Date: Mon, 15 Nov 2010 10:47:16 -0600 From: Tom Judge <tom@tomjudge.com> To: Alexander Motin <mav@FreeBSD.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, Pyun YongHyeon <yongari@FreeBSD.org> Subject: Re: svn commit: r215327 - head/sys/dev/nfe Message-ID: <4CE16414.8060606@tomjudge.com> In-Reply-To: <4CE07AA3.6040205@FreeBSD.org> References: <201011142337.oAENbheD097425@svn.freebsd.org> <4CE07AA3.6040205@FreeBSD.org>
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On 11/14/2010 06:11 PM, Alexander Motin wrote: > Pyun YongHyeon wrote: >> Author: yongari >> Date: Sun Nov 14 23:37:43 2010 >> New Revision: 215327 >> URL: http://svn.freebsd.org/changeset/base/215327 >> >> Log: >> P5N32-SLI PREMIUM from ASUSTeK is known to have MSI/MSI-X issue >> such that nfe(4) does not work with MSI-X. When MSI-X support was >> introduced, I remember MCP55 controller worked without problems so >> the issue could be either PCI bridge or BIOS issue. But I also >> noticed snd_hda(4) disabled MSI on all MCP55 chipset so I'm still >> not sure this is generic issue of MCP55 chipset. If this was PCI >> bridge issue we would have added it to a system wide black-list >> table but it's not clear to me at this moment whether it was caused >> by either broken BIOS or silicon bug of MCP55 chipset. > > MCP5x seem to be infinite source of surprises. Some reports I remember: > - snd_hda not working with MSI enabled - AFAIR not just loosing > interrupts but completely stops responding; > - using regular HPET interrupts breaks HDA sound after some time > (interrupts are not shared), while legacy_route mode operates properly; > - at least on one system I've seen non-functioning SATA interrupts. > It would be nice to find what's going on there. I've got tired to add > workarounds for it. :( > Another one for the list is Intel em cards not working with MSI enabled on MCP51 systems. (On 8.1) TJ -- TJU13-ARIN
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