NVMe and SR-IOV, how to use together?

[Bogdan Rudas]

Hi!

I've checked the device on 4.14.0 rc1 kernel. And see no SR-IOV files
for SSD PCI device in /sys/devices/..../sriov_*, SR-IOV works for
Intel I350 LOM at the same host.
However manufactures brochure claims the SR-IOV support for this
series. Should I report this as a bug in Linux nvme driver? Is so,
what the information should I gather?

Here is a brochure with SR-IOV mention:
http://www.samsung.com/semiconductor/global/file/insight/2016/08/Samsung_PM1725a-1.pdf

Here is SSD information:
root at ubuntu-test:~# nvme list
Node             SN                   Model
        Namespace Usage                      Format           FW Rev
---------------- --------------------
---------------------------------------- ---------
-------------------------- ---------------- --------
/dev/nvme0n1     S3HBNA0J600073       SAMSUNG MZPLL1T6HEHP-00003
        1           1.60  TB /   1.60  TB    512   B +  0 B   GPNA4B3Q

On Mon, Sep 18, 2017 at 9:41 PM, Keith Busch <keith.busch at intel.com> wrote:
> On Mon, Sep 18, 2017 at 09:20:16PM +0300, Bogdan Rudas wrote:
>> I run kernel 4.4.27 which don't have a support for SR-IOV in NVMe
>> driver, that's why I do not see a VFs in lspci output.
>
> The driver has nothing to do with what lspci will output. If you don't
> see the SR-IOV capability structure there, that means your drive doesn't
> support it.



-- 
Bogdan Rudas
Director of IT Europe
Exadel Inc.
http://www.exadel.com/
E-mail: brudas at exadel.com
Skype ID: bogdan.rudas

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