Update the structure of EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL, PXE_HW_UNDI, PXE_SW_UNDI to support greater than 256NICs in UNDI (Request by UEFI2.4 Mantis991).

Signed-off-by: Qian Ouyang <qian.ouyang@intel.com>
Reviewed-by: Ting Ye <ting.ye@intel.com>
             Siyuan Fu <siyuan.fu@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14569 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 15 insertions, 10 deletions

diff --git a/OptionRomPkg/UndiRuntimeDxe/Decode.c b/OptionRomPkg/UndiRuntimeDxe/Decode.c
index 0eabc2ad8f..eb0ee1d693 100644
--- a/OptionRomPkg/UndiRuntimeDxe/Decode.c
+++ b/OptionRomPkg/UndiRuntimeDxe/Decode.c
@@ -1,7 +1,7 @@
 /** @file

   Provides the basic UNID functions.

 

-Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>

+Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>

 This program and the accompanying materials

 are licensed and made available under the terms and conditions of the BSD License

 which accompanies this distribution.  The full text of the license may be found at

@@ -1290,7 +1290,7 @@ UNDI_APIEntry_new (
 

   CdbPtr = (PXE_CDB *) (UINTN) cdb;

 

-  if (CdbPtr->IFnum >= pxe_31->IFcnt) {

+  if (CdbPtr->IFnum >= (pxe_31->IFcnt | pxe_31->IFcntExt << 8) ) {

     CdbPtr->StatFlags = PXE_STATFLAGS_COMMAND_FAILED;

     CdbPtr->StatCode  = PXE_STATCODE_INVALID_CDB;

     return ;

@@ -1336,7 +1336,7 @@ UNDI_APIEntry_Common (
   if ((CdbPtr->OpCode > PXE_OPCODE_LAST_VALID) ||

       (CdbPtr->StatCode != PXE_STATCODE_INITIALIZE) ||

       (CdbPtr->StatFlags != PXE_STATFLAGS_INITIALIZE) ||

-      (CdbPtr->IFnum >= pxe_31->IFcnt) ) {

+      (CdbPtr->IFnum >= (pxe_31->IFcnt | pxe_31->IFcntExt << 8) ) {

     goto badcdb;

 

   }

@@ -1436,24 +1436,28 @@ PxeUpdate (
   IN PXE_SW_UNDI        *PxePtr

   )

 {

+  UINT16 NicNum;

+  NicNum = (PxePtr->IFcnt | PxePtr->IFcntEx << 8);

+  

   if (NicPtr == NULL) {

-    if (PxePtr->IFcnt > 0) {

+    if (NicNum > 0) {

       //

       // number of NICs this undi supports

       //

-      PxePtr->IFcnt--;

+      NicNum --;

     }

-

-    PxePtr->Fudge = (UINT8) (PxePtr->Fudge - CalculateSum8 ((VOID *) PxePtr, PxePtr->Len));

-    return ;

+    goto done;

   }

 

   //

   // number of NICs this undi supports

   //

-  PxePtr->IFcnt++;

+  NicNum++;

+  

+done: 

+  PxePtr->IFcnt = (UINT8)(NicNum & 0xFF);

+  PxePtr->IFcntEx = (UINT8) ((NicNum & 0xFF00) >> 8);

   PxePtr->Fudge = (UINT8) (PxePtr->Fudge - CalculateSum8 ((VOID *) PxePtr, PxePtr->Len));

-

   return ;

 }

 

@@ -1485,6 +1489,7 @@ PxeStructInit (
   // number of NICs this undi supports

   //

   PxePtr->IFcnt = 0;

+  PxePtr->IFcntEx = 0;

   PxePtr->Rev       = PXE_ROMID_REV;

   PxePtr->MajorVer  = PXE_ROMID_MAJORVER;

   PxePtr->MinorVer  = PXE_ROMID_MINORVER;