diff options
Diffstat (limited to 'net/dsa')
| -rw-r--r-- | net/dsa/dsa.c | 2 | ||||
| -rw-r--r-- | net/dsa/dsa2.c | 67 | ||||
| -rw-r--r-- | net/dsa/dsa_priv.h | 61 | ||||
| -rw-r--r-- | net/dsa/port.c | 179 | ||||
| -rw-r--r-- | net/dsa/slave.c | 52 | ||||
| -rw-r--r-- | net/dsa/switch.c | 20 | ||||
| -rw-r--r-- | net/dsa/tag_8021q.c | 20 | ||||
| -rw-r--r-- | net/dsa/tag_dsa.c | 5 | ||||
| -rw-r--r-- | net/dsa/tag_ocelot.c | 2 | ||||
| -rw-r--r-- | net/dsa/tag_sja1105.c | 11 |
10 files changed, 208 insertions, 211 deletions
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c index ea5169e671ae..d9d0d227092c 100644 --- a/net/dsa/dsa.c +++ b/net/dsa/dsa.c @@ -406,7 +406,7 @@ EXPORT_SYMBOL_GPL(dsa_devlink_resource_register); void dsa_devlink_resources_unregister(struct dsa_switch *ds) { - devlink_resources_unregister(ds->devlink, NULL); + devlink_resources_unregister(ds->devlink); } EXPORT_SYMBOL_GPL(dsa_devlink_resources_unregister); diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c index 826957b6442b..8814fa0e44c8 100644 --- a/net/dsa/dsa2.c +++ b/net/dsa/dsa2.c @@ -129,35 +129,52 @@ void dsa_lag_unmap(struct dsa_switch_tree *dst, struct net_device *lag) } } +struct dsa_bridge *dsa_tree_bridge_find(struct dsa_switch_tree *dst, + const struct net_device *br) +{ + struct dsa_port *dp; + + list_for_each_entry(dp, &dst->ports, list) + if (dsa_port_bridge_dev_get(dp) == br) + return dp->bridge; + + return NULL; +} + static int dsa_bridge_num_find(const struct net_device *bridge_dev) { struct dsa_switch_tree *dst; - struct dsa_port *dp; - /* When preparing the offload for a port, it will have a valid - * dp->bridge_dev pointer but a not yet valid dp->bridge_num. - * However there might be other ports having the same dp->bridge_dev - * and a valid dp->bridge_num, so just ignore this port. - */ - list_for_each_entry(dst, &dsa_tree_list, list) - list_for_each_entry(dp, &dst->ports, list) - if (dp->bridge_dev == bridge_dev && - dp->bridge_num != -1) - return dp->bridge_num; + list_for_each_entry(dst, &dsa_tree_list, list) { + struct dsa_bridge *bridge; - return -1; + bridge = dsa_tree_bridge_find(dst, bridge_dev); + if (bridge) + return bridge->num; + } + + return 0; } -int dsa_bridge_num_get(const struct net_device *bridge_dev, int max) +unsigned int dsa_bridge_num_get(const struct net_device *bridge_dev, int max) { - int bridge_num = dsa_bridge_num_find(bridge_dev); + unsigned int bridge_num = dsa_bridge_num_find(bridge_dev); - if (bridge_num < 0) { - /* First port that offloads TX forwarding for this bridge */ - bridge_num = find_first_zero_bit(&dsa_fwd_offloading_bridges, - DSA_MAX_NUM_OFFLOADING_BRIDGES); + /* Switches without FDB isolation support don't get unique + * bridge numbering + */ + if (!max) + return 0; + + if (!bridge_num) { + /* First port that requests FDB isolation or TX forwarding + * offload for this bridge + */ + bridge_num = find_next_zero_bit(&dsa_fwd_offloading_bridges, + DSA_MAX_NUM_OFFLOADING_BRIDGES, + 1); if (bridge_num >= max) - return -1; + return 0; set_bit(bridge_num, &dsa_fwd_offloading_bridges); } @@ -165,13 +182,14 @@ int dsa_bridge_num_get(const struct net_device *bridge_dev, int max) return bridge_num; } -void dsa_bridge_num_put(const struct net_device *bridge_dev, int bridge_num) +void dsa_bridge_num_put(const struct net_device *bridge_dev, + unsigned int bridge_num) { - /* Check if the bridge is still in use, otherwise it is time - * to clean it up so we can reuse this bridge_num later. + /* Since we refcount bridges, we know that when we call this function + * it is no longer in use, so we can just go ahead and remove it from + * the bit mask. */ - if (dsa_bridge_num_find(bridge_dev) < 0) - clear_bit(bridge_num, &dsa_fwd_offloading_bridges); + clear_bit(bridge_num, &dsa_fwd_offloading_bridges); } struct dsa_switch *dsa_switch_find(int tree_index, int sw_index) @@ -1184,7 +1202,6 @@ static struct dsa_port *dsa_port_touch(struct dsa_switch *ds, int index) dp->ds = ds; dp->index = index; - dp->bridge_num = -1; INIT_LIST_HEAD(&dp->list); list_add_tail(&dp->list, &dst->ports); diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h index a5c9bc7b66c6..38ce5129a33d 100644 --- a/net/dsa/dsa_priv.h +++ b/net/dsa/dsa_priv.h @@ -52,10 +52,11 @@ struct dsa_notifier_ageing_time_info { /* DSA_NOTIFIER_BRIDGE_* */ struct dsa_notifier_bridge_info { - struct net_device *br; + struct dsa_bridge bridge; int tree_index; int sw_index; int port; + bool tx_fwd_offload; }; /* DSA_NOTIFIER_FDB_* */ @@ -258,54 +259,13 @@ int dsa_port_mrp_add_ring_role(const struct dsa_port *dp, const struct switchdev_obj_ring_role_mrp *mrp); int dsa_port_mrp_del_ring_role(const struct dsa_port *dp, const struct switchdev_obj_ring_role_mrp *mrp); +int dsa_port_phylink_create(struct dsa_port *dp); int dsa_port_link_register_of(struct dsa_port *dp); void dsa_port_link_unregister_of(struct dsa_port *dp); int dsa_port_hsr_join(struct dsa_port *dp, struct net_device *hsr); void dsa_port_hsr_leave(struct dsa_port *dp, struct net_device *hsr); int dsa_port_tag_8021q_vlan_add(struct dsa_port *dp, u16 vid, bool broadcast); void dsa_port_tag_8021q_vlan_del(struct dsa_port *dp, u16 vid, bool broadcast); -extern const struct phylink_mac_ops dsa_port_phylink_mac_ops; - -static inline bool dsa_port_offloads_bridge_port(struct dsa_port *dp, - const struct net_device *dev) -{ - return dsa_port_to_bridge_port(dp) == dev; -} - -static inline bool dsa_port_offloads_bridge(struct dsa_port *dp, - const struct net_device *bridge_dev) -{ - /* DSA ports connected to a bridge, and event was emitted - * for the bridge. - */ - return dp->bridge_dev == bridge_dev; -} - -/* Returns true if any port of this tree offloads the given net_device */ -static inline bool dsa_tree_offloads_bridge_port(struct dsa_switch_tree *dst, - const struct net_device *dev) -{ - struct dsa_port *dp; - - list_for_each_entry(dp, &dst->ports, list) - if (dsa_port_offloads_bridge_port(dp, dev)) - return true; - - return false; -} - -/* Returns true if any port of this tree offloads the given bridge */ -static inline bool dsa_tree_offloads_bridge(struct dsa_switch_tree *dst, - const struct net_device *bridge_dev) -{ - struct dsa_port *dp; - - list_for_each_entry(dp, &dst->ports, list) - if (dsa_port_offloads_bridge(dp, bridge_dev)) - return true; - - return false; -} /* slave.c */ extern const struct dsa_device_ops notag_netdev_ops; @@ -345,7 +305,7 @@ dsa_slave_to_master(const struct net_device *dev) static inline struct sk_buff *dsa_untag_bridge_pvid(struct sk_buff *skb) { struct dsa_port *dp = dsa_slave_to_port(skb->dev); - struct net_device *br = dp->bridge_dev; + struct net_device *br = dsa_port_bridge_dev_get(dp); struct net_device *dev = skb->dev; struct net_device *upper_dev; u16 vid, pvid, proto; @@ -415,7 +375,7 @@ dsa_find_designated_bridge_port_by_vid(struct net_device *master, u16 vid) if (dp->type != DSA_PORT_TYPE_USER) continue; - if (!dp->bridge_dev) + if (!dp->bridge) continue; if (dp->stp_state != BR_STATE_LEARNING && @@ -444,7 +404,7 @@ dsa_find_designated_bridge_port_by_vid(struct net_device *master, u16 vid) /* If the ingress port offloads the bridge, we mark the frame as autonomously * forwarded by hardware, so the software bridge doesn't forward in twice, back * to us, because we already did. However, if we're in fallback mode and we do - * software bridging, we are not offloading it, therefore the dp->bridge_dev + * software bridging, we are not offloading it, therefore the dp->bridge * pointer is not populated, and flooding needs to be done by software (we are * effectively operating in standalone ports mode). */ @@ -452,7 +412,7 @@ static inline void dsa_default_offload_fwd_mark(struct sk_buff *skb) { struct dsa_port *dp = dsa_slave_to_port(skb->dev); - skb->offload_fwd_mark = !!(dp->bridge_dev); + skb->offload_fwd_mark = !!(dp->bridge); } /* Helper for removing DSA header tags from packets in the RX path. @@ -546,8 +506,11 @@ int dsa_tree_change_tag_proto(struct dsa_switch_tree *dst, struct net_device *master, const struct dsa_device_ops *tag_ops, const struct dsa_device_ops *old_tag_ops); -int dsa_bridge_num_get(const struct net_device *bridge_dev, int max); -void dsa_bridge_num_put(const struct net_device *bridge_dev, int bridge_num); +unsigned int dsa_bridge_num_get(const struct net_device *bridge_dev, int max); +void dsa_bridge_num_put(const struct net_device *bridge_dev, + unsigned int bridge_num); +struct dsa_bridge *dsa_tree_bridge_find(struct dsa_switch_tree *dst, + const struct net_device *br); /* tag_8021q.c */ int dsa_tag_8021q_bridge_join(struct dsa_switch *ds, diff --git a/net/dsa/port.c b/net/dsa/port.c index f6f12ad2b525..05677e016982 100644 --- a/net/dsa/port.c +++ b/net/dsa/port.c @@ -130,7 +130,7 @@ int dsa_port_enable_rt(struct dsa_port *dp, struct phy_device *phy) return err; } - if (!dp->bridge_dev) + if (!dp->bridge) dsa_port_set_state_now(dp, BR_STATE_FORWARDING, false); if (dp->pl) @@ -158,7 +158,7 @@ void dsa_port_disable_rt(struct dsa_port *dp) if (dp->pl) phylink_stop(dp->pl); - if (!dp->bridge_dev) + if (!dp->bridge) dsa_port_set_state_now(dp, BR_STATE_DISABLED, false); if (ds->ops->port_disable) @@ -221,7 +221,7 @@ static int dsa_port_switchdev_sync_attrs(struct dsa_port *dp, struct netlink_ext_ack *extack) { struct net_device *brport_dev = dsa_port_to_bridge_port(dp); - struct net_device *br = dp->bridge_dev; + struct net_device *br = dsa_port_bridge_dev_get(dp); int err; err = dsa_port_inherit_brport_flags(dp, extack); @@ -270,52 +270,55 @@ static void dsa_port_switchdev_unsync_attrs(struct dsa_port *dp) */ } -static void dsa_port_bridge_tx_fwd_unoffload(struct dsa_port *dp, - struct net_device *bridge_dev) +static int dsa_port_bridge_create(struct dsa_port *dp, + struct net_device *br, + struct netlink_ext_ack *extack) { - int bridge_num = dp->bridge_num; struct dsa_switch *ds = dp->ds; + struct dsa_bridge *bridge; - /* No bridge TX forwarding offload => do nothing */ - if (!ds->ops->port_bridge_tx_fwd_unoffload || dp->bridge_num == -1) - return; + bridge = dsa_tree_bridge_find(ds->dst, br); + if (bridge) { + refcount_inc(&bridge->refcount); + dp->bridge = bridge; + return 0; + } - dp->bridge_num = -1; + bridge = kzalloc(sizeof(*bridge), GFP_KERNEL); + if (!bridge) + return -ENOMEM; - dsa_bridge_num_put(bridge_dev, bridge_num); + refcount_set(&bridge->refcount, 1); - /* Notify the chips only once the offload has been deactivated, so - * that they can update their configuration accordingly. - */ - ds->ops->port_bridge_tx_fwd_unoffload(ds, dp->index, bridge_dev, - bridge_num); + bridge->dev = br; + + bridge->num = dsa_bridge_num_get(br, ds->max_num_bridges); + if (ds->max_num_bridges && !bridge->num) { + NL_SET_ERR_MSG_MOD(extack, + "Range of offloadable bridges exceeded"); + kfree(bridge); + return -EOPNOTSUPP; + } + + dp->bridge = bridge; + + return 0; } -static bool dsa_port_bridge_tx_fwd_offload(struct dsa_port *dp, - struct net_device *bridge_dev) +static void dsa_port_bridge_destroy(struct dsa_port *dp, + const struct net_device *br) { - struct dsa_switch *ds = dp->ds; - int bridge_num, err; + struct dsa_bridge *bridge = dp->bridge; - if (!ds->ops->port_bridge_tx_fwd_offload) - return false; + dp->bridge = NULL; - bridge_num = dsa_bridge_num_get(bridge_dev, - ds->num_fwd_offloading_bridges); - if (bridge_num < 0) - return false; + if (!refcount_dec_and_test(&bridge->refcount)) + return; - dp->bridge_num = bridge_num; + if (bridge->num) + dsa_bridge_num_put(br, bridge->num); - /* Notify the driver */ - err = ds->ops->port_bridge_tx_fwd_offload(ds, dp->index, bridge_dev, - bridge_num); - if (err) { - dsa_port_bridge_tx_fwd_unoffload(dp, bridge_dev); - return false; - } - - return true; + kfree(bridge); } int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br, @@ -325,30 +328,32 @@ int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br, .tree_index = dp->ds->dst->index, .sw_index = dp->ds->index, .port = dp->index, - .br = br, }; struct net_device *dev = dp->slave; struct net_device *brport_dev; - bool tx_fwd_offload; int err; /* Here the interface is already bridged. Reflect the current * configuration so that drivers can program their chips accordingly. */ - dp->bridge_dev = br; + err = dsa_port_bridge_create(dp, br, extack); + if (err) + return err; brport_dev = dsa_port_to_bridge_port(dp); + info.bridge = *dp->bridge; err = dsa_broadcast(DSA_NOTIFIER_BRIDGE_JOIN, &info); if (err) goto out_rollback; - tx_fwd_offload = dsa_port_bridge_tx_fwd_offload(dp, br); + /* Drivers which support bridge TX forwarding should set this */ + dp->bridge->tx_fwd_offload = info.tx_fwd_offload; err = switchdev_bridge_port_offload(brport_dev, dev, dp, &dsa_slave_switchdev_notifier, &dsa_slave_switchdev_blocking_notifier, - tx_fwd_offload, extack); + dp->bridge->tx_fwd_offload, extack); if (err) goto out_rollback_unbridge; @@ -365,7 +370,7 @@ out_rollback_unoffload: out_rollback_unbridge: dsa_broadcast(DSA_NOTIFIER_BRIDGE_LEAVE, &info); out_rollback: - dp->bridge_dev = NULL; + dsa_port_bridge_destroy(dp, br); return err; } @@ -390,16 +395,14 @@ void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br) .tree_index = dp->ds->dst->index, .sw_index = dp->ds->index, .port = dp->index, - .br = br, + .bridge = *dp->bridge, }; int err; /* Here the port is already unbridged. Reflect the current configuration * so that drivers can program their chips accordingly. */ - dp->bridge_dev = NULL; - - dsa_port_bridge_tx_fwd_unoffload(dp, br); + dsa_port_bridge_destroy(dp, br); err = dsa_broadcast(DSA_NOTIFIER_BRIDGE_LEAVE, &info); if (err) @@ -477,12 +480,15 @@ err_lag_join: void dsa_port_pre_lag_leave(struct dsa_port *dp, struct net_device *lag) { - if (dp->bridge_dev) - dsa_port_pre_bridge_leave(dp, dp->bridge_dev); + struct net_device *br = dsa_port_bridge_dev_get(dp); + + if (br) + dsa_port_pre_bridge_leave(dp, br); } void dsa_port_lag_leave(struct dsa_port *dp, struct net_device *lag) { + struct net_device *br = dsa_port_bridge_dev_get(dp); struct dsa_notifier_lag_info info = { .sw_index = dp->ds->index, .port = dp->index, @@ -496,8 +502,8 @@ void dsa_port_lag_leave(struct dsa_port *dp, struct net_device *lag) /* Port might have been part of a LAG that in turn was * attached to a bridge. */ - if (dp->bridge_dev) - dsa_port_bridge_leave(dp, dp->bridge_dev); + if (br) + dsa_port_bridge_leave(dp, br); dp->lag_tx_enabled = false; dp->lag_dev = NULL; @@ -526,8 +532,8 @@ static bool dsa_port_can_apply_vlan_filtering(struct dsa_port *dp, * as long as we have 8021q uppers. */ if (vlan_filtering && dsa_port_is_user(dp)) { + struct net_device *br = dsa_port_bridge_dev_get(dp); struct net_device *upper_dev, *slave = dp->slave; - struct net_device *br = dp->bridge_dev; struct list_head *iter; netdev_for_each_upper_dev_rcu(slave, upper_dev, iter) { @@ -561,17 +567,15 @@ static bool dsa_port_can_apply_vlan_filtering(struct dsa_port *dp, * different setting than what is being requested. */ dsa_switch_for_each_port(other_dp, ds) { - struct net_device *other_bridge; + struct net_device *other_br = dsa_port_bridge_dev_get(other_dp); - other_bridge = other_dp->bridge_dev; - if (!other_bridge) - continue; /* If it's the same bridge, it also has same * vlan_filtering setting => no need to check */ - if (other_bridge == dp->bridge_dev) + if (!other_br || other_br == dsa_port_bridge_dev_get(dp)) continue; - if (br_vlan_enabled(other_bridge) != vlan_filtering) { + + if (br_vlan_enabled(other_br) != vlan_filtering) { NL_SET_ERR_MSG_MOD(extack, "VLAN filtering is a global setting"); return false; @@ -655,13 +659,13 @@ restore: */ bool dsa_port_skip_vlan_configuration(struct dsa_port *dp) { + struct net_device *br = dsa_port_bridge_dev_get(dp); struct dsa_switch *ds = dp->ds; - if (!dp->bridge_dev) + if (!br) return false; - return (!ds->configure_vlan_while_not_filtering && - !br_vlan_enabled(dp->bridge_dev)); + return !ds->configure_vlan_while_not_filtering && !br_vlan_enabled(br); } int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock) @@ -981,8 +985,11 @@ static void dsa_port_phylink_validate(struct phylink_config *config, struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); struct dsa_switch *ds = dp->ds; - if (!ds->ops->phylink_validate) + if (!ds->ops->phylink_validate) { + if (config->mac_capabilities) + phylink_generic_validate(config, supported, state); return; + } ds->ops->phylink_validate(ds, dp->index, supported, state); } @@ -1072,7 +1079,7 @@ static void dsa_port_phylink_mac_link_up(struct phylink_config *config, speed, duplex, tx_pause, rx_pause); } -const struct phylink_mac_ops dsa_port_phylink_mac_ops = { +static const struct phylink_mac_ops dsa_port_phylink_mac_ops = { .validate = dsa_port_phylink_validate, .mac_pcs_get_state = dsa_port_phylink_mac_pcs_get_state, .mac_config = dsa_port_phylink_mac_config, @@ -1081,6 +1088,36 @@ const struct phylink_mac_ops dsa_port_phylink_mac_ops = { .mac_link_up = dsa_port_phylink_mac_link_up, }; +int dsa_port_phylink_create(struct dsa_port *dp) +{ + struct dsa_switch *ds = dp->ds; + phy_interface_t mode; + int err; + + err = of_get_phy_mode(dp->dn, &mode); + if (err) + mode = PHY_INTERFACE_MODE_NA; + + /* Presence of phylink_mac_link_state or phylink_mac_an_restart is + * an indicator of a legacy phylink driver. + */ + if (ds->ops->phylink_mac_link_state || + ds->ops->phylink_mac_an_restart) + dp->pl_config.legacy_pre_march2020 = true; + + if (ds->ops->phylink_get_caps) + ds->ops->phylink_get_caps(ds, dp->index, &dp->pl_config); + + dp->pl = phylink_create(&dp->pl_config, of_fwnode_handle(dp->dn), + mode, &dsa_port_phylink_mac_ops); + if (IS_ERR(dp->pl)) { + pr_err("error creating PHYLINK: %ld\n", PTR_ERR(dp->pl)); + return PTR_ERR(dp->pl); + } + + return 0; +} + static int dsa_port_setup_phy_of(struct dsa_port *dp, bool enable) { struct dsa_switch *ds = dp->ds; @@ -1157,27 +1194,15 @@ static int dsa_port_phylink_register(struct dsa_port *dp) { struct dsa_switch *ds = dp->ds; struct device_node *port_dn = dp->dn; - phy_interface_t mode; int err; - err = of_get_phy_mode(port_dn, &mode); - if (err) - mode = PHY_INTERFACE_MODE_NA; - dp->pl_config.dev = ds->dev; dp->pl_config.type = PHYLINK_DEV; dp->pl_config.pcs_poll = ds->pcs_poll; - if (ds->ops->phylink_get_interfaces) - ds->ops->phylink_get_interfaces(ds, dp->index, - dp->pl_config.supported_interfaces); - - dp->pl = phylink_create(&dp->pl_config, of_fwnode_handle(port_dn), - mode, &dsa_port_phylink_mac_ops); - if (IS_ERR(dp->pl)) { - pr_err("error creating PHYLINK: %ld\n", PTR_ERR(dp->pl)); - return PTR_ERR(dp->pl); - } + err = dsa_port_phylink_create(dp); + if (err) + return err; err = phylink_of_phy_connect(dp->pl, port_dn, 0); if (err && err != -ENODEV) { diff --git a/net/dsa/slave.c b/net/dsa/slave.c index ad61f6bc8886..88f7b8686dac 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -289,14 +289,14 @@ static int dsa_slave_port_attr_set(struct net_device *dev, const void *ctx, ret = dsa_port_set_state(dp, attr->u.stp_state, true); break; case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: - if (!dsa_port_offloads_bridge(dp, attr->orig_dev)) + if (!dsa_port_offloads_bridge_dev(dp, attr->orig_dev)) return -EOPNOTSUPP; ret = dsa_port_vlan_filtering(dp, attr->u.vlan_filtering, extack); break; case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: - if (!dsa_port_offloads_bridge(dp, attr->orig_dev)) + if (!dsa_port_offloads_bridge_dev(dp, attr->orig_dev)) return -EOPNOTSUPP; ret = dsa_port_ageing_time(dp, attr->u.ageing_time); @@ -363,7 +363,7 @@ static int dsa_slave_vlan_add(struct net_device *dev, /* Deny adding a bridge VLAN when there is already an 802.1Q upper with * the same VID. */ - if (br_vlan_enabled(dp->bridge_dev)) { + if (br_vlan_enabled(dsa_port_bridge_dev_get(dp))) { rcu_read_lock(); err = dsa_slave_vlan_check_for_8021q_uppers(dev, &vlan); rcu_read_unlock(); @@ -409,7 +409,7 @@ static int dsa_slave_port_obj_add(struct net_device *dev, const void *ctx, err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj)); break; case SWITCHDEV_OBJ_ID_HOST_MDB: - if (!dsa_port_offloads_bridge(dp, obj->orig_dev)) + if (!dsa_port_offloads_bridge_dev(dp, obj->orig_dev)) return -EOPNOTSUPP; err = dsa_port_host_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj)); @@ -421,13 +421,13 @@ static int dsa_slave_port_obj_add(struct net_device *dev, const void *ctx, err = dsa_slave_vlan_add(dev, obj, extack); break; case SWITCHDEV_OBJ_ID_MRP: - if (!dsa_port_offloads_bridge(dp, obj->orig_dev)) + if (!dsa_port_offloads_bridge_dev(dp, obj->orig_dev)) return -EOPNOTSUPP; err = dsa_port_mrp_add(dp, SWITCHDEV_OBJ_MRP(obj)); break; case SWITCHDEV_OBJ_ID_RING_ROLE_MRP: - if (!dsa_port_offloads_bridge(dp, obj->orig_dev)) + if (!dsa_port_offloads_bridge_dev(dp, obj->orig_dev)) return -EOPNOTSUPP; err = dsa_port_mrp_add_ring_role(dp, @@ -483,7 +483,7 @@ static int dsa_slave_port_obj_del(struct net_device *dev, const void *ctx, err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj)); break; case SWITCHDEV_OBJ_ID_HOST_MDB: - if (!dsa_port_offloads_bridge(dp, obj->orig_dev)) + if (!dsa_port_offloads_bridge_dev(dp, obj->orig_dev)) return -EOPNOTSUPP; err = dsa_port_host_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj)); @@ -495,13 +495,13 @@ static int dsa_slave_port_obj_del(struct net_device *dev, const void *ctx, err = dsa_slave_vlan_del(dev, obj); break; case SWITCHDEV_OBJ_ID_MRP: - if (!dsa_port_offloads_bridge(dp, obj->orig_dev)) + if (!dsa_port_offloads_bridge_dev(dp, obj->orig_dev)) return -EOPNOTSUPP; err = dsa_port_mrp_del(dp, SWITCHDEV_OBJ_MRP(obj)); break; case SWITCHDEV_OBJ_ID_RING_ROLE_MRP: - if (!dsa_port_offloads_bridge(dp, obj->orig_dev)) + if (!dsa_port_offloads_bridge_dev(dp, obj->orig_dev)) return -EOPNOTSUPP; err = dsa_port_mrp_del_ring_role(dp, @@ -1564,7 +1564,7 @@ static void dsa_bridge_mtu_normalization(struct dsa_port *dp) if (!dp->ds->mtu_enforcement_ingress) return; - if (!dp->bridge_dev) + if (!dp->bridge) return; INIT_LIST_HEAD(&hw_port_list); @@ -1580,7 +1580,7 @@ static void dsa_bridge_mtu_normalization(struct dsa_port *dp) if (other_dp->type != DSA_PORT_TYPE_USER) continue; - if (other_dp->bridge_dev != dp->bridge_dev) + if (!dsa_port_bridge_same(dp, other_dp)) continue; if (!other_dp->ds->mtu_enforcement_ingress) @@ -1851,14 +1851,9 @@ static int dsa_slave_phy_setup(struct net_device *slave_dev) struct dsa_port *dp = dsa_slave_to_port(slave_dev); struct device_node *port_dn = dp->dn; struct dsa_switch *ds = dp->ds; - phy_interface_t mode; u32 phy_flags = 0; int ret; - ret = of_get_phy_mode(port_dn, &mode); - if (ret) - mode = PHY_INTERFACE_MODE_NA; - dp->pl_config.dev = &slave_dev->dev; dp->pl_config.type = PHYLINK_NETDEV; @@ -1871,17 +1866,9 @@ static int dsa_slave_phy_setup(struct net_device *slave_dev) dp->pl_config.poll_fixed_state = true; } - if (ds->ops->phylink_get_interfaces) - ds->ops->phylink_get_interfaces(ds, dp->index, - dp->pl_config.supported_interfaces); - - dp->pl = phylink_create(&dp->pl_config, of_fwnode_handle(port_dn), mode, - &dsa_port_phylink_mac_ops); - if (IS_ERR(dp->pl)) { - netdev_err(slave_dev, - "error creating PHYLINK: %ld\n", PTR_ERR(dp->pl)); - return PTR_ERR(dp->pl); - } + ret = dsa_port_phylink_create(dp); + if (ret) + return ret; if (ds->ops->get_phy_flags) phy_flags = ds->ops->get_phy_flags(ds, dp->index); @@ -2233,7 +2220,7 @@ dsa_prevent_bridging_8021q_upper(struct net_device *dev, struct netdev_notifier_changeupper_info *info) { struct netlink_ext_ack *ext_ack; - struct net_device *slave; + struct net_device *slave, *br; struct dsa_port *dp; ext_ack = netdev_notifier_info_to_extack(&info->info); @@ -2246,11 +2233,12 @@ dsa_prevent_bridging_8021q_upper(struct net_device *dev, return NOTIFY_DONE; dp = dsa_slave_to_port(slave); - if (!dp->bridge_dev) + br = dsa_port_bridge_dev_get(dp); + if (!br) return NOTIFY_DONE; /* Deny enslaving a VLAN device into a VLAN-aware bridge */ - if (br_vlan_enabled(dp->bridge_dev) && + if (br_vlan_enabled(br) && netif_is_bridge_master(info->upper_dev) && info->linking) { NL_SET_ERR_MSG_MOD(ext_ack, "Cannot enslave VLAN device into VLAN aware bridge"); @@ -2265,7 +2253,7 @@ dsa_slave_check_8021q_upper(struct net_device *dev, struct netdev_notifier_changeupper_info *info) { struct dsa_port *dp = dsa_slave_to_port(dev); - struct net_device *br = dp->bridge_dev; + struct net_device *br = dsa_port_bridge_dev_get(dp); struct bridge_vlan_info br_info; struct netlink_ext_ack *extack; int err = NOTIFY_DONE; @@ -2462,7 +2450,7 @@ static bool dsa_foreign_dev_check(const struct net_device *dev, struct dsa_switch_tree *dst = dp->ds->dst; if (netif_is_bridge_master(foreign_dev)) - return !dsa_tree_offloads_bridge(dst, foreign_dev); + return !dsa_tree_offloads_bridge_dev(dst, foreign_dev); if (netif_is_bridge_port(foreign_dev)) return !dsa_tree_offloads_bridge_port(dst, foreign_dev); diff --git a/net/dsa/switch.c b/net/dsa/switch.c index bb155a16d454..9c92edd96961 100644 --- a/net/dsa/switch.c +++ b/net/dsa/switch.c @@ -95,7 +95,8 @@ static int dsa_switch_bridge_join(struct dsa_switch *ds, if (!ds->ops->port_bridge_join) return -EOPNOTSUPP; - err = ds->ops->port_bridge_join(ds, info->port, info->br); + err = ds->ops->port_bridge_join(ds, info->port, info->bridge, + &info->tx_fwd_offload); if (err) return err; } @@ -104,7 +105,7 @@ static int dsa_switch_bridge_join(struct dsa_switch *ds, ds->ops->crosschip_bridge_join) { err = ds->ops->crosschip_bridge_join(ds, info->tree_index, info->sw_index, - info->port, info->br); + info->port, info->bridge); if (err) return err; } @@ -124,19 +125,20 @@ static int dsa_switch_bridge_leave(struct dsa_switch *ds, if (dst->index == info->tree_index && ds->index == info->sw_index && ds->ops->port_bridge_leave) - ds->ops->port_bridge_leave(ds, info->port, info->br); + ds->ops->port_bridge_leave(ds, info->port, info->bridge); if ((dst->index != info->tree_index || ds->index != info->sw_index) && ds->ops->crosschip_bridge_leave) ds->ops->crosschip_bridge_leave(ds, info->tree_index, info->sw_index, info->port, - info->br); + info->bridge); - if (ds->needs_standalone_vlan_filtering && !br_vlan_enabled(info->br)) { + if (ds->needs_standalone_vlan_filtering && + !br_vlan_enabled(info->bridge.dev)) { change_vlan_filtering = true; vlan_filtering = true; } else if (!ds->needs_standalone_vlan_filtering && - br_vlan_enabled(info->br)) { + br_vlan_enabled(info->bridge.dev)) { change_vlan_filtering = true; vlan_filtering = false; } @@ -151,11 +153,9 @@ static int dsa_switch_bridge_leave(struct dsa_switch *ds, */ if (change_vlan_filtering && ds->vlan_filtering_is_global) { dsa_switch_for_each_port(dp, ds) { - struct net_device *bridge_dev; + struct net_device *br = dsa_port_bridge_dev_get(dp); - bridge_dev = dp->bridge_dev; - - if (bridge_dev && br_vlan_enabled(bridge_dev)) { + if (br && br_vlan_enabled(br)) { change_vlan_filtering = false; break; } diff --git a/net/dsa/tag_8021q.c b/net/dsa/tag_8021q.c index 72cac2c0af7b..27712a81c967 100644 --- a/net/dsa/tag_8021q.c +++ b/net/dsa/tag_8021q.c @@ -67,10 +67,12 @@ #define DSA_8021Q_PORT(x) (((x) << DSA_8021Q_PORT_SHIFT) & \ DSA_8021Q_PORT_MASK) -u16 dsa_8021q_bridge_tx_fwd_offload_vid(int bridge_num) +u16 dsa_8021q_bridge_tx_fwd_offload_vid(unsigned int bridge_num) { - /* The VBID value of 0 is reserved for precise TX */ - return DSA_8021Q_DIR_TX | DSA_8021Q_VBID(bridge_num + 1); + /* The VBID value of 0 is reserved for precise TX, but it is also + * reserved/invalid for the bridge_num, so all is well. + */ + return DSA_8021Q_DIR_TX | DSA_8021Q_VBID(bridge_num); } EXPORT_SYMBOL_GPL(dsa_8021q_bridge_tx_fwd_offload_vid); @@ -335,7 +337,7 @@ dsa_port_tag_8021q_bridge_match(struct dsa_port *dp, return false; if (dsa_port_is_user(dp)) - return dp->bridge_dev == info->br; + return dsa_port_offloads_bridge(dp, &info->bridge); return false; } @@ -408,10 +410,9 @@ int dsa_tag_8021q_bridge_leave(struct dsa_switch *ds, } int dsa_tag_8021q_bridge_tx_fwd_offload(struct dsa_switch *ds, int port, - struct net_device *br, - int bridge_num) + struct dsa_bridge bridge) { - u16 tx_vid = dsa_8021q_bridge_tx_fwd_offload_vid(bridge_num); + u16 tx_vid = dsa_8021q_bridge_tx_fwd_offload_vid(bridge.num); return dsa_port_tag_8021q_vlan_add(dsa_to_port(ds, port), tx_vid, true); @@ -419,10 +420,9 @@ int dsa_tag_8021q_bridge_tx_fwd_offload(struct dsa_switch *ds, int port, EXPORT_SYMBOL_GPL(dsa_tag_8021q_bridge_tx_fwd_offload); void dsa_tag_8021q_bridge_tx_fwd_unoffload(struct dsa_switch *ds, int port, - struct net_device *br, - int bridge_num) + struct dsa_bridge bridge) { - u16 tx_vid = dsa_8021q_bridge_tx_fwd_offload_vid(bridge_num); + u16 tx_vid = dsa_8021q_bridge_tx_fwd_offload_vid(bridge.num); dsa_port_tag_8021q_vlan_del(dsa_to_port(ds, port), tx_vid, true); } diff --git a/net/dsa/tag_dsa.c b/net/dsa/tag_dsa.c index b3da4b2ea11c..8abf39dcac64 100644 --- a/net/dsa/tag_dsa.c +++ b/net/dsa/tag_dsa.c @@ -132,6 +132,7 @@ static struct sk_buff *dsa_xmit_ll(struct sk_buff *skb, struct net_device *dev, u8 *dsa_header; if (skb->offload_fwd_mark) { + unsigned int bridge_num = dsa_port_bridge_num_get(dp); struct dsa_switch_tree *dst = dp->ds->dst; cmd = DSA_CMD_FORWARD; @@ -140,7 +141,7 @@ static struct sk_buff *dsa_xmit_ll(struct sk_buff *skb, struct net_device *dev, * packets on behalf of a virtual switch device with an index * past the physical switches. */ - tag_dev = dst->last_switch + 1 + dp->bridge_num; + tag_dev = dst->last_switch + bridge_num; tag_port = 0; } else { cmd = DSA_CMD_FROM_CPU; @@ -165,7 +166,7 @@ static struct sk_buff *dsa_xmit_ll(struct sk_buff *skb, struct net_device *dev, dsa_header[2] &= ~0x10; } } else { - struct net_device *br = dp->bridge_dev; + struct net_device *br = dsa_port_bridge_dev_get(dp); u16 vid; vid = br ? MV88E6XXX_VID_BRIDGED : MV88E6XXX_VID_STANDALONE; diff --git a/net/dsa/tag_ocelot.c b/net/dsa/tag_ocelot.c index de1c849a0a70..4ba460c5a880 100644 --- a/net/dsa/tag_ocelot.c +++ b/net/dsa/tag_ocelot.c @@ -12,7 +12,7 @@ static void ocelot_xmit_get_vlan_info(struct sk_buff *skb, struct dsa_port *dp, u64 *vlan_tci, u64 *tag_type) { - struct net_device *br = READ_ONCE(dp->bridge_dev); + struct net_device *br = dsa_port_bridge_dev_get(dp); struct vlan_ethhdr *hdr; u16 proto, tci; diff --git a/net/dsa/tag_sja1105.c b/net/dsa/tag_sja1105.c index 262c8833a910..6c293c2a3008 100644 --- a/net/dsa/tag_sja1105.c +++ b/net/dsa/tag_sja1105.c @@ -159,14 +159,16 @@ static u16 sja1105_xmit_tpid(struct dsa_port *dp) * need to find it. */ dsa_switch_for_each_port(other_dp, ds) { - if (!other_dp->bridge_dev) + struct net_device *br = dsa_port_bridge_dev_get(other_dp); + + if (!br) continue; /* Error is returned only if CONFIG_BRIDGE_VLAN_FILTERING, * which seems pointless to handle, as our port cannot become * VLAN-aware in that case. */ - br_vlan_get_proto(other_dp->bridge_dev, &proto); + br_vlan_get_proto(br, &proto); return proto; } @@ -180,7 +182,8 @@ static struct sk_buff *sja1105_imprecise_xmit(struct sk_buff *skb, struct net_device *netdev) { struct dsa_port *dp = dsa_slave_to_port(netdev); - struct net_device *br = dp->bridge_dev; + unsigned int bridge_num = dsa_port_bridge_num_get(dp); + struct net_device *br = dsa_port_bridge_dev_get(dp); u16 tx_vid; /* If the port is under a VLAN-aware bridge, just slide the @@ -196,7 +199,7 @@ static struct sk_buff *sja1105_imprecise_xmit(struct sk_buff *skb, * TX VLAN that targets the bridge's entire broadcast domain, * instead of just the specific port. */ - tx_vid = dsa_8021q_bridge_tx_fwd_offload_vid(dp->bridge_num); + tx_vid = dsa_8021q_bridge_tx_fwd_offload_vid(bridge_num); return dsa_8021q_xmit(skb, netdev, sja1105_xmit_tpid(dp), tx_vid); } |