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SubjectRe: [PATCH 0/16 v6] PCI: Linux kernel SR-IOV support
Greg KH wrote:
> On Wed, Oct 22, 2008 at 04:38:09PM +0800, Yu Zhao wrote:
>> Greetings,
>> Following patches are intended to support SR-IOV capability in the
>> Linux kernel. With these patches, people can turn a PCI device with
>> the capability into multiple ones from software perspective, which
>> will benefit KVM and achieve other purposes such as QoS, security,
>> and etc.
> Is there any actual users of this API around yet? How was it tested as
> there is no hardware to test on? Which drivers are going to have to be
> rewritten to take advantage of this new interface?

Yes, the API is used by Intel, HP, NextIO and some other anonymous
companies as they rise questions and send me feedback. I haven't seen
their works but I guess some of drivers using SR-IOV API are going to be
released soon.

My test was done with Intel 82576 Gigabit Ethernet Controller. The
product brief is at and the spec
is available at


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