From: Christoph Hellwig <hch@lst.de>
To: John Garry <john.garry@huawei.com>
Cc: Christoph Hellwig <hch@lst.de>,
linux-block@vger.kernel.org, axboe@kernel.dk, maxg@mellanox.com,
Linuxarm <linuxarm@huawei.com>
Subject: Re: [Question] on blk_mq_map_queues()
Date: Thu, 5 Oct 2017 18:27:58 +0200 [thread overview]
Message-ID: <20171005162758.GA31439@lst.de> (raw)
In-Reply-To: <9f1e7e62-7d9d-199f-cb78-3dc4039b3042@huawei.com>
On Thu, Oct 05, 2017 at 05:06:54PM +0100, John Garry wrote:
> It's a HiSilicon hip07 (D05) platform. For this platform, the integrated
> SAS controller is a platform device. This controller supports 16 hw queues.
That's v1 or v2 in drivers/scsi/hisi_sas?
Seems like you need to implement the equivalent of the
pci_alloc_irq_vectors vector spreading for platform devices to get
your vectors properly assigned, and the have a blk_mq_of_map_queues
equivalent to blk_mq_pci_map_queues to map the queues based on the
interrupt assignment.
next prev parent reply other threads:[~2017-10-05 16:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-05 13:28 [Question] on blk_mq_map_queues() John Garry
2017-10-05 15:59 ` Christoph Hellwig
2017-10-05 16:06 ` John Garry
2017-10-05 16:27 ` Christoph Hellwig [this message]
2017-10-05 17:19 ` John Garry
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