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From: David Daney <ddaney.cavm@gmail.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Robert Richter <rric@kernel.org>,
	linux-ide@vger.kernel.org, Marc Zyngier <marc.zyngier@arm.com>,
	Auger Eric <eric.auger@redhat.com>,
	Robert Richter <robert.richter@cavium.com>,
	dan.j.williamps@intel.com, Tejun Heo <tj@kernel.org>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] ahci: use pci_alloc_irq_vectors
Date: Mon, 24 Oct 2016 11:57:46 -0700	[thread overview]
Message-ID: <580E59AA.60107@gmail.com> (raw)
In-Reply-To: <20161022141123.GA25500@lst.de>

Hi Christoph,

I can answer these...

On 10/22/2016 07:11 AM, Christoph Hellwig wrote:
> Hi Robert,
>
> is this a controller that's using MSI-X?

Yes.  This is a ThunderX SoC with on-chip AHCI that use MSI-X

>
> If so can you try the patch below?

I applied it to v4.9-rc1 (really commit 
6f33d6458e35d6ba53c2635ee4b8a3177cbd912d), and this didn't seem to make 
it work.



>
> diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
> index ba5f11c..5fe852d 100644
> --- a/drivers/ata/ahci.c
> +++ b/drivers/ata/ahci.c
> @@ -1617,7 +1617,7 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
>   		/* legacy intx interrupts */
>   		pci_intx(pdev, 1);
>   	}
> -	hpriv->irq = pdev->irq;
> +	hpriv->irq = pci_irq_vector(pdev, 0);
>
>   	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
>   		host->flags |= ATA_HOST_PARALLEL_SCAN;
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>


  reply	other threads:[~2016-10-24 18:57 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-05 15:21 (unknown), Christoph Hellwig
2016-09-05 15:21 ` [PATCH] ahci: use pci_alloc_irq_vectors Christoph Hellwig
2016-09-06 16:39   ` Tejun Heo
2016-10-20 15:47     ` Robert Richter
2016-10-21 12:59       ` Christoph Hellwig
2016-10-21 14:01         ` Robert Richter
2016-10-22 14:11           ` Christoph Hellwig
2016-10-24 18:57             ` David Daney [this message]
2016-10-24 19:21               ` Christoph Hellwig
2016-10-24 20:29             ` David Daney
2016-10-25  9:25             ` Robert Richter

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