linux-toradex.git/net/dsa/slave.c, branch v4.1.10

net: dsa: Do not override PHY interface if already configured

2015-09-29T17:26:26+00:00

[ Upstream commit 211c504a444710b1d8ce3431ac19f2578602ca27 ]

In case we need to divert reads/writes using the slave MII bus, we may have
already fetched a valid PHY interface property from Device Tree, and that
mode is used by the PHY driver to make configuration decisions.

If we could not fetch the "phy-mode" property, we will assign p->phy_interface
to PHY_INTERFACE_MODE_NA, such that we can actually check for that condition as
to whether or not we should override the interface value.

Fixes: 19334920eaf7 ("net: dsa: Set valid phy interface type")
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

dsa: implement ndo_get_iflink

2015-04-02T18:05:01+00:00

Don't use dev->iflink anymore.

CC: Florian Fainelli 
Signed-off-by: Nicolas Dichtel 
Signed-off-by: David S. Miller

net: dsa: Add basic framework to support ndo_fdb functions

2015-03-29T20:23:54+00:00

Provide callbacks for ndo_fdb_add, ndo_fdb_del, and ndo_fdb_dump.

Reviewed-by: Andrew Lunn 
Tested-by: Andrew Lunn 
Signed-off-by: Guenter Roeck 
Signed-off-by: David S. Miller

net: dsa: Handle non-bridge master change

2015-03-25T18:04:57+00:00

Master change notifications may occur other than when joining or
leaving a bridge, for example when being added to or removed from
a bond or Open vSwitch. In that case, do nothing instead of asking
the switch driver to remove a port from a bridge that it didn't join.

Signed-off-by: Guenter Roeck 
Acked-by: Florian Fainelli 
Signed-off-by: David S. Miller

switchdev: use new swdev ops

2015-03-16T04:14:43+00:00

Move swdev wrappers over to new swdev ops (from previous ndo ops).  No
functional changes to the implementation.

Signed-off-by: Scott Feldman 

rocker: move to new swdev ops

Signed-off-by: Scott Feldman 

dsa: move to new swdev ops

Signed-off-by: Scott Feldman 
Signed-off-by: David S. Miller

net: dsa: do not use slave MII bus for fixed PHYs

2015-03-14T23:16:44+00:00

Commit cd28a1a9baee7 ("net: dsa: fully divert PHY reads/writes if
requested") introduced a check for particular PHYs that need to be
accessed using the slave MII bus created by DSA, but this check was too
inclusive. This would prevent fixed PHYs from being successfully
registered because those should not go through the slave MII bus created
by DSA.

Make sure we check that the PHY is not a fixed PHY to prevent that from
happening.

Fixes: cd28a1a9baee7 ("net: dsa: fully divert PHY reads/writes if requested")
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: dsa: fully divert PHY reads/writes if requested

2015-03-11T21:56:29+00:00

In case a PHY is found via Device Tree, and is also flagged by the
switch driver as needing indirect reads/writes using the switch driver
implemented MDIO bus, make sure that we bind this PHY to the slave MII
bus in order for this to happen.

Without this, we would succeed in having the PHY driver probe()'s
function to use slave MII bus read/write functions, because this is done
during dsa_slave_mii_init(), but past that point, the PHY driver would
not go through these diverted reads and writes.

Fixes: 0d8bcdd383b88 ("net: dsa: allow for more complex PHY setups")
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: dsa: move PHY setup on DSA MII bus to its own function

2015-03-11T21:56:28+00:00

In preparation for dealing with indirect reads and writes towards
certain PHY devices, move the code which deals with binding the PHY
device to the slave MII bus created by DSA to its own function:
dsa_slave_phy_connect().

Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: dsa: Introduce dsa_is_port_initialized

2015-02-25T22:57:48+00:00

To avoid race conditions when using the ds->ports[] array,
we need to check if the accessed port has been initialized.
Introduce and use helper function dsa_is_port_initialized
for that purpose and use it where needed.

Signed-off-by: Guenter Roeck 
Signed-off-by: David S. Miller

net: dsa: integrate with SWITCHDEV for HW bridging

2015-02-25T22:03:38+00:00

In order to support bridging offloads in DSA switch drivers, select
NET_SWITCHDEV to get access to the port_stp_update and parent_get_id
NDOs that we are required to implement.

To facilitate the integratation at the DSA driver level, we implement 3
types of operations:

- port_join_bridge
- port_leave_bridge
- port_stp_update

DSA will resolve which switch ports that are currently bridge port
members as some Switch hardware/drivers need to know about that to limit
the register programming to just the relevant registers (especially for
slow MDIO buses).

We also take care of setting the correct STP state when slave network
devices are brought up/down while being bridge members.

Finally, when a port is leaving the bridge, we make sure we set in
BR_STATE_FORWARDING state, otherwise the bridge layer would leave it
disabled as a result of having left the bridge.

Signed-off-by: Florian Fainelli 
Reviewed-by: Guenter Roeck 
Tested-by: Guenter Roeck 
Signed-off-by: David S. Miller