linux-kernel - Re: [PATCH 0/2] x86: per-device dma_mapping

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1210816813.5596.13.camel@alexis>
Date:	Wed, 14 May 2008 19:00:13 -0700
From:	Alexis Bruemmer <alexisb@...ibm.com>
To:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Cc:	muli@...ibm.com, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org
Subject: Re: [PATCH 0/2] x86: per-device dma_mapping_ops

On Thu, 2008-05-15 at 10:12 +0900, FUJITA Tomonori wrote:
> On Wed, 14 May 2008 08:49:24 +0300
> Muli Ben-Yehuda <muli@...ibm.com> wrote:
> 
> > On Tue, May 13, 2008 at 03:04:50PM +0900, FUJITA Tomonori wrote:
<snip>
> > Awesome! Much needed, thank you for doing this.
> 
> No problem. Well, as you know, it's just a base. We need more work to
> solve the problems on the top of this.
Yes thank you!  
> 
> I'd like to have a mechanism to register a hook called when a new pci
> (or dma capable) device is created. It enables IOMMUs to set up an
> appropriate dma_mapping_ops per device. It could also enables us to
> simplify the IOMMUs code to initilize devices at startup (for exmple,
> intel-iommu checks all the pci devices and creates a domain per device
> if necessary).
I wanted to try and create a test version of this, at least for the
calgary side, but ran into an error with this patch set:

Fusion MPT SAS Host driver 3.04.06
ACPI: PCI Interrupt 0000:34:00.0[A] -> GSI 142 (level, low) -> IRQ 142
mptbase: ioc0: Initiating bringup
ioc0: LSISAS1078 C1: Capabilities={Initiator}
mptbase: ioc0: PCI-MSI enabled
Calgary: DMA error on CalIOC2 PHB 0x33
Calgary: 0x02000000@CSR 0x00000000@...SR 0xb0008000@...R 0x00000000@MCK
Calgary: 0x00000000@...10 0xfee0c000@...20 0x00000000@...30
0x00000000@...40 0x03804a00@...50 0x00000000@...60 0x00000000@...70
Calgary: 0x00000000@...b0
mptbase: ioc0: Initiating recovery
mptbase: ioc0: WARNING - Unexpected doorbell active!
mptbase: ioc0: WARNING - NOT READY!
mptbase: ioc0: WARNING - Cannot recover rc = -1!
mptbase: ioc0: WARNING - Firmware Reload FAILED!
Clocksource tsc unstable (delta = 48333779773 ns)

Not sure what is causing this error, but will keep digging.  Any ideas?

--Alexis

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/