From f123f2fbedc7c2723ceb050cd88c2ea1d6a8be32 Mon Sep 17 00:00:00 2001 From: Vivien Didelot Date: Fri, 27 Jan 2017 15:29:41 -0500 Subject: [PATCH] net: dsa: pass bridge device when a port leaves Upon reception of the NETDEV_CHANGEUPPER, a leaving port is already unbridged, so reflect this by assigning the port's bridge_dev pointer to NULL before calling the port_bridge_leave DSA driver operation. Now that the bridge_dev pointer is exposed to the drivers, reflecting the current state of the DSA switch fabric is necessary for the drivers to adjust their port based VLANs correctly. Pass the bridge device pointer to the port_bridge_leave operation so that drivers have all information to re-program their chips properly, and do not need to cache it anymore. Signed-off-by: Vivien Didelot Signed-off-by: David S. Miller --- drivers/net/dsa/b53/b53_common.c | 2 +- drivers/net/dsa/b53/b53_priv.h | 2 +- drivers/net/dsa/mv88e6xxx/chip.c | 3 ++- drivers/net/dsa/qca8k.c | 2 +- include/net/dsa.h | 3 ++- net/dsa/slave.c | 10 +++++----- 6 files changed, 12 insertions(+), 10 deletions(-) diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c index 31afc4d4b68b9..32fdcf5570c8f 100644 --- a/drivers/net/dsa/b53/b53_common.c +++ b/drivers/net/dsa/b53/b53_common.c @@ -1354,7 +1354,7 @@ int b53_br_join(struct dsa_switch *ds, int port, struct net_device *bridge) } EXPORT_SYMBOL(b53_br_join); -void b53_br_leave(struct dsa_switch *ds, int port) +void b53_br_leave(struct dsa_switch *ds, int port, struct net_device *br) { struct b53_device *dev = ds->priv; struct net_device *bridge = dev->ports[port].bridge_dev; diff --git a/drivers/net/dsa/b53/b53_priv.h b/drivers/net/dsa/b53/b53_priv.h index a8031b382c553..5dafb70e75fc3 100644 --- a/drivers/net/dsa/b53/b53_priv.h +++ b/drivers/net/dsa/b53/b53_priv.h @@ -382,7 +382,7 @@ void b53_get_strings(struct dsa_switch *ds, int port, uint8_t *data); void b53_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *data); int b53_get_sset_count(struct dsa_switch *ds); int b53_br_join(struct dsa_switch *ds, int port, struct net_device *bridge); -void b53_br_leave(struct dsa_switch *ds, int port); +void b53_br_leave(struct dsa_switch *ds, int port, struct net_device *bridge); void b53_br_set_stp_state(struct dsa_switch *ds, int port, u8 state); void b53_br_fast_age(struct dsa_switch *ds, int port); int b53_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering); diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index cb7b24748336d..8eb0dc063f4e7 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -2343,7 +2343,8 @@ static int mv88e6xxx_port_bridge_join(struct dsa_switch *ds, int port, return err; } -static void mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port) +static void mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port, + struct net_device *br) { struct mv88e6xxx_chip *chip = ds->priv; struct net_device *bridge = chip->ports[port].bridge_dev; diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c index f67c6a3cebff8..c85b187aa3d9b 100644 --- a/drivers/net/dsa/qca8k.c +++ b/drivers/net/dsa/qca8k.c @@ -775,7 +775,7 @@ qca8k_port_bridge_join(struct dsa_switch *ds, int port, } static void -qca8k_port_bridge_leave(struct dsa_switch *ds, int port) +qca8k_port_bridge_leave(struct dsa_switch *ds, int port, struct net_device *br) { struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv; int i; diff --git a/include/net/dsa.h b/include/net/dsa.h index 924533fd44258..b951e2ebda755 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -325,7 +325,8 @@ struct dsa_switch_ops { int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); int (*port_bridge_join)(struct dsa_switch *ds, int port, struct net_device *bridge); - void (*port_bridge_leave)(struct dsa_switch *ds, int port); + void (*port_bridge_leave)(struct dsa_switch *ds, int port, + struct net_device *bridge); void (*port_stp_state_set)(struct dsa_switch *ds, int port, u8 state); void (*port_fast_age)(struct dsa_switch *ds, int port); diff --git a/net/dsa/slave.c b/net/dsa/slave.c index cdb1df87e1112..08725286f79dd 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -565,16 +565,16 @@ static int dsa_slave_bridge_port_join(struct net_device *dev, return ret == -EOPNOTSUPP ? 0 : ret; } -static void dsa_slave_bridge_port_leave(struct net_device *dev) +static void dsa_slave_bridge_port_leave(struct net_device *dev, + struct net_device *br) { struct dsa_slave_priv *p = netdev_priv(dev); struct dsa_switch *ds = p->dp->ds; + p->dp->bridge_dev = NULL; if (ds->ops->port_bridge_leave) - ds->ops->port_bridge_leave(ds, p->dp->index); - - p->dp->bridge_dev = NULL; + ds->ops->port_bridge_leave(ds, p->dp->index, br); /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer, * so allow it to be in BR_STATE_FORWARDING to be kept functional @@ -1343,7 +1343,7 @@ static int dsa_slave_port_upper_event(struct net_device *dev, if (info->linking) err = dsa_slave_bridge_port_join(dev, upper); else - dsa_slave_bridge_port_leave(dev); + dsa_slave_bridge_port_leave(dev, upper); } break; -- 2.39.5