OSR's ntdev List: StorPort SRB timeout

Message 1 of 4

19 Jun 12 01:16

David Zeng

xxxxxx@gmail.com

Join Date: 28 May 2012

Posts To This List: 37

StorPort SRB timeout

Hi, All, I am writing a miniport driver for a raid controller. I have some questions about the SRB timeout: I send an IOCTL via a User-mode application as following: PSRB_IO_CONTROL pSic; pSic->HeaderLength = sizeof(SRB_IO_CONTROL); pSic->Length = cmdSize-sizeof(SRB_IO_CONTROL); pSic->Timeout = 5; pSic->ControlCode = xxxxxxxx; memcpy(pSic->Signature,UniqueString,strlen(UniqueString)); ........ rc = DeviceIoControl(fd, IOCTL_SCSI_MINIPORT, // operation to perform pSic, cmdSize, // input buffer pSic, cmdSize, // output buffer &bytesReturned, // # bytes returned (LPOVERLAPPED) NULL); // synchronous I/O Here I set the timeout value to 5 seconds. The driver received this request, and ignore it(returned the StartIo without calling StorPortNotification(RequestComplete)). But 5 seconds later, nothing happened. The User-mode app is still hanged. I want to know for SRB with SRB_FUNCTION_IO_CONTROL: 1. whether the StorPort will trigger a timeout and complete the SRB automatically? 2. If the SRB timeout, does StorPort send a SRB_FUNCTION_RESET_LOGICAL_UNIT function? I tried SRB with SRB_FUNCTION_EXECUTE_SCSI, StorPort will send SRB_FUNCTION_RESET_LOGICAL_UNIT after timeout. Thanks for your time! -- Best regards, David Zeng --

Message 2 of 4

24 Jun 12 21:21

David Zeng

xxxxxx@gmail.com

Join Date: 28 May 2012

Posts To This List: 37

Re: StorPort SRB timeout

Anyone know this about the IOCTL_SCSI_MINIPORT timeout? Pls give me some help! On Tue, Jun 19, 2012 at 1:16 PM, zeng xiaohua <xxxxx@gmail.com> wrote: > Hi, All, > > I am writing a miniport driver for a raid controller. I have some > questions about the SRB timeout: > I send an IOCTL via a User-mode application as following: > PSRB_IO_CONTROL pSic; > pSic->HeaderLength = sizeof(SRB_IO_CONTROL); > pSic->Length = cmdSize-sizeof(SRB_IO_CONTROL); > pSic->Timeout = 5; > pSic->ControlCode = xxxxxxxx; <...excess quoted lines suppressed...> -- Best regards, David Zeng --

Message 3 of 4

24 Jun 12 23:43

Girish Basrur

xxxxxx@hotmail.com

Join Date: 02 Jul 2009

Posts To This List: 65

RE: StorPort SRB timeout

Storport does not time the requests which came in as IOCTLs (SRB_FUNCTION_IO_CONTROL) and there is no recovery mechanism (like hierarchical resets) in-built.

Message 4 of 4

25 Jun 12 00:50

David Zeng

xxxxxx@gmail.com

Join Date: 28 May 2012

Posts To This List: 37

Re: StorPort SRB timeout

Thanks for you answer! But in the following link of msdn, the description of Timeout filed of SRB_IO_CONTROL says Miniport drivers are not required to time requests because the port driver does. http://msdn.microsoft.com/en-us/library/windows/hardware/ff566339(v=vs.85).aspx So if the documents is wrong, I have to time the IOCTLs requests in the miniport. But Storport just provide one timer through StorPortNotification(RequestTimerCall). Is there any suggestions if I want to time the IOCTLs? BTW, the version of DDK I used is 7600.16385.1. On Mon, Jun 25, 2012 at 11:41 AM, <xxxxx@hotmail.com> wrote: > Storport does not time the requests which came in as IOCTLs > (SRB_FUNCTION_IO_CONTROL) and there is no recovery mechanism (like > hierarchical resets) in-built. > > > --- > NTDEV is sponsored by OSR > > For our schedule of WDF, WDM, debugging and other seminars visit: > http://www.osr.com/seminars <...excess quoted lines suppressed...> -- Best regards, David Zeng --

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