From: hch@lst.de (Christoph Hellwig)
Subject: [PATCH 1/2] PCI: Provide sensible irq vector alloc/free routines
Date: Thu, 12 May 2016 13:04:29 +0200 [thread overview]
Message-ID: <20160512110429.GA9352@lst.de> (raw)
In-Reply-To: <20160512110456.GA8681@agordeev.lab.eng.brq.redhat.com>
On Thu, May 12, 2016@01:04:58PM +0200, Alexander Gordeev wrote:
> Because MSI vectors are allocated sequentially we do not really
> need pdev->irqs[] for MSI. It is 32 items at most, but still.
The allocator itself doesn't "need" it. Any driver that doesn't want
to special case MSI vs MSI-X all through the code needs it, though.
(oh, and please don't full quote the whole email, thank you!)
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de>
To: Alexander Gordeev <agordeev@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>,
helgaas@kernel.org, pjw@netapp.com, axboe@fb.com,
keith.busch@intel.com, linux-pci@vger.kernel.org,
linux-nvme@lists.infradead.org
Subject: Re: [PATCH 1/2] PCI: Provide sensible irq vector alloc/free routines
Date: Thu, 12 May 2016 13:04:29 +0200 [thread overview]
Message-ID: <20160512110429.GA9352@lst.de> (raw)
In-Reply-To: <20160512110456.GA8681@agordeev.lab.eng.brq.redhat.com>
On Thu, May 12, 2016 at 01:04:58PM +0200, Alexander Gordeev wrote:
> Because MSI vectors are allocated sequentially we do not really
> need pdev->irqs[] for MSI. It is 32 items at most, but still.
The allocator itself doesn't "need" it. Any driver that doesn't want
to special case MSI vs MSI-X all through the code needs it, though.
(oh, and please don't full quote the whole email, thank you!)
next prev parent reply other threads:[~2016-05-12 11:04 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-05 14:04 PCI: Provide sensible irq vector alloc/free routines Christoph Hellwig
2016-05-05 14:04 ` Christoph Hellwig
2016-05-05 14:04 ` [PATCH 1/2] " Christoph Hellwig
2016-05-05 14:04 ` Christoph Hellwig
2016-05-06 16:04 ` Bjorn Helgaas
2016-05-06 16:04 ` Bjorn Helgaas
2016-05-06 16:28 ` Christoph Hellwig
2016-05-06 16:28 ` Christoph Hellwig
2016-05-06 16:35 ` Bjorn Helgaas
2016-05-06 16:35 ` Bjorn Helgaas
2016-05-08 9:05 ` Christoph Hellwig
2016-05-08 9:05 ` Christoph Hellwig
2016-05-09 22:46 ` Bjorn Helgaas
2016-05-09 22:46 ` Bjorn Helgaas
2016-05-11 8:52 ` Christoph Hellwig
2016-05-11 8:52 ` Christoph Hellwig
2016-05-16 19:39 ` Bjorn Helgaas
2016-05-16 19:39 ` Bjorn Helgaas
2016-05-17 16:45 ` Christoph Hellwig
2016-05-17 16:45 ` Christoph Hellwig
2016-05-11 7:45 ` Alexander Gordeev
2016-05-11 7:45 ` Alexander Gordeev
2016-05-11 8:50 ` Christoph Hellwig
2016-05-11 8:50 ` Christoph Hellwig
2016-05-11 9:44 ` Alexander Gordeev
2016-05-11 9:44 ` Alexander Gordeev
2016-05-12 7:35 ` Christoph Hellwig
2016-05-12 7:35 ` Christoph Hellwig
2016-05-12 9:44 ` Alexander Gordeev
2016-05-12 9:44 ` Alexander Gordeev
2016-05-12 11:03 ` Christoph Hellwig
2016-05-12 11:03 ` Christoph Hellwig
2016-05-12 12:11 ` Alexander Gordeev
2016-05-12 12:11 ` Alexander Gordeev
2016-05-12 12:19 ` Christoph Hellwig
2016-05-12 12:19 ` Christoph Hellwig
2016-05-12 14:29 ` Christoph Hellwig
2016-05-12 14:29 ` Christoph Hellwig
2016-05-13 8:29 ` Alexander Gordeev
2016-05-13 8:29 ` Alexander Gordeev
2016-06-11 1:14 ` Bjorn Helgaas
2016-06-11 1:14 ` Bjorn Helgaas
2016-06-13 15:15 ` Christoph Hellwig
2016-06-13 15:15 ` Christoph Hellwig
2016-06-21 14:33 ` Christoph Hellwig
2016-06-21 14:33 ` Christoph Hellwig
2016-05-12 11:04 ` Alexander Gordeev
2016-05-12 11:04 ` Alexander Gordeev
2016-05-12 11:04 ` Christoph Hellwig [this message]
2016-05-12 11:04 ` Christoph Hellwig
2016-05-05 14:04 ` [PATCH 2/2] nvme: switch to use pci_alloc_irq_vectors Christoph Hellwig
2016-05-05 14:04 ` Christoph Hellwig
2016-05-10 15:27 ` Keith Busch
2016-05-10 15:27 ` Keith Busch
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