Messages in this thread | | | Subject | Re: [PATCH 1/2] msi: Invert the sense of the MSI enables. | From | Roland Dreier <> | Date | Fri, 25 May 2007 08:42:39 -0700 |
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> > - In spec hardware does not require MSI to generate interrupts > > Which leaves enabling MSI optional. > > Actually at least the Qlogic/Pathscale PCI Express ipath adapters > cannot generate INTx interrupts -- they definitely do require MSI to > operate.
Oh yeah... when I first found out about this, I rechecked the PCI Express spec and found that in fact legacy INTx interrupts are optional. So the ipath adapters that require MSI do conform to the spec.
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