_fib.c | 319 ++++++++++++++++ lib/librte_fib/rte_fib.h | 188 +++++++++ lib/librte_fib/rte_fib6.c | 322 ++++++++++++++++ lib/librte_fib/rte_fib6.h | 193 ++++++++++ lib/librte_fib/rte_fib_version.map | 23 ++ lib/librte_fib/trie.c | 760 +++++++++++++++++++++++++++++++++++++ lib/librte_fib/trie.h | 37 ++ lib/librte_rib/Makefile | 25 ++ lib/librte_rib/meson.build | 8 + lib/librte_rib/rte_rib.c | 532 ++++++++++++++++++++++++++ lib/librte_rib/rte_rib.h | 277 ++++++++++++++ lib/librte_rib/rte_rib6.c | 598 +++++++++++++++++++++++++++++ lib/librte_rib/rte_rib6.h | 334 ++++++++++++++++ lib/librte_rib/rte_rib_version.map | 35 ++ lib/meson.build | 4 +- mk/rte.app.mk | 2 + 32 files changed, 6614 insertions(+), 1 deletion(-) create mode 100644 app/test/test_fib.c create mode 100644 app/test/test_fib6.c create mode 100644 app/test/test_fib6_perf.c create mode 100644 app/test/test_fib_perf.c create mode 100644 app/test/test_rib.c create mode 100644 app/test/test_rib6.c create mode 100644 lib/librte_fib/Makefile create mode 100644 lib/librte_fib/dir24_8.c create mode 100644 lib/librte_fib/dir24_8.h create mode 100644 lib/librte_fib/meson.build create mode 100644 lib/librte_fib/rte_fib.c create mode 100644 lib/librte_fib/rte_fib.h create mode 100644 lib/librte_fib/rte_fib6.c create mode 100644 lib/librte_fib/rte_fib6.h create mode 100644 lib/librte_fib/rte_fib_version.map create mode 100644 lib/librte_fib/trie.c create mode 100644 lib/librte_fib/trie.h create mode 100644 lib/librte_rib/Makefile create mode 100644 lib/librte_rib/meson.build create mode 100644 lib/librte_rib/rte_rib.c create mode 100644 lib/librte_rib/rte_rib.h create mode 100644 lib/librte_rib/rte_rib6.c create mode 100644 lib/librte_rib/rte_rib6.h create mode 100644 lib/librte_rib/rte_rib_version.map -- 2.7.4
