cxgb4: Add thermal zone support (b1871915) · Commits · EulixOS / Software / Kernel

drivers/net/ethernet/chelsio/cxgb4/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -12,3 +12,4 @@ cxgb4-objs := cxgb4_main.o l2t.o smt.o t4_hw.o sge.o clip_tbl.o cxgb4_ethtool.o
		cxgb4-$(CONFIG_CHELSIO_T4_DCB) += cxgb4_dcb.o
		cxgb4-$(CONFIG_CHELSIO_T4_FCOE) += cxgb4_fcoe.o
		cxgb4-$(CONFIG_DEBUG_FS) += cxgb4_debugfs.o
		cxgb4-$(CONFIG_THERMAL) += cxgb4_thermal.o

drivers/net/ethernet/chelsio/cxgb4/cxgb4.h

+18 −0

Original line number	Diff line number	Diff line
		@@ -52,6 +52,7 @@
		#include <linux/ptp_clock_kernel.h>
		#include <linux/ptp_classify.h>
		#include <linux/crash_dump.h>
		#include <linux/thermal.h>
		#include <asm/io.h>
		#include "t4_chip_type.h"
		#include "cxgb4_uld.h"
		@@ -890,6 +891,14 @@ struct mps_encap_entry {
		atomic_t refcnt;
		};

		#ifdef CONFIG_THERMAL
		struct ch_thermal {
		struct thermal_zone_device *tzdev;
		int trip_temp;
		int trip_type;
		};
		#endif

		struct adapter {
		void __iomem *regs;
		void __iomem *bar2;
		@@ -1008,6 +1017,9 @@ struct adapter {

		/* Dump buffer for collecting logs in kdump kernel */
		struct vmcoredd_data vmcoredd;
		#ifdef CONFIG_THERMAL
		struct ch_thermal ch_thermal;
		#endif
		};

		/* Support for "sched-class" command to allow a TX Scheduling Class to be
		@@ -1862,4 +1874,10 @@ void cxgb4_ring_tx_db(struct adapter adap, struct sge_txq q, int n);
		int t4_set_vlan_acl(struct adapter *adap, unsigned int mbox, unsigned int vf,
		u16 vlan);
		int cxgb4_dcb_enabled(const struct net_device *dev);

		#ifdef CONFIG_THERMAL
		int cxgb4_thermal_init(struct adapter *adap);
		int cxgb4_thermal_remove(struct adapter *adap);
		#endif /* CONFIG_THERMAL */

		#endif /* __CXGB4_H__ */

drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -5864,6 +5864,11 @@ static int init_one(struct pci_dev pdev, const struct pci_device_id ent)
		if (!is_t4(adapter->params.chip))
		cxgb4_ptp_init(adapter);

		#ifdef CONFIG_THERMAL
		if (!is_t4(adapter->params.chip) && (adapter->flags & FW_OK))
		cxgb4_thermal_init(adapter);
		#endif /* CONFIG_THERMAL */

		print_adapter_info(adapter);
		return 0;

		@@ -5929,6 +5934,9 @@ static void remove_one(struct pci_dev *pdev)

		if (!is_t4(adapter->params.chip))
		cxgb4_ptp_stop(adapter);
		#ifdef CONFIG_THERMAL
		cxgb4_thermal_remove(adapter);
		#endif

		/* If we allocated filters, free up state associated with any
		* valid filters ...

drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c

0 → 100644

+114 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2017 Chelsio Communications. All rights reserved.
		*
		* 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.
		*
		* The full GNU General Public License is included in this distribution in
		* the file called "COPYING".
		*
		* Written by: Ganesh Goudar (ganeshgr@chelsio.com)
		*/

		#include "cxgb4.h"

		#define CXGB4_NUM_TRIPS 1

		static int cxgb4_thermal_get_temp(struct thermal_zone_device *tzdev,
		int *temp)
		{
		struct adapter *adap = tzdev->devdata;
		u32 param, val;
		int ret;

		param = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) \|
		FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_DIAG) \|
		FW_PARAMS_PARAM_Y_V(FW_PARAM_DEV_DIAG_TMP));

		ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1,
		&param, &val);
		if (ret < 0 \|\| val == 0)
		return -1;

		temp = val 1000;
		return 0;
		}

		static int cxgb4_thermal_get_trip_type(struct thermal_zone_device *tzdev,
		int trip, enum thermal_trip_type *type)
		{
		struct adapter *adap = tzdev->devdata;

		if (!adap->ch_thermal.trip_temp)
		return -EINVAL;

		*type = adap->ch_thermal.trip_type;
		return 0;
		}

		static int cxgb4_thermal_get_trip_temp(struct thermal_zone_device *tzdev,
		int trip, int *temp)
		{
		struct adapter *adap = tzdev->devdata;

		if (!adap->ch_thermal.trip_temp)
		return -EINVAL;

		*temp = adap->ch_thermal.trip_temp;
		return 0;
		}

		static struct thermal_zone_device_ops cxgb4_thermal_ops = {
		.get_temp = cxgb4_thermal_get_temp,
		.get_trip_type = cxgb4_thermal_get_trip_type,
		.get_trip_temp = cxgb4_thermal_get_trip_temp,
		};

		int cxgb4_thermal_init(struct adapter *adap)
		{
		struct ch_thermal *ch_thermal = &adap->ch_thermal;
		int num_trip = CXGB4_NUM_TRIPS;
		u32 param, val;
		int ret;

		/* on older firmwares we may not get the trip temperature,
		* set the num of trips to 0.
		*/
		param = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) \|
		FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_DIAG) \|
		FW_PARAMS_PARAM_Y_V(FW_PARAM_DEV_DIAG_MAXTMPTHRESH));

		ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1,
		&param, &val);
		if (ret < 0) {
		num_trip = 0; /* could not get trip temperature */
		} else {
		ch_thermal->trip_temp = val * 1000;
		ch_thermal->trip_type = THERMAL_TRIP_CRITICAL;
		}

		ch_thermal->tzdev = thermal_zone_device_register("cxgb4", num_trip,
		0, adap,
		&cxgb4_thermal_ops,
		NULL, 0, 0);
		if (IS_ERR(ch_thermal->tzdev)) {
		ret = PTR_ERR(ch_thermal->tzdev);
		dev_err(adap->pdev_dev, "Failed to register thermal zone\n");
		ch_thermal->tzdev = NULL;
		return ret;
		}
		return 0;
		}

		int cxgb4_thermal_remove(struct adapter *adap)
		{
		if (adap->ch_thermal.tzdev)
		thermal_zone_device_unregister(adap->ch_thermal.tzdev);
		return 0;
		}

drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -1332,6 +1332,7 @@ enum fw_params_param_dev_phyfw {
		enum fw_params_param_dev_diag {
		FW_PARAM_DEV_DIAG_TMP = 0x00,
		FW_PARAM_DEV_DIAG_VDD = 0x01,
		FW_PARAM_DEV_DIAG_MAXTMPTHRESH = 0x02,
		};

		enum fw_params_param_dev_fwcache {