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net: dsa: Be aware of switches where VLAN filtering is a global setting

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On some switches, the action of whether to parse VLAN frame headers and use
that information for ingress admission is configurable, but not per
port. Such is the case for the Broadcom BCM53xx and the NXP SJA1105
families, for example. In that case, DSA can prevent the bridge core
from trying to apply different VLAN filtering settings on net devices
that belong to the same switch.

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Suggested-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean
2019-04-28 21:45:44 +03:00
committed by David S. Miller
parent 33162e9a05
commit 8f5d16f638
2 changed files with 50 additions and 7 deletions
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5
include/net/dsa.h
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@ -228,6 +228,11 @@ struct dsa_switch {
/* Number of switch port queues */
unsigned int num_tx_queues;
/* Disallow bridge core from requesting different VLAN awareness
* settings on ports if not hardware-supported
*/
bool vlan_filtering_is_global;
unsigned long *bitmap;
unsigned long _bitmap;