mbox series

[hid,v12,00/15] Introduce eBPF support for HID devices

Message ID 20221103155756.687789-1-benjamin.tissoires@redhat.com (mailing list archive)
Headers show
Series Introduce eBPF support for HID devices | expand

Message

Benjamin Tissoires Nov. 3, 2022, 3:57 p.m. UTC 
Hi,

and here comes the v12 of the HID-BPF series.

Again, for a full explanation of HID-BPF, please refer to the last patch
in this series (15/15).

This revision contains most notably few fixes from the various kernel CI
bots. I also took Alexei's review into account, and we do not pollute
tools/include with useless hid headers.

I also removed most of the last checkpatch complains about adding
external kfunc declarations in C files. And this led me to also show in
samples/ how we can link together 2 BPF object files. Impressive how
easy it is :)

Cheers,
Benjamin

Benjamin Tissoires (15):
  HID: fix I2C_HID not selected when I2C_HID_OF_ELAN is
  HID: Kconfig: split HID support and hid-core compilation
  HID: initial BPF implementation
  selftests: add tests for the HID-bpf initial implementation
  HID: bpf jmp table: simplify the logic of cleaning up programs
  HID: bpf: allocate data memory for device_event BPF programs
  selftests/hid: add test to change the report size
  HID: bpf: introduce hid_hw_request()
  selftests/hid: add tests for bpf_hid_hw_request
  HID: bpf: allow to change the report descriptor
  selftests/hid: add report descriptor fixup tests
  selftests/hid: Add a test for BPF_F_INSERT_HEAD
  samples/hid: add new hid BPF example
  samples/hid: add Surface Dial example
  Documentation: add HID-BPF docs

 Documentation/hid/hid-bpf.rst                 | 512 +++++++++++
 Documentation/hid/index.rst                   |   1 +
 MAINTAINERS                                   |   3 +
 drivers/Makefile                              |   2 +-
 drivers/hid/Kconfig                           |  18 +-
 drivers/hid/Makefile                          |   2 +
 drivers/hid/amd-sfh-hid/Kconfig               |   2 +-
 drivers/hid/bpf/Kconfig                       |  17 +
 drivers/hid/bpf/Makefile                      |  11 +
 drivers/hid/bpf/entrypoints/Makefile          |  93 ++
 drivers/hid/bpf/entrypoints/README            |   4 +
 drivers/hid/bpf/entrypoints/entrypoints.bpf.c |  34 +
 .../hid/bpf/entrypoints/entrypoints.lskel.h   | 330 +++++++
 drivers/hid/bpf/hid_bpf_dispatch.c            | 531 +++++++++++
 drivers/hid/bpf/hid_bpf_dispatch.h            |  28 +
 drivers/hid/bpf/hid_bpf_jmp_table.c           | 565 ++++++++++++
 drivers/hid/hid-core.c                        |  34 +-
 drivers/hid/i2c-hid/Kconfig                   |   4 +-
 include/linux/hid.h                           |   5 +
 include/linux/hid_bpf.h                       | 163 ++++
 samples/hid/.gitignore                        |   8 +
 samples/hid/Makefile                          | 250 ++++++
 samples/hid/Makefile.target                   |  75 ++
 samples/hid/hid_bpf_attach.bpf.c              |  18 +
 samples/hid/hid_bpf_attach.h                  |  14 +
 samples/hid/hid_bpf_helpers.h                 |  21 +
 samples/hid/hid_mouse.bpf.c                   | 112 +++
 samples/hid/hid_mouse.c                       | 155 ++++
 samples/hid/hid_surface_dial.bpf.c            | 134 +++
 samples/hid/hid_surface_dial.c                | 226 +++++
 tools/testing/selftests/Makefile              |   1 +
 tools/testing/selftests/hid/.gitignore        |   4 +
 tools/testing/selftests/hid/Makefile          | 233 +++++
 tools/testing/selftests/hid/config            |  20 +
 tools/testing/selftests/hid/hid_bpf.c         | 845 ++++++++++++++++++
 tools/testing/selftests/hid/progs/hid.c       | 196 ++++
 .../selftests/hid/progs/hid_bpf_helpers.h     |  21 +
 37 files changed, 4682 insertions(+), 10 deletions(-)
 create mode 100644 Documentation/hid/hid-bpf.rst
 create mode 100644 drivers/hid/bpf/Kconfig
 create mode 100644 drivers/hid/bpf/Makefile
 create mode 100644 drivers/hid/bpf/entrypoints/Makefile
 create mode 100644 drivers/hid/bpf/entrypoints/README
 create mode 100644 drivers/hid/bpf/entrypoints/entrypoints.bpf.c
 create mode 100644 drivers/hid/bpf/entrypoints/entrypoints.lskel.h
 create mode 100644 drivers/hid/bpf/hid_bpf_dispatch.c
 create mode 100644 drivers/hid/bpf/hid_bpf_dispatch.h
 create mode 100644 drivers/hid/bpf/hid_bpf_jmp_table.c
 create mode 100644 include/linux/hid_bpf.h
 create mode 100644 samples/hid/.gitignore
 create mode 100644 samples/hid/Makefile
 create mode 100644 samples/hid/Makefile.target
 create mode 100644 samples/hid/hid_bpf_attach.bpf.c
 create mode 100644 samples/hid/hid_bpf_attach.h
 create mode 100644 samples/hid/hid_bpf_helpers.h
 create mode 100644 samples/hid/hid_mouse.bpf.c
 create mode 100644 samples/hid/hid_mouse.c
 create mode 100644 samples/hid/hid_surface_dial.bpf.c
 create mode 100644 samples/hid/hid_surface_dial.c
 create mode 100644 tools/testing/selftests/hid/.gitignore
 create mode 100644 tools/testing/selftests/hid/Makefile
 create mode 100644 tools/testing/selftests/hid/config
 create mode 100644 tools/testing/selftests/hid/hid_bpf.c
 create mode 100644 tools/testing/selftests/hid/progs/hid.c
 create mode 100644 tools/testing/selftests/hid/progs/hid_bpf_helpers.h

Comments

Jiri Kosina Nov. 15, 2022, 3:32 p.m. UTC | #1 
On Thu, 3 Nov 2022, Benjamin Tissoires wrote:

> Hi,
> 
> and here comes the v12 of the HID-BPF series.
> 
> Again, for a full explanation of HID-BPF, please refer to the last patch
> in this series (15/15).
> 
> This revision contains most notably few fixes from the various kernel CI
> bots. I also took Alexei's review into account, and we do not pollute
> tools/include with useless hid headers.
> 
> I also removed most of the last checkpatch complains about adding
> external kfunc declarations in C files. And this led me to also show in
> samples/ how we can link together 2 BPF object files. Impressive how
> easy it is :)
> 
> Cheers,
> Benjamin
> 
> Benjamin Tissoires (15):
>   HID: fix I2C_HID not selected when I2C_HID_OF_ELAN is
>   HID: Kconfig: split HID support and hid-core compilation
>   HID: initial BPF implementation
>   selftests: add tests for the HID-bpf initial implementation
>   HID: bpf jmp table: simplify the logic of cleaning up programs
>   HID: bpf: allocate data memory for device_event BPF programs
>   selftests/hid: add test to change the report size
>   HID: bpf: introduce hid_hw_request()
>   selftests/hid: add tests for bpf_hid_hw_request
>   HID: bpf: allow to change the report descriptor
>   selftests/hid: add report descriptor fixup tests
>   selftests/hid: Add a test for BPF_F_INSERT_HEAD
>   samples/hid: add new hid BPF example
>   samples/hid: add Surface Dial example
>   Documentation: add HID-BPF docs

This (apart from the first patch, which I've carved out into the fixes 
branch) is now in hid.git#for-6.2/hid-bpf

Thanks a lot for all the effort invested into this, Benjamin!