[bpf,V4,0/5] XDP-hints: API change for RX-hash kfunc bpf_xdp_metadata_rx_hash

Message

Jesper Dangaard Brouer March 31, 2023, 3:03 p.m. UTC

Current API for bpf_xdp_metadata_rx_hash() returns the raw RSS hash value,
but doesn't provide information on the RSS hash type (part of 6.3-rc).

This patchset proposal is to change the function call signature via adding
a pointer value argument for providing the RSS hash type.

---

Jesper Dangaard Brouer (5):
      xdp: rss hash types representation
      mlx5: bpf_xdp_metadata_rx_hash add xdp rss hash type
      veth: bpf_xdp_metadata_rx_hash add xdp rss hash type
      mlx4: bpf_xdp_metadata_rx_hash add xdp rss hash type
      selftests/bpf: Adjust bpf_xdp_metadata_rx_hash for new arg


 drivers/net/ethernet/mellanox/mlx4/en_rx.c    | 22 ++++++-
 drivers/net/ethernet/mellanox/mlx4/mlx4_en.h  |  3 +-
 .../net/ethernet/mellanox/mlx5/core/en/xdp.c  | 63 ++++++++++++++++++-
 drivers/net/veth.c                            | 11 +++-
 include/linux/mlx5/device.h                   | 14 ++++-
 include/linux/netdevice.h                     |  3 +-
 include/net/xdp.h                             | 48 ++++++++++++++
 net/core/xdp.c                                | 10 ++-
 .../selftests/bpf/prog_tests/xdp_metadata.c   |  2 +
 .../selftests/bpf/progs/xdp_hw_metadata.c     | 14 +++--
 .../selftests/bpf/progs/xdp_metadata.c        |  6 +-
 .../selftests/bpf/progs/xdp_metadata2.c       |  7 ++-
 tools/testing/selftests/bpf/xdp_hw_metadata.c |  2 +-
 tools/testing/selftests/bpf/xdp_metadata.h    |  1 +
 14 files changed, 182 insertions(+), 24 deletions(-)

--

Comments

Stanislav Fomichev March 31, 2023, 4:30 p.m. UTC | #1

On 03/31, Jesper Dangaard Brouer wrote:
> Current API for bpf_xdp_metadata_rx_hash() returns the raw RSS hash value,
> but doesn't provide information on the RSS hash type (part of 6.3-rc).
> 
> This patchset proposal is to change the function call signature via adding
> a pointer value argument for providing the RSS hash type.

Acked-by: Stanislav Fomichev <[e-mail]>

> ---
> 
> Jesper Dangaard Brouer (5):
>       xdp: rss hash types representation
>       mlx5: bpf_xdp_metadata_rx_hash add xdp rss hash type
>       veth: bpf_xdp_metadata_rx_hash add xdp rss hash type
>       mlx4: bpf_xdp_metadata_rx_hash add xdp rss hash type
>       selftests/bpf: Adjust bpf_xdp_metadata_rx_hash for new arg
> 
> 
>  drivers/net/ethernet/mellanox/mlx4/en_rx.c    | 22 ++++++-
>  drivers/net/ethernet/mellanox/mlx4/mlx4_en.h  |  3 +-
>  .../net/ethernet/mellanox/mlx5/core/en/xdp.c  | 63 ++++++++++++++++++-
>  drivers/net/veth.c                            | 11 +++-
>  include/linux/mlx5/device.h                   | 14 ++++-
>  include/linux/netdevice.h                     |  3 +-
>  include/net/xdp.h                             | 48 ++++++++++++++
>  net/core/xdp.c                                | 10 ++-
>  .../selftests/bpf/prog_tests/xdp_metadata.c   |  2 +
>  .../selftests/bpf/progs/xdp_hw_metadata.c     | 14 +++--
>  .../selftests/bpf/progs/xdp_metadata.c        |  6 +-
>  .../selftests/bpf/progs/xdp_metadata2.c       |  7 ++-
>  tools/testing/selftests/bpf/xdp_hw_metadata.c |  2 +-
>  tools/testing/selftests/bpf/xdp_metadata.h    |  1 +
>  14 files changed, 182 insertions(+), 24 deletions(-)
> 
> --
>