Date: Tue, 15 Feb 2011 07:49:11 -0500 From: John Baldwin <jhb@freebsd.org> To: Erich Weiler <weiler@soe.ucsc.edu> Cc: freebsd-drivers@freebsd.org Subject: Re: MFI Driver Behavior Message-ID: <201102150749.11413.jhb@freebsd.org> In-Reply-To: <4D59BB67.1080703@soe.ucsc.edu> References: <4D55BBDC.7000604@soe.ucsc.edu> <201102140927.11654.jhb@freebsd.org> <4D59BB67.1080703@soe.ucsc.edu>
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On Monday, February 14, 2011 6:31:51 pm Erich Weiler wrote: > >> If even there was a way I could determine what the "0xffffff80009b5870" > >> MFI command is, that would be a big help, so I would have a better idea > >> of where to continue my investigations. > > > > That value is just a pointer to the command structure in the device driver for > > the command that timed out. It probably is not that useful. The best person > > to ask about this is probably Scott Long (scottl@FreeBSD.org). The fact that > > 'show volumes' unsticks the controller sounds quite odd. Are you using MSI? > > If so, have you tried disabling MSI? > > Thanks for replying! Yeah, I tried to contact Scott but it seems like > he does not reply to user email (some others have mentioned this as well > on the lists). > > But, I'm not sure about MSI. How would I confirm I'm using it, or > disable it? It looks from a bit of googling that one can disable it by > adding: > > hw.pci.enable_msix=0 > hw.pci.enable_msi=0 > > to /boot/loader.conf, and rebooting. Would that do it? Yes. > But would I lose anything by disabling MSI? I'm still not exactly sure > what it does, even after googling a bit... ;) Is there a man page I > can look at? Hrmph. It looks like our in-tree mfi(4) driver does not support MSI after all. How odd. I know the hardware supports MSI. In that case, this test won't help. :( -- John Baldwin
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