diff options
| author | Alexei Lazar <alazar@nvidia.com> | 2026-03-09 11:34:27 +0200 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2026-03-16 16:23:00 -0400 |
| commit | f8e761655997cc0ee434fb5f35570d2e93d3a707 (patch) | |
| tree | 1dff795e03f97d5b5eddf1246dbe914e1368f522 /include/linux | |
| parent | 385a06f74ff7a03e3fb0b15fb87cfeb052d75073 (diff) | |
net/mlx5: Add IFC bits for shared headroom pool PBMC support
Add hardware interface definitions for shared headroom pool (SHP) in
port buffer management:
- shp_pbmc_pbsr_support: capability bit in PCAM enhanced features
indicating device support for shared headroom pool in PBMC/PBSR.
- shared_headroom_pool: buffer entry in PBMC register (pbmc_reg_bits)
for the shared headroom pool configuration, reusing the bufferx
layout; reduce trailing reserved region accordingly.
Signed-off-by: Alexei Lazar <alazar@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260309093435.1850724-2-tariqt@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mlx5/mlx5_ifc.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index a3948b36820d..a76c54bf1927 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -10845,7 +10845,9 @@ struct mlx5_ifc_pcam_enhanced_features_bits { u8 fec_200G_per_lane_in_pplm[0x1]; u8 reserved_at_1e[0x2a]; u8 fec_100G_per_lane_in_pplm[0x1]; - u8 reserved_at_49[0xa]; + u8 reserved_at_49[0x2]; + u8 shp_pbmc_pbsr_support[0x1]; + u8 reserved_at_4c[0x7]; u8 buffer_ownership[0x1]; u8 resereved_at_54[0x14]; u8 fec_50G_per_lane_in_pplm[0x1]; @@ -12090,8 +12092,9 @@ struct mlx5_ifc_pbmc_reg_bits { u8 port_buffer_size[0x10]; struct mlx5_ifc_bufferx_reg_bits buffer[10]; + struct mlx5_ifc_bufferx_reg_bits shared_headroom_pool; - u8 reserved_at_2e0[0x80]; + u8 reserved_at_320[0x40]; }; struct mlx5_ifc_sbpr_reg_bits { |