diff options
| author | Jiri Pirko <jiri@nvidia.com> | 2022-04-18 09:42:29 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-04-18 13:00:18 +0300 |
| commit | bac62191a3d4dddc4dbfddb4187d4952380c29c7 (patch) | |
| tree | 518735c450e6b0ddbf915dc131f25f5575080948 /drivers/net | |
| parent | b837585985386e05478cb17868d23a6fa87c4f8d (diff) | |
| download | linux-bac62191a3d4dddc4dbfddb4187d4952380c29c7.tar.xz | |
mlxsw: spectrum: Allow lane to start from non-zero index
So far, the lane index always started from zero. That is not true for
modular systems with gearbox-equipped linecards. Loose the check so the
lanes can start from non-zero index.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index 684910ca7cf4..120880fad7f8 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -486,6 +486,7 @@ mlxsw_sp_port_module_info_get(struct mlxsw_sp *mlxsw_sp, u16 local_port, { char pmlp_pl[MLXSW_REG_PMLP_LEN]; bool separate_rxtx; + u8 first_lane; u8 module; u8 width; int err; @@ -498,6 +499,7 @@ mlxsw_sp_port_module_info_get(struct mlxsw_sp *mlxsw_sp, u16 local_port, module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0); width = mlxsw_reg_pmlp_width_get(pmlp_pl); separate_rxtx = mlxsw_reg_pmlp_rxtx_get(pmlp_pl); + first_lane = mlxsw_reg_pmlp_tx_lane_get(pmlp_pl, 0); if (width && !is_power_of_2(width)) { dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unsupported module config: width value is not power of 2\n", @@ -518,7 +520,7 @@ mlxsw_sp_port_module_info_get(struct mlxsw_sp *mlxsw_sp, u16 local_port, local_port); return -EINVAL; } - if (mlxsw_reg_pmlp_tx_lane_get(pmlp_pl, i) != i) { + if (mlxsw_reg_pmlp_tx_lane_get(pmlp_pl, i) != i + first_lane) { dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unsupported module config: TX and RX lane numbers are not sequential\n", local_port); return -EINVAL; |