Paul,
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?
Tom
----- Original Message -----
From: "Paul Durrant" <pdurr...@gmail.com>
To: "Tom Chen" <chento...@hotmail.com>
Cc: "Liu, Jiang" <jiang....@intel.com>; "Aubrey Li"
<aub...@opensolaris.org>; <opensolaris-discuss@opensolaris.org>
Sent: Wednesday, March 18, 2009 8:01 AM
Subject: Re: [osol-discuss] MSIX interrupt allocation
Tom Chen wrote:
To allocate more than two MSI-X interrupts for a device on x86 system,
you may use kmdb or
/etc/system to override value of ddi_msix_alloc_limit.(I haven't test it,
just in theory it should work.)
I've run with the override in /etc/system for a while now and it's fine.
One other thing to check... make sure that 'apic_intr_policy' is set to 1
(this seems to be the default in the source these days, it used to be
zero) to make sure that your interrupts are distributed across CPUs.
Paul
--
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Paul Durrant
http://www.linkedin.com/in/pdurrant
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