SCSIOP_RESERVE/RELEASE_UNIT

NTDEV
1

Hello,
Any idea how to handle SCSIOP_RESERVE_UNIT and SCSIOP_RELEASE_UNIT
requests in the driver?

Thanks,
-Anand

2

Do you want to support them? Or do you want to politely tell the caller
that you don’t support them?

You might want to read the scsi spec to see how RESERVE and RELEASE are
defined by the standard.

-p

-----Original Message-----
From: AR [mailto:xxxxx@yahoo.com]
Sent: Tuesday, January 21, 2003 1:35 PM
To: NT Developers Interest List

Hello,
Any idea how to handle SCSIOP_RESERVE_UNIT and SCSIOP_RELEASE_UNIT
requests in the driver?

Thanks,
-Anand

You are currently subscribed to ntdev as: xxxxx@microsoft.com To
unsubscribe send a blank email to xxxxx@lists.osr.com

3

>> Do you want to support them?

Yes I would like to support/impliment them in our bus(miniport) driver.

Thanks for responding,
-Anand

4

If you control normal SCSI hardware then you just send the CDB out ot
the device like any other command.

If you’re not controlling SCSI devices then it’s harder. In this case
you should first make sure that your device(s) can be shared between
multiple initiators. If not then reserve/release is pointless and
you’re done.

If you support such sharing then you’ll need to read the spec to see how
reserve/release act and determine some mechanism of your own for
communcating either with the device(s) or with other intiators to
simulate the effects of reserve/release.

Sorry but a lot of this is left as an exercise for the reader.

-p

-----Original Message-----
From: AR [mailto:xxxxx@yahoo.com]
Sent: Tuesday, January 21, 2003 8:34 PM
To: NT Developers Interest List

> Do you want to support them?

Yes I would like to support/impliment them in our bus(miniport) driver.

Thanks for responding,
-Anand

You are currently subscribed to ntdev as: xxxxx@microsoft.com To
unsubscribe send a blank email to xxxxx@lists.osr.com