| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Ido Schimmel | 10775 | 72.74% | 65 | 54.62% |
| Nogah Frankel | 1372 | 9.26% | 23 | 19.33% |
| Jiri Pirko | 977 | 6.60% | 6 | 5.04% |
| Petr Machata | 705 | 4.76% | 12 | 10.08% |
| Arkadi Sharshevsky | 377 | 2.55% | 4 | 3.36% |
| Yotam Gigi | 284 | 1.92% | 2 | 1.68% |
| Elad Raz | 116 | 0.78% | 4 | 3.36% |
| Florian Fainelli | 108 | 0.73% | 2 | 1.68% |
| Shalom Toledo | 99 | 0.67% | 1 | 0.84% |
| Total | 14813 | 119 |
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 /* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */ #include <linux/kernel.h> #include <linux/types.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/slab.h> #include <linux/device.h> #include <linux/skbuff.h> #include <linux/if_vlan.h> #include <linux/if_bridge.h> #include <linux/workqueue.h> #include <linux/jiffies.h> #include <linux/rtnetlink.h> #include <linux/netlink.h> #include <net/switchdev.h> #include <net/vxlan.h> #include "spectrum_span.h" #include "spectrum_switchdev.h" #include "spectrum.h" #include "core.h" #include "reg.h" struct mlxsw_sp_bridge_ops; struct mlxsw_sp_bridge { struct mlxsw_sp *mlxsw_sp; struct { struct delayed_work dw; #define MLXSW_SP_DEFAULT_LEARNING_INTERVAL 100 unsigned int interval; /* ms */ } fdb_notify; #define MLXSW_SP_MIN_AGEING_TIME 10 #define MLXSW_SP_MAX_AGEING_TIME 1000000 #define MLXSW_SP_DEFAULT_AGEING_TIME 300 u32 ageing_time; bool vlan_enabled_exists; struct list_head bridges_list; DECLARE_BITMAP(mids_bitmap, MLXSW_SP_MID_MAX); const struct mlxsw_sp_bridge_ops *bridge_8021q_ops; const struct mlxsw_sp_bridge_ops *bridge_8021d_ops; }; struct mlxsw_sp_bridge_device { struct net_device *dev; struct list_head list; struct list_head ports_list; struct list_head mids_list; u8 vlan_enabled:1, multicast_enabled:1, mrouter:1; const struct mlxsw_sp_bridge_ops *ops; }; struct mlxsw_sp_bridge_port { struct net_device *dev; struct mlxsw_sp_bridge_device *bridge_device; struct list_head list; struct list_head vlans_list; unsigned int ref_count; u8 stp_state; unsigned long flags; bool mrouter; bool lagged; union { u16 lag_id; u16 system_port; }; }; struct mlxsw_sp_bridge_vlan { struct list_head list; struct list_head port_vlan_list; u16 vid; }; struct mlxsw_sp_bridge_ops { int (*port_join)(struct mlxsw_sp_bridge_device *bridge_device, struct mlxsw_sp_bridge_port *bridge_port, struct mlxsw_sp_port *mlxsw_sp_port, struct netlink_ext_ack *extack); void (*port_leave)(struct mlxsw_sp_bridge_device *bridge_device, struct mlxsw_sp_bridge_port *bridge_port, struct mlxsw_sp_port *mlxsw_sp_port); int (*vxlan_join)(struct mlxsw_sp_bridge_device *bridge_device, const struct net_device *vxlan_dev, u16 vid, struct netlink_ext_ack *extack); struct mlxsw_sp_fid * (*fid_get)(struct mlxsw_sp_bridge_device *bridge_device, u16 vid, struct netlink_ext_ack *extack); struct mlxsw_sp_fid * (*fid_lookup)(struct mlxsw_sp_bridge_device *bridge_device, u16 vid); u16 (*fid_vid)(struct mlxsw_sp_bridge_device *bridge_device, const struct mlxsw_sp_fid *fid); }; static int mlxsw_sp_bridge_port_fdb_flush(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_bridge_port *bridge_port, u16 fid_index); static void mlxsw_sp_bridge_port_mdb_flush(struct mlxsw_sp_port *mlxsw_sp_port, struct mlxsw_sp_bridge_port *bridge_port); static void mlxsw_sp_bridge_mdb_mc_enable_sync(struct mlxsw_sp_port *mlxsw_sp_port, struct mlxsw_sp_bridge_device *bridge_device); static void mlxsw_sp_port_mrouter_update_mdb(struct mlxsw_sp_port *mlxsw_sp_port, struct mlxsw_sp_bridge_port *bridge_port, bool add); static struct mlxsw_sp_bridge_device * mlxsw_sp_bridge_device_find(const struct mlxsw_sp_bridge *bridge, const struct net_device *br_dev) { struct mlxsw_sp_bridge_device *bridge_device; list_for_each_entry(bridge_device, &bridge->bridges_list, list) if (bridge_device->dev == br_dev) return bridge_device; return NULL; } bool mlxsw_sp_bridge_device_is_offloaded(const struct mlxsw_sp *mlxsw_sp, const struct net_device *br_dev) { return !!mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); } static int mlxsw_sp_bridge_device_upper_rif_destroy(struct net_device *dev, void *data) { struct mlxsw_sp *mlxsw_sp = data; mlxsw_sp_rif_destroy_by_dev(mlxsw_sp, dev); return 0; } static void mlxsw_sp_bridge_device_rifs_destroy(struct mlxsw_sp *mlxsw_sp, struct net_device *dev) { mlxsw_sp_rif_destroy_by_dev(mlxsw_sp, dev); netdev_walk_all_upper_dev_rcu(dev, mlxsw_sp_bridge_device_upper_rif_destroy, mlxsw_sp); } static struct mlxsw_sp_bridge_device * mlxsw_sp_bridge_device_create(struct mlxsw_sp_bridge *bridge, struct net_device *br_dev) { struct device *dev = bridge->mlxsw_sp->bus_info->dev; struct mlxsw_sp_bridge_device *bridge_device; bool vlan_enabled = br_vlan_enabled(br_dev); if (vlan_enabled && bridge->vlan_enabled_exists) { dev_err(dev, "Only one VLAN-aware bridge is supported\n"); return ERR_PTR(-EINVAL); } bridge_device = kzalloc(sizeof(*bridge_device), GFP_KERNEL); if (!bridge_device) return ERR_PTR(-ENOMEM); bridge_device->dev = br_dev; bridge_device->vlan_enabled = vlan_enabled; bridge_device->multicast_enabled = br_multicast_enabled(br_dev); bridge_device->mrouter = br_multicast_router(br_dev); INIT_LIST_HEAD(&bridge_device->ports_list); if (vlan_enabled) { bridge->vlan_enabled_exists = true; bridge_device->ops = bridge->bridge_8021q_ops; } else { bridge_device->ops = bridge->bridge_8021d_ops; } INIT_LIST_HEAD(&bridge_device->mids_list); list_add(&bridge_device->list, &bridge->bridges_list); return bridge_device; } static void mlxsw_sp_bridge_device_destroy(struct mlxsw_sp_bridge *bridge, struct mlxsw_sp_bridge_device *bridge_device) { mlxsw_sp_bridge_device_rifs_destroy(bridge->mlxsw_sp, bridge_device->dev); list_del(&bridge_device->list); if (bridge_device->vlan_enabled) bridge->vlan_enabled_exists = false; WARN_ON(!list_empty(&bridge_device->ports_list)); WARN_ON(!list_empty(&bridge_device->mids_list)); kfree(bridge_device); } static struct mlxsw_sp_bridge_device * mlxsw_sp_bridge_device_get(struct mlxsw_sp_bridge *bridge, struct net_device *br_dev) { struct mlxsw_sp_bridge_device *bridge_device; bridge_device = mlxsw_sp_bridge_device_find(bridge, br_dev); if (bridge_device) return bridge_device; return mlxsw_sp_bridge_device_create(bridge, br_dev); } static void mlxsw_sp_bridge_device_put(struct mlxsw_sp_bridge *bridge, struct mlxsw_sp_bridge_device *bridge_device) { if (list_empty(&bridge_device->ports_list)) mlxsw_sp_bridge_device_destroy(bridge, bridge_device); } static struct mlxsw_sp_bridge_port * __mlxsw_sp_bridge_port_find(const struct mlxsw_sp_bridge_device *bridge_device, const struct net_device *brport_dev) { struct mlxsw_sp_bridge_port *bridge_port; list_for_each_entry(bridge_port, &bridge_device->ports_list, list) { if (bridge_port->dev == brport_dev) return bridge_port; } return NULL; } struct mlxsw_sp_bridge_port * mlxsw_sp_bridge_port_find(struct mlxsw_sp_bridge *bridge, struct net_device *brport_dev) { struct net_device *br_dev = netdev_master_upper_dev_get(brport_dev); struct mlxsw_sp_bridge_device *bridge_device; if (!br_dev) return NULL; bridge_device = mlxsw_sp_bridge_device_find(bridge, br_dev); if (!bridge_device) return NULL; return __mlxsw_sp_bridge_port_find(bridge_device, brport_dev); } static struct mlxsw_sp_bridge_port * mlxsw_sp_bridge_port_create(struct mlxsw_sp_bridge_device *bridge_device, struct net_device *brport_dev) { struct mlxsw_sp_bridge_port *bridge_port; struct mlxsw_sp_port *mlxsw_sp_port; bridge_port = kzalloc(sizeof(*bridge_port), GFP_KERNEL); if (!bridge_port) return NULL; mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(brport_dev); bridge_port->lagged = mlxsw_sp_port->lagged; if (bridge_port->lagged) bridge_port->lag_id = mlxsw_sp_port->lag_id; else bridge_port->system_port = mlxsw_sp_port->local_port; bridge_port->dev = brport_dev; bridge_port->bridge_device = bridge_device; bridge_port->stp_state = BR_STATE_DISABLED; bridge_port->flags = BR_LEARNING | BR_FLOOD | BR_LEARNING_SYNC | BR_MCAST_FLOOD; INIT_LIST_HEAD(&bridge_port->vlans_list); list_add(&bridge_port->list, &bridge_device->ports_list); bridge_port->ref_count = 1; return bridge_port; } static void mlxsw_sp_bridge_port_destroy(struct mlxsw_sp_bridge_port *bridge_port) { list_del(&bridge_port->list); WARN_ON(!list_empty(&bridge_port->vlans_list)); kfree(bridge_port); } static struct mlxsw_sp_bridge_port * mlxsw_sp_bridge_port_get(struct mlxsw_sp_bridge *bridge, struct net_device *brport_dev) { struct net_device *br_dev = netdev_master_upper_dev_get(brport_dev); struct mlxsw_sp_bridge_device *bridge_device; struct mlxsw_sp_bridge_port *bridge_port; int err; bridge_port = mlxsw_sp_bridge_port_find(bridge, brport_dev); if (bridge_port) { bridge_port->ref_count++; return bridge_port; } bridge_device = mlxsw_sp_bridge_device_get(bridge, br_dev); if (IS_ERR(bridge_device)) return ERR_CAST(bridge_device); bridge_port = mlxsw_sp_bridge_port_create(bridge_device, brport_dev); if (!bridge_port) { err = -ENOMEM; goto err_bridge_port_create; } return bridge_port; err_bridge_port_create: mlxsw_sp_bridge_device_put(bridge, bridge_device); return ERR_PTR(err); } static void mlxsw_sp_bridge_port_put(struct mlxsw_sp_bridge *bridge, struct mlxsw_sp_bridge_port *bridge_port) { struct mlxsw_sp_bridge_device *bridge_device; if (--bridge_port->ref_count != 0) return; bridge_device = bridge_port->bridge_device; mlxsw_sp_bridge_port_destroy(bridge_port); mlxsw_sp_bridge_device_put(bridge, bridge_device); } static struct mlxsw_sp_port_vlan * mlxsw_sp_port_vlan_find_by_bridge(struct mlxsw_sp_port *mlxsw_sp_port, const struct mlxsw_sp_bridge_device * bridge_device, u16 vid) { struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list, list) { if (!mlxsw_sp_port_vlan->bridge_port) continue; if (mlxsw_sp_port_vlan->bridge_port->bridge_device != bridge_device) continue; if (bridge_device->vlan_enabled && mlxsw_sp_port_vlan->vid != vid) continue; return mlxsw_sp_port_vlan; } return NULL; } static struct mlxsw_sp_port_vlan* mlxsw_sp_port_vlan_find_by_fid(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid_index) { struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list, list) { struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid; if (fid && mlxsw_sp_fid_index(fid) == fid_index) return mlxsw_sp_port_vlan; } return NULL; } static struct mlxsw_sp_bridge_vlan * mlxsw_sp_bridge_vlan_find(const struct mlxsw_sp_bridge_port *bridge_port, u16 vid) { struct mlxsw_sp_bridge_vlan *bridge_vlan; list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) { if (bridge_vlan->vid == vid) return bridge_vlan; } return NULL; } static struct mlxsw_sp_bridge_vlan * mlxsw_sp_bridge_vlan_create(struct mlxsw_sp_bridge_port *bridge_port, u16 vid) { struct mlxsw_sp_bridge_vlan *bridge_vlan; bridge_vlan = kzalloc(sizeof(*bridge_vlan), GFP_KERNEL); if (!bridge_vlan) return NULL; INIT_LIST_HEAD(&bridge_vlan->port_vlan_list); bridge_vlan->vid = vid; list_add(&bridge_vlan->list, &bridge_port->vlans_list); return bridge_vlan; } static void mlxsw_sp_bridge_vlan_destroy(struct mlxsw_sp_bridge_vlan *bridge_vlan) { list_del(&bridge_vlan->list); WARN_ON(!list_empty(&bridge_vlan->port_vlan_list)); kfree(bridge_vlan); } static struct mlxsw_sp_bridge_vlan * mlxsw_sp_bridge_vlan_get(struct mlxsw_sp_bridge_port *bridge_port, u16 vid) { struct mlxsw_sp_bridge_vlan *bridge_vlan; bridge_vlan = mlxsw_sp_bridge_vlan_find(bridge_port, vid); if (bridge_vlan) return bridge_vlan; return mlxsw_sp_bridge_vlan_create(bridge_port, vid); } static void mlxsw_sp_bridge_vlan_put(struct mlxsw_sp_bridge_vlan *bridge_vlan) { if (list_empty(&bridge_vlan->port_vlan_list)) mlxsw_sp_bridge_vlan_destroy(bridge_vlan); } static int mlxsw_sp_port_bridge_vlan_stp_set(struct mlxsw_sp_port *mlxsw_sp_port, struct mlxsw_sp_bridge_vlan *bridge_vlan, u8 state) { struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; list_for_each_entry(mlxsw_sp_port_vlan, &bridge_vlan->port_vlan_list, bridge_vlan_node) { if (mlxsw_sp_port_vlan->mlxsw_sp_port != mlxsw_sp_port) continue; return mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, bridge_vlan->vid, state); } return 0; } static int mlxsw_sp_port_attr_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port, struct switchdev_trans *trans, struct net_device *orig_dev, u8 state) { struct mlxsw_sp_bridge_port *bridge_port; struct mlxsw_sp_bridge_vlan *bridge_vlan; int err; if (switchdev_trans_ph_prepare(trans)) return 0; /* It's possible we failed to enslave the port, yet this * operation is executed due to it being deferred. */ bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp_port->mlxsw_sp->bridge, orig_dev); if (!bridge_port) return 0; list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) { err = mlxsw_sp_port_bridge_vlan_stp_set(mlxsw_sp_port, bridge_vlan, state); if (err) goto err_port_bridge_vlan_stp_set; } bridge_port->stp_state = state; return 0; err_port_bridge_vlan_stp_set: list_for_each_entry_continue_reverse(bridge_vlan, &bridge_port->vlans_list, list) mlxsw_sp_port_bridge_vlan_stp_set(mlxsw_sp_port, bridge_vlan, bridge_port->stp_state); return err; } static int mlxsw_sp_port_bridge_vlan_flood_set(struct mlxsw_sp_port *mlxsw_sp_port, struct mlxsw_sp_bridge_vlan *bridge_vlan, enum mlxsw_sp_flood_type packet_type, bool member) { struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; list_for_each_entry(mlxsw_sp_port_vlan, &bridge_vlan->port_vlan_list, bridge_vlan_node) { if (mlxsw_sp_port_vlan->mlxsw_sp_port != mlxsw_sp_port) continue; return mlxsw_sp_fid_flood_set(mlxsw_sp_port_vlan->fid, packet_type, mlxsw_sp_port->local_port, member); } return 0; } static int mlxsw_sp_bridge_port_flood_table_set(struct mlxsw_sp_port *mlxsw_sp_port, struct mlxsw_sp_bridge_port *bridge_port, enum mlxsw_sp_flood_type packet_type, bool member) { struct mlxsw_sp_bridge_vlan *bridge_vlan; int err; list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) { err = mlxsw_sp_port_bridge_vlan_flood_set(mlxsw_sp_port, bridge_vlan, packet_type, member); if (err) goto err_port_bridge_vlan_flood_set; } return 0; err_port_bridge_vlan_flood_set: list_for_each_entry_continue_reverse(bridge_vlan, &bridge_port->vlans_list, list) mlxsw_sp_port_bridge_vlan_flood_set(mlxsw_sp_port, bridge_vlan, packet_type, !member); return err; } static int mlxsw_sp_port_bridge_vlan_learning_set(struct mlxsw_sp_port *mlxsw_sp_port, struct mlxsw_sp_bridge_vlan *bridge_vlan, bool set) { struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; u16 vid = bridge_vlan->vid; list_for_each_entry(mlxsw_sp_port_vlan, &bridge_vlan->port_vlan_list, bridge_vlan_node) { if (mlxsw_sp_port_vlan->mlxsw_sp_port != mlxsw_sp_port) continue; return mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, set); } return 0; } static int mlxsw_sp_bridge_port_learning_set(struct mlxsw_sp_port *mlxsw_sp_port, struct mlxsw_sp_bridge_port *bridge_port, bool set) { struct mlxsw_sp_bridge_vlan *bridge_vlan; int err; list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) { err = mlxsw_sp_port_bridge_vlan_learning_set(mlxsw_sp_port, bridge_vlan, set); if (err) goto err_port_bridge_vlan_learning_set; } return 0; err_port_bridge_vlan_learning_set: list_for_each_entry_continue_reverse(bridge_vlan, &bridge_port->vlans_list, list) mlxsw_sp_port_bridge_vlan_learning_set(mlxsw_sp_port, bridge_vlan, !set); return err; } static int mlxsw_sp_port_attr_br_pre_flags_set(struct mlxsw_sp_port *mlxsw_sp_port, struct switchdev_trans *trans, unsigned long brport_flags) { if (brport_flags & ~(BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD)) return -EINVAL; return 0; } static int mlxsw_sp_port_attr_br_flags_set(struct mlxsw_sp_port *mlxsw_sp_port, struct switchdev_trans *trans, struct net_device *orig_dev, unsigned long brport_flags) { struct mlxsw_sp_bridge_port *bridge_port; int err; if (switchdev_trans_ph_prepare(trans)) return 0; bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp_port->mlxsw_sp->bridge, orig_dev); if (!bridge_port) return 0; err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port, bridge_port, MLXSW_SP_FLOOD_TYPE_UC, brport_flags & BR_FLOOD); if (err) return err; err = mlxsw_sp_bridge_port_learning_set(mlxsw_sp_port, bridge_port, brport_flags & BR_LEARNING); if (err) return err; if (bridge_port->bridge_device->multicast_enabled) goto out; err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port, bridge_port, MLXSW_SP_FLOOD_TYPE_MC, brport_flags & BR_MCAST_FLOOD); if (err) return err; out: memcpy(&bridge_port->flags, &brport_flags, sizeof(brport_flags)); return 0; } static int mlxsw_sp_ageing_set(struct mlxsw_sp *mlxsw_sp, u32 ageing_time) { char sfdat_pl[MLXSW_REG_SFDAT_LEN]; int err; mlxsw_reg_sfdat_pack(sfdat_pl, ageing_time); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdat), sfdat_pl); if (err) return err; mlxsw_sp->bridge->ageing_time = ageing_time; return 0; } static int mlxsw_sp_port_attr_br_ageing_set(struct mlxsw_sp_port *mlxsw_sp_port, struct switchdev_trans *trans, unsigned long ageing_clock_t) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t); u32 ageing_time = jiffies_to_msecs(ageing_jiffies) / 1000; if (switchdev_trans_ph_prepare(trans)) { if (ageing_time < MLXSW_SP_MIN_AGEING_TIME || ageing_time > MLXSW_SP_MAX_AGEING_TIME) return -ERANGE; else return 0; } return mlxsw_sp_ageing_set(mlxsw_sp, ageing_time); } static int mlxsw_sp_port_attr_br_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, struct switchdev_trans *trans, struct net_device *orig_dev, bool vlan_enabled) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; struct mlxsw_sp_bridge_device *bridge_device; if (!switchdev_trans_ph_prepare(trans)) return 0; bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, orig_dev); if (WARN_ON(!bridge_device)) return -EINVAL; if (bridge_device->vlan_enabled == vlan_enabled) return 0; netdev_err(bridge_device->dev, "VLAN filtering can't be changed for existing bridge\n"); return -EINVAL; } static int mlxsw_sp_port_attr_mrouter_set(struct mlxsw_sp_port *mlxsw_sp_port, struct switchdev_trans *trans, struct net_device *orig_dev, bool is_port_mrouter) { struct mlxsw_sp_bridge_port *bridge_port; int err; if (switchdev_trans_ph_prepare(trans)) return 0; bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp_port->mlxsw_sp->bridge, orig_dev); if (!bridge_port) return 0; if (!bridge_port->bridge_device->multicast_enabled) goto out; err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port, bridge_port, MLXSW_SP_FLOOD_TYPE_MC, is_port_mrouter); if (err) return err; mlxsw_sp_port_mrouter_update_mdb(mlxsw_sp_port, bridge_port, is_port_mrouter); out: bridge_port->mrouter = is_port_mrouter; return 0; } static bool mlxsw_sp_mc_flood(const struct mlxsw_sp_bridge_port *bridge_port) { const struct mlxsw_sp_bridge_device *bridge_device; bridge_device = bridge_port->bridge_device; return bridge_device->multicast_enabled ? bridge_port->mrouter : bridge_port->flags & BR_MCAST_FLOOD; } static int mlxsw_sp_port_mc_disabled_set(struct mlxsw_sp_port *mlxsw_sp_port, struct switchdev_trans *trans, struct net_device *orig_dev, bool mc_disabled) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; struct mlxsw_sp_bridge_device *bridge_device; struct mlxsw_sp_bridge_port *bridge_port; int err; if (switchdev_trans_ph_prepare(trans)) return 0; /* It's possible we failed to enslave the port, yet this * operation is executed due to it being deferred. */ bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, orig_dev); if (!bridge_device) return 0; if (bridge_device->multicast_enabled != !mc_disabled) { bridge_device->multicast_enabled = !mc_disabled; mlxsw_sp_bridge_mdb_mc_enable_sync(mlxsw_sp_port, bridge_device); } list_for_each_entry(bridge_port, &bridge_device->ports_list, list) { enum mlxsw_sp_flood_type packet_type = MLXSW_SP_FLOOD_TYPE_MC; bool member = mlxsw_sp_mc_flood(bridge_port); err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port, bridge_port, packet_type, member); if (err) return err; } bridge_device->multicast_enabled = !mc_disabled; return 0; } static int mlxsw_sp_smid_router_port_set(struct mlxsw_sp *mlxsw_sp, u16 mid_idx, bool add) { char *smid_pl; int err; smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL); if (!smid_pl) return -ENOMEM; mlxsw_reg_smid_pack(smid_pl, mid_idx, mlxsw_sp_router_port(mlxsw_sp), add); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl); kfree(smid_pl); return err; } static void mlxsw_sp_bridge_mrouter_update_mdb(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_bridge_device *bridge_device, bool add) { struct mlxsw_sp_mid *mid; list_for_each_entry(mid, &bridge_device->mids_list, list) mlxsw_sp_smid_router_port_set(mlxsw_sp, mid->mid, add); } static int mlxsw_sp_port_attr_br_mrouter_set(struct mlxsw_sp_port *mlxsw_sp_port, struct switchdev_trans *trans, struct net_device *orig_dev, bool is_mrouter) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; struct mlxsw_sp_bridge_device *bridge_device; if (switchdev_trans_ph_prepare(trans)) return 0; /* It's possible we failed to enslave the port, yet this * operation is executed due to it being deferred. */ bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, orig_dev); if (!bridge_device) return 0; if (bridge_device->mrouter != is_mrouter) mlxsw_sp_bridge_mrouter_update_mdb(mlxsw_sp, bridge_device, is_mrouter); bridge_device->mrouter = is_mrouter; return 0; } static int mlxsw_sp_port_attr_set(struct net_device *dev, const struct switchdev_attr *attr, struct switchdev_trans *trans) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); int err; switch (attr->id) { case SWITCHDEV_ATTR_ID_PORT_STP_STATE: err = mlxsw_sp_port_attr_stp_state_set(mlxsw_sp_port, trans, attr->orig_dev, attr->u.stp_state); break; case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS: err = mlxsw_sp_port_attr_br_pre_flags_set(mlxsw_sp_port, trans, attr->u.brport_flags); break; case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: err = mlxsw_sp_port_attr_br_flags_set(mlxsw_sp_port, trans, attr->orig_dev, attr->u.brport_flags); break; case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: err = mlxsw_sp_port_attr_br_ageing_set(mlxsw_sp_port, trans, attr->u.ageing_time); break; case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: err = mlxsw_sp_port_attr_br_vlan_set(mlxsw_sp_port, trans, attr->orig_dev, attr->u.vlan_filtering); break; case SWITCHDEV_ATTR_ID_PORT_MROUTER: err = mlxsw_sp_port_attr_mrouter_set(mlxsw_sp_port, trans, attr->orig_dev, attr->u.mrouter); break; case SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED: err = mlxsw_sp_port_mc_disabled_set(mlxsw_sp_port, trans, attr->orig_dev, attr->u.mc_disabled); break; case SWITCHDEV_ATTR_ID_BRIDGE_MROUTER: err = mlxsw_sp_port_attr_br_mrouter_set(mlxsw_sp_port, trans, attr->orig_dev, attr->u.mrouter); break; default: err = -EOPNOTSUPP; break; } if (switchdev_trans_ph_commit(trans)) mlxsw_sp_span_respin(mlxsw_sp_port->mlxsw_sp); return err; } static int mlxsw_sp_port_vlan_fid_join(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan, struct mlxsw_sp_bridge_port *bridge_port, struct netlink_ext_ack *extack) { struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port; struct mlxsw_sp_bridge_device *bridge_device; u8 local_port = mlxsw_sp_port->local_port; u16 vid = mlxsw_sp_port_vlan->vid; struct mlxsw_sp_fid *fid; int err; bridge_device = bridge_port->bridge_device; fid = bridge_device->ops->fid_get(bridge_device, vid, extack); if (IS_ERR(fid)) return PTR_ERR(fid); err = mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_UC, local_port, bridge_port->flags & BR_FLOOD); if (err) goto err_fid_uc_flood_set; err = mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_MC, local_port, mlxsw_sp_mc_flood(bridge_port)); if (err) goto err_fid_mc_flood_set; err = mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_BC, local_port, true); if (err) goto err_fid_bc_flood_set; err = mlxsw_sp_fid_port_vid_map(fid, mlxsw_sp_port, vid); if (err) goto err_fid_port_vid_map; mlxsw_sp_port_vlan->fid = fid; return 0; err_fid_port_vid_map: mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_BC, local_port, false); err_fid_bc_flood_set: mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_MC, local_port, false); err_fid_mc_flood_set: mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_UC, local_port, false); err_fid_uc_flood_set: mlxsw_sp_fid_put(fid); return err; } static void mlxsw_sp_port_vlan_fid_leave(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan) { struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port; struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid; u8 local_port = mlxsw_sp_port->local_port; u16 vid = mlxsw_sp_port_vlan->vid; mlxsw_sp_port_vlan->fid = NULL; mlxsw_sp_fid_port_vid_unmap(fid, mlxsw_sp_port, vid); mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_BC, local_port, false); mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_MC, local_port, false); mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_UC, local_port, false); mlxsw_sp_fid_put(fid); } static u16 mlxsw_sp_port_pvid_determine(const struct mlxsw_sp_port *mlxsw_sp_port, u16 vid, bool is_pvid) { if (is_pvid) return vid; else if (mlxsw_sp_port->pvid == vid) return 0; /* Dis-allow untagged packets */ else return mlxsw_sp_port->pvid; } static int mlxsw_sp_port_vlan_bridge_join(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan, struct mlxsw_sp_bridge_port *bridge_port, struct netlink_ext_ack *extack) { struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port; struct mlxsw_sp_bridge_vlan *bridge_vlan; u16 vid = mlxsw_sp_port_vlan->vid; int err; /* No need to continue if only VLAN flags were changed */ if (mlxsw_sp_port_vlan->bridge_port) return 0; err = mlxsw_sp_port_vlan_fid_join(mlxsw_sp_port_vlan, bridge_port, extack); if (err) return err; err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, bridge_port->flags & BR_LEARNING); if (err) goto err_port_vid_learning_set; err = mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, vid, bridge_port->stp_state); if (err) goto err_port_vid_stp_set; bridge_vlan = mlxsw_sp_bridge_vlan_get(bridge_port, vid); if (!bridge_vlan) { err = -ENOMEM; goto err_bridge_vlan_get; } list_add(&mlxsw_sp_port_vlan->bridge_vlan_node, &bridge_vlan->port_vlan_list); mlxsw_sp_bridge_port_get(mlxsw_sp_port->mlxsw_sp->bridge, bridge_port->dev); mlxsw_sp_port_vlan->bridge_port = bridge_port; return 0; err_bridge_vlan_get: mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, vid, BR_STATE_DISABLED); err_port_vid_stp_set: mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, false); err_port_vid_learning_set: mlxsw_sp_port_vlan_fid_leave(mlxsw_sp_port_vlan); return err; } void mlxsw_sp_port_vlan_bridge_leave(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan) { struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port; struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid; struct mlxsw_sp_bridge_vlan *bridge_vlan; struct mlxsw_sp_bridge_port *bridge_port; u16 vid = mlxsw_sp_port_vlan->vid; bool last_port, last_vlan; if (WARN_ON(mlxsw_sp_fid_type(fid) != MLXSW_SP_FID_TYPE_8021Q && mlxsw_sp_fid_type(fid) != MLXSW_SP_FID_TYPE_8021D)) return; bridge_port = mlxsw_sp_port_vlan->bridge_port; last_vlan = list_is_singular(&bridge_port->vlans_list); bridge_vlan = mlxsw_sp_bridge_vlan_find(bridge_port, vid); last_port = list_is_singular(&bridge_vlan->port_vlan_list); list_del(&mlxsw_sp_port_vlan->bridge_vlan_node); mlxsw_sp_bridge_vlan_put(bridge_vlan); mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, vid, BR_STATE_DISABLED); mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, false); if (last_port) mlxsw_sp_bridge_port_fdb_flush(mlxsw_sp_port->mlxsw_sp, bridge_port, mlxsw_sp_fid_index(fid)); if (last_vlan) mlxsw_sp_bridge_port_mdb_flush(mlxsw_sp_port, bridge_port); mlxsw_sp_port_vlan_fid_leave(mlxsw_sp_port_vlan); mlxsw_sp_bridge_port_put(mlxsw_sp_port->mlxsw_sp->bridge, bridge_port); mlxsw_sp_port_vlan->bridge_port = NULL; } static int mlxsw_sp_bridge_port_vlan_add(struct mlxsw_sp_port *mlxsw_sp_port, struct mlxsw_sp_bridge_port *bridge_port, u16 vid, bool is_untagged, bool is_pvid, struct netlink_ext_ack *extack) { u16 pvid = mlxsw_sp_port_pvid_determine(mlxsw_sp_port, vid, is_pvid); struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; u16 old_pvid = mlxsw_sp_port->pvid; int err; /* The only valid scenario in which a port-vlan already exists, is if * the VLAN flags were changed and the port-vlan is associated with the * correct bridge port */ mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid); if (mlxsw_sp_port_vlan && mlxsw_sp_port_vlan->bridge_port != bridge_port) return -EEXIST; if (!mlxsw_sp_port_vlan) { mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_create(mlxsw_sp_port, vid); if (IS_ERR(mlxsw_sp_port_vlan)) return PTR_ERR(mlxsw_sp_port_vlan); } err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, true, is_untagged); if (err) goto err_port_vlan_set; err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, pvid); if (err) goto err_port_pvid_set; err = mlxsw_sp_port_vlan_bridge_join(mlxsw_sp_port_vlan, bridge_port, extack); if (err) goto err_port_vlan_bridge_join; return 0; err_port_vlan_bridge_join: mlxsw_sp_port_pvid_set(mlxsw_sp_port, old_pvid); err_port_pvid_set: mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false); err_port_vlan_set: mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan); return err; } static int mlxsw_sp_br_ban_rif_pvid_change(struct mlxsw_sp *mlxsw_sp, const struct net_device *br_dev, const struct switchdev_obj_port_vlan *vlan) { struct mlxsw_sp_rif *rif; struct mlxsw_sp_fid *fid; u16 pvid; u16 vid; rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, br_dev); if (!rif) return 0; fid = mlxsw_sp_rif_fid(rif); pvid = mlxsw_sp_fid_8021q_vid(fid); for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) { if (vlan->flags & BRIDGE_VLAN_INFO_PVID) { if (vid != pvid) { netdev_err(br_dev, "Can't change PVID, it's used by router interface\n"); return -EBUSY; } } else { if (vid == pvid) { netdev_err(br_dev, "Can't remove PVID, it's used by router interface\n"); return -EBUSY; } } } return 0; } static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port, const struct switchdev_obj_port_vlan *vlan, struct switchdev_trans *trans, struct netlink_ext_ack *extack) { bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID; struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; struct net_device *orig_dev = vlan->obj.orig_dev; struct mlxsw_sp_bridge_port *bridge_port; u16 vid; if (netif_is_bridge_master(orig_dev)) { int err = 0; if ((vlan->flags & BRIDGE_VLAN_INFO_BRENTRY) && br_vlan_enabled(orig_dev) && switchdev_trans_ph_prepare(trans)) err = mlxsw_sp_br_ban_rif_pvid_change(mlxsw_sp, orig_dev, vlan); if (!err) err = -EOPNOTSUPP; return err; } if (switchdev_trans_ph_commit(trans)) return 0; bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev); if (WARN_ON(!bridge_port)) return -EINVAL; if (!bridge_port->bridge_device->vlan_enabled) return 0; for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) { int err; err = mlxsw_sp_bridge_port_vlan_add(mlxsw_sp_port, bridge_port, vid, flag_untagged, flag_pvid, extack); if (err) return err; } return 0; } static enum mlxsw_reg_sfdf_flush_type mlxsw_sp_fdb_flush_type(bool lagged) { return lagged ? MLXSW_REG_SFDF_FLUSH_PER_LAG_AND_FID : MLXSW_REG_SFDF_FLUSH_PER_PORT_AND_FID; } static int mlxsw_sp_bridge_port_fdb_flush(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_bridge_port *bridge_port, u16 fid_index) { bool lagged = bridge_port->lagged; char sfdf_pl[MLXSW_REG_SFDF_LEN]; u16 system_port; system_port = lagged ? bridge_port->lag_id : bridge_port->system_port; mlxsw_reg_sfdf_pack(sfdf_pl, mlxsw_sp_fdb_flush_type(lagged)); mlxsw_reg_sfdf_fid_set(sfdf_pl, fid_index); mlxsw_reg_sfdf_port_fid_system_port_set(sfdf_pl, system_port); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl); } static enum mlxsw_reg_sfd_rec_policy mlxsw_sp_sfd_rec_policy(bool dynamic) { return dynamic ? MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_INGRESS : MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_MLAG; } static enum mlxsw_reg_sfd_op mlxsw_sp_sfd_op(bool adding) { return adding ? MLXSW_REG_SFD_OP_WRITE_EDIT : MLXSW_REG_SFD_OP_WRITE_REMOVE; } static int mlxsw_sp_port_fdb_tunnel_uc_op(struct mlxsw_sp *mlxsw_sp, const char *mac, u16 fid, enum mlxsw_sp_l3proto proto, const union mlxsw_sp_l3addr *addr, bool adding, bool dynamic) { enum mlxsw_reg_sfd_uc_tunnel_protocol sfd_proto; char *sfd_pl; u8 num_rec; u32 uip; int err; switch (proto) { case MLXSW_SP_L3_PROTO_IPV4: uip = be32_to_cpu(addr->addr4); sfd_proto = MLXSW_REG_SFD_UC_TUNNEL_PROTOCOL_IPV4; break; case MLXSW_SP_L3_PROTO_IPV6: /* fall through */ default: WARN_ON(1); return -EOPNOTSUPP; } sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); if (!sfd_pl) return -ENOMEM; mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0); mlxsw_reg_sfd_uc_tunnel_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic), mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP, uip, sfd_proto); num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); if (err) goto out; if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl)) err = -EBUSY; out: kfree(sfd_pl); return err; } static int __mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port, const char *mac, u16 fid, bool adding, enum mlxsw_reg_sfd_rec_action action, enum mlxsw_reg_sfd_rec_policy policy) { char *sfd_pl; u8 num_rec; int err; sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); if (!sfd_pl) return -ENOMEM; mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0); mlxsw_reg_sfd_uc_pack(sfd_pl, 0, policy, mac, fid, action, local_port); num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); if (err) goto out; if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl)) err = -EBUSY; out: kfree(sfd_pl); return err; } static int mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port, const char *mac, u16 fid, bool adding, bool dynamic) { return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid, adding, MLXSW_REG_SFD_REC_ACTION_NOP, mlxsw_sp_sfd_rec_policy(dynamic)); } int mlxsw_sp_rif_fdb_op(struct mlxsw_sp *mlxsw_sp, const char *mac, u16 fid, bool adding) { return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, 0, mac, fid, adding, MLXSW_REG_SFD_REC_ACTION_FORWARD_IP_ROUTER, MLXSW_REG_SFD_REC_POLICY_STATIC_ENTRY); } static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id, const char *mac, u16 fid, u16 lag_vid, bool adding, bool dynamic) { char *sfd_pl; u8 num_rec; int err; sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); if (!sfd_pl) return -ENOMEM; mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0); mlxsw_reg_sfd_uc_lag_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic), mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP, lag_vid, lag_id); num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); if (err) goto out; if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl)) err = -EBUSY; out: kfree(sfd_pl); return err; } static int mlxsw_sp_port_fdb_set(struct mlxsw_sp_port *mlxsw_sp_port, struct switchdev_notifier_fdb_info *fdb_info, bool adding) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; struct net_device *orig_dev = fdb_info->info.dev; struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; struct mlxsw_sp_bridge_device *bridge_device; struct mlxsw_sp_bridge_port *bridge_port; u16 fid_index, vid; bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev); if (!bridge_port) return -EINVAL; bridge_device = bridge_port->bridge_device; mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port, bridge_device, fdb_info->vid); if (!mlxsw_sp_port_vlan) return 0; fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid); vid = mlxsw_sp_port_vlan->vid; if (!bridge_port->lagged) return mlxsw_sp_port_fdb_uc_op(mlxsw_sp, bridge_port->system_port, fdb_info->addr, fid_index, adding, false); else return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, bridge_port->lag_id, fdb_info->addr, fid_index, vid, adding, false); } static int mlxsw_sp_port_mdb_op(struct mlxsw_sp *mlxsw_sp, const char *addr, u16 fid, u16 mid_idx, bool adding) { char *sfd_pl; u8 num_rec; int err; sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); if (!sfd_pl) return -ENOMEM; mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0); mlxsw_reg_sfd_mc_pack(sfd_pl, 0, addr, fid, MLXSW_REG_SFD_REC_ACTION_NOP, mid_idx); num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); if (err) goto out; if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl)) err = -EBUSY; out: kfree(sfd_pl); return err; } static int mlxsw_sp_port_smid_full_entry(struct mlxsw_sp *mlxsw_sp, u16 mid_idx, long *ports_bitmap, bool set_router_port) { char *smid_pl; int err, i; smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL); if (!smid_pl) return -ENOMEM; mlxsw_reg_smid_pack(smid_pl, mid_idx, 0, false); for (i = 1; i < mlxsw_core_max_ports(mlxsw_sp->core); i++) { if (mlxsw_sp->ports[i]) mlxsw_reg_smid_port_mask_set(smid_pl, i, 1); } mlxsw_reg_smid_port_mask_set(smid_pl, mlxsw_sp_router_port(mlxsw_sp), 1); for_each_set_bit(i, ports_bitmap, mlxsw_core_max_ports(mlxsw_sp->core)) mlxsw_reg_smid_port_set(smid_pl, i, 1); mlxsw_reg_smid_port_set(smid_pl, mlxsw_sp_router_port(mlxsw_sp), set_router_port); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl); kfree(smid_pl); return err; } static int mlxsw_sp_port_smid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mid_idx, bool add) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char *smid_pl; int err; smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL); if (!smid_pl) return -ENOMEM; mlxsw_reg_smid_pack(smid_pl, mid_idx, mlxsw_sp_port->local_port, add); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl); kfree(smid_pl); return err; } static struct mlxsw_sp_mid *__mlxsw_sp_mc_get(struct mlxsw_sp_bridge_device *bridge_device, const unsigned char *addr, u16 fid) { struct mlxsw_sp_mid *mid; list_for_each_entry(mid, &bridge_device->mids_list, list) { if (ether_addr_equal(mid->addr, addr) && mid->fid == fid) return mid; } return NULL; } static void mlxsw_sp_bridge_port_get_ports_bitmap(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_bridge_port *bridge_port, unsigned long *ports_bitmap) { struct mlxsw_sp_port *mlxsw_sp_port; u64 max_lag_members, i; int lag_id; if (!bridge_port->lagged) { set_bit(bridge_port->system_port, ports_bitmap); } else { max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_LAG_MEMBERS); lag_id = bridge_port->lag_id; for (i = 0; i < max_lag_members; i++) { mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i); if (mlxsw_sp_port) set_bit(mlxsw_sp_port->local_port, ports_bitmap); } } } static void mlxsw_sp_mc_get_mrouters_bitmap(unsigned long *flood_bitmap, struct mlxsw_sp_bridge_device *bridge_device, struct mlxsw_sp *mlxsw_sp) { struct mlxsw_sp_bridge_port *bridge_port; list_for_each_entry(bridge_port, &bridge_device->ports_list, list) { if (bridge_port->mrouter) { mlxsw_sp_bridge_port_get_ports_bitmap(mlxsw_sp, bridge_port, flood_bitmap); } } } static bool mlxsw_sp_mc_write_mdb_entry(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_mid *mid, struct mlxsw_sp_bridge_device *bridge_device) { long *flood_bitmap; int num_of_ports; int alloc_size; u16 mid_idx; int err; mid_idx = find_first_zero_bit(mlxsw_sp->bridge->mids_bitmap, MLXSW_SP_MID_MAX); if (mid_idx == MLXSW_SP_MID_MAX) return false; num_of_ports = mlxsw_core_max_ports(mlxsw_sp->core); alloc_size = sizeof(long) * BITS_TO_LONGS(num_of_ports); flood_bitmap = kzalloc(alloc_size, GFP_KERNEL); if (!flood_bitmap) return false; bitmap_copy(flood_bitmap, mid->ports_in_mid, num_of_ports); mlxsw_sp_mc_get_mrouters_bitmap(flood_bitmap, bridge_device, mlxsw_sp); mid->mid = mid_idx; err = mlxsw_sp_port_smid_full_entry(mlxsw_sp, mid_idx, flood_bitmap, bridge_device->mrouter); kfree(flood_bitmap); if (err) return false; err = mlxsw_sp_port_mdb_op(mlxsw_sp, mid->addr, mid->fid, mid_idx, true); if (err) return false; set_bit(mid_idx, mlxsw_sp->bridge->mids_bitmap); mid->in_hw = true; return true; } static int mlxsw_sp_mc_remove_mdb_entry(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_mid *mid) { if (!mid->in_hw) return 0; clear_bit(mid->mid, mlxsw_sp->bridge->mids_bitmap); mid->in_hw = false; return mlxsw_sp_port_mdb_op(mlxsw_sp, mid->addr, mid->fid, mid->mid, false); } static struct mlxsw_sp_mid *__mlxsw_sp_mc_alloc(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_bridge_device *bridge_device, const unsigned char *addr, u16 fid) { struct mlxsw_sp_mid *mid; size_t alloc_size; mid = kzalloc(sizeof(*mid), GFP_KERNEL); if (!mid) return NULL; alloc_size = sizeof(unsigned long) * BITS_TO_LONGS(mlxsw_core_max_ports(mlxsw_sp->core)); mid->ports_in_mid = kzalloc(alloc_size, GFP_KERNEL); if (!mid->ports_in_mid) goto err_ports_in_mid_alloc; ether_addr_copy(mid->addr, addr); mid->fid = fid; mid->in_hw = false; if (!bridge_device->multicast_enabled) goto out; if (!mlxsw_sp_mc_write_mdb_entry(mlxsw_sp, mid, bridge_device)) goto err_write_mdb_entry; out: list_add_tail(&mid->list, &bridge_device->mids_list); return mid; err_write_mdb_entry: kfree(mid->ports_in_mid); err_ports_in_mid_alloc: kfree(mid); return NULL; } static int mlxsw_sp_port_remove_from_mid(struct mlxsw_sp_port *mlxsw_sp_port, struct mlxsw_sp_mid *mid) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; int err = 0; clear_bit(mlxsw_sp_port->local_port, mid->ports_in_mid); if (bitmap_empty(mid->ports_in_mid, mlxsw_core_max_ports(mlxsw_sp->core))) { err = mlxsw_sp_mc_remove_mdb_entry(mlxsw_sp, mid); list_del(&mid->list); kfree(mid->ports_in_mid); kfree(mid); } return err; } static int mlxsw_sp_port_mdb_add(struct mlxsw_sp_port *mlxsw_sp_port, const struct switchdev_obj_port_mdb *mdb, struct switchdev_trans *trans) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; struct net_device *orig_dev = mdb->obj.orig_dev; struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; struct net_device *dev = mlxsw_sp_port->dev; struct mlxsw_sp_bridge_device *bridge_device; struct mlxsw_sp_bridge_port *bridge_port; struct mlxsw_sp_mid *mid; u16 fid_index; int err = 0; if (switchdev_trans_ph_commit(trans)) return 0; bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev); if (!bridge_port) return 0; bridge_device = bridge_port->bridge_device; mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port, bridge_device, mdb->vid); if (!mlxsw_sp_port_vlan) return 0; fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid); mid = __mlxsw_sp_mc_get(bridge_device, mdb->addr, fid_index); if (!mid) { mid = __mlxsw_sp_mc_alloc(mlxsw_sp, bridge_device, mdb->addr, fid_index); if (!mid) { netdev_err(dev, "Unable to allocate MC group\n"); return -ENOMEM; } } set_bit(mlxsw_sp_port->local_port, mid->ports_in_mid); if (!bridge_device->multicast_enabled) return 0; if (bridge_port->mrouter) return 0; err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, true); if (err) { netdev_err(dev, "Unable to set SMID\n"); goto err_out; } return 0; err_out: mlxsw_sp_port_remove_from_mid(mlxsw_sp_port, mid); return err; } static void mlxsw_sp_bridge_mdb_mc_enable_sync(struct mlxsw_sp_port *mlxsw_sp_port, struct mlxsw_sp_bridge_device *bridge_device) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; struct mlxsw_sp_mid *mid; bool mc_enabled; mc_enabled = bridge_device->multicast_enabled; list_for_each_entry(mid, &bridge_device->mids_list, list) { if (mc_enabled) mlxsw_sp_mc_write_mdb_entry(mlxsw_sp, mid, bridge_device); else mlxsw_sp_mc_remove_mdb_entry(mlxsw_sp, mid); } } static void mlxsw_sp_port_mrouter_update_mdb(struct mlxsw_sp_port *mlxsw_sp_port, struct mlxsw_sp_bridge_port *bridge_port, bool add) { struct mlxsw_sp_bridge_device *bridge_device; struct mlxsw_sp_mid *mid; bridge_device = bridge_port->bridge_device; list_for_each_entry(mid, &bridge_device->mids_list, list) { if (!test_bit(mlxsw_sp_port->local_port, mid->ports_in_mid)) mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, add); } } struct mlxsw_sp_span_respin_work { struct work_struct work; struct mlxsw_sp *mlxsw_sp; }; static void mlxsw_sp_span_respin_work(struct work_struct *work) { struct mlxsw_sp_span_respin_work *respin_work = container_of(work, struct mlxsw_sp_span_respin_work, work); rtnl_lock(); mlxsw_sp_span_respin(respin_work->mlxsw_sp); rtnl_unlock(); kfree(respin_work); } static void mlxsw_sp_span_respin_schedule(struct mlxsw_sp *mlxsw_sp) { struct mlxsw_sp_span_respin_work *respin_work; respin_work = kzalloc(sizeof(*respin_work), GFP_ATOMIC); if (!respin_work) return; INIT_WORK(&respin_work->work, mlxsw_sp_span_respin_work); respin_work->mlxsw_sp = mlxsw_sp; mlxsw_core_schedule_work(&respin_work->work); } static int mlxsw_sp_port_obj_add(struct net_device *dev, const struct switchdev_obj *obj, struct switchdev_trans *trans, struct netlink_ext_ack *extack) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); const struct switchdev_obj_port_vlan *vlan; int err = 0; switch (obj->id) { case SWITCHDEV_OBJ_ID_PORT_VLAN: vlan = SWITCHDEV_OBJ_PORT_VLAN(obj); err = mlxsw_sp_port_vlans_add(mlxsw_sp_port, vlan, trans, extack); if (switchdev_trans_ph_prepare(trans)) { /* The event is emitted before the changes are actually * applied to the bridge. Therefore schedule the respin * call for later, so that the respin logic sees the * updated bridge state. */ mlxsw_sp_span_respin_schedule(mlxsw_sp_port->mlxsw_sp); } break; case SWITCHDEV_OBJ_ID_PORT_MDB: err = mlxsw_sp_port_mdb_add(mlxsw_sp_port, SWITCHDEV_OBJ_PORT_MDB(obj), trans); break; default: err = -EOPNOTSUPP; break; } return err; } static void mlxsw_sp_bridge_port_vlan_del(struct mlxsw_sp_port *mlxsw_sp_port, struct mlxsw_sp_bridge_port *bridge_port, u16 vid) { u16 pvid = mlxsw_sp_port->pvid == vid ? 0 : mlxsw_sp_port->pvid; struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid); if (WARN_ON(!mlxsw_sp_port_vlan)) return; mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan); mlxsw_sp_port_pvid_set(mlxsw_sp_port, pvid); mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false); mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan); } static int mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port, const struct switchdev_obj_port_vlan *vlan) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; struct net_device *orig_dev = vlan->obj.orig_dev; struct mlxsw_sp_bridge_port *bridge_port; u16 vid; if (netif_is_bridge_master(orig_dev)) return -EOPNOTSUPP; bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev); if (WARN_ON(!bridge_port)) return -EINVAL; if (!bridge_port->bridge_device->vlan_enabled) return 0; for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) mlxsw_sp_bridge_port_vlan_del(mlxsw_sp_port, bridge_port, vid); return 0; } static int __mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port, struct mlxsw_sp_bridge_port *bridge_port, struct mlxsw_sp_mid *mid) { struct net_device *dev = mlxsw_sp_port->dev; int err; if (bridge_port->bridge_device->multicast_enabled && !bridge_port->mrouter) { err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false); if (err) netdev_err(dev, "Unable to remove port from SMID\n"); } err = mlxsw_sp_port_remove_from_mid(mlxsw_sp_port, mid); if (err) netdev_err(dev, "Unable to remove MC SFD\n"); return err; } static int mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port, const struct switchdev_obj_port_mdb *mdb) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; struct net_device *orig_dev = mdb->obj.orig_dev; struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; struct mlxsw_sp_bridge_device *bridge_device; struct net_device *dev = mlxsw_sp_port->dev; struct mlxsw_sp_bridge_port *bridge_port; struct mlxsw_sp_mid *mid; u16 fid_index; bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev); if (!bridge_port) return 0; bridge_device = bridge_port->bridge_device; mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port, bridge_device, mdb->vid); if (!mlxsw_sp_port_vlan) return 0; fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid); mid = __mlxsw_sp_mc_get(bridge_device, mdb->addr, fid_index); if (!mid) { netdev_err(dev, "Unable to remove port from MC DB\n"); return -EINVAL; } return __mlxsw_sp_port_mdb_del(mlxsw_sp_port, bridge_port, mid); } static void mlxsw_sp_bridge_port_mdb_flush(struct mlxsw_sp_port *mlxsw_sp_port, struct mlxsw_sp_bridge_port *bridge_port) { struct mlxsw_sp_bridge_device *bridge_device; struct mlxsw_sp_mid *mid, *tmp; bridge_device = bridge_port->bridge_device; list_for_each_entry_safe(mid, tmp, &bridge_device->mids_list, list) { if (test_bit(mlxsw_sp_port->local_port, mid->ports_in_mid)) { __mlxsw_sp_port_mdb_del(mlxsw_sp_port, bridge_port, mid); } else if (bridge_device->multicast_enabled && bridge_port->mrouter) { mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false); } } } static int mlxsw_sp_port_obj_del(struct net_device *dev, const struct switchdev_obj *obj) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); int err = 0; switch (obj->id) { case SWITCHDEV_OBJ_ID_PORT_VLAN: err = mlxsw_sp_port_vlans_del(mlxsw_sp_port, SWITCHDEV_OBJ_PORT_VLAN(obj)); break; case SWITCHDEV_OBJ_ID_PORT_MDB: err = mlxsw_sp_port_mdb_del(mlxsw_sp_port, SWITCHDEV_OBJ_PORT_MDB(obj)); break; default: err = -EOPNOTSUPP; break; } mlxsw_sp_span_respin_schedule(mlxsw_sp_port->mlxsw_sp); return err; } static struct mlxsw_sp_port *mlxsw_sp_lag_rep_port(struct mlxsw_sp *mlxsw_sp, u16 lag_id) { struct mlxsw_sp_port *mlxsw_sp_port; u64 max_lag_members; int i; max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_LAG_MEMBERS); for (i = 0; i < max_lag_members; i++) { mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i); if (mlxsw_sp_port) return mlxsw_sp_port; } return NULL; } static int mlxsw_sp_bridge_8021q_port_join(struct mlxsw_sp_bridge_device *bridge_device, struct mlxsw_sp_bridge_port *bridge_port, struct mlxsw_sp_port *mlxsw_sp_port, struct netlink_ext_ack *extack) { if (is_vlan_dev(bridge_port->dev)) { NL_SET_ERR_MSG_MOD(extack, "Can not enslave a VLAN device to a VLAN-aware bridge"); return -EINVAL; } /* Port is no longer usable as a router interface */ if (mlxsw_sp_port->default_vlan->fid) mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port->default_vlan); return 0; } static void mlxsw_sp_bridge_8021q_port_leave(struct mlxsw_sp_bridge_device *bridge_device, struct mlxsw_sp_bridge_port *bridge_port, struct mlxsw_sp_port *mlxsw_sp_port) { /* Make sure untagged frames are allowed to ingress */ mlxsw_sp_port_pvid_set(mlxsw_sp_port, MLXSW_SP_DEFAULT_VID); } static int mlxsw_sp_bridge_8021q_vxlan_join(struct mlxsw_sp_bridge_device *bridge_device, const struct net_device *vxlan_dev, u16 vid, struct netlink_ext_ack *extack) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); struct vxlan_dev *vxlan = netdev_priv(vxlan_dev); struct mlxsw_sp_nve_params params = { .type = MLXSW_SP_NVE_TYPE_VXLAN, .vni = vxlan->cfg.vni, .dev = vxlan_dev, }; struct mlxsw_sp_fid *fid; int err; /* If the VLAN is 0, we need to find the VLAN that is configured as * PVID and egress untagged on the bridge port of the VxLAN device. * It is possible no such VLAN exists */ if (!vid) { err = mlxsw_sp_vxlan_mapped_vid(vxlan_dev, &vid); if (err || !vid) return err; } /* If no other port is member in the VLAN, then the FID does not exist. * NVE will be enabled on the FID once a port joins the VLAN */ fid = mlxsw_sp_fid_8021q_lookup(mlxsw_sp, vid); if (!fid) return 0; if (mlxsw_sp_fid_vni_is_set(fid)) { NL_SET_ERR_MSG_MOD(extack, "VNI is already set on FID"); err = -EINVAL; goto err_vni_exists; } err = mlxsw_sp_nve_fid_enable(mlxsw_sp, fid, ¶ms, extack); if (err) goto err_nve_fid_enable; /* The tunnel port does not hold a reference on the FID. Only * local ports and the router port */ mlxsw_sp_fid_put(fid); return 0; err_nve_fid_enable: err_vni_exists: mlxsw_sp_fid_put(fid); return err; } static struct net_device * mlxsw_sp_bridge_8021q_vxlan_dev_find(struct net_device *br_dev, u16 vid) { struct net_device *dev; struct list_head *iter; netdev_for_each_lower_dev(br_dev, dev, iter) { u16 pvid; int err; if (!netif_is_vxlan(dev)) continue; err = mlxsw_sp_vxlan_mapped_vid(dev, &pvid); if (err || pvid != vid) continue; return dev; } return NULL; } static struct mlxsw_sp_fid * mlxsw_sp_bridge_8021q_fid_get(struct mlxsw_sp_bridge_device *bridge_device, u16 vid, struct netlink_ext_ack *extack) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); struct net_device *vxlan_dev; struct mlxsw_sp_fid *fid; int err; fid = mlxsw_sp_fid_8021q_get(mlxsw_sp, vid); if (IS_ERR(fid)) return fid; if (mlxsw_sp_fid_vni_is_set(fid)) return fid; /* Find the VxLAN device that has the specified VLAN configured as * PVID and egress untagged. There can be at most one such device */ vxlan_dev = mlxsw_sp_bridge_8021q_vxlan_dev_find(bridge_device->dev, vid); if (!vxlan_dev) return fid; if (!netif_running(vxlan_dev)) return fid; err = mlxsw_sp_bridge_8021q_vxlan_join(bridge_device, vxlan_dev, vid, extack); if (err) goto err_vxlan_join; return fid; err_vxlan_join: mlxsw_sp_fid_put(fid); return ERR_PTR(err); } static struct mlxsw_sp_fid * mlxsw_sp_bridge_8021q_fid_lookup(struct mlxsw_sp_bridge_device *bridge_device, u16 vid) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); return mlxsw_sp_fid_8021q_lookup(mlxsw_sp, vid); } static u16 mlxsw_sp_bridge_8021q_fid_vid(struct mlxsw_sp_bridge_device *bridge_device, const struct mlxsw_sp_fid *fid) { return mlxsw_sp_fid_8021q_vid(fid); } static const struct mlxsw_sp_bridge_ops mlxsw_sp_bridge_8021q_ops = { .port_join = mlxsw_sp_bridge_8021q_port_join, .port_leave = mlxsw_sp_bridge_8021q_port_leave, .vxlan_join = mlxsw_sp_bridge_8021q_vxlan_join, .fid_get = mlxsw_sp_bridge_8021q_fid_get, .fid_lookup = mlxsw_sp_bridge_8021q_fid_lookup, .fid_vid = mlxsw_sp_bridge_8021q_fid_vid, }; static bool mlxsw_sp_port_is_br_member(const struct mlxsw_sp_port *mlxsw_sp_port, const struct net_device *br_dev) { struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list, list) { if (mlxsw_sp_port_vlan->bridge_port && mlxsw_sp_port_vlan->bridge_port->bridge_device->dev == br_dev) return true; } return false; } static int mlxsw_sp_bridge_8021d_port_join(struct mlxsw_sp_bridge_device *bridge_device, struct mlxsw_sp_bridge_port *bridge_port, struct mlxsw_sp_port *mlxsw_sp_port, struct netlink_ext_ack *extack) { struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; struct net_device *dev = bridge_port->dev; u16 vid; vid = is_vlan_dev(dev) ? vlan_dev_vlan_id(dev) : MLXSW_SP_DEFAULT_VID; mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid); if (WARN_ON(!mlxsw_sp_port_vlan)) return -EINVAL; if (mlxsw_sp_port_is_br_member(mlxsw_sp_port, bridge_device->dev)) { NL_SET_ERR_MSG_MOD(extack, "Can not bridge VLAN uppers of the same port"); return -EINVAL; } /* Port is no longer usable as a router interface */ if (mlxsw_sp_port_vlan->fid) mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan); return mlxsw_sp_port_vlan_bridge_join(mlxsw_sp_port_vlan, bridge_port, extack); } static void mlxsw_sp_bridge_8021d_port_leave(struct mlxsw_sp_bridge_device *bridge_device, struct mlxsw_sp_bridge_port *bridge_port, struct mlxsw_sp_port *mlxsw_sp_port) { struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; struct net_device *dev = bridge_port->dev; u16 vid; vid = is_vlan_dev(dev) ? vlan_dev_vlan_id(dev) : MLXSW_SP_DEFAULT_VID; mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid); if (!mlxsw_sp_port_vlan || !mlxsw_sp_port_vlan->bridge_port) return; mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan); } static int mlxsw_sp_bridge_8021d_vxlan_join(struct mlxsw_sp_bridge_device *bridge_device, const struct net_device *vxlan_dev, u16 vid, struct netlink_ext_ack *extack) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); struct vxlan_dev *vxlan = netdev_priv(vxlan_dev); struct mlxsw_sp_nve_params params = { .type = MLXSW_SP_NVE_TYPE_VXLAN, .vni = vxlan->cfg.vni, .dev = vxlan_dev, }; struct mlxsw_sp_fid *fid; int err; fid = mlxsw_sp_fid_8021d_lookup(mlxsw_sp, bridge_device->dev->ifindex); if (!fid) { NL_SET_ERR_MSG_MOD(extack, "Did not find a corresponding FID"); return -EINVAL; } if (mlxsw_sp_fid_vni_is_set(fid)) { NL_SET_ERR_MSG_MOD(extack, "VNI is already set on FID"); err = -EINVAL; goto err_vni_exists; } err = mlxsw_sp_nve_fid_enable(mlxsw_sp, fid, ¶ms, extack); if (err) goto err_nve_fid_enable; /* The tunnel port does not hold a reference on the FID. Only * local ports and the router port */ mlxsw_sp_fid_put(fid); return 0; err_nve_fid_enable: err_vni_exists: mlxsw_sp_fid_put(fid); return err; } static struct mlxsw_sp_fid * mlxsw_sp_bridge_8021d_fid_get(struct mlxsw_sp_bridge_device *bridge_device, u16 vid, struct netlink_ext_ack *extack) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); struct net_device *vxlan_dev; struct mlxsw_sp_fid *fid; int err; fid = mlxsw_sp_fid_8021d_get(mlxsw_sp, bridge_device->dev->ifindex); if (IS_ERR(fid)) return fid; if (mlxsw_sp_fid_vni_is_set(fid)) return fid; vxlan_dev = mlxsw_sp_bridge_vxlan_dev_find(bridge_device->dev); if (!vxlan_dev) return fid; if (!netif_running(vxlan_dev)) return fid; err = mlxsw_sp_bridge_8021d_vxlan_join(bridge_device, vxlan_dev, 0, extack); if (err) goto err_vxlan_join; return fid; err_vxlan_join: mlxsw_sp_fid_put(fid); return ERR_PTR(err); } static struct mlxsw_sp_fid * mlxsw_sp_bridge_8021d_fid_lookup(struct mlxsw_sp_bridge_device *bridge_device, u16 vid) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); /* The only valid VLAN for a VLAN-unaware bridge is 0 */ if (vid) return NULL; return mlxsw_sp_fid_8021d_lookup(mlxsw_sp, bridge_device->dev->ifindex); } static u16 mlxsw_sp_bridge_8021d_fid_vid(struct mlxsw_sp_bridge_device *bridge_device, const struct mlxsw_sp_fid *fid) { return 0; } static const struct mlxsw_sp_bridge_ops mlxsw_sp_bridge_8021d_ops = { .port_join = mlxsw_sp_bridge_8021d_port_join, .port_leave = mlxsw_sp_bridge_8021d_port_leave, .vxlan_join = mlxsw_sp_bridge_8021d_vxlan_join, .fid_get = mlxsw_sp_bridge_8021d_fid_get, .fid_lookup = mlxsw_sp_bridge_8021d_fid_lookup, .fid_vid = mlxsw_sp_bridge_8021d_fid_vid, }; int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port, struct net_device *brport_dev, struct net_device *br_dev, struct netlink_ext_ack *extack) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; struct mlxsw_sp_bridge_device *bridge_device; struct mlxsw_sp_bridge_port *bridge_port; int err; bridge_port = mlxsw_sp_bridge_port_get(mlxsw_sp->bridge, brport_dev); if (IS_ERR(bridge_port)) return PTR_ERR(bridge_port); bridge_device = bridge_port->bridge_device; err = bridge_device->ops->port_join(bridge_device, bridge_port, mlxsw_sp_port, extack); if (err) goto err_port_join; return 0; err_port_join: mlxsw_sp_bridge_port_put(mlxsw_sp->bridge, bridge_port); return err; } void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port, struct net_device *brport_dev, struct net_device *br_dev) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; struct mlxsw_sp_bridge_device *bridge_device; struct mlxsw_sp_bridge_port *bridge_port; bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); if (!bridge_device) return; bridge_port = __mlxsw_sp_bridge_port_find(bridge_device, brport_dev); if (!bridge_port) return; bridge_device->ops->port_leave(bridge_device, bridge_port, mlxsw_sp_port); mlxsw_sp_bridge_port_put(mlxsw_sp->bridge, bridge_port); } int mlxsw_sp_bridge_vxlan_join(struct mlxsw_sp *mlxsw_sp, const struct net_device *br_dev, const struct net_device *vxlan_dev, u16 vid, struct netlink_ext_ack *extack) { struct mlxsw_sp_bridge_device *bridge_device; bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); if (WARN_ON(!bridge_device)) return -EINVAL; return bridge_device->ops->vxlan_join(bridge_device, vxlan_dev, vid, extack); } void mlxsw_sp_bridge_vxlan_leave(struct mlxsw_sp *mlxsw_sp, const struct net_device *vxlan_dev) { struct vxlan_dev *vxlan = netdev_priv(vxlan_dev); struct mlxsw_sp_fid *fid; /* If the VxLAN device is down, then the FID does not have a VNI */ fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vxlan->cfg.vni); if (!fid) return; mlxsw_sp_nve_fid_disable(mlxsw_sp, fid); mlxsw_sp_fid_put(fid); } struct mlxsw_sp_fid *mlxsw_sp_bridge_fid_get(struct mlxsw_sp *mlxsw_sp, const struct net_device *br_dev, u16 vid, struct netlink_ext_ack *extack) { struct mlxsw_sp_bridge_device *bridge_device; bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); if (WARN_ON(!bridge_device)) return ERR_PTR(-EINVAL); return bridge_device->ops->fid_get(bridge_device, vid, extack); } static void mlxsw_sp_switchdev_vxlan_addr_convert(const union vxlan_addr *vxlan_addr, enum mlxsw_sp_l3proto *proto, union mlxsw_sp_l3addr *addr) { if (vxlan_addr->sa.sa_family == AF_INET) { addr->addr4 = vxlan_addr->sin.sin_addr.s_addr; *proto = MLXSW_SP_L3_PROTO_IPV4; } else { addr->addr6 = vxlan_addr->sin6.sin6_addr; *proto = MLXSW_SP_L3_PROTO_IPV6; } } static void mlxsw_sp_switchdev_addr_vxlan_convert(enum mlxsw_sp_l3proto proto, const union mlxsw_sp_l3addr *addr, union vxlan_addr *vxlan_addr) { switch (proto) { case MLXSW_SP_L3_PROTO_IPV4: vxlan_addr->sa.sa_family = AF_INET; vxlan_addr->sin.sin_addr.s_addr = addr->addr4; break; case MLXSW_SP_L3_PROTO_IPV6: vxlan_addr->sa.sa_family = AF_INET6; vxlan_addr->sin6.sin6_addr = addr->addr6; break; } } static void mlxsw_sp_fdb_vxlan_call_notifiers(struct net_device *dev, const char *mac, enum mlxsw_sp_l3proto proto, union mlxsw_sp_l3addr *addr, __be32 vni, bool adding) { struct switchdev_notifier_vxlan_fdb_info info; struct vxlan_dev *vxlan = netdev_priv(dev); enum switchdev_notifier_type type; type = adding ? SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE : SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE; mlxsw_sp_switchdev_addr_vxlan_convert(proto, addr, &info.remote_ip); info.remote_port = vxlan->cfg.dst_port; info.remote_vni = vni; info.remote_ifindex = 0; ether_addr_copy(info.eth_addr, mac); info.vni = vni; info.offloaded = adding; call_switchdev_notifiers(type, dev, &info.info, NULL); } static void mlxsw_sp_fdb_nve_call_notifiers(struct net_device *dev, const char *mac, enum mlxsw_sp_l3proto proto, union mlxsw_sp_l3addr *addr, __be32 vni, bool adding) { if (netif_is_vxlan(dev)) mlxsw_sp_fdb_vxlan_call_notifiers(dev, mac, proto, addr, vni, adding); } static void mlxsw_sp_fdb_call_notifiers(enum switchdev_notifier_type type, const char *mac, u16 vid, struct net_device *dev, bool offloaded) { struct switchdev_notifier_fdb_info info; info.addr = mac; info.vid = vid; info.offloaded = offloaded; call_switchdev_notifiers(type, dev, &info.info, NULL); } static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp, char *sfn_pl, int rec_index, bool adding) { struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; struct mlxsw_sp_bridge_device *bridge_device; struct mlxsw_sp_bridge_port *bridge_port; struct mlxsw_sp_port *mlxsw_sp_port; enum switchdev_notifier_type type; char mac[ETH_ALEN]; u8 local_port; u16 vid, fid; bool do_notification = true; int err; mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &fid, &local_port); mlxsw_sp_port = mlxsw_sp->ports[local_port]; if (!mlxsw_sp_port) { dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect local port in FDB notification\n"); goto just_remove; } if (mlxsw_sp_fid_is_dummy(mlxsw_sp, fid)) goto just_remove; mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid); if (!mlxsw_sp_port_vlan) { netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n"); goto just_remove; } bridge_port = mlxsw_sp_port_vlan->bridge_port; if (!bridge_port) { netdev_err(mlxsw_sp_port->dev, "{Port, VID} not associated with a bridge\n"); goto just_remove; } bridge_device = bridge_port->bridge_device; vid = bridge_device->vlan_enabled ? mlxsw_sp_port_vlan->vid : 0; do_fdb_op: err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid, adding, true); if (err) { dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n"); return; } if (!do_notification) return; type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE : SWITCHDEV_FDB_DEL_TO_BRIDGE; mlxsw_sp_fdb_call_notifiers(type, mac, vid, bridge_port->dev, adding); return; just_remove: adding = false; do_notification = false; goto do_fdb_op; } static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp, char *sfn_pl, int rec_index, bool adding) { struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; struct mlxsw_sp_bridge_device *bridge_device; struct mlxsw_sp_bridge_port *bridge_port; struct mlxsw_sp_port *mlxsw_sp_port; enum switchdev_notifier_type type; char mac[ETH_ALEN]; u16 lag_vid = 0; u16 lag_id; u16 vid, fid; bool do_notification = true; int err; mlxsw_reg_sfn_mac_lag_unpack(sfn_pl, rec_index, mac, &fid, &lag_id); mlxsw_sp_port = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id); if (!mlxsw_sp_port) { dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Cannot find port representor for LAG\n"); goto just_remove; } if (mlxsw_sp_fid_is_dummy(mlxsw_sp, fid)) goto just_remove; mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid); if (!mlxsw_sp_port_vlan) { netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n"); goto just_remove; } bridge_port = mlxsw_sp_port_vlan->bridge_port; if (!bridge_port) { netdev_err(mlxsw_sp_port->dev, "{Port, VID} not associated with a bridge\n"); goto just_remove; } bridge_device = bridge_port->bridge_device; vid = bridge_device->vlan_enabled ? mlxsw_sp_port_vlan->vid : 0; lag_vid = mlxsw_sp_fid_lag_vid_valid(mlxsw_sp_port_vlan->fid) ? mlxsw_sp_port_vlan->vid : 0; do_fdb_op: err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, lag_vid, adding, true); if (err) { dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n"); return; } if (!do_notification) return; type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE : SWITCHDEV_FDB_DEL_TO_BRIDGE; mlxsw_sp_fdb_call_notifiers(type, mac, vid, bridge_port->dev, adding); return; just_remove: adding = false; do_notification = false; goto do_fdb_op; } static int __mlxsw_sp_fdb_notify_mac_uc_tunnel_process(struct mlxsw_sp *mlxsw_sp, const struct mlxsw_sp_fid *fid, bool adding, struct net_device **nve_dev, u16 *p_vid, __be32 *p_vni) { struct mlxsw_sp_bridge_device *bridge_device; struct net_device *br_dev, *dev; int nve_ifindex; int err; err = mlxsw_sp_fid_nve_ifindex(fid, &nve_ifindex); if (err) return err; err = mlxsw_sp_fid_vni(fid, p_vni); if (err) return err; dev = __dev_get_by_index(&init_net, nve_ifindex); if (!dev) return -EINVAL; *nve_dev = dev; if (!netif_running(dev)) return -EINVAL; if (adding && !br_port_flag_is_set(dev, BR_LEARNING)) return -EINVAL; if (adding && netif_is_vxlan(dev)) { struct vxlan_dev *vxlan = netdev_priv(dev); if (!(vxlan->cfg.flags & VXLAN_F_LEARN)) return -EINVAL; } br_dev = netdev_master_upper_dev_get(dev); if (!br_dev) return -EINVAL; bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); if (!bridge_device) return -EINVAL; *p_vid = bridge_device->ops->fid_vid(bridge_device, fid); return 0; } static void mlxsw_sp_fdb_notify_mac_uc_tunnel_process(struct mlxsw_sp *mlxsw_sp, char *sfn_pl, int rec_index, bool adding) { enum mlxsw_reg_sfn_uc_tunnel_protocol sfn_proto; enum switchdev_notifier_type type; struct net_device *nve_dev; union mlxsw_sp_l3addr addr; struct mlxsw_sp_fid *fid; char mac[ETH_ALEN]; u16 fid_index, vid; __be32 vni; u32 uip; int err; mlxsw_reg_sfn_uc_tunnel_unpack(sfn_pl, rec_index, mac, &fid_index, &uip, &sfn_proto); fid = mlxsw_sp_fid_lookup_by_index(mlxsw_sp, fid_index); if (!fid) goto err_fid_lookup; err = mlxsw_sp_nve_learned_ip_resolve(mlxsw_sp, uip, (enum mlxsw_sp_l3proto) sfn_proto, &addr); if (err) goto err_ip_resolve; err = __mlxsw_sp_fdb_notify_mac_uc_tunnel_process(mlxsw_sp, fid, adding, &nve_dev, &vid, &vni); if (err) goto err_fdb_process; err = mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, mac, fid_index, (enum mlxsw_sp_l3proto) sfn_proto, &addr, adding, true); if (err) goto err_fdb_op; mlxsw_sp_fdb_nve_call_notifiers(nve_dev, mac, (enum mlxsw_sp_l3proto) sfn_proto, &addr, vni, adding); type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE : SWITCHDEV_FDB_DEL_TO_BRIDGE; mlxsw_sp_fdb_call_notifiers(type, mac, vid, nve_dev, adding); mlxsw_sp_fid_put(fid); return; err_fdb_op: err_fdb_process: err_ip_resolve: mlxsw_sp_fid_put(fid); err_fid_lookup: /* Remove an FDB entry in case we cannot process it. Otherwise the * device will keep sending the same notification over and over again. */ mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, mac, fid_index, (enum mlxsw_sp_l3proto) sfn_proto, &addr, false, true); } static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp, char *sfn_pl, int rec_index) { switch (mlxsw_reg_sfn_rec_type_get(sfn_pl, rec_index)) { case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC: mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl, rec_index, true); break; case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC: mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl, rec_index, false); break; case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC_LAG: mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl, rec_index, true); break; case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC_LAG: mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl, rec_index, false); break; case MLXSW_REG_SFN_REC_TYPE_LEARNED_UNICAST_TUNNEL: mlxsw_sp_fdb_notify_mac_uc_tunnel_process(mlxsw_sp, sfn_pl, rec_index, true); break; case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_UNICAST_TUNNEL: mlxsw_sp_fdb_notify_mac_uc_tunnel_process(mlxsw_sp, sfn_pl, rec_index, false); break; } } static void mlxsw_sp_fdb_notify_work_schedule(struct mlxsw_sp *mlxsw_sp) { struct mlxsw_sp_bridge *bridge = mlxsw_sp->bridge; mlxsw_core_schedule_dw(&bridge->fdb_notify.dw, msecs_to_jiffies(bridge->fdb_notify.interval)); } static void mlxsw_sp_fdb_notify_work(struct work_struct *work) { struct mlxsw_sp_bridge *bridge; struct mlxsw_sp *mlxsw_sp; char *sfn_pl; u8 num_rec; int i; int err; sfn_pl = kmalloc(MLXSW_REG_SFN_LEN, GFP_KERNEL); if (!sfn_pl) return; bridge = container_of(work, struct mlxsw_sp_bridge, fdb_notify.dw.work); mlxsw_sp = bridge->mlxsw_sp; rtnl_lock(); mlxsw_reg_sfn_pack(sfn_pl); err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfn), sfn_pl); if (err) { dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to get FDB notifications\n"); goto out; } num_rec = mlxsw_reg_sfn_num_rec_get(sfn_pl); for (i = 0; i < num_rec; i++) mlxsw_sp_fdb_notify_rec_process(mlxsw_sp, sfn_pl, i); out: rtnl_unlock(); kfree(sfn_pl); mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp); } struct mlxsw_sp_switchdev_event_work { struct work_struct work; union { struct switchdev_notifier_fdb_info fdb_info; struct switchdev_notifier_vxlan_fdb_info vxlan_fdb_info; }; struct net_device *dev; unsigned long event; }; static void mlxsw_sp_switchdev_bridge_vxlan_fdb_event(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_switchdev_event_work * switchdev_work, struct mlxsw_sp_fid *fid, __be32 vni) { struct switchdev_notifier_vxlan_fdb_info vxlan_fdb_info; struct switchdev_notifier_fdb_info *fdb_info; struct net_device *dev = switchdev_work->dev; enum mlxsw_sp_l3proto proto; union mlxsw_sp_l3addr addr; int err; fdb_info = &switchdev_work->fdb_info; err = vxlan_fdb_find_uc(dev, fdb_info->addr, vni, &vxlan_fdb_info); if (err) return; mlxsw_sp_switchdev_vxlan_addr_convert(&vxlan_fdb_info.remote_ip, &proto, &addr); switch (switchdev_work->event) { case SWITCHDEV_FDB_ADD_TO_DEVICE: err = mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, vxlan_fdb_info.eth_addr, mlxsw_sp_fid_index(fid), proto, &addr, true, false); if (err) return; vxlan_fdb_info.offloaded = true; call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev, &vxlan_fdb_info.info, NULL); mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED, vxlan_fdb_info.eth_addr, fdb_info->vid, dev, true); break; case SWITCHDEV_FDB_DEL_TO_DEVICE: err = mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, vxlan_fdb_info.eth_addr, mlxsw_sp_fid_index(fid), proto, &addr, false, false); vxlan_fdb_info.offloaded = false; call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev, &vxlan_fdb_info.info, NULL); break; } } static void mlxsw_sp_switchdev_bridge_nve_fdb_event(struct mlxsw_sp_switchdev_event_work * switchdev_work) { struct mlxsw_sp_bridge_device *bridge_device; struct net_device *dev = switchdev_work->dev; struct net_device *br_dev; struct mlxsw_sp *mlxsw_sp; struct mlxsw_sp_fid *fid; __be32 vni; int err; if (switchdev_work->event != SWITCHDEV_FDB_ADD_TO_DEVICE && switchdev_work->event != SWITCHDEV_FDB_DEL_TO_DEVICE) return; if (switchdev_work->event == SWITCHDEV_FDB_ADD_TO_DEVICE && !switchdev_work->fdb_info.added_by_user) return; if (!netif_running(dev)) return; br_dev = netdev_master_upper_dev_get(dev); if (!br_dev) return; if (!netif_is_bridge_master(br_dev)) return; mlxsw_sp = mlxsw_sp_lower_get(br_dev); if (!mlxsw_sp) return; bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); if (!bridge_device) return; fid = bridge_device->ops->fid_lookup(bridge_device, switchdev_work->fdb_info.vid); if (!fid) return; err = mlxsw_sp_fid_vni(fid, &vni); if (err) goto out; mlxsw_sp_switchdev_bridge_vxlan_fdb_event(mlxsw_sp, switchdev_work, fid, vni); out: mlxsw_sp_fid_put(fid); } static void mlxsw_sp_switchdev_bridge_fdb_event_work(struct work_struct *work) { struct mlxsw_sp_switchdev_event_work *switchdev_work = container_of(work, struct mlxsw_sp_switchdev_event_work, work); struct net_device *dev = switchdev_work->dev; struct switchdev_notifier_fdb_info *fdb_info; struct mlxsw_sp_port *mlxsw_sp_port; int err; rtnl_lock(); if (netif_is_vxlan(dev)) { mlxsw_sp_switchdev_bridge_nve_fdb_event(switchdev_work); goto out; } mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(dev); if (!mlxsw_sp_port) goto out; switch (switchdev_work->event) { case SWITCHDEV_FDB_ADD_TO_DEVICE: fdb_info = &switchdev_work->fdb_info; if (!fdb_info->added_by_user) break; err = mlxsw_sp_port_fdb_set(mlxsw_sp_port, fdb_info, true); if (err) break; mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED, fdb_info->addr, fdb_info->vid, dev, true); break; case SWITCHDEV_FDB_DEL_TO_DEVICE: fdb_info = &switchdev_work->fdb_info; mlxsw_sp_port_fdb_set(mlxsw_sp_port, fdb_info, false); break; case SWITCHDEV_FDB_ADD_TO_BRIDGE: /* fall through */ case SWITCHDEV_FDB_DEL_TO_BRIDGE: /* These events are only used to potentially update an existing * SPAN mirror. */ break; } mlxsw_sp_span_respin(mlxsw_sp_port->mlxsw_sp); out: rtnl_unlock(); kfree(switchdev_work->fdb_info.addr); kfree(switchdev_work); dev_put(dev); } static void mlxsw_sp_switchdev_vxlan_fdb_add(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_switchdev_event_work * switchdev_work) { struct switchdev_notifier_vxlan_fdb_info *vxlan_fdb_info; struct mlxsw_sp_bridge_device *bridge_device; struct net_device *dev = switchdev_work->dev; u8 all_zeros_mac[ETH_ALEN] = { 0 }; enum mlxsw_sp_l3proto proto; union mlxsw_sp_l3addr addr; struct net_device *br_dev; struct mlxsw_sp_fid *fid; u16 vid; int err; vxlan_fdb_info = &switchdev_work->vxlan_fdb_info; br_dev = netdev_master_upper_dev_get(dev); bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); if (!bridge_device) return; fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vxlan_fdb_info->vni); if (!fid) return; mlxsw_sp_switchdev_vxlan_addr_convert(&vxlan_fdb_info->remote_ip, &proto, &addr); if (ether_addr_equal(vxlan_fdb_info->eth_addr, all_zeros_mac)) { err = mlxsw_sp_nve_flood_ip_add(mlxsw_sp, fid, proto, &addr); if (err) { mlxsw_sp_fid_put(fid); return; } vxlan_fdb_info->offloaded = true; call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev, &vxlan_fdb_info->info, NULL); mlxsw_sp_fid_put(fid); return; } /* The device has a single FDB table, whereas Linux has two - one * in the bridge driver and another in the VxLAN driver. We only * program an entry to the device if the MAC points to the VxLAN * device in the bridge's FDB table */ vid = bridge_device->ops->fid_vid(bridge_device, fid); if (br_fdb_find_port(br_dev, vxlan_fdb_info->eth_addr, vid) != dev) goto err_br_fdb_find; err = mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, vxlan_fdb_info->eth_addr, mlxsw_sp_fid_index(fid), proto, &addr, true, false); if (err) goto err_fdb_tunnel_uc_op; vxlan_fdb_info->offloaded = true; call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev, &vxlan_fdb_info->info, NULL); mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED, vxlan_fdb_info->eth_addr, vid, dev, true); mlxsw_sp_fid_put(fid); return; err_fdb_tunnel_uc_op: err_br_fdb_find: mlxsw_sp_fid_put(fid); } static void mlxsw_sp_switchdev_vxlan_fdb_del(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_switchdev_event_work * switchdev_work) { struct switchdev_notifier_vxlan_fdb_info *vxlan_fdb_info; struct mlxsw_sp_bridge_device *bridge_device; struct net_device *dev = switchdev_work->dev; struct net_device *br_dev = netdev_master_upper_dev_get(dev); u8 all_zeros_mac[ETH_ALEN] = { 0 }; enum mlxsw_sp_l3proto proto; union mlxsw_sp_l3addr addr; struct mlxsw_sp_fid *fid; u16 vid; vxlan_fdb_info = &switchdev_work->vxlan_fdb_info; bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); if (!bridge_device) return; fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vxlan_fdb_info->vni); if (!fid) return; mlxsw_sp_switchdev_vxlan_addr_convert(&vxlan_fdb_info->remote_ip, &proto, &addr); if (ether_addr_equal(vxlan_fdb_info->eth_addr, all_zeros_mac)) { mlxsw_sp_nve_flood_ip_del(mlxsw_sp, fid, proto, &addr); mlxsw_sp_fid_put(fid); return; } mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, vxlan_fdb_info->eth_addr, mlxsw_sp_fid_index(fid), proto, &addr, false, false); vid = bridge_device->ops->fid_vid(bridge_device, fid); mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED, vxlan_fdb_info->eth_addr, vid, dev, false); mlxsw_sp_fid_put(fid); } static void mlxsw_sp_switchdev_vxlan_fdb_event_work(struct work_struct *work) { struct mlxsw_sp_switchdev_event_work *switchdev_work = container_of(work, struct mlxsw_sp_switchdev_event_work, work); struct net_device *dev = switchdev_work->dev; struct mlxsw_sp *mlxsw_sp; struct net_device *br_dev; rtnl_lock(); if (!netif_running(dev)) goto out; br_dev = netdev_master_upper_dev_get(dev); if (!br_dev) goto out; if (!netif_is_bridge_master(br_dev)) goto out; mlxsw_sp = mlxsw_sp_lower_get(br_dev); if (!mlxsw_sp) goto out; switch (switchdev_work->event) { case SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE: mlxsw_sp_switchdev_vxlan_fdb_add(mlxsw_sp, switchdev_work); break; case SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE: mlxsw_sp_switchdev_vxlan_fdb_del(mlxsw_sp, switchdev_work); break; } out: rtnl_unlock(); kfree(switchdev_work); dev_put(dev); } static int mlxsw_sp_switchdev_vxlan_work_prepare(struct mlxsw_sp_switchdev_event_work * switchdev_work, struct switchdev_notifier_info *info) { struct vxlan_dev *vxlan = netdev_priv(switchdev_work->dev); struct switchdev_notifier_vxlan_fdb_info *vxlan_fdb_info; struct vxlan_config *cfg = &vxlan->cfg; struct netlink_ext_ack *extack; extack = switchdev_notifier_info_to_extack(info); vxlan_fdb_info = container_of(info, struct switchdev_notifier_vxlan_fdb_info, info); if (vxlan_fdb_info->remote_port != cfg->dst_port) { NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Non-default remote port is not supported"); return -EOPNOTSUPP; } if (vxlan_fdb_info->remote_vni != cfg->vni || vxlan_fdb_info->vni != cfg->vni) { NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Non-default VNI is not supported"); return -EOPNOTSUPP; } if (vxlan_fdb_info->remote_ifindex) { NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Local interface is not supported"); return -EOPNOTSUPP; } if (is_multicast_ether_addr(vxlan_fdb_info->eth_addr)) { NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Multicast MAC addresses not supported"); return -EOPNOTSUPP; } if (vxlan_addr_multicast(&vxlan_fdb_info->remote_ip)) { NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Multicast destination IP is not supported"); return -EOPNOTSUPP; } switchdev_work->vxlan_fdb_info = *vxlan_fdb_info; return 0; } /* Called under rcu_read_lock() */ static int mlxsw_sp_switchdev_event(struct notifier_block *unused, unsigned long event, void *ptr) { struct net_device *dev = switchdev_notifier_info_to_dev(ptr); struct mlxsw_sp_switchdev_event_work *switchdev_work; struct switchdev_notifier_fdb_info *fdb_info; struct switchdev_notifier_info *info = ptr; struct net_device *br_dev; int err; if (event == SWITCHDEV_PORT_ATTR_SET) { err = switchdev_handle_port_attr_set(dev, ptr, mlxsw_sp_port_dev_check, mlxsw_sp_port_attr_set); return notifier_from_errno(err); } /* Tunnel devices are not our uppers, so check their master instead */ br_dev = netdev_master_upper_dev_get_rcu(dev); if (!br_dev) return NOTIFY_DONE; if (!netif_is_bridge_master(br_dev)) return NOTIFY_DONE; if (!mlxsw_sp_port_dev_lower_find_rcu(br_dev)) return NOTIFY_DONE; switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC); if (!switchdev_work) return NOTIFY_BAD; switchdev_work->dev = dev; switchdev_work->event = event; switch (event) { case SWITCHDEV_FDB_ADD_TO_DEVICE: /* fall through */ case SWITCHDEV_FDB_DEL_TO_DEVICE: /* fall through */ case SWITCHDEV_FDB_ADD_TO_BRIDGE: /* fall through */ case SWITCHDEV_FDB_DEL_TO_BRIDGE: fdb_info = container_of(info, struct switchdev_notifier_fdb_info, info); INIT_WORK(&switchdev_work->work, mlxsw_sp_switchdev_bridge_fdb_event_work); memcpy(&switchdev_work->fdb_info, ptr, sizeof(switchdev_work->fdb_info)); switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC); if (!switchdev_work->fdb_info.addr) goto err_addr_alloc; ether_addr_copy((u8 *)switchdev_work->fdb_info.addr, fdb_info->addr); /* Take a reference on the device. This can be either * upper device containig mlxsw_sp_port or just a * mlxsw_sp_port */ dev_hold(dev); break; case SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE: /* fall through */ case SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE: INIT_WORK(&switchdev_work->work, mlxsw_sp_switchdev_vxlan_fdb_event_work); err = mlxsw_sp_switchdev_vxlan_work_prepare(switchdev_work, info); if (err) goto err_vxlan_work_prepare; dev_hold(dev); break; default: kfree(switchdev_work); return NOTIFY_DONE; } mlxsw_core_schedule_work(&switchdev_work->work); return NOTIFY_DONE; err_vxlan_work_prepare: err_addr_alloc: kfree(switchdev_work); return NOTIFY_BAD; } struct notifier_block mlxsw_sp_switchdev_notifier = { .notifier_call = mlxsw_sp_switchdev_event, }; static int mlxsw_sp_switchdev_vxlan_vlan_add(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_bridge_device *bridge_device, const struct net_device *vxlan_dev, u16 vid, bool flag_untagged, bool flag_pvid, struct netlink_ext_ack *extack) { struct vxlan_dev *vxlan = netdev_priv(vxlan_dev); __be32 vni = vxlan->cfg.vni; struct mlxsw_sp_fid *fid; u16 old_vid; int err; /* We cannot have the same VLAN as PVID and egress untagged on multiple * VxLAN devices. Note that we get this notification before the VLAN is * actually added to the bridge's database, so it is not possible for * the lookup function to return 'vxlan_dev' */ if (flag_untagged && flag_pvid && mlxsw_sp_bridge_8021q_vxlan_dev_find(bridge_device->dev, vid)) { NL_SET_ERR_MSG_MOD(extack, "VLAN already mapped to a different VNI"); return -EINVAL; } if (!netif_running(vxlan_dev)) return 0; /* First case: FID is not associated with this VNI, but the new VLAN * is both PVID and egress untagged. Need to enable NVE on the FID, if * it exists */ fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vni); if (!fid) { if (!flag_untagged || !flag_pvid) return 0; return mlxsw_sp_bridge_8021q_vxlan_join(bridge_device, vxlan_dev, vid, extack); } /* Second case: FID is associated with the VNI and the VLAN associated * with the FID is the same as the notified VLAN. This means the flags * (PVID / egress untagged) were toggled and that NVE should be * disabled on the FID */ old_vid = mlxsw_sp_fid_8021q_vid(fid); if (vid == old_vid) { if (WARN_ON(flag_untagged && flag_pvid)) { mlxsw_sp_fid_put(fid); return -EINVAL; } mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, vxlan_dev); mlxsw_sp_fid_put(fid); return 0; } /* Third case: A new VLAN was configured on the VxLAN device, but this * VLAN is not PVID, so there is nothing to do. */ if (!flag_pvid) { mlxsw_sp_fid_put(fid); return 0; } /* Fourth case: Thew new VLAN is PVID, which means the VLAN currently * mapped to the VNI should be unmapped */ mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, vxlan_dev); mlxsw_sp_fid_put(fid); /* Fifth case: The new VLAN is also egress untagged, which means the * VLAN needs to be mapped to the VNI */ if (!flag_untagged) return 0; err = mlxsw_sp_bridge_8021q_vxlan_join(bridge_device, vxlan_dev, vid, extack); if (err) goto err_vxlan_join; return 0; err_vxlan_join: mlxsw_sp_bridge_8021q_vxlan_join(bridge_device, vxlan_dev, old_vid, NULL); return err; } static void mlxsw_sp_switchdev_vxlan_vlan_del(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_bridge_device *bridge_device, const struct net_device *vxlan_dev, u16 vid) { struct vxlan_dev *vxlan = netdev_priv(vxlan_dev); __be32 vni = vxlan->cfg.vni; struct mlxsw_sp_fid *fid; if (!netif_running(vxlan_dev)) return; fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vni); if (!fid) return; /* A different VLAN than the one mapped to the VNI is deleted */ if (mlxsw_sp_fid_8021q_vid(fid) != vid) goto out; mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, vxlan_dev); out: mlxsw_sp_fid_put(fid); } static int mlxsw_sp_switchdev_vxlan_vlans_add(struct net_device *vxlan_dev, struct switchdev_notifier_port_obj_info * port_obj_info) { struct switchdev_obj_port_vlan *vlan = SWITCHDEV_OBJ_PORT_VLAN(port_obj_info->obj); bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID; struct switchdev_trans *trans = port_obj_info->trans; struct mlxsw_sp_bridge_device *bridge_device; struct netlink_ext_ack *extack; struct mlxsw_sp *mlxsw_sp; struct net_device *br_dev; u16 vid; extack = switchdev_notifier_info_to_extack(&port_obj_info->info); br_dev = netdev_master_upper_dev_get(vxlan_dev); if (!br_dev) return 0; mlxsw_sp = mlxsw_sp_lower_get(br_dev); if (!mlxsw_sp) return 0; port_obj_info->handled = true; if (switchdev_trans_ph_commit(trans)) return 0; bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); if (!bridge_device) return -EINVAL; if (!bridge_device->vlan_enabled) return 0; for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) { int err; err = mlxsw_sp_switchdev_vxlan_vlan_add(mlxsw_sp, bridge_device, vxlan_dev, vid, flag_untagged, flag_pvid, extack); if (err) return err; } return 0; } static void mlxsw_sp_switchdev_vxlan_vlans_del(struct net_device *vxlan_dev, struct switchdev_notifier_port_obj_info * port_obj_info) { struct switchdev_obj_port_vlan *vlan = SWITCHDEV_OBJ_PORT_VLAN(port_obj_info->obj); struct mlxsw_sp_bridge_device *bridge_device; struct mlxsw_sp *mlxsw_sp; struct net_device *br_dev; u16 vid; br_dev = netdev_master_upper_dev_get(vxlan_dev); if (!br_dev) return; mlxsw_sp = mlxsw_sp_lower_get(br_dev); if (!mlxsw_sp) return; port_obj_info->handled = true; bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); if (!bridge_device) return; if (!bridge_device->vlan_enabled) return; for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) mlxsw_sp_switchdev_vxlan_vlan_del(mlxsw_sp, bridge_device, vxlan_dev, vid); } static int mlxsw_sp_switchdev_handle_vxlan_obj_add(struct net_device *vxlan_dev, struct switchdev_notifier_port_obj_info * port_obj_info) { int err = 0; switch (port_obj_info->obj->id) { case SWITCHDEV_OBJ_ID_PORT_VLAN: err = mlxsw_sp_switchdev_vxlan_vlans_add(vxlan_dev, port_obj_info); break; default: break; } return err; } static void mlxsw_sp_switchdev_handle_vxlan_obj_del(struct net_device *vxlan_dev, struct switchdev_notifier_port_obj_info * port_obj_info) { switch (port_obj_info->obj->id) { case SWITCHDEV_OBJ_ID_PORT_VLAN: mlxsw_sp_switchdev_vxlan_vlans_del(vxlan_dev, port_obj_info); break; default: break; } } static int mlxsw_sp_switchdev_blocking_event(struct notifier_block *unused, unsigned long event, void *ptr) { struct net_device *dev = switchdev_notifier_info_to_dev(ptr); int err = 0; switch (event) { case SWITCHDEV_PORT_OBJ_ADD: if (netif_is_vxlan(dev)) err = mlxsw_sp_switchdev_handle_vxlan_obj_add(dev, ptr); else err = switchdev_handle_port_obj_add(dev, ptr, mlxsw_sp_port_dev_check, mlxsw_sp_port_obj_add); return notifier_from_errno(err); case SWITCHDEV_PORT_OBJ_DEL: if (netif_is_vxlan(dev)) mlxsw_sp_switchdev_handle_vxlan_obj_del(dev, ptr); else err = switchdev_handle_port_obj_del(dev, ptr, mlxsw_sp_port_dev_check, mlxsw_sp_port_obj_del); return notifier_from_errno(err); case SWITCHDEV_PORT_ATTR_SET: err = switchdev_handle_port_attr_set(dev, ptr, mlxsw_sp_port_dev_check, mlxsw_sp_port_attr_set); return notifier_from_errno(err); } return NOTIFY_DONE; } static struct notifier_block mlxsw_sp_switchdev_blocking_notifier = { .notifier_call = mlxsw_sp_switchdev_blocking_event, }; u8 mlxsw_sp_bridge_port_stp_state(struct mlxsw_sp_bridge_port *bridge_port) { return bridge_port->stp_state; } static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp) { struct mlxsw_sp_bridge *bridge = mlxsw_sp->bridge; struct notifier_block *nb; int err; err = mlxsw_sp_ageing_set(mlxsw_sp, MLXSW_SP_DEFAULT_AGEING_TIME); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to set default ageing time\n"); return err; } err = register_switchdev_notifier(&mlxsw_sp_switchdev_notifier); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to register switchdev notifier\n"); return err; } nb = &mlxsw_sp_switchdev_blocking_notifier; err = register_switchdev_blocking_notifier(nb); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to register switchdev blocking notifier\n"); goto err_register_switchdev_blocking_notifier; } INIT_DELAYED_WORK(&bridge->fdb_notify.dw, mlxsw_sp_fdb_notify_work); bridge->fdb_notify.interval = MLXSW_SP_DEFAULT_LEARNING_INTERVAL; mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp); return 0; err_register_switchdev_blocking_notifier: unregister_switchdev_notifier(&mlxsw_sp_switchdev_notifier); return err; } static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp) { struct notifier_block *nb; cancel_delayed_work_sync(&mlxsw_sp->bridge->fdb_notify.dw); nb = &mlxsw_sp_switchdev_blocking_notifier; unregister_switchdev_blocking_notifier(nb); unregister_switchdev_notifier(&mlxsw_sp_switchdev_notifier); } int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp) { struct mlxsw_sp_bridge *bridge; bridge = kzalloc(sizeof(*mlxsw_sp->bridge), GFP_KERNEL); if (!bridge) return -ENOMEM; mlxsw_sp->bridge = bridge; bridge->mlxsw_sp = mlxsw_sp; INIT_LIST_HEAD(&mlxsw_sp->bridge->bridges_list); bridge->bridge_8021q_ops = &mlxsw_sp_bridge_8021q_ops; bridge->bridge_8021d_ops = &mlxsw_sp_bridge_8021d_ops; return mlxsw_sp_fdb_init(mlxsw_sp); } void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp) { mlxsw_sp_fdb_fini(mlxsw_sp); WARN_ON(!list_empty(&mlxsw_sp->bridge->bridges_list)); kfree(mlxsw_sp->bridge); }
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