Re: DisconnectController API not working.

[Amit kumar <akamit91@hotmail.com>]

EFI_STATUS
EFIAPI
UefiMain (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
    EFI_STATUS Status;


      gBS->DisconnectController (
       ConvertHandleIndexToHandle (0x175),
       ConvertHandleIndexToHandle (0x176),
       NULL);
   return (Status);

 }


________________________________
From: edk2-devel <edk2-devel-bounces@lists.01.org> on behalf of Amit kumar <akamit91@hotmail.com>
Sent: Wednesday, June 28, 2017 11:41:53 PM
To: TVKR
Cc: edk2-devel@lists.01.org
Subject: Re: [edk2] DisconnectController API not working.

Try this; just a quick thing




EFI_STATUS
EFIAPI
UefiMain (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
    EFI_STATUS Status;


      gBS->DisconnectController (
       ConvertHandleIndexToHandle (175),
       ConvertHandleIndexToHandle (176),
       NULL);
   return (Status);

 }


________________________________
From: TVKR <tresko1@gmail.com>
Sent: Wednesday, June 28, 2017 11:31:46 PM
To: Amit kumar
Cc: edk2-devel@lists.01.org
Subject: Re: [edk2] DisconnectController API not working.

Yes, the shell's in-built command disconnect (disconnect 175 176) worked but DisconnectController call from the application still did not work.

On Wed, Jun 28, 2017 at 12:56 PM, Amit kumar <akamit91@hotmail.com<mailto:akamit91@hotmail.com>> wrote:

okay, os tell me , did you try  "disconnect 175 176" in UEFI shell ?

________________________________
From: TVKR <tresko1@gmail.com<mailto:tresko1@gmail.com>>
Sent: Wednesday, June 28, 2017 11:21:34 PM

To: Amit kumar
Cc: edk2-devel@lists.01.org<mailto:edk2-devel@lists.01.org>
Subject: Re: [edk2] DisconnectController API not working.

Sorry, I wasn't clear in my last email. No it did not hang. The 'reconnect -r' command completed successfully (no errors reported on screen).

On Wed, Jun 28, 2017 at 12:50 PM, Amit kumar <akamit91@hotmail.com<mailto:akamit91@hotmail.com>> wrote:

Did it hang ?

________________________________
From: TVKR <tresko1@gmail.com<mailto:tresko1@gmail.com>>
Sent: Wednesday, June 28, 2017 10:45:13 PM
To: Amit kumar
Cc: edk2-devel@lists.01.org<mailto:edk2-devel@lists.01.org>

Subject: Re: [edk2] DisconnectController API not working.

Thanks for the suggestion Amit. I tried the reconnect -r but it doesn't seem to help.

On Wed, Jun 28, 2017 at 10:29 AM, Amit kumar <akamit91@hotmail.com<mailto:akamit91@hotmail.com>> wrote:
Hi Tresko,
I looks like there is no problem with your implementation, as was the case with me.
I can suggest you a quick trick here, if it won’t work I will help you further which might take a while.
Follow the steps below.
1. Go to refi shell
2. Reconnect -r
3. If the sysytem hangs.
4. Try to update your BIOS/UEFI to latest (as I had noticed the eariler BIOS/UEFI had some some problem which normally gets fixed with updates).
5. After update once again try  Reconnect -r.
6. If theres a no hang restart the system and now you can try your app or just give disconnect <ControllerHandeIndex> in uefi shell.
7. If still I doesn’t work you can ping me I might suggest the other way around.

Amit

On Jun 28, 2017, at 8:05 PM, TVKR <tresko1@gmail.com<mailto:tresko1@gmail.com>> wrote:

Hi Amit,

Here is the output. It is the call 'gBS->DisconnectController (ControllerHandle, NULL, NULL)' (where ControllerHandle=7219EA98) that doesn't seem to correctly work.

FS0:\> drivers
Output Truncated..
176 07042200 B Y Y   1   1 Intel(R) PRO/1000 7.3.18 PCI-E      PciRoot(0x0)/Pci(0x2,0x3)/Pci(0x0,0x0)/Offset(0x1D200,0x3E9FF)
178 07042200 B Y Y   1   1 Intel(R) PRO/1000 7.3.18 PCI-E      PciRoot(0x0)/Pci(0x2,0x3)/Pci(0x0,0x1)/Offset(0x1D200,0x3E9FF)

FS0:\> dh 176 -d -v
176: 7219E798
DriverVersion
0x00020028
EfiDriverHealthProtocolGuid
DriverConfiguration
DriverDiagnostics2
ComponentName2
DriverDiagnostics
ComponentName
DriverBinding
ImageDevicePath
LoadedImage
     Revision......: 0x00001000
     ParentHandle..: 72B70A18
     SystemTable...: 788FEF18
     DeviceHandle..: 7219EA98
     FilePath......: 7219E998
     OptionsSize...: 0
     LoadOptions...: <null string>
     ImageBase.....: 776A0000
     ImageSize.....: 555E0
     CodeType......: EfiBootServicesCode
     DataType......: EfiBootServicesData
     Unload........: 776A0708

     Child[176]        : Intel(R) PRO/1000 7.3.18 PCI-E
   Driver Image Name  : Offset(0x1D200,0x3E9FF)
   Driver Version     : 07031800
   Driver Type        : Bus
   Configuration      : YES
   Diagnostics        : YES
   Child Controllers  :
     Ctrl[175]         : PciRoot(0x0)/Pci(0x2,0x3)/Pci(0x0,0x0)
     Child[219]        : Intel Ethernet Server Adapter I350-T2


FS0:\> dh 175 -d -v
175: 7219EA98
UnknownDevice
UnknownDevice
BusSpecificDriverOverride
LoadFile2
PCIIO
DevicePath
PciRoot(0x0)/Pci(0x2,0x3)/Pci(0x0,0x0)
   Controller Name    : PciRoot(0x0)/Pci(0x2,0x3)/Pci(0x0,0x0)
   Device Path        : PciRoot(0x0)/Pci(0x2,0x3)/Pci(0x0,0x0)
   Controller Type    : BUS
   Configuration      : NO
   Diagnostics        : NO
   Managed by         :
     Drv[176]          : Intel(R) PRO/1000 7.3.18 PCI-E
   Parent Controllers :
     Parent[75]       : PciRoot(0x0)
   Child Controllers  :
     Child[219]        : Intel Ethernet Server Adapter I350-T2


Thanks

On Wed, Jun 28, 2017 at 9:07 AM, Amit kumar <akamit91@hotmail.com<mailto:akamit91@hotmail.com>> wrote:

Hi Tresko,

>Hi Amit,

>I am seeing the exact same issue on my system with DisconnectController. The shell command 'disconnect' works but when I use the gBS->DisconnectController >call from my application it doesn't seem to really disconnect the same controller (even though the call returns SUCCESS) and it still appears to be managed by >driver. I even checked the ControllerHandle passed and it looks correct. Were you able to resolve this eventually?


Yes i was able to resolve it. It might be helpful if you can tell me the output of dh -d <handle> command.

Thanks

Amit


________________________________
From: TVKR <tresko1@gmail.com<mailto:tresko1@gmail.com>>
Sent: Wednesday, June 28, 2017 6:06:11 PM
To: edk2-devel@lists.01.org<mailto:edk2-devel@lists.01.org>; akamit91@hotmail.com<mailto:akamit91@hotmail.com>

Subject: Re: [edk2] DisconnectController API not working.

BTW, I ported the disconnect code (under ShellPkg\Library\UefiShellDriver1CommandsLib) to a standalone application and it fails too. Looks like there is something else in the shell app that is taking care of properly disconnecting the controller.

Thanks

On Tue, Jun 27, 2017 at 5:54 PM, TVKR <tresko1@gmail.com<mailto:tresko1@gmail.com>> wrote:
Hi Amit,

I am seeing the exact same issue on my system with DisconnectController. The shell command 'disconnect' works but when I use the gBS->DisconnectController call from my application it doesn't seem to really disconnect the same controller (even though the call returns SUCCESS) and it still appears to be managed by driver. I even checked the ControllerHandle passed and it looks correct. Were you able to resolve this eventually?


Thanks

-----Original Message-----
From: edk2-devel [mailto:edk2-devel-bounces at lists.01.org<https://lists.01.org/mailman/listinfo/edk2-devel>] On Behalf Of Amit kumar
Sent: Tuesday, April 4, 2017 12:07 AM
To: Tian, Feng <feng.tian at intel.com<https://lists.01.org/mailman/listinfo/edk2-devel>>
Cc: edk2-devel at lists.01.org<https://lists.01.org/mailman/listinfo/edk2-devel>
Subject: Re: [edk2] DisconnectController API not working.

No i am not trying to disconnect USB controller in use.

________________________________
From: Tian, Feng <feng.tian at intel.com<https://lists.01.org/mailman/listinfo/edk2-devel>>
Sent: Wednesday, April 5, 2017 8:21:36 AM
To: Andrew Fish; Amit kumar
Cc: edk2-devel at lists.01.org<https://lists.01.org/mailman/listinfo/edk2-devel>; Tian, Feng
Subject: RE: [edk2] DisconnectController API not working.

Kumar,

Do "map -r" at first please.


PS: for the issue you encounter, are you trying to disconnect the usb controller in use? Please note at this time you are reading the file from usb key. It means the disconnect will never succeed.

Thanks
Feng

-----Original Message-----
From: edk2-devel [mailto:edk2-devel-bounces at lists.01.org<https://lists.01.org/mailman/listinfo/edk2-devel>] On Behalf Of Andrew Fish
Sent: Tuesday, April 4, 2017 12:07 AM
To: Amit kumar <akamit91 at hotmail.com<https://lists.01.org/mailman/listinfo/edk2-devel>>
Cc: edk2-devel at lists.01.org<https://lists.01.org/mailman/listinfo/edk2-devel>
Subject: Re: [edk2] DisconnectController API not working.


> On Apr 3, 2017, at 2:58 AM, Amit kumar <akamit91 at hotmail.com<https://lists.01.org/mailman/listinfo/edk2-devel>> wrote:
>
> Hi Andrew ,
>
> I did some testing and found out, same code works fine on Server boards but it fails on desktop boards.
>

Servers tend to connect less things as it can take a long time.

> I Have double checked the ControllerHandle by printing its handle index using ConvertHandleToHandleIndex(ControllerHandle), the  ControllerHandle looks correct.
>
>
> I have one new query;
>
> i have made a startup.nsh file in which i am issuing load driver.efi , i am getting file not found.
>
> i have also tried using load fs0:driver.efi, and again i get  file not found.  I have been trying to run this script from internal shell as well as usb shell.
>

Does that command work if you boot the shell?

Thanks,

Andrew Fish

>
> Regards
>
> Amit Kumar
>
> ________________________________
> From: afish at apple.com<https://lists.01.org/mailman/listinfo/edk2-devel> <afish at apple.com<https://lists.01.org/mailman/listinfo/edk2-devel>> on behalf of Andrew Fish
> <afish at apple.com<https://lists.01.org/mailman/listinfo/edk2-devel>>
> Sent: Friday, March 31, 2017 10:42:08 PM
> To: Amit kumar
> Cc: edk2-devel at lists.01.org<https://lists.01.org/mailman/listinfo/edk2-devel>
> Subject: Re: [edk2] DisconnectController API not working.
>
>
> On Mar 31, 2017, at 5:26 AM, Amit kumar <akamit91 at hotmail.com<https://lists.01.org/mailman/listinfo/edk2-devel><mailto:akamit91 at hotmail.com<https://lists.01.org/mailman/listinfo/edk2-devel>>> wrote:
>
>
> Hi ,
>
> I am trying to disconnect a controller from the usb mass storage
> driver, for which i am using
>
>   Status = gBS->DisconnectController (
>     ControllerHandle,
>     NULL,
>     NULL
>     );
>
> after the call i get Status = SUCCESS , but when i run drivers command in shell, i find it still being manged by the same old driver handle.
> Although when i run disconnect command from shell (e.g disconnect 163
> ...output disconnect(163,0,0):Status = SUCCESS) it works as expected and detaches the controller from the driver.
> Can some body point me out what could be the reason.
>
> Amit,
>
> It is always good to double check you are using the right ControllerHandle.
>
> Sequence of events matters. There are boot flows and Shell commands that do ConnectController.
> ~/work/src/edk2/ShellPkg(master)>git grep ConnectController
> Library/UefiShellDebug1CommandsLib/LoadPciRom.c:402:    gBS->ConnectController (HandleBuffer[Index], NULL, NULL, TRUE);
> Library/UefiShellDriver1CommandsLib/Connect.c:54:        Status = gBS->ConnectController (Handle, NULL, RemainingDevicePath, FALSE);
> Library/UefiShellDriver1CommandsLib/Connect.c:95:    gBS->ConnectController (RootBridgeHandleBuffer[RootBridgeIndex], NULL, NULL, FALSE);
> Library/UefiShellDriver1CommandsLib/Connect.c:116:ConnectControllers (
> Library/UefiShellDriver1CommandsLib/Connect.c:150:  // This is where we call the gBS->ConnectController function.
> Library/UefiShellDriver1CommandsLib/Connect.c:158:      Status = gBS->ConnectController(*HandleWalker, DriverHandleList, NULL, Recursive);
> Library/UefiShellDriver1CommandsLib/Connect.c:167:    Status = gBS->ConnectController(ControllerHandle, DriverHandleList, NULL, Recursive);
> Library/UefiShellDriver1CommandsLib/Connect.c:298:                Status = gBS->ConnectController (
> Library/UefiShellDriver1CommandsLib/Connect.c:354:ConvertAndConnectCon
> trollers (
> Library/UefiShellDriver1CommandsLib/Connect.c:391:  return (ConnectControllers(Handle1, Handle2, Recursive, Output, (BOOLEAN)(Handle2 != NULL && Handle1 != NULL)));
> Library/UefiShellDriver1CommandsLib/Connect.c:536:          Status = ConvertAndConnectControllers(Handle1, Handle2, ShellCommandLineGetFlag(Package, L"-r"), (BOOLEAN)(Count!=0));
> Library/UefiShellDriver1CommandsLib/DrvCfg.c:492:  EFI_HANDLE  ConnectControllerContextOverride[2];
> Library/UefiShellDriver1CommandsLib/DrvCfg.c:514:    ConnectControllerContextOverride[0]  = DriverImageHandle;
> Library/UefiShellDriver1CommandsLib/DrvCfg.c:515:    ConnectControllerContextOverride[1]  = NULL;
> Library/UefiShellDriver1CommandsLib/DrvCfg.c:516:    gBS->ConnectController (ControllerHandle, ConnectControllerContextOverride, NULL, TRUE);
> Library/UefiShellLevel2CommandsLib/Load.c:52:    Status = gBS->ConnectController (HandleBuffer[Index], NULL, NULL, TRUE);
>
>
> Thanks,
>
> Andrew Fish
>
> _______________________________________________
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