[openib-general] VPD capabilty address flag

[Roland Dreier]

    Robert> On a gen2 system when using /proc/bus/pci/nn/mm.m to
    Robert> access the PCI configuration space of an HCA in an attempt
    Robert> to read the VPD for the adapter, the flag bit in the VPD
    Robert> address fails to set after a reasonable delay after
    Robert> writing a new address and the VPD data are invalid.  Other
    Robert> adapters (e.g. Broadcom NICs) that also have a VPD do set
    Robert> the flag bit and return valid VPD data. Any ideas?

This isn't a gen2 issue -- the driver is irrelevant, since this is
purely a PCI operation that would work if no driver is loaded.
Unfortunately I don't know much about the behavior of PCI VPD with
Mellanox HCAs so I can't help you.

 - R.