[PATCH v3 net-next 05/17] net: dsa: sja1105: Reverse TPID and TPID2
From: Vladimir Oltean <olteanv@gmail.com>
Date: 2019-06-04 17:09:24
Also in:
lkml
Subsystem:
networking drivers, networking [dsa], the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Vladimir Oltean, Linus Torvalds
From reading the P/Q/R/S user manual, it appears that TPID is used by the switch for detecting S-tags and TPID2 for C-tags. Their meaning is not clear from the E/T manual. Signed-off-by: Vladimir Oltean <olteanv@gmail.com> --- Changes in v3: Patch is new. drivers/net/dsa/sja1105/sja1105_main.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/dsa/sja1105/sja1105_main.c b/drivers/net/dsa/sja1105/sja1105_main.c
index 909497aa4b6f..0f34e713c408 100644
--- a/drivers/net/dsa/sja1105/sja1105_main.c
+++ b/drivers/net/dsa/sja1105/sja1105_main.c@@ -1421,8 +1421,8 @@ static int sja1105_vlan_filtering(struct dsa_switch *ds, int port, bool enabled) if (enabled) { /* Enable VLAN filtering. */ - tpid = ETH_P_8021Q; - tpid2 = ETH_P_8021AD; + tpid = ETH_P_8021AD; + tpid2 = ETH_P_8021Q; } else { /* Disable VLAN filtering. */ tpid = ETH_P_SJA1105;
@@ -1431,7 +1431,9 @@ static int sja1105_vlan_filtering(struct dsa_switch *ds, int port, bool enabled) table = &priv->static_config.tables[BLK_IDX_GENERAL_PARAMS]; general_params = table->entries; + /* EtherType used to identify outer tagged (S-tag) VLAN traffic */ general_params->tpid = tpid; + /* EtherType used to identify inner tagged (C-tag) VLAN traffic */ general_params->tpid2 = tpid2; rc = sja1105_static_config_reload(priv);
--
2.17.1