---
.../net/ethernet/mellanox/mlx5/core/Kconfig | 1 +
.../net/ethernet/mellanox/mlx5/core/Makefile | 2 +-
.../net/ethernet/mellanox/mlx5/core/hwmon.c | 418 ++++++++++++++++++
.../net/ethernet/mellanox/mlx5/core/hwmon.h | 24 +
.../net/ethernet/mellanox/mlx5/core/main.c | 8 +-
.../net/ethernet/mellanox/mlx5/core/thermal.c | 114 -----
.../net/ethernet/mellanox/mlx5/core/thermal.h | 20 -
include/linux/mlx5/driver.h | 3 +-
include/linux/mlx5/mlx5_ifc.h | 14 +-
9 files changed, 463 insertions(+), 141 deletions(-)
create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/hwmon.c
create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/hwmon.h
delete mode 100644 drivers/net/ethernet/mellanox/mlx5/core/thermal.c
delete mode 100644 drivers/net/ethernet/mellanox/mlx5/core/thermal.h
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Kconfig b/drivers/net/ethernet/mellanox/mlx5/core/Kconfig
index bb1d7b039a7e..d537d517cabe 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/Kconfig
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Kconfig
@@ -12,6 +12,7 @@ config MLX5_CORE
depends on MLXFW || !MLXFW
depends on PTP_1588_CLOCK_OPTIONAL
depends on PCI_HYPERV_INTERFACE || !PCI_HYPERV_INTERFACE
+ depends on HWMON || !HWMON
help
Core driver for low level functionality of the ConnectX-4 and
Connect-IB cards by Mellanox Technologies.
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
index 63a2f2bb80a6..946310390659 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/Makefile
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
@@ -82,7 +82,7 @@ endif
mlx5_core-$(CONFIG_MLX5_BRIDGE) += esw/bridge.o esw/bridge_mcast.o esw/bridge_debugfs.o \
en/rep/bridge.o
-mlx5_core-$(CONFIG_THERMAL) += thermal.o
+mlx5_core-$(CONFIG_HWMON) += hwmon.o
mlx5_core-$(CONFIG_MLX5_MPFS) += lib/mpfs.o
mlx5_core-$(CONFIG_VXLAN) += lib/vxlan.o
mlx5_core-$(CONFIG_PTP_1588_CLOCK) += lib/clock.o
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/hwmon.c b/drivers/net/ethernet/mellanox/mlx5/core/hwmon.c
new file mode 100644
index 000000000000..353f81dccd1c
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/hwmon.c
@@ -0,0 +1,418 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+// Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved
+
+#include <linux/hwmon.h>
+#include <linux/bitmap.h>
+#include <linux/mlx5/device.h>
+#include <linux/mlx5/mlx5_ifc.h>
+#include <linux/mlx5/port.h>
+#include "mlx5_core.h"
+#include "hwmon.h"
+
+#define CHANNELS_TYPE_NUM 2 /* chip channel and temp channel */
+#define CHIP_CONFIG_NUM 1
+
+/* module 0 is mapped to sensor_index 64 in MTMP register */
+#define to_mtmp_module_sensor_idx(idx) (64 + (idx))
+
+/* All temperatures retrieved in units of 0.125C. hwmon framework expect
+ * it in units of millidegrees C. Hence multiply values by 125.
+ */
+#define mtmp_temp_to_mdeg(temp) ((temp) * 125)
+
+struct temp_channel_desc {
+ u32 sensor_index;
+ char sensor_name[32];
+};
+
+/* chip_channel_config and channel_info arrays must be 0-terminated, hence + 1 */
+struct mlx5_hwmon {
+ struct mlx5_core_dev *mdev;
+ struct device *hwmon_dev;
+ struct hwmon_channel_info chip_info;
+ u32 chip_channel_config[CHIP_CONFIG_NUM + 1];
+ struct hwmon_channel_info temp_info;
+ u32 *temp_channel_config;
+ const struct hwmon_channel_info *channel_info[CHANNELS_TYPE_NUM + 1];
+ struct hwmon_chip_info chip;
+ struct temp_channel_desc *temp_channel_desc;
+ u32 asic_platform_scount;
+ u32 module_scount;
+};
+
+static int mlx5_hwmon_query_mtmp(struct mlx5_core_dev *mdev, u32 sensor_index, u32 *mtmp_out)
+{
+ u32 mtmp_in[MLX5_ST_SZ_DW(mtmp_reg)] = {};
+
+ MLX5_SET(mtmp_reg, mtmp_in, sensor_index, sensor_index);
+
+ return mlx5_core_access_reg(mdev, mtmp_in, sizeof(mtmp_in),
+ mtmp_out, MLX5_ST_SZ_BYTES(mtmp_reg),
+ MLX5_REG_MTMP, 0, 0);
+}
+
+static int mlx5_hwmon_reset_max_temp(struct mlx5_core_dev *mdev, int sensor_index)
+{
+ u32 mtmp_out[MLX5_ST_SZ_DW(mtmp_reg)] = {};
+ u32 mtmp_in[MLX5_ST_SZ_DW(mtmp_reg)] = {};
+
+ MLX5_SET(mtmp_reg, mtmp_in, sensor_index, sensor_index);
+ MLX5_SET(mtmp_reg, mtmp_in, mtr, 1);
+
+ return mlx5_core_access_reg(mdev, mtmp_in, sizeof(mtmp_in),
+ mtmp_out, sizeof(mtmp_out),
+ MLX5_REG_MTMP, 0, 0);
+}
+
+static int mlx5_hwmon_enable_max_temp(struct mlx5_core_dev *mdev, int sensor_index)
+{
+ u32 mtmp_out[MLX5_ST_SZ_DW(mtmp_reg)] = {};
+ u32 mtmp_in[MLX5_ST_SZ_DW(mtmp_reg)] = {};
+ int err;
+
+ err = mlx5_hwmon_query_mtmp(mdev, sensor_index, mtmp_in);
+ if (err)
+ return err;
+
+ MLX5_SET(mtmp_reg, mtmp_in, mte, 1);
+ return mlx5_core_access_reg(mdev, mtmp_in, sizeof(mtmp_in),
+ mtmp_out, sizeof(mtmp_out),
+ MLX5_REG_MTMP, 0, 1);
+}
+
+static int mlx5_hwmon_read(struct device *dev, enum hwmon_sensor_types type, u32 attr,
+ int channel, long *val)
+{
+ struct mlx5_hwmon *hwmon = dev_get_drvdata(dev);
+ u32 mtmp_out[MLX5_ST_SZ_DW(mtmp_reg)] = {};
+ int err;
+
+ if (type != hwmon_temp)
+ return -EOPNOTSUPP;
+
+ err = mlx5_hwmon_query_mtmp(hwmon->mdev, hwmon->temp_channel_desc[channel].sensor_index,
+ mtmp_out);
+ if (err)
+ return err;
+
+ switch (attr) {
+ case hwmon_temp_input:
+ *val = mtmp_temp_to_mdeg(MLX5_GET(mtmp_reg, mtmp_out, temperature));
+ return 0;
+ case hwmon_temp_highest:
+ *val = mtmp_temp_to_mdeg(MLX5_GET(mtmp_reg, mtmp_out, max_temperature));
+ return 0;
+ case hwmon_temp_crit:
+ *val = mtmp_temp_to_mdeg(MLX5_GET(mtmp_reg, mtmp_out, temp_threshold_hi));
+ return 0;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int mlx5_hwmon_write(struct device *dev, enum hwmon_sensor_types type, u32 attr,
+ int channel, long val)
+{
+ struct mlx5_hwmon *hwmon = dev_get_drvdata(dev);
+
+ if (type != hwmon_temp || attr != hwmon_temp_reset_history)
+ return -EOPNOTSUPP;
+
+ return mlx5_hwmon_reset_max_temp(hwmon->mdev,
+ hwmon->temp_channel_desc[channel].sensor_index);
+}
+
+static umode_t mlx5_hwmon_is_visible(const void *data, enum hwmon_sensor_types type, u32 attr,
+ int channel)
+{
+ if (type != hwmon_temp)
+ return 0;
+
+ switch (attr) {
+ case hwmon_temp_input:
+ case hwmon_temp_highest:
+ case hwmon_temp_crit:
+ case hwmon_temp_label:
+ return 0444;
+ case hwmon_temp_reset_history:
+ return 0200;
+ default:
+ return 0;
+ }
+}
+
+static int mlx5_hwmon_read_string(struct device *dev, enum hwmon_sensor_types type, u32 attr,
+ int channel, const char **str)
+{
+ struct mlx5_hwmon *hwmon = dev_get_drvdata(dev);
+
+ if (type != hwmon_temp || attr != hwmon_temp_label)
+ return -EOPNOTSUPP;
+
+ *str = (const char *)hwmon->temp_channel_desc[channel].sensor_name;
+ return 0;
+}
+
+static const struct hwmon_ops mlx5_hwmon_ops = {
+ .read = mlx5_hwmon_read,
+ .read_string = mlx5_hwmon_read_string,
+ .is_visible = mlx5_hwmon_is_visible,
+ .write = mlx5_hwmon_write,
+};
+
+static int mlx5_hwmon_init_channels_names(struct mlx5_hwmon *hwmon)
+{
+ u32 i;
+
+ for (i = 0; i < hwmon->asic_platform_scount + hwmon->module_scount; i++) {
+ u32 mtmp_out[MLX5_ST_SZ_DW(mtmp_reg)] = {};
+ char *sensor_name;
+ int err;
+
+ err = mlx5_hwmon_query_mtmp(hwmon->mdev, hwmon->temp_channel_desc[i].sensor_index,
+ mtmp_out);
+ if (err)
+ return err;
+
+ sensor_name = MLX5_ADDR_OF(mtmp_reg, mtmp_out, sensor_name_hi);
+ if (!*sensor_name) {
+ snprintf(hwmon->temp_channel_desc[i].sensor_name,
+ sizeof(hwmon->temp_channel_desc[i].sensor_name), "sensor%u",
+ hwmon->temp_channel_desc[i].sensor_index);
+ continue;
+ }
+
+ memcpy(&hwmon->temp_channel_desc[i].sensor_name, sensor_name,
+ MLX5_FLD_SZ_BYTES(mtmp_reg, sensor_name_hi) +
+ MLX5_FLD_SZ_BYTES(mtmp_reg, sensor_name_lo));
+ }
+
+ return 0;
+}
+
+static int mlx5_hwmon_get_module_sensor_index(struct mlx5_core_dev *mdev, u32 *module_index)
+{
+ int module_num;
+ int err;
+
+ err = mlx5_query_module_num(mdev, &module_num);
+ if (err)
+ return err;
+
+ *module_index = to_mtmp_module_sensor_idx(module_num);
+
+ return 0;
+}
+
+static int mlx5_hwmon_init_sensors_indexes(struct mlx5_hwmon *hwmon, u64 sensor_map)
+{
+ DECLARE_BITMAP(smap, BITS_PER_TYPE(sensor_map));
+ unsigned long bit_pos;
+ int err = 0;
+ int i = 0;
+
+ bitmap_from_u64(smap, sensor_map);
+
+ for_each_set_bit(bit_pos, smap, BITS_PER_TYPE(sensor_map)) {
+ hwmon->temp_channel_desc[i].sensor_index = bit_pos;
+ i++;
+ }
+
+ if (hwmon->module_scount)
+ err = mlx5_hwmon_get_module_sensor_index(hwmon->mdev,
+ &hwmon->temp_channel_desc[i].sensor_index);
+
+ return err;
+}
+
+static void mlx5_hwmon_channel_info_init(struct mlx5_hwmon *hwmon)
+{
+ int i;
+
+ hwmon->channel_info[0] = &hwmon->chip_info;
+ hwmon->channel_info[1] = &hwmon->temp_info;
+
+ hwmon->chip_channel_config[0] = HWMON_C_REGISTER_TZ;
+ hwmon->chip_info.config = (const u32 *)hwmon->chip_channel_config;
+ hwmon->chip_info.type = hwmon_chip;
+
+ for (i = 0; i < hwmon->asic_platform_scount + hwmon->module_scount; i++)
+ hwmon->temp_channel_config[i] = HWMON_T_INPUT | HWMON_T_HIGHEST | HWMON_T_CRIT |
+ HWMON_T_RESET_HISTORY | HWMON_T_LABEL;
+
+ hwmon->temp_info.config = (const u32 *)hwmon->temp_channel_config;
+ hwmon->temp_info.type = hwmon_temp;
+}
+
+static int mlx5_hwmon_is_module_mon_cap(struct mlx5_core_dev *mdev, bool *mon_cap)
+{
+ u32 mtmp_out[MLX5_ST_SZ_DW(mtmp_reg)];
+ u32 module_index;
+ int err;
+
+ err = mlx5_hwmon_get_module_sensor_index(mdev, &module_index);
+ if (err)
+ return err;
+
+ err = mlx5_hwmon_query_mtmp(mdev, module_index, mtmp_out);
+ if (err)
+ return err;
+
+ if (MLX5_GET(mtmp_reg, mtmp_out, temperature))
+ *mon_cap = true;
+
+ return 0;
+}
+
+static int mlx5_hwmon_get_sensors_count(struct mlx5_core_dev *mdev, u32 *asic_platform_scount)
+{
+ u32 mtcap_out[MLX5_ST_SZ_DW(mtcap_reg)] = {};
+ u32 mtcap_in[MLX5_ST_SZ_DW(mtcap_reg)] = {};
+ int err;
+
+ err = mlx5_core_access_reg(mdev, mtcap_in, sizeof(mtcap_in),
+ mtcap_out, sizeof(mtcap_out),
+ MLX5_REG_MTCAP, 0, 0);
+ if (err)
+ return err;
+
+ *asic_platform_scount = MLX5_GET(mtcap_reg, mtcap_out, sensor_count);
+
+ return 0;
+}
+
+static void mlx5_hwmon_free(struct mlx5_hwmon *hwmon)
+{
+ if (!hwmon)
+ return;
+
+ kfree(hwmon->temp_channel_config);
+ kfree(hwmon->temp_channel_desc);
+ kfree(hwmon);
+}
+
+static struct mlx5_hwmon *mlx5_hwmon_alloc(struct mlx5_core_dev *mdev)
+{
+ struct mlx5_hwmon *hwmon;
+ bool mon_cap = false;
+ u32 sensors_count;
+ int err;
+
+ hwmon = kzalloc(sizeof(*mdev->hwmon), GFP_KERNEL);
+ if (!hwmon)
+ return ERR_PTR(-ENOMEM);
+
+ err = mlx5_hwmon_get_sensors_count(mdev, &hwmon->asic_platform_scount);
+ if (err)
+ goto err_free_hwmon;
+
+ /* check if module sensor has thermal mon cap. if yes, allocate channel desc for it */
+ err = mlx5_hwmon_is_module_mon_cap(mdev, &mon_cap);
+ if (err)
+ goto err_free_hwmon;
+
+ hwmon->module_scount = mon_cap ? 1 : 0;
+ sensors_count = hwmon->asic_platform_scount + hwmon->module_scount;
+ hwmon->temp_channel_desc = kcalloc(sensors_count, sizeof(*hwmon->temp_channel_desc),
+ GFP_KERNEL);
+ if (!hwmon->temp_channel_desc) {
+ err = -ENOMEM;
+ goto err_free_hwmon;
+ }
+
+ /* sensors configuration values array, must be 0-terminated hence, + 1 */
+ hwmon->temp_channel_config = kcalloc(sensors_count + 1, sizeof(*hwmon->temp_channel_config),
+ GFP_KERNEL);
+ if (!hwmon->temp_channel_config) {
+ err = -ENOMEM;
+ goto err_free_temp_channel_desc;
+ }
+
+ hwmon->mdev = mdev;
+
+ return hwmon;
+
+err_free_temp_channel_desc:
+ kfree(hwmon->temp_channel_desc);
+err_free_hwmon:
+ kfree(hwmon);
+ return ERR_PTR(err);
+}
+
+static int mlx5_hwmon_dev_init(struct mlx5_hwmon *hwmon)
+{
+ u32 mtcap_out[MLX5_ST_SZ_DW(mtcap_reg)] = {};
+ u32 mtcap_in[MLX5_ST_SZ_DW(mtcap_reg)] = {};
+ int err;
+ int i;
+
+ err = mlx5_core_access_reg(hwmon->mdev, mtcap_in, sizeof(mtcap_in),
+ mtcap_out, sizeof(mtcap_out),
+ MLX5_REG_MTCAP, 0, 0);
+ if (err)
+ return err;
+
+ mlx5_hwmon_channel_info_init(hwmon);
+ mlx5_hwmon_init_sensors_indexes(hwmon, MLX5_GET64(mtcap_reg, mtcap_out, sensor_map));
+ err = mlx5_hwmon_init_channels_names(hwmon);
+ if (err)
+ return err;
+
+ for (i = 0; i < hwmon->asic_platform_scount + hwmon->module_scount; i++) {
+ err = mlx5_hwmon_enable_max_temp(hwmon->mdev,
+ hwmon->temp_channel_desc[i].sensor_index);
+ if (err)
+ return err;
+ }
+
+ hwmon->chip.ops = &mlx5_hwmon_ops;
+ hwmon->chip.info = (const struct hwmon_channel_info **)hwmon->channel_info;
+
+ return 0;
+}
+
+int mlx5_hwmon_dev_register(struct mlx5_core_dev *mdev)
+{
+ struct device *dev = mdev->device;
+ struct mlx5_hwmon *hwmon;
+ int err;
+
+ if (!MLX5_CAP_MCAM_REG(mdev, mtmp))
+ return 0;
+
+ hwmon = mlx5_hwmon_alloc(mdev);
+ if (IS_ERR(hwmon))
+ return PTR_ERR(hwmon);
+
+ err = mlx5_hwmon_dev_init(hwmon);
+ if (err)
+ goto err_free_hwmon;
+
+ hwmon->hwmon_dev = hwmon_device_register_with_info(dev, "mlx5",
+ hwmon,
+ &hwmon->chip,
+ NULL);
+ if (IS_ERR(hwmon->hwmon_dev)) {
+ err = PTR_ERR(hwmon->hwmon_dev);
+ goto err_free_hwmon;
+ }
+
+ mdev->hwmon = hwmon;
+ return 0;
+
+err_free_hwmon:
+ mlx5_hwmon_free(hwmon);
+ return err;
+}
+
+void mlx5_hwmon_dev_unregister(struct mlx5_core_dev *mdev)
+{
+ struct mlx5_hwmon *hwmon = mdev->hwmon;
+
+ if (!hwmon)
+ return;
+
+ hwmon_device_unregister(hwmon->hwmon_dev);
+ mlx5_hwmon_free(hwmon);
+ mdev->hwmon = NULL;
+}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/hwmon.h b/drivers/net/ethernet/mellanox/mlx5/core/hwmon.h
new file mode 100644
index 000000000000..999654a9b9da
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/hwmon.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+ * Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved
+ */
+#ifndef __MLX5_HWMON_H__
+#define __MLX5_HWMON_H__
+
+#include <linux/mlx5/driver.h>
+
+#if IS_ENABLED(CONFIG_HWMON)
+
+int mlx5_hwmon_dev_register(struct mlx5_core_dev *mdev);
+void mlx5_hwmon_dev_unregister(struct mlx5_core_dev *mdev);
+
+#else
+static inline int mlx5_hwmon_dev_register(struct mlx5_core_dev *mdev)
+{
+ return 0;
+}
+
+static inline void mlx5_hwmon_dev_unregister(struct mlx5_core_dev *mdev) {}
+
+#endif
+
+#endif /* __MLX5_HWMON_H__ */
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index db2e8e4f848d..0389e84f9815 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -49,7 +49,6 @@
#include <linux/version.h>
#include <net/devlink.h>
#include "mlx5_core.h"
-#include "thermal.h"
#include "lib/eq.h"
#include "fs_core.h"
#include "lib/mpfs.h"
@@ -73,6 +72,7 @@
#include "sf/dev/dev.h"
#include "sf/sf.h"
#include "mlx5_irq.h"
+#include "hwmon.h"
MODULE_AUTHOR("Eli Cohen <eli@xxxxxxxxxxxx>");
MODULE_DESCRIPTION("Mellanox 5th generation network adapters (ConnectX series) core driver");
@@ -1930,9 +1930,9 @@ static int probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
if (err)
dev_err(&pdev->dev, "mlx5_crdump_enable failed with error code %d\n", err);
- err = mlx5_thermal_init(dev);
+ err = mlx5_hwmon_dev_register(dev);
if (err)
- dev_err(&pdev->dev, "mlx5_thermal_init failed with error code %d\n", err);
+ mlx5_core_err(dev, "mlx5_hwmon_dev_register failed with error code %d\n", err);
pci_save_state(pdev);
devlink_register(devlink);
@@ -1964,7 +1964,7 @@ static void remove_one(struct pci_dev *pdev)
mlx5_drain_health_wq(dev);
devlink_unregister(devlink);
mlx5_sriov_disable(pdev, false);
- mlx5_thermal_uninit(dev);
+ mlx5_hwmon_dev_unregister(dev);
mlx5_crdump_disable(dev);
mlx5_uninit_one(dev);
mlx5_pci_close(dev);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/thermal.c b/drivers/net/ethernet/mellanox/mlx5/core/thermal.c
deleted file mode 100644
index 52199d39657e..000000000000
--- a/drivers/net/ethernet/mellanox/mlx5/core/thermal.c
+++ /dev/null
@@ -1,114 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
-// Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES.
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/device.h>
-#include <linux/thermal.h>
-#include <linux/err.h>
-#include <linux/mlx5/driver.h>
-#include "mlx5_core.h"
-#include "thermal.h"
-
-#define MLX5_THERMAL_POLL_INT_MSEC 1000
-#define MLX5_THERMAL_NUM_TRIPS 0
-#define MLX5_THERMAL_ASIC_SENSOR_INDEX 0
-
-/* Bit string indicating the writeablility of trip points if any */
-#define MLX5_THERMAL_TRIP_MASK (BIT(MLX5_THERMAL_NUM_TRIPS) - 1)
-
-struct mlx5_thermal {
- struct mlx5_core_dev *mdev;
- struct thermal_zone_device *tzdev;
-};
-
-static int mlx5_thermal_get_mtmp_temp(struct mlx5_core_dev *mdev, u32 id, int *p_temp)
-{
- u32 mtmp_out[MLX5_ST_SZ_DW(mtmp_reg)] = {};
- u32 mtmp_in[MLX5_ST_SZ_DW(mtmp_reg)] = {};
- int err;
-
- MLX5_SET(mtmp_reg, mtmp_in, sensor_index, id);
-
- err = mlx5_core_access_reg(mdev, mtmp_in, sizeof(mtmp_in),
- mtmp_out, sizeof(mtmp_out),
- MLX5_REG_MTMP, 0, 0);
-
- if (err)
- return err;
-
- *p_temp = MLX5_GET(mtmp_reg, mtmp_out, temperature);
-
- return 0;
-}
-
-static int mlx5_thermal_get_temp(struct thermal_zone_device *tzdev,
- int *p_temp)
-{
- struct mlx5_thermal *thermal = thermal_zone_device_priv(tzdev);
- struct mlx5_core_dev *mdev = thermal->mdev;
- int err;
-
- err = mlx5_thermal_get_mtmp_temp(mdev, MLX5_THERMAL_ASIC_SENSOR_INDEX, p_temp);
-
- if (err)
- return err;
-
- /* The unit of temp returned is in 0.125 C. The thermal
- * framework expects the value in 0.001 C.
- */
- *p_temp *= 125;
-
- return 0;
-}
-
-static struct thermal_zone_device_ops mlx5_thermal_ops = {
- .get_temp = mlx5_thermal_get_temp,
-};
-
-int mlx5_thermal_init(struct mlx5_core_dev *mdev)
-{
- char data[THERMAL_NAME_LENGTH];
- struct mlx5_thermal *thermal;
- int err;
-
- if (!mlx5_core_is_pf(mdev) && !mlx5_core_is_ecpf(mdev))
- return 0;
-
- err = snprintf(data, sizeof(data), "mlx5_%s", dev_name(mdev->device));
- if (err < 0 || err >= sizeof(data)) {
- mlx5_core_err(mdev, "Failed to setup thermal zone name, %d\n", err);
- return -EINVAL;
- }
-
- thermal = kzalloc(sizeof(*thermal), GFP_KERNEL);
- if (!thermal)
- return -ENOMEM;
-
- thermal->mdev = mdev;
- thermal->tzdev = thermal_zone_device_register_with_trips(data,
- NULL,
- MLX5_THERMAL_NUM_TRIPS,
- MLX5_THERMAL_TRIP_MASK,
- thermal,
- &mlx5_thermal_ops,
- NULL, 0, MLX5_THERMAL_POLL_INT_MSEC);
- if (IS_ERR(thermal->tzdev)) {
- err = PTR_ERR(thermal->tzdev);
- mlx5_core_err(mdev, "Failed to register thermal zone device (%s) %d\n", data, err);
- kfree(thermal);
- return err;
- }
-
- mdev->thermal = thermal;
- return 0;
-}
-
-void mlx5_thermal_uninit(struct mlx5_core_dev *mdev)
-{
- if (!mdev->thermal)
- return;
-
- thermal_zone_device_unregister(mdev->thermal->tzdev);
- kfree(mdev->thermal);
-}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/thermal.h b/drivers/net/ethernet/mellanox/mlx5/core/thermal.h
deleted file mode 100644
index 7d752c122192..000000000000
--- a/drivers/net/ethernet/mellanox/mlx5/core/thermal.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
- * Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES.
- */
-#ifndef __MLX5_THERMAL_DRIVER_H
-#define __MLX5_THERMAL_DRIVER_H
-
-#if IS_ENABLED(CONFIG_THERMAL)
-int mlx5_thermal_init(struct mlx5_core_dev *mdev);
-void mlx5_thermal_uninit(struct mlx5_core_dev *mdev);
-#else
-static inline int mlx5_thermal_init(struct mlx5_core_dev *mdev)
-{
- mdev->thermal = NULL;
- return 0;
-}
-
-static inline void mlx5_thermal_uninit(struct mlx5_core_dev *mdev) { }
-#endif
-
-#endif /* __MLX5_THERMAL_DRIVER_H */
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index fa70c25423b2..3134dbc398a5 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -134,6 +134,7 @@ enum {
MLX5_REG_PCAM = 0x507f,
MLX5_REG_NODE_DESC = 0x6001,
MLX5_REG_HOST_ENDIANNESS = 0x7004,
+ MLX5_REG_MTCAP = 0x9009,
MLX5_REG_MTMP = 0x900A,
MLX5_REG_MCIA = 0x9014,
MLX5_REG_MFRL = 0x9028,
@@ -805,7 +806,7 @@ struct mlx5_core_dev {
struct mlx5_rsc_dump *rsc_dump;
u32 vsc_addr;
struct mlx5_hv_vhca *hv_vhca;
- struct mlx5_thermal *thermal;
+ struct mlx5_hwmon *hwmon;
u64 num_block_tc;
u64 num_block_ipsec;
};
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index b3ad6b9852ec..87fd6f9ed82c 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -10196,7 +10196,9 @@ struct mlx5_ifc_mcam_access_reg_bits {
u8 mrtc[0x1];
u8 regs_44_to_32[0xd];
- u8 regs_31_to_0[0x20];
+ u8 regs_31_to_10[0x16];
+ u8 mtmp[0x1];
+ u8 regs_8_to_0[0x9];
};
struct mlx5_ifc_mcam_access_reg_bits1 {
@@ -10949,6 +10951,15 @@ struct mlx5_ifc_mrtc_reg_bits {
u8 time_l[0x20];
};
+struct mlx5_ifc_mtcap_reg_bits {
+ u8 reserved_at_0[0x19];
+ u8 sensor_count[0x7];
+
+ u8 reserved_at_20[0x20];
+
+ u8 sensor_map[0x40];
+};
+
struct mlx5_ifc_mtmp_reg_bits {
u8 reserved_at_0[0x14];
u8 sensor_index[0xc];
@@ -11036,6 +11047,7 @@ union mlx5_ifc_ports_control_registers_document_bits {
struct mlx5_ifc_mfrl_reg_bits mfrl_reg;
struct mlx5_ifc_mtutc_reg_bits mtutc_reg;
struct mlx5_ifc_mrtc_reg_bits mrtc_reg;
+ struct mlx5_ifc_mtcap_reg_bits mtcap_reg;
struct mlx5_ifc_mtmp_reg_bits mtmp_reg;
u8 reserved_at_0[0x60e0];
};
