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Re: Message Signalled Interrupt Support
At 05:29 PM 2/20/00 , Brad Hosler wrote:
>PCI 2.2 defines a Message Signalled Interrupt (MSI) feature, to allow the card
>to issue an interrupt as a PCI write message.
>Its presenting a "who-comes-first" scenario. There are SW developers that
>want to support this feature; however, they want to know if there are IHV's
>who are adding support to their cards. If there is no IHV interest,
>may be pulled due to lack of validation.
>Are there any cards available or that will be available that will support
>the MSI capability?
PCI-X requires devices that generate interrupts to support MSI (with a
64 bit message address). MSI is still optional for platforms and
system software but the required availability should make support in
systems much more likely.
Carl Jackson Hewlett-Packard Company
voice: (972)497-4268 High Performance Systems Lab
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