MdeModulePkg/Usb: Boost the r/w performance by reducing stall time on polling cmd...

[mirror_edk2.git] / MdeModulePkg / Bus / Pci / XhciDxe / XhciSched.c

diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
index e6c0d1564241ac99a6e7f3d7bf7fdc86ac40a55c..f80ef8183411f439011a7b550a0121b7318a7ec7 100644 (file)
--- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
@@ -2,7 +2,7 @@
 \r
   XHCI transfer scheduling routines.\r
 \r
-Copyright (c) 2011 - 2012, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2011 - 2013, Intel Corporation. All rights reserved.<BR>\r
 This program and the accompanying materials\r
 are licensed and made available under the terms and conditions of the BSD License\r
 which accompanies this distribution.  The full text of the license may be found at\r
@@ -1101,7 +1101,7 @@ XhcExecTransfer (
   }\r
 \r
   Status = EFI_SUCCESS;\r
-  Loop   = (Timeout * XHC_1_MILLISECOND / XHC_POLL_DELAY) + 1;\r
+  Loop   = Timeout * XHC_1_MILLISECOND;\r
   if (Timeout == 0) {\r
     Loop = 0xFFFFFFFF;\r
   }\r
@@ -1113,7 +1113,7 @@ XhcExecTransfer (
     if (Urb->Finished) {\r
       break;\r
     }\r
-    gBS->Stall (XHC_POLL_DELAY);\r
+    gBS->Stall (XHC_1_MICROSECOND);\r
   }\r
 \r
   if (Index == Loop) {\r