Re: [patch] MdeModulePkg/UsbMass: Revert changes of removing retry logic

["Zeng, Star" <star.zeng@intel.com>]

Reviewed-by: Star Zeng <star.zeng@intel.com>

-----Original Message-----
From: Tian, Feng 
Sent: Monday, November 7, 2016 3:49 PM
To: edk2-devel@lists.01.org
Cc: Zeng, Star <star.zeng@intel.com>
Subject: [patch] MdeModulePkg/UsbMass: Revert changes of removing retry logic

This patch is used to revert changes done in commit 17f3e942
bc527fbd75068d2d5752b6af54917487 - "MdeModulePkg/UsbMass: Not retry if usb bot transfer execution fail"

It's because Usb Floppy will report DEVICE_ERROR for the first several cmds when it need spin up. so retry logic makes sense.

Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Feng Tian <feng.tian@intel.com>
---
 MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c | 7 +------  MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBot.c  | 8 ++------
 2 files changed, 3 insertions(+), 12 deletions(-)

diff --git a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c
index d5de1ac..0c46f88 100644
--- a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c
+++ b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c
@@ -189,11 +189,6 @@ UsbBootExecCmd (
     return EFI_TIMEOUT;
   }
 
-  if (Status == EFI_DEVICE_ERROR) {
-    DEBUG ((EFI_D_ERROR, "UsbBootExecCmd: Device Error to Exec 0x%x Cmd\n", *(UINT8 *)Cmd));
-    return EFI_DEVICE_ERROR;
-  }
-
   //
   // If ExecCommand() returns no error and CmdResult is success,
   // then the commnad transfer is successful.
@@ -276,7 +271,7 @@ UsbBootExecCmdWithRetry (
                DataLen,
                Timeout
                );
-    if (Status == EFI_SUCCESS || Status == EFI_MEDIA_CHANGED || Status == EFI_NO_MEDIA || Status == EFI_DEVICE_ERROR) {
+    if (Status == EFI_SUCCESS || Status == EFI_MEDIA_CHANGED || Status 
+ == EFI_NO_MEDIA) {
       break;
     }
     //
diff --git a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBot.c b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBot.c
index 4c29b61..4bb7222 100644
--- a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBot.c
+++ b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBot.c
@@ -2,7 +2,7 @@
   Implementation of the USB mass storage Bulk-Only Transport protocol,
   according to USB Mass Storage Class Bulk-Only Transport, Revision 1.0.
 
-Copyright (c) 2007 - 2016, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2007 - 2011, 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 @@ -432,11 +432,7 @@ UsbBotExecCommand (
   // whether it succeeds or fails.
   //
   TransLen = (UINTN) DataLen;
-  Status   = UsbBotDataTransfer (UsbBot, DataDir, Data, &TransLen, Timeout);
-  if (Status == EFI_DEVICE_ERROR) {
-    DEBUG ((EFI_D_ERROR, "UsbBotExecCommand: UsbBotDataTransfer (%r)\n", Status));
-    return Status;
-  }
+  UsbBotDataTransfer (UsbBot, DataDir, Data, &TransLen, Timeout);
 
   //
   // Get the status, if that succeeds, interpret the result
--
2.7.1.windows.2