From: "Derrick, Jonathan" <jonathan.derrick@intel.com>
To: "kbusch@kernel.org" <kbusch@kernel.org>
Cc: "lorenzo.pieralisi@arm.com" <lorenzo.pieralisi@arm.com>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"helgaas@kernel.org" <helgaas@kernel.org>
Subject: Re: [PATCH 1/3] PCI: vmd: Reduce VMD vectors using NVMe calculation
Date: Wed, 6 Nov 2019 19:51:46 +0000 [thread overview]
Message-ID: <ef9198c8ac174470fb5b2ea32293dc884428e37a.camel@intel.com> (raw)
In-Reply-To: <20191106180220.GB29853@redsun51.ssa.fujisawa.hgst.com>
On Thu, 2019-11-07 at 03:02 +0900, Keith Busch wrote:
> On Wed, Nov 06, 2019 at 04:40:06AM -0700, Jon Derrick wrote:
> > + max_vectors = min_t(int, vmd->msix_count, num_possible_cpus() + 1);
> > + if (nvec > max_vectors)
> > + return max_vectors;
>
> If vmd's msix vectors beyond num_possible_cpus() are inaccessible, why
> not just limit vmd's msix_count the same way?
Yes I could probably do that instead
next prev parent reply other threads:[~2019-11-06 19:51 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-06 11:40 [PATCH 0/3] PCI: vmd: Reducing tail latency by affining to the storage stack Jon Derrick
2019-11-06 11:40 ` [PATCH 1/3] PCI: vmd: Reduce VMD vectors using NVMe calculation Jon Derrick
2019-11-06 18:02 ` Keith Busch
2019-11-06 19:51 ` Derrick, Jonathan [this message]
2019-11-06 11:40 ` [PATCH 2/3] PCI: vmd: Align IRQ lists with child device vectors Jon Derrick
2019-11-06 18:06 ` Keith Busch
2019-11-06 20:14 ` Derrick, Jonathan
2019-11-06 11:40 ` [PATCH 3/3] PCI: vmd: Use managed irq affinities Jon Derrick
2019-11-06 18:10 ` Keith Busch
2019-11-06 20:14 ` Derrick, Jonathan
2019-11-06 20:27 ` Keith Busch
2019-11-06 20:33 ` Derrick, Jonathan
2019-11-18 10:49 ` Lorenzo Pieralisi
2019-11-18 16:43 ` Derrick, Jonathan
2019-11-07 9:39 ` [PATCH 0/3] PCI: vmd: Reducing tail latency by affining to the storage stack Christoph Hellwig
2019-11-07 14:12 ` Derrick, Jonathan
2019-11-07 15:37 ` hch
2019-11-07 15:40 ` Derrick, Jonathan
2019-11-07 15:42 ` hch
2019-11-07 15:47 ` Derrick, Jonathan
2019-11-11 17:03 ` hch
2022-12-23 2:33 ` Kai-Heng Feng
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