Where is SCSIControllerDriverKit now?

Question

Created Mar ’21

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Hi there!
There was a presentation of the SCSI support in DriverKit on 2020 WWDC: https://developer.apple.com/videos/play/wwdc2020/10210/

Currently, the Xcode 12.4 (latest) has nothing regarding SCSI in DriverKit folders.
Documentation says it is still in beta: https://developer.apple.com/documentation/scsicontrollerdriverkit

So I've downloaded xcode 12.5 beta, where the driverkit 20.4 beta resides (according to https://developer.apple.com/support/xcode/)

And what we have there? Just
Kernel.framework/Versions/A/Headers/DriverKit/IOReturn.h
65:#define sub_iokit_scsi err_sub(16)

And nothing more!

So, the question is: do we have any way to use SCSI devices now on BigSur? Could I develop something for it with DriverKit, or should I use kext-approach for now, and wait for SCSI DriverKit support to be released indeed?

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Answer 1

FranticRain OP

Mar ’21

If you're using the Xcode 12.5 beta, you should be able to add the "SCSIControllerDriverKit" framework to your dext, and then include the necessary files in your code using "#include <SCSCIControllerDriverKit/...>" Do you not see these options in Xcode 12.5 beta 3?

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Answer 2

erich-areca OP

Jan ’22

Xcode 1300, Xcode 1304, Xcode 1321

#include <os/log.h> #include <time.h>

#include <DriverKit/DriverKit.h> #include <DriverKit/IOUserServer.h> #include <DriverKit/IOLib.h> #include <DriverKit/IOKitKeys.h> #include <DriverKit/storage/IOStorageProtocolCharacteristics.h> #include <DriverKit/storage/IOStorageDeviceCharacteristics.h> #include <PCIDriverKit/IOPCIDevice.h> #include <PCIDriverKit/IOPCIFamilyDefinitions.h> #include <SCSIControllerDriverKit/IOUserSCSIParallelInterfaceController.h> #include <SCSIControllerDriverKit/IOSCSIParallelControllerCharacteristics.h>

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Answer 3

erich-areca OP

Jan ’22

The dext user space driver I wrote has loaded and got my SCSI controller working. Although there are still some imperfections, on the whole, such a new development environment really requires some patience to adapt.

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Answer 4

erich-areca OP

Oct ’22

My project is hardware raid 'user space driver' . My driver has now completed the io stress test. All of you can work at MacOS12.6 and Xcode13.21

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