mlxsw: spectrum_buffers: Pass SBPM min_size in cells

The SBPM register configures the shared buffer allocation and
configuration per port and pool. The min_buff value is the buffer size
dedicated to this single function, and is configured in cells.
Currently, all sb_pm entries have 0 for min_buff, and therefore the
actual unit is immaterial. However, in a follow-up patch we want to add
entries with non-zero minimum.

Therefore pass the min_buff from the sb_pm table through the cell
conversion before handing it over to mlxsw_sp_sb_pm_write().

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c
index de51f56..021b7c2 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c
@@ -523,9 +523,11 @@ static int mlxsw_sp_port_sb_pms_init(struct mlxsw_sp_port *mlxsw_sp_port)
 
        for (i = 0; i < MLXSW_SP_SB_PMS_LEN; i++) {
                const struct mlxsw_sp_sb_pm *pm = &mlxsw_sp_sb_pms[i];
+               u32 min_buff;
 
+               min_buff = mlxsw_sp_bytes_cells(mlxsw_sp, pm->min_buff);
                err = mlxsw_sp_sb_pm_write(mlxsw_sp, mlxsw_sp_port->local_port,
-                                          i, pm->min_buff, pm->max_buff);
+                                          i, min_buff, pm->max_buff);
                if (err)
                        return err;
        }