Commit ebb1bb40 authored by Horatiu Vultur's avatar Horatiu Vultur Committed by David S. Miller
Browse files

net: ocelot: Add PGID_BLACKHOLE 



Add a new PGID that is used not to forward frames anywhere. It is used
by MRP to make sure that MRP Test frames will not reach CPU port.

Signed-off-by: default avatarHoratiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0d405970

drivers/net/ethernet/mscc/ocelot.c

+3 −0
Original line number Diff line number Diff line
@@ -2051,6 +2051,9 @@ int ocelot_init(struct ocelot *ocelot) 


		ocelot_write_rix(ocelot, val, ANA_PGID_PGID, i);

	}



	ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_BLACKHOLE);



	/* Allow broadcast and unknown L2 multicast to the CPU. */

	ocelot_rmw_rix(ocelot, ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),

		       ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),

include/soc/mscc/ocelot.h

+3 −1
Original line number Diff line number Diff line
@@ -51,6 +51,7 @@ 
 */



/* Reserve some destination PGIDs at the end of the range:

 * PGID_BLACKHOLE: used for not forwarding the frames

 * PGID_CPU: used for whitelisting certain MAC addresses, such as the addresses

 *           of the switch port net devices, towards the CPU port module.

 * PGID_UC: the flooding destinations for unknown unicast traffic.
@@ -59,6 +60,7 @@ 
 * PGID_MCIPV6: the flooding destinations for IPv6 multicast traffic.

 * PGID_BC: the flooding destinations for broadcast traffic.

 */

#define PGID_BLACKHOLE			57

#define PGID_CPU			58

#define PGID_UC				59

#define PGID_MC				60
@@ -73,7 +75,7 @@ 


#define for_each_nonreserved_multicast_dest_pgid(ocelot, pgid)	\

	for ((pgid) = (ocelot)->num_phys_ports + 1;		\

	     (pgid) < PGID_CPU;					\

	     (pgid) < PGID_BLACKHOLE;				\

	     (pgid)++)



#define for_each_aggr_pgid(ocelot, pgid)			\