Commit a75e41d3 authored by Nir Dotan's avatar Nir Dotan Committed by David S. Miller
Browse files

mlxsw: reg: Add Policy Engine Multicast Router Binding Table Register 



In Spectrum-2, multicast routing is implemented explicitly using policy
engine (ACL) block. PEMRBT register is used to bind a dedicated ACL group
to a specific IP protocol.
Add the register to be later used in multicast router implementation.

Signed-off-by: default avatarNir Dotan <nird@mellanox.com>
Reviewed-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e1a76515

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

+38 −0
Original line number Diff line number Diff line
@@ -2495,6 +2495,43 @@ static inline void mlxsw_reg_pefa_unpack(char *payload, bool *p_a) 
	*p_a = mlxsw_reg_pefa_a_get(payload);

}



/* PEMRBT - Policy-Engine Multicast Router Binding Table Register

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

 * This register is used for binding Multicast router to an ACL group

 * that serves the MC router.

 * This register is not supported by SwitchX/-2 and Spectrum.

 */

#define MLXSW_REG_PEMRBT_ID 0x3014

#define MLXSW_REG_PEMRBT_LEN 0x14



MLXSW_REG_DEFINE(pemrbt, MLXSW_REG_PEMRBT_ID, MLXSW_REG_PEMRBT_LEN);



enum mlxsw_reg_pemrbt_protocol {

	MLXSW_REG_PEMRBT_PROTO_IPV4,

	MLXSW_REG_PEMRBT_PROTO_IPV6,

};



/* reg_pemrbt_protocol

 * Access: Index

 */

MLXSW_ITEM32(reg, pemrbt, protocol, 0x00, 0, 1);



/* reg_pemrbt_group_id

 * ACL group identifier.

 * Range 0..cap_max_acl_groups-1

 * Access: RW

 */

MLXSW_ITEM32(reg, pemrbt, group_id, 0x10, 0, 16);



static inline void

mlxsw_reg_pemrbt_pack(char *payload, enum mlxsw_reg_pemrbt_protocol protocol,

		      u16 group_id)

{

	MLXSW_REG_ZERO(pemrbt, payload);

	mlxsw_reg_pemrbt_protocol_set(payload, protocol);

	mlxsw_reg_pemrbt_group_id_set(payload, group_id);

}



/* PTCE-V2 - Policy-Engine TCAM Entry Register Version 2

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

 * This register is used for accessing rules within a TCAM region.
@@ -9568,6 +9605,7 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = { 
	MLXSW_REG(ppbs),

	MLXSW_REG(prcr),

	MLXSW_REG(pefa),

	MLXSW_REG(pemrbt),

	MLXSW_REG(ptce2),

	MLXSW_REG(perpt),

	MLXSW_REG(perar),

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