OvmfPkg: QemuBootOrder: recognize Ethernet OFW device paths

Tested with the e1000, ne2k_pci, pcnet, rtl8139, and virtio iPXE UEFI oprom drivers distributed with qemu-1.5.0-rc1. Also tested with Intel's e1000 driver. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <[email protected]> Reviewed-by: Jordan Justen <[email protected]> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14367 6f19259b-4bc3-4df7-8a09-765794883524
hauzlin · May 15, 2013 · e7a7e48 · e7a7e48
1 parent 7628b0f
commit e7a7e48
Showing 1 changed file with 29 additions and 0 deletions.
diff --git a/OvmfPkg/Library/PlatformBdsLib/QemuBootOrder.c b/OvmfPkg/Library/PlatformBdsLib/QemuBootOrder.c
@@ -677,6 +677,35 @@ TranslateOfwNodes (
       TargetLun[0],
       TargetLun[1]
       );
+  } else if (NumNodes >= 3 &&
+             SubstringEq (OfwNode[1].DriverName, "ethernet") &&
+             SubstringEq (OfwNode[2].DriverName, "ethernet-phy")
+             ) {
+    //
+    // OpenFirmware device path (Ethernet NIC):
+    //
+    //   /pci@i0cf8/ethernet@3[,2]/ethernet-phy@0
+    //        ^              ^                  ^
+    //        |              |                  fixed
+    //        |              PCI slot[, function] holding Ethernet card
+    //        PCI root at system bus port, PIO
+    //
+    // UEFI device path prefix (dependent on presence of nonzero PCI function):
+    //
+    //   PciRoot(0x0)/Pci(0x3,0x0)/MAC(525400E15EEF,0x1)
+    //   PciRoot(0x0)/Pci(0x3,0x2)/MAC(525400E15EEF,0x1)
+    //                                 ^            ^
+    //                                 MAC address  IfType (1 == Ethernet)
+    //
+    // (Some UEFI NIC drivers don't set 0x1 for IfType.)
+    //
+    Written = UnicodeSPrintAsciiFormat (
+      Translated,
+      *TranslatedSize * sizeof (*Translated), // BufferSize in bytes
+      "PciRoot(0x0)/Pci(0x%x,0x%x)/MAC",
+      PciDevFun[0],
+      PciDevFun[1]
+      );
   } else {
     return RETURN_UNSUPPORTED;
   }