Re: Regression with 0b9e2988ab22 ("ahci: use pci_alloc_irq_vectors")

From	Jarkko Nikula <jarkko.nikula@linux.intel.com>
Newsgroups	linux.kernel
Subject	Re: Regression with 0b9e2988ab22 ("ahci: use pci_alloc_irq_vectors")
Date	2016-10-21 16:10 +0200
Message-ID	<suIGj-6Bt-263@gated-at.bofh.it> (permalink)
References	<suHTQ-60l-37@gated-at.bofh.it> <suI3w-63W-49@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 10/21/2016 04:27 PM, Christoph Hellwig wrote:
> Hi Jarkko,
>
> please try the two fixes queue up in the libata tree for this:
>
> https://git.kernel.org/cgit/linux/kernel/git/tj/libata.git/log/?h=for-4.9-fixes
>
Great! Commit 17a51f12cfbd ("ahci: only try to use multi-MSI mode if 
there is more than 1 port") fixed the non-working SATA on a machine with 
single port and it continues using MSI.

Another machine with more ports still uses IO-APIC (was using MSI before 
0b9e2988ab22 ("ahci: use pci_alloc_irq_vectors")). Then I applied 
a478b097474c ("ahci: fix nvec check") but didn't see changes.

-- 
Jarkko

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Regression with 0b9e2988ab22 ("ahci: use pci_alloc_irq_vectors") Jarkko Nikula <jarkko.nikula@linux.intel.com> - 2016-10-21 15:20 +0200
  Re: Regression with 0b9e2988ab22 ("ahci: use         pci_alloc_irq_vectors") Christoph Hellwig <hch@lst.de> - 2016-10-21 15:30 +0200
    Re: Regression with 0b9e2988ab22 ("ahci: use pci_alloc_irq_vectors") Jarkko Nikula <jarkko.nikula@linux.intel.com> - 2016-10-21 16:10 +0200

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