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Commit 85926f87 authored by Jiri Pirko's avatar Jiri Pirko Committed by David S. Miller
Browse files

mlxsw: reg: Add definition of temperature management registers 



Add definition of MTCAP and MTMP registers which provide access to
temperature sensors.

Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3a66ee38

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

+111 −0
Original line number Diff line number Diff line
@@ -2087,6 +2087,113 @@ static inline void mlxsw_reg_hpkt_pack(char *payload, u8 action, u16 trap_id) 
	mlxsw_reg_hpkt_ctrl_set(payload, MLXSW_REG_HPKT_CTRL_PACKET_DEFAULT);

}



/* MTCAP - Management Temperature Capabilities

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

 * This register exposes the capabilities of the device and

 * system temperature sensing.

 */

#define MLXSW_REG_MTCAP_ID 0x9009

#define MLXSW_REG_MTCAP_LEN 0x08



static const struct mlxsw_reg_info mlxsw_reg_mtcap = {

	.id = MLXSW_REG_MTCAP_ID,

	.len = MLXSW_REG_MTCAP_LEN,

};



/* reg_mtcap_sensor_count

 * Number of sensors supported by the device.

 * This includes the QSFP module sensors (if exists in the QSFP module).

 * Access: RO

 */

MLXSW_ITEM32(reg, mtcap, sensor_count, 0x00, 0, 7);



/* MTMP - Management Temperature

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

 * This register controls the settings of the temperature measurements

 * and enables reading the temperature measurements. Note that temperature

 * is in 0.125 degrees Celsius.

 */

#define MLXSW_REG_MTMP_ID 0x900A

#define MLXSW_REG_MTMP_LEN 0x20



static const struct mlxsw_reg_info mlxsw_reg_mtmp = {

	.id = MLXSW_REG_MTMP_ID,

	.len = MLXSW_REG_MTMP_LEN,

};



/* reg_mtmp_sensor_index

 * Sensors index to access.

 * 64-127 of sensor_index are mapped to the SFP+/QSFP modules sequentially

 * (module 0 is mapped to sensor_index 64).

 * Access: Index

 */

MLXSW_ITEM32(reg, mtmp, sensor_index, 0x00, 0, 7);



/* Convert to milli degrees Celsius */

#define MLXSW_REG_MTMP_TEMP_TO_MC(val) (val * 125)



/* reg_mtmp_temperature

 * Temperature reading from the sensor. Reading is in 0.125 Celsius

 * degrees units.

 * Access: RO

 */

MLXSW_ITEM32(reg, mtmp, temperature, 0x04, 0, 16);



/* reg_mtmp_mte

 * Max Temperature Enable - enables measuring the max temperature on a sensor.

 * Access: RW

 */

MLXSW_ITEM32(reg, mtmp, mte, 0x08, 31, 1);



/* reg_mtmp_mtr

 * Max Temperature Reset - clears the value of the max temperature register.

 * Access: WO

 */

MLXSW_ITEM32(reg, mtmp, mtr, 0x08, 30, 1);



/* reg_mtmp_max_temperature

 * The highest measured temperature from the sensor.

 * When the bit mte is cleared, the field max_temperature is reserved.

 * Access: RO

 */

MLXSW_ITEM32(reg, mtmp, max_temperature, 0x08, 0, 16);



#define MLXSW_REG_MTMP_SENSOR_NAME_SIZE 8



/* reg_mtmp_sensor_name

 * Sensor Name

 * Access: RO

 */

MLXSW_ITEM_BUF(reg, mtmp, sensor_name, 0x18, MLXSW_REG_MTMP_SENSOR_NAME_SIZE);



static inline void mlxsw_reg_mtmp_pack(char *payload, u8 sensor_index,

				       bool max_temp_enable,

				       bool max_temp_reset)

{

	MLXSW_REG_ZERO(mtmp, payload);

	mlxsw_reg_mtmp_sensor_index_set(payload, sensor_index);

	mlxsw_reg_mtmp_mte_set(payload, max_temp_enable);

	mlxsw_reg_mtmp_mtr_set(payload, max_temp_reset);

}



static inline void mlxsw_reg_mtmp_unpack(char *payload, unsigned int *p_temp,

					 unsigned int *p_max_temp,

					 char *sensor_name)

{

	u16 temp;



	if (p_temp) {

		temp = mlxsw_reg_mtmp_temperature_get(payload);

		*p_temp = MLXSW_REG_MTMP_TEMP_TO_MC(temp);

	}

	if (p_max_temp) {

		temp = mlxsw_reg_mtmp_temperature_get(payload);

		*p_max_temp = MLXSW_REG_MTMP_TEMP_TO_MC(temp);

	}

	if (sensor_name)

		mlxsw_reg_mtmp_sensor_name_memcpy_from(payload, sensor_name);

}



/* MLCR - Management LED Control Register

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

 * Controls the system LEDs.
@@ -2449,6 +2556,10 @@ static inline const char *mlxsw_reg_id_str(u16 reg_id) 
		return "HTGT";

	case MLXSW_REG_HPKT_ID:

		return "HPKT";

	case MLXSW_REG_MTCAP_ID:

		return "MTCAP";

	case MLXSW_REG_MTMP_ID:

		return "MTMP";

	case MLXSW_REG_MLCR_ID:

		return "MLCR";

	case MLXSW_REG_SBPR_ID: