MSI-X vector allocation failure in upstream kernel

[Anirban Chakraborty]

Hi All,

I am trying to test qlcnic driver (for 10Gb QLogic network adapter) on a Power 6 system 
(IBM P 520, System type 8203) with upstream kernel and I do see that the kernel is 
not able to allocate any MSI-X vectors. The driver requests for 4 vectors in pci_enable_msix,
which returns 2. The driver again attempts, this time for 2 vectors but the kernel can't allocate 
and it returns a value of 0xfffffffd. I upgraded the system FW to 01EL350 (from 01EL340)
 just to make sure if MSI-X is enabled in the system. Is there anything that I am missing? 

Any pointers will be highly appreciated.


thanks,
Anirban Chakraborty