+++ /dev/null
-/*******************************************************************************
-
- Intel(R) Gigabit Ethernet Linux driver
- Copyright(c) 2007-2013 Intel Corporation.
-
- This program is free software; you can redistribute it and/or modify it
- under the terms and conditions of the GNU General Public License,
- version 2, as published by the Free Software Foundation.
-
- This program is distributed in the hope it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- more details.
-
- You should have received a copy of the GNU General Public License along with
- this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-
- The full GNU General Public License is included in this distribution in
- the file called "COPYING".
-
- Contact Information:
- e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
- Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
-
-*******************************************************************************/
-
-#include "igb.h"
-#include "e1000_82575.h"
-#include "e1000_hw.h"
-#ifdef IGB_HWMON
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/sysfs.h>
-#include <linux/kobject.h>
-#include <linux/device.h>
-#include <linux/netdevice.h>
-#include <linux/hwmon.h>
-#include <linux/pci.h>
-
-#ifdef HAVE_I2C_SUPPORT
-static struct i2c_board_info i350_sensor_info = {
- I2C_BOARD_INFO("i350bb", (0Xf8 >> 1)),
-};
-#endif /* HAVE_I2C_SUPPORT */
-
-/* hwmon callback functions */
-static ssize_t igb_hwmon_show_location(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct hwmon_attr *igb_attr = container_of(attr, struct hwmon_attr,
- dev_attr);
- return sprintf(buf, "loc%u\n",
- igb_attr->sensor->location);
-}
-
-static ssize_t igb_hwmon_show_temp(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct hwmon_attr *igb_attr = container_of(attr, struct hwmon_attr,
- dev_attr);
- unsigned int value;
-
- /* reset the temp field */
- igb_attr->hw->mac.ops.get_thermal_sensor_data(igb_attr->hw);
-
- value = igb_attr->sensor->temp;
-
- /* display millidegree */
- value *= 1000;
-
- return sprintf(buf, "%u\n", value);
-}
-
-static ssize_t igb_hwmon_show_cautionthresh(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct hwmon_attr *igb_attr = container_of(attr, struct hwmon_attr,
- dev_attr);
- unsigned int value = igb_attr->sensor->caution_thresh;
-
- /* display millidegree */
- value *= 1000;
-
- return sprintf(buf, "%u\n", value);
-}
-
-static ssize_t igb_hwmon_show_maxopthresh(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct hwmon_attr *igb_attr = container_of(attr, struct hwmon_attr,
- dev_attr);
- unsigned int value = igb_attr->sensor->max_op_thresh;
-
- /* display millidegree */
- value *= 1000;
-
- return sprintf(buf, "%u\n", value);
-}
-
-/* igb_add_hwmon_attr - Create hwmon attr table for a hwmon sysfs file.
- * @ adapter: pointer to the adapter structure
- * @ offset: offset in the eeprom sensor data table
- * @ type: type of sensor data to display
- *
- * For each file we want in hwmon's sysfs interface we need a device_attribute
- * This is included in our hwmon_attr struct that contains the references to
- * the data structures we need to get the data to display.
- */
-static int igb_add_hwmon_attr(struct igb_adapter *adapter,
- unsigned int offset, int type) {
- int rc;
- unsigned int n_attr;
- struct hwmon_attr *igb_attr;
-
- n_attr = adapter->igb_hwmon_buff.n_hwmon;
- igb_attr = &adapter->igb_hwmon_buff.hwmon_list[n_attr];
-
- switch (type) {
- case IGB_HWMON_TYPE_LOC:
- igb_attr->dev_attr.show = igb_hwmon_show_location;
- snprintf(igb_attr->name, sizeof(igb_attr->name),
- "temp%u_label", offset);
- break;
- case IGB_HWMON_TYPE_TEMP:
- igb_attr->dev_attr.show = igb_hwmon_show_temp;
- snprintf(igb_attr->name, sizeof(igb_attr->name),
- "temp%u_input", offset);
- break;
- case IGB_HWMON_TYPE_CAUTION:
- igb_attr->dev_attr.show = igb_hwmon_show_cautionthresh;
- snprintf(igb_attr->name, sizeof(igb_attr->name),
- "temp%u_max", offset);
- break;
- case IGB_HWMON_TYPE_MAX:
- igb_attr->dev_attr.show = igb_hwmon_show_maxopthresh;
- snprintf(igb_attr->name, sizeof(igb_attr->name),
- "temp%u_crit", offset);
- break;
- default:
- rc = -EPERM;
- return rc;
- }
-
- /* These always the same regardless of type */
- igb_attr->sensor =
- &adapter->hw.mac.thermal_sensor_data.sensor[offset];
- igb_attr->hw = &adapter->hw;
- igb_attr->dev_attr.store = NULL;
- igb_attr->dev_attr.attr.mode = S_IRUGO;
- igb_attr->dev_attr.attr.name = igb_attr->name;
- sysfs_attr_init(&igb_attr->dev_attr.attr);
- rc = device_create_file(&adapter->pdev->dev,
- &igb_attr->dev_attr);
- if (rc == 0)
- ++adapter->igb_hwmon_buff.n_hwmon;
-
- return rc;
-}
-
-static void igb_sysfs_del_adapter(struct igb_adapter *adapter)
-{
- int i;
-
- if (adapter == NULL)
- return;
-
- for (i = 0; i < adapter->igb_hwmon_buff.n_hwmon; i++) {
- device_remove_file(&adapter->pdev->dev,
- &adapter->igb_hwmon_buff.hwmon_list[i].dev_attr);
- }
-
- kfree(adapter->igb_hwmon_buff.hwmon_list);
-
- if (adapter->igb_hwmon_buff.device)
- hwmon_device_unregister(adapter->igb_hwmon_buff.device);
-}
-
-/* called from igb_main.c */
-void igb_sysfs_exit(struct igb_adapter *adapter)
-{
- igb_sysfs_del_adapter(adapter);
-}
-
-/* called from igb_main.c */
-int igb_sysfs_init(struct igb_adapter *adapter)
-{
- struct hwmon_buff *igb_hwmon = &adapter->igb_hwmon_buff;
- unsigned int i;
- int n_attrs;
- int rc = 0;
-#ifdef HAVE_I2C_SUPPORT
- struct i2c_client *client = NULL;
-#endif /* HAVE_I2C_SUPPORT */
-
- /* If this method isn't defined we don't support thermals */
- if (adapter->hw.mac.ops.init_thermal_sensor_thresh == NULL)
- goto exit;
-
- /* Don't create thermal hwmon interface if no sensors present */
- rc = (adapter->hw.mac.ops.init_thermal_sensor_thresh(&adapter->hw));
- if (rc)
- goto exit;
-#ifdef HAVE_I2C_SUPPORT
- /* init i2c_client */
- client = i2c_new_device(&adapter->i2c_adap, &i350_sensor_info);
- if (client == NULL) {
- dev_info(&adapter->pdev->dev,
- "Failed to create new i2c device..\n");
- goto exit;
- }
- adapter->i2c_client = client;
-#endif /* HAVE_I2C_SUPPORT */
-
- /* Allocation space for max attributes
- * max num sensors * values (loc, temp, max, caution)
- */
- n_attrs = E1000_MAX_SENSORS * 4;
- igb_hwmon->hwmon_list = kcalloc(n_attrs, sizeof(struct hwmon_attr),
- GFP_KERNEL);
- if (!igb_hwmon->hwmon_list) {
- rc = -ENOMEM;
- goto err;
- }
-
- igb_hwmon->device = hwmon_device_register(&adapter->pdev->dev);
- if (IS_ERR(igb_hwmon->device)) {
- rc = PTR_ERR(igb_hwmon->device);
- goto err;
- }
-
- for (i = 0; i < E1000_MAX_SENSORS; i++) {
-
- /* Only create hwmon sysfs entries for sensors that have
- * meaningful data.
- */
- if (adapter->hw.mac.thermal_sensor_data.sensor[i].location == 0)
- continue;
-
- /* Bail if any hwmon attr struct fails to initialize */
- rc = igb_add_hwmon_attr(adapter, i, IGB_HWMON_TYPE_CAUTION);
- rc |= igb_add_hwmon_attr(adapter, i, IGB_HWMON_TYPE_LOC);
- rc |= igb_add_hwmon_attr(adapter, i, IGB_HWMON_TYPE_TEMP);
- rc |= igb_add_hwmon_attr(adapter, i, IGB_HWMON_TYPE_MAX);
- if (rc)
- goto err;
- }
-
- goto exit;
-
-err:
- igb_sysfs_del_adapter(adapter);
-exit:
- return rc;
-}
-#endif /* IGB_HWMON */
Code Review / deb_dpdk.git / blobdiff