Commit 5246f2e2 authored by Jiri Pirko's avatar Jiri Pirko Committed by David S. Miller

mlxsw: reg: Add definition of fan management registers

Add definition of MFCR, MFSC and MFSM which provide possibility to
control and monitor fans.
Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 89309da3
......@@ -2087,6 +2087,133 @@ 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);
}
/* MFCR - Management Fan Control Register
* --------------------------------------
* This register controls the settings of the Fan Speed PWM mechanism.
*/
#define MLXSW_REG_MFCR_ID 0x9001
#define MLXSW_REG_MFCR_LEN 0x08
static const struct mlxsw_reg_info mlxsw_reg_mfcr = {
.id = MLXSW_REG_MFCR_ID,
.len = MLXSW_REG_MFCR_LEN,
};
enum mlxsw_reg_mfcr_pwm_frequency {
MLXSW_REG_MFCR_PWM_FEQ_11HZ = 0x00,
MLXSW_REG_MFCR_PWM_FEQ_14_7HZ = 0x01,
MLXSW_REG_MFCR_PWM_FEQ_22_1HZ = 0x02,
MLXSW_REG_MFCR_PWM_FEQ_1_4KHZ = 0x40,
MLXSW_REG_MFCR_PWM_FEQ_5KHZ = 0x41,
MLXSW_REG_MFCR_PWM_FEQ_20KHZ = 0x42,
MLXSW_REG_MFCR_PWM_FEQ_22_5KHZ = 0x43,
MLXSW_REG_MFCR_PWM_FEQ_25KHZ = 0x44,
};
/* reg_mfcr_pwm_frequency
* Controls the frequency of the PWM signal.
* Access: RW
*/
MLXSW_ITEM32(reg, mfcr, pwm_frequency, 0x00, 0, 6);
#define MLXSW_MFCR_TACHOS_MAX 10
/* reg_mfcr_tacho_active
* Indicates which of the tachometer is active (bit per tachometer).
* Access: RO
*/
MLXSW_ITEM32(reg, mfcr, tacho_active, 0x04, 16, MLXSW_MFCR_TACHOS_MAX);
#define MLXSW_MFCR_PWMS_MAX 5
/* reg_mfcr_pwm_active
* Indicates which of the PWM control is active (bit per PWM).
* Access: RO
*/
MLXSW_ITEM32(reg, mfcr, pwm_active, 0x04, 0, MLXSW_MFCR_PWMS_MAX);
static inline void
mlxsw_reg_mfcr_pack(char *payload,
enum mlxsw_reg_mfcr_pwm_frequency pwm_frequency)
{
MLXSW_REG_ZERO(mfcr, payload);
mlxsw_reg_mfcr_pwm_frequency_set(payload, pwm_frequency);
}
static inline void
mlxsw_reg_mfcr_unpack(char *payload,
enum mlxsw_reg_mfcr_pwm_frequency *p_pwm_frequency,
u16 *p_tacho_active, u8 *p_pwm_active)
{
*p_pwm_frequency = mlxsw_reg_mfcr_pwm_frequency_get(payload);
*p_tacho_active = mlxsw_reg_mfcr_tacho_active_get(payload);
*p_pwm_active = mlxsw_reg_mfcr_pwm_active_get(payload);
}
/* MFSC - Management Fan Speed Control Register
* --------------------------------------------
* This register controls the settings of the Fan Speed PWM mechanism.
*/
#define MLXSW_REG_MFSC_ID 0x9002
#define MLXSW_REG_MFSC_LEN 0x08
static const struct mlxsw_reg_info mlxsw_reg_mfsc = {
.id = MLXSW_REG_MFSC_ID,
.len = MLXSW_REG_MFSC_LEN,
};
/* reg_mfsc_pwm
* Fan pwm to control / monitor.
* Access: Index
*/
MLXSW_ITEM32(reg, mfsc, pwm, 0x00, 24, 3);
/* reg_mfsc_pwm_duty_cycle
* Controls the duty cycle of the PWM. Value range from 0..255 to
* represent duty cycle of 0%...100%.
* Access: RW
*/
MLXSW_ITEM32(reg, mfsc, pwm_duty_cycle, 0x04, 0, 8);
static inline void mlxsw_reg_mfsc_pack(char *payload, u8 pwm,
u8 pwm_duty_cycle)
{
MLXSW_REG_ZERO(mfsc, payload);
mlxsw_reg_mfsc_pwm_set(payload, pwm);
mlxsw_reg_mfsc_pwm_duty_cycle_set(payload, pwm_duty_cycle);
}
/* MFSM - Management Fan Speed Measurement
* ---------------------------------------
* This register controls the settings of the Tacho measurements and
* enables reading the Tachometer measurements.
*/
#define MLXSW_REG_MFSM_ID 0x9003
#define MLXSW_REG_MFSM_LEN 0x08
static const struct mlxsw_reg_info mlxsw_reg_mfsm = {
.id = MLXSW_REG_MFSM_ID,
.len = MLXSW_REG_MFSM_LEN,
};
/* reg_mfsm_tacho
* Fan tachometer index.
* Access: Index
*/
MLXSW_ITEM32(reg, mfsm, tacho, 0x00, 24, 4);
/* reg_mfsm_rpm
* Fan speed (round per minute).
* Access: RO
*/
MLXSW_ITEM32(reg, mfsm, rpm, 0x04, 0, 16);
static inline void mlxsw_reg_mfsm_pack(char *payload, u8 tacho)
{
MLXSW_REG_ZERO(mfsm, payload);
mlxsw_reg_mfsm_tacho_set(payload, tacho);
}
/* MTCAP - Management Temperature Capabilities
* -------------------------------------------
* This register exposes the capabilities of the device and
......@@ -2556,6 +2683,12 @@ static inline const char *mlxsw_reg_id_str(u16 reg_id)
return "HTGT";
case MLXSW_REG_HPKT_ID:
return "HPKT";
case MLXSW_REG_MFCR_ID:
return "MFCR";
case MLXSW_REG_MFSC_ID:
return "MFSC";
case MLXSW_REG_MFSM_ID:
return "MFSM";
case MLXSW_REG_MTCAP_ID:
return "MTCAP";
case MLXSW_REG_MTMP_ID:
......
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