# Re: New commands to configure IOV features

- From: Yinghai Lu \<yinghai@kernel.org\>
- Date: 2012-09-19 22:17:31 
- List: netdev
- Page: https://ratatoskr.run/netdev/2012/09/10904404
- Thread: https://ratatoskr.run/netdev/2012/05/10894658/t.md

```text
On Wed, Sep 19, 2012 at 12:44 PM, Ben Hutchings
[ref] wrote:
> On Wed, 2012-09-19 at 08:53 -0700, Greg Rose wrote:
>> I was not able to attend the Linux conference held at the end of August
>> myself but coworkers of mine here at Intel informed that method 2 here
>> seems to be the preferred approach.  Perhaps some folks who attended
>> the the conference can chime in with more specifics.
>
> There really wasn't much more specific discussion.  Bjorn's summary of
> the mini-summit <http://lwn.net/Articles/514113/> says:
>
>> SR-IOV Management
>>
>>     Currently drivers implement module parameters like "max_vfs".  This means
>>     all devices claimed by the driver get the same number of VFs, and you can't
>>     change anything without unloading and reloading the driver.
>>
>>     Consensus that we should try to implement a knob for this in sysfs so it
>>     can be generic (not in each driver) and set individually for each device.
>
> I don't think any implementation has been posted to the linux-pci list

please check attached three patches...

Thanks

Yinghai
```

## Attachments

- [pci\_dev\_type.patch](https://ratatoskr.run/netdev/2012/09/10904404/attachment/0) (application/octet-stream, 2042 bytes)
- [pci\_010\_pci\_dev\_boot\_vga\_x.patch](https://ratatoskr.run/netdev/2012/09/10904404/attachment/1) (application/octet-stream, 1868 bytes)
- [sriov\_xxx.patch](https://ratatoskr.run/netdev/2012/09/10904404/attachment/2) (application/octet-stream, 2158 bytes)