Re: [PATCH v3 1/2] net: core: Notify on changes to dev->promiscuity.

From: David Miller
Date: Fri Aug 30 2019 - 03:32:29 EST


From: Jiri Pirko <jiri@xxxxxxxxxxx>
Date: Fri, 30 Aug 2019 09:21:33 +0200

> Fri, Aug 30, 2019 at 09:12:23AM CEST, davem@xxxxxxxxxxxxx wrote:
>>From: Jiri Pirko <jiri@xxxxxxxxxxx>
>>Date: Fri, 30 Aug 2019 08:36:24 +0200
>>
>>> The promiscuity is a way to setup the rx filter. So promics == rx filter
>>> off. For normal nics, where there is no hw fwd datapath,
>>> this coincidentally means all received packets go to cpu.
>>
>>You cannot convince me that the HW datapath isn't a "rx filter" too, sorry.
>
> If you look at it that way, then we have 2: rx_filter and hw_rx_filter.
> The point is, those 2 are not one item, that is the point I'm trying to
> make :/

And you can turn both of them off when I ask for promiscuous mode, that's
a detail of the device not a semantic issue.