From: hch@lst.de (Christoph Hellwig)
Subject: [PATCH 1/2] PCI: Provide sensible irq vector alloc/free routines
Date: Sun, 8 May 2016 11:05:58 +0200 [thread overview]
Message-ID: <20160508090558.GA11677@lst.de> (raw)
In-Reply-To: <20160506163510.GA20754@localhost>
On Fri, May 06, 2016@11:35:10AM -0500, Bjorn Helgaas wrote:
> I don't know what sort of clues you'll need for IRQ spreading, but
> that sounds like a good reason for the argument. So if you will need
> the flags argument for something else, then I think it's OK as-is.
The basic idea is that we want to spread the MSI(-X) vectors around
properly right when allocating them. See the series around this
patch when I last posted it. For for now various drivers use different
ways of spreading them, so we'll need to make it opt-in in the beginning.
In the long run we'll hopefully have everyone converted to the common
algorithm and can get rid of the flag, but that might take a while.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de>
To: Bjorn Helgaas <helgaas@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>,
agordeev@redhat.com, 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: Sun, 8 May 2016 11:05:58 +0200 [thread overview]
Message-ID: <20160508090558.GA11677@lst.de> (raw)
In-Reply-To: <20160506163510.GA20754@localhost>
On Fri, May 06, 2016 at 11:35:10AM -0500, Bjorn Helgaas wrote:
> I don't know what sort of clues you'll need for IRQ spreading, but
> that sounds like a good reason for the argument. So if you will need
> the flags argument for something else, then I think it's OK as-is.
The basic idea is that we want to spread the MSI(-X) vectors around
properly right when allocating them. See the series around this
patch when I last posted it. For for now various drivers use different
ways of spreading them, so we'll need to make it opt-in in the beginning.
In the long run we'll hopefully have everyone converted to the common
algorithm and can get rid of the flag, but that might take a while.
next prev parent reply other threads:[~2016-05-08 9:05 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 [this message]
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
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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