linux/net/dsa
DENG Qingfang 5e5502e012 net: dsa: mt7530: fix roaming from DSA user ports
When a client moves from a DSA user port to a software port in a bridge,
it cannot reach any other clients that connected to the DSA user ports.
That is because SA learning on the CPU port is disabled, so the switch
ignores the client's frames from the CPU port and still thinks it is at
the user port.

Fix it by enabling SA learning on the CPU port.

To prevent the switch from learning from flooding frames from the CPU
port, set skb->offload_fwd_mark to 1 for unicast and broadcast frames,
and let the switch flood them instead of trapping to the CPU port.
Multicast frames still need to be trapped to the CPU port for snooping,
so set the SA_DIS bit of the MTK tag to 1 when transmitting those frames
to disable SA learning.

Fixes: b8f126a8d5 ("net-next: dsa: add dsa support for Mediatek MT7530 switch")
Signed-off-by: DENG Qingfang <dqfext@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-16 13:49:28 -07:00
..
dsa2.c net: dsa: Do not make user port errors fatal 2020-05-04 10:29:47 -07:00
dsa_priv.h net: dsa: implement auto-normalization of MTU for bridge hardware datapath 2020-03-27 16:07:25 -07:00
dsa.c net: dsa: Simplify 'dsa_tag_protocol_to_str()' 2020-03-30 10:54:57 -07:00
Kconfig net: dsa: add support for Atheros AR9331 TAG format 2019-12-20 17:05:47 -08:00
Makefile net: dsa: add support for Atheros AR9331 TAG format 2019-12-20 17:05:47 -08:00
master.c net: dsa: Do not leave DSA master with NULL netdev_ops 2020-05-06 17:31:54 -07:00
port.c net: dsa: Down cpu/dsa ports phylink will control 2020-04-14 16:33:26 -07:00
slave.c net: dsa: remove duplicate assignment in dsa_slave_add_cls_matchall_mirred 2020-05-06 17:30:35 -07:00
switch.c net: dsa: configure the MTU for switch ports 2020-03-27 16:07:24 -07:00
tag_8021q.c net: dsa: tag_8021q: replace dsa_8021q_remove_header with __skb_vlan_pop 2020-03-24 16:19:01 -07:00
tag_ar9331.c net: dsa: tag_ar9331: Make sure there is headroom for tag 2020-02-14 07:34:51 -08:00
tag_brcm.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-25 18:58:11 -07:00
tag_dsa.c dsa: Cleanup unneeded table and make tag structures static 2019-04-28 19:41:01 -04:00
tag_edsa.c dsa: Cleanup unneeded table and make tag structures static 2019-04-28 19:41:01 -04:00
tag_gswip.c net: dsa: tag_gswip: fix typo in tagger name 2020-01-16 13:58:26 +01:00
tag_ksz.c net: dsa: ksz: use common define for tag len 2019-12-20 21:06:49 -08:00
tag_lan9303.c dsa: Cleanup unneeded table and make tag structures static 2019-04-28 19:41:01 -04:00
tag_mtk.c net: dsa: mt7530: fix roaming from DSA user ports 2020-05-16 13:49:28 -07:00
tag_ocelot.c net: mscc: ocelot: eliminate confusion between CPU and NPI port 2020-03-04 14:19:00 -08:00
tag_qca.c net: dsa: tag_qca: Make sure there is headroom for tag 2020-02-14 07:34:51 -08:00
tag_sja1105.c net: dsa: tag_8021q: replace dsa_8021q_remove_header with __skb_vlan_pop 2020-03-24 16:19:01 -07:00
tag_trailer.c dsa: Cleanup unneeded table and make tag structures static 2019-04-28 19:41:01 -04:00