Date: Tue, 10 Mar 2009 18:47:21 -0500 From: Robert Noland <rnoland@FreeBSD.org> To: "Arno J. Klaassen" <arno@heho.snv.jussieu.fr> Cc: freebsd-current@freebsd.org Subject: Re: msi broken? Message-ID: <1236728841.2091.5.camel@balrog.2hip.net> In-Reply-To: <wpmybtj6h5.fsf@heho.snv.jussieu.fr> References: <wp1vt5bhc4.fsf@heho.snv.jussieu.fr> <200903101425.28608.jhb@freebsd.org> <wpab7tp5jj.fsf@heho.snv.jussieu.fr> <200903101637.31039.jhb@freebsd.org> <wpmybtj6h5.fsf@heho.snv.jussieu.fr>
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On Wed, 2009-03-11 at 00:36 +0100, Arno J. Klaassen wrote:
> John Baldwin <jhb@freebsd.org> writes:
>=20
> > On Tuesday 10 March 2009 3:00:00 pm Arno J. Klaassen wrote:
> >> John Baldwin <jhb@freebsd.org> writes:
> >>=20
> >> > On Tuesday 10 March 2009 10:08:59 am Arno J. Klaassen wrote:
> >> >>=20
> >> >> Hello,
> >> >>=20
> >> >> when upgrading this morning from a March 1 -current, if_bge
> >> >> stopped working (and irq256: bge0 not showing up in
> >> >> vmstat -i ). Setting hw.pci.enable_msi=3D"0" makes it work again.
> >> >
> >> > Can you get a verbose dmesg (boot -v) with MSI enabled?
> >
> > Ok, so you are getting MSI interrupts assigned and routed ok. Can you =
try=20
> > disabling the code that sets the INTx_MASK flag in the PCI command regi=
ster=20
> > in sys/dev/pci/pci.c:pci_setup_intr()?
>=20
> grr : "rid" sure is 1 for the if_bge interrupt. Please tell me which
> lines of code set the INTx_MASK flag. Thanx, more tomorrow.
if rid is 0, the chip should be using INTx. if rid > 0 then it should
be using MSI.
}
mte->mte_handlers++;
}
#if 0 /* Comment this out/*
/* Make sure that INTx is disabled if we are using MSI/MSIX=
*/
pci_set_command_bit(dev, child, PCIM_CMD_INTxDIS);
#endif
bad:
if (error) {
(void)bus_generic_teardown_intr(dev, child, irq,
cookie);
return (error);
robert.
> Arno
> _______________________________________________
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"
--=20
Robert Noland <rnoland@FreeBSD.org>
FreeBSD
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