The support of doing RSS for rte_flow_action was a cool idea but it has been broken for several releases of DPDK as the kernel and BPF infrastructure changed.
This series cleans up the BPF program, implements several features that were never completed in the original code and changes to use the current BPF toolchain. The result should be easier to read and maintain. The build process checks for the required componen Stephen Hemminger (8): net/tap: do not duplicate fd's doc: fix the requirements and building of TAP flow net/tap: remove unused RSS hash types net/tap: validate and setup parameters for BPF RSS net/tap: stop "vendoring" linux bpf headers net/tap: rewrite the RSS BPF program net/tap: use libbpf to load new BPF program net/tap: remove no longer used files .gitignore | 3 - doc/guides/linux_gsg/sys_reqs.rst | 3 + doc/guides/nics/tap.rst | 95 +- drivers/net/tap/bpf/Makefile | 19 - drivers/net/tap/bpf/README | 38 + drivers/net/tap/bpf/bpf_api.h | 276 ---- drivers/net/tap/bpf/bpf_elf.h | 53 - drivers/net/tap/bpf/bpf_extract.py | 86 -- drivers/net/tap/bpf/meson.build | 91 ++ drivers/net/tap/bpf/tap_bpf_program.c | 255 ---- drivers/net/tap/bpf/tap_rss.c | 264 ++++ drivers/net/tap/meson.build | 29 +- drivers/net/tap/rte_eth_tap.c | 199 ++- drivers/net/tap/rte_eth_tap.h | 12 +- drivers/net/tap/tap_bpf.h | 121 -- drivers/net/tap/tap_bpf_api.c | 190 --- drivers/net/tap/tap_bpf_insns.h | 1743 ------------------------- drivers/net/tap/tap_flow.c | 549 ++------ drivers/net/tap/tap_flow.h | 16 +- drivers/net/tap/tap_intr.c | 7 +- drivers/net/tap/tap_rss.h | 21 +- drivers/net/tap/tap_tcmsgs.h | 4 +- 22 files changed, 680 insertions(+), 3394 deletions(-) delete mode 100644 drivers/net/tap/bpf/Makefile create mode 100644 drivers/net/tap/bpf/README delete mode 100644 drivers/net/tap/bpf/bpf_api.h delete mode 100644 drivers/net/tap/bpf/bpf_elf.h delete mode 100644 drivers/net/tap/bpf/bpf_extract.py create mode 100644 drivers/net/tap/bpf/meson.build delete mode 100644 drivers/net/tap/bpf/tap_bpf_program.c create mode 100644 drivers/net/tap/bpf/tap_rss.c delete mode 100644 drivers/net/tap/tap_bpf.h delete mode 100644 drivers/net/tap/tap_bpf_api.c delete mode 100644 drivers/net/tap/tap_bpf_insns.h -- 2.43.0
