Full 32bit flowid from igb(4)

[hiren panchasara]

On 03/30/15 at 10:53P, Adrian Chadd wrote:
> No, you're absolutely right. However, you (a) get flowid for L3/L4
> V4/v6 but not other things, and (b) I was worried about changing the
> default behaviour of the driver, and who knows what other weird crap
> people may have done to their local driver. stuff like enabled
> checksums instead, or hacked in flowtable support. :)
> 
> So, I'm totally fine if you want to populate the flowid for a given
> flow. Totally okay. You just can't set it blindly - you can only set
> it when the relevant descriptor bits say "it's a flowid!".

Thanks for taking time and answering.

Totally agree. Looking at the code, igb does setup everything correctly
to get RSS hash in flowid when num_queues > 1. I'm not sure and I've not
checked what other chipsets do but I350 looks fine. If needed I am okay
to guard this with mac_type check.

Jack/Eric: Let me know what you guys think.

Cheers,
Hiren
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 618 bytes
Desc: not available
URL: <http://lists.freebsd.org/pipermail/freebsd-net/attachments/20150331/f416a875/attachment.sig>