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xen-devel
[Xen-devel] RE: [PATCH 2/4 v2] PCI: support ARI capability
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To: |
"Alex Chiang" <achiang@xxxxxx> |
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Subject: |
[Xen-devel] RE: [PATCH 2/4 v2] PCI: support ARI capability |
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From: |
"Zhao, Yu" <yu.zhao@xxxxxxxxx> |
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Date: |
Wed, 10 Sep 2008 15:35:06 +0800 |
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Cc: |
Randy Dunlap <randy.dunlap@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Grant Grundler <grundler@xxxxxxxxxxxxxxxx>, kvm@xxxxxxxxxxxxxxx, Matthew Wilcox <matthew@xxxxxx>, linux-pci@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>, virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx, Greg KH <greg@xxxxxxxxx> |
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Wed, 10 Sep 2008 00:35:43 -0700 |
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AckMR3X8lXT3JaPhSse5ihFmI7ZkiQG0CU3g |
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Thread-topic: |
[PATCH 2/4 v2] PCI: support ARI capability |
On Monday, September 01, 2008 11:28 PM, Alex Chiang wrote:
>* Zhao, Yu <yu.zhao@xxxxxxxxx>:
>> Support Alternative Routing-ID Interpretation (ARI), which increases the
>number of functions that can be supported by a PCIe endpoint. ARI is required
>by SR-IOV.
>>
>> PCI-SIG ARI specification can be found at
>http://www.pcisig.com/specifications/pciexpress/specifications/ECN-alt-rid-
>interpretation-070604.pdf
>>
>> Signed-off-by: Yu Zhao <yu.zhao@xxxxxxxxx>
>> Signed-off-by: Eddie Dong <eddie.dong@xxxxxxxxx>
>>
>> ---
>> drivers/pci/Kconfig | 7 ++++
>> drivers/pci/Makefile | 2 +
>> drivers/pci/ari.c | 71
>++++++++++++++++++++++++++++++++++++++++++++++
>> drivers/pci/pci.h | 8 +++++
>> drivers/pci/probe.c | 3 ++
>> include/linux/pci.h | 25 ++++++++++++++++
>> include/linux/pci_regs.h | 14 +++++++++
>> 7 files changed, 130 insertions(+), 0 deletions(-)
>> create mode 100644 drivers/pci/ari.c
>>
>> diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
>> index e1ca425..f43cc46 100644
>> --- a/drivers/pci/Kconfig
>> +++ b/drivers/pci/Kconfig
>> @@ -50,3 +50,10 @@ config HT_IRQ
>> This allows native hypertransport devices to use interrupts.
>>
>> If unsure say Y.
>> +
>> +config PCI_ARI
>> + bool "PCI ARI support"
>> + depends on PCI
>> + default n
>> + help
>> + This enables PCI Alternative Routing-ID Interpretation.
>
>This Kconfig help text is a little weak. Why not include the text
>you've already written here:
>
> Support Alternative Routing-ID Interpretation (ARI), which
> increases the number of functions that can be supported by a PCIe
> endpoint. ARI is required by SR-IOV.
>
>In the Kconfig text, you might want to expand the SR-IOV acronym
>too.
Thanks. Will do in next version.
>
>Thanks.
>
>/ac
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