--- /dev/null	Tue May 17 21:42:49 2016
+++ new/usr/src/uts/common/io/sfxge/common/mcdi_mon.c	Tue May 17 21:42:49 2016
@@ -0,0 +1,562 @@
+/*
+ * Copyright (c) 2009-2015 Solarflare Communications Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are
+ * those of the authors and should not be interpreted as representing official
+ * policies, either expressed or implied, of the FreeBSD Project.
+ */
+
+#include "efx.h"
+#include "efx_impl.h"
+
+#if EFSYS_OPT_MON_MCDI
+
+#if EFSYS_OPT_MON_STATS
+
+#define	MCDI_MON_NEXT_PAGE  (uint16_t)0xfffe
+#define	MCDI_MON_INVALID_SENSOR (uint16_t)0xfffd
+#define	MCDI_MON_PAGE_SIZE 0x20
+
+/* Bitmasks of valid port(s) for each sensor */
+#define	MCDI_MON_PORT_NONE	(0x00)
+#define	MCDI_MON_PORT_P1	(0x01)
+#define	MCDI_MON_PORT_P2	(0x02)
+#define	MCDI_MON_PORT_P3	(0x04)
+#define	MCDI_MON_PORT_P4	(0x08)
+#define	MCDI_MON_PORT_Px	(0xFFFF)
+
+/* Entry for MCDI sensor in sensor map */
+#define	STAT(portmask, stat)	\
+	{ (MCDI_MON_PORT_##portmask), (EFX_MON_STAT_##stat) }
+
+/* Entry for sensor next page flag in sensor map */
+#define	STAT_NEXT_PAGE()	\
+	{ MCDI_MON_PORT_NONE, MCDI_MON_NEXT_PAGE }
+
+/* Placeholder for gaps in the array */
+#define	STAT_NO_SENSOR()	\
+	{ MCDI_MON_PORT_NONE, MCDI_MON_INVALID_SENSOR }
+
+/* Map from MC sensors to monitor statistics */
+static const struct mcdi_sensor_map_s {
+	uint16_t	msm_port_mask;
+	uint16_t	msm_stat;
+} mcdi_sensor_map[] = {
+	/* Sensor page 0		MC_CMD_SENSOR_xxx */
+	STAT(Px, INT_TEMP),		/* 0x00 CONTROLLER_TEMP */
+	STAT(Px, EXT_TEMP),		/* 0x01 PHY_COMMON_TEMP */
+	STAT(Px, INT_COOLING),		/* 0x02 CONTROLLER_COOLING */
+	STAT(P1, EXT_TEMP),		/* 0x03 PHY0_TEMP */
+	STAT(P1, EXT_COOLING),		/* 0x04 PHY0_COOLING */
+	STAT(P2, EXT_TEMP),		/* 0x05 PHY1_TEMP */
+	STAT(P2, EXT_COOLING),		/* 0x06 PHY1_COOLING */
+	STAT(Px, 1V),			/* 0x07 IN_1V0 */
+	STAT(Px, 1_2V),			/* 0x08 IN_1V2 */
+	STAT(Px, 1_8V),			/* 0x09 IN_1V8 */
+	STAT(Px, 2_5V),			/* 0x0a IN_2V5 */
+	STAT(Px, 3_3V),			/* 0x0b IN_3V3 */
+	STAT(Px, 12V),			/* 0x0c IN_12V0 */
+	STAT(Px, 1_2VA),		/* 0x0d IN_1V2A */
+	STAT(Px, VREF),			/* 0x0e IN_VREF */
+	STAT(Px, VAOE),			/* 0x0f OUT_VAOE */
+	STAT(Px, AOE_TEMP),		/* 0x10 AOE_TEMP */
+	STAT(Px, PSU_AOE_TEMP),		/* 0x11 PSU_AOE_TEMP */
+	STAT(Px, PSU_TEMP),		/* 0x12 PSU_TEMP */
+	STAT(Px, FAN0),			/* 0x13 FAN_0 */
+	STAT(Px, FAN1),			/* 0x14 FAN_1 */
+	STAT(Px, FAN2),			/* 0x15 FAN_2 */
+	STAT(Px, FAN3),			/* 0x16 FAN_3 */
+	STAT(Px, FAN4),			/* 0x17 FAN_4 */
+	STAT(Px, VAOE_IN),		/* 0x18 IN_VAOE */
+	STAT(Px, IAOE),			/* 0x19 OUT_IAOE */
+	STAT(Px, IAOE_IN),		/* 0x1a IN_IAOE */
+	STAT(Px, NIC_POWER),		/* 0x1b NIC_POWER */
+	STAT(Px, 0_9V),			/* 0x1c IN_0V9 */
+	STAT(Px, I0_9V),		/* 0x1d IN_I0V9 */
+	STAT(Px, I1_2V),		/* 0x1e IN_I1V2 */
+	STAT_NEXT_PAGE(),		/* 0x1f Next page flag (not a sensor) */
+
+	/* Sensor page 1		MC_CMD_SENSOR_xxx */
+	STAT(Px, 0_9V_ADC),		/* 0x20 IN_0V9_ADC */
+	STAT(Px, INT_TEMP2),		/* 0x21 CONTROLLER_2_TEMP */
+	STAT(Px, VREG_TEMP),		/* 0x22 VREG_INTERNAL_TEMP */
+	STAT(Px, VREG_0_9V_TEMP),	/* 0x23 VREG_0V9_TEMP */
+	STAT(Px, VREG_1_2V_TEMP),	/* 0x24 VREG_1V2_TEMP */
+	STAT(Px, INT_VPTAT),		/* 0x25 CTRLR. VPTAT */
+	STAT(Px, INT_ADC_TEMP),		/* 0x26 CTRLR. INTERNAL_TEMP */
+	STAT(Px, EXT_VPTAT),		/* 0x27 CTRLR. VPTAT_EXTADC */
+	STAT(Px, EXT_ADC_TEMP),		/* 0x28 CTRLR. INTERNAL_TEMP_EXTADC */
+	STAT(Px, AMBIENT_TEMP),		/* 0x29 AMBIENT_TEMP */
+	STAT(Px, AIRFLOW),		/* 0x2a AIRFLOW */
+	STAT(Px, VDD08D_VSS08D_CSR),	/* 0x2b VDD08D_VSS08D_CSR */
+	STAT(Px, VDD08D_VSS08D_CSR_EXTADC), /* 0x2c VDD08D_VSS08D_CSR_EXTADC */
+	STAT(Px, HOTPOINT_TEMP),	/* 0x2d HOTPOINT_TEMP */
+	STAT(P1, PHY_POWER_SWITCH_PORT0),   /* 0x2e PHY_POWER_SWITCH_PORT0 */
+	STAT(P2, PHY_POWER_SWITCH_PORT1),   /* 0x2f PHY_POWER_SWITCH_PORT1 */
+	STAT(Px, MUM_VCC),		/* 0x30 MUM_VCC */
+	STAT(Px, 0V9_A),		/* 0x31 0V9_A */
+	STAT(Px, I0V9_A),		/* 0x32 I0V9_A */
+	STAT(Px, 0V9_A_TEMP),		/* 0x33 0V9_A_TEMP */
+	STAT(Px, 0V9_B),		/* 0x34 0V9_B */
+	STAT(Px, I0V9_B),		/* 0x35 I0V9_B */
+	STAT(Px, 0V9_B_TEMP),		/* 0x36 0V9_B_TEMP */
+	STAT(Px, CCOM_AVREG_1V2_SUPPLY),  /* 0x37 CCOM_AVREG_1V2_SUPPLY */
+	STAT(Px, CCOM_AVREG_1V2_SUPPLY_EXT_ADC),
+					/* 0x38 CCOM_AVREG_1V2_SUPPLY_EXT_ADC */
+	STAT(Px, CCOM_AVREG_1V8_SUPPLY),  /* 0x39 CCOM_AVREG_1V8_SUPPLY */
+	STAT(Px, CCOM_AVREG_1V8_SUPPLY_EXT_ADC),
+					/* 0x3a CCOM_AVREG_1V8_SUPPLY_EXT_ADC */
+	STAT_NO_SENSOR(),		/* 0x3b (no sensor) */
+	STAT_NO_SENSOR(),		/* 0x3c (no sensor) */
+	STAT_NO_SENSOR(),		/* 0x3d (no sensor) */
+	STAT_NO_SENSOR(),		/* 0x3e (no sensor) */
+	STAT_NEXT_PAGE(),		/* 0x3f Next page flag (not a sensor) */
+
+	/* Sensor page 2		MC_CMD_SENSOR_xxx */
+	STAT(Px, CONTROLLER_MASTER_VPTAT),	   /* 0x40 MASTER_VPTAT */
+	STAT(Px, CONTROLLER_MASTER_INTERNAL_TEMP), /* 0x41 MASTER_INT_TEMP */
+	STAT(Px, CONTROLLER_MASTER_VPTAT_EXT_ADC), /* 0x42 MAST_VPTAT_EXT_ADC */
+	STAT(Px, CONTROLLER_MASTER_INTERNAL_TEMP_EXT_ADC),
+					/* 0x43 MASTER_INTERNAL_TEMP_EXT_ADC */
+	STAT(Px, CONTROLLER_SLAVE_VPTAT),	  /* 0x44 SLAVE_VPTAT */
+	STAT(Px, CONTROLLER_SLAVE_INTERNAL_TEMP), /* 0x45 SLAVE_INTERNAL_TEMP */
+	STAT(Px, CONTROLLER_SLAVE_VPTAT_EXT_ADC), /* 0x46 SLAVE_VPTAT_EXT_ADC */
+	STAT(Px, CONTROLLER_SLAVE_INTERNAL_TEMP_EXT_ADC),
+					/* 0x47 SLAVE_INTERNAL_TEMP_EXT_ADC */
+	STAT_NO_SENSOR(),		/* 0x48 (no sensor) */
+	STAT(Px, SODIMM_VOUT),		/* 0x49 SODIMM_VOUT */
+	STAT(Px, SODIMM_0_TEMP),	/* 0x4a SODIMM_0_TEMP */
+	STAT(Px, SODIMM_1_TEMP),	/* 0x4b SODIMM_1_TEMP */
+	STAT(Px, PHY0_VCC),		/* 0x4c PHY0_VCC */
+	STAT(Px, PHY1_VCC),		/* 0x4d PHY1_VCC */
+	STAT(Px, CONTROLLER_TDIODE_TEMP), /* 0x4e CONTROLLER_TDIODE_TEMP */
+	STAT(Px, BOARD_FRONT_TEMP), 	/* 0x4f BOARD_FRONT_TEMP */
+	STAT(Px, BOARD_BACK_TEMP), 	/* 0x50 BOARD_BACK_TEMP */
+};
+
+#define	MCDI_STATIC_SENSOR_ASSERT(_field)				\
+	EFX_STATIC_ASSERT(MC_CMD_SENSOR_STATE_ ## _field		\
+			    == EFX_MON_STAT_STATE_ ## _field)
+
+static						void
+mcdi_mon_decode_stats(
+	__in					efx_nic_t *enp,
+	__in_ecount(sensor_mask_size)		uint32_t *sensor_mask,
+	__in					size_t sensor_mask_size,
+	__in_opt				efsys_mem_t *esmp,
+	__out_ecount_opt(sensor_mask_size)	uint32_t *stat_maskp,
+	__inout_ecount_opt(EFX_MON_NSTATS)	efx_mon_stat_value_t *stat)
+{
+	efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+	uint16_t port_mask;
+	uint16_t sensor;
+	size_t sensor_max;
+	uint32_t stat_mask[(EFX_ARRAY_SIZE(mcdi_sensor_map) + 31) / 32];
+	uint32_t idx = 0;
+	uint32_t page = 0;
+
+	/* Assert the MC_CMD_SENSOR and EFX_MON_STATE namespaces agree */
+	MCDI_STATIC_SENSOR_ASSERT(OK);
+	MCDI_STATIC_SENSOR_ASSERT(WARNING);
+	MCDI_STATIC_SENSOR_ASSERT(FATAL);
+	MCDI_STATIC_SENSOR_ASSERT(BROKEN);
+	MCDI_STATIC_SENSOR_ASSERT(NO_READING);
+
+	EFX_STATIC_ASSERT(sizeof (stat_mask[0]) * 8 ==
+	    EFX_MON_MASK_ELEMENT_SIZE);
+	sensor_max =
+	    MIN((8 * sensor_mask_size), EFX_ARRAY_SIZE(mcdi_sensor_map));
+
+	port_mask = 1U << emip->emi_port;
+
+	(void) memset(stat_mask, 0, sizeof (stat_mask));
+
+	/*
+	 * The MCDI sensor readings in the DMA buffer are a packed array of
+	 * MC_CMD_SENSOR_VALUE_ENTRY structures, which only includes entries for
+	 * supported sensors (bit set in sensor_mask). The sensor_mask and
+	 * sensor readings do not include entries for the per-page NEXT_PAGE
+	 * flag.
+	 *
+	 * sensor_mask may legitimately contain MCDI sensors that the driver
+	 * does not understand.
+	 */
+	for (sensor = 0; sensor < sensor_max; ++sensor) {
+		efx_mon_stat_t id = mcdi_sensor_map[sensor].msm_stat;
+
+		if ((sensor % MCDI_MON_PAGE_SIZE) == MC_CMD_SENSOR_PAGE0_NEXT) {
+			EFSYS_ASSERT3U(id, ==, MCDI_MON_NEXT_PAGE);
+			page++;
+			continue;
+		}
+		if (~(sensor_mask[page]) & (1U << sensor))
+			continue;
+		idx++;
+
+		if ((port_mask & mcdi_sensor_map[sensor].msm_port_mask) == 0)
+			continue;
+		EFSYS_ASSERT(id < EFX_MON_NSTATS);
+
+		/*
+		 * stat_mask is a bitmask indexed by EFX_MON_* monitor statistic
+		 * identifiers from efx_mon_stat_t (without NEXT_PAGE bits).
+		 *
+		 * If there is an entry in the MCDI sensor to monitor statistic
+		 * map then the sensor reading is used for the value of the
+		 * monitor statistic.
+		 */
+		stat_mask[id / EFX_MON_MASK_ELEMENT_SIZE] |=
+		    (1U << (id % EFX_MON_MASK_ELEMENT_SIZE));
+
+		if (stat != NULL && esmp != NULL && !EFSYS_MEM_IS_NULL(esmp)) {
+			efx_dword_t dword;
+
+			/* Get MCDI sensor reading from DMA buffer */
+			EFSYS_MEM_READD(esmp, 4 * (idx - 1), &dword);
+
+			/* Update EFX monitor stat from MCDI sensor reading */
+			stat[id].emsv_value = (uint16_t)EFX_DWORD_FIELD(dword,
+			    MC_CMD_SENSOR_VALUE_ENTRY_TYPEDEF_VALUE);
+
+			stat[id].emsv_state = (uint16_t)EFX_DWORD_FIELD(dword,
+			    MC_CMD_SENSOR_VALUE_ENTRY_TYPEDEF_STATE);
+		}
+	}
+
+	if (stat_maskp != NULL) {
+		(void) memcpy(stat_maskp, stat_mask, sizeof (stat_mask));
+	}
+}
+
+	__checkReturn			efx_rc_t
+mcdi_mon_ev(
+	__in				efx_nic_t *enp,
+	__in				efx_qword_t *eqp,
+	__out				efx_mon_stat_t *idp,
+	__out				efx_mon_stat_value_t *valuep)
+{
+	efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
+	uint16_t port_mask;
+	uint16_t sensor;
+	uint16_t state;
+	uint16_t value;
+	efx_mon_stat_t id;
+	efx_rc_t rc;
+
+	port_mask = (emip->emi_port == 1)
+	    ? MCDI_MON_PORT_P1
+	    : MCDI_MON_PORT_P2;
+
+	sensor = (uint16_t)MCDI_EV_FIELD(eqp, SENSOREVT_MONITOR);
+	state = (uint16_t)MCDI_EV_FIELD(eqp, SENSOREVT_STATE);
+	value = (uint16_t)MCDI_EV_FIELD(eqp, SENSOREVT_VALUE);
+
+	/* Hardware must support this MCDI sensor */
+	EFSYS_ASSERT3U(sensor, <, (8 * encp->enc_mcdi_sensor_mask_size));
+	EFSYS_ASSERT((sensor % MCDI_MON_PAGE_SIZE) != MC_CMD_SENSOR_PAGE0_NEXT);
+	EFSYS_ASSERT(encp->enc_mcdi_sensor_maskp != NULL);
+	EFSYS_ASSERT((encp->enc_mcdi_sensor_maskp[sensor / MCDI_MON_PAGE_SIZE] &
+		(1U << (sensor % MCDI_MON_PAGE_SIZE))) != 0);
+
+	/* But we don't have to understand it */
+	if (sensor >= EFX_ARRAY_SIZE(mcdi_sensor_map)) {
+		rc = ENOTSUP;
+		goto fail1;
+	}
+	id = mcdi_sensor_map[sensor].msm_stat;
+	if ((port_mask & mcdi_sensor_map[sensor].msm_port_mask) == 0)
+		return (ENODEV);
+	EFSYS_ASSERT(id < EFX_MON_NSTATS);
+
+	*idp = id;
+	valuep->emsv_value = value;
+	valuep->emsv_state = state;
+
+	return (0);
+
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
+
+static	__checkReturn	efx_rc_t
+efx_mcdi_read_sensors(
+	__in		efx_nic_t *enp,
+	__in		efsys_mem_t *esmp,
+	__in		uint32_t size)
+{
+	efx_mcdi_req_t req;
+	uint8_t payload[MAX(MC_CMD_READ_SENSORS_EXT_IN_LEN,
+			    MC_CMD_READ_SENSORS_EXT_OUT_LEN)];
+	uint32_t addr_lo, addr_hi;
+
+	req.emr_cmd = MC_CMD_READ_SENSORS;
+	req.emr_in_buf = payload;
+	req.emr_in_length = MC_CMD_READ_SENSORS_EXT_IN_LEN;
+	req.emr_out_buf = payload;
+	req.emr_out_length = MC_CMD_READ_SENSORS_EXT_OUT_LEN;
+
+	addr_lo = (uint32_t)(EFSYS_MEM_ADDR(esmp) & 0xffffffff);
+	addr_hi = (uint32_t)(EFSYS_MEM_ADDR(esmp) >> 32);
+
+	MCDI_IN_SET_DWORD(req, READ_SENSORS_EXT_IN_DMA_ADDR_LO, addr_lo);
+	MCDI_IN_SET_DWORD(req, READ_SENSORS_EXT_IN_DMA_ADDR_HI, addr_hi);
+	MCDI_IN_SET_DWORD(req, READ_SENSORS_EXT_IN_LENGTH, size);
+
+	efx_mcdi_execute(enp, &req);
+
+	return (req.emr_rc);
+}
+
+static	__checkReturn	efx_rc_t
+efx_mcdi_sensor_info_npages(
+	__in		efx_nic_t *enp,
+	__out		uint32_t *npagesp)
+{
+	efx_mcdi_req_t req;
+	uint8_t payload[MAX(MC_CMD_SENSOR_INFO_EXT_IN_LEN,
+			    MC_CMD_SENSOR_INFO_OUT_LENMAX)];
+	int page;
+	efx_rc_t rc;
+
+	EFSYS_ASSERT(npagesp != NULL);
+
+	page = 0;
+	do {
+		(void) memset(payload, 0, sizeof (payload));
+		req.emr_cmd = MC_CMD_SENSOR_INFO;
+		req.emr_in_buf = payload;
+		req.emr_in_length = MC_CMD_SENSOR_INFO_EXT_IN_LEN;
+		req.emr_out_buf = payload;
+		req.emr_out_length = MC_CMD_SENSOR_INFO_OUT_LENMAX;
+
+		MCDI_IN_SET_DWORD(req, SENSOR_INFO_EXT_IN_PAGE, page++);
+
+		efx_mcdi_execute_quiet(enp, &req);
+
+		if (req.emr_rc != 0) {
+			rc = req.emr_rc;
+			goto fail1;
+		}
+	} while (MCDI_OUT_DWORD(req, SENSOR_INFO_OUT_MASK) &
+	    (1U << MC_CMD_SENSOR_PAGE0_NEXT));
+
+	*npagesp = page;
+
+	return (0);
+
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
+static	__checkReturn		efx_rc_t
+efx_mcdi_sensor_info(
+	__in			efx_nic_t *enp,
+	__out_ecount(npages)	uint32_t *sensor_maskp,
+	__in			size_t npages)
+{
+	efx_mcdi_req_t req;
+	uint8_t payload[MAX(MC_CMD_SENSOR_INFO_EXT_IN_LEN,
+			    MC_CMD_SENSOR_INFO_OUT_LENMAX)];
+	uint32_t page;
+	efx_rc_t rc;
+
+	EFSYS_ASSERT(sensor_maskp != NULL);
+
+	for (page = 0; page < npages; page++) {
+		uint32_t mask;
+
+		(void) memset(payload, 0, sizeof (payload));
+		req.emr_cmd = MC_CMD_SENSOR_INFO;
+		req.emr_in_buf = payload;
+		req.emr_in_length = MC_CMD_SENSOR_INFO_EXT_IN_LEN;
+		req.emr_out_buf = payload;
+		req.emr_out_length = MC_CMD_SENSOR_INFO_OUT_LENMAX;
+
+		MCDI_IN_SET_DWORD(req, SENSOR_INFO_EXT_IN_PAGE, page);
+
+		efx_mcdi_execute(enp, &req);
+
+		if (req.emr_rc != 0) {
+			rc = req.emr_rc;
+			goto fail1;
+		}
+
+		mask = MCDI_OUT_DWORD(req, SENSOR_INFO_OUT_MASK);
+
+		if ((page != (npages - 1)) &&
+		    ((mask & (1U << MC_CMD_SENSOR_PAGE0_NEXT)) == 0)) {
+			rc = EINVAL;
+			goto fail2;
+		}
+		sensor_maskp[page] = mask;
+	}
+
+	if (sensor_maskp[npages - 1] & (1U << MC_CMD_SENSOR_PAGE0_NEXT)) {
+		rc = EINVAL;
+		goto fail3;
+	}
+
+	return (0);
+
+fail3:
+	EFSYS_PROBE(fail3);
+fail2:
+	EFSYS_PROBE(fail2);
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
+	__checkReturn			efx_rc_t
+mcdi_mon_stats_update(
+	__in				efx_nic_t *enp,
+	__in				efsys_mem_t *esmp,
+	__inout_ecount(EFX_MON_NSTATS)	efx_mon_stat_value_t *values)
+{
+	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
+	uint32_t size = encp->enc_mon_stat_dma_buf_size;
+	efx_rc_t rc;
+
+	if ((rc = efx_mcdi_read_sensors(enp, esmp, size)) != 0)
+		goto fail1;
+
+	EFSYS_DMA_SYNC_FOR_KERNEL(esmp, 0, size);
+
+	mcdi_mon_decode_stats(enp,
+	    encp->enc_mcdi_sensor_maskp,
+	    encp->enc_mcdi_sensor_mask_size,
+	    esmp, NULL, values);
+
+	return (0);
+
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
+	__checkReturn	efx_rc_t
+mcdi_mon_cfg_build(
+	__in		efx_nic_t *enp)
+{
+	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
+	uint32_t npages;
+	efx_rc_t rc;
+
+	switch (enp->en_family) {
+#if EFSYS_OPT_SIENA
+	case EFX_FAMILY_SIENA:
+		encp->enc_mon_type = EFX_MON_SFC90X0;
+		break;
+#endif
+#if EFSYS_OPT_HUNTINGTON
+	case EFX_FAMILY_HUNTINGTON:
+		encp->enc_mon_type = EFX_MON_SFC91X0;
+		break;
+#endif
+#if EFSYS_OPT_MEDFORD
+	case EFX_FAMILY_MEDFORD:
+		encp->enc_mon_type = EFX_MON_SFC92X0;
+		break;
+#endif
+	default:
+		rc = EINVAL;
+		goto fail1;
+	}
+
+	/* Get mc sensor mask size */
+	npages = 0;
+	if ((rc = efx_mcdi_sensor_info_npages(enp, &npages)) != 0)
+		goto fail2;
+
+	encp->enc_mon_stat_dma_buf_size	= npages * EFX_MON_STATS_PAGE_SIZE;
+	encp->enc_mcdi_sensor_mask_size = npages * sizeof (uint32_t);
+
+	/* Allocate mc sensor mask */
+	EFSYS_KMEM_ALLOC(enp->en_esip,
+	    encp->enc_mcdi_sensor_mask_size,
+	    encp->enc_mcdi_sensor_maskp);
+
+	if (encp->enc_mcdi_sensor_maskp == NULL) {
+		rc = ENOMEM;
+		goto fail3;
+	}
+
+	/* Read mc sensor mask */
+	if ((rc = efx_mcdi_sensor_info(enp,
+		    encp->enc_mcdi_sensor_maskp,
+		    npages)) != 0)
+		goto fail4;
+
+	/* Build monitor statistics mask */
+	mcdi_mon_decode_stats(enp,
+	    encp->enc_mcdi_sensor_maskp,
+	    encp->enc_mcdi_sensor_mask_size,
+	    NULL, encp->enc_mon_stat_mask, NULL);
+
+	return (0);
+
+fail4:
+	EFSYS_PROBE(fail4);
+	EFSYS_KMEM_FREE(enp->en_esip,
+	    encp->enc_mcdi_sensor_mask_size,
+	    encp->enc_mcdi_sensor_maskp);
+
+fail3:
+	EFSYS_PROBE(fail3);
+
+fail2:
+	EFSYS_PROBE(fail2);
+
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
+			void
+mcdi_mon_cfg_free(
+	__in		efx_nic_t *enp)
+{
+	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
+
+	if (encp->enc_mcdi_sensor_maskp != NULL) {
+		EFSYS_KMEM_FREE(enp->en_esip,
+		    encp->enc_mcdi_sensor_mask_size,
+		    encp->enc_mcdi_sensor_maskp);
+	}
+}
+
+
+#endif	/* EFSYS_OPT_MON_STATS */
+
+#endif	/* EFSYS_OPT_MON_MCDI */
