This is a note to let you know that I've just added the patch titled
thermal/drivers/mellanox: Use generic thermal_zone_get_trip() function
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
thermal-drivers-mellanox-use-generic-thermal_zone_ge.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 3bdce0db491613956d42d3d4076a7b5cbc9554e9
Author: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Date: Fri Oct 14 09:32:51 2022 +0200
thermal/drivers/mellanox: Use generic thermal_zone_get_trip() function
[ Upstream commit 44a29a4dab73411671e0b84817a5f07e291b1501 ]
The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.
Convert ops content logic into generic trip points and register them with the
thermal zone.
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Signed-off-by: Vadim Pasternak <vadimp@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20221014073253.3719911-2-daniel.lezcano@xxxxxxxxxx
Stable-dep-of: 6d206b1ea9f4 ("mlxsw: core_thermal: Fix fan speed in maximum cooling state")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
index 987fe5c9d5a36..c5240d38c9dbd 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
@@ -36,33 +36,39 @@ enum mlxsw_thermal_trips {
MLXSW_THERMAL_TEMP_TRIP_HOT,
};
-struct mlxsw_thermal_trip {
- int type;
- int temp;
- int hyst;
+struct mlxsw_cooling_states {
int min_state;
int max_state;
};
-static const struct mlxsw_thermal_trip default_thermal_trips[] = {
+static const struct thermal_trip default_thermal_trips[] = {
{ /* In range - 0-40% PWM */
.type = THERMAL_TRIP_ACTIVE,
- .temp = MLXSW_THERMAL_ASIC_TEMP_NORM,
- .hyst = MLXSW_THERMAL_HYSTERESIS_TEMP,
- .min_state = 0,
- .max_state = (4 * MLXSW_THERMAL_MAX_STATE) / 10,
+ .temperature = MLXSW_THERMAL_ASIC_TEMP_NORM,
+ .hysteresis = MLXSW_THERMAL_HYSTERESIS_TEMP,
},
{
/* In range - 40-100% PWM */
.type = THERMAL_TRIP_ACTIVE,
- .temp = MLXSW_THERMAL_ASIC_TEMP_HIGH,
- .hyst = MLXSW_THERMAL_HYSTERESIS_TEMP,
- .min_state = (4 * MLXSW_THERMAL_MAX_STATE) / 10,
- .max_state = MLXSW_THERMAL_MAX_STATE,
+ .temperature = MLXSW_THERMAL_ASIC_TEMP_HIGH,
+ .hysteresis = MLXSW_THERMAL_HYSTERESIS_TEMP,
},
{ /* Warning */
.type = THERMAL_TRIP_HOT,
- .temp = MLXSW_THERMAL_ASIC_TEMP_HOT,
+ .temperature = MLXSW_THERMAL_ASIC_TEMP_HOT,
+ },
+};
+
+static const struct mlxsw_cooling_states default_cooling_states[] = {
+ {
+ .min_state = 0,
+ .max_state = (4 * MLXSW_THERMAL_MAX_STATE) / 10,
+ },
+ {
+ .min_state = (4 * MLXSW_THERMAL_MAX_STATE) / 10,
+ .max_state = MLXSW_THERMAL_MAX_STATE,
+ },
+ {
.min_state = MLXSW_THERMAL_MAX_STATE,
.max_state = MLXSW_THERMAL_MAX_STATE,
},
@@ -78,7 +84,8 @@ struct mlxsw_thermal;
struct mlxsw_thermal_module {
struct mlxsw_thermal *parent;
struct thermal_zone_device *tzdev;
- struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
+ struct thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
+ struct mlxsw_cooling_states cooling_states[MLXSW_THERMAL_NUM_TRIPS];
int module; /* Module or gearbox number */
u8 slot_index;
};
@@ -99,7 +106,8 @@ struct mlxsw_thermal {
int polling_delay;
struct thermal_cooling_device *cdevs[MLXSW_MFCR_PWMS_MAX];
u8 cooling_levels[MLXSW_THERMAL_MAX_STATE + 1];
- struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
+ struct thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
+ struct mlxsw_cooling_states cooling_states[MLXSW_THERMAL_NUM_TRIPS];
struct mlxsw_thermal_area line_cards[];
};
@@ -136,9 +144,9 @@ static int mlxsw_get_cooling_device_idx(struct mlxsw_thermal *thermal,
static void
mlxsw_thermal_module_trips_reset(struct mlxsw_thermal_module *tz)
{
- tz->trips[MLXSW_THERMAL_TEMP_TRIP_NORM].temp = 0;
- tz->trips[MLXSW_THERMAL_TEMP_TRIP_HIGH].temp = 0;
- tz->trips[MLXSW_THERMAL_TEMP_TRIP_HOT].temp = 0;
+ tz->trips[MLXSW_THERMAL_TEMP_TRIP_NORM].temperature = 0;
+ tz->trips[MLXSW_THERMAL_TEMP_TRIP_HIGH].temperature = 0;
+ tz->trips[MLXSW_THERMAL_TEMP_TRIP_HOT].temperature = 0;
}
static int
@@ -180,12 +188,12 @@ mlxsw_thermal_module_trips_update(struct device *dev, struct mlxsw_core *core,
* by subtracting double hysteresis value.
*/
if (crit_temp >= MLXSW_THERMAL_MODULE_TEMP_SHIFT)
- tz->trips[MLXSW_THERMAL_TEMP_TRIP_NORM].temp = crit_temp -
+ tz->trips[MLXSW_THERMAL_TEMP_TRIP_NORM].temperature = crit_temp -
MLXSW_THERMAL_MODULE_TEMP_SHIFT;
else
- tz->trips[MLXSW_THERMAL_TEMP_TRIP_NORM].temp = crit_temp;
- tz->trips[MLXSW_THERMAL_TEMP_TRIP_HIGH].temp = crit_temp;
- tz->trips[MLXSW_THERMAL_TEMP_TRIP_HOT].temp = emerg_temp;
+ tz->trips[MLXSW_THERMAL_TEMP_TRIP_NORM].temperature = crit_temp;
+ tz->trips[MLXSW_THERMAL_TEMP_TRIP_HIGH].temperature = crit_temp;
+ tz->trips[MLXSW_THERMAL_TEMP_TRIP_HOT].temperature = emerg_temp;
return 0;
}
@@ -202,11 +210,11 @@ static int mlxsw_thermal_bind(struct thermal_zone_device *tzdev,
return 0;
for (i = 0; i < MLXSW_THERMAL_NUM_TRIPS; i++) {
- const struct mlxsw_thermal_trip *trip = &thermal->trips[i];
+ const struct mlxsw_cooling_states *state = &thermal->cooling_states[i];
err = thermal_zone_bind_cooling_device(tzdev, i, cdev,
- trip->max_state,
- trip->min_state,
+ state->max_state,
+ state->min_state,
THERMAL_WEIGHT_DEFAULT);
if (err < 0) {
dev_err(dev, "Failed to bind cooling device to trip %d\n", i);
@@ -260,61 +268,6 @@ static int mlxsw_thermal_get_temp(struct thermal_zone_device *tzdev,
return 0;
}
-static int mlxsw_thermal_get_trip_type(struct thermal_zone_device *tzdev,
- int trip,
- enum thermal_trip_type *p_type)
-{
- struct mlxsw_thermal *thermal = tzdev->devdata;
-
- if (trip < 0 || trip >= MLXSW_THERMAL_NUM_TRIPS)
- return -EINVAL;
-
- *p_type = thermal->trips[trip].type;
- return 0;
-}
-
-static int mlxsw_thermal_get_trip_temp(struct thermal_zone_device *tzdev,
- int trip, int *p_temp)
-{
- struct mlxsw_thermal *thermal = tzdev->devdata;
-
- if (trip < 0 || trip >= MLXSW_THERMAL_NUM_TRIPS)
- return -EINVAL;
-
- *p_temp = thermal->trips[trip].temp;
- return 0;
-}
-
-static int mlxsw_thermal_set_trip_temp(struct thermal_zone_device *tzdev,
- int trip, int temp)
-{
- struct mlxsw_thermal *thermal = tzdev->devdata;
-
- if (trip < 0 || trip >= MLXSW_THERMAL_NUM_TRIPS)
- return -EINVAL;
-
- thermal->trips[trip].temp = temp;
- return 0;
-}
-
-static int mlxsw_thermal_get_trip_hyst(struct thermal_zone_device *tzdev,
- int trip, int *p_hyst)
-{
- struct mlxsw_thermal *thermal = tzdev->devdata;
-
- *p_hyst = thermal->trips[trip].hyst;
- return 0;
-}
-
-static int mlxsw_thermal_set_trip_hyst(struct thermal_zone_device *tzdev,
- int trip, int hyst)
-{
- struct mlxsw_thermal *thermal = tzdev->devdata;
-
- thermal->trips[trip].hyst = hyst;
- return 0;
-}
-
static struct thermal_zone_params mlxsw_thermal_params = {
.no_hwmon = true,
};
@@ -323,11 +276,6 @@ static struct thermal_zone_device_ops mlxsw_thermal_ops = {
.bind = mlxsw_thermal_bind,
.unbind = mlxsw_thermal_unbind,
.get_temp = mlxsw_thermal_get_temp,
- .get_trip_type = mlxsw_thermal_get_trip_type,
- .get_trip_temp = mlxsw_thermal_get_trip_temp,
- .set_trip_temp = mlxsw_thermal_set_trip_temp,
- .get_trip_hyst = mlxsw_thermal_get_trip_hyst,
- .set_trip_hyst = mlxsw_thermal_set_trip_hyst,
};
static int mlxsw_thermal_module_bind(struct thermal_zone_device *tzdev,
@@ -342,11 +290,11 @@ static int mlxsw_thermal_module_bind(struct thermal_zone_device *tzdev,
return 0;
for (i = 0; i < MLXSW_THERMAL_NUM_TRIPS; i++) {
- const struct mlxsw_thermal_trip *trip = &tz->trips[i];
+ const struct mlxsw_cooling_states *state = &tz->cooling_states[i];
err = thermal_zone_bind_cooling_device(tzdev, i, cdev,
- trip->max_state,
- trip->min_state,
+ state->max_state,
+ state->min_state,
THERMAL_WEIGHT_DEFAULT);
if (err < 0)
goto err_thermal_zone_bind_cooling_device;
@@ -434,74 +382,10 @@ static int mlxsw_thermal_module_temp_get(struct thermal_zone_device *tzdev,
return 0;
}
-static int
-mlxsw_thermal_module_trip_type_get(struct thermal_zone_device *tzdev, int trip,
- enum thermal_trip_type *p_type)
-{
- struct mlxsw_thermal_module *tz = tzdev->devdata;
-
- if (trip < 0 || trip >= MLXSW_THERMAL_NUM_TRIPS)
- return -EINVAL;
-
- *p_type = tz->trips[trip].type;
- return 0;
-}
-
-static int
-mlxsw_thermal_module_trip_temp_get(struct thermal_zone_device *tzdev,
- int trip, int *p_temp)
-{
- struct mlxsw_thermal_module *tz = tzdev->devdata;
-
- if (trip < 0 || trip >= MLXSW_THERMAL_NUM_TRIPS)
- return -EINVAL;
-
- *p_temp = tz->trips[trip].temp;
- return 0;
-}
-
-static int
-mlxsw_thermal_module_trip_temp_set(struct thermal_zone_device *tzdev,
- int trip, int temp)
-{
- struct mlxsw_thermal_module *tz = tzdev->devdata;
-
- if (trip < 0 || trip >= MLXSW_THERMAL_NUM_TRIPS)
- return -EINVAL;
-
- tz->trips[trip].temp = temp;
- return 0;
-}
-
-static int
-mlxsw_thermal_module_trip_hyst_get(struct thermal_zone_device *tzdev, int trip,
- int *p_hyst)
-{
- struct mlxsw_thermal_module *tz = tzdev->devdata;
-
- *p_hyst = tz->trips[trip].hyst;
- return 0;
-}
-
-static int
-mlxsw_thermal_module_trip_hyst_set(struct thermal_zone_device *tzdev, int trip,
- int hyst)
-{
- struct mlxsw_thermal_module *tz = tzdev->devdata;
-
- tz->trips[trip].hyst = hyst;
- return 0;
-}
-
static struct thermal_zone_device_ops mlxsw_thermal_module_ops = {
.bind = mlxsw_thermal_module_bind,
.unbind = mlxsw_thermal_module_unbind,
.get_temp = mlxsw_thermal_module_temp_get,
- .get_trip_type = mlxsw_thermal_module_trip_type_get,
- .get_trip_temp = mlxsw_thermal_module_trip_temp_get,
- .set_trip_temp = mlxsw_thermal_module_trip_temp_set,
- .get_trip_hyst = mlxsw_thermal_module_trip_hyst_get,
- .set_trip_hyst = mlxsw_thermal_module_trip_hyst_set,
};
static int mlxsw_thermal_gearbox_temp_get(struct thermal_zone_device *tzdev,
@@ -531,11 +415,6 @@ static struct thermal_zone_device_ops mlxsw_thermal_gearbox_ops = {
.bind = mlxsw_thermal_module_bind,
.unbind = mlxsw_thermal_module_unbind,
.get_temp = mlxsw_thermal_gearbox_temp_get,
- .get_trip_type = mlxsw_thermal_module_trip_type_get,
- .get_trip_temp = mlxsw_thermal_module_trip_temp_get,
- .set_trip_temp = mlxsw_thermal_module_trip_temp_set,
- .get_trip_hyst = mlxsw_thermal_module_trip_hyst_get,
- .set_trip_hyst = mlxsw_thermal_module_trip_hyst_set,
};
static int mlxsw_thermal_get_max_state(struct thermal_cooling_device *cdev,
@@ -617,7 +496,8 @@ mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz)
else
snprintf(tz_name, sizeof(tz_name), "mlxsw-module%d",
module_tz->module + 1);
- module_tz->tzdev = thermal_zone_device_register(tz_name,
+ module_tz->tzdev = thermal_zone_device_register_with_trips(tz_name,
+ module_tz->trips,
MLXSW_THERMAL_NUM_TRIPS,
MLXSW_THERMAL_TRIP_MASK,
module_tz,
@@ -661,6 +541,8 @@ mlxsw_thermal_module_init(struct device *dev, struct mlxsw_core *core,
module_tz->parent = thermal;
memcpy(module_tz->trips, default_thermal_trips,
sizeof(thermal->trips));
+ memcpy(module_tz->cooling_states, default_cooling_states,
+ sizeof(thermal->cooling_states));
/* Initialize all trip point. */
mlxsw_thermal_module_trips_reset(module_tz);
/* Read module temperature and thresholds. */
@@ -756,7 +638,8 @@ mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz)
else
snprintf(tz_name, sizeof(tz_name), "mlxsw-gearbox%d",
gearbox_tz->module + 1);
- gearbox_tz->tzdev = thermal_zone_device_register(tz_name,
+ gearbox_tz->tzdev = thermal_zone_device_register_with_trips(tz_name,
+ gearbox_tz->trips,
MLXSW_THERMAL_NUM_TRIPS,
MLXSW_THERMAL_TRIP_MASK,
gearbox_tz,
@@ -813,6 +696,8 @@ mlxsw_thermal_gearboxes_init(struct device *dev, struct mlxsw_core *core,
gearbox_tz = &area->tz_gearbox_arr[i];
memcpy(gearbox_tz->trips, default_thermal_trips,
sizeof(thermal->trips));
+ memcpy(gearbox_tz->cooling_states, default_cooling_states,
+ sizeof(thermal->cooling_states));
gearbox_tz->module = i;
gearbox_tz->parent = thermal;
gearbox_tz->slot_index = area->slot_index;
@@ -928,6 +813,7 @@ int mlxsw_thermal_init(struct mlxsw_core *core,
thermal->core = core;
thermal->bus_info = bus_info;
memcpy(thermal->trips, default_thermal_trips, sizeof(thermal->trips));
+ memcpy(thermal->cooling_states, default_cooling_states, sizeof(thermal->cooling_states));
thermal->line_cards[0].slot_index = 0;
err = mlxsw_reg_query(thermal->core, MLXSW_REG(mfcr), mfcr_pl);
@@ -981,7 +867,8 @@ int mlxsw_thermal_init(struct mlxsw_core *core,
MLXSW_THERMAL_SLOW_POLL_INT :
MLXSW_THERMAL_POLL_INT;
- thermal->tzdev = thermal_zone_device_register("mlxsw",
+ thermal->tzdev = thermal_zone_device_register_with_trips("mlxsw",
+ thermal->trips,
MLXSW_THERMAL_NUM_TRIPS,
MLXSW_THERMAL_TRIP_MASK,
thermal,
