Changing NIC ring weight in indirection table

[Adrian Chadd]

yeah, adrian is currently busy doing non-paid wifi work, so getting
onto non-paid RSS configuration work is taking a backburner.

Patches gratefully accepted though!


-a


On 3 January 2017 at 17:19, Sepherosa Ziehau <sepherosa at gmail.com> wrote:
> On Fri, Dec 30, 2016 at 11:34 PM, David Belle-Isle <dbelleisle at gmail.com> wrote:
>> Hi,
>>
>> Can anyone tell me how to set the weight of a ring from the indirection
>> table on FreeBSD? My plan is to yank out a TX ring and to use it solely
>> with netmap to receive packets but want to make sure the kernel won't be
>> receiving any packets on this ring.
>
> TX side is not related to the RSS's indirect table at all.  I believe
> you need to modify the drivers you are using.
>
>>
>> Based on a quick search this is something that ethtool would be able to do
>> on Linux but I doubt this can be done on FreeBSD using the same tool?
>
> adrian@ has proposed something in this area, RSS key and RSS indirect
> table, though not much happens yet.  I have implemented the indirect
> table changes through a driver specific sysctl for hn(4), you probably
> could do the same for the drivers that you are using.  But again, you
> will have to change the code.
>
> Thanks,
> sephe