On 20/03/15 15:09, Andrew Lunn wrote:

quoted

since we have discussed this problem multiple times in switchdev meetings,
the intent of this RFC is to see get the code out and also see if
rocker or any other in-kernel
driver can use it.

The Marvell switches in DSA don't have any way to mark packets why
they where forwarded towards the host. So i don't see how we could use
this feature with these chips.

FWIW, the Broadcom tag format has a reason code which tells you why the
packet was forwarded, which you will typically enable plus the
corresponding protocol snooping (IGMP, MLD, ARP, DHCP etc...) to know
what to do. For these kinds of switches it would not be too hard to
discard such packets because you know why you got them in the first place.

Is it true just for the "old" DSA format and not for e.g: EDSA?
-- 
Florian