linux-kernel - RE: Supermicro X9SRL-F - channel enumeration error & ACPI/firmware bug question

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Date:	Tue, 27 Nov 2012 09:35:43 -0500
From:	"Justin Piszcz" <jpiszcz@...idpixels.com>
To:	"'Bjorn Helgaas'" <bhelgaas@...gle.com>
Cc:	'Bruno Prémont' <bonbons@...ux-vserver.org>,
	<support@...ermicro.com>, <linux-kernel@...r.kernel.org>,
	"'Dan Williams'" <djbw@...com>
Subject: RE: Supermicro X9SRL-F - channel enumeration error & ACPI/firmware bug question



-----Original Message-----
From: Justin Piszcz [mailto:jpiszcz@...idpixels.com] 
Sent: Tuesday, November 27, 2012 8:56 AM
To: 'Bjorn Helgaas'
Cc: 'Bruno Prémont'; support@...ermicro.com; linux-kernel@...r.kernel.org;
'Dan Williams'
Subject: RE: Supermicro X9SRL-F - channel enumeration error & ACPI/firmware
bug question


> It is _not_ working on the:

> 2) Supermicro X8DTH-F (the boot drive in this system is running off a
PCI-e
> card, could the IRQ for the I/O controller be getting re-mapped and
fail?)--
> worse case I can move the SSD from the 6.0gbpa SATA card to the
motherboard
> and see if that works, but that kind of defeats the purpose of a 6.0gbps
> SATA SSD.

When I removed the Highpoint 2-port SATA card and plugged it into the
motherboard, the system boots (plugged the SSD into the motherboard).
So if you use a HIGHPOINT 2-PORT SATA 6.0gbps card, do NOT enable IOMMU or
it will fail to initialize the Highpoint 2-port SATA controller card!
I also tried upgrading the BIOS (of the mobo, no diff)
I also tried just leaving the SATA card in and plugging it into the
motherboard (no diff)
Removed the Highpoint 2-port SATA card and then success, it would be nice to
use that card with IOMMU support though, is it just not compatible
(marvell-problem?) or is a driver bug?  Based on the pictures/etc sent
earlier?

$ dmesg|grep -i iommu
[    0.055134] dmar: IOMMU 0: reg_base_addr cfdfe000 ver 1:0 cap
c90780106f0462 ecap f020f6
[    0.055396] dmar: IOMMU 1: reg_base_addr fecfe000 ver 1:0 cap
c90780106f0462 ecap f020f6
[    0.760665] IOMMU 0 0xcfdfe000: using Queued invalidation
[    0.760803] IOMMU 1 0xfecfe000: using Queued invalidation
[    0.760937] IOMMU: Setting RMRR:
[    0.761102] IOMMU: Setting identity map for device 0000:00:1d.0
[0xbf7ec000 - 0xbf7fffff]
[    0.761329] IOMMU: Setting identity map for device 0000:00:1d.1
[0xbf7ec000 - 0xbf7fffff]
[    0.761542] IOMMU: Setting identity map for device 0000:00:1d.2
[0xbf7ec000 - 0xbf7fffff]
[    0.761758] IOMMU: Setting identity map for device 0000:00:1d.7
[0xbf7ec000 - 0xbf7fffff]
[    0.761974] IOMMU: Setting identity map for device 0000:00:1a.0
[0xbf7ec000 - 0xbf7fffff]
[    0.762190] IOMMU: Setting identity map for device 0000:00:1a.1
[0xbf7ec000 - 0xbf7fffff]
[    0.762407] IOMMU: Setting identity map for device 0000:00:1a.2
[0xbf7ec000 - 0xbf7fffff]
[    0.762620] IOMMU: Setting identity map for device 0000:00:1a.7
[0xbf7ec000 - 0xbf7fffff]
[    0.762816] IOMMU: Setting identity map for device 0000:00:1d.0 [0xec000
- 0xeffff]
[    0.763010] IOMMU: Setting identity map for device 0000:00:1d.1 [0xec000
- 0xeffff]
[    0.763197] IOMMU: Setting identity map for device 0000:00:1d.2 [0xec000
- 0xeffff]
[    0.763382] IOMMU: Setting identity map for device 0000:00:1d.7 [0xec000
- 0xeffff]
[    0.763567] IOMMU: Setting identity map for device 0000:00:1a.0 [0xec000
- 0xeffff]
[    0.763749] IOMMU: Setting identity map for device 0000:00:1a.1 [0xec000
- 0xeffff]
[    0.763934] IOMMU: Setting identity map for device 0000:00:1a.2 [0xec000
- 0xeffff]
[    0.764127] IOMMU: Setting identity map for device 0000:00:1a.7 [0xec000
- 0xeffff]
[    0.764311] IOMMU: Prepare 0-16MiB unity mapping for LPC
[    0.764465] IOMMU: Setting identity map for device 0000:00:1f.0 [0x0 -
0xffffff]

--


==> Further issues with the X9SRL-F -- does this board support ASPM or is
this a Linux/ASPM implementation issue?
[    0.632170]  pci0000:ff: ACPI _OSC support notification failed, disabling
PCIe ASPM
[    0.632239]  pci0000:ff: Unable to request _OSC control (_OSC support
mask: 0x08)

Justin.








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