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Vivien Didelot 64dba236a1 net: dsa: support cross-chip ageing time
Now that the switchdev bridge ageing time attribute is propagated to all
switch chips of the fabric, each switch can check if the requested value
is valid and program itself, so that the whole fabric shares a common
ageing time setting.

This is especially needed for switch chips in between others, containing
no bridge port members but evidently used in the data path.

To achieve that, remove the condition which skips the other switches. We
also don't need to identify the target switch anymore, thus remove the
sw_index member of the dsa_notifier_ageing_time_info notifier structure.

On ZII Dev Rev B (with two 88E6352 and one 88E6185) and ZII Dev Rev C
(with two 88E6390X), we have the following hardware configuration:

    # ip link add name br0 type bridge
    # ip link set master br0 dev lan6
    br0: port 1(lan6) entered blocking state
    br0: port 1(lan6) entered disabled state
    # echo 2000 > /sys/class/net/br0/bridge/ageing_time

Before this patch:

    zii-rev-b# cat /sys/kernel/debug/mv88e6xxx/sw*/age_time
    300000
    300000
    15000

    zii-rev-c# cat /sys/kernel/debug/mv88e6xxx/sw*/age_time
    300000
    18750

After this patch:

    zii-rev-b# cat /sys/kernel/debug/mv88e6xxx/sw*/age_time
    15000
    15000
    15000

    zii-rev-c# cat /sys/kernel/debug/mv88e6xxx/sw*/age_time
    18750
    18750

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>
2017-05-24 16:27:47 -04:00
Vivien Didelot d0c627b874 net: dsa: add VLAN notifier
Add two new DSA_NOTIFIER_VLAN_ADD and DSA_NOTIFIER_VLAN_DEL events to
notify not only a single switch, but all switches of a the fabric when
an VLAN entry is added or removed.

For the moment, keep the current behavior and ignore other switches.

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>
2017-05-22 19:37:32 -04:00
Vivien Didelot 8ae5bcdc5d net: dsa: add MDB notifier
Add two new DSA_NOTIFIER_MDB_ADD and DSA_NOTIFIER_MDB_DEL events to
notify not only a single switch, but all switches of a the fabric when
an MDB entry is added or removed.

For the moment, keep the current behavior and ignore other switches.

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>
2017-05-22 19:37:32 -04:00
Vivien Didelot 685fb6a40d net: dsa: add FDB notifier
Add two new DSA_NOTIFIER_FDB_ADD and DSA_NOTIFIER_FDB_DEL events to
notify not only a single switch, but all switches of a the fabric when
an FDB entry is added or removed.

For the moment, keep the current behavior and ignore other switches.

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>
2017-05-22 19:37:32 -04:00
Vivien Didelot 1faabf7440 net: dsa: add notifier for ageing time
This patch keeps the port-wide ageing time handling code in
dsa_port_ageing_time, pushes the requested ageing time value in a new
switch fabric notification, and moves the switch-wide ageing time
handling code in dsa_switch_ageing_time.

This has the effect that now not only the switch that the target port
belongs to can be programmed, but all switches composing the switch
fabric. For the moment, keep the current behavior and ignore other
switches.

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>
2017-05-22 19:37:32 -04:00
Vivien Didelot 076e713365 net: dsa: move VLAN handlers
Move the DSA port code which handles VLAN objects in port.c, where it
belongs.

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>
2017-05-22 19:37:32 -04:00
Vivien Didelot 3a9afea37e net: dsa: move MDB handlers
Move the DSA port code which handles MDB objects in port.c, where it
belongs.

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>
2017-05-22 19:37:32 -04:00
Vivien Didelot d1cffff008 net: dsa: move FDB handlers
Move the DSA port code which handles FDB objects in port.c, where it
belongs.

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>
2017-05-22 19:37:32 -04:00
Vivien Didelot d87bd94e1c net: dsa: move ageing time setter
Move the DSA port code which sets a port ageing time in port.c, where it
belongs.

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>
2017-05-22 19:37:32 -04:00
Vivien Didelot 4d61d3043b net: dsa: move VLAN filtering setter
Move the DSA port code which sets VLAN filtering on a port in port.c,
where it belongs.

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>
2017-05-22 19:37:32 -04:00
Vivien Didelot cfbed329be net: dsa: move bridging routines
Move the DSA port code which bridges a port in port.c, where it belongs.

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>
2017-05-22 19:37:32 -04:00
Vivien Didelot a40c175b4a net: dsa: move port state setters
Add a new port.c file to hold all DSA port-wide logic. This patch moves
in the code which sets a port state.

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>
2017-05-22 19:37:32 -04:00