Messages in this thread | | | Date | Wed, 8 Dec 2021 11:24:57 +0200 | From | Leon Romanovsky <> | Subject | Re: [PATCH net-next v2 6/6] net/mlx5: Let user configure max_macs generic param |
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On Wed, Dec 08, 2021 at 09:03:50AM +0200, Shay Drory wrote: > Currently, max_macs is taking 70Kbytes of memory per function. This > size is not needed in all use cases, and is critical with large scale. > Hence, allow user to configure the number of max_macs. > > For example, to reduce the number of max_macs to 1, execute:: > $ devlink dev param set pci/0000:00:0b.0 name max_macs value 1 \ > cmode driverinit > $ devlink dev reload pci/0000:00:0b.0 > > Signed-off-by: Shay Drory <shayd@nvidia.com> > Reviewed-by: Moshe Shemesh <moshe@nvidia.com> > Reviewed-by: Parav Pandit <parav@nvidia.com> > --- > Documentation/networking/devlink/mlx5.rst | 3 + > .../net/ethernet/mellanox/mlx5/core/devlink.c | 67 +++++++++++++++++++ > .../net/ethernet/mellanox/mlx5/core/main.c | 21 ++++++ > include/linux/mlx5/mlx5_ifc.h | 2 +- > 4 files changed, 92 insertions(+), 1 deletion(-)
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> diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h > index fbaab440a484..e9db12aae8f9 100644 > --- a/include/linux/mlx5/mlx5_ifc.h > +++ b/include/linux/mlx5/mlx5_ifc.h > @@ -1621,7 +1621,7 @@ struct mlx5_ifc_cmd_hca_cap_bits { > > u8 ext_stride_num_range[0x1]; > u8 roce_rw_supported[0x1]; > - u8 reserved_at_3a2[0x1]; > + u8 log_max_current_uc_list_wr_supported[0x1]; > u8 log_max_stride_sz_rq[0x5]; > u8 reserved_at_3a8[0x3]; > u8 log_min_stride_sz_rq[0x5];
All IFC changes should be in separate patch and need to go to shared branch (mlx5-next).
Thanks
> -- > 2.21.3 >
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