Commit Graph

29 Commits

Author SHA1 Message Date
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
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
7e3108fab5 net: dsa: make some structures const
Make these const as they are not modified anywhere.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-29 16:05:07 -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
Vivien Didelot
08f500610f net: dsa: rename switch EEE ops
To avoid confusion with the PHY EEE settings, rename the .set_eee and
.get_eee ops to respectively .set_mac_eee and .get_mac_eee.

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>
2017-08-01 20:09:10 -07:00
Vivien Didelot
46587e4a31 net: dsa: remove PHY device argument from .set_eee
The DSA switch operations for EEE are only meant to configure a port's
MAC EEE settings. The port's PHY EEE settings are accessed by the DSA
layer and must be made available via a proper PHY driver.

In order to reduce this confusion, remove the phy_device argument from
the .set_eee operation.

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>
2017-08-01 20:09:10 -07:00
Vivien Didelot
c48f7eb302 net: dsa: call phy_init_eee in DSA layer
All DSA drivers are calling phy_init_eee if eee_enabled is true.

Move up this statement in the DSA layer to simplify the DSA drivers.
qca8k does not require to cache the ethtool_eee structures from now on.

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>
2017-08-01 20:09:10 -07:00
Vivien Didelot
193da90e60 net: dsa: qca8k: empty qca8k_get_eee
phy_ethtool_get_eee is already called by the DSA layer, thus remove the
duplicated call in the qca8k driver.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01 20:09:09 -07:00
Vivien Didelot
a2444ab83e net: dsa: qca8k: do not cache unneeded EEE fields
The qca8k driver is currently caching a bitfield of the supported member
of a ethtool_eee private structure, which is unused.

Only the eee_enabled field of the private ethtool_eee copy is updated,
thus using p->advertised and p->lp_advertised is also erroneous.

Remove the usage of these private ethtool_eee members and only rely on
phy_ethtool_get_eee to assign the eee_active member.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01 20:09:09 -07:00
Vivien Didelot
dca2098931 net: dsa: qca8k: enable EEE once
If EEE is queried enabled, qca8k_set_eee calls qca8k_eee_enable_set
twice (because it is already called in qca8k_eee_init). Fix that.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01 20:09:09 -07:00
Vivien Didelot
06d7b5c3ac net: dsa: qca8k: fix EEE init
The qca8k obviously copied code from the sf2 driver as how to set EEE:

    if (e->eee_enabled) {
        p->eee_enabled = qca8k_eee_init(ds, port, phydev);
        if (!p->eee_enabled)
            ret = -EOPNOTSUPP;
    }

But it did not use the same logic for the EEE init routine, which is
"Returns 0 if EEE was not enabled, or 1 otherwise". This results in
returning -EOPNOTSUPP on success and caching EEE enabled on failure.

This patch fixes the returned value of qca8k_eee_init.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01 20:09:09 -07:00
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
Vivien Didelot
8b0d3ea555 net: dsa: store CPU port pointer in the tree
A dsa_switch_tree instance holds a dsa_switch pointer and a port index
to identify the switch port to which the CPU is attached.

Now that the DSA layer has a dsa_port structure to hold this data, use
it to point the switch CPU port.

This patch simply substitutes s/dst->cpu_switch/dst->cpu_dp->ds/ and
s/dst->cpu_port/dst->cpu_dp->index/.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.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>
2017-05-17 14:19:12 -04:00
Vivien Didelot
922754a48a net: dsa: qca8k: 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
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
Wei Yongjun
a084ab3354 net: dsa: qca8k: use mdio_module_driver to simplify the code
mdio_module_driver() makes the code simpler by eliminating
boilerplate code.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-22 03:17:34 -04:00
Wei Yongjun
fcfbfd68b3 net: dsa: qca8k: fix non static symbol warning
Fixes the following sparse warning:

drivers/net/dsa/qca8k.c:259:22: warning:
 symbol 'qca8k_regmap_config' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-22 03:17:34 -04:00
John Crispin
8941ee36e3 net-next: dsa: qca8k: remove empty set_addr() stub
The set_addr() callback is now optional. Remove the empty stub that qca8k
has.

Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-20 04:47:44 -04:00
John Crispin
6b93fb4648 net-next: dsa: add new driver for qca8xxx family
This patch contains initial support for the QCA8337 switch. It
will detect a QCA8337 switch, if present and declared in the DT.

Each port will be represented through a standalone net_device interface,
as for other DSA switches. CPU can communicate with any of the ports by
setting an IP@ on ethN interface. Most of the extra callbacks of the DSA
subsystem are already supported, such as bridge offloading, stp, fdb.

Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16 04:31:51 -04:00