Stephen Hemminger wrote:
On Tue, 14 Nov 2006 23:24:04 -0500
Jeff Garzik <[email protected]> wrote:
David Miller wrote:
Is this absolutely true? I've never been sure about this point, and I
was rather convinced after reading various documents that once you
program up the MSI registers to start generating MSI this implicitly
disabled INTX and this was even in the PCI specification.
It would be great to get a definitive answer on this.
If it is mandatory, perhaps the driver shouldn't be doing it and
rather the PCI layer MSI enabling should.
pci_enable_msi() calls msi_capability_init() and that disables intx
already.
[...]
The driver shouldn't deal with this, pci_disable_msi() does.
Explicit code reference please?
AFAICS the PCI layer only touched INTx bit for PCI-Express devices.
Jeff
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