PnP Manager System Resources allocation

NTDEV
1

Hi

I am trying to solve problem of devices get code 12 (no resources) while doing hot-plug.

My device is PCIe bridge which I connect to the target using express card.
On my downstream port I have plug-able slot.

When I boot the system with NIC device connected to the slot the NIC and the PCIe switch boot well
When I first boot with my switch and later connect the NIC to my downstream port I get code 12 (not enough resources)

Why Vista cant redistribute resources (I guess its memory )
Can I override any resource assignment lists to force vista allocating memory to the NIC

Thanks
Yossi

2

More info;
My device is PCIe switch 1-2

After reading the following article

http://support.microsoft.com/kb/942959

I set the registry HackFlags to 0x400 , One of my DS port of the PCIe switch come up with code 12
By default my DS port does not ask for any resources except from interrupt.
I notice that after setting the HackFlags to 0x400 the OS does allocate memory to my US and DS port (even though there is no device under it )
But the first DS port claim all the memory and there is no left to the second DS port

Can I force OS to allocate memory from the US port to both bridges?

Thanks
Yossi

From: xxxxx@lists.osr.com [mailto:xxxxx@lists.osr.com] On Behalf Of Yossi Leybovich
Sent: Sunday, September 28, 2008 6:26 PM
To: Windows System Software Devs Interest List
Subject: [ntdev] PnP Manager System Resources allocation

Hi

I am trying to solve problem of devices get code 12 (no resources) while doing hot-plug.

My device is PCIe bridge which I connect to the target using express card.
On my downstream port I have plug-able slot.

When I boot the system with NIC device connected to the slot the NIC and the PCIe switch boot well
When I first boot with my switch and later connect the NIC to my downstream port I get code 12 (not enough resources)

Why Vista cant redistribute resources (I guess its memory )
Can I override any resource assignment lists to force vista allocating memory to the NIC

Thanks
Yossi

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