ArmPkg/BdsLib: Rework TFTP boot

Rework the downloading of an image from a TFTP server to do not
depend on any "PXE specific" setting of the DHCP server.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ronald Cron <Ronald.Cron@arm.com>
Reviewed-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16516 6f19259b-4bc3-4df7-8a09-765794883524

ArmPkg/Library/BdsLib/BdsInternal.h

@@ -71,6 +71,11 @@ typedef struct _BDS_SYSTEM_MEMORY_RESOURCE {
   UINT64                      ResourceLength;
 } BDS_SYSTEM_MEMORY_RESOURCE;
 
+typedef struct {
+  UINT64  FileSize;
+  UINT64  DownloadedNbOfBytes;
+  UINT64  LastReportedNbOfBytes;
+} BDS_TFTP_CONTEXT;
 
 // BdsHelper.c
 EFI_STATUS