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Commit 23019054 authored by Yotam Gigi's avatar Yotam Gigi Committed by David S. Miller
Browse files

mlxsw: reg: Add the Monitoring Port Analyzer register 



The MPAR register is used to bind ports to a SPAN entry (which was
created using MPAT register) and thus mirror their traffic (ingress /
egress) to a different port.

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 43a46856

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

+67 −0
Original line number Diff line number Diff line
@@ -4675,6 +4675,16 @@ MLXSW_ITEM32(reg, mpat, e, 0x04, 31, 1); 
 */

MLXSW_ITEM32(reg, mpat, qos, 0x04, 26, 1);



/* reg_mpat_be

 * Best effort mode. Indicates mirroring traffic should not cause packet

 * drop or back pressure, but will discard the mirrored packets. Mirrored

 * packets will be forwarded on a best effort manner.

 * 0: Do not discard mirrored packets

 * 1: Discard mirrored packets if causing congestion

 * Access: RW

 */

MLXSW_ITEM32(reg, mpat, be, 0x04, 25, 1);



static inline void mlxsw_reg_mpat_pack(char *payload, u8 pa_id,

				       u16 system_port, bool e)

{
@@ -4683,6 +4693,61 @@ static inline void mlxsw_reg_mpat_pack(char *payload, u8 pa_id, 
	mlxsw_reg_mpat_system_port_set(payload, system_port);

	mlxsw_reg_mpat_e_set(payload, e);

	mlxsw_reg_mpat_qos_set(payload, 1);

	mlxsw_reg_mpat_be_set(payload, 1);

}



/* MPAR - Monitoring Port Analyzer Register

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

 * MPAR register is used to query and configure the port analyzer port mirroring

 * properties.

 */

#define MLXSW_REG_MPAR_ID 0x901B

#define MLXSW_REG_MPAR_LEN 0x08



static const struct mlxsw_reg_info mlxsw_reg_mpar = {

	.id = MLXSW_REG_MPAR_ID,

	.len = MLXSW_REG_MPAR_LEN,

};



/* reg_mpar_local_port

 * The local port to mirror the packets from.

 * Access: Index

 */

MLXSW_ITEM32(reg, mpar, local_port, 0x00, 16, 8);



enum mlxsw_reg_mpar_i_e {

	MLXSW_REG_MPAR_TYPE_EGRESS,

	MLXSW_REG_MPAR_TYPE_INGRESS,

};



/* reg_mpar_i_e

 * Ingress/Egress

 * Access: Index

 */

MLXSW_ITEM32(reg, mpar, i_e, 0x00, 0, 4);



/* reg_mpar_enable

 * Enable mirroring

 * By default, port mirroring is disabled for all ports.

 * Access: RW

 */

MLXSW_ITEM32(reg, mpar, enable, 0x04, 31, 1);



/* reg_mpar_pa_id

 * Port Analyzer ID.

 * Access: RW

 */

MLXSW_ITEM32(reg, mpar, pa_id, 0x04, 0, 4);



static inline void mlxsw_reg_mpar_pack(char *payload, u8 local_port,

				       enum mlxsw_reg_mpar_i_e i_e,

				       bool enable, u8 pa_id)

{

	MLXSW_REG_ZERO(mpar, payload);

	mlxsw_reg_mpar_local_port_set(payload, local_port);

	mlxsw_reg_mpar_enable_set(payload, enable);

	mlxsw_reg_mpar_i_e_set(payload, i_e);

	mlxsw_reg_mpar_pa_id_set(payload, pa_id);

}



/* MLCR - Management LED Control Register
@@ -5258,6 +5323,8 @@ static inline const char *mlxsw_reg_id_str(u16 reg_id) 
		return "MTCAP";

	case MLXSW_REG_MPAT_ID:

		return "MPAT";

	case MLXSW_REG_MPAR_ID:

		return "MPAR";

	case MLXSW_REG_MTMP_ID:

		return "MTMP";

	case MLXSW_REG_MLCR_ID: