diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index bdb2200..ebcda18 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3948,6 +3948,11 @@
 				any pair of devices, possibly at the cost of
 				reduced performance.  This also guarantees
 				that hot-added devices will work.
+		pcie_tag_peer2peer	Disable 10-Bit Tag Requester for all
+				PCIe devices. This configuration allows
+				peer-to-peer DMA between any pair of devices,
+				possibly at the cost of reduced performance.
+
 		cbiosize=nn[KMG]	The fixed amount of bus space which is
 				reserved for the CardBus bridge's IO window.
 				The default value is 256 bytes.
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index bf15b33..757e77d 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -235,6 +235,9 @@ static ssize_t sriov_vf_10bit_tag_ctl_store(struct device *dev,
 	if (vf_dev->driver)
 		return -EBUSY;
 
+	if (pcie_tag_config == PCIE_TAG_PEER2PEER)
+		return -EPERM;
+
 	if (enable) {
 		if (!pcie_rp_10bit_tag_cmp_supported(pdev))
 			return -EPERM;
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 52d0757..5bc1970 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -319,6 +319,9 @@ static ssize_t pci_10bit_tag_store(struct device *dev,
 	if (pdev->driver)
 		return -EBUSY;
 
+	if (pcie_tag_config == PCIE_TAG_PEER2PEER)
+		return -EPERM;
+
 	if (enable) {
 		if (!pcie_rp_10bit_tag_cmp_supported(pdev))
 			return -EPERM;
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index d14c573..e6c6bce 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -112,6 +112,8 @@ enum pcie_bus_config_types pcie_bus_config = PCIE_BUS_PEER2PEER;
 enum pcie_bus_config_types pcie_bus_config = PCIE_BUS_DEFAULT;
 #endif
 
+enum pcie_tag_config_types pcie_tag_config = PCIE_TAG_DEFAULT;
+
 /*
  * The default CLS is used if arch didn't set CLS explicitly and not
  * all pci devices agree on the same value.  Arch can override either
@@ -6643,6 +6645,8 @@ static int __init pci_setup(char *str)
 				pci_add_flags(PCI_SCAN_ALL_PCIE_DEVS);
 			} else if (!strncmp(str, "disable_acs_redir=", 18)) {
 				disable_acs_redir_param = str + 18;
+			} else if (!strncmp(str, "pcie_tag_peer2peer", 18)) {
+				pcie_tag_config = PCIE_TAG_PEER2PEER;
 			} else {
 				pr_err("PCI: Unknown option `%s'\n", str);
 			}
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index dca5aaf..e9b5875 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -37,6 +37,14 @@ int pci_probe_reset_function(struct pci_dev *dev);
 int pci_bridge_secondary_bus_reset(struct pci_dev *dev);
 int pci_bus_error_reset(struct pci_dev *dev);
 
+enum pcie_tag_config_types {
+	PCIE_TAG_DEFAULT,   /* Enable 10-Bit Tag Requester for devices below
+			       Root Port that support 10-Bit Tag Completer. */
+	PCIE_TAG_PEER2PEER  /* Disable 10-Bit Tag Requester for all devices. */
+};
+
+extern enum pcie_tag_config_types pcie_tag_config;
+
 #define PCI_PM_D2_DELAY         200	/* usec; see PCIe r4.0, sec 5.9.1 */
 #define PCI_PM_D3HOT_WAIT       10	/* msec */
 #define PCI_PM_D3COLD_WAIT      100	/* msec */
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index f9bc562..49f16d5 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -2043,10 +2043,30 @@ bool pcie_rp_10bit_tag_cmp_supported(struct pci_dev *dev)
 	return true;
 }
 
+static void pci_configure_10bit_tags(struct pci_dev *dev)
+{
+	/*
+	 * PCIe 5.0 section 9.3.5.10 10-Bit Tag Requester Enable in Device
+	 * Control 2 Register is RsvdP for VF.
+	 */
+	if (dev->is_virtfn)
+		return;
+
+	if (!pcie_rp_10bit_tag_cmp_supported(dev))
+		return;
+
+	if (pci_pcie_type(dev) != PCI_EXP_TYPE_ENDPOINT)
+		return;
+
+	pci_dbg(dev, "enabling 10-Bit Tag Requester\n");
+	pcie_capability_set_word(dev, PCI_EXP_DEVCTL2,
+				PCI_EXP_DEVCTL2_10BIT_TAG_REQ_EN);
+}
+
 int pci_configure_extended_tags(struct pci_dev *dev, void *ign)
 {
 	struct pci_host_bridge *host;
-	u16 ctl;
+	u16 ctl, ctl2;
 	int ret;
 
 	if (!pci_is_pcie(dev))
@@ -2059,6 +2079,10 @@ int pci_configure_extended_tags(struct pci_dev *dev, void *ign)
 	if (ret)
 		return 0;
 
+	ret = pcie_capability_read_word(dev, PCI_EXP_DEVCTL2, &ctl2);
+	if (ret)
+		return 0;
+
 	host = pci_find_host_bridge(dev->bus);
 	if (!host)
 		return 0;
@@ -2073,6 +2097,12 @@ int pci_configure_extended_tags(struct pci_dev *dev, void *ign)
 			pcie_capability_clear_word(dev, PCI_EXP_DEVCTL,
 						   PCI_EXP_DEVCTL_EXT_TAG);
 		}
+
+		if (ctl2 & PCI_EXP_DEVCTL2_10BIT_TAG_REQ_EN) {
+			pci_info(dev, "disabling 10-Bit Tags\n");
+			pcie_capability_clear_word(dev, PCI_EXP_DEVCTL2,
+					PCI_EXP_DEVCTL2_10BIT_TAG_REQ_EN);
+		}
 		return 0;
 	}
 
@@ -2081,6 +2111,20 @@ int pci_configure_extended_tags(struct pci_dev *dev, void *ign)
 		pcie_capability_set_word(dev, PCI_EXP_DEVCTL,
 					 PCI_EXP_DEVCTL_EXT_TAG);
 	}
+
+	if ((pcie_tag_config == PCIE_TAG_PEER2PEER) &&
+	    (ctl2 & PCI_EXP_DEVCTL2_10BIT_TAG_REQ_EN)) {
+		pci_info(dev, "disabling 10-Bit Tags\n");
+		pcie_capability_clear_word(dev, PCI_EXP_DEVCTL2,
+					PCI_EXP_DEVCTL2_10BIT_TAG_REQ_EN);
+		return 0;
+	}
+
+	if (pcie_tag_config != PCIE_TAG_DEFAULT)
+		return 0;
+
+	pci_configure_10bit_tags(dev);
+
 	return 0;
 }
 
