diff options
Diffstat (limited to 'drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c')
| -rw-r--r-- | drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c | 763 |
1 files changed, 763 insertions, 0 deletions
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c b/drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c new file mode 100644 index 000000000..4af85d108 --- /dev/null +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c @@ -0,0 +1,763 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Microchip Sparx5 Switch driver + * + * Copyright (c) 2021 Microchip Technology Inc. and its subsidiaries. + */ + +#include <linux/if_bridge.h> +#include <net/switchdev.h> + +#include "sparx5_main_regs.h" +#include "sparx5_main.h" + +static struct workqueue_struct *sparx5_owq; + +struct sparx5_switchdev_event_work { + struct work_struct work; + struct switchdev_notifier_fdb_info fdb_info; + struct net_device *dev; + struct sparx5 *sparx5; + unsigned long event; +}; + +static int sparx5_port_attr_pre_bridge_flags(struct sparx5_port *port, + struct switchdev_brport_flags flags) +{ + if (flags.mask & ~(BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD)) + return -EINVAL; + + return 0; +} + +static void sparx5_port_update_mcast_ip_flood(struct sparx5_port *port, bool flood_flag) +{ + bool should_flood = flood_flag || port->is_mrouter; + int pgid; + + for (pgid = PGID_IPV4_MC_DATA; pgid <= PGID_IPV6_MC_CTRL; pgid++) + sparx5_pgid_update_mask(port, pgid, should_flood); +} + +static void sparx5_port_attr_bridge_flags(struct sparx5_port *port, + struct switchdev_brport_flags flags) +{ + if (flags.mask & BR_MCAST_FLOOD) { + sparx5_pgid_update_mask(port, PGID_MC_FLOOD, !!(flags.val & BR_MCAST_FLOOD)); + sparx5_port_update_mcast_ip_flood(port, !!(flags.val & BR_MCAST_FLOOD)); + } + + if (flags.mask & BR_FLOOD) + sparx5_pgid_update_mask(port, PGID_UC_FLOOD, !!(flags.val & BR_FLOOD)); + if (flags.mask & BR_BCAST_FLOOD) + sparx5_pgid_update_mask(port, PGID_BCAST, !!(flags.val & BR_BCAST_FLOOD)); +} + +static void sparx5_attr_stp_state_set(struct sparx5_port *port, + u8 state) +{ + struct sparx5 *sparx5 = port->sparx5; + + if (!test_bit(port->portno, sparx5->bridge_mask)) { + netdev_err(port->ndev, + "Controlling non-bridged port %d?\n", port->portno); + return; + } + + switch (state) { + case BR_STATE_FORWARDING: + set_bit(port->portno, sparx5->bridge_fwd_mask); + fallthrough; + case BR_STATE_LEARNING: + set_bit(port->portno, sparx5->bridge_lrn_mask); + break; + + default: + /* All other states treated as blocking */ + clear_bit(port->portno, sparx5->bridge_fwd_mask); + clear_bit(port->portno, sparx5->bridge_lrn_mask); + break; + } + + /* apply the bridge_fwd_mask to all the ports */ + sparx5_update_fwd(sparx5); +} + +static void sparx5_port_attr_ageing_set(struct sparx5_port *port, + unsigned long ageing_clock_t) +{ + unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t); + u32 ageing_time = jiffies_to_msecs(ageing_jiffies); + + sparx5_set_ageing(port->sparx5, ageing_time); +} + +static void sparx5_port_attr_mrouter_set(struct sparx5_port *port, + struct net_device *orig_dev, + bool enable) +{ + struct sparx5 *sparx5 = port->sparx5; + struct sparx5_mdb_entry *e; + bool flood_flag; + + if ((enable && port->is_mrouter) || (!enable && !port->is_mrouter)) + return; + + /* Add/del mrouter port on all active mdb entries in HW. + * Don't change entry port mask, since that represents + * ports that actually joined that group. + */ + mutex_lock(&sparx5->mdb_lock); + list_for_each_entry(e, &sparx5->mdb_entries, list) { + if (!test_bit(port->portno, e->port_mask) && + ether_addr_is_ip_mcast(e->addr)) + sparx5_pgid_update_mask(port, e->pgid_idx, enable); + } + mutex_unlock(&sparx5->mdb_lock); + + /* Enable/disable flooding depending on if port is mrouter port + * or if mcast flood is enabled. + */ + port->is_mrouter = enable; + flood_flag = br_port_flag_is_set(port->ndev, BR_MCAST_FLOOD); + sparx5_port_update_mcast_ip_flood(port, flood_flag); +} + +static int sparx5_port_attr_set(struct net_device *dev, const void *ctx, + const struct switchdev_attr *attr, + struct netlink_ext_ack *extack) +{ + struct sparx5_port *port = netdev_priv(dev); + + switch (attr->id) { + case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS: + return sparx5_port_attr_pre_bridge_flags(port, + attr->u.brport_flags); + case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: + sparx5_port_attr_bridge_flags(port, attr->u.brport_flags); + break; + case SWITCHDEV_ATTR_ID_PORT_STP_STATE: + sparx5_attr_stp_state_set(port, attr->u.stp_state); + break; + case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: + sparx5_port_attr_ageing_set(port, attr->u.ageing_time); + break; + case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: + /* Used PVID 1 when default_pvid is 0, to avoid + * collision with non-bridged ports. + */ + if (port->pvid == 0) + port->pvid = 1; + port->vlan_aware = attr->u.vlan_filtering; + sparx5_vlan_port_apply(port->sparx5, port); + break; + case SWITCHDEV_ATTR_ID_PORT_MROUTER: + sparx5_port_attr_mrouter_set(port, + attr->orig_dev, + attr->u.mrouter); + break; + default: + return -EOPNOTSUPP; + } + + return 0; +} + +static int sparx5_port_bridge_join(struct sparx5_port *port, + struct net_device *bridge, + struct netlink_ext_ack *extack) +{ + struct sparx5 *sparx5 = port->sparx5; + struct net_device *ndev = port->ndev; + int err; + + if (bitmap_empty(sparx5->bridge_mask, SPX5_PORTS)) + /* First bridged port */ + sparx5->hw_bridge_dev = bridge; + else + if (sparx5->hw_bridge_dev != bridge) + /* This is adding the port to a second bridge, this is + * unsupported + */ + return -ENODEV; + + set_bit(port->portno, sparx5->bridge_mask); + + err = switchdev_bridge_port_offload(ndev, ndev, NULL, NULL, NULL, + false, extack); + if (err) + goto err_switchdev_offload; + + /* Remove standalone port entry */ + sparx5_mact_forget(sparx5, ndev->dev_addr, 0); + + /* Port enters in bridge mode therefor don't need to copy to CPU + * frames for multicast in case the bridge is not requesting them + */ + __dev_mc_unsync(ndev, sparx5_mc_unsync); + + return 0; + +err_switchdev_offload: + clear_bit(port->portno, sparx5->bridge_mask); + return err; +} + +static void sparx5_port_bridge_leave(struct sparx5_port *port, + struct net_device *bridge) +{ + struct sparx5 *sparx5 = port->sparx5; + + switchdev_bridge_port_unoffload(port->ndev, NULL, NULL, NULL); + + clear_bit(port->portno, sparx5->bridge_mask); + if (bitmap_empty(sparx5->bridge_mask, SPX5_PORTS)) + sparx5->hw_bridge_dev = NULL; + + /* Clear bridge vlan settings before updating the port settings */ + port->vlan_aware = 0; + port->pvid = NULL_VID; + port->vid = NULL_VID; + + /* Forward frames to CPU */ + sparx5_mact_learn(sparx5, PGID_CPU, port->ndev->dev_addr, 0); + + /* Port enters in host more therefore restore mc list */ + __dev_mc_sync(port->ndev, sparx5_mc_sync, sparx5_mc_unsync); +} + +static int sparx5_port_changeupper(struct net_device *dev, + struct netdev_notifier_changeupper_info *info) +{ + struct sparx5_port *port = netdev_priv(dev); + struct netlink_ext_ack *extack; + int err = 0; + + extack = netdev_notifier_info_to_extack(&info->info); + + if (netif_is_bridge_master(info->upper_dev)) { + if (info->linking) + err = sparx5_port_bridge_join(port, info->upper_dev, + extack); + else + sparx5_port_bridge_leave(port, info->upper_dev); + + sparx5_vlan_port_apply(port->sparx5, port); + } + + return err; +} + +static int sparx5_port_add_addr(struct net_device *dev, bool up) +{ + struct sparx5_port *port = netdev_priv(dev); + struct sparx5 *sparx5 = port->sparx5; + u16 vid = port->pvid; + + if (up) + sparx5_mact_learn(sparx5, PGID_CPU, port->ndev->dev_addr, vid); + else + sparx5_mact_forget(sparx5, port->ndev->dev_addr, vid); + + return 0; +} + +static int sparx5_netdevice_port_event(struct net_device *dev, + struct notifier_block *nb, + unsigned long event, void *ptr) +{ + int err = 0; + + if (!sparx5_netdevice_check(dev)) + return 0; + + switch (event) { + case NETDEV_CHANGEUPPER: + err = sparx5_port_changeupper(dev, ptr); + break; + case NETDEV_PRE_UP: + err = sparx5_port_add_addr(dev, true); + break; + case NETDEV_DOWN: + err = sparx5_port_add_addr(dev, false); + break; + } + + return err; +} + +static int sparx5_netdevice_event(struct notifier_block *nb, + unsigned long event, void *ptr) +{ + struct net_device *dev = netdev_notifier_info_to_dev(ptr); + int ret = 0; + + ret = sparx5_netdevice_port_event(dev, nb, event, ptr); + + return notifier_from_errno(ret); +} + +static void sparx5_switchdev_bridge_fdb_event_work(struct work_struct *work) +{ + struct sparx5_switchdev_event_work *switchdev_work = + container_of(work, struct sparx5_switchdev_event_work, work); + struct net_device *dev = switchdev_work->dev; + struct switchdev_notifier_fdb_info *fdb_info; + struct sparx5_port *port; + struct sparx5 *sparx5; + bool host_addr; + u16 vid; + + rtnl_lock(); + if (!sparx5_netdevice_check(dev)) { + host_addr = true; + sparx5 = switchdev_work->sparx5; + } else { + host_addr = false; + sparx5 = switchdev_work->sparx5; + port = netdev_priv(dev); + } + + fdb_info = &switchdev_work->fdb_info; + + /* Used PVID 1 when default_pvid is 0, to avoid + * collision with non-bridged ports. + */ + if (fdb_info->vid == 0) + vid = 1; + else + vid = fdb_info->vid; + + switch (switchdev_work->event) { + case SWITCHDEV_FDB_ADD_TO_DEVICE: + if (host_addr) + sparx5_add_mact_entry(sparx5, dev, PGID_CPU, + fdb_info->addr, vid); + else + sparx5_add_mact_entry(sparx5, port->ndev, port->portno, + fdb_info->addr, vid); + break; + case SWITCHDEV_FDB_DEL_TO_DEVICE: + sparx5_del_mact_entry(sparx5, fdb_info->addr, vid); + break; + } + + rtnl_unlock(); + kfree(switchdev_work->fdb_info.addr); + kfree(switchdev_work); + dev_put(dev); +} + +static void sparx5_schedule_work(struct work_struct *work) +{ + queue_work(sparx5_owq, work); +} + +static int sparx5_switchdev_event(struct notifier_block *nb, + unsigned long event, void *ptr) +{ + struct net_device *dev = switchdev_notifier_info_to_dev(ptr); + struct sparx5_switchdev_event_work *switchdev_work; + struct switchdev_notifier_fdb_info *fdb_info; + struct switchdev_notifier_info *info = ptr; + struct sparx5 *spx5; + int err; + + spx5 = container_of(nb, struct sparx5, switchdev_nb); + + switch (event) { + case SWITCHDEV_PORT_ATTR_SET: + err = switchdev_handle_port_attr_set(dev, ptr, + sparx5_netdevice_check, + sparx5_port_attr_set); + return notifier_from_errno(err); + case SWITCHDEV_FDB_ADD_TO_DEVICE: + fallthrough; + case SWITCHDEV_FDB_DEL_TO_DEVICE: + switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC); + if (!switchdev_work) + return NOTIFY_BAD; + + switchdev_work->dev = dev; + switchdev_work->event = event; + switchdev_work->sparx5 = spx5; + + fdb_info = container_of(info, + struct switchdev_notifier_fdb_info, + info); + INIT_WORK(&switchdev_work->work, + sparx5_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); + dev_hold(dev); + + sparx5_schedule_work(&switchdev_work->work); + break; + } + + return NOTIFY_DONE; +err_addr_alloc: + kfree(switchdev_work); + return NOTIFY_BAD; +} + +static int sparx5_handle_port_vlan_add(struct net_device *dev, + struct notifier_block *nb, + const struct switchdev_obj_port_vlan *v) +{ + struct sparx5_port *port = netdev_priv(dev); + + if (netif_is_bridge_master(dev)) { + struct sparx5 *sparx5 = + container_of(nb, struct sparx5, + switchdev_blocking_nb); + + /* Flood broadcast to CPU */ + sparx5_mact_learn(sparx5, PGID_BCAST, dev->broadcast, + v->vid); + return 0; + } + + if (!sparx5_netdevice_check(dev)) + return -EOPNOTSUPP; + + return sparx5_vlan_vid_add(port, v->vid, + v->flags & BRIDGE_VLAN_INFO_PVID, + v->flags & BRIDGE_VLAN_INFO_UNTAGGED); +} + +static int sparx5_alloc_mdb_entry(struct sparx5 *sparx5, + const unsigned char *addr, + u16 vid, + struct sparx5_mdb_entry **entry_out) +{ + struct sparx5_mdb_entry *entry; + u16 pgid_idx; + int err; + + entry = kzalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) + return -ENOMEM; + + err = sparx5_pgid_alloc_mcast(sparx5, &pgid_idx); + if (err) { + kfree(entry); + return err; + } + + memcpy(entry->addr, addr, ETH_ALEN); + entry->vid = vid; + entry->pgid_idx = pgid_idx; + + mutex_lock(&sparx5->mdb_lock); + list_add_tail(&entry->list, &sparx5->mdb_entries); + mutex_unlock(&sparx5->mdb_lock); + + *entry_out = entry; + return 0; +} + +static void sparx5_free_mdb_entry(struct sparx5 *sparx5, + const unsigned char *addr, + u16 vid) +{ + struct sparx5_mdb_entry *entry, *tmp; + + mutex_lock(&sparx5->mdb_lock); + list_for_each_entry_safe(entry, tmp, &sparx5->mdb_entries, list) { + if ((vid == 0 || entry->vid == vid) && + ether_addr_equal(addr, entry->addr)) { + list_del(&entry->list); + + sparx5_pgid_free(sparx5, entry->pgid_idx); + kfree(entry); + goto out; + } + } + +out: + mutex_unlock(&sparx5->mdb_lock); +} + +static struct sparx5_mdb_entry *sparx5_mdb_get_entry(struct sparx5 *sparx5, + const unsigned char *addr, + u16 vid) +{ + struct sparx5_mdb_entry *e, *found = NULL; + + mutex_lock(&sparx5->mdb_lock); + list_for_each_entry(e, &sparx5->mdb_entries, list) { + if (ether_addr_equal(e->addr, addr) && e->vid == vid) { + found = e; + goto out; + } + } + +out: + mutex_unlock(&sparx5->mdb_lock); + return found; +} + +static void sparx5_cpu_copy_ena(struct sparx5 *spx5, u16 pgid, bool enable) +{ + spx5_rmw(ANA_AC_PGID_MISC_CFG_PGID_CPU_COPY_ENA_SET(enable), + ANA_AC_PGID_MISC_CFG_PGID_CPU_COPY_ENA, spx5, + ANA_AC_PGID_MISC_CFG(pgid)); +} + +static int sparx5_handle_port_mdb_add(struct net_device *dev, + struct notifier_block *nb, + const struct switchdev_obj_port_mdb *v) +{ + struct sparx5_port *port = netdev_priv(dev); + struct sparx5 *spx5 = port->sparx5; + struct sparx5_mdb_entry *entry; + bool is_host, is_new; + int err, i; + u16 vid; + + if (!sparx5_netdevice_check(dev)) + return -EOPNOTSUPP; + + is_host = netif_is_bridge_master(v->obj.orig_dev); + + /* When VLAN unaware the vlan value is not parsed and we receive vid 0. + * Fall back to bridge vid 1. + */ + if (!br_vlan_enabled(spx5->hw_bridge_dev)) + vid = 1; + else + vid = v->vid; + + is_new = false; + entry = sparx5_mdb_get_entry(spx5, v->addr, vid); + if (!entry) { + err = sparx5_alloc_mdb_entry(spx5, v->addr, vid, &entry); + is_new = true; + if (err) + return err; + } + + mutex_lock(&spx5->mdb_lock); + + /* Add any mrouter ports to the new entry */ + if (is_new && ether_addr_is_ip_mcast(v->addr)) + for (i = 0; i < SPX5_PORTS; i++) + if (spx5->ports[i] && spx5->ports[i]->is_mrouter) + sparx5_pgid_update_mask(spx5->ports[i], + entry->pgid_idx, + true); + + if (is_host && !entry->cpu_copy) { + sparx5_cpu_copy_ena(spx5, entry->pgid_idx, true); + entry->cpu_copy = true; + } else if (!is_host) { + sparx5_pgid_update_mask(port, entry->pgid_idx, true); + set_bit(port->portno, entry->port_mask); + } + mutex_unlock(&spx5->mdb_lock); + + sparx5_mact_learn(spx5, entry->pgid_idx, entry->addr, entry->vid); + + return 0; +} + +static int sparx5_handle_port_mdb_del(struct net_device *dev, + struct notifier_block *nb, + const struct switchdev_obj_port_mdb *v) +{ + struct sparx5_port *port = netdev_priv(dev); + struct sparx5 *spx5 = port->sparx5; + struct sparx5_mdb_entry *entry; + bool is_host; + u16 vid; + + if (!sparx5_netdevice_check(dev)) + return -EOPNOTSUPP; + + is_host = netif_is_bridge_master(v->obj.orig_dev); + + if (!br_vlan_enabled(spx5->hw_bridge_dev)) + vid = 1; + else + vid = v->vid; + + entry = sparx5_mdb_get_entry(spx5, v->addr, vid); + if (!entry) + return 0; + + mutex_lock(&spx5->mdb_lock); + if (is_host && entry->cpu_copy) { + sparx5_cpu_copy_ena(spx5, entry->pgid_idx, false); + entry->cpu_copy = false; + } else if (!is_host) { + clear_bit(port->portno, entry->port_mask); + + /* Port not mrouter port or addr is L2 mcast, remove port from mask. */ + if (!port->is_mrouter || !ether_addr_is_ip_mcast(v->addr)) + sparx5_pgid_update_mask(port, entry->pgid_idx, false); + } + mutex_unlock(&spx5->mdb_lock); + + if (bitmap_empty(entry->port_mask, SPX5_PORTS) && !entry->cpu_copy) { + /* Clear pgid in case mrouter ports exists + * that are not part of the group. + */ + sparx5_pgid_clear(spx5, entry->pgid_idx); + sparx5_mact_forget(spx5, entry->addr, entry->vid); + sparx5_free_mdb_entry(spx5, entry->addr, entry->vid); + } + return 0; +} + +static int sparx5_handle_port_obj_add(struct net_device *dev, + struct notifier_block *nb, + struct switchdev_notifier_port_obj_info *info) +{ + const struct switchdev_obj *obj = info->obj; + int err; + + switch (obj->id) { + case SWITCHDEV_OBJ_ID_PORT_VLAN: + err = sparx5_handle_port_vlan_add(dev, nb, + SWITCHDEV_OBJ_PORT_VLAN(obj)); + break; + case SWITCHDEV_OBJ_ID_PORT_MDB: + case SWITCHDEV_OBJ_ID_HOST_MDB: + err = sparx5_handle_port_mdb_add(dev, nb, + SWITCHDEV_OBJ_PORT_MDB(obj)); + break; + default: + err = -EOPNOTSUPP; + break; + } + + info->handled = true; + return err; +} + +static int sparx5_handle_port_vlan_del(struct net_device *dev, + struct notifier_block *nb, + u16 vid) +{ + struct sparx5_port *port = netdev_priv(dev); + int ret; + + /* Master bridge? */ + if (netif_is_bridge_master(dev)) { + struct sparx5 *sparx5 = + container_of(nb, struct sparx5, + switchdev_blocking_nb); + + sparx5_mact_forget(sparx5, dev->broadcast, vid); + return 0; + } + + if (!sparx5_netdevice_check(dev)) + return -EOPNOTSUPP; + + ret = sparx5_vlan_vid_del(port, vid); + if (ret) + return ret; + + return 0; +} + +static int sparx5_handle_port_obj_del(struct net_device *dev, + struct notifier_block *nb, + struct switchdev_notifier_port_obj_info *info) +{ + const struct switchdev_obj *obj = info->obj; + int err; + + switch (obj->id) { + case SWITCHDEV_OBJ_ID_PORT_VLAN: + err = sparx5_handle_port_vlan_del(dev, nb, + SWITCHDEV_OBJ_PORT_VLAN(obj)->vid); + break; + case SWITCHDEV_OBJ_ID_PORT_MDB: + case SWITCHDEV_OBJ_ID_HOST_MDB: + err = sparx5_handle_port_mdb_del(dev, nb, + SWITCHDEV_OBJ_PORT_MDB(obj)); + break; + default: + err = -EOPNOTSUPP; + break; + } + + info->handled = true; + return err; +} + +static int sparx5_switchdev_blocking_event(struct notifier_block *nb, + unsigned long event, + void *ptr) +{ + struct net_device *dev = switchdev_notifier_info_to_dev(ptr); + int err; + + switch (event) { + case SWITCHDEV_PORT_OBJ_ADD: + err = sparx5_handle_port_obj_add(dev, nb, ptr); + return notifier_from_errno(err); + case SWITCHDEV_PORT_OBJ_DEL: + err = sparx5_handle_port_obj_del(dev, nb, ptr); + return notifier_from_errno(err); + case SWITCHDEV_PORT_ATTR_SET: + err = switchdev_handle_port_attr_set(dev, ptr, + sparx5_netdevice_check, + sparx5_port_attr_set); + return notifier_from_errno(err); + } + + return NOTIFY_DONE; +} + +int sparx5_register_notifier_blocks(struct sparx5 *s5) +{ + int err; + + s5->netdevice_nb.notifier_call = sparx5_netdevice_event; + err = register_netdevice_notifier(&s5->netdevice_nb); + if (err) + return err; + + s5->switchdev_nb.notifier_call = sparx5_switchdev_event; + err = register_switchdev_notifier(&s5->switchdev_nb); + if (err) + goto err_switchdev_nb; + + s5->switchdev_blocking_nb.notifier_call = sparx5_switchdev_blocking_event; + err = register_switchdev_blocking_notifier(&s5->switchdev_blocking_nb); + if (err) + goto err_switchdev_blocking_nb; + + sparx5_owq = alloc_ordered_workqueue("sparx5_order", 0); + if (!sparx5_owq) { + err = -ENOMEM; + goto err_switchdev_blocking_nb; + } + + return 0; + +err_switchdev_blocking_nb: + unregister_switchdev_notifier(&s5->switchdev_nb); +err_switchdev_nb: + unregister_netdevice_notifier(&s5->netdevice_nb); + + return err; +} + +void sparx5_unregister_notifier_blocks(struct sparx5 *s5) +{ + destroy_workqueue(sparx5_owq); + + unregister_switchdev_blocking_notifier(&s5->switchdev_blocking_nb); + unregister_switchdev_notifier(&s5->switchdev_nb); + unregister_netdevice_notifier(&s5->netdevice_nb); +} |