Garrett D'Amore wrote:
Hmm... I seem to recall that full MSI-X interrupt support on x86 was
either only recently added, or scheduled to be added.
What build are you using?
build 83
Actually I answered my own question: I found the function:
/* ARGSUSED */
uint_t
i_ddi_get_msix_alloc_limit(dev_info_t *dip)
{
uint_t msix_alloc_limit = ddi_msix_alloc_limit;
#if defined(__sparc)
if (ddi_prop_exists(DDI_DEV_T_ANY, dip, DDI_PROP_NOTPROM |
DDI_PROP_DONTPASS, "#msix-request")) {
msix_alloc_limit = MAX(DDI_MAX_MSIX_ALLOC,
ddi_msix_alloc_limit);
}
#endif
return (msix_alloc_limit);
}
... and, guess what, ddi_msix_alloc_limit defaults to 2! At least it's a
global and not a #define. It's a stupid default for such a high perf. box.
Paul
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