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RE: CPCI: RE: Message Signalled Interrupt Support
I plan to support MSI in a future revision of a card I am developing now.
Likely to not be a mass market however as we serve a niche market.
From: Lame Brooks-G14738 [mailto:firstname.lastname@example.org]
Sent: Monday, February 21, 2000 11:13 AM
Cc: 'PCISIGList'; PICMGCPCI Reflector (E-mail)
Subject: CPCI: RE: Message Signalled Interrupt Support
MSI appears extremely useful in applications with many sources of interrupts
in a device and/or many devices on the PCI bus. It also looks useful in
slave processor applications. Motorola may use MSI in a new motherboard
peripheral device currently under development. However, I am a little out
of touch with the current thoughts on MSI with CompactPCI
peripheral/slave/multiple-host processors; so, you may look for some other
PICMG guys to respond.
Crisis/Design Engineer, Motorola Monterey Design Center
> -----Original Message-----
> From: Brad Hosler [mailto:email@example.com]
> Sent: Sunday, 20 February, 2000 15:29
> To: firstname.lastname@example.org
> Subject: Message Signalled Interrupt Support
> PCI 2.2 defines a Message Signalled Interrupt (MSI) feature,
> to allow the
> 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, SW
> may be pulled due to lack of validation.
> Are there any cards available or that will be available that
> will support
> the MSI capability?