Date: Tue, 21 Mar 2017 14:01:44 +0000 From: John <jwd@FreeBSD.org> To: FreeBSD-SCSI <freebsd-scsi@FreeBSD.org> Subject: mpr driver allocating 1 irq? Message-ID: <20170321140144.GA25836@FreeBSD.org>
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Hi Folks,
The following define is in sys/dev/mpr/mprvar.h:
#define MPR_MSI_COUNT 1
Is there a particular reason it's hard-coded to 1 and
not a tunable?
if ((sc->disable_msix == 0) &&
((msgs = pci_msix_count(dev)) >= MPR_MSI_COUNT))
error = mpr_alloc_msix(sc, MPR_MSI_COUNT);
Or am I completely misreading the code?
The code appears to support a value other than 1.
Thanks,
John
with verbose=1:
mpr0: attempting to allocate 1 MSI-X vectors (96 supported)
mpr1: attempting to allocate 1 MSI-X vectors (96 supported)
mpr2: attempting to allocate 1 MSI-X vectors (96 supported)
mpr3: attempting to allocate 1 MSI-X vectors (96 supported)
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