From ad712c71cea3b26d8a7c53200c742181d1d040e7 Mon Sep 17 00:00:00 2001 From: Thomas Nixon Date: Sat, 26 Jun 2021 12:50:12 +0000 Subject: [PATCH] realtek: remove rtl83xx vlan 1 special cases On reset, the PVID of all ports is set to 1; if this is reset to 0, the special cases for VLAN 1 are no longer required. port_vlan_add is called with vid=0 when the DSA port interfaces are enabled with no VLAN; previously the VLAN was not configured in this case, relying on VLAN 1 being present, but with the PVID set to 0, configuring VLAN 0 as normal works as expected. Signed-off-by: Thomas Nixon --- .../realtek/files-5.4/drivers/net/dsa/rtl83xx/dsa.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/target/linux/realtek/files-5.4/drivers/net/dsa/rtl83xx/dsa.c b/target/linux/realtek/files-5.4/drivers/net/dsa/rtl83xx/dsa.c index c5f243c55a..c2a230c4cb 100644 --- a/target/linux/realtek/files-5.4/drivers/net/dsa/rtl83xx/dsa.c +++ b/target/linux/realtek/files-5.4/drivers/net/dsa/rtl83xx/dsa.c @@ -134,6 +134,10 @@ static void rtl83xx_vlan_setup(struct rtl838x_switch_priv *priv) for (i = 0; i < MAX_VLANS; i ++) priv->r->vlan_set_tagged(i, &info); + // reset PVIDs; defaults to 1 on reset + for (i = 0; i <= priv->ds->num_ports; i++) + sw_w32(0, priv->r->vlan_port_pb + (i << 2)); + // Set forwarding action based on inner VLAN tag for (i = 0; i < priv->cpu_port; i++) priv->r->vlan_fwd_on_inner(i, true); @@ -909,9 +913,6 @@ static void rtl83xx_vlan_add(struct dsa_switch *ds, int port, } for (v = vlan->vid_begin; v <= vlan->vid_end; v++) { - if (!v) - continue; - /* Get port memberships of this vlan */ priv->r->vlan_tables_read(v, &info); @@ -971,9 +972,7 @@ static int rtl83xx_vlan_del(struct dsa_switch *ds, int port, /* remove port from both tables */ info.untagged_ports &= (~BIT_ULL(port)); - /* always leave vid 1 */ - if (v != 1) - info.tagged_ports &= (~BIT_ULL(port)); + info.tagged_ports &= (~BIT_ULL(port)); priv->r->vlan_set_untagged(v, info.untagged_ports); pr_debug("Untagged ports, VLAN %d: %llx\n", v, info.untagged_ports);