xref: /freebsd/sys/dev/sfxge/common/mcdi_mon.c (revision 718cf2ccb9956613756ab15d7a0e28f2c8e91cab)
1 /*-
2  * Copyright (c) 2009-2016 Solarflare Communications Inc.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice,
9  *    this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright notice,
11  *    this list of conditions and the following disclaimer in the documentation
12  *    and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
15  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
16  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
21  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
24  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  * The views and conclusions contained in the software and documentation are
27  * those of the authors and should not be interpreted as representing official
28  * policies, either expressed or implied, of the FreeBSD Project.
29  */
30 
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33 
34 #include "efx.h"
35 #include "efx_impl.h"
36 
37 #if EFSYS_OPT_MON_MCDI
38 
39 #if EFSYS_OPT_MON_STATS
40 
41 #define	MCDI_MON_NEXT_PAGE  ((uint16_t)0xfffe)
42 #define	MCDI_MON_INVALID_SENSOR ((uint16_t)0xfffd)
43 #define	MCDI_MON_PAGE_SIZE 0x20
44 
45 /* Bitmasks of valid port(s) for each sensor */
46 #define	MCDI_MON_PORT_NONE	(0x00)
47 #define	MCDI_MON_PORT_P1	(0x01)
48 #define	MCDI_MON_PORT_P2	(0x02)
49 #define	MCDI_MON_PORT_P3	(0x04)
50 #define	MCDI_MON_PORT_P4	(0x08)
51 #define	MCDI_MON_PORT_Px	(0xFFFF)
52 
53 /* Get port mask from one-based MCDI port number */
54 #define	MCDI_MON_PORT_MASK(_emip) (1U << ((_emip)->emi_port - 1))
55 
56 /* Entry for MCDI sensor in sensor map */
57 #define	STAT(portmask, stat)	\
58 	{ (MCDI_MON_PORT_##portmask), (EFX_MON_STAT_##stat) }
59 
60 /* Entry for sensor next page flag in sensor map */
61 #define	STAT_NEXT_PAGE()	\
62 	{ MCDI_MON_PORT_NONE, MCDI_MON_NEXT_PAGE }
63 
64 /* Placeholder for gaps in the array */
65 #define	STAT_NO_SENSOR()	\
66 	{ MCDI_MON_PORT_NONE, MCDI_MON_INVALID_SENSOR }
67 
68 /* Map from MC sensors to monitor statistics */
69 static const struct mcdi_sensor_map_s {
70 	uint16_t	msm_port_mask;
71 	uint16_t	msm_stat;
72 } mcdi_sensor_map[] = {
73 	/* Sensor page 0		MC_CMD_SENSOR_xxx */
74 	STAT(Px, INT_TEMP),		/* 0x00 CONTROLLER_TEMP */
75 	STAT(Px, EXT_TEMP),		/* 0x01 PHY_COMMON_TEMP */
76 	STAT(Px, INT_COOLING),		/* 0x02 CONTROLLER_COOLING */
77 	STAT(P1, EXT_TEMP),		/* 0x03 PHY0_TEMP */
78 	STAT(P1, EXT_COOLING),		/* 0x04 PHY0_COOLING */
79 	STAT(P2, EXT_TEMP),		/* 0x05 PHY1_TEMP */
80 	STAT(P2, EXT_COOLING),		/* 0x06 PHY1_COOLING */
81 	STAT(Px, 1V),			/* 0x07 IN_1V0 */
82 	STAT(Px, 1_2V),			/* 0x08 IN_1V2 */
83 	STAT(Px, 1_8V),			/* 0x09 IN_1V8 */
84 	STAT(Px, 2_5V),			/* 0x0a IN_2V5 */
85 	STAT(Px, 3_3V),			/* 0x0b IN_3V3 */
86 	STAT(Px, 12V),			/* 0x0c IN_12V0 */
87 	STAT(Px, 1_2VA),		/* 0x0d IN_1V2A */
88 	STAT(Px, VREF),			/* 0x0e IN_VREF */
89 	STAT(Px, VAOE),			/* 0x0f OUT_VAOE */
90 	STAT(Px, AOE_TEMP),		/* 0x10 AOE_TEMP */
91 	STAT(Px, PSU_AOE_TEMP),		/* 0x11 PSU_AOE_TEMP */
92 	STAT(Px, PSU_TEMP),		/* 0x12 PSU_TEMP */
93 	STAT(Px, FAN0),			/* 0x13 FAN_0 */
94 	STAT(Px, FAN1),			/* 0x14 FAN_1 */
95 	STAT(Px, FAN2),			/* 0x15 FAN_2 */
96 	STAT(Px, FAN3),			/* 0x16 FAN_3 */
97 	STAT(Px, FAN4),			/* 0x17 FAN_4 */
98 	STAT(Px, VAOE_IN),		/* 0x18 IN_VAOE */
99 	STAT(Px, IAOE),			/* 0x19 OUT_IAOE */
100 	STAT(Px, IAOE_IN),		/* 0x1a IN_IAOE */
101 	STAT(Px, NIC_POWER),		/* 0x1b NIC_POWER */
102 	STAT(Px, 0_9V),			/* 0x1c IN_0V9 */
103 	STAT(Px, I0_9V),		/* 0x1d IN_I0V9 */
104 	STAT(Px, I1_2V),		/* 0x1e IN_I1V2 */
105 	STAT_NEXT_PAGE(),		/* 0x1f Next page flag (not a sensor) */
106 
107 	/* Sensor page 1		MC_CMD_SENSOR_xxx */
108 	STAT(Px, 0_9V_ADC),		/* 0x20 IN_0V9_ADC */
109 	STAT(Px, INT_TEMP2),		/* 0x21 CONTROLLER_2_TEMP */
110 	STAT(Px, VREG_TEMP),		/* 0x22 VREG_INTERNAL_TEMP */
111 	STAT(Px, VREG_0_9V_TEMP),	/* 0x23 VREG_0V9_TEMP */
112 	STAT(Px, VREG_1_2V_TEMP),	/* 0x24 VREG_1V2_TEMP */
113 	STAT(Px, INT_VPTAT),		/* 0x25 CTRLR. VPTAT */
114 	STAT(Px, INT_ADC_TEMP),		/* 0x26 CTRLR. INTERNAL_TEMP */
115 	STAT(Px, EXT_VPTAT),		/* 0x27 CTRLR. VPTAT_EXTADC */
116 	STAT(Px, EXT_ADC_TEMP),		/* 0x28 CTRLR. INTERNAL_TEMP_EXTADC */
117 	STAT(Px, AMBIENT_TEMP),		/* 0x29 AMBIENT_TEMP */
118 	STAT(Px, AIRFLOW),		/* 0x2a AIRFLOW */
119 	STAT(Px, VDD08D_VSS08D_CSR),	/* 0x2b VDD08D_VSS08D_CSR */
120 	STAT(Px, VDD08D_VSS08D_CSR_EXTADC), /* 0x2c VDD08D_VSS08D_CSR_EXTADC */
121 	STAT(Px, HOTPOINT_TEMP),	/* 0x2d HOTPOINT_TEMP */
122 	STAT(P1, PHY_POWER_SWITCH_PORT0),   /* 0x2e PHY_POWER_SWITCH_PORT0 */
123 	STAT(P2, PHY_POWER_SWITCH_PORT1),   /* 0x2f PHY_POWER_SWITCH_PORT1 */
124 	STAT(Px, MUM_VCC),		/* 0x30 MUM_VCC */
125 	STAT(Px, 0V9_A),		/* 0x31 0V9_A */
126 	STAT(Px, I0V9_A),		/* 0x32 I0V9_A */
127 	STAT(Px, 0V9_A_TEMP),		/* 0x33 0V9_A_TEMP */
128 	STAT(Px, 0V9_B),		/* 0x34 0V9_B */
129 	STAT(Px, I0V9_B),		/* 0x35 I0V9_B */
130 	STAT(Px, 0V9_B_TEMP),		/* 0x36 0V9_B_TEMP */
131 	STAT(Px, CCOM_AVREG_1V2_SUPPLY),  /* 0x37 CCOM_AVREG_1V2_SUPPLY */
132 	STAT(Px, CCOM_AVREG_1V2_SUPPLY_EXT_ADC),
133 					/* 0x38 CCOM_AVREG_1V2_SUPPLY_EXT_ADC */
134 	STAT(Px, CCOM_AVREG_1V8_SUPPLY),  /* 0x39 CCOM_AVREG_1V8_SUPPLY */
135 	STAT(Px, CCOM_AVREG_1V8_SUPPLY_EXT_ADC),
136 					/* 0x3a CCOM_AVREG_1V8_SUPPLY_EXT_ADC */
137 	STAT_NO_SENSOR(),		/* 0x3b (no sensor) */
138 	STAT_NO_SENSOR(),		/* 0x3c (no sensor) */
139 	STAT_NO_SENSOR(),		/* 0x3d (no sensor) */
140 	STAT_NO_SENSOR(),		/* 0x3e (no sensor) */
141 	STAT_NEXT_PAGE(),		/* 0x3f Next page flag (not a sensor) */
142 
143 	/* Sensor page 2		MC_CMD_SENSOR_xxx */
144 	STAT(Px, CONTROLLER_MASTER_VPTAT),	   /* 0x40 MASTER_VPTAT */
145 	STAT(Px, CONTROLLER_MASTER_INTERNAL_TEMP), /* 0x41 MASTER_INT_TEMP */
146 	STAT(Px, CONTROLLER_MASTER_VPTAT_EXT_ADC), /* 0x42 MAST_VPTAT_EXT_ADC */
147 	STAT(Px, CONTROLLER_MASTER_INTERNAL_TEMP_EXT_ADC),
148 					/* 0x43 MASTER_INTERNAL_TEMP_EXT_ADC */
149 	STAT(Px, CONTROLLER_SLAVE_VPTAT),	  /* 0x44 SLAVE_VPTAT */
150 	STAT(Px, CONTROLLER_SLAVE_INTERNAL_TEMP), /* 0x45 SLAVE_INTERNAL_TEMP */
151 	STAT(Px, CONTROLLER_SLAVE_VPTAT_EXT_ADC), /* 0x46 SLAVE_VPTAT_EXT_ADC */
152 	STAT(Px, CONTROLLER_SLAVE_INTERNAL_TEMP_EXT_ADC),
153 					/* 0x47 SLAVE_INTERNAL_TEMP_EXT_ADC */
154 	STAT_NO_SENSOR(),		/* 0x48 (no sensor) */
155 	STAT(Px, SODIMM_VOUT),		/* 0x49 SODIMM_VOUT */
156 	STAT(Px, SODIMM_0_TEMP),	/* 0x4a SODIMM_0_TEMP */
157 	STAT(Px, SODIMM_1_TEMP),	/* 0x4b SODIMM_1_TEMP */
158 	STAT(Px, PHY0_VCC),		/* 0x4c PHY0_VCC */
159 	STAT(Px, PHY1_VCC),		/* 0x4d PHY1_VCC */
160 	STAT(Px, CONTROLLER_TDIODE_TEMP), /* 0x4e CONTROLLER_TDIODE_TEMP */
161 	STAT(Px, BOARD_FRONT_TEMP),	/* 0x4f BOARD_FRONT_TEMP */
162 	STAT(Px, BOARD_BACK_TEMP),	/* 0x50 BOARD_BACK_TEMP */
163 };
164 
165 #define	MCDI_STATIC_SENSOR_ASSERT(_field)				\
166 	EFX_STATIC_ASSERT(MC_CMD_SENSOR_STATE_ ## _field		\
167 			    == EFX_MON_STAT_STATE_ ## _field)
168 
169 static						void
170 mcdi_mon_decode_stats(
171 	__in					efx_nic_t *enp,
172 	__in_bcount(sensor_mask_size)		uint32_t *sensor_mask,
173 	__in					size_t sensor_mask_size,
174 	__in_opt				efsys_mem_t *esmp,
175 	__out_bcount_opt(sensor_mask_size)	uint32_t *stat_maskp,
176 	__inout_ecount_opt(EFX_MON_NSTATS)	efx_mon_stat_value_t *stat)
177 {
178 	efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
179 	uint16_t port_mask;
180 	uint16_t sensor;
181 	size_t sensor_max;
182 	uint32_t stat_mask[(EFX_ARRAY_SIZE(mcdi_sensor_map) + 31) / 32];
183 	uint32_t idx = 0;
184 	uint32_t page = 0;
185 
186 	/* Assert the MC_CMD_SENSOR and EFX_MON_STATE namespaces agree */
187 	MCDI_STATIC_SENSOR_ASSERT(OK);
188 	MCDI_STATIC_SENSOR_ASSERT(WARNING);
189 	MCDI_STATIC_SENSOR_ASSERT(FATAL);
190 	MCDI_STATIC_SENSOR_ASSERT(BROKEN);
191 	MCDI_STATIC_SENSOR_ASSERT(NO_READING);
192 
193 	EFX_STATIC_ASSERT(sizeof (stat_mask[0]) * 8 ==
194 	    EFX_MON_MASK_ELEMENT_SIZE);
195 	sensor_max =
196 	    MIN((8 * sensor_mask_size), EFX_ARRAY_SIZE(mcdi_sensor_map));
197 
198 	EFSYS_ASSERT(emip->emi_port > 0); /* MCDI port number is one-based */
199 	port_mask = MCDI_MON_PORT_MASK(emip);
200 
201 	memset(stat_mask, 0, sizeof (stat_mask));
202 
203 	/*
204 	 * The MCDI sensor readings in the DMA buffer are a packed array of
205 	 * MC_CMD_SENSOR_VALUE_ENTRY structures, which only includes entries for
206 	 * supported sensors (bit set in sensor_mask). The sensor_mask and
207 	 * sensor readings do not include entries for the per-page NEXT_PAGE
208 	 * flag.
209 	 *
210 	 * sensor_mask may legitimately contain MCDI sensors that the driver
211 	 * does not understand.
212 	 */
213 	for (sensor = 0; sensor < sensor_max; ++sensor) {
214 		efx_mon_stat_t id = mcdi_sensor_map[sensor].msm_stat;
215 
216 		if ((sensor % MCDI_MON_PAGE_SIZE) == MC_CMD_SENSOR_PAGE0_NEXT) {
217 			EFSYS_ASSERT3U(id, ==, MCDI_MON_NEXT_PAGE);
218 			page++;
219 			continue;
220 		}
221 		if (~(sensor_mask[page]) & (1U << sensor))
222 			continue;
223 		idx++;
224 
225 		if ((port_mask & mcdi_sensor_map[sensor].msm_port_mask) == 0)
226 			continue;
227 		EFSYS_ASSERT(id < EFX_MON_NSTATS);
228 
229 		/*
230 		 * stat_mask is a bitmask indexed by EFX_MON_* monitor statistic
231 		 * identifiers from efx_mon_stat_t (without NEXT_PAGE bits).
232 		 *
233 		 * If there is an entry in the MCDI sensor to monitor statistic
234 		 * map then the sensor reading is used for the value of the
235 		 * monitor statistic.
236 		 */
237 		stat_mask[id / EFX_MON_MASK_ELEMENT_SIZE] |=
238 		    (1U << (id % EFX_MON_MASK_ELEMENT_SIZE));
239 
240 		if (stat != NULL && esmp != NULL && !EFSYS_MEM_IS_NULL(esmp)) {
241 			efx_dword_t dword;
242 
243 			/* Get MCDI sensor reading from DMA buffer */
244 			EFSYS_MEM_READD(esmp, 4 * (idx - 1), &dword);
245 
246 			/* Update EFX monitor stat from MCDI sensor reading */
247 			stat[id].emsv_value = (uint16_t)EFX_DWORD_FIELD(dword,
248 			    MC_CMD_SENSOR_VALUE_ENTRY_TYPEDEF_VALUE);
249 
250 			stat[id].emsv_state = (uint16_t)EFX_DWORD_FIELD(dword,
251 			    MC_CMD_SENSOR_VALUE_ENTRY_TYPEDEF_STATE);
252 		}
253 	}
254 
255 	if (stat_maskp != NULL) {
256 		memcpy(stat_maskp, stat_mask, sizeof (stat_mask));
257 	}
258 }
259 
260 	__checkReturn			efx_rc_t
261 mcdi_mon_ev(
262 	__in				efx_nic_t *enp,
263 	__in				efx_qword_t *eqp,
264 	__out				efx_mon_stat_t *idp,
265 	__out				efx_mon_stat_value_t *valuep)
266 {
267 	efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
268 	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
269 	uint16_t port_mask;
270 	uint16_t sensor;
271 	uint16_t state;
272 	uint16_t value;
273 	efx_mon_stat_t id;
274 	efx_rc_t rc;
275 
276 	EFSYS_ASSERT(emip->emi_port > 0); /* MCDI port number is one-based */
277 	port_mask = MCDI_MON_PORT_MASK(emip);
278 
279 	sensor = (uint16_t)MCDI_EV_FIELD(eqp, SENSOREVT_MONITOR);
280 	state = (uint16_t)MCDI_EV_FIELD(eqp, SENSOREVT_STATE);
281 	value = (uint16_t)MCDI_EV_FIELD(eqp, SENSOREVT_VALUE);
282 
283 	/* Hardware must support this MCDI sensor */
284 	EFSYS_ASSERT3U(sensor, <, (8 * encp->enc_mcdi_sensor_mask_size));
285 	EFSYS_ASSERT((sensor % MCDI_MON_PAGE_SIZE) != MC_CMD_SENSOR_PAGE0_NEXT);
286 	EFSYS_ASSERT(encp->enc_mcdi_sensor_maskp != NULL);
287 	EFSYS_ASSERT((encp->enc_mcdi_sensor_maskp[sensor / MCDI_MON_PAGE_SIZE] &
288 		(1U << (sensor % MCDI_MON_PAGE_SIZE))) != 0);
289 
290 	/* But we don't have to understand it */
291 	if (sensor >= EFX_ARRAY_SIZE(mcdi_sensor_map)) {
292 		rc = ENOTSUP;
293 		goto fail1;
294 	}
295 	id = mcdi_sensor_map[sensor].msm_stat;
296 	if ((port_mask & mcdi_sensor_map[sensor].msm_port_mask) == 0)
297 		return (ENODEV);
298 	EFSYS_ASSERT(id < EFX_MON_NSTATS);
299 
300 	*idp = id;
301 	valuep->emsv_value = value;
302 	valuep->emsv_state = state;
303 
304 	return (0);
305 
306 fail1:
307 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
308 
309 	return (rc);
310 }
311 
312 
313 static	__checkReturn	efx_rc_t
314 efx_mcdi_read_sensors(
315 	__in		efx_nic_t *enp,
316 	__in		efsys_mem_t *esmp,
317 	__in		uint32_t size)
318 {
319 	efx_mcdi_req_t req;
320 	uint8_t payload[MAX(MC_CMD_READ_SENSORS_EXT_IN_LEN,
321 			    MC_CMD_READ_SENSORS_EXT_OUT_LEN)];
322 	uint32_t addr_lo, addr_hi;
323 
324 	req.emr_cmd = MC_CMD_READ_SENSORS;
325 	req.emr_in_buf = payload;
326 	req.emr_in_length = MC_CMD_READ_SENSORS_EXT_IN_LEN;
327 	req.emr_out_buf = payload;
328 	req.emr_out_length = MC_CMD_READ_SENSORS_EXT_OUT_LEN;
329 
330 	addr_lo = (uint32_t)(EFSYS_MEM_ADDR(esmp) & 0xffffffff);
331 	addr_hi = (uint32_t)(EFSYS_MEM_ADDR(esmp) >> 32);
332 
333 	MCDI_IN_SET_DWORD(req, READ_SENSORS_EXT_IN_DMA_ADDR_LO, addr_lo);
334 	MCDI_IN_SET_DWORD(req, READ_SENSORS_EXT_IN_DMA_ADDR_HI, addr_hi);
335 	MCDI_IN_SET_DWORD(req, READ_SENSORS_EXT_IN_LENGTH, size);
336 
337 	efx_mcdi_execute(enp, &req);
338 
339 	return (req.emr_rc);
340 }
341 
342 static	__checkReturn	efx_rc_t
343 efx_mcdi_sensor_info_npages(
344 	__in		efx_nic_t *enp,
345 	__out		uint32_t *npagesp)
346 {
347 	efx_mcdi_req_t req;
348 	uint8_t payload[MAX(MC_CMD_SENSOR_INFO_EXT_IN_LEN,
349 			    MC_CMD_SENSOR_INFO_OUT_LENMAX)];
350 	int page;
351 	efx_rc_t rc;
352 
353 	EFSYS_ASSERT(npagesp != NULL);
354 
355 	page = 0;
356 	do {
357 		(void) memset(payload, 0, sizeof (payload));
358 		req.emr_cmd = MC_CMD_SENSOR_INFO;
359 		req.emr_in_buf = payload;
360 		req.emr_in_length = MC_CMD_SENSOR_INFO_EXT_IN_LEN;
361 		req.emr_out_buf = payload;
362 		req.emr_out_length = MC_CMD_SENSOR_INFO_OUT_LENMAX;
363 
364 		MCDI_IN_SET_DWORD(req, SENSOR_INFO_EXT_IN_PAGE, page++);
365 
366 		efx_mcdi_execute_quiet(enp, &req);
367 
368 		if (req.emr_rc != 0) {
369 			rc = req.emr_rc;
370 			goto fail1;
371 		}
372 	} while (MCDI_OUT_DWORD(req, SENSOR_INFO_OUT_MASK) &
373 	    (1U << MC_CMD_SENSOR_PAGE0_NEXT));
374 
375 	*npagesp = page;
376 
377 	return (0);
378 
379 fail1:
380 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
381 
382 	return (rc);
383 }
384 
385 static	__checkReturn		efx_rc_t
386 efx_mcdi_sensor_info(
387 	__in			efx_nic_t *enp,
388 	__out_ecount(npages)	uint32_t *sensor_maskp,
389 	__in			size_t npages)
390 {
391 	efx_mcdi_req_t req;
392 	uint8_t payload[MAX(MC_CMD_SENSOR_INFO_EXT_IN_LEN,
393 			    MC_CMD_SENSOR_INFO_OUT_LENMAX)];
394 	uint32_t page;
395 	efx_rc_t rc;
396 
397 	EFSYS_ASSERT(sensor_maskp != NULL);
398 
399 	for (page = 0; page < npages; page++) {
400 		uint32_t mask;
401 
402 		(void) memset(payload, 0, sizeof (payload));
403 		req.emr_cmd = MC_CMD_SENSOR_INFO;
404 		req.emr_in_buf = payload;
405 		req.emr_in_length = MC_CMD_SENSOR_INFO_EXT_IN_LEN;
406 		req.emr_out_buf = payload;
407 		req.emr_out_length = MC_CMD_SENSOR_INFO_OUT_LENMAX;
408 
409 		MCDI_IN_SET_DWORD(req, SENSOR_INFO_EXT_IN_PAGE, page);
410 
411 		efx_mcdi_execute(enp, &req);
412 
413 		if (req.emr_rc != 0) {
414 			rc = req.emr_rc;
415 			goto fail1;
416 		}
417 
418 		mask = MCDI_OUT_DWORD(req, SENSOR_INFO_OUT_MASK);
419 
420 		if ((page != (npages - 1)) &&
421 		    ((mask & (1U << MC_CMD_SENSOR_PAGE0_NEXT)) == 0)) {
422 			rc = EINVAL;
423 			goto fail2;
424 		}
425 		sensor_maskp[page] = mask;
426 	}
427 
428 	if (sensor_maskp[npages - 1] & (1U << MC_CMD_SENSOR_PAGE0_NEXT)) {
429 		rc = EINVAL;
430 		goto fail3;
431 	}
432 
433 	return (0);
434 
435 fail3:
436 	EFSYS_PROBE(fail3);
437 fail2:
438 	EFSYS_PROBE(fail2);
439 fail1:
440 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
441 
442 	return (rc);
443 }
444 
445 	__checkReturn			efx_rc_t
446 mcdi_mon_stats_update(
447 	__in				efx_nic_t *enp,
448 	__in				efsys_mem_t *esmp,
449 	__inout_ecount(EFX_MON_NSTATS)	efx_mon_stat_value_t *values)
450 {
451 	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
452 	uint32_t size = encp->enc_mon_stat_dma_buf_size;
453 	efx_rc_t rc;
454 
455 	if ((rc = efx_mcdi_read_sensors(enp, esmp, size)) != 0)
456 		goto fail1;
457 
458 	EFSYS_DMA_SYNC_FOR_KERNEL(esmp, 0, size);
459 
460 	mcdi_mon_decode_stats(enp,
461 	    encp->enc_mcdi_sensor_maskp,
462 	    encp->enc_mcdi_sensor_mask_size,
463 	    esmp, NULL, values);
464 
465 	return (0);
466 
467 fail1:
468 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
469 
470 	return (rc);
471 }
472 
473 	__checkReturn	efx_rc_t
474 mcdi_mon_cfg_build(
475 	__in		efx_nic_t *enp)
476 {
477 	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
478 	uint32_t npages;
479 	efx_rc_t rc;
480 
481 	switch (enp->en_family) {
482 #if EFSYS_OPT_SIENA
483 	case EFX_FAMILY_SIENA:
484 		encp->enc_mon_type = EFX_MON_SFC90X0;
485 		break;
486 #endif
487 #if EFSYS_OPT_HUNTINGTON
488 	case EFX_FAMILY_HUNTINGTON:
489 		encp->enc_mon_type = EFX_MON_SFC91X0;
490 		break;
491 #endif
492 #if EFSYS_OPT_MEDFORD
493 	case EFX_FAMILY_MEDFORD:
494 		encp->enc_mon_type = EFX_MON_SFC92X0;
495 		break;
496 #endif
497 	default:
498 		rc = EINVAL;
499 		goto fail1;
500 	}
501 
502 	/* Get mc sensor mask size */
503 	npages = 0;
504 	if ((rc = efx_mcdi_sensor_info_npages(enp, &npages)) != 0)
505 		goto fail2;
506 
507 	encp->enc_mon_stat_dma_buf_size	= npages * EFX_MON_STATS_PAGE_SIZE;
508 	encp->enc_mcdi_sensor_mask_size = npages * sizeof (uint32_t);
509 
510 	/* Allocate mc sensor mask */
511 	EFSYS_KMEM_ALLOC(enp->en_esip,
512 	    encp->enc_mcdi_sensor_mask_size,
513 	    encp->enc_mcdi_sensor_maskp);
514 
515 	if (encp->enc_mcdi_sensor_maskp == NULL) {
516 		rc = ENOMEM;
517 		goto fail3;
518 	}
519 
520 	/* Read mc sensor mask */
521 	if ((rc = efx_mcdi_sensor_info(enp,
522 		    encp->enc_mcdi_sensor_maskp,
523 		    npages)) != 0)
524 		goto fail4;
525 
526 	/* Build monitor statistics mask */
527 	mcdi_mon_decode_stats(enp,
528 	    encp->enc_mcdi_sensor_maskp,
529 	    encp->enc_mcdi_sensor_mask_size,
530 	    NULL, encp->enc_mon_stat_mask, NULL);
531 
532 	return (0);
533 
534 fail4:
535 	EFSYS_PROBE(fail4);
536 	EFSYS_KMEM_FREE(enp->en_esip,
537 	    encp->enc_mcdi_sensor_mask_size,
538 	    encp->enc_mcdi_sensor_maskp);
539 
540 fail3:
541 	EFSYS_PROBE(fail3);
542 
543 fail2:
544 	EFSYS_PROBE(fail2);
545 
546 fail1:
547 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
548 
549 	return (rc);
550 }
551 
552 			void
553 mcdi_mon_cfg_free(
554 	__in		efx_nic_t *enp)
555 {
556 	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
557 
558 	if (encp->enc_mcdi_sensor_maskp != NULL) {
559 		EFSYS_KMEM_FREE(enp->en_esip,
560 		    encp->enc_mcdi_sensor_mask_size,
561 		    encp->enc_mcdi_sensor_maskp);
562 	}
563 }
564 
565 
566 #endif	/* EFSYS_OPT_MON_STATS */
567 
568 #endif	/* EFSYS_OPT_MON_MCDI */
569