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[edk2-devel] [PATCH] MdeModulePkg/UfsPassThru : Fix UFS flag read from Query Resp UPIU

Agrawal, Sachin posted 1 patch 4 years, 7 months ago
Failed in applying to current master (apply log)
MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.c          | 5 ++++-
MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c | 5 ++++-
2 files changed, 8 insertions(+), 2 deletions(-)
[edk2-devel] [PATCH] MdeModulePkg/UfsPassThru : Fix UFS flag read from Query Resp UPIU
Posted by Agrawal, Sachin 4 years, 7 months ago 
As per UFS spec, flag value is stored in the 'last byte' of value
field. Existing code is attempting to read first byte.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2208

Test: Verified the Fix by sending command to set fPowerOnWPEn flag
and then reading it to verify the set value.

Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>

Signed-off-by: Sachin Agrawal <sachin.agrawal@intel.com>
---
 MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.c          | 5 ++++-
 MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.c b/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.c
index e8ef0c2a7a..e450f6f49d 100644
--- a/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.c
+++ b/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.c
@@ -977,7 +977,10 @@ UfsRwFlags (
   }
 
   if (Trd->Ocs == 0) {
-    *Value = (UINT8)QueryResp->Tsf.Value;
+    //
+    // The 'FLAG VALUE' field is at byte offset 3 of QueryResp->Tsf.Value
+    //
+    *Value = *((UINT8*)&(QueryResp->Tsf.Value) + 3);
   } else {
     Status = EFI_DEVICE_ERROR;
   }
diff --git a/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c b/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c
index 0b95e7dddd..93ac958f65 100644
--- a/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c
+++ b/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c
@@ -863,7 +863,10 @@ UfsGetReturnDataFromQueryResponse (
     case UtpQueryFuncOpcodeSetFlag:
     case UtpQueryFuncOpcodeClrFlag:
     case UtpQueryFuncOpcodeTogFlag:
-      CopyMem (Packet->DataBuffer, &QueryResp->Tsf.Value, sizeof (UINT8));
+      //
+      // The 'FLAG VALUE' field is at byte offset 3 of QueryResp->Tsf.Value
+      //
+      *((UINT8*)(Packet->DataBuffer)) = *((UINT8*)&(QueryResp->Tsf.Value) + 3);
       break;
     case UtpQueryFuncOpcodeRdAttr:
     case UtpQueryFuncOpcodeWrAttr:
-- 
2.14.3.windows.1


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Re: [edk2-devel] [PATCH] MdeModulePkg/UfsPassThru : Fix UFS flag read from Query Resp UPIU
Posted by Wu, Hao A 4 years, 7 months ago 
> -----Original Message-----
> From: devel@edk2.groups.io [mailto:devel@edk2.groups.io] On Behalf Of
> Agrawal, Sachin
> Sent: Monday, September 23, 2019 7:48 PM
> To: devel@edk2.groups.io
> Cc: Agrawal, Sachin; Wu, Hao A; Ni, Ray
> Subject: [edk2-devel] [PATCH] MdeModulePkg/UfsPassThru : Fix UFS flag
> read from Query Resp UPIU


When pushing the patch, I will change the subject a little bit to:
MdeModulePkg/Ufs : Fix UFS flag read from Query Resp UPIU

Other than this, the patch looks good to me:
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>

Best Regards,
Hao Wu


> 
> As per UFS spec, flag value is stored in the 'last byte' of value
> field. Existing code is attempting to read first byte.
> 
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2208
> 
> Test: Verified the Fix by sending command to set fPowerOnWPEn flag
> and then reading it to verify the set value.
> 
> Cc: Hao A Wu <hao.a.wu@intel.com>
> Cc: Ray Ni <ray.ni@intel.com>
> 
> Signed-off-by: Sachin Agrawal <sachin.agrawal@intel.com>
> ---
>  MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.c          | 5 ++++-
>  MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c | 5 ++++-
>  2 files changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.c
> b/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.c
> index e8ef0c2a7a..e450f6f49d 100644
> --- a/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.c
> +++ b/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.c
> @@ -977,7 +977,10 @@ UfsRwFlags (
>    }
> 
>    if (Trd->Ocs == 0) {
> -    *Value = (UINT8)QueryResp->Tsf.Value;
> +    //
> +    // The 'FLAG VALUE' field is at byte offset 3 of QueryResp->Tsf.Value
> +    //
> +    *Value = *((UINT8*)&(QueryResp->Tsf.Value) + 3);
>    } else {
>      Status = EFI_DEVICE_ERROR;
>    }
> diff --git a/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c
> b/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c
> index 0b95e7dddd..93ac958f65 100644
> --- a/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c
> +++ b/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c
> @@ -863,7 +863,10 @@ UfsGetReturnDataFromQueryResponse (
>      case UtpQueryFuncOpcodeSetFlag:
>      case UtpQueryFuncOpcodeClrFlag:
>      case UtpQueryFuncOpcodeTogFlag:
> -      CopyMem (Packet->DataBuffer, &QueryResp->Tsf.Value, sizeof (UINT8));
> +      //
> +      // The 'FLAG VALUE' field is at byte offset 3 of QueryResp->Tsf.Value
> +      //
> +      *((UINT8*)(Packet->DataBuffer)) = *((UINT8*)&(QueryResp->Tsf.Value)
> + 3);
>        break;
>      case UtpQueryFuncOpcodeRdAttr:
>      case UtpQueryFuncOpcodeWrAttr:
> --
> 2.14.3.windows.1
> 
> 
> 


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Re: [edk2-devel] [PATCH] MdeModulePkg/UfsPassThru : Fix UFS flag read from Query Resp UPIU
Posted by Wu, Hao A 4 years, 6 months ago 
> -----Original Message-----
> From: devel@edk2.groups.io [mailto:devel@edk2.groups.io] On Behalf Of
> Wu, Hao A
> Sent: Thursday, September 26, 2019 9:40 AM
> To: devel@edk2.groups.io; Agrawal, Sachin
> Cc: Ni, Ray
> Subject: Re: [edk2-devel] [PATCH] MdeModulePkg/UfsPassThru : Fix UFS
> flag read from Query Resp UPIU
> 
> > -----Original Message-----
> > From: devel@edk2.groups.io [mailto:devel@edk2.groups.io] On Behalf Of
> > Agrawal, Sachin
> > Sent: Monday, September 23, 2019 7:48 PM
> > To: devel@edk2.groups.io
> > Cc: Agrawal, Sachin; Wu, Hao A; Ni, Ray
> > Subject: [edk2-devel] [PATCH] MdeModulePkg/UfsPassThru : Fix UFS flag
> > read from Query Resp UPIU
> 
> 
> When pushing the patch, I will change the subject a little bit to:
> MdeModulePkg/Ufs : Fix UFS flag read from Query Resp UPIU
> 
> Other than this, the patch looks good to me:
> Reviewed-by: Hao A Wu <hao.a.wu@intel.com>


Patch pushed via commit cd70b1a71d.

Best Regards,
Hao Wu


> 
> Best Regards,
> Hao Wu
> 
> 
> >
> > As per UFS spec, flag value is stored in the 'last byte' of value
> > field. Existing code is attempting to read first byte.
> >
> > REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2208
> >
> > Test: Verified the Fix by sending command to set fPowerOnWPEn flag
> > and then reading it to verify the set value.
> >
> > Cc: Hao A Wu <hao.a.wu@intel.com>
> > Cc: Ray Ni <ray.ni@intel.com>
> >
> > Signed-off-by: Sachin Agrawal <sachin.agrawal@intel.com>
> > ---
> >  MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.c          | 5 ++++-
> >  MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c | 5 ++++-
> >  2 files changed, 8 insertions(+), 2 deletions(-)
> >
> > diff --git a/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.c
> > b/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.c
> > index e8ef0c2a7a..e450f6f49d 100644
> > --- a/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.c
> > +++ b/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.c
> > @@ -977,7 +977,10 @@ UfsRwFlags (
> >    }
> >
> >    if (Trd->Ocs == 0) {
> > -    *Value = (UINT8)QueryResp->Tsf.Value;
> > +    //
> > +    // The 'FLAG VALUE' field is at byte offset 3 of QueryResp->Tsf.Value
> > +    //
> > +    *Value = *((UINT8*)&(QueryResp->Tsf.Value) + 3);
> >    } else {
> >      Status = EFI_DEVICE_ERROR;
> >    }
> > diff --git a/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c
> > b/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c
> > index 0b95e7dddd..93ac958f65 100644
> > --- a/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c
> > +++ b/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c
> > @@ -863,7 +863,10 @@ UfsGetReturnDataFromQueryResponse (
> >      case UtpQueryFuncOpcodeSetFlag:
> >      case UtpQueryFuncOpcodeClrFlag:
> >      case UtpQueryFuncOpcodeTogFlag:
> > -      CopyMem (Packet->DataBuffer, &QueryResp->Tsf.Value, sizeof
> (UINT8));
> > +      //
> > +      // The 'FLAG VALUE' field is at byte offset 3 of QueryResp->Tsf.Value
> > +      //
> > +      *((UINT8*)(Packet->DataBuffer)) = *((UINT8*)&(QueryResp-
> >Tsf.Value)
> > + 3);
> >        break;
> >      case UtpQueryFuncOpcodeRdAttr:
> >      case UtpQueryFuncOpcodeWrAttr:
> > --
> > 2.14.3.windows.1
> >
> >
> >
> 
> 
> 


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