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mlxsw: core_hwmon: Adjust module label names based on MTCAP sensor counter

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Transceiver module temperature sensors are indexed after ASIC and
platform sensors. The current label printing method does not take this
into account and simply prints the index of the transceiver module
sensor.

On new systems that have platform sensors this results in incorrect
(shifted) transceiver module labels being printed:

$ sensors
[...]
front panel 002:  +37.0°C  (crit = +70.0°C, emerg = +75.0°C)
front panel 003:  +47.0°C  (crit = +70.0°C, emerg = +75.0°C)
[...]

Fix by taking the sensor count into account. After the fix:

$ sensors
[...]
front panel 001:  +37.0°C  (crit = +70.0°C, emerg = +75.0°C)
front panel 002:  +47.0°C  (crit = +70.0°C, emerg = +75.0°C)
[...]

Fixes: a53779de6a0e ("mlxsw: core: Add QSFP module temperature label attribute to hwmon")
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vadim Pasternak 2023-08-24 15:43:10 +02:00 committed by David S. Miller
parent d7248f1cc8
commit 3fc134a074
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/mellanox/mlxsw/core_hwmon.c
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@ -405,7 +405,8 @@ mlxsw_hwmon_module_temp_label_show(struct device *dev,
container_of(attr, struct mlxsw_hwmon_attr, dev_attr);
return sprintf(buf, "front panel %03u\n",
mlxsw_hwmon_attr->type_index);
mlxsw_hwmon_attr->type_index + 1 -
mlxsw_hwmon_attr->mlxsw_hwmon_dev->sensor_count);
}
static ssize_t