Re: [PATCH] PCI: Add Ralink RT2800 broken INTx masking quirk

[Andreas Hartmann]

Alex Williamson wrote:
> On Thu, 2012-06-07 at 23:01 +0200, Andreas Hartmann wrote:
>> Alex Williamson wrote:
>>> On Thu, 2012-06-07 at 08:18 +0200, Andreas Hartmann wrote:
>>>> Hello Alex,
>>>>
>>>> what about a module parameter to achieve this behaviour manually by
>>>> the user without recompiling? I fear, there are much more candidates
>>>> out there needing this "feature".
>>>
>>> Yeah, that's probably a good idea.  For debugging and letting users have
>>> a workaround rather than any kind of regular use.  I'll add a nointxmask
>>> to vfio-pci with a description indicating that if it fixes a device to
>>> report it for quirking.
>>
>> That's exactly what I meant.
>>
>>
>> May I have please another question? 
>> Unfortunately I can't cleanly unmount filesystems during shutdown with your 
>> kernel (this problem doesn't happen with the patched 3.4 suse kernel).
> 
> Hmm, are you using my kernel that's based on the next branch?  Could be
> any number of things broken in next.
> 
>> I applied your vfio-patches from your git-repository to an openSUSE 3.4 
>> kernel (plus one other to get the patches applied):
>>
>> iommu_core:_pass_a_user-provided_token_to_fault_handlers.patch
>> 0ca4120cbaeaa2aecdccc5043b309fe1808aae2a.patch [PATCH] pci: Add PCI DMA source ID quirk
>> db47c1f7313ad863818261f62f1babaf0b564e55.patch [PATCH] pci: Add ACS validation utility
>> a89edb6943102d4519860bca5671740c1b7364cc.patch [PATCH] pci: export pci_user functions for use by other drivers
>> 38fdda7327b6cf50c1265a6332e94b97100aa10e.patch [PATCH] pci: Create common pcibios_err_to_errno
>> cb6e045625e5a217df3cebcb4585b40cbcad6c96.patch [PATCH] pci: Misc pci_reg additions
>> c6985f9b501903f5c707a1711fa53dc94c72f999.patch [PATCH] driver core: Add iommu_group tracking to struct device
>> 581187e853620c52e4b78db643161cc3be2f3388.patch [PATCH] iommu: IOMMU Groups
>> 635e48574089f4c8205a2fd7b1d85edd02344fe5.patch [PATCH] amd_iommu: Support IOMMU groups
>> 37f2d6d5217fdd2facd9641b83fde683263adcaf.patch [PATCH] intel-iommu: Support IOMMU groups
>> 351d849a51787140736e04f261ae9db09c980868.patch [PATCH] amd_iommu: Make use of DMA quirks and ACS checks in IOMMU
>> 92eef0a72193ef8504eea10b4ccbdb2e1ee9f4b3.patch [PATCH] intel-iommu: Make use of DMA quirks and ACS checks in IOMMU groups
>> dd2886fe0a8936d649a365162658406e7a18d274.patch [PATCH] iommu: Remove group_mf
>> 6891b9a7d56841e592cfb444a7f4b2b02831f866.patch [PATCH] vfio: VFIO core
>> 51b06ff680d8bc30d1bd627e2dd24641789be55d.patch [PATCH] vfio: Add documentation
>> 4b36b306122a225d33e947e7f9e6d1117a4fb699.patch [PATCH] vfio: Type1 IOMMU implementation
>> 91e4950e482b142dd9ab46f0ec386c5eed9f1470.patch [PATCH] vfio: Add PCI device driver
>> PCI:_Mark_INTx_masking_support_of_Chelsio_T310_10GbE_NIC_as_broken.patch 
>> PCI:_Add_Ralink_RT2800_broken_INTx_masking_quirk.patch 
>> IRQF_ONESHOT.patch"
>>
>>
>> The VM does work as expected, but fglrx isn't happy any
>> more (but worked fine with your kernel and works fine, too, with the
>> unpatched suse 3.4 kernel). fglrx says:
> 
> So you're saying:
> 
> kernel built from my tree: fglrx works
> opensuse kernel: fglrx works
> opensuse kernel + above patches: failure below?

Exactly.

> 
>> Jun  7 14:21:42 host kernel: [  105.103610] [fglrx:firegl_cail_init] *ERROR* CAIL: CAILInitialize failed, error 1
>> Jun  7 14:21:42 host kernel: [  105.103613] [fglrx:hal_init_asic] *ERROR* Failed to initialize ASIC.
>> Jun  7 14:21:42 host kernel: [  105.103645] [fglrx:firegl_init_pcie] *ERROR* Can not get FB size
>> Jun  7 14:21:42 host kernel: [  105.103653] [fglrx:IRQMGR_alloc_context] *ERROR* IRQMGR_GetExtensionSize returned 0
>> Jun  7 14:21:42 host kernel: [  105.103654] [fglrx:irqmgr_wrap_initialize] *ERROR* Fail to allocate IRQMGR context! 
>> Jun  7 14:21:42 host kernel: [  105.109151] [fglrx:firegl_irq_enable] *ERROR* interrupt source ff000032 is not supported on this hardware (return code = 2)
>> Jun  7 14:21:42 host kernel: [  105.109173] [fglrx:firegl_irq_enable] *ERROR* interrupt source 10000000 is not supported on this hardware (return code = 2)
>> Jun  7 14:21:42 host kernel: [  105.169073] [fglrx:firegl_irq_enable] *ERROR* interrupt source 60000001 is not supported on this hardware (return code = 2)
>> Jun  7 14:21:42 host kernel: [  105.169107] [fglrx:firegl_irq_enable] *ERROR* interrupt source ff00002c is not supported on this hardware (return code = 2)
>> Jun  7 14:21:42 host kernel: [  105.169125] [fglrx:firegl_irq_enable] *ERROR* interrupt source ff00004e is not supported on this hardware (return code = 2)
>> Jun  7 14:21:42 host kernel: [  105.169142] [fglrx:firegl_irq_enable] *ERROR* interrupt source 20000400 is not supported on this hardware (return code = 2)
>> Jun  7 14:21:42 host kernel: [  105.172906] [fglrx:firegl_cmmqs_init] *ERROR* CMMQS init:GAL is not initialized.
>> Jun  7 14:21:42 host kernel: [  105.172909] [fglrx:firegl_cmmqs_createdriver] *ERROR* CMMQS Initialization failed: firegl_cmmqs_createdriver
>> Jun  7 14:21:42 host kernel: [  105.172940] [fglrx:firegl_cmmqs_BIOSControl] *ERROR* CMMQS BIOS Control: CMMQS handle is not valid.
>> Jun  7 14:21:42 host kernel: [  105.172942] [fglrx:firegl_bios_control] *ERROR* CMMQS BIOS Control is failed: firegl_bios_control
>> Jun  7 14:21:42 host kernel: [  105.195648] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0017 address=0x0000000f00268a00 flags=0x0010]
>> Jun  7 14:21:42 host kernel: [  105.195651] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0017 address=0x0000000f0026a300 flags=0x0010]
>> ...
>>
>> Do you have by chance an idea which other patch is missing to get
>> it working again?
> 
> Does this happen regardless of whether you've done anything with a VM or
> even loaded the vfio modules?

vfio modules aren't loaded at all at this moment. They cannot be the
problem ... . But there are some changes in iommu, too, aren't there?

>  If so, please bisect the patch set and
> report where it starts to fail.  None of these patches should have any
> effect on existing DMA paths or drivers.  Testing stock v3.4 vs 3.4 +
> patches would also be an interesting exercise. 

Yes, this is the next thing I have to do.


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