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Commit 46a7054e authored by Yotam Gigi's avatar Yotam Gigi Committed by David S. Miller
Browse files

mlxsw: reg: Add The Router TCAM Allocation register 



This register is used for allocation of regions in the TCAM table and it
will be used by the multicast router offloading logic.

Signed-off-by: default avatarYotam Gigi <yotamg@mellanox.com>
Reviewed-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 58726565

drivers/net/ethernet/mellanox/mlxsw/reg.h

+52 −0
Original line number Diff line number Diff line
@@ -4310,6 +4310,57 @@ mlxsw_reg_ritr_loopback_ipip4_pack(char *payload, 
	mlxsw_reg_ritr_loopback_ipip_usip4_set(payload, usip);

}



/* RTAR - Router TCAM Allocation Register

 * --------------------------------------

 * This register is used for allocation of regions in the TCAM table.

 */

#define MLXSW_REG_RTAR_ID 0x8004

#define MLXSW_REG_RTAR_LEN 0x20



MLXSW_REG_DEFINE(rtar, MLXSW_REG_RTAR_ID, MLXSW_REG_RTAR_LEN);



enum mlxsw_reg_rtar_op {

	MLXSW_REG_RTAR_OP_ALLOCATE,

	MLXSW_REG_RTAR_OP_RESIZE,

	MLXSW_REG_RTAR_OP_DEALLOCATE,

};



/* reg_rtar_op

 * Access: WO

 */

MLXSW_ITEM32(reg, rtar, op, 0x00, 28, 4);



enum mlxsw_reg_rtar_key_type {

	MLXSW_REG_RTAR_KEY_TYPE_IPV4_MULTICAST = 1,

	MLXSW_REG_RTAR_KEY_TYPE_IPV6_MULTICAST = 3

};



/* reg_rtar_key_type

 * TCAM key type for the region.

 * Access: WO

 */

MLXSW_ITEM32(reg, rtar, key_type, 0x00, 0, 8);



/* reg_rtar_region_size

 * TCAM region size. When allocating/resizing this is the requested

 * size, the response is the actual size.

 * Note: Actual size may be larger than requested.

 * Reserved for op = Deallocate

 * Access: WO

 */

MLXSW_ITEM32(reg, rtar, region_size, 0x04, 0, 16);



static inline void mlxsw_reg_rtar_pack(char *payload,

				       enum mlxsw_reg_rtar_op op,

				       enum mlxsw_reg_rtar_key_type key_type,

				       u16 region_size)

{

	MLXSW_REG_ZERO(rtar, payload);

	mlxsw_reg_rtar_op_set(payload, op);

	mlxsw_reg_rtar_key_type_set(payload, key_type);

	mlxsw_reg_rtar_region_size_set(payload, region_size);

}



/* RATR - Router Adjacency Table Register

 * --------------------------------------

 * The RATR register is used to configure the Router Adjacency (next-hop)
@@ -6855,6 +6906,7 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = { 
	MLXSW_REG(hpkt),

	MLXSW_REG(rgcr),

	MLXSW_REG(ritr),

	MLXSW_REG(rtar),

	MLXSW_REG(ratr),

	MLXSW_REG(rtdp),

	MLXSW_REG(ricnt),