How to ccess other driver's kstat in kernel.

I am writing a kernel driver, which will be installed on top of a NIC driver. I am trying to access the NIC's kstat structure (or values) from my driver. I can't use functions kstat_lookup() and kstat_data_lookup(). They are for user applications.
I don't know how. I need help from your expertise to resolve this
Thank you very much in advance,
-Richard-

Hi there,
I don't know if this works - I haven't tried it yet - but have you tried talking to the the kstat driver from yours using the layered driver interface in s10 and issuing KSTAT_IOC_READ ioctls to it? See ldi_open_by_name. for a discussion about layered drivers.
Regards,
Ralph

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scratch disk
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'MY
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Message was edited by: somanna

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- This occurs WITHOUT the presence of anything connected to the computer other then a display.
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Further Troubleshooting
- Reset SMU / NVRAM
- Replaced RAM (16GB of replacement Ram with the original 4GB of Apple Ram that came with Machine)
- As noted, Added a 3rd drive to the system, yielding same results of 2nd drive.
I wish I COULD get this into Verbose mode, from a Hard Power Up, with one of these other drives selected, see what it's pausing on. Someone asked me if it's happening without the Digidesign Cards in the computer (The only outside Hardware), it doesn't "Seem related", and I really don't want to pull the HD3 out of it, until I've tried everything else.
I remember this exact "Grey Screen Problem" happening in about 2005 or 2006 on my G5 HD2 PCIx System. We had it Dual boot, and all the engineers knew that when you "Powered up" this unit, you had to hold Option if you didn't want to wait 15 minutes. And thats how we powered up that system for years (They still do, it's still in operation)
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I can hook up ANY OS installed Drive, and "RESTART" the computer off it - but can't "Power the system up from it", without holding Option down, for All Internal, and External Bootable drives, EXCLUDING my original System Drive, "Macintosh HD" - which will "Power Up" and immediately Boot the system, when it is selected.
Any other ideas ?
System... Harpertown 8 Core 2.8Ghz Machine
Hardware Overview:
Model Name: Mac Pro
Model Identifier: MacPro3,1
Processor Name: Quad-Core Intel Xeon
Processor Speed: 2.8 GHz
Number Of Processors: 2
Total Number Of Cores: 8
L2 Cache (per processor): 12 MB
Memory: 14 GB
Bus Speed: 1.6 GHz
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SMC Version (system): 1.25f4
Serial Number (system):
Hardware UUID: 6EED8ADD-7044-5DF8-B577-9B4AC4F9E955
Message was edited by: *KingFish*

Hey Kappy, thanks so much for your reply and ideas. Sadly this goes beyond "Just the 2 Drives", this computer behaves this way, with ANY other device set to Startup Volume in System Preferences, including FW, USB drives with OS X installations, other Intel Mac's in Target Disk Mode, or Installation CD's - which will ALL boot, and run THIS mac, selecting them in "Option Boot" - but not "POWER UP BOOT", when selected in System Preferences, in OS X. All of these other Volumes, devices and CD's will power up / Boot several OTHER Mac's with no problem - this problem seems to be isolated to this computer.
As far as your ideas about these 2 drives exclusively go...
*Re: 1.* When I decided to try a 3rd drive *in the system* as noted above in my troubleshooting, I not only selected a different manufacturer (Seagate), but I "Double checked" my Partitioning work / Formatting, making ABSOLUTE certain, to partition the drive GUID and format it Journaled / Extended. All drives are reporting identical "Status" in all of these departments in Disk Utility.
*Re: 2.* The OS X Installer not only completed Successfully from the Retail OS X DVD, the COMBO 10.6.3 Update from Apple's Site ran successfully, the Disk with the installation Verifies, in Disk Utility, Permissions report "Repaired", the system "Restarts and Runs" flawlessly off this partition, simply will not "Start / Power Up" from this volume without the 10 minute "Grey Screen Wait" that I mention in the post.
*Re: 3.* This was not cloned, it is a fresh Partition, Format, Instal & Update
*Re: 4.* There are now 2 different drives, from 2 diff mfg's, one Brand new out of the box, exhibiting the same behavior as a completely different drive / installation of OS X - leading me to suspect that this is a "System ISsue"
*Re: 5.* One Drive is a new Seagate, other drive is the WD that shipped w/ the Mac, reporting, reading, testing and verifying fine. - Oddly enough, the only drive NOT displaying this behavior, when selected as the Startup Disk, is a Western Digital.
*Re: OP*
Perhaps a clue, is my mention that this machine will exhibit this "10 minute Grey Screen", attempting to "Power up" from ANY OTHER volume, including FW and USB drives with OS X Installations, OS X Installation DVD's - when Selected in the System Preferences, as the Startup Volume, the computer is "Shut Down" - then "Powered up from Cold"
All of these OS's will run, and operate, even "Restart" just fine, once they are selected by Holding Option, and selecting them.
To repeat... when ANY of these OTHER volumes are specified in the System Preferences as the startup Volume, I can NOT get into Verbose mode, only 2 options
1. Grey Screen for 10 minutes
2. Hold Option and get a list of bootable devices.
Message was edited by: *KingFish*

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