diff --git a/arch/mips/include/asm/pci/bridge.h b/arch/mips/include/asm/pci/bridge.h
index 00740bc..83f5a42 100644
--- a/arch/mips/include/asm/pci/bridge.h
+++ b/arch/mips/include/asm/pci/bridge.h
@@ -907,4 +907,37 @@ struct bridge_platform_data {
 	int (*pre_enable)(struct pci_controller *, struct pci_dev *, int);
 };
 
+/**
+ * sn_pci_set_vchan - enables the virtual channel on BRIDGE/XBRIDGE.
+ * @pci_dev: pointer to PCI device that will use the virtual channel.
+ * @addr: address of PCI device in crosstalk space.
+ * @vchan: flag that enables or disables the virtual channel.
+ *
+ * Returns '0' if successful, else -1.
+ *
+ * Ripped from arch/ia64/include/asm/sn/io.h.
+ * Needed in drivers/scsi/qla1280.c, as we're simply hijacking the existing
+ * IA64 #ifdefs to also work in the MIPS case.
+ */
+static inline int
+sn_pci_set_vchan(struct pci_dev *pci_dev, unsigned long *addr, int vchan)
+{
+
+	if (vchan > 1)
+		return -1;
+
+	if (!(*addr >> 32))	/* Using a mask here would be cleaner */
+		return 0;	/* but this generates better code */
+
+	if (vchan == 1) {
+		/* Set Bit 57, PCI64_ATTR_VIRTUAL */
+		*addr |= BIT_ULL(57);
+	} else {
+		/* Clear Bit 57, PCI64_ATTR_VIRTUAL */
+		*addr &= ~BIT_ULL(57);
+	}
+
+	return 0;
+}
+
 #endif /* _ASM_PCI_BRIDGE_H */
diff --git a/arch/mips/sgi-ip27/ip27-bridge.c b/arch/mips/sgi-ip27/ip27-bridge.c
index 1db40fc..efa0802 100644
--- a/arch/mips/sgi-ip27/ip27-bridge.c
+++ b/arch/mips/sgi-ip27/ip27-bridge.c
@@ -122,6 +122,10 @@ EXPORT_SYMBOL(pcibus_to_node);
  * IO6/IO6-G.  Slot 4 should always be empty, but it is unknown if a system
  * function may be wired through there or not, like Slot 6 on the IP30 BaseIO
  * BRIDGE for its power button.
+ *
+ * Additionally, for the two QLA channels, the virtual channel bit is also
+ * enabled, as this is the only driver in Linux capable of using this feature
+ * at present (that we know of).
  */
 static void __init
 ip27_bridge_setup_io6_rrbs(bridge_t *bridge, const bool *census)
@@ -131,26 +135,30 @@ ip27_bridge_setup_io6_rrbs(bridge_t *bridge, const bool *census)
 	/* Even RRBs */
 	if (census[6])
 		rrbs = bridge_alloc_rrbs(3, 2, 0, 3,
-					 false, false, false, false);
+					 true, false, false, false);
 	else
 		rrbs = bridge_alloc_rrbs(4, 4, 0, 0,
-					 false, false, false, false);
+					 true, false, false, false);
 	bridge->b_even_resp = rrbs;
 
 	/* Odd RRBs */
 	if (census[5] && census[7])
 		rrbs = bridge_alloc_rrbs(2, 1, 3, 2,
-					 false, false, false, false);
+					 true, false, false, false);
 	else if (census[5] && !census[7])
 		rrbs = bridge_alloc_rrbs(3, 2, 3, 0,
-					 false, false, false, false);
+					 true, false, false, false);
 	else if (!census[5] && census[7])
 		rrbs = bridge_alloc_rrbs(3, 2, 0, 3,
-					 false, false, false, false);
+					 true, false, false, false);
 	else
 		rrbs = bridge_alloc_rrbs(4, 4, 0, 0,
-					 false, false, false, false);
+					 true, false, false, false);
 	bridge->b_odd_resp  = rrbs;
+
+	/* qla1280 sits on slots 0 and 1, so enable the virtual channel. */
+	bridge->b_device[0].reg |= BRIDGE_DEV_VIRTUAL_EN;
+	bridge->b_device[1].reg |= BRIDGE_DEV_VIRTUAL_EN;
 }
 
 /**
diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c
index 634254a..22a6ef1 100644
--- a/drivers/scsi/qla1280.c
+++ b/drivers/scsi/qla1280.c
@@ -368,6 +368,8 @@
 
 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
 #include <asm/sn/io.h>
+#elif defined(CONFIG_SGI_IP27)
+#include <asm/pci/bridge.h>
 #endif
 
 
@@ -1453,6 +1455,12 @@ qla1280_initialize_adapter(struct scsi_qla_host *ha)
 		ha->flags.use_pci_vchannel = 1;
 		driver_setup.no_nvram = 1;
 	}
+#elif defined(CONFIG_SGI_IP27)
+	if (ha->host_no == 0) {
+		printk(KERN_INFO "scsi(%li): Enabling vchannel on BRIDGE "
+		       "for SGI/MIPS\n", ha->host_no);
+		ha->flags.use_pci_vchannel = 1;
+	}
 #endif
 
 	/* TODO: implement support for the 1040 nvram format */
@@ -2911,7 +2919,7 @@ qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
 				break;
 
 			dma_handle = sg_dma_address(s);
-#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
+#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) || defined(CONFIG_SGI_IP27)
 			if (ha->flags.use_pci_vchannel)
 				sn_pci_set_vchan(ha->pdev,
 						 (unsigned long *)&dma_handle,
@@ -2973,7 +2981,7 @@ qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
 				if (cnt == 5)
 					break;
 				dma_handle = sg_dma_address(s);
-#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
+#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) || defined(CONFIG_SGI_IP27)
 				if (ha->flags.use_pci_vchannel)
 					sn_pci_set_vchan(ha->pdev,
 							 (unsigned long *)&dma_handle,
diff --git a/drivers/scsi/qla1280.h b/drivers/scsi/qla1280.h
index 834884b..fd8c68c 100644
--- a/drivers/scsi/qla1280.h
+++ b/drivers/scsi/qla1280.h
@@ -1063,7 +1063,7 @@ struct scsi_qla_host {
 		uint32_t reset_active:1;		/* 3 */
 		uint32_t abort_isp_active:1;		/* 4 */
 		uint32_t disable_risc_code_load:1;	/* 5 */
-#ifdef __ia64__
+#if defined(__ia64__) || defined(__mips__)
 		uint32_t use_pci_vchannel:1;
 #endif
 	} flags;