[Patch 4/5] MdeModulePkg/MdeModulePkg.dec: Define one PCD for PXE to specify MTFTP windowsize.

[Jiaxin Wu <Jiaxin.wu@intel.com>]

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=886

This patch is to define one new PCD for PXE driver to specify MTFTP windowsize so as
to improve the PXE download performance. The default value is set to 4.

Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Cc: Shao Ming <ming.shao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
---
 MdeModulePkg/MdeModulePkg.dec | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index 74a699cbb7..bfc63e5fcb 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -1203,10 +1203,11 @@
   ## This setting can override the default TFTP block size. A value of 0 computes
   # the default from MTU information. A non-zero value will be used as block size
   # in bytes.
   # @Prompt TFTP block size.
   gEfiMdeModulePkgTokenSpaceGuid.PcdTftpBlockSize|0x0|UINT64|0x30001026
+  gEfiMdeModulePkgTokenSpaceGuid.PcdTftpWindowSize|0x4|UINT64|0x3000102A
 
   ## Maximum address that the DXE Core will allocate the EFI_SYSTEM_TABLE_POINTER
   #  structure. The default value for this PCD is 0, which means that the DXE Core
   #  will allocate the buffer from the EFI_SYSTEM_TABLE_POINTER structure on a 4MB
   #  boundary as close to the top of memory as feasible.  If this PCD is set to a
-- 
2.17.1.windows.2