Re: PCIE

[Manu Abraham <abraham.manu@gmail.com>]

Roland Dreier wrote:
>  > >> Another question would be if the device supports multiple messages, MSIX
>  > >> should be used ?
>  > > 
>  > > Yes. Assuming the device supports multiple MSI-X messages.
> 
> At least on my device (PCI ID 1131:7162) there is no MSI-X capability,
> so that's not an option for you.  The current Linux implementation
> does not support more than one MSI interrupt, so you just get one
> interrupt with pci_enable_msi().

This would mean MSI or MSI-X ?  A bit confused now.

• MSI capability
- 32 different messages
- programmable ID in MSI message data field
- programmable TC in MSI message address field


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