[PATCH net-next 5/5] net: dsa: propagate extack to .port_vlan_filtering
From: Vladimir Oltean <olteanv@gmail.com>
Date: 2021-02-13 20:45:45
Subsystem:
broadcom b53/sf2 ethernet switch driver, hirschmann hellcreek ethernet switch driver, marvell 88e6xxx ethernet switch fabric driver, mediatek switch driver, microchip ksz series ethernet switch driver, networking drivers, networking [dsa], networking [general], ocelot ethernet switch driver, the rest · Maintainers:
Florian Fainelli, Jonas Gorski, Kurt Kanzenbach, Andrew Lunn, Chester A. Unal, Daniel Golle, Woojung Huh, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Vladimir Oltean, Vladimir Oltean, Linus Torvalds
From: Vladimir Oltean <vladimir.oltean@nxp.com> Some drivers can't dynamically change the VLAN filtering option, or impose some restrictions, it would be nice to propagate this info through netlink instead of printing it to a kernel log that might never be read. Also netlink extack includes the module that emitted the message, which means that it's easier to figure out which ones are driver-generated errors as opposed to command misuse. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> --- drivers/net/dsa/b53/b53_common.c | 3 ++- drivers/net/dsa/b53/b53_priv.h | 3 ++- drivers/net/dsa/dsa_loop.c | 3 ++- drivers/net/dsa/hirschmann/hellcreek.c | 3 ++- drivers/net/dsa/lantiq_gswip.c | 10 +++++++--- drivers/net/dsa/microchip/ksz8795.c | 3 ++- drivers/net/dsa/microchip/ksz9477.c | 3 ++- drivers/net/dsa/mt7530.c | 4 ++-- drivers/net/dsa/mv88e6xxx/chip.c | 3 ++- drivers/net/dsa/ocelot/felix.c | 3 ++- drivers/net/dsa/qca8k.c | 3 ++- drivers/net/dsa/realtek-smi-core.h | 4 ++-- drivers/net/dsa/rtl8366.c | 3 ++- drivers/net/dsa/sja1105/sja1105.h | 3 ++- drivers/net/dsa/sja1105/sja1105_devlink.c | 2 +- drivers/net/dsa/sja1105/sja1105_main.c | 9 +++++---- include/net/dsa.h | 3 ++- net/dsa/dsa_priv.h | 3 ++- net/dsa/port.c | 18 +++++++++++------- net/dsa/slave.c | 3 ++- net/dsa/switch.c | 6 +++++- 21 files changed, 61 insertions(+), 34 deletions(-)
diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index 98cc051e513e..ae86ded1e2a1 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c@@ -1409,7 +1409,8 @@ void b53_phylink_mac_link_up(struct dsa_switch *ds, int port, } EXPORT_SYMBOL(b53_phylink_mac_link_up); -int b53_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering) +int b53_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering, + struct netlink_ext_ack *extack) { struct b53_device *dev = ds->priv;
diff --git a/drivers/net/dsa/b53/b53_priv.h b/drivers/net/dsa/b53/b53_priv.h
index fc5d6fddb3fe..faf983fbca82 100644
--- a/drivers/net/dsa/b53/b53_priv.h
+++ b/drivers/net/dsa/b53/b53_priv.h@@ -346,7 +346,8 @@ void b53_phylink_mac_link_up(struct dsa_switch *ds, int port, struct phy_device *phydev, int speed, int duplex, bool tx_pause, bool rx_pause); -int b53_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering); +int b53_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering, + struct netlink_ext_ack *extack); int b53_vlan_add(struct dsa_switch *ds, int port, const struct switchdev_obj_port_vlan *vlan, struct netlink_ext_ack *extack);
diff --git a/drivers/net/dsa/dsa_loop.c b/drivers/net/dsa/dsa_loop.c
index e55b63a7e907..bfdf3324aac3 100644
--- a/drivers/net/dsa/dsa_loop.c
+++ b/drivers/net/dsa/dsa_loop.c@@ -190,7 +190,8 @@ static void dsa_loop_port_stp_state_set(struct dsa_switch *ds, int port, } static int dsa_loop_port_vlan_filtering(struct dsa_switch *ds, int port, - bool vlan_filtering) + bool vlan_filtering, + struct netlink_ext_ack *extack) { dev_dbg(ds->dev, "%s: port: %d, vlan_filtering: %d\n", __func__, port, vlan_filtering);
diff --git a/drivers/net/dsa/hirschmann/hellcreek.c b/drivers/net/dsa/hirschmann/hellcreek.c
index 5816ef922e55..463137c39db2 100644
--- a/drivers/net/dsa/hirschmann/hellcreek.c
+++ b/drivers/net/dsa/hirschmann/hellcreek.c@@ -875,7 +875,8 @@ static int hellcreek_fdb_dump(struct dsa_switch *ds, int port, } static int hellcreek_vlan_filtering(struct dsa_switch *ds, int port, - bool vlan_filtering) + bool vlan_filtering, + struct netlink_ext_ack *extack) { struct hellcreek *hellcreek = ds->priv;
diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c
index 174ca3a484a0..52e865a3912c 100644
--- a/drivers/net/dsa/lantiq_gswip.c
+++ b/drivers/net/dsa/lantiq_gswip.c@@ -727,14 +727,18 @@ static int gswip_pce_load_microcode(struct gswip_priv *priv) } static int gswip_port_vlan_filtering(struct dsa_switch *ds, int port, - bool vlan_filtering) + bool vlan_filtering, + struct netlink_ext_ack *extack) { struct net_device *bridge = dsa_to_port(ds, port)->bridge_dev; struct gswip_priv *priv = ds->priv; /* Do not allow changing the VLAN filtering options while in bridge */ - if (bridge && !!(priv->port_vlan_filter & BIT(port)) != vlan_filtering) + if (bridge && !!(priv->port_vlan_filter & BIT(port)) != vlan_filtering) { + NL_SET_ERR_MSG_MOD(extack, + "Dynamic toggling of vlan_filtering not supported"); return -EIO; + } if (vlan_filtering) { /* Use port based VLAN tag */
@@ -773,7 +777,7 @@ static int gswip_setup(struct dsa_switch *ds) /* disable port fetch/store dma on all ports */ for (i = 0; i < priv->hw_info->max_ports; i++) { gswip_port_disable(ds, i); - gswip_port_vlan_filtering(ds, i, false); + gswip_port_vlan_filtering(ds, i, false, NULL); } /* enable Switch */
diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index 1e27a3e58141..b4b7de63ca79 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c@@ -783,7 +783,8 @@ static void ksz8795_flush_dyn_mac_table(struct ksz_device *dev, int port) } static int ksz8795_port_vlan_filtering(struct dsa_switch *ds, int port, - bool flag) + bool flag, + struct netlink_ext_ack *extack) { struct ksz_device *dev = ds->priv;
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 772e34d5b6b8..55e5d479acce 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c@@ -493,7 +493,8 @@ static void ksz9477_flush_dyn_mac_table(struct ksz_device *dev, int port) } static int ksz9477_port_vlan_filtering(struct dsa_switch *ds, int port, - bool flag) + bool flag, + struct netlink_ext_ack *extack) { struct ksz_device *dev = ds->priv;
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index c089cd48e65d..c17de2bcf2fe 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c@@ -1376,8 +1376,8 @@ mt7530_vlan_cmd(struct mt7530_priv *priv, enum mt7530_vlan_cmd cmd, u16 vid) } static int -mt7530_port_vlan_filtering(struct dsa_switch *ds, int port, - bool vlan_filtering) +mt7530_port_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering, + struct netlink_ext_ack *extack) { if (vlan_filtering) { /* The port is being kept as VLAN-unaware port when bridge is
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index d46f0c096c97..903d619e08ed 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c@@ -1600,7 +1600,8 @@ static int mv88e6xxx_port_check_hw_vlan(struct dsa_switch *ds, int port, } static int mv88e6xxx_port_vlan_filtering(struct dsa_switch *ds, int port, - bool vlan_filtering) + bool vlan_filtering, + struct netlink_ext_ack *extack) { struct mv88e6xxx_chip *chip = ds->priv; u16 mode = vlan_filtering ? MV88E6XXX_PORT_CTL2_8021Q_MODE_SECURE :
diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c
index 4db54d91eae2..c1e02d56dd45 100644
--- a/drivers/net/dsa/ocelot/felix.c
+++ b/drivers/net/dsa/ocelot/felix.c@@ -643,7 +643,8 @@ static int felix_vlan_prepare(struct dsa_switch *ds, int port, flags & BRIDGE_VLAN_INFO_UNTAGGED); } -static int felix_vlan_filtering(struct dsa_switch *ds, int port, bool enabled) +static int felix_vlan_filtering(struct dsa_switch *ds, int port, bool enabled, + struct netlink_ext_ack *extack) { struct ocelot *ocelot = ds->priv;
diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c
index 73978e7e85cd..cdaf9f85a2cb 100644
--- a/drivers/net/dsa/qca8k.c
+++ b/drivers/net/dsa/qca8k.c@@ -1294,7 +1294,8 @@ qca8k_port_fdb_dump(struct dsa_switch *ds, int port, } static int -qca8k_port_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering) +qca8k_port_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering, + struct netlink_ext_ack *extack) { struct qca8k_priv *priv = ds->priv;
diff --git a/drivers/net/dsa/realtek-smi-core.h b/drivers/net/dsa/realtek-smi-core.h
index 93a3e05a6f71..fcf465f7f922 100644
--- a/drivers/net/dsa/realtek-smi-core.h
+++ b/drivers/net/dsa/realtek-smi-core.h@@ -130,8 +130,8 @@ int rtl8366_enable_vlan4k(struct realtek_smi *smi, bool enable); int rtl8366_enable_vlan(struct realtek_smi *smi, bool enable); int rtl8366_reset_vlan(struct realtek_smi *smi); int rtl8366_init_vlan(struct realtek_smi *smi); -int rtl8366_vlan_filtering(struct dsa_switch *ds, int port, - bool vlan_filtering); +int rtl8366_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering, + struct netlink_ext_ack *extack); int rtl8366_vlan_add(struct dsa_switch *ds, int port, const struct switchdev_obj_port_vlan *vlan, struct netlink_ext_ack *extack);
diff --git a/drivers/net/dsa/rtl8366.c b/drivers/net/dsa/rtl8366.c
index 76303a77aa82..75897a369096 100644
--- a/drivers/net/dsa/rtl8366.c
+++ b/drivers/net/dsa/rtl8366.c@@ -340,7 +340,8 @@ int rtl8366_init_vlan(struct realtek_smi *smi) } EXPORT_SYMBOL_GPL(rtl8366_init_vlan); -int rtl8366_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering) +int rtl8366_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering, + struct netlink_ext_ack *extack) { struct realtek_smi *smi = ds->priv; struct rtl8366_vlan_4k vlan4k;
diff --git a/drivers/net/dsa/sja1105/sja1105.h b/drivers/net/dsa/sja1105/sja1105.h
index 15a0893d0ff1..90f0f6f3124e 100644
--- a/drivers/net/dsa/sja1105/sja1105.h
+++ b/drivers/net/dsa/sja1105/sja1105.h@@ -247,7 +247,8 @@ enum sja1105_reset_reason { int sja1105_static_config_reload(struct sja1105_private *priv, enum sja1105_reset_reason reason); -int sja1105_vlan_filtering(struct dsa_switch *ds, int port, bool enabled); +int sja1105_vlan_filtering(struct dsa_switch *ds, int port, bool enabled, + struct netlink_ext_ack *extack); void sja1105_frame_memory_partitioning(struct sja1105_private *priv); /* From sja1105_devlink.c */
diff --git a/drivers/net/dsa/sja1105/sja1105_devlink.c b/drivers/net/dsa/sja1105/sja1105_devlink.c
index b4bf1b10e66c..b6a4a16b8c7e 100644
--- a/drivers/net/dsa/sja1105/sja1105_devlink.c
+++ b/drivers/net/dsa/sja1105/sja1105_devlink.c@@ -143,7 +143,7 @@ static int sja1105_best_effort_vlan_filtering_set(struct sja1105_private *priv, dp = dsa_to_port(ds, port); vlan_filtering = dsa_port_is_vlan_filtering(dp); - rc = sja1105_vlan_filtering(ds, port, vlan_filtering); + rc = sja1105_vlan_filtering(ds, port, vlan_filtering, NULL); if (rc) break; }
diff --git a/drivers/net/dsa/sja1105/sja1105_main.c b/drivers/net/dsa/sja1105/sja1105_main.c
index 6aea8034c32b..85a39d599ff3 100644
--- a/drivers/net/dsa/sja1105/sja1105_main.c
+++ b/drivers/net/dsa/sja1105/sja1105_main.c@@ -2639,7 +2639,8 @@ static int sja1105_build_vlan_table(struct sja1105_private *priv, bool notify) * which can only be partially reconfigured at runtime (and not the TPID). * So a switch reset is required. */ -int sja1105_vlan_filtering(struct dsa_switch *ds, int port, bool enabled) +int sja1105_vlan_filtering(struct dsa_switch *ds, int port, bool enabled, + struct netlink_ext_ack *extack) { struct sja1105_l2_lookup_params_entry *l2_lookup_params; struct sja1105_general_params_entry *general_params;
@@ -2653,8 +2654,8 @@ int sja1105_vlan_filtering(struct dsa_switch *ds, int port, bool enabled) list_for_each_entry(rule, &priv->flow_block.rules, list) { if (rule->type == SJA1105_RULE_VL) { - dev_err(ds->dev, - "Cannot change VLAN filtering with active VL rules\n"); + NL_SET_ERR_MSG_MOD(extack, + "Cannot change VLAN filtering with active VL rules"); return -EBUSY; } }
@@ -2736,7 +2737,7 @@ int sja1105_vlan_filtering(struct dsa_switch *ds, int port, bool enabled) rc = sja1105_static_config_reload(priv, SJA1105_VLAN_FILTERING); if (rc) - dev_err(ds->dev, "Failed to change VLAN Ethertype\n"); + NL_SET_ERR_MSG_MOD(extack, "Failed to change VLAN Ethertype"); /* Switch port identification based on 802.1Q is only passable * if we are not under a vlan_filtering bridge. So make sure
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 94dfe96df39a..f9e9c149322f 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h@@ -639,7 +639,8 @@ struct dsa_switch_ops { * VLAN support */ int (*port_vlan_filtering)(struct dsa_switch *ds, int port, - bool vlan_filtering); + bool vlan_filtering, + struct netlink_ext_ack *extack); int (*port_vlan_add)(struct dsa_switch *ds, int port, const struct switchdev_obj_port_vlan *vlan, struct netlink_ext_ack *extack);
diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
index 17a9f82db937..e9d1e76c42ba 100644
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h@@ -170,7 +170,8 @@ int dsa_port_lag_change(struct dsa_port *dp, int dsa_port_lag_join(struct dsa_port *dp, struct net_device *lag_dev, struct netdev_lag_upper_info *uinfo); void dsa_port_lag_leave(struct dsa_port *dp, struct net_device *lag_dev); -int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering); +int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering, + struct netlink_ext_ack *extack); bool dsa_port_skip_vlan_configuration(struct dsa_port *dp); int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock); int dsa_port_mtu_change(struct dsa_port *dp, int new_mtu,
diff --git a/net/dsa/port.c b/net/dsa/port.c
index 03ecefe1064a..14a1d0d77657 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c@@ -294,7 +294,8 @@ void dsa_port_lag_leave(struct dsa_port *dp, struct net_device *lag) /* Must be called under rcu_read_lock() */ static bool dsa_port_can_apply_vlan_filtering(struct dsa_port *dp, - bool vlan_filtering) + bool vlan_filtering, + struct netlink_ext_ack *extack) { struct dsa_switch *ds = dp->ds; int err, i;
@@ -324,8 +325,8 @@ static bool dsa_port_can_apply_vlan_filtering(struct dsa_port *dp, */ err = br_vlan_get_info(br, vid, &br_info); if (err == 0) { - dev_err(ds->dev, "Must remove upper %s first\n", - upper_dev->name); + NL_SET_ERR_MSG_MOD(extack, + "Must first remove VLAN uppers having VIDs also present in bridge"); return false; } }
@@ -351,14 +352,16 @@ static bool dsa_port_can_apply_vlan_filtering(struct dsa_port *dp, if (other_bridge == dp->bridge_dev) continue; if (br_vlan_enabled(other_bridge) != vlan_filtering) { - dev_err(ds->dev, "VLAN filtering is a global setting\n"); + NL_SET_ERR_MSG_MOD(extack, + "VLAN filtering is a global setting"); return false; } } return true; } -int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering) +int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering, + struct netlink_ext_ack *extack) { struct dsa_switch *ds = dp->ds; bool apply;
@@ -372,7 +375,7 @@ int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering) * dsa_slave_switchdev_event(). */ rcu_read_lock(); - apply = dsa_port_can_apply_vlan_filtering(dp, vlan_filtering); + apply = dsa_port_can_apply_vlan_filtering(dp, vlan_filtering, extack); rcu_read_unlock(); if (!apply) return -EINVAL;
@@ -380,7 +383,8 @@ int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering) if (dsa_port_is_vlan_filtering(dp) == vlan_filtering) return 0; - err = ds->ops->port_vlan_filtering(ds, dp->index, vlan_filtering); + err = ds->ops->port_vlan_filtering(ds, dp->index, vlan_filtering, + extack); if (err) return err;
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 9ec487b63e13..5ecb43a1b6e0 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c@@ -286,7 +286,8 @@ static int dsa_slave_port_attr_set(struct net_device *dev, ret = dsa_port_set_state(dp, attr->u.stp_state); break; case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: - ret = dsa_port_vlan_filtering(dp, attr->u.vlan_filtering); + ret = dsa_port_vlan_filtering(dp, attr->u.vlan_filtering, + extack); break; case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: ret = dsa_port_ageing_time(dp, attr->u.ageing_time);
diff --git a/net/dsa/switch.c b/net/dsa/switch.c
index c82d201181a5..db2a9b221988 100644
--- a/net/dsa/switch.c
+++ b/net/dsa/switch.c@@ -106,6 +106,7 @@ static int dsa_switch_bridge_leave(struct dsa_switch *ds, { bool unset_vlan_filtering = br_vlan_enabled(info->br); struct dsa_switch_tree *dst = ds->dst; + struct netlink_ext_ack extack = {0}; int err, i; if (dst->index == info->tree_index && ds->index == info->sw_index &&
@@ -137,7 +138,10 @@ static int dsa_switch_bridge_leave(struct dsa_switch *ds, } if (unset_vlan_filtering) { err = dsa_port_vlan_filtering(dsa_to_port(ds, info->port), - false); + false, &extack); + if (extack._msg) + dev_err(ds->dev, "port %d: %s\n", info->port, + extack._msg); if (err && err != EOPNOTSUPP) return err; }
--
2.25.1