From: Jon Derrick <jonathan.derrick@intel.com>
To: helgaas@kernel.org
Cc: Jon Derrick <jonathan.derrick@intel.com>,
keith.busch@intel.com, linux-pci@vger.kernel.org
Subject: [RFCv2 0/3] vmd irq list shortening, map allocation
Date: Fri, 2 Sep 2016 11:53:03 -0600 [thread overview]
Message-ID: <1472838786-3441-1-git-send-email-jonathan.derrick@intel.com> (raw)
V2:
Added a map for vmd irqs to attempt to allocate all vmd irqs within an
irq list into a single page. Once we start getting many devices
sharing the irq in an irq list, this may help the list traversal latency.
V1:
Couple of RFC patches here. I don't really notice a positive benefit but
it does reduce the struct size of vmd_irq_list and hopefully we gain some
cache benefits from that.
Both are based on:
https://patchwork.kernel.org/patch/9304179/
https://patchwork.kernel.org/patch/9304181/
Jon Derrick (3):
vmd: eliminate vmd_vector member from list type
vmd: eliminate index member from irq list
pci/vmd: Create irq map for irq nodes
arch/x86/pci/vmd.c | 94 ++++++++++++++++++++++++++++++++++++++++++------------
1 file changed, 73 insertions(+), 21 deletions(-)
--
1.8.3.1
next reply other threads:[~2016-09-02 17:53 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-02 17:53 Jon Derrick [this message]
2016-09-02 17:53 ` [RFCv2 1/3] vmd: eliminate vmd_vector member from list type Jon Derrick
2016-09-02 17:53 ` [RFCv2 2/3] vmd: eliminate index member from irq list Jon Derrick
2016-09-02 17:53 ` [RFCv2 3/3] pci/vmd: Create irq map for irq nodes Jon Derrick
2016-09-13 20:57 ` [RFCv2 0/3] vmd irq list shortening, map allocation Bjorn Helgaas
2016-09-13 22:16 ` Busch, Keith
2016-09-14 14:44 ` Jon Derrick
2016-09-14 20:25 ` Bjorn Helgaas
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