[openib-general] Performance Degradation with OFED v. Voltaire

[Bernadat, Philippe]

> > [root at axis21_EL4_u3 o2ib]$ diff lspci_axis19_vib lspci_axis21_ofed
> > 30c30
> > <       Capabilities: [40] MSI-X: Enable+ Mask- TabSize=32
> > ---
> > >       Capabilities: [40] MSI-X: Enable- Mask- TabSize=32
> 
> Might the MSI-X difference explain it ?

Yes it went away when I added the option (see lines below)

> > 
> > So I added the ib_mthca msi_x=1 option.
> > It didn't help.
> > 
> > So the only remaining difference now is:
> > 
> > [root at axis21_EL4_u3 o2ib]$ diff lspci_axis19_vib lspci_axis21_ofed 
> > 39c39
> > < 50: 03 60 ff ff 11 11 00 00 00 00 00 00 00 00 00 00
> > ---
> > > 50: 03 60 ff 7f 11 11 00 00 00 00 00 00 00 00 00 00
> > 
> > No idea what this is.
> >