Hello, Patch 1~6 cleans up & prepares for supporting ublk-bpf, which should be ready to go. Patch 7~14 supports ublk-bpf over struct_ops and selftests code. And please see detailed motivation in commit log of "ublk: bpf: add bpf struct_ops" and the last document patch. Patch 15~21 adds bpf aio over struct_ops and applies it for ublk-bpf, and selftests code. Patch 22 adds document for ublk-bpf. Git tree: https://github.com/ming1/linux.git ublk_bpf_rfc https://github.com/ming1/linux/commits/ublk_bpf_rfc/ Kernel selftest: make -C tools/testing/selftests TARGETS=ublk run_tests Comments are welcome! Ming Lei (22): ublk: remove two unused fields from 'struct ublk_queue' ublk: convert several bool type fields into bitfield of `ublk_queue` ublk: add helper of ublk_need_map_io() ublk: move ublk into one standalone directory ublk: move private definitions into private header ublk: move several helpers to private header ublk: bpf: add bpf prog attach helpers ublk: bpf: add bpf struct_ops ublk: bpf: attach bpf prog to ublk device ublk: bpf: add kfunc for ublk bpf prog ublk: bpf: enable ublk-bpf selftests: ublk: add tests for the ublk-bpf initial implementation selftests: ublk: add tests for covering io split selftests: ublk: add tests for covering redirecting to userspace ublk: bpf: add bpf aio kfunc ublk: bpf: add bpf aio struct_ops ublk: bpf: attach bpf aio prog to ublk device ublk: bpf: add several ublk bpf aio kfuncs ublk: bpf: wire bpf aio with ublk io handling selftests: add tests for ublk bpf aio selftests: add tests for covering both bpf aio and split ublk: document ublk-bpf & bpf-aio Documentation/block/ublk.rst | 170 ++ MAINTAINERS | 3 +- drivers/block/Kconfig | 32 +- drivers/block/Makefile | 2 +- drivers/block/ublk/Kconfig | 52 + drivers/block/ublk/Makefile | 10 + drivers/block/ublk/bpf.c | 370 ++++ drivers/block/ublk/bpf.h | 231 +++ drivers/block/ublk/bpf_aio.c | 266 +++ drivers/block/ublk/bpf_aio.h | 118 ++ drivers/block/ublk/bpf_aio_ops.c | 174 ++ drivers/block/ublk/bpf_ops.c | 344 ++++ drivers/block/ublk/bpf_reg.h | 77 + drivers/block/{ublk_drv.c => ublk/main.c} | 267 +-- drivers/block/ublk/ublk.h | 237 +++ include/uapi/linux/ublk_cmd.h | 16 +- tools/testing/selftests/Makefile | 1 + tools/testing/selftests/ublk/.gitignore | 4 + tools/testing/selftests/ublk/Makefile | 236 +++ tools/testing/selftests/ublk/config | 2 + tools/testing/selftests/ublk/progs/ublk_bpf.h | 13 + .../selftests/ublk/progs/ublk_bpf_kfunc.h | 44 + .../testing/selftests/ublk/progs/ublk_loop.c | 166 ++ .../testing/selftests/ublk/progs/ublk_null.c | 177 ++ .../selftests/ublk/progs/ublk_stripe.c | 319 ++++ tools/testing/selftests/ublk/test_common.sh | 119 ++ tools/testing/selftests/ublk/test_loop_01.sh | 33 + tools/testing/selftests/ublk/test_loop_02.sh | 24 + tools/testing/selftests/ublk/test_null_01.sh | 19 + tools/testing/selftests/ublk/test_null_02.sh | 23 + tools/testing/selftests/ublk/test_null_03.sh | 21 + tools/testing/selftests/ublk/test_null_04.sh | 21 + .../testing/selftests/ublk/test_stripe_01.sh | 35 + .../testing/selftests/ublk/test_stripe_02.sh | 26 + tools/testing/selftests/ublk/ublk_bpf.c | 1673 +++++++++++++++++ 35 files changed, 5101 insertions(+), 224 deletions(-) create mode 100644 drivers/block/ublk/Kconfig create mode 100644 drivers/block/ublk/Makefile create mode 100644 drivers/block/ublk/bpf.c create mode 100644 drivers/block/ublk/bpf.h create mode 100644 drivers/block/ublk/bpf_aio.c create mode 100644 drivers/block/ublk/bpf_aio.h create mode 100644 drivers/block/ublk/bpf_aio_ops.c create mode 100644 drivers/block/ublk/bpf_ops.c create mode 100644 drivers/block/ublk/bpf_reg.h rename drivers/block/{ublk_drv.c => ublk/main.c} (93%) create mode 100644 drivers/block/ublk/ublk.h create mode 100644 tools/testing/selftests/ublk/.gitignore create mode 100644 tools/testing/selftests/ublk/Makefile create mode 100644 tools/testing/selftests/ublk/config create mode 100644 tools/testing/selftests/ublk/progs/ublk_bpf.h create mode 100644 tools/testing/selftests/ublk/progs/ublk_bpf_kfunc.h create mode 100644 tools/testing/selftests/ublk/progs/ublk_loop.c create mode 100644 tools/testing/selftests/ublk/progs/ublk_null.c create mode 100644 tools/testing/selftests/ublk/progs/ublk_stripe.c create mode 100755 tools/testing/selftests/ublk/test_common.sh create mode 100755 tools/testing/selftests/ublk/test_loop_01.sh create mode 100755 tools/testing/selftests/ublk/test_loop_02.sh create mode 100755 tools/testing/selftests/ublk/test_null_01.sh create mode 100755 tools/testing/selftests/ublk/test_null_02.sh create mode 100755 tools/testing/selftests/ublk/test_null_03.sh create mode 100755 tools/testing/selftests/ublk/test_null_04.sh create mode 100755 tools/testing/selftests/ublk/test_stripe_01.sh create mode 100755 tools/testing/selftests/ublk/test_stripe_02.sh create mode 100644 tools/testing/selftests/ublk/ublk_bpf.c -- 2.47.0
