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net: ethernet: ti: ale: add support for mac-only mode

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The new CPSW ALE version, available on TI K3 AM654/J721E SoCs family,
allows to switch any external port to MAC only mode. When MAC only mode
enabled this port be treated like a MAC port for the host. All traffic
received is only sent to the host. The host must direct traffic to this
port as the lookup engine will not send traffic to the ports with the
p0_maconly bit set and the p0_no_learn also set. If p0_maconly bit is set
and the p0_no_learn is not set, the host can send non-directed packets that
can be sent to the destination of a MacOnly port. It is also possible that
The host can broadcast to all ports including MacOnly ports in this mode.

This patch add ALE supprt for MAC only mode.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Tested-by: Murali Karicheri <m-karicheri2@ti.com>
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Grygorii Strashko 2020-03-24 00:52:46 +02:00 committed by David S. Miller
parent 9d1f644727
commit 6c0b849c47
2 changed files with 18 additions and 0 deletions
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16
drivers/net/ethernet/ti/cpsw_ale.c
View File

@ -779,6 +779,22 @@ static struct ale_control_info ale_controls[ALE_NUM_CONTROLS] = {
.port_shift = 0,
.bits = 1,
},
[ALE_PORT_MACONLY] = {
.name = "mac_only_port_mode",
.offset = ALE_PORTCTL,
.port_offset = 4,
.shift = 11,
.port_shift = 0,
.bits = 1,
},
[ALE_PORT_MACONLY_CAF] = {
.name = "mac_only_port_caf",
.offset = ALE_PORTCTL,
.port_offset = 4,
.shift = 13,
.port_shift = 0,
.bits = 1,
},
[ALE_PORT_MCAST_LIMIT] = {
.name = "mcast_limit",
.offset = ALE_PORTCTL,

2
drivers/net/ethernet/ti/cpsw_ale.h
View File

@ -62,6 +62,8 @@ enum cpsw_ale_control {
ALE_PORT_UNKNOWN_MCAST_FLOOD,
ALE_PORT_UNKNOWN_REG_MCAST_FLOOD,
ALE_PORT_UNTAGGED_EGRESS,
ALE_PORT_MACONLY,
ALE_PORT_MACONLY_CAF,
ALE_PORT_BCAST_LIMIT,
ALE_PORT_MCAST_LIMIT,
ALE_NUM_CONTROLS,