// SPDX-License-Identifier: GPL-2.0-or-later/* * Handling of a single switch chip, part of a switch fabric * * Copyright (c) 2017 Savoir-faire Linux Inc. * Vivien Didelot <vivien.didelot@savoirfairelinux.com> */ #include <linux/if_bridge.h>#include <linux/netdevice.h>#include <linux/notifier.h>#include <linux/if_vlan.h>#include <net/switchdev.h> #include "dsa_priv.h" static unsigned int dsa_switch_fastest_ageing_time(struct dsa_switch *ds, unsigned int ageing_time){ int i; for (i = 0; i < ds->num_ports; ++i) { struct dsa_port *dp = dsa_to_port(ds, i); if (dp->ageing_time && dp->ageing_time < ageing_time) ageing_time = dp->ageing_time; } return ageing_time;} static int dsa_switch_ageing_time(struct dsa_switch *ds, struct dsa_notifier_ageing_time_info *info){ unsigned int ageing_time = info->ageing_time; if (ds->ageing_time_min && ageing_time < ds->ageing_time_min) return -ERANGE; if (ds->ageing_time_max && ageing_time > ds->ageing_time_max) return -ERANGE; /* Program the fastest ageing time in case of multiple bridges */ ageing_time = dsa_switch_fastest_ageing_time(ds, ageing_time); if (ds->ops->set_ageing_time) return ds->ops->set_ageing_time(ds, ageing_time); return 0;} static bool dsa_switch_mtu_match(struct dsa_switch *ds, int port, struct dsa_notifier_mtu_info *info){ if (ds->index == info->sw_index) return (port == info->port) || dsa_is_dsa_port(ds, port); if (!info->propagate_upstream) return false; if (dsa_is_dsa_port(ds, port) || dsa_is_cpu_port(ds, port)) return true; return false;} static int dsa_switch_mtu(struct dsa_switch *ds, struct dsa_notifier_mtu_info *info){ int port, ret; if (!ds->ops->port_change_mtu) return -EOPNOTSUPP; for (port = 0; port < ds->num_ports; port++) { if (dsa_switch_mtu_match(ds, port, info)) { ret = ds->ops->port_change_mtu(ds, port, info->mtu); if (ret) return ret; } } return 0;} static int dsa_switch_bridge_join(struct dsa_switch *ds, struct dsa_notifier_bridge_info *info){ struct dsa_switch_tree *dst = ds->dst; if (dst->index == info->tree_index && ds->index == info->sw_index && ds->ops->port_bridge_join) return ds->ops->port_bridge_join(ds, info->port, info->br); if ((dst->index != info->tree_index || ds->index != info->sw_index) && ds->ops->crosschip_bridge_join) return ds->ops->crosschip_bridge_join(ds, info->tree_index, info->sw_index, info->port, info->br); return 0;} static int dsa_switch_bridge_leave(struct dsa_switch *ds, struct dsa_notifier_bridge_info *info){ bool unset_vlan_filtering = br_vlan_enabled(info->br); struct dsa_switch_tree *dst = ds->dst; struct netlink_ext_ack extack = {0}; int err, port; if (dst->index == info->tree_index && ds->index == info->sw_index && ds->ops->port_bridge_join) ds->ops->port_bridge_leave(ds, info->port, info->br); if ((dst->index != info->tree_index || ds->index != info->sw_index) && ds->ops->crosschip_bridge_join) ds->ops->crosschip_bridge_leave(ds, info->tree_index, info->sw_index, info->port, info->br); /* If the bridge was vlan_filtering, the bridge core doesn't trigger an * event for changing vlan_filtering setting upon slave ports leaving * it. That is a good thing, because that lets us handle it and also * handle the case where the switch's vlan_filtering setting is global * (not per port). When that happens, the correct moment to trigger the * vlan_filtering callback is only when the last port leaves the last * VLAN-aware bridge. */ if (unset_vlan_filtering && ds->vlan_filtering_is_global) { for (port = 0; port < ds->num_ports; port++) { struct net_device *bridge_dev; bridge_dev = dsa_to_port(ds, port)->bridge_dev; if (bridge_dev && br_vlan_enabled(bridge_dev)) { unset_vlan_filtering = false; break; } } } if (unset_vlan_filtering) { err = dsa_port_vlan_filtering(dsa_to_port(ds, info->port), false, &extack); if (extack._msg) dev_err(ds->dev, "port %d: %s\n", info->port, extack._msg); if (err && err != EOPNOTSUPP) return err; } return 0;} static int dsa_switch_fdb_add(struct dsa_switch *ds, struct dsa_notifier_fdb_info *info){ int port = dsa_towards_port(ds, info->sw_index, info->port); if (!ds->ops->port_fdb_add) return -EOPNOTSUPP; return ds->ops->port_fdb_add(ds, port, info->addr, info->vid);} static int dsa_switch_fdb_del(struct dsa_switch *ds, struct dsa_notifier_fdb_info *info){ int port = dsa_towards_port(ds, info->sw_index, info->port); if (!ds->ops->port_fdb_del) return -EOPNOTSUPP; return ds->ops->port_fdb_del(ds, port, info->addr, info->vid);} static int dsa_switch_hsr_join(struct dsa_switch *ds, struct dsa_notifier_hsr_info *info){ if (ds->index == info->sw_index && ds->ops->port_hsr_join) return ds->ops->port_hsr_join(ds, info->port, info->hsr); return -EOPNOTSUPP;} static int dsa_switch_hsr_leave(struct dsa_switch *ds, struct dsa_notifier_hsr_info *info){ if (ds->index == info->sw_index && ds->ops->port_hsr_leave) return ds->ops->port_hsr_leave(ds, info->port, info->hsr); return -EOPNOTSUPP;} static int dsa_switch_lag_change(struct dsa_switch *ds, struct dsa_notifier_lag_info *info){ if (ds->index == info->sw_index && ds->ops->port_lag_change) return ds->ops->port_lag_change(ds, info->port); if (ds->index != info->sw_index && ds->ops->crosschip_lag_change) return ds->ops->crosschip_lag_change(ds, info->sw_index, info->port); return 0;} static int dsa_switch_lag_join(struct dsa_switch *ds, struct dsa_notifier_lag_info *info){ if (ds->index == info->sw_index && ds->ops->port_lag_join) return ds->ops->port_lag_join(ds, info->port, info->lag, info->info); if (ds->index != info->sw_index && ds->ops->crosschip_lag_join) return ds->ops->crosschip_lag_join(ds, info->sw_index, info->port, info->lag, info->info); return 0;} static int dsa_switch_lag_leave(struct dsa_switch *ds, struct dsa_notifier_lag_info *info){ if (ds->index == info->sw_index && ds->ops->port_lag_leave) return ds->ops->port_lag_leave(ds, info->port, info->lag); if (ds->index != info->sw_index && ds->ops->crosschip_lag_leave) return ds->ops->crosschip_lag_leave(ds, info->sw_index, info->port, info->lag); return 0;} static bool dsa_switch_mdb_match(struct dsa_switch *ds, int port, struct dsa_notifier_mdb_info *info){ if (ds->index == info->sw_index && port == info->port) return true; if (dsa_is_dsa_port(ds, port)) return true; return false;} static int dsa_switch_mdb_add(struct dsa_switch *ds, struct dsa_notifier_mdb_info *info){ int err = 0; int port; if (!ds->ops->port_mdb_add) return -EOPNOTSUPP; for (port = 0; port < ds->num_ports; port++) { if (dsa_switch_mdb_match(ds, port, info)) { err = ds->ops->port_mdb_add(ds, port, info->mdb); if (err) break; } } return err;} static int dsa_switch_mdb_del(struct dsa_switch *ds, struct dsa_notifier_mdb_info *info){ if (!ds->ops->port_mdb_del) return -EOPNOTSUPP; if (ds->index == info->sw_index) return ds->ops->port_mdb_del(ds, info->port, info->mdb); return 0;} static bool dsa_switch_vlan_match(struct dsa_switch *ds, int port, struct dsa_notifier_vlan_info *info){ if (ds->index == info->sw_index && port == info->port) return true; if (dsa_is_dsa_port(ds, port)) return true; return false;} static int dsa_switch_vlan_add(struct dsa_switch *ds, struct dsa_notifier_vlan_info *info){ int port, err; if (!ds->ops->port_vlan_add) return -EOPNOTSUPP; for (port = 0; port < ds->num_ports; port++) { if (dsa_switch_vlan_match(ds, port, info)) { err = ds->ops->port_vlan_add(ds, port, info->vlan, info->extack); if (err) return err; } } return 0;} static int dsa_switch_vlan_del(struct dsa_switch *ds, struct dsa_notifier_vlan_info *info){ if (!ds->ops->port_vlan_del) return -EOPNOTSUPP; if (ds->index == info->sw_index) return ds->ops->port_vlan_del(ds, info->port, info->vlan); /* Do not deprogram the DSA links as they may be used as conduit * for other VLAN members in the fabric. */ return 0;} static int dsa_switch_change_tag_proto(struct dsa_switch *ds, struct dsa_notifier_tag_proto_info *info){ const struct dsa_device_ops *tag_ops = info->tag_ops; int port, err; if (!ds->ops->change_tag_protocol) return -EOPNOTSUPP; ASSERT_RTNL(); for (port = 0; port < ds->num_ports; port++) { if (!dsa_is_cpu_port(ds, port)) continue; err = ds->ops->change_tag_protocol(ds, port, tag_ops->proto); if (err) return err; dsa_port_set_tag_protocol(dsa_to_port(ds, port), tag_ops); } /* Now that changing the tag protocol can no longer fail, let's update * the remaining bits which are "duplicated for faster access", and the * bits that depend on the tagger, such as the MTU. */ for (port = 0; port < ds->num_ports; port++) { if (dsa_is_user_port(ds, port)) { struct net_device *slave; slave = dsa_to_port(ds, port)->slave; dsa_slave_setup_tagger(slave); /* rtnl_mutex is held in dsa_tree_change_tag_proto */ dsa_slave_change_mtu(slave, slave->mtu); } } return 0;} static bool dsa_switch_mrp_match(struct dsa_switch *ds, int port, struct dsa_notifier_mrp_info *info){ if (ds->index == info->sw_index && port == info->port) return true; if (dsa_is_dsa_port(ds, port)) return true; return false;} static int dsa_switch_mrp_add(struct dsa_switch *ds, struct dsa_notifier_mrp_info *info){ int err = 0; int port; if (!ds->ops->port_mrp_add) return -EOPNOTSUPP; for (port = 0; port < ds->num_ports; port++) { if (dsa_switch_mrp_match(ds, port, info)) { err = ds->ops->port_mrp_add(ds, port, info->mrp); if (err) break; } } return err;} static int dsa_switch_mrp_del(struct dsa_switch *ds, struct dsa_notifier_mrp_info *info){ if (!ds->ops->port_mrp_del) return -EOPNOTSUPP; if (ds->index == info->sw_index) return ds->ops->port_mrp_del(ds, info->port, info->mrp); return 0;} static booldsa_switch_mrp_ring_role_match(struct dsa_switch *ds, int port, struct dsa_notifier_mrp_ring_role_info *info){ if (ds->index == info->sw_index && port == info->port) return true; if (dsa_is_dsa_port(ds, port)) return true; return false;} static intdsa_switch_mrp_add_ring_role(struct dsa_switch *ds, struct dsa_notifier_mrp_ring_role_info *info){ int err = 0; int port; if (!ds->ops->port_mrp_add) return -EOPNOTSUPP; for (port = 0; port < ds->num_ports; port++) { if (dsa_switch_mrp_ring_role_match(ds, port, info)) { err = ds->ops->port_mrp_add_ring_role(ds, port, info->mrp); if (err) break; } } return err;} static intdsa_switch_mrp_del_ring_role(struct dsa_switch *ds, struct dsa_notifier_mrp_ring_role_info *info){ if (!ds->ops->port_mrp_del) return -EOPNOTSUPP; if (ds->index == info->sw_index) return ds->ops->port_mrp_del_ring_role(ds, info->port, info->mrp); return 0;} static int dsa_switch_event(struct notifier_block *nb, unsigned long event, void *info){ struct dsa_switch *ds = container_of(nb, struct dsa_switch, nb); int err; switch (event) { case DSA_NOTIFIER_AGEING_TIME: err = dsa_switch_ageing_time(ds, info); break; case DSA_NOTIFIER_BRIDGE_JOIN: err = dsa_switch_bridge_join(ds, info); break; case DSA_NOTIFIER_BRIDGE_LEAVE: err = dsa_switch_bridge_leave(ds, info); break; case DSA_NOTIFIER_FDB_ADD: err = dsa_switch_fdb_add(ds, info); break; case DSA_NOTIFIER_FDB_DEL: err = dsa_switch_fdb_del(ds, info); break; case DSA_NOTIFIER_HSR_JOIN: err = dsa_switch_hsr_join(ds, info); break; case DSA_NOTIFIER_HSR_LEAVE: err = dsa_switch_hsr_leave(ds, info); break; case DSA_NOTIFIER_LAG_CHANGE: err = dsa_switch_lag_change(ds, info); break; case DSA_NOTIFIER_LAG_JOIN: err = dsa_switch_lag_join(ds, info); break; case DSA_NOTIFIER_LAG_LEAVE: err = dsa_switch_lag_leave(ds, info); break; case DSA_NOTIFIER_MDB_ADD: err = dsa_switch_mdb_add(ds, info); break; case DSA_NOTIFIER_MDB_DEL:Lines 1–500 of 553. 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// SPDX-License-Identifier: GPL-2.0-or-later /* * Handling of a single switch chip, part of a switch fabric * * Copyright (c) 2017 Savoir-faire Linux Inc. * Vivien Didelot <vivien.didelot@savoirfairelinux.com> */ #include <linux/if_bridge.h> #include <linux/netdevice.h> #include <linux/notifier.h> #include <linux/if_vlan.h> #include <net/switchdev.h> #include "dsa_priv.h" static unsigned int dsa_switch_fastest_ageing_time(struct dsa_switch *ds, unsigned int ageing_time) { int i; for (i = 0; i < ds->num_ports; ++i) { struct dsa_port *dp = dsa_to_port(ds, i); if (dp->ageing_time && dp->ageing_time < ageing_time) ageing_time = dp->ageing_time; } return ageing_time; } static int dsa_switch_ageing_time(struct dsa_switch *ds, struct dsa_notifier_ageing_time_info *info) { unsigned int ageing_time = info->ageing_time; if (ds->ageing_time_min && ageing_time < ds->ageing_time_min) return -ERANGE; if (ds->ageing_time_max && ageing_time > ds->ageing_time_max) return -ERANGE; /* Program the fastest ageing time in case of multiple bridges */ ageing_time = dsa_switch_fastest_ageing_time(ds, ageing_time); if (ds->ops->set_ageing_time) return ds->ops->set_ageing_time(ds, ageing_time); return 0; } static bool dsa_switch_mtu_match(struct dsa_switch *ds, int port, struct dsa_notifier_mtu_info *info) { if (ds->index == info->sw_index) return (port == info->port) || dsa_is_dsa_port(ds, port); if (!info->propagate_upstream) return false; if (dsa_is_dsa_port(ds, port) || dsa_is_cpu_port(ds, port)) return true; return false; } static int dsa_switch_mtu(struct dsa_switch *ds, struct dsa_notifier_mtu_info *info) { int port, ret; if (!ds->ops->port_change_mtu) return -EOPNOTSUPP; for (port = 0; port < ds->num_ports; port++) { if (dsa_switch_mtu_match(ds, port, info)) { ret = ds->ops->port_change_mtu(ds, port, info->mtu); if (ret) return ret; } } return 0; } static int dsa_switch_bridge_join(struct dsa_switch *ds, struct dsa_notifier_bridge_info *info) { struct dsa_switch_tree *dst = ds->dst; if (dst->index == info->tree_index && ds->index == info->sw_index && ds->ops->port_bridge_join) return ds->ops->port_bridge_join(ds, info->port, info->br); if ((dst->index != info->tree_index || ds->index != info->sw_index) && ds->ops->crosschip_bridge_join) return ds->ops->crosschip_bridge_join(ds, info->tree_index, info->sw_index, info->port, info->br); return 0; } static int dsa_switch_bridge_leave(struct dsa_switch *ds, struct dsa_notifier_bridge_info *info) { bool unset_vlan_filtering = br_vlan_enabled(info->br); struct dsa_switch_tree *dst = ds->dst; struct netlink_ext_ack extack = {0}; int err, port; if (dst->index == info->tree_index && ds->index == info->sw_index && ds->ops->port_bridge_join) ds->ops->port_bridge_leave(ds, info->port, info->br); if ((dst->index != info->tree_index || ds->index != info->sw_index) && ds->ops->crosschip_bridge_join) ds->ops->crosschip_bridge_leave(ds, info->tree_index, info->sw_index, info->port, info->br); /* If the bridge was vlan_filtering, the bridge core doesn't trigger an * event for changing vlan_filtering setting upon slave ports leaving * it. That is a good thing, because that lets us handle it and also * handle the case where the switch's vlan_filtering setting is global * (not per port). When that happens, the correct moment to trigger the * vlan_filtering callback is only when the last port leaves the last * VLAN-aware bridge. */ if (unset_vlan_filtering && ds->vlan_filtering_is_global) { for (port = 0; port < ds->num_ports; port++) { struct net_device *bridge_dev; bridge_dev = dsa_to_port(ds, port)->bridge_dev; if (bridge_dev && br_vlan_enabled(bridge_dev)) { unset_vlan_filtering = false; break; } } } if (unset_vlan_filtering) { err = dsa_port_vlan_filtering(dsa_to_port(ds, info->port), false, &extack); if (extack._msg) dev_err(ds->dev, "port %d: %s\n", info->port, extack._msg); if (err && err != EOPNOTSUPP) return err; } return 0; } static int dsa_switch_fdb_add(struct dsa_switch *ds, struct dsa_notifier_fdb_info *info) { int port = dsa_towards_port(ds, info->sw_index, info->port); if (!ds->ops->port_fdb_add) return -EOPNOTSUPP; return ds->ops->port_fdb_add(ds, port, info->addr, info->vid); } static int dsa_switch_fdb_del(struct dsa_switch *ds, struct dsa_notifier_fdb_info *info) { int port = dsa_towards_port(ds, info->sw_index, info->port); if (!ds->ops->port_fdb_del) return -EOPNOTSUPP; return ds->ops->port_fdb_del(ds, port, info->addr, info->vid); } static int dsa_switch_hsr_join(struct dsa_switch *ds, struct dsa_notifier_hsr_info *info) { if (ds->index == info->sw_index && ds->ops->port_hsr_join) return ds->ops->port_hsr_join(ds, info->port, info->hsr); return -EOPNOTSUPP; } static int dsa_switch_hsr_leave(struct dsa_switch *ds, struct dsa_notifier_hsr_info *info) { if (ds->index == info->sw_index && ds->ops->port_hsr_leave) return ds->ops->port_hsr_leave(ds, info->port, info->hsr); return -EOPNOTSUPP; } static int dsa_switch_lag_change(struct dsa_switch *ds, struct dsa_notifier_lag_info *info) { if (ds->index == info->sw_index && ds->ops->port_lag_change) return ds->ops->port_lag_change(ds, info->port); if (ds->index != info->sw_index && ds->ops->crosschip_lag_change) return ds->ops->crosschip_lag_change(ds, info->sw_index, info->port); return 0; } static int dsa_switch_lag_join(struct dsa_switch *ds, struct dsa_notifier_lag_info *info) { if (ds->index == info->sw_index && ds->ops->port_lag_join) return ds->ops->port_lag_join(ds, info->port, info->lag, info->info); if (ds->index != info->sw_index && ds->ops->crosschip_lag_join) return ds->ops->crosschip_lag_join(ds, info->sw_index, info->port, info->lag, info->info); return 0; } static int dsa_switch_lag_leave(struct dsa_switch *ds, struct dsa_notifier_lag_info *info) { if (ds->index == info->sw_index && ds->ops->port_lag_leave) return ds->ops->port_lag_leave(ds, info->port, info->lag); if (ds->index != info->sw_index && ds->ops->crosschip_lag_leave) return ds->ops->crosschip_lag_leave(ds, info->sw_index, info->port, info->lag); return 0; } static bool dsa_switch_mdb_match(struct dsa_switch *ds, int port, struct dsa_notifier_mdb_info *info) { if (ds->index == info->sw_index && port == info->port) return true; if (dsa_is_dsa_port(ds, port)) return true; return false; } static int dsa_switch_mdb_add(struct dsa_switch *ds, struct dsa_notifier_mdb_info *info) { int err = 0; int port; if (!ds->ops->port_mdb_add) return -EOPNOTSUPP; for (port = 0; port < ds->num_ports; port++) { if (dsa_switch_mdb_match(ds, port, info)) { err = ds->ops->port_mdb_add(ds, port, info->mdb); if (err) break; } } return err; } static int dsa_switch_mdb_del(struct dsa_switch *ds, struct dsa_notifier_mdb_info *info) { if (!ds->ops->port_mdb_del) return -EOPNOTSUPP; if (ds->index == info->sw_index) return ds->ops->port_mdb_del(ds, info->port, info->mdb); return 0; } static bool dsa_switch_vlan_match(struct dsa_switch *ds, int port, struct dsa_notifier_vlan_info *info) { if (ds->index == info->sw_index && port == info->port) return true; if (dsa_is_dsa_port(ds, port)) return true; return false; } static int dsa_switch_vlan_add(struct dsa_switch *ds, struct dsa_notifier_vlan_info *info) { int port, err; if (!ds->ops->port_vlan_add) return -EOPNOTSUPP; for (port = 0; port < ds->num_ports; port++) { if (dsa_switch_vlan_match(ds, port, info)) { err = ds->ops->port_vlan_add(ds, port, info->vlan, info->extack); if (err) return err; } } return 0; } static int dsa_switch_vlan_del(struct dsa_switch *ds, struct dsa_notifier_vlan_info *info) { if (!ds->ops->port_vlan_del) return -EOPNOTSUPP; if (ds->index == info->sw_index) return ds->ops->port_vlan_del(ds, info->port, info->vlan); /* Do not deprogram the DSA links as they may be used as conduit * for other VLAN members in the fabric. */ return 0; } static int dsa_switch_change_tag_proto(struct dsa_switch *ds, struct dsa_notifier_tag_proto_info *info) { const struct dsa_device_ops *tag_ops = info->tag_ops; int port, err; if (!ds->ops->change_tag_protocol) return -EOPNOTSUPP; ASSERT_RTNL(); for (port = 0; port < ds->num_ports; port++) { if (!dsa_is_cpu_port(ds, port)) continue; err = ds->ops->change_tag_protocol(ds, port, tag_ops->proto); if (err) return err; dsa_port_set_tag_protocol(dsa_to_port(ds, port), tag_ops); } /* Now that changing the tag protocol can no longer fail, let's update * the remaining bits which are "duplicated for faster access", and the * bits that depend on the tagger, such as the MTU. */ for (port = 0; port < ds->num_ports; port++) { if (dsa_is_user_port(ds, port)) { struct net_device *slave; slave = dsa_to_port(ds, port)->slave; dsa_slave_setup_tagger(slave); /* rtnl_mutex is held in dsa_tree_change_tag_proto */ dsa_slave_change_mtu(slave, slave->mtu); } } return 0; } static bool dsa_switch_mrp_match(struct dsa_switch *ds, int port, struct dsa_notifier_mrp_info *info) { if (ds->index == info->sw_index && port == info->port) return true; if (dsa_is_dsa_port(ds, port)) return true; return false; } static int dsa_switch_mrp_add(struct dsa_switch *ds, struct dsa_notifier_mrp_info *info) { int err = 0; int port; if (!ds->ops->port_mrp_add) return -EOPNOTSUPP; for (port = 0; port < ds->num_ports; port++) { if (dsa_switch_mrp_match(ds, port, info)) { err = ds->ops->port_mrp_add(ds, port, info->mrp); if (err) break; } } return err; } static int dsa_switch_mrp_del(struct dsa_switch *ds, struct dsa_notifier_mrp_info *info) { if (!ds->ops->port_mrp_del) return -EOPNOTSUPP; if (ds->index == info->sw_index) return ds->ops->port_mrp_del(ds, info->port, info->mrp); return 0; } static bool dsa_switch_mrp_ring_role_match(struct dsa_switch *ds, int port, struct dsa_notifier_mrp_ring_role_info *info) { if (ds->index == info->sw_index && port == info->port) return true; if (dsa_is_dsa_port(ds, port)) return true; return false; } static int dsa_switch_mrp_add_ring_role(struct dsa_switch *ds, struct dsa_notifier_mrp_ring_role_info *info) { int err = 0; int port; if (!ds->ops->port_mrp_add) return -EOPNOTSUPP; for (port = 0; port < ds->num_ports; port++) { if (dsa_switch_mrp_ring_role_match(ds, port, info)) { err = ds->ops->port_mrp_add_ring_role(ds, port, info->mrp); if (err) break; } } return err; } static int dsa_switch_mrp_del_ring_role(struct dsa_switch *ds, struct dsa_notifier_mrp_ring_role_info *info) { if (!ds->ops->port_mrp_del) return -EOPNOTSUPP; if (ds->index == info->sw_index) return ds->ops->port_mrp_del_ring_role(ds, info->port, info->mrp); return 0; } static int dsa_switch_event(struct notifier_block *nb, unsigned long event, void *info) { struct dsa_switch *ds = container_of(nb, struct dsa_switch, nb); int err; switch (event) { case DSA_NOTIFIER_AGEING_TIME: err = dsa_switch_ageing_time(ds, info); break; case DSA_NOTIFIER_BRIDGE_JOIN: err = dsa_switch_bridge_join(ds, info); break; case DSA_NOTIFIER_BRIDGE_LEAVE: err = dsa_switch_bridge_leave(ds, info); break; case DSA_NOTIFIER_FDB_ADD: err = dsa_switch_fdb_add(ds, info); break; case DSA_NOTIFIER_FDB_DEL: err = dsa_switch_fdb_del(ds, info); break; case DSA_NOTIFIER_HSR_JOIN: err = dsa_switch_hsr_join(ds, info); break; case DSA_NOTIFIER_HSR_LEAVE: err = dsa_switch_hsr_leave(ds, info); break; case DSA_NOTIFIER_LAG_CHANGE: err = dsa_switch_lag_change(ds, info); break; case DSA_NOTIFIER_LAG_JOIN: err = dsa_switch_lag_join(ds, info); break; case DSA_NOTIFIER_LAG_LEAVE: err = dsa_switch_lag_leave(ds, info); break; case DSA_NOTIFIER_MDB_ADD: err = dsa_switch_mdb_add(ds, info); break; case DSA_NOTIFIER_MDB_DEL: