diff --git a/sys/dev/isp/isp_pci.c b/sys/dev/isp/isp_pci.c
index 8fe9ba362616..be92b963ee19 100644
--- a/sys/dev/isp/isp_pci.c
+++ b/sys/dev/isp/isp_pci.c
@@ -221,6 +221,10 @@ static struct ispmdvec mdvec_2300 = {
 #define	PCI_PRODUCT_QLOGIC_ISP2312	0x2312
 #endif
 
+#ifndef	PCI_PRODUCT_QLOGIC_ISP6312
+#define	PCI_PRODUCT_QLOGIC_ISP6312	0x6312
+#endif
+
 #define	PCI_QLOGIC_ISP1020	\
 	((PCI_PRODUCT_QLOGIC_ISP1020 << 16) | PCI_VENDOR_QLOGIC)
 
@@ -251,6 +255,9 @@ static struct ispmdvec mdvec_2300 = {
 #define	PCI_QLOGIC_ISP2312	\
 	((PCI_PRODUCT_QLOGIC_ISP2312 << 16) | PCI_VENDOR_QLOGIC)
 
+#define	PCI_QLOGIC_ISP6312	\
+	((PCI_PRODUCT_QLOGIC_ISP6312 << 16) | PCI_VENDOR_QLOGIC)
+
 /*
  * Odd case for some AMI raid cards... We need to *not* attach to this.
  */
@@ -330,6 +337,9 @@ isp_pci_probe(device_t dev)
 	case PCI_QLOGIC_ISP2312:
 		device_set_desc(dev, "Qlogic ISP 2312 PCI FC-AL Adapter");
 		break;
+	case PCI_QLOGIC_ISP6312:
+		device_set_desc(dev, "Qlogic ISP 6312 PCI FC-AL Adapter");
+		break;
 	default:
 		return (ENXIO);
 	}
@@ -517,7 +527,8 @@ isp_pci_attach(device_t dev)
 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] =
 		    PCI_MBOX_REGS2300_OFF;
 	}
-	if (pci_get_devid(dev) == PCI_QLOGIC_ISP2312) {
+	if (pci_get_devid(dev) == PCI_QLOGIC_ISP2312 ||
+	    pci_get_devid(dev) == PCI_QLOGIC_ISP6312) {
 		mdvp = &mdvec_2300;
 		basetype = ISP_HA_FC_2312;
 		psize = sizeof (fcparam);