[OpenWrt-Devel] [PATCH] generic ar8xxx: increase VLAN table for AR83x7

David Bauer mail at david-bauer.net
Mon Nov 25 07:27:55 EST 2019


Hello Jo,

On 11/25/19 1:01 PM, Jo-Philipp Wich wrote:
> Hi,
> 
> does it make sense to keep the vlan/vid indirection if we increase the
> table size to 4096? A simple 1:1 mapping of the vid to the table index
> would be simpler and more robust from the configuration pov.

i would like to keep it (for the moment), but i see why it's not the desirable the way it
is now (for the AR83x7).

Reason being, we have this problem also in the opposite direction. The AR724x / AR933x
has a similar issue, but in the opposite direction. It advertises a VLAN table size of 128,
but in fact it only has a table size of 16.

If we do a 1:1 mapping for the whole series, this would break for users who use a VLAN > 15 on
the affected devices.

I'm working on more patches to differentiate between VLAN_ID_MAX and VLAN_TABLE_SIZE, but for the
short term (and in light of 19.07), i think we should fix this simple bug now.

What do you think?

Best wishes
David

> 
> ~ Jo
> 
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> openwrt-devel mailing list
> openwrt-devel at lists.openwrt.org
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> 

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