diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
index b32d5141dbbe6..747b18ebbd66b 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
@@ -79,9 +79,9 @@ static void *iwl_acpi_get_object(struct device *dev, acpi_string method)
  * method (DSM) interface. The returned acpi object must be freed by calling
  * function.
  */
-static void *iwl_acpi_get_dsm_object(struct device *dev, int rev, int func,
-				     union acpi_object *args,
-				     const guid_t *guid)
+union acpi_object *iwl_acpi_get_dsm_object(struct device *dev, int rev,
+					   int func, union acpi_object *args,
+					   const guid_t *guid)
 {
 	union acpi_object *obj;
 
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
index e153c44d5c1dd..e50b93472dd2d 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
@@ -109,6 +109,30 @@
 
 #define ACPI_DSM_REV 0
 
+#define DSM_INTERNAL_FUNC_GET_PLAT_INFO	1
+/* TBD: VPRO is BIT(0) in the result, but what's the result? */
+
+#define DSM_INTERNAL_FUNC_PRODUCT_RESET	2
+
+/* DSM_INTERNAL_FUNC_PRODUCT_RESET - product reset (aka "PLDR") */
+enum iwl_dsm_internal_product_reset_cmds {
+	DSM_INTERNAL_PLDR_CMD_GET_MODE = 1,
+	DSM_INTERNAL_PLDR_CMD_SET_MODE = 2,
+	DSM_INTERNAL_PLDR_CMD_GET_STATUS = 3,
+};
+
+enum iwl_dsm_internal_product_reset_mode {
+	DSM_INTERNAL_PLDR_MODE_EN_PROD_RESET	= BIT(0),
+	DSM_INTERNAL_PLDR_MODE_EN_WIFI_FLR	= BIT(1),
+	DSM_INTERNAL_PLDR_MODE_EN_BT_OFF_ON	= BIT(2),
+};
+
+struct iwl_dsm_internal_product_reset_cmd {
+	/* cmd is from enum iwl_dsm_internal_product_reset_cmds */
+	u16 cmd;
+	u16 value;
+} __packed;
+
 #define IWL_ACPI_WBEM_REV0_MASK (BIT(0) | BIT(1))
 #define IWL_ACPI_WBEM_REVISION 0
 
@@ -118,6 +142,10 @@ struct iwl_fw_runtime;
 
 extern const guid_t iwl_guid;
 
+union acpi_object *iwl_acpi_get_dsm_object(struct device *dev, int rev,
+					   int func, union acpi_object *args,
+					   const guid_t *guid);
+
 /**
  * iwl_acpi_get_mcc - read MCC from ACPI, if available
  *
@@ -166,8 +194,9 @@ int iwl_acpi_get_dsbr(struct iwl_fw_runtime *fwrt, u32 *value);
 
 #else /* CONFIG_ACPI */
 
-static inline void *iwl_acpi_get_dsm_object(struct device *dev, int rev,
-					    int func, union acpi_object *args)
+static inline union acpi_object *
+iwl_acpi_get_dsm_object(struct device *dev, int rev, int func,
+			union acpi_object *args, const guid_t *guid)
 {
 	return ERR_PTR(-ENOENT);
 }
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-debug.h b/drivers/net/wireless/intel/iwlwifi/iwl-debug.h
index 1b9f16a31b546..bf52c2edaad12 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-debug.h
@@ -2,7 +2,7 @@
 /******************************************************************************
  *
  * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved.
- * Copyright(c) 2018 - 2021 Intel Corporation
+ * Copyright(c) 2018 - 2021, 2024 Intel Corporation
  *
  * Portions of this file are derived from the ipw3945 project.
  *****************************************************************************/
@@ -209,6 +209,7 @@ do {                                            			\
 #define IWL_DEBUG_RADIO(p, f, a...)	IWL_DEBUG(p, IWL_DL_RADIO, f, ## a)
 #define IWL_DEBUG_DEV_RADIO(p, f, a...)	IWL_DEBUG_DEV(p, IWL_DL_RADIO, f, ## a)
 #define IWL_DEBUG_POWER(p, f, a...)	IWL_DEBUG(p, IWL_DL_POWER, f, ## a)
+#define IWL_DEBUG_DEV_POWER(p, f, a...)	IWL_DEBUG_DEV(p, IWL_DL_POWER, f, ## a)
 #define IWL_DEBUG_11H(p, f, a...)	IWL_DEBUG(p, IWL_DL_11H, f, ## a)
 #define IWL_DEBUG_TPT(p, f, a...)	IWL_DEBUG(p, IWL_DL_TPT, f, ## a)
 #define IWL_DEBUG_WOWLAN(p, f, a...)	IWL_DEBUG(p, IWL_DL_WOWLAN, f, ## a)
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index c342a4d6ca6c7..62c4b2e29e93f 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -1245,7 +1245,16 @@ static inline bool iwl_trans_is_hw_error_value(u32 val)
  *****************************************************/
 int __must_check iwl_pci_register_driver(void);
 void iwl_pci_unregister_driver(void);
-void iwl_trans_pcie_remove(struct iwl_trans *trans, bool rescan);
+
+/* Note: order matters */
+enum iwl_reset_mode {
+	IWL_RESET_MODE_REMOVE_ONLY,
+	IWL_RESET_MODE_RESCAN,
+	IWL_RESET_MODE_FUNC_RESET,
+	IWL_RESET_MODE_PROD_RESET,
+};
+
+void iwl_trans_pcie_reset(struct iwl_trans *trans, enum iwl_reset_mode mode);
 
 int iwl_trans_pcie_send_hcmd(struct iwl_trans *trans,
 			     struct iwl_host_cmd *cmd);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index 029347b79655f..52056f4897976 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -642,7 +642,8 @@ static int iwl_run_unified_mvm_ucode(struct iwl_mvm *mvm)
 		/* if we needed reset then fail here, but notify and remove */
 		if (mvm->fw_product_reset) {
 			iwl_mei_alive_notif(false);
-			iwl_trans_pcie_remove(mvm->trans, true);
+			iwl_trans_pcie_reset(mvm->trans,
+					     IWL_RESET_MODE_RESCAN);
 		}
 
 		goto error;
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
index c0b249c1ea8cf..e0b657b2f74b0 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
@@ -1480,6 +1480,9 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	trans_pcie = IWL_TRANS_GET_PCIE_TRANS(iwl_trans);
 
+	iwl_trans_pcie_check_product_reset_status(pdev);
+	iwl_trans_pcie_check_product_reset_mode(pdev);
+
 	/*
 	 * Let's try to grab NIC access early here. Sometimes, NICs may
 	 * fail to initialize, and if that happens it's better if we see
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
index 27a7e0b5b3d51..617ec598de653 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
@@ -563,6 +563,9 @@ bool __iwl_trans_pcie_grab_nic_access(struct iwl_trans *trans);
 	__cond_lock(nic_access_nobh,				\
 		    likely(__iwl_trans_pcie_grab_nic_access(trans)))
 
+void iwl_trans_pcie_check_product_reset_status(struct pci_dev *pdev);
+void iwl_trans_pcie_check_product_reset_mode(struct pci_dev *pdev);
+
 /*****************************************************
 * RX
 ******************************************************/
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
index 02fef6baf2e3e..4a442d03d8d29 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
@@ -2297,7 +2297,9 @@ irqreturn_t iwl_pcie_irq_msix_handler(int irq, void *dev_id)
 	if (inta_hw & MSIX_HW_INT_CAUSES_REG_TOP_FATAL_ERR) {
 		IWL_ERR(trans, "TOP Fatal error detected, inta_hw=0x%x.\n",
 			inta_hw);
-		/* TODO: PLDR flow required here for >= Bz */
+		if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ)
+			iwl_trans_pcie_reset(trans,
+					     IWL_RESET_MODE_PROD_RESET);
 	}
 
 	/* Error detected by uCode */
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 053f0ac756be2..79967a3ff8dc4 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -24,6 +24,7 @@
 #include "fw/error-dump.h"
 #include "fw/dbg.h"
 #include "fw/api/tx.h"
+#include "fw/acpi.h"
 #include "mei/iwl-mei.h"
 #include "internal.h"
 #include "iwl-fh.h"
@@ -2105,10 +2106,157 @@ void iwl_trans_pcie_free(struct iwl_trans *trans)
 	iwl_trans_free(trans);
 }
 
+static union acpi_object *
+iwl_trans_pcie_call_prod_reset_dsm(struct pci_dev *pdev, u16 cmd, u16 value)
+{
+#ifdef CONFIG_ACPI
+	struct iwl_dsm_internal_product_reset_cmd pldr_arg = {
+		.cmd = cmd,
+		.value = value,
+	};
+	union acpi_object arg = {
+		.buffer.type = ACPI_TYPE_BUFFER,
+		.buffer.length = sizeof(pldr_arg),
+		.buffer.pointer = (void *)&pldr_arg,
+	};
+	static const guid_t dsm_guid = GUID_INIT(0x7266172C, 0x220B, 0x4B29,
+						 0x81, 0x4F, 0x75, 0xE4,
+						 0xDD, 0x26, 0xB5, 0xFD);
+
+	if (!acpi_check_dsm(ACPI_HANDLE(&pdev->dev), &dsm_guid, ACPI_DSM_REV,
+			    DSM_INTERNAL_FUNC_PRODUCT_RESET))
+		return ERR_PTR(-ENODEV);
+
+	return iwl_acpi_get_dsm_object(&pdev->dev, ACPI_DSM_REV,
+				       DSM_INTERNAL_FUNC_PRODUCT_RESET,
+				       &arg, &dsm_guid);
+#else
+	return ERR_PTR(-EOPNOTSUPP);
+#endif
+}
+
+void iwl_trans_pcie_check_product_reset_mode(struct pci_dev *pdev)
+{
+	union acpi_object *res;
+
+	res = iwl_trans_pcie_call_prod_reset_dsm(pdev,
+						 DSM_INTERNAL_PLDR_CMD_GET_MODE,
+						 0);
+	if (IS_ERR(res))
+		return;
+
+	if (res->type != ACPI_TYPE_INTEGER)
+		IWL_ERR_DEV(&pdev->dev,
+			    "unexpected return type from product reset DSM\n");
+	else
+		IWL_DEBUG_DEV_POWER(&pdev->dev,
+				    "product reset mode is 0x%llx\n",
+				    res->integer.value);
+
+	ACPI_FREE(res);
+}
+
+static void iwl_trans_pcie_set_product_reset(struct pci_dev *pdev, bool enable,
+					     bool integrated)
+{
+	union acpi_object *res;
+	u16 mode = enable ? DSM_INTERNAL_PLDR_MODE_EN_PROD_RESET : 0;
+
+	if (!integrated)
+		mode |= DSM_INTERNAL_PLDR_MODE_EN_WIFI_FLR |
+			DSM_INTERNAL_PLDR_MODE_EN_BT_OFF_ON;
+
+	res = iwl_trans_pcie_call_prod_reset_dsm(pdev,
+						 DSM_INTERNAL_PLDR_CMD_SET_MODE,
+						 mode);
+	if (IS_ERR(res)) {
+		if (enable)
+			IWL_ERR_DEV(&pdev->dev,
+				    "ACPI _DSM not available (%d), cannot do product reset\n",
+				    (int)PTR_ERR(res));
+		return;
+	}
+
+	ACPI_FREE(res);
+	IWL_DEBUG_DEV_POWER(&pdev->dev, "%sabled product reset via DSM\n",
+			    enable ? "En" : "Dis");
+	iwl_trans_pcie_check_product_reset_mode(pdev);
+}
+
+void iwl_trans_pcie_check_product_reset_status(struct pci_dev *pdev)
+{
+	union acpi_object *res;
+
+	res = iwl_trans_pcie_call_prod_reset_dsm(pdev,
+						 DSM_INTERNAL_PLDR_CMD_GET_STATUS,
+						 0);
+	if (IS_ERR(res))
+		return;
+
+	if (res->type != ACPI_TYPE_INTEGER)
+		IWL_ERR_DEV(&pdev->dev,
+			    "unexpected return type from product reset DSM\n");
+	else
+		IWL_DEBUG_DEV_POWER(&pdev->dev,
+				    "product reset status is 0x%llx\n",
+				    res->integer.value);
+
+	ACPI_FREE(res);
+}
+
+static void iwl_trans_pcie_call_reset(struct pci_dev *pdev)
+{
+#ifdef CONFIG_ACPI
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object *p, *ref;
+	acpi_status status;
+	int ret = -EINVAL;
+
+	status = acpi_evaluate_object(ACPI_HANDLE(&pdev->dev),
+				      "_PRR", NULL, &buffer);
+	if (ACPI_FAILURE(status)) {
+		IWL_DEBUG_DEV_POWER(&pdev->dev, "No _PRR method found\n");
+		goto out;
+	}
+	p = buffer.pointer;
+
+	if (p->type != ACPI_TYPE_PACKAGE || p->package.count != 1) {
+		pci_err(pdev, "Bad _PRR return type\n");
+		goto out;
+	}
+
+	ref = &p->package.elements[0];
+	if (ref->type != ACPI_TYPE_LOCAL_REFERENCE) {
+		pci_err(pdev, "_PRR wasn't a reference\n");
+		goto out;
+	}
+
+	status = acpi_evaluate_object(ref->reference.handle,
+				      "_RST", NULL, NULL);
+	if (ACPI_FAILURE(status)) {
+		pci_err(pdev,
+			"Failed to call _RST on object returned by _PRR (%d)\n",
+			status);
+		goto out;
+	}
+	ret = 0;
+out:
+	kfree(buffer.pointer);
+	if (!ret) {
+		IWL_DEBUG_DEV_POWER(&pdev->dev, "called _RST on _PRR object\n");
+		return;
+	}
+	IWL_DEBUG_DEV_POWER(&pdev->dev,
+			    "No BIOS support, using pci_reset_function()\n");
+#endif
+	pci_reset_function(pdev);
+}
+
 struct iwl_trans_pcie_removal {
 	struct pci_dev *pdev;
 	struct work_struct work;
-	bool rescan;
+	enum iwl_reset_mode mode;
+	bool integrated;
 };
 
 static void iwl_trans_pcie_removal_wk(struct work_struct *wk)
@@ -2126,14 +2274,66 @@ static void iwl_trans_pcie_removal_wk(struct work_struct *wk)
 	if (!bus)
 		goto out;
 
-	dev_err(&pdev->dev, "Device gone - attempting removal\n");
-
 	kobject_uevent_env(&pdev->dev.kobj, KOBJ_CHANGE, prop);
 
+	if (removal->mode == IWL_RESET_MODE_PROD_RESET) {
+		struct pci_dev *bt = NULL;
+
+		if (!removal->integrated) {
+			/* discrete devices have WiFi/BT at function 0/1 */
+			int slot = PCI_SLOT(pdev->devfn);
+			int func = PCI_FUNC(pdev->devfn);
+
+			if (func == 0)
+				bt = pci_get_slot(bus, PCI_DEVFN(slot, 1));
+			else
+				pci_info(pdev, "Unexpected function %d\n",
+					 func);
+		} else {
+			/* on integrated we have to look up by ID (same bus) */
+			static const struct pci_device_id bt_device_ids[] = {
+#define BT_DEV(_id) { PCI_DEVICE(PCI_VENDOR_ID_INTEL, _id) }
+				BT_DEV(0xA876), /* LNL */
+				BT_DEV(0xE476), /* PTL-P */
+				BT_DEV(0xE376), /* PTL-H */
+				BT_DEV(0xD346), /* NVL-H */
+				BT_DEV(0x6E74), /* NVL-S */
+				BT_DEV(0x4D76), /* WCL */
+				BT_DEV(0xD246), /* RZL-H */
+				BT_DEV(0x6C46), /* RZL-M */
+				{}
+			};
+			struct pci_dev *tmp = NULL;
+
+			for_each_pci_dev(tmp) {
+				if (tmp->bus != bus)
+					continue;
+
+				if (pci_match_id(bt_device_ids, tmp)) {
+					bt = tmp;
+					break;
+				}
+			}
+		}
+
+		if (bt) {
+			pci_info(bt, "Removal by WiFi due to product reset\n");
+			pci_stop_and_remove_bus_device(bt);
+			pci_dev_put(bt);
+		}
+	}
+
+	iwl_trans_pcie_set_product_reset(pdev,
+					 removal->mode ==
+						IWL_RESET_MODE_PROD_RESET,
+					 removal->integrated);
+	if (removal->mode >= IWL_RESET_MODE_FUNC_RESET)
+		iwl_trans_pcie_call_reset(pdev);
+
 	pci_stop_and_remove_bus_device(pdev);
 	pci_dev_put(pdev);
 
-	if (removal->rescan) {
+	if (removal->mode >= IWL_RESET_MODE_RESCAN) {
 		if (bus->parent)
 			bus = bus->parent;
 		pci_rescan_bus(bus);
@@ -2146,14 +2346,24 @@ static void iwl_trans_pcie_removal_wk(struct work_struct *wk)
 	module_put(THIS_MODULE);
 }
 
-void iwl_trans_pcie_remove(struct iwl_trans *trans, bool rescan)
+void iwl_trans_pcie_reset(struct iwl_trans *trans, enum iwl_reset_mode mode)
 {
 	struct iwl_trans_pcie_removal *removal;
+	char _msg = 0, *msg = &_msg;
 
 	if (test_bit(STATUS_TRANS_DEAD, &trans->status))
 		return;
 
-	IWL_ERR(trans, "Device gone - scheduling removal!\n");
+	if (trans->me_present && mode == IWL_RESET_MODE_PROD_RESET) {
+		mode = IWL_RESET_MODE_FUNC_RESET;
+		if (trans->me_present < 0)
+			msg = " instead of product reset as ME may be present";
+		else
+			msg = " instead of product reset as ME is present";
+	}
+
+	IWL_INFO(trans, "scheduling reset (mode=%d%s)\n", mode, msg);
+
 	iwl_pcie_dump_csr(trans);
 
 	/*
@@ -2180,12 +2390,13 @@ void iwl_trans_pcie_remove(struct iwl_trans *trans, bool rescan)
 	set_bit(STATUS_TRANS_DEAD, &trans->status);
 
 	removal->pdev = to_pci_dev(trans->dev);
-	removal->rescan = rescan;
+	removal->mode = mode;
+	removal->integrated = trans->trans_cfg->integrated;
 	INIT_WORK(&removal->work, iwl_trans_pcie_removal_wk);
 	pci_dev_get(removal->pdev);
 	schedule_work(&removal->work);
 }
-EXPORT_SYMBOL(iwl_trans_pcie_remove);
+EXPORT_SYMBOL(iwl_trans_pcie_reset);
 
 /*
  * This version doesn't disable BHs but rather assumes they're
@@ -2250,7 +2461,8 @@ bool __iwl_trans_pcie_grab_nic_access(struct iwl_trans *trans)
 		iwl_trans_pcie_dump_regs(trans);
 
 		if (iwlwifi_mod_params.remove_when_gone && cntrl == ~0U)
-			iwl_trans_pcie_remove(trans, false);
+			iwl_trans_pcie_reset(trans,
+					     IWL_RESET_MODE_REMOVE_ONLY);
 		else
 			iwl_write32(trans, CSR_RESET,
 				    CSR_RESET_REG_FLAG_FORCE_NMI);
@@ -3037,12 +3249,42 @@ static ssize_t iwl_dbgfs_rf_read(struct file *file,
 				       strlen(trans_pcie->rf_name));
 }
 
+static ssize_t iwl_dbgfs_reset_write(struct file *file,
+				     const char __user *user_buf,
+				     size_t count, loff_t *ppos)
+{
+	struct iwl_trans *trans = file->private_data;
+	static const char * const modes[] = {
+		[IWL_RESET_MODE_REMOVE_ONLY] = "remove",
+		[IWL_RESET_MODE_RESCAN] = "rescan",
+		[IWL_RESET_MODE_FUNC_RESET] = "function",
+		[IWL_RESET_MODE_PROD_RESET] = "product",
+	};
+	char buf[10] = {};
+	int mode;
+
+	if (count > sizeof(buf) - 1)
+		return -EINVAL;
+
+	if (copy_from_user(buf, user_buf, count))
+		return -EFAULT;
+
+	mode = sysfs_match_string(modes, buf);
+	if (mode < 0)
+		return mode;
+
+	iwl_trans_pcie_reset(trans, mode);
+
+	return count;
+}
+
 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
 DEBUGFS_READ_FILE_OPS(fh_reg);
 DEBUGFS_READ_FILE_OPS(rx_queue);
 DEBUGFS_WRITE_FILE_OPS(csr);
 DEBUGFS_READ_WRITE_FILE_OPS(rfkill);
 DEBUGFS_READ_FILE_OPS(rf);
+DEBUGFS_WRITE_FILE_OPS(reset);
 
 static const struct file_operations iwl_dbgfs_tx_queue_ops = {
 	.owner = THIS_MODULE,
@@ -3071,6 +3313,7 @@ void iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans)
 	DEBUGFS_ADD_FILE(rfkill, dir, 0600);
 	DEBUGFS_ADD_FILE(monitor_data, dir, 0400);
 	DEBUGFS_ADD_FILE(rf, dir, 0400);
+	DEBUGFS_ADD_FILE(reset, dir, 0200);
 }
 
 void iwl_trans_pcie_debugfs_cleanup(struct iwl_trans *trans)