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From: "Tian, Feng" <feng.tian@intel.com>
To: Haojian Zhuang <haojian.zhuang@linaro.org>,
	"leif.lindholm@linaro.org" <leif.lindholm@linaro.org>,
	"ard.biesheuvel@linaro.org" <ard.biesheuvel@linaro.org>,
	"edk2-devel@lists.01.org" <edk2-devel@lists.01.org>
Cc: "Tian, Feng" <feng.tian@intel.com>
Subject: Re: [PATCH 9/9] ScsiDisk: retry if device detected power failure
Date: Fri, 6 Jan 2017 08:22:20 +0000	[thread overview]
Message-ID: <7F1BAD85ADEA444D97065A60D2E97EE5699A6090@SHSMSX101.ccr.corp.intel.com> (raw)
In-Reply-To: <1483685538-11058-10-git-send-email-haojian.zhuang@linaro.org>

Hi, Haojian

We have handled ASC code 0x29 at DetectMediaParsingSenseKeys(). TestUnitReady will retry if it's that case.

So I don't understand this fix.

Thanks
Feng

-----Original Message-----
From: Haojian Zhuang [mailto:haojian.zhuang@linaro.org] 
Sent: Friday, January 6, 2017 2:52 PM
To: Tian, Feng <feng.tian@intel.com>; leif.lindholm@linaro.org; ard.biesheuvel@linaro.org; edk2-devel@lists.01.org
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Subject: [PATCH 9/9] ScsiDisk: retry if device detected power failure

If device detected power failure, just retry. This operation is common in linux kernel.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
 MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.c b/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.c
index b5eff25..a7b62ec 100644
--- a/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.c
+++ b/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.c
@@ -2251,6 +2251,12 @@ ScsiDiskTestUnitReady (
   if (SenseDataLength != 0) {
     *NumberOfSenseKeys = SenseDataLength / sizeof (EFI_SCSI_SENSE_DATA);
     *SenseDataArray    = ScsiDiskDevice->SenseData;
+    if (((*SenseDataArray)->Sense_Key == EFI_SCSI_SK_UNIT_ATTENTION) &&
+        ((*SenseDataArray)->Addnl_Sense_Code == 0x29) &&
+        ((*SenseDataArray)->Addnl_Sense_Code_Qualifier == 0)) {
+      *NeedRetry = TRUE;
+      return EFI_NOT_READY;
+    }
     return EFI_SUCCESS;
   }
 
--
2.7.4



  reply	other threads:[~2017-01-06  8:22 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-06  6:52 [PATCH 0/9] enhance UFS Haojian Zhuang
2017-01-06  6:52 ` [PATCH 1/9] Ufs: fix data direction checking Haojian Zhuang
2017-01-06  7:08   ` Tian, Feng
2017-01-06  8:33     ` Haojian Zhuang
2017-01-06  6:52 ` [PATCH 2/9] Ufs: fix to identify 32 bits address mode Haojian Zhuang
2017-01-06  7:10   ` Tian, Feng
2017-01-06  6:52 ` [PATCH 3/9] Ufs: fix the bit in UFS_HC_UTRLDBR_OFFSET register Haojian Zhuang
2017-01-06  7:18   ` Tian, Feng
2017-01-06  6:52 ` [PATCH 4/9] Ufs: fix to set UTRLBA and UTRLBAU register Haojian Zhuang
2017-01-06  8:36   ` Tian, Feng
2017-01-06  9:05     ` Haojian Zhuang
2017-01-09  1:25       ` Tian, Feng
2017-01-06  6:52 ` [PATCH 5/9] Ufs: fix to set PRDT length Haojian Zhuang
2017-01-06  6:52 ` [PATCH 6/9] Ufs: add PhyInit Haojian Zhuang
2017-01-06  7:27   ` Tian, Feng
2017-01-06  8:21     ` Haojian Zhuang
2017-01-06  8:44       ` Tian, Feng
2017-01-06  6:52 ` [PATCH 7/9] Ufs: fix initialize OCS value to 0x0F Haojian Zhuang
2017-01-06  7:26   ` Tian, Feng
2017-01-06  8:18     ` Haojian Zhuang
2017-01-06  6:52 ` [PATCH 8/9] Ufs: fix to add cache operation Haojian Zhuang
2017-01-06  8:42   ` Tian, Feng
2017-01-06  6:52 ` [PATCH 9/9] ScsiDisk: retry if device detected power failure Haojian Zhuang
2017-01-06  8:22   ` Tian, Feng [this message]
2017-01-06  8:31     ` Haojian Zhuang

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