be2net: Export board temperature using hwmon-sysfs interface.
Ethtool statistics is not the right place to display board temperature.
This patch adds support to export die temperature of devices supported
by be2net driver via the sysfs hwmon interface.
Signed-off-by: Venkat Duvvuru <VenkatKumar.Duvvuru@Emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index f15a3cf..b4cea55 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -5470,6 +5470,30 @@
free_netdev(adapter->netdev);
}
+ssize_t be_hwmon_show_temp(struct device *dev,
+ struct device_attribute *dev_attr,
+ char *buf)
+{
+ struct be_adapter *adapter = dev_get_drvdata(dev);
+
+ /* Unit: millidegree Celsius */
+ if (adapter->hwmon_info.be_on_die_temp == BE_INVALID_DIE_TEMP)
+ return -EIO;
+ else
+ return sprintf(buf, "%u\n",
+ adapter->hwmon_info.be_on_die_temp * 1000);
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO,
+ be_hwmon_show_temp, NULL, 1);
+
+static struct attribute *be_hwmon_attrs[] = {
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ NULL
+};
+
+ATTRIBUTE_GROUPS(be_hwmon);
+
static char *mc_name(struct be_adapter *adapter)
{
char *str = ""; /* default */
@@ -5589,6 +5613,16 @@
be_schedule_err_detection(adapter);
+ /* On Die temperature not supported for VF. */
+ if (be_physfn(adapter)) {
+ adapter->hwmon_info.hwmon_dev =
+ devm_hwmon_device_register_with_groups(&pdev->dev,
+ DRV_NAME,
+ adapter,
+ be_hwmon_groups);
+ adapter->hwmon_info.be_on_die_temp = BE_INVALID_DIE_TEMP;
+ }
+
dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
func_name(adapter), mc_name(adapter), adapter->port_name);