Commit Graph

39 Commits

Author SHA1 Message Date
René van Dorst
38f790a805 net: dsa: mt7530: Add support for port 5
Adding support for port 5.

Port 5 can muxed/interface to:
- internal 5th GMAC of the switch; can be used as 2nd CPU port or as
  extra port with an external phy for a 6th ethernet port.
- internal PHY of port 0 or 4; Used in most applications so that port 0
  or 4 is the WAN port and interfaces with the 2nd GMAC of the SOC.

Signed-off-by: René van Dorst <opensource@vdorst.com>
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05 00:28:23 +02:00
René van Dorst
ca366d6c88 net: dsa: mt7530: Convert to PHYLINK API
Convert mt7530 to PHYLINK API

Signed-off-by: René van Dorst <opensource@vdorst.com>
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05 00:28:23 +02:00
Vivien Didelot
74be4babe7 net: dsa: do not enable or disable non user ports
The .port_enable and .port_disable operations are currently only
called for user ports, hence assuming they have a slave device. In
preparation for using these operations for other port types as well,
simply guard all implementations against non user ports and return
directly in such case.

Note that bcm_sf2_sw_suspend() currently calls bcm_sf2_port_disable()
(and thus b53_disable_port()) against the user and CPU ports, so do
not guards those functions. They will be called for unused ports in
the future, but that was expected by those drivers anyway.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-20 12:33:49 -07:00
René van Dorst
7ef6f6f8d2 net: dsa: mt7530: Add MT7621 TRGMII mode support
This patch add support TRGMII mode for MT7621 internal MT7530 switch.
MT7621 TRGMII has only one fix speed mode of 1200MBit.

Also adding support for mt7530 25MHz and 40MHz crystal clocksource.
Values are based on Banana Pi R2 bsp [1].

Don't change MT7623 registers on a MT7621 device.

[1] https://github.com/BPI-SINOVOIP/BPI-R2-bsp/blob/master/linux-mt/drivers/net/ethernet/mediatek/gsw_mt7623.c#L769

Signed-off-by: René van Dorst <opensource@vdorst.com>
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-22 16:58:24 -07:00
Thomas Gleixner
1802d0beec treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 655 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:41 -07:00
Vladimir Oltean
2a1305515b net: dsa: mt7530: Use the DSA vlan_filtering helper function
This was recently introduced, so keeping state inside the driver is no
longer necessary.

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-30 23:05:29 -04:00
Vladimir Oltean
e3ee07d14f net: dsa: mt7530: Let DSA handle the unsetting of vlan_filtering
The driver, recognizing that the .port_vlan_filtering callback was never
coming after the port left its parent bridge, decided to take that duty
in its own hands. DSA now takes care of this condition, so fix that.

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-30 23:05:28 -04:00
YueHaibing
f819cd926c drivers: net: Remove unnecessary semicolon
drivers/net/dsa/mt7530.c:649:3-4: Unneeded semicolon
drivers/net/ethernet/cisco/enic/enic_clsf.c:35:2-3: Unneeded semicolon
drivers/net/ethernet/faraday/ftgmac100.c:1640:2-3: Unneeded semicolon
drivers/net/ethernet/mediatek/mtk_eth_soc.c:229:2-3: Unneeded semicolon
drivers/net/usb/sr9700.c:437:2-3: Unneeded semicolon

Remove unneeded semicolon.

Generated by: scripts/coccinelle/misc/semicolon.cocci

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Sean Wang <sean.wang@mediatek.com> for mt7530 and mtk_eth_soc
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:13:49 -08:00
Andrew Lunn
75104db0cb dsa: Remove phydev parameter from disable_port call
No current DSA driver makes use of the phydev parameter passed to the
disable_port call. Remove it.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-24 22:30:34 -08:00
Greg Ungerer
ddda1ac116 net: dsa: mt7530: support the 7530 switch on the Mediatek MT7621 SoC
The MediaTek MT7621 SoC device contains a 7530 switch, and the existing
linux kernel 7530 DSA switch driver can be used with it.

The bulk of the changes required stem from the 7621 having different
regulator and pad setup. The existing setup of these in the 7530
driver appears to be very specific to its implemtation in the Mediatek
7623 SoC. (Not entirely surprising given the 7623 is a quad core ARM
based SoC, and the 7621 is a dual core, dual thread MIPS based SoC).

Create a new devicetree type, "mediatek,mt7621", to support the 7530
switch in the 7621 SoC. There appears to be no usable ID register to
distinguish it from a 7530 in other hardware at runtime. This is used
to carry out the appropriate configuration and setup.

Signed-off-by: Greg Ungerer <gerg@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-30 14:26:07 -08:00
Linus Walleij
cff1e01f16 net: dsa: mt7530: Drop unused GPIO include
This driver uses GPIO descriptors only, <linux/of_gpio.h>
is not used so drop the include.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-04 13:07:23 -08:00
Andrew Lunn
3c1bcc8614 net: ethernet: Convert phydev advertize and supported from u32 to link mode
There are a few MAC/PHYs combinations which now support > 1Gbps. These
may need to make use of link modes with bits > 31. Thus their
supported PHY features or advertised features cannot be implemented
using the current bitmap in a u32. Convert to using a linkmode bitmap,
which can support all the currently devices link modes, and is future
proof as more modes are added.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-11 10:10:01 -08:00
Andrew Lunn
5f991f7bdd net: phy: Add helper for advertise to lcl value
Add a helper to convert the local advertising to an LCL capabilities,
which is then used to resolve pause flow control settings.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-01 22:55:36 -07:00
Florian Fainelli
89f0904834 net: dsa: Pass stringset to ethtool operations
Up until now we largely assumed that we were interested in ETH_SS_STATS
type of strings for all ethtool operations, this is about to change with
the introduction of additional string sets, e.g: ETH_SS_PHY_STATS.
Update all functions to take an appropriate stringset argument and act
on it when it is different than ETH_SS_STATS for now.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27 11:53:03 -04:00
Florian Fainelli
18bd5949e5 net: dsa: mt7530: Use NULL instead of plain integer
We would be passing 0 instead of NULL as the rsp argument to
mt7530_fdb_cmd(), fix that.

Fixes: b8f126a8d5 ("net-next: dsa: add dsa support for Mediatek MT7530 switch")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-04 11:15:49 -04:00
David S. Miller
c0b458a946 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor conflicts in drivers/net/ethernet/mellanox/mlx5/core/en_rep.c,
we had some overlapping changes:

1) In 'net' MLX5E_PARAMS_LOG_{SQ,RQ}_SIZE -->
   MLX5E_REP_PARAMS_LOG_{SQ,RQ}_SIZE

2) In 'net-next' params->log_rq_size is renamed to be
   params->log_rq_mtu_frames.

3) In 'net-next' params->hard_mtu is added.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-01 19:49:34 -04:00
Sean Wang
3c82b372a9 net: dsa: mt7530: fix module autoloading for OF platform drivers
It's required to create a modules.alias via MODULE_DEVICE_TABLE helper
for the OF platform driver. Otherwise, module autoloading cannot work.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-26 13:09:42 -04:00
Sean Wang
1c82c9e1f2 net: dsa: mt7530: remove redundant MODULE_ALIAS entries
MODULE_ALIAS exports information to allow the module to be auto-loaded at
boot for the drivers registered using legacy platform registration.

However, currently the driver is always used by DT-only platform,
MODULE_ALIAS is redundant and should be removed properly.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-26 13:09:41 -04:00
Andrew Lunn
88c060549a dsa: Pass the port to get_sset_count()
By passing the port, we allow different ports to have different
statistics. This is useful since some ports have SERDES interfaces
with their own statistic counters.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-04 13:34:18 -05:00
Sean Wang
83163f7dca net: dsa: mediatek: add VLAN support for MT7530
MT7530 can treat each port as either VLAN-unaware port or VLAN-aware port
through the implementation of port matrix mode or port security mode on
the ingress port, respectively. On one hand, Each port has been acting as
the VLAN-unaware one whenever the device is created in the initial or
certain port joins or leaves into/from the bridge at the runtime. On the
other hand, the patch just filling the required callbacks for VLAN
operations is achieved via extending the port to be into port security
mode when the port is configured as VLAN-aware port. Which mode can make
the port be able to recognize VID from incoming packets and look up VLAN
table to validate and judge which port it should be going to. And the
range for VID from 1 to 4094 is valid for the hardware.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-15 10:31:54 -05:00
Florian Fainelli
5ed4e3eb02 net: dsa: Pass a port to get_tag_protocol()
A number of drivers want to check whether the configured CPU port is a
possible configuration for enabling tagging, pass down the CPU port
number so they verify that.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-13 10:34:54 +09:00
Vivien Didelot
02bc6e546e net: dsa: introduce dsa_user_ports helper
Introduce a dsa_user_ports() helper to return the ds->enabled_port_mask
mask which is more explicit. This will also minimize diffs when touching
this internal mask.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-28 00:00:09 +09:00
Vivien Didelot
4a5b85ffe2 net: dsa: use dsa_is_user_port everywhere
Most of the DSA code still check ds->enabled_port_mask directly to
inspect a given port type instead of using the provided dsa_is_user_port
helper. Change this.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-28 00:00:09 +09:00
Vivien Didelot
c8652c83bc net: dsa: add dsa_to_port helper
The dsa_port structure is part of DSA core data and must only be updated
by the later. It is OK and sometimes necessary for the DSA drivers to
access this data, but this has to be read only.

For that purpose, add a dsa_to_port() helper which returns a const
pointer to a dsa_port structure which must be used by DSA drivers from
now on instead of digging into ds->ports[] themselves.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-18 12:24:33 +01:00
Vivien Didelot
f8b8b1cd5a net: dsa: split dsa_port's netdev member
The dsa_port structure has a "netdev" member, which can be used for
either the master device, or the slave device, depending on its type.

It is true that today, CPU port are not exposed to userspace, thus the
port's netdev member can be used to point to its master interface.

But it is still slightly confusing, so split it into more explicit
"master" and "slave" members inside an anonymous union.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-18 12:24:33 +01:00
Colin Ian King
360cc342c9 net: dsa: mt7530: make functions mt7530_phy_write static
The function mt7530_phy_write is local to the source and does not need to
be in global scope, so make it static.

Cleans up sparse warnings:
symbol 'mt7530_phy_write' was not declared. Should it be static?

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-03 10:20:12 -07:00
Vivien Didelot
0abfd494de net: dsa: use dedicated CPU port
Each port in DSA has its own dedicated CPU port currently available in
its parent switch's ds->ports[port].cpu_dp. Use it instead of getting
the unique tree CPU port, which will be deprecated soon.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-21 15:15:58 -07:00
Bhumika Goyal
d78d6776bc net: dsa: make dsa_switch_ops const
Make these structures const as they are only stored in the ops field of
a dsa_switch structure, which is const.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-09 22:42:49 -07:00
David S. Miller
3118e6e19d Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The UDP offload conflict is dealt with by simply taking what is
in net-next where we have removed all of the UFO handling code
entirely.

The TCP conflict was a case of local variables in a function
being removed from both net and net-next.

In netvsc we had an assignment right next to where a missing
set of u64 stats sync object inits were added.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-09 16:28:45 -07:00
John Crispin
8e6f1521ec net: dsa: mediatek: add adjust link support for user ports
Manually adjust the port settings of user ports once PHY polling has
completed. This patch extends the adjust_link callback to configure the
per port PMCR register, applying the proper values polled from the PHY.
Without this patch flow control was not always getting setup properly.

Signed-off-by: Shashidhar Lakkavalli <shashidhar.lakkavalli@openmesh.com>
Signed-off-by: Muciri Gatimu <muciri@openmesh.com>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-08 18:01:25 -07:00
Arkadi Sharshevsky
2bedde1abb net: dsa: Move FDB dump implementation inside DSA
>From all switchdev devices only DSA requires special FDB dump. This is due
to lack of ability for syncing the hardware learned FDBs with the bridge.
Due to this it is removed from switchdev and moved inside DSA.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07 14:48:48 -07:00
Arkadi Sharshevsky
1b6dd556c3 net: dsa: Remove prepare phase for FDB
The prepare phase for FDB add is unneeded because most of DSA devices
can have failures during bus transactions (SPI, I2C, etc.), thus, the
prepare phase cannot guarantee success of the commit stage.

The support for learning FDB through notification chain, which will be
introduced in the following patches, will provide the ability to notify
back the bridge about successful offload.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07 14:48:47 -07:00
Arkadi Sharshevsky
6c2c1dcb18 net: dsa: Change DSA slave FDB API to be switchdev independent
In order to support FDB add/del to be on a notifier chain the slave
API need to be changed to be switchdev independent.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07 14:48:47 -07:00
Florian Fainelli
6d3c8c0dd8 net: dsa: Remove master_netdev and use dst->cpu_dp->netdev
In preparation for supporting multiple CPU ports, remove
dst->master_netdev and ds->master_netdev and replace them with only one
instance of the common object we have for a port: struct
dsa_port::netdev. ds->master_netdev is currently write only and would be
helpful in the case where we have two switches, both with CPU ports, and
also connected within each other, which the multi-CPU port patch series
would address.

While at it, introduce a helper function used in net/dsa/slave.c to
immediately get a reference on the master network device called
dsa_master_netdev().

Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 16:35:02 -04:00
Vivien Didelot
23c9ee4934 net: dsa: remove dev arg of dsa_register_switch
The current dsa_register_switch function takes a useless struct device
pointer argument, which always equals ds->dev.

Drivers either call it with ds->dev, or with the same device pointer
passed to dsa_switch_alloc, which ends up being assigned to ds->dev.

This patch removes the second argument of the dsa_register_switch and
_dsa_register_switch functions.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31 12:35:43 -04:00
Vivien Didelot
438ff53739 net: dsa: use switchdev_obj_dump_cb_t everywhere
Now that the DSA public header includes switchdev.h, use the provided
switchdev_obj_dump_cb_t typedef for the object dump callback.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-18 10:40:12 -04:00
Vivien Didelot
f0c24ccf49 net: dsa: include switchdev.h only once
DSA drivers and core use switchdev. Include switchdev.h only once, in
the dsa.h public header, so that inclusion in DSA drivers or forward
declarations of switchdev structures in not necessary anymore.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-18 10:40:12 -04:00
Florian Fainelli
eb976a55c7 net: dsa: mt7530: Include gpio/consumer.h for GPIO functions
Fixes build errors seen with CONFIG_GPIOLIB disabled and warnings enabled:

drivers/net/dsa/mt7530.c: In function 'mt7530_setup':
drivers/net/dsa/mt7530.c:948:3: error: implicit declaration of function 'gpiod_set_value_cansleep' [-Werror=implicit-function-declaration]
   gpiod_set_value_cansleep(priv->reset, 0);
   ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/dsa/mt7530.c: In function 'mt7530_probe':
drivers/net/dsa/mt7530.c:1068:17: error: implicit declaration of function 'devm_gpiod_get_optional' [-Werror=implicit-function-declaration]
   priv->reset = devm_gpiod_get_optional(&mdiodev->dev, "reset",
                 ^~~~~~~~~~~~~~~~~~~~~~~
drivers/net/dsa/mt7530.c:1069:13: error: 'GPIOD_OUT_LOW' undeclared (first use in this function)
             GPIOD_OUT_LOW);
             ^~~~~~~~~~~~~
drivers/net/dsa/mt7530.c:1069:13:

Fixes: b8f126a8d5 ("net-next: dsa: add dsa support for Mediatek MT7530 switch")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-09 18:28:54 -07:00
Sean Wang
b8f126a8d5 net-next: dsa: add dsa support for Mediatek MT7530 switch
MT7530 is a 7-ports Gigabit Ethernet Switch that could be found on
Mediatek router platforms such as MT7623A or MT7623N platform which
includes 7-port Gigabit Ethernet MAC and 5-port Gigabit Ethernet PHY.
Among these ports, The port from 0 to 4 are the user ports connecting
with the remote devices while the port 5 and 6 are the CPU ports
connecting into Mediatek Ethernet GMAC.

For port 6, it can communicate with the CPU via Mediatek Ethernet GMAC
through either the TRGMII or RGMII which could be controlled by phy-mode
in the dt-bindings to specify which mode is preferred to use. And for
port 5, only RGMII can be specified. However, currently, only port 6 is
being supported in this DSA driver.

The driver is made with the reference to qca8k and other existing DSA
driver. The most of the essential callbacks of the DSA are already
support in the driver, including tag insert for user port distinguishing,
port control, bridge offloading, STP setup and ethtool operation to allow
DSA to model each user port into a standalone netdevice as the other DSA
driver had done.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Landen Chao <Landen.Chao@mediatek.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-07 13:52:11 -07:00