4 Commits

Author SHA1 Message Date
Horatiu Vultur
5b7c0c32c9 net: ocelot: Simplify MRP deletion
Now that the driver will always be notified that the role is deleted
before the ring is deleted, then we don't need to duplicate the logic of
cleaning the resources also in the delete function.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-24 12:14:08 -07:00
Horatiu Vultur
d25fde64d1 net: ocelot: Fix deletetion of MRP entries from MAC table
When a MRP ring was deleted or disabled, the driver was iterating over
the ports to detect if any other MPR rings exists and in case it didn't
exist it would delete the MAC table entry. But the problem was that it
used the last iterated port to delete the MAC table entry and this could
be a NULL port.

The fix consists of using the port on which the function was called.

Fixes: 7c588c3e96e9733a ("net: ocelot: Extend MRP")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-18 19:13:42 -07:00
Horatiu Vultur
7c588c3e96 net: ocelot: Extend MRP
This patch extends MRP support for Ocelot. It allows to have multiple
rings and when the node has the MRC role it forwards MRP Test frames in
HW. For MRM there is no change.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-16 15:49:52 -07:00
Horatiu Vultur
d8ea7ff399 net: mscc: ocelot: Add support for MRP
Add basic support for MRP. The HW will just trap all MRP frames on the
ring ports to CPU and allow the SW to process them. In this way it is
possible to for this node to behave both as MRM and MRC.

Current limitations are:
- it doesn't support Interconnect roles.
- it supports only a single ring.
- the HW should be able to do forwarding of MRP Test frames so the SW
  will not need to do this. So it would be able to have the role MRC
  without SW support.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-16 14:47:46 -08:00