net: ti: icssg-prueth: Split out common object into module

icssg_prueth.c and icssg_prueth_sr1.c drivers use multiple common .c
files. These common objects are getting added to multiple modules. As

net: ti: icssg-prueth: Split out common object into module

icssg_prueth.c and icssg_prueth_sr1.c drivers use multiple common .c
files. These common objects are getting added to multiple modules. As a
result when both drivers are enabled in .config, below warning is seen.

drivers/net/ethernet/ti/Makefile: icssg/icssg_common.o is added to multiple modules: icssg-prueth icssg-prueth-sr1
drivers/net/ethernet/ti/Makefile: icssg/icssg_classifier.o is added to multiple modules: icssg-prueth icssg-prueth-sr1
drivers/net/ethernet/ti/Makefile: icssg/icssg_config.o is added to multiple modules: icssg-prueth icssg-prueth-sr1
drivers/net/ethernet/ti/Makefile: icssg/icssg_mii_cfg.o is added to multiple modules: icssg-prueth icssg-prueth-sr1
drivers/net/ethernet/ti/Makefile: icssg/icssg_stats.o is added to multiple modules: icssg-prueth icssg-prueth-sr1
drivers/net/ethernet/ti/Makefile: icssg/icssg_ethtool.o is added to multiple modules: icssg-prueth icssg-prueth-sr1

Fix this by building a new module (icssg.o) for all the common objects.
Both the driver can then depend on this common module.

Some APIs being exported have emac_ as the prefix which may result into
confusion with other existing APIs with emac_ prefix, to avoid
confusion, rename the APIs being exported with emac_ to icssg_ prefix.

This also fixes below error seen when both drivers are built.
ERROR: modpost: "icssg_queue_pop"
[drivers/net/ethernet/ti/icssg-prueth-sr1.ko] undefined!
ERROR: modpost: "icssg_queue_push"
[drivers/net/ethernet/ti/icssg-prueth-sr1.ko] undefined!

Reported-and-tested-by: Thorsten Leemhuis <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Fixes: 487f7323f39a ("net: ti: icssg-prueth: Add helper functions to configure FDB")
Reviewed-by: Roger Quadros <[email protected]>
Signed-off-by: MD Danish Anwar <[email protected]>
Reviewed-by: Sai Krishna <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

show more ...

net: ti: icssg-prueth: Add support for ICSSG switch firmware

Add support for ICSSG switch firmware using existing Dual EMAC driver
with switchdev.

Limitations:
VLAN offloading is limited to 0-256 I

net: ti: icssg-prueth: Add support for ICSSG switch firmware

Add support for ICSSG switch firmware using existing Dual EMAC driver
with switchdev.

Limitations:
VLAN offloading is limited to 0-256 IDs.
MDB/FDB static entries are limited to 511 entries and different FDBs can
hash to same bucket and thus may not completely offloaded

Example assuming ETH1 and ETH2 as ICSSG2 interfaces:

Switch to ICSSG Switch mode:
ip link add name br0 type bridge
ip link set dev eth1 master br0
ip link set dev eth2 master br0
ip link set dev br0 up
bridge vlan add dev br0 vid 1 pvid untagged self

Going back to Dual EMAC mode:

ip link set dev br0 down
ip link set dev eth1 nomaster
ip link set dev eth2 nomaster
ip link del name br0 type bridge

By default, Dual EMAC firmware is loaded, and can be changed to switch
mode by above steps

Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: MD Danish Anwar <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>

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net: ti: icssg-prueth: Add ICSSG Ethernet driver for AM65x SR1.0 platforms

Add the PRUeth driver for the ICSSG subsystem found in AM65x SR1.0 devices.
The main differences that set SR1.0 and SR2.0 a

net: ti: icssg-prueth: Add ICSSG Ethernet driver for AM65x SR1.0 platforms

Add the PRUeth driver for the ICSSG subsystem found in AM65x SR1.0 devices.
The main differences that set SR1.0 and SR2.0 apart are the missing TXPRU
core in SR1.0, two extra DMA channels for management purposes and different
firmware that needs to be configured accordingly.

Based on the work of Roger Quadros, Vignesh Raghavendra and
Grygorii Strashko in TI's 5.10 SDK [1].

[1]: https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/tree/?h=ti-linux-5.10.y

Co-developed-by: Jan Kiszka <[email protected]>
Signed-off-by: Jan Kiszka <[email protected]>
Signed-off-by: Diogo Ivo <[email protected]>
Reviewed-by: MD Danish Anwar <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>

show more ...

net: ti: icssg-prueth: Move common functions into a separate file

In order to allow code sharing between Silicon Revisions 1.0 and 2.0
move all functions that can be shared into a common file. This

net: ti: icssg-prueth: Move common functions into a separate file

In order to allow code sharing between Silicon Revisions 1.0 and 2.0
move all functions that can be shared into a common file. This commit
introduces no functional changes.

Signed-off-by: Diogo Ivo <[email protected]>
Reviewed-by: MD Danish Anwar <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>

show more ...

net: ethernet: am65-cpsw: Rename TI_AM65_CPSW_TAS to TI_AM65_CPSW_QOS

We will use this Kconfig option to not only enable TAS/EST offload
but also other QoS features like Multiqueue priority descript

net: ethernet: am65-cpsw: Rename TI_AM65_CPSW_TAS to TI_AM65_CPSW_QOS

We will use this Kconfig option to not only enable TAS/EST offload
but also other QoS features like Multiqueue priority descriptors
and MAC-Merge/Frame Preemption. TI_AM65_CPSW_QOS seems a more
appropriate Kconfig option name than TI_AM65_CPSW_TAS.

Signed-off-by: Roger Quadros <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

show more ...

net: ethernet: am65-cpsw: Build am65-cpsw-qos only if required

Build am65-cpsw-qos only if CONFIG_TI_AM65_CPSW_TAS is enabled.

Signed-off-by: Roger Quadros <[email protected]>
Reviewed-by: Vladimir

net: ethernet: am65-cpsw: Build am65-cpsw-qos only if required

Build am65-cpsw-qos only if CONFIG_TI_AM65_CPSW_TAS is enabled.

Signed-off-by: Roger Quadros <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

show more ...

net: ethernet: ti: Fix mixed module-builtin object

With CONFIG_TI_K3_AM65_CPSW_NUSS=y and CONFIG_TI_ICSSG_PRUETH=m,
k3-cppi-desc-pool.o is linked to a module and also to vmlinux even though
the expe

net: ethernet: ti: Fix mixed module-builtin object

With CONFIG_TI_K3_AM65_CPSW_NUSS=y and CONFIG_TI_ICSSG_PRUETH=m,
k3-cppi-desc-pool.o is linked to a module and also to vmlinux even though
the expected CFLAGS are different between builtins and modules.

The build system is complaining about the following:

k3-cppi-desc-pool.o is added to multiple modules: icssg-prueth
ti-am65-cpsw-nuss

Introduce the new module, k3-cppi-desc-pool, to provide the common
functions to ti-am65-cpsw-nuss and icssg-prueth.

Fixes: 128d5874c082 ("net: ti: icssg-prueth: Add ICSSG ethernet driver")
Signed-off-by: MD Danish Anwar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Paolo Abeni <[email protected]>

show more ...

net: cpmac: remove driver to prepare for platform removal

AR7 is going to be removed from the Kernel, so remove its networking
support in form of the cpmac driver. This allows us to remove the
platf

net: cpmac: remove driver to prepare for platform removal

AR7 is going to be removed from the Kernel, so remove its networking
support in form of the cpmac driver. This allows us to remove the
platform because this driver includes a platform specific header.

Signed-off-by: Wolfram Sang <[email protected]>
Acked-by: Florian Fainelli <[email protected]>
Link: https://lore.kernel.org/all/[email protected]/
Signed-off-by: Jakub Kicinski <[email protected]>

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net: ti: icss-iep: Add IEP driver

Add a driver for Industrial Ethernet Peripheral (IEP) block of PRUSS to
support timestamping of ethernet packets and thus support PTP and PPS
for PRU ethernet ports

net: ti: icss-iep: Add IEP driver

Add a driver for Industrial Ethernet Peripheral (IEP) block of PRUSS to
support timestamping of ethernet packets and thus support PTP and PPS
for PRU ethernet ports.

Signed-off-by: Roger Quadros <[email protected]>
Signed-off-by: Lokesh Vutla <[email protected]>
Signed-off-by: Murali Karicheri <[email protected]>
Signed-off-by: Vignesh Raghavendra <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: MD Danish Anwar <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

show more ...

net: ti: icssg-prueth: Add ethtool ops for ICSSG Ethernet driver

Add icssg_ethtool.c file. This file will be used for dumping statistics
via ethtool for ICSSG ethernet driver.

Reviewed-by: Andrew L

net: ti: icssg-prueth: Add ethtool ops for ICSSG Ethernet driver

Add icssg_ethtool.c file. This file will be used for dumping statistics
via ethtool for ICSSG ethernet driver.

Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: MD Danish Anwar <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: ti: icssg-prueth: Add ICSSG Stats

Add icssg_stats.c to help dump, icssg related driver statistics.

ICSSG has hardware registers for providing statistics like total rx bytes,
total tx bytes, et

net: ti: icssg-prueth: Add ICSSG Stats

Add icssg_stats.c to help dump, icssg related driver statistics.

ICSSG has hardware registers for providing statistics like total rx bytes,
total tx bytes, etc. These registers are of 32 bits and hence in case of 1G
link, they overflows in around 32 seconds. The behaviour of these registers
is such that they don't roll back to 0 after overflow but rather stay at
UINT_MAX.

These registers support a feature where the value written to them is
subtracted from the register. This feature can be utilized to fix the
overflowing of stats.

This solution uses a Workqueues based solution where a function gets
called before the registers overflow (every 25 seconds in 1G link, 25000
seconds in 100M link), this function saves the register
values in local variables and writes the last read value to the
register. So any update during the read will be taken care of.

Signed-off-by: MD Danish Anwar <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

show more ...

net: ti: icssg-prueth: Add ICSSG ethernet driver

This is the Ethernet driver for TI AM654 Silicon rev. 2
with the ICSSG PRU Sub-system running dual-EMAC firmware.

The Programmable Real-time Unit an

net: ti: icssg-prueth: Add ICSSG ethernet driver

This is the Ethernet driver for TI AM654 Silicon rev. 2
with the ICSSG PRU Sub-system running dual-EMAC firmware.

The Programmable Real-time Unit and Industrial Communication Subsystem
Gigabit (PRU_ICSSG) is a low-latency microcontroller subsystem in the TI
SoCs. This subsystem is provided for the use cases like implementation of
custom peripheral interfaces, offloading of tasks from the other
processor cores of the SoC, etc.

Every ICSSG core has two Programmable Real-Time Unit(PRUs),
two auxiliary Real-Time Transfer Unit (RT_PRUs), and
two Transmit Real-Time Transfer Units (TX_PRUs). Each one of these runs
its own firmware. Every ICSSG core has two MII ports connect to these
PRUs and also a MDIO port.

The cores can run different firmwares to support different protocols and
features like switch-dev, timestamping, etc.

It uses System DMA to transfer and receive packets and
shared memory register emulation between the firmware and
driver for control and configuration.

This patch adds support for basic EMAC functionality with 1Gbps
and 100Mbps link speed. 10M and half duplex mode are not supported
currently as they require IEP, the support for which will be added later.
Support for switch-dev, timestamp, etc. will be added later
by subsequent patch series.

Signed-off-by: Roger Quadros <[email protected]>
Signed-off-by: Vignesh Raghavendra <[email protected]>
Signed-off-by: Grygorii Strashko <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: MD Danish Anwar <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

show more ...

net: ti: am65-cpsw-nuss: Add switchdev support

J721e, J7200 and AM64 have multi port switches which can work in multi
mac mode and in switch mode. Add support for configuring this HW in
switch mode

net: ti: am65-cpsw-nuss: Add switchdev support

J721e, J7200 and AM64 have multi port switches which can work in multi
mac mode and in switch mode. Add support for configuring this HW in
switch mode using devlink and switchdev notifiers.

Support is similar to existing CPSW switchdev implementation of TI's 32 bit
platform like AM33/AM43/AM57.

To enable switch mode:
devlink dev param set platform/8000000.ethernet name switch_mode value true cmode runtime

All configuration is implemented via switchdev API and notifiers.
Supported:
- SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS
- SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS
- SWITCHDEV_ATTR_ID_PORT_STP_STATE
- SWITCHDEV_OBJ_ID_PORT_VLAN
- SWITCHDEV_OBJ_ID_PORT_MDB
- SWITCHDEV_OBJ_ID_HOST_MDB

Hence AM65 CPSW switchdev driver supports:
- FDB offloading
- MDB offloading
- VLAN filtering and offloading
- STP

Signed-off-by: Vignesh Raghavendra <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

show more ...

ethernet: ti: am65-cpsw-qos: add TAPRIO offload support

AM65 CPSW h/w supports Enhanced Scheduled Traffic (EST – defined
in P802.1Qbv/D2.2 that later got included in IEEE 802.1Q-2018)
configuration.

ethernet: ti: am65-cpsw-qos: add TAPRIO offload support

AM65 CPSW h/w supports Enhanced Scheduled Traffic (EST – defined
in P802.1Qbv/D2.2 that later got included in IEEE 802.1Q-2018)
configuration. EST allows express queue traffic to be scheduled
(placed) on the wire at specific repeatable time intervals. In
Linux kernel, EST configuration is done through tc command and
the taprio scheduler in the net core implements a software only
scheduler (SCH_TAPRIO). If the NIC is capable of EST configuration,
user indicate "flag 2" in the command which is then parsed by
taprio scheduler in net core and indicate that the command is to
be offloaded to h/w. taprio then offloads the command to the
driver by calling ndo_setup_tc() ndo ops. This patch implements
ndo_setup_tc() to offload EST configuration to CPSW h/w.

Currently driver supports only SetGateStates operation. EST
operates on a repeating time interval generated by the CPTS EST
function generator. Each Ethernet port has a global EST fetch
RAM that can be configured as 2 buffers, each of 64 locations
or one large buffer of 128 locations. In 2 buffer configuration,
a ping pong mechanism is used to hold the active schedule (oper)
in one buffer and new (admin) command in the other. Each 22-bit
fetch command consists of a 14-bit fetch count (14 MSB’s) and an
8-bit priority fetch allow (8 LSB’s) that will be applied for the
fetch count time in wireside clocks. Driver process each of the
sched-entry in the offload command and update the fetch RAM.
Driver configures duration in sched-entry into the fetch count
and Gate mask into the priority fetch bits of the RAM. Then
configures the CPTS EST function generator to activate the
schedule. Currently driver supports only 2 buffer configuration
which means driver supports a max cycle time of ~8 msec.

CPSW supports a configurable number of priority queues (up to 8)
and needs to be switched to this mode from the default round
robin mode before EST can be offloaded. User configures
these through ethtool commands (-L for changing number of
queues and --set-priv-flags to disable round robin mode).
Driver doesn't enable EST if pf_p0_rx_ptype_rrobin privat flag
is set. The flag is common for all ports, and so can't be just
overridden by taprio configuration w/o user involvement.
Command fails if pf_p0_rx_ptype_rrobin is already set in the
driver.

Scheds (commands) configuration depends on interface speed so
driver translates the duration to the fetch count based on
link speed. Each schedule can be constructed with several
command entries in fetch RAM depending on interval. For example
if each sched has timer interval < ~130us on 1000 Mb link then
each sched consumes one command and have 1:1 mapping. When
Ethernet link goes down, driver purge the configuration if link
is down for more than 1 second.

The patch allows to update the timer and scheds memory only if it's
really needed, and skip cases required the user to stop timer by
configuring only shceds memory.

Signed-off-by: Ivan Khoronzhuk <[email protected]>
Signed-off-by: Murali Karicheri <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

show more ...

net: ethernet: ti: Remove TI_CPTS_MOD workaround

My recent commit b6d49cab44b5 ("net: Make PTP-specific drivers depend on
PTP_1588_CLOCK") exposes a missing dependency in defconfigs that select
TI_C

net: ethernet: ti: Remove TI_CPTS_MOD workaround

My recent commit b6d49cab44b5 ("net: Make PTP-specific drivers depend on
PTP_1588_CLOCK") exposes a missing dependency in defconfigs that select
TI_CPTS without selecting PTP_1588_CLOCK, leading to linker errors of the
form:

drivers/net/ethernet/ti/cpsw.o: in function `cpsw_ndo_stop':
cpsw.c:(.text+0x680): undefined reference to `cpts_unregister'
...

That's because TI_CPTS_MOD (which is the symbol gating the _compilation_ of
cpts.c) now depends on PTP_1588_CLOCK, and so is not enabled in these
configurations, but TI_CPTS (which is the symbol gating _calls_ to the cpts
functions) _is_ enabled. So we end up compiling calls to functions that
don't exist, resulting in the linker errors.

This patch fixes build errors and restores previous behavior by:
- ensure PTP_1588_CLOCK=y in TI specific configs and CPTS will be built
- remove TI_CPTS_MOD and, instead, add dependencies from CPTS in
TI_CPSW/TI_KEYSTONE_NETCP/TI_CPSW_SWITCHDEV as below:

config TI_CPSW_SWITCHDEV
...
depends on TI_CPTS || !TI_CPTS

which will ensure proper dependencies PTP_1588_CLOCK -> TI_CPTS ->
TI_CPSW/TI_KEYSTONE_NETCP/TI_CPSW_SWITCHDEV and build type selection.

Note. For NFS boot + CPTS all of above configs have to be built-in.

Cc: Arnd Bergmann <[email protected]>
Cc: Dan Murphy <[email protected]>
Cc: Tony Lindgren <[email protected]>
Fixes: b6d49cab44b5 ("net: Make PTP-specific drivers depend on PTP_1588_CLOCK")
Reported-by: kbuild test robot <[email protected]>
Signed-off-by: Clay McClure <[email protected]>
[[email protected]: rewording, add deps cpsw/netcp from cpts, drop IS_REACHABLE]
Signed-off-by: Grygorii Strashko <[email protected]>
Reviewed-by: Arnd Bergmann <[email protected]>
Tested-by: Tony Lindgren <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

show more ...

net: ethernet: ti: introduce am654 common platform time sync driver

The CPTS module is used to facilitate host control of time sync operations.
Main features of CPTS module are:
- selection of multi

net: ethernet: ti: introduce am654 common platform time sync driver

The CPTS module is used to facilitate host control of time sync operations.
Main features of CPTS module are:
- selection of multiple external clock sources
- control of time sync events via interrupt or polling
- 64-bit timestamp mode in ns with HW PPM and nudge adjustment.
- hardware timestamp ext. inputs (HWx_TS_PUSH)
- timestamp Generator function outputs (TS_GENFx)
Depending on integration it enables compliance with the IEEE 1588-2008
standard for a precision clock synchronization protocol, Ethernet Enhanced
Scheduled Traffic Operations (CPTS_ESTFn) and PCIe Subsystem Precision Time
Measurement (PTM).

Introduced driver provides Linux PTP hardware clock for each CPTS device
and network packets timestamping where applicable. CPTS PTP hardware clock
supports following operations:
- Set time
- Get time
- Shift the clock by a given offset atomically
- Adjust clock frequency
- Time stamp external events
- Periodic output signals

Signed-off-by: Grygorii Strashko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

show more ...

net: ethernet: ti: introduce am65x/j721e gigabit eth subsystem driver

The TI AM65x/J721E SoCs Gigabit Ethernet Switch subsystem (CPSW2G NUSS) has
two ports - One Ethernet port (port 1) with selectab

net: ethernet: ti: introduce am65x/j721e gigabit eth subsystem driver

The TI AM65x/J721E SoCs Gigabit Ethernet Switch subsystem (CPSW2G NUSS) has
two ports - One Ethernet port (port 1) with selectable RGMII and RMII
interfaces and an internal Communications Port Programming Interface (CPPI)
port (Host port 0) and with ALE in between. It also contains
- Management Data Input/Output (MDIO) interface for physical layer device
(PHY) management;
- Updated Address Lookup Engine (ALE) module;
- (TBD) New version of Common platform time sync (CPTS) module.

On the TI am65x/J721E SoCs CPSW NUSS Ethernet subsystem into device MCU
domain named MCU_CPSW0.

Host Port 0 CPPI Packet Streaming Interface interface supports 8 TX
channels and one RX channels operating by TI am654 NAVSS Unified DMA
Peripheral Root Complex (UDMA-P) controller.

Introduced driver provides standard Linux net_device to user space and supports:
- ifconfig up/down
- MAC address configuration
- ethtool operation:
--driver
--change
--register-dump
--negotiate phy
--statistics
--set-eee phy
--show-ring
--show-channels
--set-channels
- net_device ioctl mii-control
- promisc mode

- rx checksum offload for non-fragmented IPv4/IPv6 TCP/UDP packets.
The CPSW NUSS can verify IPv4/IPv6 TCP/UDP packets checksum and fills
csum information for each packet in psdata[2] word:
- BIT(16) CHECKSUM_ERROR - indicates csum error
- BIT(17) FRAGMENT - indicates fragmented packet
- BIT(18) TCP_UDP_N - Indicates TCP packet was detected
- BIT(19) IPV6_VALID, BIT(20) IPV4_VALID - indicates IPv6/IPv4 packet
- BIT(15, 0) CHECKSUM_ADD - This is the value that was summed
during the checksum computation. This value is FFFFh for non fragmented
IPV4/6 UDP/TCP packets with no checksum error.

RX csum offload can be disabled:
ethtool -K <dev> rx-checksum on|off

- tx checksum offload support for IPv4/IPv6 TCP/UDP packets (J721E only).
TX csum HW offload can be enabled/disabled:
ethtool -K <dev> tx-checksum-ip-generic on|off

- multiq and switch between round robin/prio modes for cppi tx queues by
using Netdev private flag "p0-rx-ptype-rrobin" to switch between
Round Robin and Fixed priority modes:
# ethtool --show-priv-flags eth0
Private flags for eth0:
p0-rx-ptype-rrobin: on
# ethtool --set-priv-flags eth0 p0-rx-ptype-rrobin off

Number of TX DMA channels can be changed using "ethtool -L eth0 tx <N>".

- GRO support: the napi_gro_receive() and napi_complete_done() are used.

Signed-off-by: Grygorii Strashko <[email protected]>
Tested-by: Murali Karicheri <[email protected]>
Tested-by: Peter Ujfalusi <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

show more ...

net: ethernet: ti: build cpsw-common for switchdev

Without the common part of the driver, the new file fails to link:

drivers/net/ethernet/ti/cpsw_new.o: In function `cpsw_probe':
cpsw_new.c:(.text

net: ethernet: ti: build cpsw-common for switchdev

Without the common part of the driver, the new file fails to link:

drivers/net/ethernet/ti/cpsw_new.o: In function `cpsw_probe':
cpsw_new.c:(.text+0x312c): undefined reference to `ti_cm_get_macid'

Use the same Makefile hack as before, and build cpsw-common.o for
any driver that needs it.

Fixes: ed3525eda4c4 ("net: ethernet: ti: introduce cpsw switchdev based driver part 1 - dual-emac")
Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Grygorii Strashko <[email protected]>
Signed-off-by: Jakub Kicinski <[email protected]>

show more ...

net: ethernet: ti: introduce cpsw switchdev based driver part 2 - switch

CPSW switchdev based driver which is operating in dual-emac mode by
default, thus working as 2 individual network interfaces.

net: ethernet: ti: introduce cpsw switchdev based driver part 2 - switch

CPSW switchdev based driver which is operating in dual-emac mode by
default, thus working as 2 individual network interfaces. The Switch mode
can be enabled by configuring devlink driver parameter "switch_mode" to 1:

devlink dev param set platform/48484000.switch \
name switch_mode value 1 cmode runtime

This can be done regardless of the state of Port's netdevs - UP/DOWN, but
Port's netdev devices have to be UP before joining the bridge to avoid
overwriting of bridge configuration as CPSW switch driver completely
reloads its configuration when first Port changes its state to UP.
When the both interfaces joined the bridge - CPSW switch driver will start
marking packets with offload_fwd_mark flag unless "ale_bypass=0".

All configuration is implemented via switchdev API and notifiers.
Supported:
- SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS
- SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: BR_MCAST_FLOOD
- SWITCHDEV_ATTR_ID_PORT_STP_STATE
- SWITCHDEV_OBJ_ID_PORT_VLAN
- SWITCHDEV_OBJ_ID_PORT_MDB
- SWITCHDEV_OBJ_ID_HOST_MDB

Hence CPSW switchdev driver supports:
- FDB offloading
- MDB offloading
- VLAN filtering and offloading
- STP

Signed-off-by: Ilias Apalodimas <[email protected]>
Signed-off-by: Grygorii Strashko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: ethernet: ti: introduce cpsw switchdev based driver part 1 - dual-emac

Part 1:
Introduce basic CPSW dual_mac driver (cpsw_new.c) which is operating in
dual-emac mode by default, thus working a

net: ethernet: ti: introduce cpsw switchdev based driver part 1 - dual-emac

Part 1:
Introduce basic CPSW dual_mac driver (cpsw_new.c) which is operating in
dual-emac mode by default, thus working as 2 individual network interfaces.
Main differences from legacy CPSW driver are:

- optimized promiscuous mode: The P0_UNI_FLOOD (both ports) is enabled in
addition to ALLMULTI (current port) instead of ALE_BYPASS. So, Ports in
promiscuous mode will keep possibility of mcast and vlan filtering, which
is provides significant benefits when ports are joined to the same bridge,
but without enabling "switch" mode, or to different bridges.
- learning disabled on ports as it make not too much sense for
segregated ports - no forwarding in HW.
- enabled basic support for devlink.

devlink dev show
platform/48484000.switch

devlink dev param show
platform/48484000.switch:
name ale_bypass type driver-specific
values:
cmode runtime value false

- "ale_bypass" devlink driver parameter allows to enable
ALE_CONTROL(4).BYPASS mode for debug purposes.
- updated DT bindings.

Signed-off-by: Ilias Apalodimas <[email protected]>
Signed-off-by: Murali Karicheri <[email protected]>
Signed-off-by: Grygorii Strashko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: ethernet: ti: netcp_ethss: fix build

Fix reported build fail:
ERROR: "cpsw_ale_flush_multicast" [drivers/net/ethernet/ti/keystone_netcp_ethss.ko] undefined!
ERROR: "cpsw_ale_create" [drivers/ne

net: ethernet: ti: netcp_ethss: fix build

Fix reported build fail:
ERROR: "cpsw_ale_flush_multicast" [drivers/net/ethernet/ti/keystone_netcp_ethss.ko] undefined!
ERROR: "cpsw_ale_create" [drivers/net/ethernet/ti/keystone_netcp_ethss.ko] undefined!
ERROR: "cpsw_ale_add_vlan" [drivers/net/ethernet/ti/keystone_netcp_ethss.ko] undefined!

Fixes: 16f54164828b ("net: ethernet: ti: cpsw: drop CONFIG_TI_CPSW_ALE config option")
Reported-by: kbuild test robot <[email protected]>
Signed-off-by: Grygorii Strashko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: ethernet: ti: cpsw: move ethtool func in separate file

As a preparatory patch to add support for a switchdev based cpsw driver,
move common ethtool functions to separate cpsw-ethtool.c file so

net: ethernet: ti: cpsw: move ethtool func in separate file

As a preparatory patch to add support for a switchdev based cpsw driver,
move common ethtool functions to separate cpsw-ethtool.c file so that they
can be used across both drivers. It will simplify CPSW driver code
maintenance also.

Signed-off-by: Grygorii Strashko <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: ethernet: ti: cpsw: switch to use mac sl api

Switch CPSW driver to use the new MAC SL API.

Signed-off-by: Grygorii Strashko <[email protected]>
Signed-off-by: David S. Miller <davem@dav

net: ethernet: ti: cpsw: switch to use mac sl api

Switch CPSW driver to use the new MAC SL API.

Signed-off-by: Grygorii Strashko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: ethernet: ti: cpsw: move common hw init code in separate func

move common hw init code in separate function as preparation for adding new
switchdev driver.

Signed-off-by: Grygorii Strashko <gr

net: ethernet: ti: cpsw: move common hw init code in separate func

move common hw init code in separate function as preparation for adding new
switchdev driver.

Signed-off-by: Grygorii Strashko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: ethernet: ti: cpsw: drop CONFIG_TI_CPSW_ALE config option

All TI drivers CPSW/NETCP can't work without ALE, hence simplify
build of those drivers by always linking cpsw_ale and drop
CONFIG_TI_C

net: ethernet: ti: cpsw: drop CONFIG_TI_CPSW_ALE config option

All TI drivers CPSW/NETCP can't work without ALE, hence simplify
build of those drivers by always linking cpsw_ale and drop
CONFIG_TI_CPSW_ALE config option.

Signed-off-by: Grygorii Strashko <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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