1 // SPDX-License-Identifier: GPL-2.0-only
4  * Copyright 2011-2013 Solarflare Communications Inc.
40 #define SENSOR(name, label, hwmon_type, port)				\  macro
42 	SENSOR(CONTROLLER_TEMP,		"Controller board temp.",   TEMP,  -1),
43 	SENSOR(PHY_COMMON_TEMP,		"PHY temp.",		    TEMP,  -1),
44 	SENSOR(CONTROLLER_COOLING,	"Controller heat sink",	    COOL,  -1),
45 	SENSOR(PHY0_TEMP,		"PHY temp.",		    TEMP,  0),
46 	SENSOR(PHY0_COOLING,		"PHY heat sink",	    COOL,  0),
47 	SENSOR(PHY1_TEMP,		"PHY temp.",		    TEMP,  1),
48 	SENSOR(PHY1_COOLING,		"PHY heat sink",	    COOL,  1),
49 	SENSOR(IN_1V0,			"1.0V supply",		    IN,    -1),
50 	SENSOR(IN_1V2,			"1.2V supply",		    IN,    -1),
51 	SENSOR(IN_1V8,			"1.8V supply",		    IN,    -1),
52 	SENSOR(IN_2V5,			"2.5V supply",		    IN,    -1),
53 	SENSOR(IN_3V3,			"3.3V supply",		    IN,    -1),
54 	SENSOR(IN_12V0,			"12.0V supply",		    IN,    -1),
55 	SENSOR(IN_1V2A,			"1.2V analogue supply",	    IN,    -1),
56 	SENSOR(IN_VREF,			"Ref. voltage",		    IN,    -1),
57 	SENSOR(OUT_VAOE,		"AOE FPGA supply",	    IN,    -1),
58 	SENSOR(AOE_TEMP,		"AOE FPGA temp.",	    TEMP,  -1),
59 	SENSOR(PSU_AOE_TEMP,		"AOE regulator temp.",	    TEMP,  -1),
60 	SENSOR(PSU_TEMP,		"Controller regulator temp.",
61 								    TEMP,  -1),
62 	SENSOR(FAN_0,			"Fan 0",		    COOL,  -1),
63 	SENSOR(FAN_1,			"Fan 1",		    COOL,  -1),
64 	SENSOR(FAN_2,			"Fan 2",		    COOL,  -1),
65 	SENSOR(FAN_3,			"Fan 3",		    COOL,  -1),
66 	SENSOR(FAN_4,			"Fan 4",		    COOL,  -1),
67 	SENSOR(IN_VAOE,			"AOE input supply",	    IN,    -1),
68 	SENSOR(OUT_IAOE,		"AOE output current",	    CURR,  -1),
69 	SENSOR(IN_IAOE,			"AOE input current",	    CURR,  -1),
70 	SENSOR(NIC_POWER,		"Board power use",	    POWER, -1),
71 	SENSOR(IN_0V9,			"0.9V supply",		    IN,    -1),
72 	SENSOR(IN_I0V9,			"0.9V supply current",	    CURR,  -1),
73 	SENSOR(IN_I1V2,			"1.2V supply current",	    CURR,  -1),
74 	SENSOR(IN_0V9_ADC,		"0.9V supply (ext. ADC)",   IN,    -1),
75 	SENSOR(CONTROLLER_2_TEMP,	"Controller board temp. 2", TEMP,  -1),
76 	SENSOR(VREG_INTERNAL_TEMP,	"Regulator die temp.",	    TEMP,  -1),
77 	SENSOR(VREG_0V9_TEMP,		"0.9V regulator temp.",     TEMP,  -1),
78 	SENSOR(VREG_1V2_TEMP,		"1.2V regulator temp.",     TEMP,  -1),
79 	SENSOR(CONTROLLER_VPTAT,
80 			      "Controller PTAT voltage (int. ADC)", IN,    -1),
81 	SENSOR(CONTROLLER_INTERNAL_TEMP,
82 				 "Controller die temp. (int. ADC)", TEMP,  -1),
83 	SENSOR(CONTROLLER_VPTAT_EXTADC,
84 			      "Controller PTAT voltage (ext. ADC)", IN,    -1),
85 	SENSOR(CONTROLLER_INTERNAL_TEMP_EXTADC,
86 				 "Controller die temp. (ext. ADC)", TEMP,  -1),
87 	SENSOR(AMBIENT_TEMP,		"Ambient temp.",	    TEMP,  -1),
88 	SENSOR(AIRFLOW,			"Air flow raw",		    IN,    -1),
89 	SENSOR(VDD08D_VSS08D_CSR,	"0.9V die (int. ADC)",	    IN,    -1),
90 	SENSOR(VDD08D_VSS08D_CSR_EXTADC, "0.9V die (ext. ADC)",	    IN,    -1),
91 	SENSOR(HOTPOINT_TEMP,  "Controller board temp. (hotpoint)", TEMP,  -1),
92 #undef SENSOR
114 	 * know about, but do not expect new sensor states. */  in efx_mcdi_sensor_event()
120 		name = "No sensor name available";  in efx_mcdi_sensor_event()
128 	netif_err(efx, hw, efx->net_dev,  in efx_mcdi_sensor_event()
129 		  "Sensor %d (%s) reports condition '%s' for value %d%s\n",  in efx_mcdi_sensor_event()
151 		       hwmon->dma_buf.dma_addr);  in efx_mcdi_mon_update()
152 	MCDI_SET_DWORD(inbuf, READ_SENSORS_EXT_IN_LENGTH, hwmon->dma_buf.len);  in efx_mcdi_mon_update()
157 		hwmon->last_update = jiffies;  in efx_mcdi_mon_update()
164 	struct efx_nic *efx = dev_get_drvdata(dev->parent);  in efx_mcdi_mon_get_entry()
170 	mutex_lock(&hwmon->update_lock);  in efx_mcdi_mon_get_entry()
173 	if (time_before(jiffies, hwmon->last_update + HZ))  in efx_mcdi_mon_get_entry()
179 	*entry = ((efx_dword_t *)hwmon->dma_buf.addr)[index];  in efx_mcdi_mon_get_entry()
181 	mutex_unlock(&hwmon->update_lock);  in efx_mcdi_mon_get_entry()
196 	rc = efx_mcdi_mon_get_entry(dev, mon_attr->index, &entry);  in efx_mcdi_mon_show_value()
202 		return -EBUSY;  in efx_mcdi_mon_show_value()
206 	switch (mon_attr->hwmon_type) {  in efx_mcdi_mon_show_value()
208 		/* Convert temperature from degrees to milli-degrees Celsius */  in efx_mcdi_mon_show_value()
231 	value = mon_attr->limit_value;  in efx_mcdi_mon_show_limit()
233 	switch (mon_attr->hwmon_type) {  in efx_mcdi_mon_show_limit()
235 		/* Convert temperature from degrees to milli-degrees Celsius */  in efx_mcdi_mon_show_limit()
260 	rc = efx_mcdi_mon_get_entry(dev, mon_attr->index, &entry);  in efx_mcdi_mon_show_alarm()
275 		       efx_mcdi_sensor_type[mon_attr->type].label);  in efx_mcdi_mon_show_label()
286 	struct efx_mcdi_mon_attribute *attr = &hwmon->attrs[hwmon->n_attrs];  in efx_mcdi_mon_add_attr()
288 	strscpy(attr->name, name, sizeof(attr->name));  in efx_mcdi_mon_add_attr()
289 	attr->index = index;  in efx_mcdi_mon_add_attr()
290 	attr->type = type;  in efx_mcdi_mon_add_attr()
292 		attr->hwmon_type = efx_mcdi_sensor_type[type].hwmon_type;  in efx_mcdi_mon_add_attr()
294 		attr->hwmon_type = EFX_HWMON_UNKNOWN;  in efx_mcdi_mon_add_attr()
295 	attr->limit_value = limit_value;  in efx_mcdi_mon_add_attr()
296 	sysfs_attr_init(&attr->dev_attr.attr);  in efx_mcdi_mon_add_attr()
297 	attr->dev_attr.attr.name = attr->name;  in efx_mcdi_mon_add_attr()
298 	attr->dev_attr.attr.mode = 0444;  in efx_mcdi_mon_add_attr()
299 	attr->dev_attr.show = reader;  in efx_mcdi_mon_add_attr()
300 	hwmon->group.attrs[hwmon->n_attrs++] = &attr->dev_attr.attr;  in efx_mcdi_mon_add_attr()
326 			return -EIO;  in efx_mcdi_mon_probe()
339 		efx, &hwmon->dma_buf,  in efx_mcdi_mon_probe()
345 	mutex_init(&hwmon->update_lock);  in efx_mcdi_mon_probe()
350 	 * value, min, max, crit, alarm and label for each sensor.  in efx_mcdi_mon_probe()
353 	hwmon->attrs = kcalloc(n_attrs, sizeof(*hwmon->attrs), GFP_KERNEL);  in efx_mcdi_mon_probe()
354 	if (!hwmon->attrs) {  in efx_mcdi_mon_probe()
355 		rc = -ENOMEM;  in efx_mcdi_mon_probe()
358 	hwmon->group.attrs = kcalloc(n_attrs + 1, sizeof(struct attribute *),  in efx_mcdi_mon_probe()
360 	if (!hwmon->group.attrs) {  in efx_mcdi_mon_probe()
361 		rc = -ENOMEM;  in efx_mcdi_mon_probe()
365 	for (i = 0, j = -1, type = -1; ; i++) {  in efx_mcdi_mon_probe()
371 		/* Find next sensor type or exit if there is none */  in efx_mcdi_mon_probe()
377 				j = -1;  in efx_mcdi_mon_probe()
390 					rc = -EIO;  in efx_mcdi_mon_probe()
401 					rc = -EIO;  in efx_mcdi_mon_probe()
423 			hwmon_prefix = "temp";  in efx_mcdi_mon_probe()
424 			hwmon_index = ++n_temp; /* 1-based */  in efx_mcdi_mon_probe()
432 			hwmon_index = ++n_cool; /* 1-based */  in efx_mcdi_mon_probe()
436 			hwmon_index = n_in++; /* 0-based */  in efx_mcdi_mon_probe()
440 			hwmon_index = ++n_curr; /* 1-based */  in efx_mcdi_mon_probe()
444 			hwmon_index = ++n_power; /* 1-based */  in efx_mcdi_mon_probe()
504 	hwmon->groups[0] = &hwmon->group;  in efx_mcdi_mon_probe()
505 	hwmon->device = hwmon_device_register_with_groups(&efx->pci_dev->dev,  in efx_mcdi_mon_probe()
507 							  hwmon->groups);  in efx_mcdi_mon_probe()
508 	if (IS_ERR(hwmon->device)) {  in efx_mcdi_mon_probe()
509 		rc = PTR_ERR(hwmon->device);  in efx_mcdi_mon_probe()
524 	if (hwmon->device)  in efx_mcdi_mon_remove()
525 		hwmon_device_unregister(hwmon->device);  in efx_mcdi_mon_remove()
526 	kfree(hwmon->attrs);  in efx_mcdi_mon_remove()
527 	kfree(hwmon->group.attrs);  in efx_mcdi_mon_remove()
528 	efx_nic_free_buffer(efx, &hwmon->dma_buf);  in efx_mcdi_mon_remove()