[PATCH 08/11] net: ethernet: ti: ale: optimize ale entry mask bits configuartion

[Grygorii Strashko]

The ale->params.ale_ports parameter can be used to deriver values for all
ale entry mask bits: port_mask_bits, port_mask_bits, port_num_bits.
Hence, calculate above values and drop all hardcoded values. For
port_num_bits calcualtion use order_base_2() API.

Signed-off-by: Grygorii Strashko <grygorii.stras...@ti.com>
---
 drivers/net/ethernet/ti/cpsw_ale.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/ti/cpsw_ale.c 
b/drivers/net/ethernet/ti/cpsw_ale.c
index 322f87c..34f97c1 100644
--- a/drivers/net/ethernet/ti/cpsw_ale.c
+++ b/drivers/net/ethernet/ti/cpsw_ale.c
@@ -816,9 +816,9 @@ void cpsw_ale_start(struct cpsw_ale *ale)
                 "ALE Table size %ld\n", ale->params.ale_entries);
 
        /* set default bits for existing h/w */
-       ale->port_mask_bits = 3;
-       ale->port_num_bits = 2;
-       ale->vlan_field_bits = 3;
+       ale->port_mask_bits = ale->params.ale_ports;
+       ale->port_num_bits = order_base_2(ale->params.ale_ports);
+       ale->vlan_field_bits = ale->params.ale_ports;
 
        /* Set defaults override for ALE on NetCP NU switch and for version
         * 1R3
@@ -847,13 +847,6 @@ void cpsw_ale_start(struct cpsw_ale *ale)
                ale_controls[ALE_PORT_UNTAGGED_EGRESS].shift = 0;
                ale_controls[ALE_PORT_UNTAGGED_EGRESS].offset =
                                        ALE_UNKNOWNVLAN_FORCE_UNTAG_EGRESS;
-               ale->port_mask_bits = ale->params.ale_ports;
-               ale->port_num_bits = ale->params.ale_ports - 1;
-               ale->vlan_field_bits = ale->params.ale_ports;
-       } else if (ale->version == ALE_VERSION_1R3) {
-               ale->port_mask_bits = ale->params.ale_ports;
-               ale->port_num_bits = 3;
-               ale->vlan_field_bits = ale->params.ale_ports;
        }
 
        cpsw_ale_control_set(ale, 0, ALE_ENABLE, 1);
-- 
2.10.5