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| author | Petr Machata <petrm@nvidia.com> | 2022-06-16 13:42:37 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-06-17 10:31:33 +0100 |
| commit | 4ec2feb26cc366e0667224cadaea1da23e95981b (patch) | |
| tree | 9d41738516fa314266f4d344a2210cd511e8e1ea /drivers/net/ethernet/mellanox/mlxsw/spectrum.c | |
| parent | b9840fe035acd4b91f30fb322328c5c196d12ab6 (diff) | |
| download | linux-stable-4ec2feb26cc366e0667224cadaea1da23e95981b.tar.gz linux-stable-4ec2feb26cc366e0667224cadaea1da23e95981b.tar.bz2 linux-stable-4ec2feb26cc366e0667224cadaea1da23e95981b.zip | |
mlxsw: Add a resource describing number of RIFs
The Spectrum ASIC has a limit on how many L3 devices (called RIFs) can be
created. The limit depends on the ASIC and FW revision, and mlxsw reads it
from the FW. In order to communicate both the number of RIFs that there can
be, and how many are taken now (i.e. occupancy), introduce a corresponding
devlink resource.
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index c949005f56dc..a62887b8d98e 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -3580,6 +3580,25 @@ mlxsw_sp_resources_rif_mac_profile_register(struct mlxsw_core *mlxsw_core) &size_params); } +static int mlxsw_sp_resources_rifs_register(struct mlxsw_core *mlxsw_core) +{ + struct devlink *devlink = priv_to_devlink(mlxsw_core); + struct devlink_resource_size_params size_params; + u64 max_rifs; + + if (!MLXSW_CORE_RES_VALID(mlxsw_core, MAX_RIFS)) + return -EIO; + + max_rifs = MLXSW_CORE_RES_GET(mlxsw_core, MAX_RIFS); + devlink_resource_size_params_init(&size_params, max_rifs, max_rifs, + 1, DEVLINK_RESOURCE_UNIT_ENTRY); + + return devlink_resource_register(devlink, "rifs", max_rifs, + MLXSW_SP_RESOURCE_RIFS, + DEVLINK_RESOURCE_ID_PARENT_TOP, + &size_params); +} + static int mlxsw_sp1_resources_register(struct mlxsw_core *mlxsw_core) { int err; @@ -3604,8 +3623,13 @@ static int mlxsw_sp1_resources_register(struct mlxsw_core *mlxsw_core) if (err) goto err_resources_rif_mac_profile_register; + err = mlxsw_sp_resources_rifs_register(mlxsw_core); + if (err) + goto err_resources_rifs_register; + return 0; +err_resources_rifs_register: err_resources_rif_mac_profile_register: err_policer_resources_register: err_resources_counter_register: @@ -3638,8 +3662,13 @@ static int mlxsw_sp2_resources_register(struct mlxsw_core *mlxsw_core) if (err) goto err_resources_rif_mac_profile_register; + err = mlxsw_sp_resources_rifs_register(mlxsw_core); + if (err) + goto err_resources_rifs_register; + return 0; +err_resources_rifs_register: err_resources_rif_mac_profile_register: err_policer_resources_register: err_resources_counter_register: |