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net: ethernet: ti: ale: optimize ale entry mask bits configuartion

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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.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Grygorii Strashko 2017-11-30 18:21:17 -06:00 committed by David S. Miller
parent d0aef029b5
commit b5d31f2940
1 changed files with 3 additions and 10 deletions
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13
drivers/net/ethernet/ti/cpsw_ale.c
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@ -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);