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A driver may refuse to enable VLAN filtering for any reason beyond what
the DSA framework cares about, such as:
- having tc-flower rules that rely on the switch being VLAN-aware
- the particular switch does not support VLAN, even if the driver does
(the DSA framework just checks for the presence of the .port_vlan_add
and .port_vlan_del pointers)
- simply not supporting this configuration to be toggled at runtime
Currently, when a driver rejects a configuration it cannot support, it
does this from the commit phase, which triggers various warnings in
switchdev.
So propagate the prepare phase to drivers, to give them the ability to
refuse invalid configurations cleanly and avoid the warnings.
Since we need to modify all function prototypes and check for the
prepare phase from within the drivers, take that opportunity and move
the existing driver restrictions within the prepare phase where that is
possible and easy.
Cc: Florian Fainelli <[email protected]>
Cc: Martin Blumenstingl <[email protected]>
Cc: Hauke Mehrtens <[email protected]>
Cc: Woojung Huh <[email protected]>
Cc: Microchip Linux Driver Support <[email protected]>
Cc: Sean Wang <[email protected]>
Cc: Landen Chao <[email protected]>
Cc: Andrew Lunn <[email protected]>
Cc: Vivien Didelot <[email protected]>
Cc: Jonathan McDowell <[email protected]>
Cc: Linus Walleij <[email protected]>
Cc: Alexandre Belloni <[email protected]>
Cc: Claudiu Manoil <[email protected]>
Signed-off-by: Vladimir Oltean <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Return the driver name and ASIC ID so that generic user space
application are able to know they're looking at sja1105 devlink regions
when pretty-printing them.
Signed-off-by: Vladimir Oltean <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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As explained in Documentation/networking/dsa/sja1105.rst, this switch
has a static config held in the driver's memory and re-uploaded from
time to time into the device (after any major change).
The format of this static config is in fact described in UM10944.pdf and
it contains all the switch's settings (it also contains device ID, table
CRCs, etc, just like in the manual). So it is a useful and universal
devlink region to expose to user space, for debugging purposes.
Signed-off-by: Vladimir Oltean <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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We'll have more devlink code soon. Group it together in a separate
translation object.
Signed-off-by: Vladimir Oltean <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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