This RFC series adds a new regexdev PMD based on Hyperscan. Goal: provide a software regex PMD for environments without regex HW, while keeping compatibility with the standard ``rte_regexdev`` API. The PMD is a virtual device, created with ``--vdev=regex_hs`` at EAL init.
The series introduces: - a new vdev driver under ``drivers/regex/hs`` - device and queue pair configuration, start/stop/close lifecycle, and device dump support - rule database update, compile+activate, import/export of serialized Hyperscan databases - enqueue/dequeue burst paths with per-queue-pair scratch usage and per-queue-pair extended statistics (enqueued/dequeued/matches) - PMD-private rule flag mappings for common Hyperscan compile options (singlematch, prefilter, SOM-leftmost, combination, quiet) Behavior notes relevant for review: - per-op match counters are bounded by API field width (``nb_matches``/``nb_actual_matches`` are ``uint16_t``) - payload size exposed through regexdev is ``max_payload_size = 65535`` bytes, while Hyperscan block mode itself supports larger scan buffers - queue pairs are intended for single-thread ownership (SPSC model) with dedicated scratch per queue pair Documentation, feature matrix integration, meson integration, and maintainers metadata are included. Prudvi Deti (7): regex/hs: add driver skeleton and build integration regex/hs: add device configure and queue pair setup regex/hs: add rule database update and compilation regex/hs: add enqueue and dequeue burst paths regex/hs: add per-queue-pair extended statistics regex/hs: add start stop close and device dump regex/hs: add Hyperscan compile flag support .mailmap | 1 + MAINTAINERS | 6 + doc/guides/regexdevs/features/hs.ini | 8 + doc/guides/regexdevs/hs.rst | 158 +++ doc/guides/regexdevs/index.rst | 1 + doc/guides/rel_notes/release_26_11.rst | 7 + drivers/regex/hs/hs_regex.c | 1342 ++++++++++++++++++++++++ drivers/regex/hs/hs_regex.h | 89 ++ drivers/regex/hs/meson.build | 19 + drivers/regex/meson.build | 1 + 10 files changed, 1632 insertions(+) create mode 100644 doc/guides/regexdevs/features/hs.ini create mode 100644 doc/guides/regexdevs/hs.rst create mode 100644 drivers/regex/hs/hs_regex.c create mode 100644 drivers/regex/hs/hs_regex.h create mode 100644 drivers/regex/hs/meson.build -- 2.43.0
