linux_dsm_epyc7002/drivers/net/dsa
Vivien Didelot 66d9cd0f54 net: dsa: mv88e6xxx: do not leave reserved VLANs
BRIDGE_VLAN_FILTERING automatically adds a newly bridged port to the
VLAN with the bridge's default_pvid.

The mv88e6xxx driver currently reserves VLANs 4000+ for unbridged ports
isolation. When a port joins a bridge, it leaves its reserved VLAN. When
a port leaves a bridge, it joins again its reserved VLAN.

But if the VLAN filtering is disabled, or if this hardware VLAN is
already in use, the bridged port ends up with no default VLAN, and the
communication with the CPU is thus broken.

To fix this, make a port join its reserved VLAN once on setup, never
leave it, and restore its PVID after another one was eventually used.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-13 06:07:48 -05:00
..
bcm_sf2_regs.h net: dsa: bcm_sf2: Implement FDB operations 2015-10-26 18:14:02 -07:00
bcm_sf2.c net: dsa: bcm_sf2: Unhardcode port numbers 2015-10-26 18:23:59 -07:00
bcm_sf2.h net: dsa: bcm_sf2: Unhardcode port numbers 2015-10-26 18:23:59 -07:00
Kconfig dsa: mv88e6352/mv88e6xxx: Add support for Marvell 88E6320 and 88E6321 2015-07-09 14:34:23 -07:00
Makefile net: dsa: Add support for Marvell 88E6352 2014-10-30 14:54:10 -04:00
mv88e6xxx.c net: dsa: mv88e6xxx: do not leave reserved VLANs 2016-02-13 06:07:48 -05:00
mv88e6xxx.h dsa: mv88e6xxx: Add Second back of statistics 2015-12-23 22:17:00 -05:00
mv88e6060.c net: dsa: mv88e6060: replace magic values with register defines 2015-11-15 20:16:16 -05:00
mv88e6060.h net: dsa: mv88e6060: add register defines header file 2015-11-15 20:16:16 -05:00
mv88e6123_61_65.c net: dsa: mv88e6xxx: lookup switch name 2015-11-02 15:54:13 -05:00
mv88e6131.c net: dsa: mv88e6xxx: lookup switch name 2015-11-02 15:54:13 -05:00
mv88e6171.c net: dsa: mv88e6xxx: isolate unbridged ports 2015-11-05 13:37:23 -05:00
mv88e6352.c net: dsa: mv88e6xxx: isolate unbridged ports 2015-11-05 13:37:23 -05:00