net: ethernet: ti: cpsw_ale: Add cpsw_ale_restore() helper

This can be used by device driver to restore ALE context.
The data produced by cpsw_ale_dump() can be passed to
cpsw_ale_restore().

This i

net: ethernet: ti: cpsw_ale: Add cpsw_ale_restore() helper

This can be used by device driver to restore ALE context.
The data produced by cpsw_ale_dump() can be passed to
cpsw_ale_restore().

This is required as on certain platforms the ALE context
is lost on low power suspend/resume.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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drivers: net: cpsw: ale: add broadcast/multicast rate limit support

The CPSW ALE supports feature to rate limit number ingress
broadcast(BC)/multicast(MC) packets per/sec which main purpose is BC/MC

drivers: net: cpsw: ale: add broadcast/multicast rate limit support

The CPSW ALE supports feature to rate limit number ingress
broadcast(BC)/multicast(MC) packets per/sec which main purpose is BC/MC
storm prevention.

The ALE BC/MC packet rate limit configuration consist of two parts:
- global
ALE_CONTROL.ENABLE_RATE_LIMIT bit 0 which enables rate limiting globally
ALE_PRESCALE.PRESCALE specifies rate limiting interval
- per-port
ALE_PORTCTLx.BCASTMCAST/_LIMIT specifies number of BC/MC packets allowed
per rate limiting interval.
When port.BCASTMCAST/_LIMIT is 0 rate limiting is disabled for Port.

When BC/MC packet rate limiting is enabled the number of allowed packets
per/sec is defined as:
number_of_packets/sec = (Fclk / ALE_PRESCALE) * port.BCASTMCAST/_LIMIT

Hence, the ALE_PRESCALE configuration is common for all ports the 1ms
interval is selected and configured during ALE initialization while
port.BCAST/MCAST_LIMIT are configured per-port.
This allows to achieve:
- min number_of_packets = 1000 when port.BCAST/MCAST_LIMIT = 1
- max number_of_packets = 1000 * 255 = 255000
when port.BCAST/MCAST_LIMIT = 0xFF

The ALE_CONTROL.ENABLE_RATE_LIMIT can also be enabled once during ALE
initialization as rate limiting enabled by non zero port.BCASTMCAST/_LIMIT
values.

This patch implements above logic in ALE and adds new ALE APIs
cpsw_ale_rx_ratelimit_bc();
cpsw_ale_rx_ratelimit_mc();

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: ethernet: ti: cpsw_ale: add cpsw_ale_vlan_del_modify()

Add/export cpsw_ale_vlan_del_modify() and use it in cpsw_switchdev instead
of generic cpsw_ale_del_vlan() to avoid mixing 8021Q and switch

net: ethernet: ti: cpsw_ale: add cpsw_ale_vlan_del_modify()

Add/export cpsw_ale_vlan_del_modify() and use it in cpsw_switchdev instead
of generic cpsw_ale_del_vlan() to avoid mixing 8021Q and switchdev VLAN
offload. This is preparation patch equired by follow up changes.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: ti: ale: switch to use tables for vlan entry description

The ALE VLAN entries are too much differ between different TI CPSW ALE
versions. So, handling them using flags, defines and ge

net: ethernet: ti: ale: switch to use tables for vlan entry description

The ALE VLAN entries are too much differ between different TI CPSW ALE
versions. So, handling them using flags, defines and get/set functions
became over-complicated.

This patch introduces tables to describe the ALE VLAN entries fields, which
are different between TI CPSW ALE versions, and new get/set access
functions. It also allows to detect incorrect access to not available ALL
entry fields.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: ethernet: ti: am65-cpsw: enable hw auto ageing

The AM65x ALE supports HW auto-ageing which can be enabled by programming
ageing interval in ALE_AGING_TIMER register. For this CPSW fck_clk
frequ

net: ethernet: ti: am65-cpsw: enable hw auto ageing

The AM65x ALE supports HW auto-ageing which can be enabled by programming
ageing interval in ALE_AGING_TIMER register. For this CPSW fck_clk
frequency has to be know by ALE.

This patch extends cpsw_ale_params with bus_freq field and enables ALE HW
auto ageing for AM65x CPSW2G ALE version.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: ethernet: ti: ale: make usage of ale dev_id mandatory

Hence all existing driver updated to use ALE dev_id the usage of ale dev_id
can be made mandatory and cpsw_ale_create() can be updated to u

net: ethernet: ti: ale: make usage of ale dev_id mandatory

Hence all existing driver updated to use ALE dev_id the usage of ale dev_id
can be made mandatory and cpsw_ale_create() can be updated to use
"features" property from ALE static configuration.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: ethernet: ti: ale: add static configuration

As existing, as newly introduced CPSW ALE versions have differences in
supported features and ALE table formats. Especially it's actual for the
recen

net: ethernet: ti: ale: add static configuration

As existing, as newly introduced CPSW ALE versions have differences in
supported features and ALE table formats. Especially it's actual for the
recent AM65x/J721E/J7200 SoC and feature AM64x, which supports features
like: auto-aging, classifiers, Link aggregation, additional hw filtering,
etc.

Existing ALE configuration interface is not practical in terms of adding
new features and requires consumers to program a lot static parameters. Any
attempt to add new options will case endless adding and maintaining
different combination of flags and options.

Hence CPSW ALE configuration is static and fixed for SoC (or set of SoC) It
is reasonable to add support for static ALE configurations inside ALE
module. This patch adds static ALE configuration table for different ALE
versions and provides option for consumers to select required ALE
configuration by providing ALE const char *dev_id identifier.

This feature is not enabled by default until existing CPSW drivers will be
modified by follow up patches.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: ethernet: ti: ale: add cpsw_ale_get_num_entries api

Add cpsw_ale_get_num_entries() API to return number of ALE table entries
and update existing drivers to use it.

Signed-off-by: Grygorii Stra

net: ethernet: ti: ale: add cpsw_ale_get_num_entries api

Add cpsw_ale_get_num_entries() API to return number of ALE table entries
and update existing drivers to use it.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: ethernet: ti: ale: am65: add support for default thread cfg

Add support for default thread configuration for AM65x CPSW NUSS ALE to
allow route all ingress packets to one default RX UDMA flow.

net: ethernet: ti: ale: am65: add support for default thread cfg

Add support for default thread configuration for AM65x CPSW NUSS ALE to
allow route all ingress packets to one default RX UDMA flow.

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>

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

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
en

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

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>

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net: ethernet: ti: ale: modify vlan/mdb api for switchdev

A following patch introduces switchdev functionality, so modify
ALE engine VLANs/MDBs API:
- cpsw_ale_del_mcast(): update so it will remove

net: ethernet: ti: ale: modify vlan/mdb api for switchdev

A following patch introduces switchdev functionality, so modify
ALE engine VLANs/MDBs API:
- cpsw_ale_del_mcast(): update so it will remove only selected ports from
mcast port_mask or delete whole mcast record if !port_mask
- cpsw_ale_del_vlan(): update so it will remove only selected ports from
all VLAN record's masks or delete whole VLAN record if !port_mask
- add cpsw_ale_vlan_add_modify() to add or modify existing VLAN record's
masks
- add cpsw_ale_set_unreg_mcast() for enabling unreg mcast on port VLANs

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: ethernet: ti: cpsw: allow untagged traffic on host port

Now untagged vlan traffic is not support on Host P0 port. This patch adds
in ALE context bitmap of VLANs for which Host P0 port bit set i

net: ethernet: ti: cpsw: allow untagged traffic on host port

Now untagged vlan traffic is not support on Host P0 port. This patch adds
in ALE context bitmap of VLANs for which Host P0 port bit set in Force
Untagged Packet Egress bitmask in VLANs ALE entries, and adds corresponding
check in VLAN incapsulation header parsing function cpsw_rx_vlan_encap().

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: ethernet: ti: cpsw: fix allmulti cfg in dual_mac mode

Now CPSW ALE will set/clean Host port bit in Unregistered Multicast Flood
Mask (UNREG_MCAST_FLOOD_MASK) for every VLAN without checking if

net: ethernet: ti: cpsw: fix allmulti cfg in dual_mac mode

Now CPSW ALE will set/clean Host port bit in Unregistered Multicast Flood
Mask (UNREG_MCAST_FLOOD_MASK) for every VLAN without checking if this port
belongs to VLAN or not when ALLMULTI mode flag is set for nedev. This is
working in non dual_mac mode, but in dual_mac - it causes
enabling/disabling ALLMULTI flag for both ports.

Hence fix it by adding additional parameter to cpsw_ale_set_allmulti() to
specify ALE port number for which ALLMULTI has to be enabled and check if
port belongs to VLAN before modifying UNREG_MCAST_FLOOD_MASK.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: ethernet: ti: convert to SPDX license identifiers

Replace textual license with SPDX-License-Identifier.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Andrew Lunn <an

net: ethernet: ti: convert to SPDX license identifiers

Replace textual license with SPDX-License-Identifier.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: ethernet: ti: cpsw_ale: use const for API having pointer on mac address

It allows to use function under callbacks with same const qualifier of
mac address for farther changes.

Signed-off-by: I

net: ethernet: ti: cpsw_ale: use const for API having pointer on mac address

It allows to use function under callbacks with same const qualifier of
mac address for farther changes.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: ethernet: ti: ale: use devm_kzalloc in cpsw_ale_create()

Use cpsw_ale_create in cpsw_ale_create(). This also makes
cpsw_ale_destroy() function nop, so remove it.

Signed-off-by: Grygorii Strash

net: ethernet: ti: ale: use devm_kzalloc in cpsw_ale_create()

Use cpsw_ale_create in cpsw_ale_create(). This also makes
cpsw_ale_destroy() function nop, so remove it.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: netcp: ale: add proper ale entry mask bits for netcp switch ALE

For NetCP NU Switch ALE, some of the mask bits are different than
defaults used in the driver. Add a new macro DEFINE_ALE_FIELD1

net: netcp: ale: add proper ale entry mask bits for netcp switch ALE

For NetCP NU Switch ALE, some of the mask bits are different than
defaults used in the driver. Add a new macro DEFINE_ALE_FIELD1 that use
a configurable mask bits and use it in the driver. These bits are set to
correct values by using the new variables added to cpsw_ale structure
and re-used in the macros. The parameter nu_switch_ale is configured by
the caller driver to indicate the ALE is for that switch and is used in
the ALE driver to do customization as needed.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: netcp: ale: update to support unknown vlan controls for NU switch

In NU Ethernet switch used on some of the Keystone SoCs, there is
separate UNKNOWNVLAN register for membership, unreg mcast flo

net: netcp: ale: update to support unknown vlan controls for NU switch

In NU Ethernet switch used on some of the Keystone SoCs, there is
separate UNKNOWNVLAN register for membership, unreg mcast flood, reg
mcast flood and force untag egress bits in ALE. So control for these
fields require different address offset, shift and size of field.
As this ALE has the same version number as ALE in CPSW found on other
SoCs, customization based on version number is not possible. So
use a configuration parameter, nu_switch_ale, to identify the ALE
ALE found in NU Switch. Different treatment is needed for NU Switch
ALE due to difference in the ale table bits, separate unknown vlan
registers etc. The register information available in ale_controls,
needs to be updated to support the netcp NU switch h/w. So it is not
constant array any more since it needs to be updated based
on ALE type. The header of the file is also updated to indicate it
supports N port switch ALE, not just 3 port. The version mask is
3 bits in NU Switch ALE vs 8 bits on other ALE types.

While at it, change the debug print to info print so that ALE
version gets displayed in boot log.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: cpsw: remove two unused global functions

The funtions, cpsw_ale_flush and cpsw_ale_set_ageout, have never been used
since they were first introduced. This patch removes the dead code.

Signed-

net: cpsw: remove two unused global functions

The funtions, cpsw_ale_flush and cpsw_ale_set_ageout, have never been used
since they were first introduced. This patch removes the dead code.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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drivers: net: cpsw: fix multicast flush in dual emac mode

Since ALE table is a common resource for both the interfaces in Dual EMAC
mode and while bringing up the second interface in cpsw_ndo_set_rx

drivers: net: cpsw: fix multicast flush in dual emac mode

Since ALE table is a common resource for both the interfaces in Dual EMAC
mode and while bringing up the second interface in cpsw_ndo_set_rx_mode()
all the multicast entries added by the first interface is flushed out and
only second interface multicast addresses are added. Fixing this by
flushing multicast addresses based on dual EMAC port vlans which will not
affect the other emac port multicast addresses.

Fixes: d9ba8f9 (driver: net: ethernet: cpsw: dual emac interface implementation)
Cc: <stable@vger.kernel.org> # v3.9+
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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drivers: net: cpsw: Support ALLMULTI and fix IFF_PROMISC in switch mode

The cpsw driver did not support the IFF_ALLMULTI flag which makes dynamic
multicast routing not work. Related to this, when e

drivers: net: cpsw: Support ALLMULTI and fix IFF_PROMISC in switch mode

The cpsw driver did not support the IFF_ALLMULTI flag which makes dynamic
multicast routing not work. Related to this, when enabling IFF_PROMISC
in switch mode, all registered multicast addresses are flushed, resulting
in only broadcast and unicast traffic being received.

A new cpsw_ale_set_allmulti function now scans through the ALE entry
table and adds/removes the host port from the unregistered multicast
port mask of each vlan entry depending on the state of IFF_ALLMULTI.
In promiscious mode, cpsw_ale_set_allmulti is used to force reception
of all multicast traffic in addition to the unicast and broadcast traffic.

With this change dynamic multicast and promiscious mode both work in
switch mode.

Signed-off-by: Len Sorensen <lsorense@csclub.uwaterloo.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

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drivers: net: cpsw: Support ALLMULTI and fix IFF_PROMISC in switch mode

The cpsw driver did not support the IFF_ALLMULTI flag which makes dynamic
multicast routing not work. Related to this, when e

drivers: net: cpsw: Support ALLMULTI and fix IFF_PROMISC in switch mode

The cpsw driver did not support the IFF_ALLMULTI flag which makes dynamic
multicast routing not work. Related to this, when enabling IFF_PROMISC
in switch mode, all registered multicast addresses are flushed, resulting
in only broadcast and unicast traffic being received.

A new cpsw_ale_set_allmulti function now scans through the ALE entry
table and adds/removes the host port from the unregistered multicast
port mask of each vlan entry depending on the state of IFF_ALLMULTI.
In promiscious mode, cpsw_ale_set_allmulti is used to force reception
of all multicast traffic in addition to the unicast and broadcast traffic.

With this change dynamic multicast and promiscious mode both work in
switch mode.

Signed-off-by: Len Sorensen <lsorense@csclub.uwaterloo.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

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drivers: net: cpsw: add support to dump ALE table via ethtool register dump

Add support to view addresses added by the driver and learnt by the
hardware from ALE table via ethtool register dump inte

drivers: net: cpsw: add support to dump ALE table via ethtool register dump

Add support to view addresses added by the driver and learnt by the
hardware from ALE table via ethtool register dump interface.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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drivers: net: cpsw: enable promiscuous mode support

Enable promiscuous mode support for CPSW.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net:ethernet: cpsw: add support for VLAN

adding support for VLAN interface for cpsw.

CPSW VLAN Capability
* Can filter VLAN packets in Hardware

Signed-off-by: Mugunthan V N <mugunthanvnm@

drivers: net:ethernet: cpsw: add support for VLAN

adding support for VLAN interface for cpsw.

CPSW VLAN Capability
* Can filter VLAN packets in Hardware

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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