diff --git a/drivers/net/ethernet/meta/fbnic/Makefile b/drivers/net/ethernet/meta/fbnic/Makefile
index ea6214ca48e70..239b2258ec658 100644
--- a/drivers/net/ethernet/meta/fbnic/Makefile
+++ b/drivers/net/ethernet/meta/fbnic/Makefile
@@ -13,6 +13,7 @@ fbnic-y := fbnic_csr.o \
 	   fbnic_ethtool.o \
 	   fbnic_fw.o \
 	   fbnic_hw_stats.o \
+	   fbnic_hwmon.o \
 	   fbnic_irq.o \
 	   fbnic_mac.o \
 	   fbnic_netdev.o \
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic.h b/drivers/net/ethernet/meta/fbnic/fbnic.h
index 50f97f5399ff5..14751f16e1252 100644
--- a/drivers/net/ethernet/meta/fbnic/fbnic.h
+++ b/drivers/net/ethernet/meta/fbnic/fbnic.h
@@ -24,6 +24,7 @@ struct fbnic_dev {
 	struct device *dev;
 	struct net_device *netdev;
 	struct dentry *dbg_fbd;
+	struct device *hwmon;
 
 	u32 __iomem *uc_addr0;
 	u32 __iomem *uc_addr4;
@@ -41,6 +42,7 @@ struct fbnic_dev {
 
 	struct fbnic_fw_mbx mbx[FBNIC_IPC_MBX_INDICES];
 	struct fbnic_fw_cap fw_cap;
+	struct fbnic_fw_completion *cmpl_data;
 	/* Lock protecting Tx Mailbox queue to prevent possible races */
 	spinlock_t fw_tx_lock;
 
@@ -149,6 +151,9 @@ void fbnic_devlink_unregister(struct fbnic_dev *fbd);
 int fbnic_fw_enable_mbx(struct fbnic_dev *fbd);
 void fbnic_fw_disable_mbx(struct fbnic_dev *fbd);
 
+void fbnic_hwmon_register(struct fbnic_dev *fbd);
+void fbnic_hwmon_unregister(struct fbnic_dev *fbd);
+
 int fbnic_pcs_irq_enable(struct fbnic_dev *fbd);
 void fbnic_pcs_irq_disable(struct fbnic_dev *fbd);
 
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_fw.c b/drivers/net/ethernet/meta/fbnic/fbnic_fw.c
index 8f7a2a19ddf80..bbc7c1c0c37ef 100644
--- a/drivers/net/ethernet/meta/fbnic/fbnic_fw.c
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_fw.c
@@ -228,6 +228,63 @@ static void fbnic_mbx_process_tx_msgs(struct fbnic_dev *fbd)
 	tx_mbx->head = head;
 }
 
+static int fbnic_mbx_map_req_w_cmpl(struct fbnic_dev *fbd,
+				    struct fbnic_tlv_msg *msg,
+				    struct fbnic_fw_completion *cmpl_data)
+{
+	unsigned long flags;
+	int err;
+
+	spin_lock_irqsave(&fbd->fw_tx_lock, flags);
+
+	/* If we are already waiting on a completion then abort */
+	if (cmpl_data && fbd->cmpl_data) {
+		err = -EBUSY;
+		goto unlock_mbx;
+	}
+
+	/* Record completion location and submit request */
+	if (cmpl_data)
+		fbd->cmpl_data = cmpl_data;
+
+	err = fbnic_mbx_map_msg(fbd, FBNIC_IPC_MBX_TX_IDX, msg,
+				le16_to_cpu(msg->hdr.len) * sizeof(u32), 1);
+
+	/* If msg failed then clear completion data for next caller */
+	if (err && cmpl_data)
+		fbd->cmpl_data = NULL;
+
+unlock_mbx:
+	spin_unlock_irqrestore(&fbd->fw_tx_lock, flags);
+
+	return err;
+}
+
+static void fbnic_fw_release_cmpl_data(struct kref *kref)
+{
+	struct fbnic_fw_completion *cmpl_data;
+
+	cmpl_data = container_of(kref, struct fbnic_fw_completion,
+				 ref_count);
+	kfree(cmpl_data);
+}
+
+static struct fbnic_fw_completion *
+fbnic_fw_get_cmpl_by_type(struct fbnic_dev *fbd, u32 msg_type)
+{
+	struct fbnic_fw_completion *cmpl_data = NULL;
+	unsigned long flags;
+
+	spin_lock_irqsave(&fbd->fw_tx_lock, flags);
+	if (fbd->cmpl_data && fbd->cmpl_data->msg_type == msg_type) {
+		cmpl_data = fbd->cmpl_data;
+		kref_get(&fbd->cmpl_data->ref_count);
+	}
+	spin_unlock_irqrestore(&fbd->fw_tx_lock, flags);
+
+	return cmpl_data;
+}
+
 /**
  * fbnic_fw_xmit_simple_msg - Transmit a simple single TLV message w/o data
  * @fbd: FBNIC device structure
@@ -651,6 +708,84 @@ void fbnic_fw_check_heartbeat(struct fbnic_dev *fbd)
 		dev_warn(fbd->dev, "Failed to send heartbeat message\n");
 }
 
+/**
+ * fbnic_fw_xmit_tsene_read_msg - Create and transmit a sensor read request
+ * @fbd: FBNIC device structure
+ * @cmpl_data: Completion data structure to store sensor response
+ *
+ * Asks the firmware to provide an update with the latest sensor data.
+ * The response will contain temperature and voltage readings.
+ *
+ * Return: 0 on success, negative error value on failure
+ */
+int fbnic_fw_xmit_tsene_read_msg(struct fbnic_dev *fbd,
+				 struct fbnic_fw_completion *cmpl_data)
+{
+	struct fbnic_tlv_msg *msg;
+	int err;
+
+	if (!fbnic_fw_present(fbd))
+		return -ENODEV;
+
+	msg = fbnic_tlv_msg_alloc(FBNIC_TLV_MSG_ID_TSENE_READ_REQ);
+	if (!msg)
+		return -ENOMEM;
+
+	err = fbnic_mbx_map_req_w_cmpl(fbd, msg, cmpl_data);
+	if (err)
+		goto free_message;
+
+	return 0;
+
+free_message:
+	free_page((unsigned long)msg);
+	return err;
+}
+
+static const struct fbnic_tlv_index fbnic_tsene_read_resp_index[] = {
+	FBNIC_TLV_ATTR_S32(FBNIC_TSENE_THERM),
+	FBNIC_TLV_ATTR_S32(FBNIC_TSENE_VOLT),
+	FBNIC_TLV_ATTR_S32(FBNIC_TSENE_ERROR),
+	FBNIC_TLV_ATTR_LAST
+};
+
+static int fbnic_fw_parse_tsene_read_resp(void *opaque,
+					  struct fbnic_tlv_msg **results)
+{
+	struct fbnic_fw_completion *cmpl_data;
+	struct fbnic_dev *fbd = opaque;
+	int err = 0;
+
+	/* Verify we have a completion pointer to provide with data */
+	cmpl_data = fbnic_fw_get_cmpl_by_type(fbd,
+					      FBNIC_TLV_MSG_ID_TSENE_READ_RESP);
+	if (!cmpl_data)
+		return -EINVAL;
+
+	if (results[FBNIC_TSENE_ERROR]) {
+		err = fbnic_tlv_attr_get_unsigned(results[FBNIC_TSENE_ERROR]);
+		if (err)
+			goto exit_complete;
+	}
+
+	if (!results[FBNIC_TSENE_THERM] || !results[FBNIC_TSENE_VOLT]) {
+		err = -EINVAL;
+		goto exit_complete;
+	}
+
+	cmpl_data->u.tsene.millidegrees =
+		fbnic_tlv_attr_get_signed(results[FBNIC_TSENE_THERM]);
+	cmpl_data->u.tsene.millivolts =
+		fbnic_tlv_attr_get_signed(results[FBNIC_TSENE_VOLT]);
+
+exit_complete:
+	cmpl_data->result = err;
+	complete(&cmpl_data->done);
+	fbnic_fw_put_cmpl(cmpl_data);
+
+	return err;
+}
+
 static const struct fbnic_tlv_parser fbnic_fw_tlv_parser[] = {
 	FBNIC_TLV_PARSER(FW_CAP_RESP, fbnic_fw_cap_resp_index,
 			 fbnic_fw_parse_cap_resp),
@@ -658,6 +793,9 @@ static const struct fbnic_tlv_parser fbnic_fw_tlv_parser[] = {
 			 fbnic_fw_parse_ownership_resp),
 	FBNIC_TLV_PARSER(HEARTBEAT_RESP, fbnic_heartbeat_resp_index,
 			 fbnic_fw_parse_heartbeat_resp),
+	FBNIC_TLV_PARSER(TSENE_READ_RESP,
+			 fbnic_tsene_read_resp_index,
+			 fbnic_fw_parse_tsene_read_resp),
 	FBNIC_TLV_MSG_ERROR
 };
 
@@ -802,3 +940,25 @@ void fbnic_get_fw_ver_commit_str(struct fbnic_dev *fbd, char *fw_version,
 	fbnic_mk_full_fw_ver_str(mgmt->version, delim, mgmt->commit,
 				 fw_version, str_sz);
 }
+
+void fbnic_fw_init_cmpl(struct fbnic_fw_completion *fw_cmpl,
+			u32 msg_type)
+{
+	fw_cmpl->msg_type = msg_type;
+	init_completion(&fw_cmpl->done);
+	kref_init(&fw_cmpl->ref_count);
+}
+
+void fbnic_fw_clear_compl(struct fbnic_dev *fbd)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&fbd->fw_tx_lock, flags);
+	fbd->cmpl_data = NULL;
+	spin_unlock_irqrestore(&fbd->fw_tx_lock, flags);
+}
+
+void fbnic_fw_put_cmpl(struct fbnic_fw_completion *fw_cmpl)
+{
+	kref_put(&fw_cmpl->ref_count, fbnic_fw_release_cmpl_data);
+}
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_fw.h b/drivers/net/ethernet/meta/fbnic/fbnic_fw.h
index 221faf8c67566..fe68333d51b18 100644
--- a/drivers/net/ethernet/meta/fbnic/fbnic_fw.h
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_fw.h
@@ -44,6 +44,19 @@ struct fbnic_fw_cap {
 	u8	link_fec;
 };
 
+struct fbnic_fw_completion {
+	u32 msg_type;
+	struct completion done;
+	struct kref ref_count;
+	int result;
+	union {
+		struct {
+			s32 millivolts;
+			s32 millidegrees;
+		} tsene;
+	} u;
+};
+
 void fbnic_mbx_init(struct fbnic_dev *fbd);
 void fbnic_mbx_clean(struct fbnic_dev *fbd);
 void fbnic_mbx_poll(struct fbnic_dev *fbd);
@@ -52,6 +65,12 @@ void fbnic_mbx_flush_tx(struct fbnic_dev *fbd);
 int fbnic_fw_xmit_ownership_msg(struct fbnic_dev *fbd, bool take_ownership);
 int fbnic_fw_init_heartbeat(struct fbnic_dev *fbd, bool poll);
 void fbnic_fw_check_heartbeat(struct fbnic_dev *fbd);
+int fbnic_fw_xmit_tsene_read_msg(struct fbnic_dev *fbd,
+				 struct fbnic_fw_completion *cmpl_data);
+void fbnic_fw_init_cmpl(struct fbnic_fw_completion *cmpl_data,
+			u32 msg_type);
+void fbnic_fw_clear_compl(struct fbnic_dev *fbd);
+void fbnic_fw_put_cmpl(struct fbnic_fw_completion *cmpl_data);
 
 #define fbnic_mk_full_fw_ver_str(_rev_id, _delim, _commit, _str, _str_sz) \
 do {									\
@@ -76,6 +95,8 @@ enum {
 	FBNIC_TLV_MSG_ID_OWNERSHIP_RESP			= 0x13,
 	FBNIC_TLV_MSG_ID_HEARTBEAT_REQ			= 0x14,
 	FBNIC_TLV_MSG_ID_HEARTBEAT_RESP			= 0x15,
+	FBNIC_TLV_MSG_ID_TSENE_READ_REQ			= 0x3C,
+	FBNIC_TLV_MSG_ID_TSENE_READ_RESP		= 0x3D,
 };
 
 #define FBNIC_FW_CAP_RESP_VERSION_MAJOR		CSR_GENMASK(31, 24)
@@ -117,6 +138,13 @@ enum {
 	FBNIC_FW_LINK_FEC_BASER			= 3,
 };
 
+enum {
+	FBNIC_TSENE_THERM			= 0x0,
+	FBNIC_TSENE_VOLT			= 0x1,
+	FBNIC_TSENE_ERROR			= 0x2,
+	FBNIC_TSENE_MSG_MAX
+};
+
 enum {
 	FBNIC_FW_OWNERSHIP_FLAG			= 0x0,
 	FBNIC_FW_OWNERSHIP_MSG_MAX
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_hwmon.c b/drivers/net/ethernet/meta/fbnic/fbnic_hwmon.c
new file mode 100644
index 0000000000000..def8598aceecf
--- /dev/null
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_hwmon.c
@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) Meta Platforms, Inc. and affiliates. */
+
+#include <linux/hwmon.h>
+
+#include "fbnic.h"
+#include "fbnic_mac.h"
+
+static int fbnic_hwmon_sensor_id(enum hwmon_sensor_types type)
+{
+	if (type == hwmon_temp)
+		return FBNIC_SENSOR_TEMP;
+	if (type == hwmon_in)
+		return FBNIC_SENSOR_VOLTAGE;
+
+	return -EOPNOTSUPP;
+}
+
+static umode_t fbnic_hwmon_is_visible(const void *drvdata,
+				      enum hwmon_sensor_types type,
+				      u32 attr, int channel)
+{
+	if (type == hwmon_temp && attr == hwmon_temp_input)
+		return 0444;
+	if (type == hwmon_in && attr == hwmon_in_input)
+		return 0444;
+
+	return 0;
+}
+
+static int fbnic_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
+			    u32 attr, int channel, long *val)
+{
+	struct fbnic_dev *fbd = dev_get_drvdata(dev);
+	const struct fbnic_mac *mac = fbd->mac;
+	int id;
+
+	id = fbnic_hwmon_sensor_id(type);
+	return id < 0 ? id : mac->get_sensor(fbd, id, val);
+}
+
+static const struct hwmon_ops fbnic_hwmon_ops = {
+	.is_visible = fbnic_hwmon_is_visible,
+	.read = fbnic_hwmon_read,
+};
+
+static const struct hwmon_channel_info *fbnic_hwmon_info[] = {
+	HWMON_CHANNEL_INFO(temp, HWMON_T_INPUT),
+	HWMON_CHANNEL_INFO(in, HWMON_I_INPUT),
+	NULL
+};
+
+static const struct hwmon_chip_info fbnic_chip_info = {
+	.ops = &fbnic_hwmon_ops,
+	.info = fbnic_hwmon_info,
+};
+
+void fbnic_hwmon_register(struct fbnic_dev *fbd)
+{
+	if (!IS_REACHABLE(CONFIG_HWMON))
+		return;
+
+	fbd->hwmon = hwmon_device_register_with_info(fbd->dev, "fbnic",
+						     fbd, &fbnic_chip_info,
+						     NULL);
+	if (IS_ERR(fbd->hwmon)) {
+		dev_notice(fbd->dev,
+			   "Failed to register hwmon device %pe\n",
+			   fbd->hwmon);
+		fbd->hwmon = NULL;
+	}
+}
+
+void fbnic_hwmon_unregister(struct fbnic_dev *fbd)
+{
+	if (!IS_REACHABLE(CONFIG_HWMON) || !fbd->hwmon)
+		return;
+
+	hwmon_device_unregister(fbd->hwmon);
+	fbd->hwmon = NULL;
+}
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_mac.c b/drivers/net/ethernet/meta/fbnic/fbnic_mac.c
index 7b654d0a6dac6..14291401f4632 100644
--- a/drivers/net/ethernet/meta/fbnic/fbnic_mac.c
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_mac.c
@@ -686,6 +686,77 @@ fbnic_mac_get_eth_mac_stats(struct fbnic_dev *fbd, bool reset,
 			    MAC_STAT_TX_BROADCAST);
 }
 
+static int fbnic_mac_get_sensor_asic(struct fbnic_dev *fbd, int id,
+				     long *val)
+{
+	struct fbnic_fw_completion *fw_cmpl;
+	int err = 0, retries = 5;
+	s32 *sensor;
+
+	fw_cmpl = kzalloc(sizeof(*fw_cmpl), GFP_KERNEL);
+	if (!fw_cmpl)
+		return -ENOMEM;
+
+	/* Initialize completion and queue it for FW to process */
+	fbnic_fw_init_cmpl(fw_cmpl, FBNIC_TLV_MSG_ID_TSENE_READ_RESP);
+
+	switch (id) {
+	case FBNIC_SENSOR_TEMP:
+		sensor = &fw_cmpl->u.tsene.millidegrees;
+		break;
+	case FBNIC_SENSOR_VOLTAGE:
+		sensor = &fw_cmpl->u.tsene.millivolts;
+		break;
+	default:
+		err = -EINVAL;
+		goto exit_free;
+	}
+
+	err = fbnic_fw_xmit_tsene_read_msg(fbd, fw_cmpl);
+	if (err) {
+		dev_err(fbd->dev,
+			"Failed to transmit TSENE read msg, err %d\n",
+			err);
+		goto exit_free;
+	}
+
+	/* Allow 2 seconds for reply, resend and try up to 5 times */
+	while (!wait_for_completion_timeout(&fw_cmpl->done, 2 * HZ)) {
+		retries--;
+
+		if (retries == 0) {
+			dev_err(fbd->dev,
+				"Timed out waiting for TSENE read\n");
+			err = -ETIMEDOUT;
+			goto exit_cleanup;
+		}
+
+		err = fbnic_fw_xmit_tsene_read_msg(fbd, NULL);
+		if (err) {
+			dev_err(fbd->dev,
+				"Failed to transmit TSENE read msg, err %d\n",
+				err);
+			goto exit_cleanup;
+		}
+	}
+
+	/* Handle error returned by firmware */
+	if (fw_cmpl->result) {
+		err = fw_cmpl->result;
+		dev_err(fbd->dev, "%s: Firmware returned error %d\n",
+			__func__, err);
+		goto exit_cleanup;
+	}
+
+	*val = *sensor;
+exit_cleanup:
+	fbnic_fw_clear_compl(fbd);
+exit_free:
+	fbnic_fw_put_cmpl(fw_cmpl);
+
+	return err;
+}
+
 static const struct fbnic_mac fbnic_mac_asic = {
 	.init_regs = fbnic_mac_init_regs,
 	.pcs_enable = fbnic_pcs_enable_asic,
@@ -695,6 +766,7 @@ static const struct fbnic_mac fbnic_mac_asic = {
 	.get_eth_mac_stats = fbnic_mac_get_eth_mac_stats,
 	.link_down = fbnic_mac_link_down_asic,
 	.link_up = fbnic_mac_link_up_asic,
+	.get_sensor = fbnic_mac_get_sensor_asic,
 };
 
 /**
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_mac.h b/drivers/net/ethernet/meta/fbnic/fbnic_mac.h
index 476239a9d381e..05a591653e091 100644
--- a/drivers/net/ethernet/meta/fbnic/fbnic_mac.h
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_mac.h
@@ -47,6 +47,11 @@ enum {
 #define FBNIC_LINK_MODE_PAM4	(FBNIC_LINK_50R1)
 #define FBNIC_LINK_MODE_MASK	(FBNIC_LINK_AUTO - 1)
 
+enum fbnic_sensor_id {
+	FBNIC_SENSOR_TEMP,		/* Temp in millidegrees Centigrade */
+	FBNIC_SENSOR_VOLTAGE,		/* Voltage in millivolts */
+};
+
 /* This structure defines the interface hooks for the MAC. The MAC hooks
  * will be configured as a const struct provided with a set of function
  * pointers.
@@ -83,6 +88,8 @@ struct fbnic_mac {
 
 	void (*link_down)(struct fbnic_dev *fbd);
 	void (*link_up)(struct fbnic_dev *fbd, bool tx_pause, bool rx_pause);
+
+	int (*get_sensor)(struct fbnic_dev *fbd, int id, long *val);
 };
 
 int fbnic_mac_init(struct fbnic_dev *fbd);
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_pci.c b/drivers/net/ethernet/meta/fbnic/fbnic_pci.c
index 2c96980d150de..6cbbc2ee3e1f9 100644
--- a/drivers/net/ethernet/meta/fbnic/fbnic_pci.c
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_pci.c
@@ -296,6 +296,8 @@ static int fbnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	/* Capture snapshot of hardware stats so netdev can calculate delta */
 	fbnic_reset_hw_stats(fbd);
 
+	fbnic_hwmon_register(fbd);
+
 	if (!fbd->dsn) {
 		dev_warn(&pdev->dev, "Reading serial number failed\n");
 		goto init_failure_mode;
@@ -358,6 +360,7 @@ static void fbnic_remove(struct pci_dev *pdev)
 		fbnic_netdev_free(fbd);
 	}
 
+	fbnic_hwmon_unregister(fbd);
 	fbnic_dbg_fbd_exit(fbd);
 	fbnic_devlink_unregister(fbd);
 	fbnic_fw_disable_mbx(fbd);