Re: [PATCH net v2] net: dsa: tag_rtl4_a: Bump min packet size

From: Florian Fainelli
Date: Mon Oct 30 2023 - 23:38:00 EST




On 10/30/2023 5:37 PM, Andrew Lunn wrote:
On Tue, Oct 31, 2023 at 01:09:06AM +0200, Vladimir Oltean wrote:
On Mon, Oct 30, 2023 at 11:57:33PM +0100, Linus Walleij wrote:
This of course make no sense, since the padding function should do nothing
when the packet is bigger than 60 bytes.

Indeed, this of course makes no sense. Ping doesn't work, or ARP doesn't
work? Could you add a static ARP entry for the 192.168.1.137 IP address?

Probably the ARP, since they are short packets and probably need the
padding.

Does this also mean that there is a general problem with unicast packets, and that broadcast packets happen to work by accident? Could you check whether a broadcast ping (ping -b) size sweep is immune to what you are reporting?
--
Florian