Tom Chen wrote:
Thank you for your advice, I just added "set ddi_msix_alloc_limit = 8"
to the bottom of /etc/system, but doesn't work, still 2 vectors. Do I
need to do something extra in my interrupt allocation code? Is there any
code in OpenSolaris can be a good reference?
Here's what I use in my /etc/system:
set ddi_msix_alloc_limit = <number of CPUs>
set pcplusmp:apic_msix_max = <number of CPUs>
set pcplusmp:apic_intr_policy = 1
The 2nd of these appears to be obsolete from recent inspection of the
code. Try trapping the entry to apic_alloc_msix_vectors() and look at
the 3rd argument; this is the number of vectors being requested. If this
does not match what you asked for then some limit has already been
applied (although I cannot find any limit other than
ddi_msix_alloc_limit). If it does match what you ask for then one can
only assume that there are not sufficient vectors with the requested
priority to fulfil your request.
Paul
--
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Paul Durrant
http://www.linkedin.com/in/pdurrant
===================================
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