Greg Freemyer wrote:
On Dec 2, 2007 10:07 PM, Philip Langdale <philipl@xxxxxxxxx> wrote:
Hi all,
At least for my hardware (MCP55), the sata controller supports MSI
and it seems that turning it on is as simple as inserting the call
to pci_enable_msi - after that it Just Works(tm).
Are there any gotchas that I'm missing? Would a patch to do this
be accepted?
--phil
I don't know if it is relevant, but I had to disable MSI to get a
MCP55 NIC to work under 2.6.22.
MSI is pretty flaky, but we default it to 'on' for AHCI, which is the
"enhanced mode" side of the sata_nv chip.
So it is likely that it works on newer boards -- but even though Mark
Lord's response was mistaken (he thought sata_mv was being discussed),
he was right too... sata_nv has stability problems and I would prefer
not to enable MSI just yet, until we cure the other problems.
Jeff
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