From: okaya@codeaurora•org (Sinan Kaya)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH V7 08/11] drivers: acpi: Handle IOMMU lookup failure with deferred probing or error
Date: Mon, 30 Jan 2017 08:59:10 -0500 [thread overview]
Message-ID: <14751205-f034-7f0d-442a-854c3909425c@codeaurora.org> (raw)
In-Reply-To: <93e79759-d614-9b36-d5ab-63e8eb725009@arm.com>
On 1/30/2017 7:22 AM, Robin Murphy wrote:
> On 29/01/17 17:53, Sinan Kaya wrote:
>> On 1/24/2017 7:37 AM, Lorenzo Pieralisi wrote:
>>> [+hanjun, tomasz, sinan]
>>>
>>> It is quite a key patchset, I would be glad if they can test on their
>>> respective platforms with IORT.
>>>
>>
>> Tested on top of 4.10-rc5.
>>
>> 1. Platform Hidma device passed dmatest
>> 2. Seeing some USB stalls on a platform USB device.
>> 3. PCIe NVME drive probed and worked fine with MSI interrupts after boot.
>> 4. NVMe driver didn't probe following a hotplug insertion and received an
>> SMMU error event during the insertion.
>
> What was the SMMU error - a translation/permission fault (implying the
> wrong DMA ops) or a bad STE fault (implying we totally failed to tell
> the SMMU about the device at all)?
>
root at ubuntu:/sys/bus/pci/slots/4# echo 0 > power
[__204.698522]_iommu:_Removing_device_0003:01:00.0_from_group_0
[ 204.708704] pciehp 0003:00:00.0:pcie004: Slot(4): Link Down
[ 204.708723] pciehp 0003:00:00.0:pcie004: Slot(4): Link Down event ignored; already powering off
root at ubuntu:/sys/bus/pci/slots/4#
[__254.820440]_iommu:_Adding_device_0003:01:00.0_to_group_8
[ 254.820599] nvme nvme0: pci function 0003:01:00.0
[ 254.820621] nvme 0003:01:00.0: enabling device (0000 -> 0002)
[ 261.948558] arm-smmu-v3 arm-smmu-v3.0.auto: event 0x0a received:
[ 261.948561] arm-smmu-v3 arm-smmu-v3.0.auto: 0x000001000000000a
[ 261.948563] arm-smmu-v3 arm-smmu-v3.0.auto: 0x0000000000000000
[ 261.948564] arm-smmu-v3 arm-smmu-v3.0.auto: 0x0000000000000000
[ 261.948566] arm-smmu-v3 arm-smmu-v3.0.auto: 0x0000000000000000
root at ubuntu:/sys/bus/pci/slots/4#
root at ubuntu:/sys/bus/pci/slots/4#ls /dev/nvme*
/dev/nvme0
I should have seen /dev/nvme0n1 partition here.
> Robin.
>
>>
>> /sys/bus/pci/slots/4 #
>> /sys/bus/pci/slots/4 # dmesg | grep nvme
>> [ 14.041357] nvme nvme0: pci function 0003:01:00.0
>> [ 198.399521] nvme nvme0: pci function 0003:01:00.0
>> [__198.416232]_nvme_0003:01:00.0:_enabling_device_(0000_->_0002)
>> [ 264.402216] nvme nvme0: I/O 228 QID 0 timeout, disable controller
>> [ 264.402313] nvme nvme0: Identify Controller failed (-4)
>> [ 264.421270] nvme nvme0: Removing after probe failure status: -5
>> /sys/bus/pci/slots/4 #
>>
>>
>>
>
> --
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>
--
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
next prev parent reply other threads:[~2017-01-30 13:59 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20170123161926epcas2p1cf464a2978d89d0c1fdd2f7cc6d38317@epcas2p1.samsung.com>
2017-01-23 16:18 ` [PATCH V7 00/11] IOMMU probe deferral support Sricharan R
2017-01-23 16:18 ` [PATCH V7 01/11] iommu/of: Refactor of_iommu_configure() for error handling Sricharan R
2017-01-25 17:17 ` Tomasz Nowicki
2017-01-25 17:35 ` Robin Murphy
2017-01-25 18:13 ` Tomasz Nowicki
2017-01-27 18:00 ` Sricharan
2017-01-27 18:19 ` Robin Murphy
2017-01-30 7:00 ` Sricharan
2017-01-30 18:42 ` Robin Murphy
2017-01-31 13:11 ` Sricharan
2017-01-23 16:18 ` [PATCH V7 02/11] iommu/of: Prepare for deferred IOMMU configuration Sricharan R
2017-01-23 16:18 ` [PATCH V7 03/11] of: dma: Move range size workaround to of_dma_get_range() Sricharan R
2017-01-23 16:18 ` [PATCH V7 04/11] of: dma: Make of_dma_deconfigure() public Sricharan R
2017-01-23 16:18 ` [PATCH V7 05/11] ACPI/IORT: Add function to check SMMUs drivers presence Sricharan R
2017-01-23 16:18 ` [PATCH V7 06/11] of/acpi: Configure dma operations at probe time for platform/amba/pci bus devices Sricharan R
2017-01-28 21:08 ` Bjorn Helgaas
2017-01-30 7:09 ` Rafael J. Wysocki
2017-01-23 16:18 ` [PATCH V7 07/11] iommu: of: Handle IOMMU lookup failure with deferred probing or error Sricharan R
2017-01-28 21:03 ` Bjorn Helgaas
2017-01-30 8:01 ` Sricharan
2017-01-29 16:36 ` Sinan Kaya
2017-01-30 12:00 ` Sricharan
2017-01-23 16:18 ` [PATCH V7 08/11] drivers: acpi: " Sricharan R
2017-01-24 12:37 ` Lorenzo Pieralisi
2017-01-24 13:14 ` Hanjun Guo
2017-01-25 7:31 ` Sricharan
2017-01-29 17:53 ` Sinan Kaya
2017-01-30 12:22 ` Robin Murphy
2017-01-30 13:59 ` Sinan Kaya [this message]
2017-01-30 14:23 ` Nate Watterson
2017-01-30 14:33 ` Sinan Kaya
2017-01-30 14:38 ` Will Deacon
2017-01-30 14:54 ` Nate Watterson
2017-01-30 15:46 ` Sinan Kaya
2017-01-30 16:51 ` Lorenzo Pieralisi
2017-01-30 20:03 ` Sinan Kaya
2017-02-01 18:52 ` Lorenzo Pieralisi
2017-02-01 19:10 ` Sinan Kaya
2017-02-02 19:01 ` Nate Watterson
2017-02-03 3:37 ` Hanjun Guo
2017-02-03 3:37 ` Sricharan
2017-01-23 16:18 ` [PATCH V7 09/11] arm64: dma-mapping: Remove the notifier trick to handle early setting of dma_ops Sricharan R
2017-01-28 21:06 ` Bjorn Helgaas
2017-01-30 8:04 ` Sricharan
2017-01-23 16:18 ` [PATCH V7 10/11] iommu/arm-smmu: Clean up early-probing workarounds Sricharan R
2017-01-25 17:28 ` Tomasz Nowicki
2017-01-28 21:07 ` Bjorn Helgaas
2017-01-30 8:05 ` Sricharan
2017-01-23 16:18 ` [PATCH V7 11/11] ACPI/IORT: Remove linker section for IORT entries probing Sricharan R
2017-01-24 7:40 ` [PATCH V7 00/11] IOMMU probe deferral support Marek Szyprowski
2017-01-24 11:15 ` Sricharan
2017-01-25 4:33 ` Hanjun Guo
2017-01-25 7:33 ` Sricharan
2017-01-28 21:10 ` Bjorn Helgaas
2017-01-30 9:20 ` Sricharan
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