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Vivien Didelot c3a7d4ade5 net: dsa: mv88e6xxx: enable ATU Learn2All
The ATU Learn2All feature allows newly learnt addresses to be spanned on
ports marked as "Message Port", currently all DSA ports.

This commit enables this feature which is necessary and quite convenient
for multi-chip switch fabrics.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12 23:54:05 -07:00
Vivien Didelot ea698f4f70 net: dsa: mv88e6xxx: setup message ports
All interconnectable Marvell switch chips have an ATU Learn2All feature
which allows newly learnt addresses to be spanned on ports marked as
"Message Port".

This commit configures the DSA ports as Message Port. Note that this has
no effect until the Learn2All feature is enabled.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12 23:54:05 -07:00
Vivien Didelot a2ac29d2cc net: dsa: mv88e6xxx: add ATU setup helper
Move the configuration of the default ageing time in a new
mv88e6xxx_atu_setup function.

That function will be extended later to contain all ATU related
configuration bits.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12 23:54:05 -07:00
Vivien Didelot 720c6343ef net: dsa: mv88e6xxx: move ATU ageing time setter
Move the ATU ageing time setter code in a new global1_atu.c file, which
will be extended in future patches to contains all consequent Global (1)
ATU support code.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12 23:54:05 -07:00
Volodymyr Bendiuga 91eaa475e2 net:dsa:mv88e6xxx: use watchdog ops for 6097 chip
mv88e6097 chip requires watchdog_ops to be set.

Signed-off-by: Volodymyr Bendiuga <volodymyr.bendiuga@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-14 11:45:28 -05:00
Andrew Lunn 6130373663 net: dsa: mv88e6xxx: Add mv88e6390 watchdog interrupt support
Implement the ops needed to support the watchdog for the MV88E6390
family.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-13 09:30:22 -05:00
Andrew Lunn fcd25166d9 net: dsa: mv88e6xxx: Add watchdog interrupt handler
The switch contains a watchdog looking for issues with the internal
gubbins of the switch. Hook the interrupt the watchdog triggers and
log the value of the control register indicating why the watchdog
fired. The watchdog can only be cleared with a switch reset, which
will destroy the current configuration. Rather than doing this, just
disable the interrupt.

The mv88e6390 family has different watchdog registers. So use an ops
structure, so support for the mv88e6390 family can be added later.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-13 09:30:21 -05:00
Andrew Lunn a23b296198 net: dsa: mv88e6xxx: Refactor remaining port setup
Move the remaining port configuration code which varies per device
into port.c, using ops were necessary. This makes
mv88e6xxx_6185_family() and mv88e6xxx_6095_family() unused, so remove
them.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 10:48:06 -05:00
Andrew Lunn f39908d3b1 net: dsa: mv88e6xxx: Set the CMODE for mv88e6390 ports 9 & 10
Unlike most ports, ports 9 and 10 of the 6390X family have configurable
PHY modes. Set the mode as part of adjust_link().

Ordering is important, because the SERDES interfaces connected to
ports 9 and 10 can be split and assigned to other ports. The CMODE has
to be correctly set before the SERDES interface on another port can be
configured. Such configuration is likely to be performed in
port_enable() and port_disabled(), called on slave_open() and
slave_close().

The simple case is port 9 and 10 are used for 'CPU' or 'DSA'. In this
case, the CMODE is set via a phy-mode in dsa_cpu_dsa_setup(), which is
called early in the switch setup.

When ports 9 or 10 are used as user ports, and have a fixed-phy, when
the fixed fixed-phy is attached, dsa_slave_adjust_link() is called,
which results in the adjust_link function being called, setting the
cmode. The port_enable() will for other ports will be called much
later.

When ports 9 or 10 are used as user ports and have a real phy attached
which does not use all the available SERDES interface, e.g. a 1Gbps
SGMII, there is currently no mechanism in place to set the CMODE of
the port from software. It must be hoped the stripping resistors are
correct.

At the same time, add a function to get the cmode. This will be needed
when configuring the SERDES interfaces.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 10:34:43 -05:00
Andrew Lunn b91e055c57 net: dsa: mv88e6xxx: Fix ATU age timer for MV88E6390
The MV88E6390 family uses a different ATU age timer coefficient.
Fix the info structures.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-02 22:06:43 -05:00
Andrew Lunn da9f33018e net: dsa: mv88e6xxx: Workaround missing PHY ID on mv88e6390
The internal PHYs of the mv88e6390 do not have a model ID. Trap any
calls to the ID register, and if it is zero, return the ID for the
mv88e6390. The Marvell PHY driver can then bind to this ID.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-02 21:50:51 -05:00
Gregory CLEMENT 1558727a1c net: dsa: mv88e6xxx: Add support for ethernet switch 88E6141
The Marvell 88E6341 device is single-chip, 6-port Ethernet switch with
four integrated 10/100/1000Mbps Ethernet transceivers and one high speed
SerDes interfaces.

It belongs to the Topaz family and unlike the 88E6341 it does not have
a TCAM.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-30 16:50:57 -05:00
Gregory CLEMENT a75961d0eb net: dsa: mv88e6xxx: Add support for ethernet switch 88E6341
The Marvell 88E6341 device is single-chip, 6-port Ethernet switch with
four integrated 10/100/1000Mbps Ethernet transceivers and one high speed
SerDes interfaces. It is partially compatible with switches of family
88E6352 and switches of family 88E6390.

This commit adds an initial support for this switch by describing its
capabilities to the driver and introducing a new family.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-30 16:50:56 -05:00
Romain Perier 891daf49b0 net: dsa: mv88e6xxx: Don't forbid MDIO I/Os for PHY addr >= num_of_ports
Some Marvell ethernet switches have internal ethernet transceivers with
hardcoded phy addresses. These addresses can be greater than the number
of ports or its value might be different than the associated port number.
This is for example the case for MV88E6341 that has 6 ports and internal
Port 1 to Port4 PHYs mapped at SMI addresses from 0x11 to 0x14.

This commits fixes the issue by removing the condition in MDIO callbacks.

Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-30 16:50:56 -05:00
Vivien Didelot fae8a25e5b net: dsa: mv88e6xxx: use dsa_port's bridge pointer
Now that DSA exposes the bridge device pointer to which a port belongs,
use it when programming the port based VLANs and thus remove the cache.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-29 18:42:46 -05:00
Vivien Didelot f123f2fbed net: dsa: pass bridge device when a port leaves
Upon reception of the NETDEV_CHANGEUPPER, a leaving port is already
unbridged, so reflect this by assigning the port's bridge_dev pointer to
NULL before calling the port_bridge_leave DSA driver operation.

Now that the bridge_dev pointer is exposed to the drivers, reflecting
the current state of the DSA switch fabric is necessary for the drivers
to adjust their port based VLANs correctly.

Pass the bridge device pointer to the port_bridge_leave operation so
that drivers have all information to re-program their chips properly,
and do not need to cache it anymore.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-29 18:42:46 -05:00
Vivien Didelot a0c02161ec net: dsa: variable number of ports
Change the ports[DSA_MAX_PORTS] array of the dsa_switch structure for a
zero-length array, allocated at the same time as the dsa_switch
structure itself. A dsa_switch_alloc() helper is provided for that.

This commit brings no functional change yet since we pass DSA_MAX_PORTS
as the number of ports for the moment. Future patches can update the DSA
drivers separately to support dynamic number of ports.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-29 18:42:46 -05:00
Florian Fainelli 55ed0ce089 net: dsa: Pass device pointer to dsa_register_switch
In preparation for allowing dsa_register_switch() to be supplied with
device/platform data, pass down a struct device pointer instead of a
struct device_node.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-26 15:43:52 -05:00
Andrew Lunn a3c53be55c net: dsa: mv88e6xxx: Support multiple MDIO busses
The mv88e6390 has multiple MDIO busses. Generalize the parsing of the
device tree to support multiple mdio nodes. The external mdio bus has
a compatible strings to indicate it is external.

Keep a linked list of busses, placing the external mdio bus at the
tail of the list. When within the driver an mdio bus is needed,
e.g. for EEE or SERDES, use the head of the list which should be the
internal bus.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-24 15:33:51 -05:00
Andrew Lunn 0dd12d54c4 net: dsa: mv88e6xxx: Add mdio private structure
Have the MDIO bus driver code allocate a private structure and make
the chip a member of it. This will allow us to add further members in
the future.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-24 15:33:51 -05:00
Andrew Lunn ee26a2284b net: dsa: mv88e6xxx: Pass mii_bus to all PHY operations
In preparation for supporting multiple MDIO busses, pass the mii_bus
structure to all PHY operations. It will in future then be clear on
which MDIO bus the operation should be performed.

For reads/write from phylib, the mii_bus is readily available. However
some internal code also access the PHY, e.g. for EEE and SERDES. Make
this code use the one and only currently available MDIO bus.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-24 15:33:50 -05:00
Andrew Lunn efb3e74da2 net: dsa: mv88e6xxx: Abstract mv88e6165 PHY operations
The mv88e6165 family has the internal PHYs mapped directly onto the
SMI register space as the switch. So the registers can be read
directly. Put a wrapper around this, in preparation for changing the
signature in order to support the external MDIO bus of the 6390.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-24 15:33:50 -05:00
Andrew Lunn cf1a56a4cf net: dsa: Remove hwmon support
Only the Marvell mv88e6xxx DSA driver made use of the HWMON support in
DSA. The temperature sensor registers are actually in the embedded
PHYs, and the PHY driver now supports it. So remove all HWMON support
from DSA and drivers.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-20 14:42:51 -05:00
Vivien Didelot 98fc3c6fa5 net: dsa: mv88e6xxx: add EEPROM support to 6390
The Marvell 6352 chip has a 8-bit address/16-bit data EEPROM access.
The Marvell 6390 chip has a 16-bit address/8-bit data EEPROM access.

This patch implements the 8-bit data EEPROM access in the mv88e6xxx
driver and adds its support to chips of the 6390 family.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-13 20:17:01 -05:00
Florian Fainelli a82f67afe8 net: dsa: Make dsa_switch_ops const
Now that we have properly encapsulated and made drivers utilize exported
functions, we can switch dsa_switch_ops to be a annotated with const.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-09 15:44:50 -05:00
Florian Fainelli ab3d408d3f net: dsa: Encapsulate legacy switch drivers into dsa_switch_driver
In preparation for making struct dsa_switch_ops const, encapsulate it
within a dsa_switch_driver which has a list pointer and a pointer to
dsa_switch_ops. This allows us to take the list_head pointer out of
dsa_switch_ops, which is written to by {un,}register_switch_driver.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-09 15:44:50 -05:00
Andrew Lunn 5952758101 dsa: mv88e6xxx: Optimise atu_get
Lookup in the ATU can be performed starting from a given MAC
address. This is faster than starting with the first possible MAC
address and iterating all entries.

Entries are returned in numeric order. So if the MAC address returned
is bigger than what we are searching for, we know it is not in the
ATU.

Using the benchmark provided by Volodymyr Bendiuga
<volodymyr.bendiuga@gmail.com>,

https://www.spinics.net/lists/netdev/msg411550.html

on an Marvell Armada 370 RD, the test to add a number of static fdb
entries went from 1.616531 seconds to 0.312052 seconds.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-04 16:34:34 -05:00
Volodymyr Bendiuga 07b76ba9f8 dsa:mv88e6xxx: allow address 0x1 in smi_init
Some devices, such as the mv88e6097 do have ADDR[0] external and so it
is possible to configure the device to use SMI address 0x1. Remove the
restriction, as there are boards using this address.

Signed-off-by: Volodymyr Bendiuga <volodymyr.bendiuga@westermo.se>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-03 10:01:58 -05:00
Andrew Lunn 66e2809dd3 net: dsa: mv88e6xxx: Fix opps when adding vlan bridge
A port is not necessarily assigned to a netdev. And a port does not
need to be a member of a bridge. So when iterating over all ports,
check before using the netdev and bridge_dev for a port. Otherwise we
dereference a NULL pointer.

Fixes: da9c359e19 ("net: dsa: mv88e6xxx: check hardware VLAN in use")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-16 13:26:50 -05:00
Vivien Didelot a199d8b695 net: dsa: mv88e6xxx: add PPU operations
Some Marvell chips can enable/disable the PPU on demand. This is needed
to access the PHY registers when there is no indirection mechanism.

Add two new ppu_enable and ppu_disable ops to describe this and finally
get rid of the MV88E6XXX_FLAG_PPU* flags.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-06 11:32:28 -05:00
Vivien Didelot 17e708baf7 net: dsa: mv88e6xxx: add a soft reset operation
Marvell chips have different way to issue a software reset.

Old chips (such as 88E6060) have a reset bit in an ATU control register.

Newer chips moved this bit in a Global control register. Chips with
controllable PPU should reset the PPU when resetting the switch.

Add a new reset operation to implement these differences and introduce a
mv88e6xxx_software_reset() helper to wrap it conveniently.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-06 11:32:28 -05:00
Vivien Didelot 309eca6db9 net: dsa: mv88e6xxx: add helper to hardware reset
Add an helper to toggle the eventual GPIO connected to the reset pin.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-06 11:32:28 -05:00
Vivien Didelot 4ac4b5a623 net: dsa: mv88e6xxx: add helper to disable ports
Before resetting a switch, the ports should be set to the Disabled state
and the transmit queues should be drained.

Add an helper to explicit that.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-06 11:32:28 -05:00
Stefan Eichenberger 2bfcfcd3f3 net: dsa: mv88e6xxx: Use EDSA on mv88e6097
Use DSA_TAG_PROTO_EDSA as tag_protocol for the mv88e6097. The
initialisation was missing before.

Fixes: a1f482aa8c33 ("net: dsa: mv88e6xxx: Move the tagging protocol into info")
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@netmodule.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-06 10:17:02 -05:00
Andrew Lunn 3ce0e65eb6 net: dsa: mv88e6xxx: Implement mv88e6390 pause control
The mv88e6390 has a number flow control registers accessed via the
Flow Control register. Use these to set the pause control.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-03 23:18:39 -05:00
Andrew Lunn b35d322a1d net: dsa: mv88e6xxx: Refactor pause configuration
The mv88e6390 has a different mechanism for configuring pause.
Refactor the code into an ops function, and for the moment, don't add
any mv88e6390 code yet.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-03 23:18:39 -05:00
Andrew Lunn ef70b1119e net: dsa: mv88e6xxx: Refactor egress rate limiting
There are two different rate limiting configurations, depending on the
switch generation. Refactor this into ops.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-03 23:18:38 -05:00
Andrew Lunn 5f4366660d net: dsa: mv88e6xxx: Refactor setting of jumbo frames
Some switches support jumbo frames. Refactor this code into operations
in the ops structure.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-03 23:18:38 -05:00
Andrew Lunn 6e55f69846 net: dsa: mv88e6xxx: Reserved Management frames to CPU
Older devices have a couple of registers in global2. The mv88e6390
family has a single register in global1 behind which hides similar
configuration. Implement and op for this.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-03 23:18:38 -05:00
Andrew Lunn 56995cbc35 net: dsa: mv88e6xxx: Refactor CPU and DSA port setup
Older chips only support DSA tagging. Newer chips have both DSA and
EDSA tagging. Refactor the code by adding port functions for setting the
frame mode, egress mode, and if to forward unknown frames.

This results in the helper mv88e6xxx_6065_family() becoming unused, so
remove it.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
v3:
Verify mandatory ops for port setup
Don't set ether type for DSA port.
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-03 23:15:00 -05:00
Andrew Lunn 443d5a1b7d net: dsa: mv88e6xxx: Move the tagging protocol into info
Older chips support a single tagging protocol, DSA. New chips support
both DSA and EDSA, an enhanced version. Having both as an option
changes the register layouts. Up until now, it has been assumed that
if EDSA is supported, it will be used. Hence the register layout has
been determined by which protocol should be used. However, mv88e6390
has a different implementation of EDSA, which requires we need to use
the DSA tagging. Hence separate the selection of the protocol from the
register layout.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-03 23:15:00 -05:00
Andrew Lunn 33641994a6 net: dsa: mv88e6xxx: Monitor and Management tables
The mv88e6390 changes the monitor control register into the Monitor
and Management control, which is an indirection register to various
registers.

Add ops to set the CPU port and the ingress/egress port for both
register layouts, to global1

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-03 23:15:00 -05:00
Andrew Lunn ef0a731882 net: dsa: mv88e6xxx: Implement mv88e6390 tag remap
The mv88e6390 does not have the two registers to set the frame
priority map. Instead it has an indirection registers for setting a
number of different priority maps. Refactor the old code into an
function, implement the mv88e6390 version, and use an op to call the
right one.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-03 23:15:00 -05:00
Andreas Färber 5edef2f288 net: dsa: mv88e6xxx: Fix mv88e6xxx_g1_irq_free() interrupt count
mv88e6xxx_g1_irq_setup() sets up chip->g1_irq.nirqs interrupt mappings,
so free the same amount. This will be 8 or 9 in practice, less than 16.

Fixes: dc30c35be7 ("net: dsa: mv88e6xxx: Implement interrupt support.")
Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-28 15:59:40 -05:00
Stefan Eichenberger 15da3cc890 net: dsa: mv88e6xxx: add missing comment for MV88E6097
Add a missing comment for the MV88E6097 because of unification.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@netmodule.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-28 11:58:57 -05:00
Stefan Eichenberger c534178bdd net: dsa: mv88e6xxx: add g1_irqs definition for MV88E6097
Add the missing definition of g1_irqs for MV88E6097.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@netmodule.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-28 11:58:57 -05:00
Stefan Eichenberger 7d381a025f net: dsa: mv88e6xxx: add MV88E6097 switch
Add support for the MV88E6097 switch. The change was tested on an Armada
based platform with a MV88E6097 switch.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@netmodule.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-24 15:28:45 -05:00
Andrew Lunn 7f9ef3af39 net: dsa: mv88e6xxx: Move g1 stats code in global1.[ch]
Move the stats functions which access global 1 registers into
global1.c.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-22 09:55:30 -05:00
Andrew Lunn e0d8b61556 net: dsa: mv88e6xxx: Implement mv88e6390 get_stats
The mv88e6390 uses a different bit to select between bank0 and bank1
of the statistics. So implement an ops function for this, and pass the
selector bit to the generic stats read function. Also, the histogram
selection has moved for the mv88e6390, so abstract its selection as
well.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-22 09:55:30 -05:00
Andrew Lunn 052f947fe1 net: dsa: mv88e6xxx: Add stats_get_stats to ops structure
Different families have different sets of statistics. Abstract this
using a stats_get_stats op. The mv88e6390 needs a different
implementation, which will be added later.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-22 09:55:30 -05:00
Andrew Lunn dfafe449bb net: dsa: mv88e6xxx: Add stats_get_sset_count|string to ops structure
Different families have different sets of statistics. Abstract this
using a stats_get_sset_count and stats_get_strings op. Each stat has a
bitmap, and the ops implementer uses a bit map mask to count the
statistics which apply for the family, or return the list of strings.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
v2:
  Rename functions to avoid _ prefix.
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-22 09:55:30 -05:00
Andrew Lunn de2273876e net: dsa: mv88e6xxx: Add mv88e6390 statistics unit init
The statistics unit on the mv88e6390 needs the histogram mode to be
configured in a different register compared to other devices. Add an
ops to do this.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
v2:
  Rename to mv88e6390_g1_stats_set_histogram
  Move into global1.c
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-22 09:55:30 -05:00
Andrew Lunn 7952347391 net: dsa: mv88e6xxx: Add mv88e6390 stats snapshot operation
The MV88E6390 has a control register for what the histogram statistics
actually contain. This means the stat_snapshot method should not set
this information. So implement the 6390 stats_snapshot function without
these bits.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-22 09:55:30 -05:00
Andrew Lunn 4b325d8c84 net: dsa: mv88e6xxx: Add comment about family a device belongs to
Knowing the family of device belongs to helps with picking the ops
implementation which is appropriate to the device. So add a comment to
each structure of ops.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-22 09:55:30 -05:00
Andrew Lunn a605a0fe71 net: dsa: mv88e6xxx: Abstract stats_snapshot into ops structure
Taking a stats snapshot differs between same families. Abstract this
into an ops member. At the same time, move the code into global1.[ch],
since the registers are in the global1 range.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-22 09:55:30 -05:00
Andrew Lunn 1a3b39ecfe net: dsa: mv88e6xxx: Add the mv88e6390 family
With the devices added to the tables, the probe will recognize the
switch. This however is not sufficient to make it work properly, other
changes are needed because of incompatibilities.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-22 09:55:30 -05:00
Andrew Lunn 096eea0ff8 net: dsa: mv88e6xxx: Fix unused variable warning by using variable
_mv88e6xxx_stats_wait() did not check the return value from
 mv88e6xxx_g1_read(), so the compiler complained about set but unused
 err.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-22 09:55:30 -05:00
Andrew Lunn b4308f046a net: dsa: mv88e6xxx: Take switch out of reset before probe
The switch needs to be taken out of reset before we can read its ID
register on the MDIO bus.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-22 09:55:30 -05:00
Andrew Lunn 61f7c3f803 net: dsa: mv88e6xxx: Hold the mutex while freeing g1 interrupts
Freeing interrupts requires switch register access to mask the
interrupts. Hence we must hold the register mutex.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-20 21:16:13 -05:00
Andrew Lunn 3dd0ef05f7 net: dsa: mv88e6xxx: Fix cleanup on error for g1 interrupt setup
On error, remask the interrupts, release all maps, and remove the
domain. This cannot be done using the mv88e6xxx_g1_irq_free() because
some of these actions are not idempotent.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-20 21:16:13 -05:00
Andrew Lunn 3460a5770c net: dsa: mv88e6xxx: Mask g1 interrupts and free interrupt
Fix the g1 interrupt free code such that is masks any further
interrupts, and then releases the interrupt.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-20 21:16:13 -05:00
Andrew Lunn 46712644d6 net: dsa: mv88e6xxx: Fix unconditional irq freeing
Trying to remove an IRQ domain that was not created results in an
Opps. Add the necessary checks that the irqs were created before
freeing them.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-20 21:16:13 -05:00
Andrew Lunn a3db3d3a52 net: dsa: mv88e6xxx: Fix typos when removing g1 interrupts
Simple typos, s/g2/g1/

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-20 21:16:13 -05:00
Andrew Lunn 94d66ae631 net: dsa: mv88e6xxx: 6351 family also has RGMII delays
The recent refactoring of setting the MAC configuration broke setting
of RGMII delays, via the phy-mode, on the 6351 family. Add the missing
ops to the structure.

Fixes: 7340e5ecdbb1 ("net: dsa: mv88e6xxx: setup port's MAC")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-13 22:36:35 -05:00
Vivien Didelot d78343d2d7 net: dsa: mv88e6xxx: setup port's MAC
Now that we have setters to configure the port's MAC, use them to
refactor the port setup and adjust_link code.

Note that port's MAC speed, duplex or RGMII delay must not be changed
unless the port's link is forced down. So wrap all that in a
mv88e6xxx_port_setup_mac function.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:40:00 -04:00
Vivien Didelot 96a2b40c7b net: dsa: mv88e6xxx: add port's MAC speed setter
While the two bits for link, duplex or RGMII delays are used the same
way on chips supporting the said feature, the two bits for speed have
different meaning for most of the chips out there.

Speed value is stored in bits 1:0, 0x3 means unforce (normal detection).

Some chips reuse values for alternative speeds when bit 12 is set.

Newer chips with speed > 1Gbps reuse value 0x3 thus need a new bit 13.

Here are the values to write in register 0x1 to (un)force speed:

    | Speed   | 88E6065 | 88E6185 | 88E6352 | 88E6390 | 88E6390X |
    | ------- | ------- | ------- | ------- | ------- | -------- |
    | 10      | 0x0000  | 0x0000  | 0x0000  | 0x2000  | 0x2000   |
    | 100     | 0x0001  | 0x0001  | 0x0001  | 0x2001  | 0x2001   |
    | 200     | 0x0002  | NA      | 0x1001  | 0x3001  | 0x3001   |
    | 1000    | NA      | 0x0002  | 0x0002  | 0x2002  | 0x2002   |
    | 2500    | NA      | NA      | NA      | 0x3003  | 0x3003   |
    | 10000   | NA      | NA      | NA      | NA      | 0x2003   |
    | unforce | 0x0003  | 0x0003  | 0x0003  | 0x0000  | 0x0000   |

This patch implements a generic mv88e6xxx_port_set_speed() function used
by chip-specific wrappers to filter supported ports and speeds.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:40:00 -04:00
Vivien Didelot a0a0f6229b net: dsa: mv88e6xxx: add port's RGMII delay setter
Some chips such as 88E6352 and 88E6390 can be programmed to add delays
to RXCLK for IND inputs or to GTXCLK for OUTD outputs when port is in
RGMII mode.

Add a port function to program such delays according to the provided PHY
interface mode.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:40:00 -04:00
Vivien Didelot 7f1ae07b51 net: dsa: mv88e6xxx: add port duplex setter
Similarly to port's link, add setter to force port's half duplex, full
duplex or let normal duplex detection occurs.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:40:00 -04:00
Vivien Didelot 08ef7f1022 net: dsa: mv88e6xxx: add port link setter
Most of the chips will have a port register control bits to force the
port's link up, down, or let normal link detection occurs.

Implement such operation to use it later when setting duplex, etc.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:40:00 -04:00
Vivien Didelot 385a0995cc net: dsa: mv88e6xxx: add port 802.1Q mode setter
Add port functions to set the port 802.1Q mode.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:39:59 -04:00
Vivien Didelot 77064f37b9 net: dsa: mv88e6xxx: add port PVID accessors
Add port functions to access the ports default VID.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:39:59 -04:00
Vivien Didelot b4e48c500e net: dsa: mv88e6xxx: add port FID accessors
Add functions to port files to access the ports default FID.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:39:59 -04:00
Vivien Didelot 5a7921f46d net: dsa: mv88e6xxx: add port vlan map setter
Add a port function to access the Port Based VLAN Map register.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:39:59 -04:00
Vivien Didelot e28def3329 net: dsa: mv88e6xxx: add port state setter
Add the port STP state setter to the port files.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:39:58 -04:00
Vivien Didelot 18abed211c net: dsa: mv88e6xxx: add port files
The Marvell switches contains one internal SMI device per port, called
"Port Registers". Depending on the model, the addresses of these devices
start from 0x0, 0x8 or 0x10.

Start moving Port Registers specific code to their own files.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:39:58 -04:00
Wei Yongjun 68497a87c4 net: dsa: mv88e6xxx: use setup_timer to simplify the code
Use setup_timer function instead of initializing timer with the function
and data fields.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-26 17:21:59 -04:00
Wei Yongjun aa0938c6d7 net: dsa: mv88e6xxx: fix non static symbol warning
Fixes the following sparse warning:

drivers/net/dsa/mv88e6xxx/chip.c:2866:5: warning:
 symbol 'mv88e6xxx_g1_set_switch_mac' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 14:26:00 -04:00
Andrew Lunn dc30c35be7 net: dsa: mv88e6xxx: Implement interrupt support.
The switch can have up to two interrupt controllers. One of these
contains the interrupts from the integrated PHYs, so is useful to
export. The Marvell PHY driver can then be used in interrupt mode,
rather than polling, speeding up PHY handling and reducing load on the
MDIO bus.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-17 11:18:08 -04:00
Vivien Didelot ee4dc2e753 net: dsa: mv88e6xxx: add eeprom ops
Remove EEPROM flags in favor of new {get,set}_eeprom chip-wide
functions in the mv88e6xxx_ops structure.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-30 01:26:00 -04:00
Vivien Didelot b073d4e2b1 net: dsa: mv88e6xxx: add set_switch_mac to ops
Add a set_switch_mac chip-wide function to mv88e6xxx_ops and remove
MV88E6XXX_FLAG_G2_SWITCH_MAC flags.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-30 01:26:00 -04:00
Vivien Didelot b3469dd8ad net: dsa: mv88e6xxx: add chip-wide ops
Introduce a mv88e6xxx_ops structure to describe supported chip-wide
functions and assign the correct variant to the chip models.

For the moment, add only PHY access routines. This allows to get rid of
the PHY ops structures and the usage of PHY flags.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-30 01:26:00 -04:00
Vivien Didelot c08026aba7 net: dsa: mv88e6xxx: rename mv88e6xxx_ops
The mv88e6xxx_ops is used to describe how to access the chip registers.
It can be through SMI (via an MDIO bus), or via another interface such
as crafted remote management frames.

The correct BUS operations structure is chosen at runtime, depending on
the chip address and connectivity.

We will need the mv88e6xxx_ops name for future chip-wide operation
structure, thus rename mv88e6xxx_ops to more explicit mv88e6xxx_bus_ops.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-30 01:26:00 -04:00
Vivien Didelot b4e47c0fb9 net: dsa: mv88e6xxx: rename mv88e6xxx_vtu_stu_entry
The STU (if the switch has one) is abstracted and accessed through the
VTU operations and data registers.

Thus rename the mv88e6xxx_vtu_stu_entry struct to mv88e6xxx_vtu_entry.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-30 01:25:59 -04:00
Vivien Didelot 370b4ffbd8 net: dsa: mv88e6xxx: add mv88e6xxx_num_ports helper
Add an mv88e6xxx_num_ports helper instead of digging in the chip info
structure.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-30 01:25:59 -04:00
Vivien Didelot de33376b39 net: dsa: mv88e6xxx: expose mv88e6xxx_num_databases
The mv88e6xxx_num_databases will be used by shared code, so move it
inline to the header file.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-30 01:25:59 -04:00
Vivien Didelot 6dc10bbc46 net: dsa: mv88e6xxx: add flags for FID registers
Add flags to describe the presence of Global 1 ATU FID register (0x01)
and VTU FID register (0x02), instead of checking families.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-30 01:25:59 -04:00
Vivien Didelot a935c0523c net: dsa: mv88e6xxx: add global1 helpers
The Global (1) internal SMI device is an extended set of registers
containing ATU, PPU, VTU, STU, etc.

It is present on every switches, usually at SMI address 0x1B. But old
models such as 88E6060 access it at address 0xF, thus using REG_GLOBAL
is erroneous.

Add a global1_addr info member used by mv88e6xxx_g1_{read,write} and
mv88e6xxx_g1_wait helpers in a new global1.c file.

This patch finally removes _mv88e6xxx_reg_{read,write}, in favor on the
appropriate helpers. No functional changes here.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-30 01:25:59 -04:00
Wei Yongjun b3f5bf64d8 net: dsa: mv88e6xxx: fix non static symbol warnings
Fixes the following sparse warnings:

drivers/net/dsa/mv88e6xxx/chip.c:219:5: warning:
 symbol 'mv88e6xxx_port_read' was not declared. Should it be static?
drivers/net/dsa/mv88e6xxx/chip.c:227:5: warning:
 symbol 'mv88e6xxx_port_write' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-25 23:47:31 -04:00
Vivien Didelot 749efcb814 net: dsa: mv88e6xxx: implement DSA port fast ageing
Now that the DSA layer handles port fast ageing on correct STP change,
simplify _mv88e6xxx_port_state and implement mv88e6xxx_port_fast_age.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-23 08:38:50 -04:00
Andrew Lunn 0e7b99257b net: dsa: mv88e6xxx: Add helper for accessing port registers
There is a device coming soon which places its port registers
somewhere different to all other Marvell switches supported so far.
Add helper functions for reading/writing port registers, making it
easier to handle this new device.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-22 02:20:12 -04:00
Vivien Didelot 8847293992 net: dsa: mv88e6xxx: handle multiple ports in ATU
An address can be loaded in the ATU with multiple ports, for instance
when adding multiple ports to a Multicast group with "bridge mdb".

The current code doesn't allow that. Add an helper to get a single entry
from the ATU, then set or clear the requested port, before loading the
entry back in the ATU.

Note that the required _mv88e6xxx_atu_getnext function is defined below
mv88e6xxx_port_db_load_purge, so forward-declare it for the moment. The
ATU code will be isolated in future patches.

Fixes: 83dabd1fa8 ("net: dsa: mv88e6xxx: make switchdev DB ops generic")
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 00:04:50 -04:00
Vivien Didelot ca070c1097 net: dsa: mv88e6xxx: make global2 code optional
Since not every chip has a Global2 set of registers, make its support
optional, in which case the related functions will return -EOPNOTSUPP.

This also allows to reduce the size of the mv88e6xxx driver for devices
such as home routers embedding Ethernet chips without Global2 support.

It is present on most recent chips, thus enable its support by default.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-06 12:58:14 -07:00
Vivien Didelot ec5612761c net: dsa: mv88e6xxx: move Global2 code
Marvell chips are composed of multiple SMI devices. One of them at
address 0x1C is called Global2. It provides an extended set of
registers, used for interrupt control, EEPROM access, indirect PHY
access (to bypass the PHY Polling Unit) and cross-chip related setup.

Most chips have it, but some others don't (older ones such as 6060).

Now that its related code is isolated in mv88e6xxx_g2_* functions, move
it to its own global2.c file, making most of its setup code static.
Document each registers in the meantime.

Its compilation can be later avoided for chips without such registers.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-06 12:58:14 -07:00
Vivien Didelot 04bed1434d net: dsa: remove ds_to_priv
Access the priv member of the dsa_switch structure directly, instead of
having an unnecessary helper.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-01 22:51:12 -07:00
Vivien Didelot 7df8fbdd44 net: dsa: mv88e6xxx: add MDB support
Add support for the MDB operations. This consists of
loading/purging/dumping multicast addresses for a given port in the ATU.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-31 14:15:43 -07:00
Vivien Didelot 83dabd1fa8 net: dsa: mv88e6xxx: make switchdev DB ops generic
The MDB support for the mv88e6xxx driver will be very similar to the FDB
support, since it consists of loading/purging/dumping address to/from
the Address Translation Unit (ATU).

Prepare the support for MDB by making the FDB code accessing the ATU
generic. The FDB operations now provide access to the unicast addresses
while the MDB operations will provide access to the multicast addresses.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-31 14:15:43 -07:00
David S. Miller 6abdd5f593 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
All three conflicts were cases of simple overlapping
changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-30 00:54:02 -04:00
Vivien Didelot 9d490b4ee4 net: dsa: rename switch operations structure
Now that the dsa_switch_driver structure contains only function pointers
as it is supposed to, rename it to the more appropriate dsa_switch_ops,
uniformly to any other operations structure in the kernel.

No functional changes here, basically just the result of something like:
s/dsa_switch_driver *drv/dsa_switch_ops *ops/g

However keep the {un,}register_switch_driver functions and their
dsa_switch_drivers list as is, since they represent the -- likely to be
deprecated soon -- legacy DSA registration framework.

In the meantime, also fix the following checks from checkpatch.pl to
make it happy with this patch:

    CHECK: Comparison to NULL could be written "!ops"
    #403: FILE: net/dsa/dsa.c:470:
    +	if (ops == NULL) {

    CHECK: Comparison to NULL could be written "ds->ops->get_strings"
    #773: FILE: net/dsa/slave.c:697:
    +		if (ds->ops->get_strings != NULL)

    CHECK: Comparison to NULL could be written "ds->ops->get_ethtool_stats"
    #824: FILE: net/dsa/slave.c:785:
    +	if (ds->ops->get_ethtool_stats != NULL)

    CHECK: Comparison to NULL could be written "ds->ops->get_sset_count"
    #835: FILE: net/dsa/slave.c:798:
    +		if (ds->ops->get_sset_count != NULL)

    total: 0 errors, 0 warnings, 4 checks, 784 lines checked

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-24 21:45:39 -07:00
Jamie Lentin 1bc261fabe net: mv88e6xxx: Fix ingress rate removal for mv6131 chips
The PORT_RATE_CONTROL register works differently on 88e6095/6095f/6131
in comparison to 6123/61/65, and 0x0 disables. The distinction was lost
Linux 4.1 --> 4.2

Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23 16:57:33 -07:00
Jamie Lentin f027e0cc82 net: mv88e6xxx: Enable PORT_CONTROL_FORWARD_UNKNOWN for DSA-tagged CPU ports
Without it, a mv88e6131 switch will not forward incoming unicast
packets to the CPU port.

Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22 21:08:08 -07:00
Andrew Lunn 930188ceca dsa: mv88e6xxx: Delete ppu timer when removing module
The PPU method of accessing PHYs makes use of a timer. Make sure this
timer is deleted before unloading the driver.

Reported-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22 21:08:08 -07:00
Andrew Lunn 2bbb33be03 net: dsa: mv88e6xxx: Fix support for DSA tagging for older switches.
Older chips only support DSA tagging on the CPU port. New devices
support both DSA and EDSA. The driver needs to tell the core the tag
protocol to use, and configure the switch for what is available.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22 21:08:08 -07:00
Andrew Lunn 7b314362a2 net: dsa: Allow the DSA driver to indicate the tag protocol
DSA drivers may drive different families of switches which need
different tag protocol. Rather than hard code the tag protocol in the
driver structure, have a callback for the DSA core to call.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22 21:08:08 -07:00
Andrew Lunn 30853553c0 dsa: mv88e6xxx: Make mv88e6xxx_wait() timeout verbose
When mv88e6xxx_wait() returns a timeout, something bad has
happened. Make sure it is noticed by logging an error.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 17:14:07 -07:00
Andrew Lunn 0f02b4f752 dsa: mv88e6xxx: Use mv88e6xx_wait in mv88e6xxx_update()
Now that mv88e6xx_wait() iterated on a counter than a fixed time
interval, it implements the same mechanism as mv88e6xxx_update() uses.
So use it in mv88e6xx_wait().

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 17:14:07 -07:00
Andrew Lunn 6441e6695a dsa: mv88e6xxx: Timeout based on iterations, not time
The mv88e6xxx driver times out operations on the switch based on
looping until an elapsed wall clock time is reached. However, if
usleep_range() sleeps much longer than expected, it could timeout with
an error without actually checking to see if the devices has completed
the operation. So replace the elapsed time with a fixed upper bound on
the number of loops.

Testing on various switches has shown that switches takes either 0 or
1 iteration, so a maximum of 16 iterations is a safe limit.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 17:14:07 -07:00
Vivien Didelot 9c93829c01 net: dsa: mv88e6xxx: use the new PHY API
This commit replaces every MDIO direct or indirect access with the new
generic mv88e6xxx_phy_* routines.

This allows us to get rid of the mv88e6xxx_mdio_{read,write}_{,in}direct
and {_,}mv88e6xxx_mdio_page_{read,write} functions.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15 16:43:56 -07:00
Vivien Didelot 09cb7dfd3f net: dsa: mv88e6xxx: describe PHY page and SerDes
Add mv88e6xxx_phy_page_{read,write} routines and use them to access the
SerDes PHY device registers.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15 16:43:55 -07:00
Vivien Didelot e57e5e7769 net: dsa: mv88e6xxx: abstract PHY ops
Old chips use a direct access to the PHY devices registers. Next chips
have a PHY Polling Unit (PPU) which needs to be disabled before
accessing PHY registers. Newer chips have an indirect access to the PHY
devices so that disabling the PPU is not necessary.

Introduce a new phy_ops structure in the chip to describe the required
PHY access routines.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15 16:43:55 -07:00
Vivien Didelot 57c67cf57a net: dsa: mv88e6xxx: rework Global2 SMI PHY access
Describe the presence of the Global2 SMI PHY registers, used to
indirectly access the internal SMI devices registers on some chips.

Also temporarily forward declare mv88e6xxx_g2_smi_phy_{read,write} to
use them in mv88e6xxx_mdio_{read,write}_indirect, before getting rid of
the later.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15 16:43:55 -07:00
Vivien Didelot a0ffff2484 net: dsa: mv88e6xxx: describe Multi-chip registers
Add flags to describe the presence of SMI Command and Data registers
used to indirectly access internal SMI devices registers when the switch
SMI address is not zero.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15 16:43:55 -07:00
Vivien Didelot 2d79af6e35 net: dsa: mv88e6xxx: rename _mv88e6xxx_wait
Now that there is no locked version of the wait routine anymore, rename
the _ prefixed version and make it use the new read API.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15 16:43:55 -07:00
Arnd Bergmann 601bbae0bc dsa: mv88e6xxx: hide unused functions
When CONFIG_NET_DSA_HWMON is disabled, we get warnings about two unused
functions whose only callers are all inside of an #ifdef:

drivers/net/dsa/mv88e6xxx.c:3257:12: 'mv88e6xxx_mdio_page_write' defined but not used [-Werror=unused-function]
drivers/net/dsa/mv88e6xxx.c:3244:12: 'mv88e6xxx_mdio_page_read' defined but not used [-Werror=unused-function]

This adds another ifdef around the function definitions. The warnings
appeared after the functions were marked 'static', but the problem
was already there before that.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 57d3231057 ("net: dsa: mv88e6xxx: fix style issues")
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-12 17:32:21 -07:00
Vivien Didelot 8f6345b248 net: dsa: mv88e6xxx: kill last locked reg_read
Get rid of the last usage of the locked mv88e6xxx_reg_read function with
a new mv88e6xxx_port_read helper, useful later for chips with different
port registers base address.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-20 21:10:54 -07:00
Vivien Didelot 855b193290 net: dsa: mv88e6xxx: rework EEPROM access
The 6352 family of switches and compatibles provide a 8-bit address and
16-bit data access to an optional EEPROM.

Newer chip such as the 6390 family slightly changed the access to 16-bit
address and 8-bit data.

This commit cleans up the EEPROM access code for 16-bit access and makes
it easy to eventually introduce future support for 8-bit access.

Here's a list of notable changes brought by this patch:

  - provide Global2 unlocked helpers for EEPROM commands
  - remove eeprom_mutex, only reg_lock is necessary for driver functions
  - eeprom_len is 0 for chip without EEPROM, so return it directly
  - the Running bit must be 0 before r/w, so wait for Busy *and* Running
  - remove now unused mv88e6xxx_wait and mv88e6xxx_reg_write
  - other than that, the logic (in _{get,set}_eeprom16) didn't change

Chips with an 8-bit EEPROM access will require to implement the
8-suffixed variant of G2 helpers and the related flag:

    #define MV88E6XXX_FLAGS_EEPROM8	\
    	(MV88E6XXX_FLAG_G2_EEPROM_CMD |	\
    	 MV88E6XXX_FLAG_G2_EEPROM_ADDR)

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-20 21:10:54 -07:00
Vivien Didelot 2cfcd96416 net: dsa: mv88e6xxx: add support for DSA ageing time
Implement the DSA driver function to configure the bridge ageing time.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-19 19:42:02 -07:00
Vivien Didelot acddbd2147 net: dsa: mv88e6xxx: add G1 helper for ageing time
All Marvell switch chips from (88E6060 to 88E6390) have a ATU Control
register containing bits 11:4 to configure an ATU Age Time quotient.

However the coefficient used to calculate the ATU Age Time vary with the
models. E.g. 88E6060, 88E6352 and 88E6390 use respectively 16, 15 and
3.75 seconds.

Add a age_time_coeff to the info structure to handle this and a Global 1
helper to set the default age time of 5 minutes in the setup code.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-19 19:42:02 -07:00
Vivien Didelot 8ec61c7f7c net: dsa: mv88e6xxx: add cap for IRL
Add capability flags to describe the presence of Ingress Rate Limit unit
registers and an helper function to clear it.

In the meantime, fix a few harmless issues:

  - 6185 and 6095 don't have such registers (reserved)
  - the previous code didn't wait for the IRL operation to complete

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-19 19:42:01 -07:00
Vivien Didelot 9bda889fae net: dsa: mv88e6xxx: add cap for Priority Override
Add flags and helpers to describe the presence of Priority Override
Table (POT) related registers and simplify the setup of Global 2.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-19 19:42:01 -07:00
Vivien Didelot 63ed880dea net: dsa: mv88e6xxx: add cap for PVT
Add flags to describe the presence of Cross-chip Port VLAN Table (PVT)
related registers and simplify the setup of Global 2.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-19 19:42:01 -07:00
Vivien Didelot 3b4caa1b1c net: dsa: mv88e6xxx: rework Switch MAC setter
Switches such as 88E6185 as 3 Switch MAC registers in Global 1. Newer
chips such as 88E6352 have freed these registers in favor of an indirect
access in a Switch MAC/WoL/WoF register in Global 2.

Explicit this difference with G1 and G2 helpers and flags.

Also, note that this indirect access is a single-register which doesn't
require to wait for the operation to complete (like Switch MAC, Trunk
Mapping, etc.), in contrary to multi-registers indirect accesses with
several operations and a busy bit.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-19 19:42:01 -07:00
Vivien Didelot 47395ed280 net: dsa: mv88e6xxx: add cap for MGMT Enables bits
Some switches provide a Rsvd2CPU mechanism used to choose which of the
16 reserved multicast destination addresses matching 01:80:c2:00:00:0x
should be considered as MGMT and thus forwarded to the CPU port.

Other switches extend this mechanism to also configure as MGMT the
additional 16 reserved multicast addresses matching 01:80:c2:00:00:2x.

This mechanism is exposed via two registers in Global 2, and an Rsvd2CPU
enable bit in the management register.

Newer chip (such as 88E6390) has replaced these registers with a new
indirect MGMT mechanism in Global 1.

The patch adds two MV88E6XXX_FLAG_G2_MGMT_EN_{0,2}X flags to describe
the presence of these Global 2 registers. If 88E6390 support is added, a
MV88E6XXX_FLAG_G1_MGMT_CTRL flag will be needed to setup Rsvd2CPU.

Note: all switches still support in parallel the ATU Load operation with
an MGMT Entry State to forward such frames in a less convenient way.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-19 19:42:01 -07:00
Vivien Didelot 5154041fa7 net: dsa: mv88e6xxx: extract trunk mapping
The Trunk Mask and Trunk Mapping registers are two Global 2 indirect
accesses to trunking configuration.

Add helpers for these tables and simplify the Global 2 setup.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-19 19:42:00 -07:00
Vivien Didelot f22ab64123 net: dsa: mv88e6xxx: extract device mapping
The Device Mapping register is an indirect table access.

Provide helpers to access this table and explicit the checking of the
new DSA_RTABLE_NONE routing table value.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-19 19:42:00 -07:00
Vivien Didelot 9729934c4f net: dsa: mv88e6xxx: split setup of Global 1 and 2
Separate the setup of Global 1 and Global 2 internal SMI devices and add
a flag to describe the presence of this second registers set.

Also rearrange the G1 setup in the registers order.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-19 19:42:00 -07:00
Vivien Didelot d51c542b78 net: dsa: mv88e6xxx: remove basic function flags
All 88E6xxx Marvell switches (even the old not supported yet 88E6060)
have at least an ATU, per-port STP states and VLAN map, to run basic
switch functions such as Spanning Tree and port based VLANs.

Get rid of the related MV88E6XXX_FLAG_{ATU,PORTSTATE,VLANTABLE} flags,
as they are defaults to every chip.

This enables STP on 6185 and removes many inconsistencies on others.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-19 19:42:00 -07:00
Vivien Didelot fad09c73c2 net: dsa: mv88e6xxx: rename single-chip support
With the upcoming support for cross-chip operations, it will be hard to
distinguish portions of code supporting a single-chip or a switch fabric
of interconnected chips.

Make the code clearer now, by renaming the mv88e6xxx_priv_state chip
structure to mv88e6xxx_chip. This patch brings no functional changes.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25 11:29:47 -04:00