diff options
Diffstat (limited to 'net/switchdev')
| -rw-r--r-- | net/switchdev/Kconfig | 2 | ||||
| -rw-r--r-- | net/switchdev/Makefile | 2 | ||||
| -rw-r--r-- | net/switchdev/switchdev.c | 499 |
3 files changed, 382 insertions, 121 deletions
diff --git a/net/switchdev/Kconfig b/net/switchdev/Kconfig index 50f21a657007..18a2d980e11d 100644 --- a/net/switchdev/Kconfig +++ b/net/switchdev/Kconfig @@ -6,7 +6,7 @@ config NET_SWITCHDEV bool "Switch (and switch-ish) device support" depends on INET - ---help--- + help This module provides glue between core networking code and device drivers in order to support hardware switch chips in very generic meaning of the word "switch". This include devices supporting L2/L3 but diff --git a/net/switchdev/Makefile b/net/switchdev/Makefile index bd69a3136e76..c5561d7f3a7c 100644 --- a/net/switchdev/Makefile +++ b/net/switchdev/Makefile @@ -3,4 +3,4 @@ # Makefile for the Switch device API # -obj-$(CONFIG_NET_SWITCHDEV) += switchdev.o +obj-y += switchdev.o diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c index 3a1d428c1336..8cc42aea19c7 100644 --- a/net/switchdev/switchdev.c +++ b/net/switchdev/switchdev.c @@ -28,8 +28,9 @@ typedef void switchdev_deferred_func_t(struct net_device *dev, struct switchdev_deferred_item { struct list_head list; struct net_device *dev; + netdevice_tracker dev_tracker; switchdev_deferred_func_t *func; - unsigned long data[0]; + unsigned long data[]; }; static struct switchdev_deferred_item *switchdev_deferred_dequeue(void) @@ -63,7 +64,7 @@ void switchdev_deferred_process(void) while ((dfitem = switchdev_deferred_dequeue())) { dfitem->func(dfitem->dev, dfitem->data); - dev_put(dfitem->dev); + netdev_put(dfitem->dev, &dfitem->dev_tracker); kfree(dfitem); } } @@ -84,13 +85,13 @@ static int switchdev_deferred_enqueue(struct net_device *dev, { struct switchdev_deferred_item *dfitem; - dfitem = kmalloc(sizeof(*dfitem) + data_len, GFP_ATOMIC); + dfitem = kmalloc(struct_size(dfitem, data, data_len), GFP_ATOMIC); if (!dfitem) return -ENOMEM; dfitem->dev = dev; dfitem->func = func; memcpy(dfitem->data, data, data_len); - dev_hold(dev); + netdev_hold(dev, &dfitem->dev_tracker, GFP_ATOMIC); spin_lock_bh(&deferred_lock); list_add_tail(&dfitem->list, &deferred); spin_unlock_bh(&deferred_lock); @@ -101,19 +102,18 @@ static int switchdev_deferred_enqueue(struct net_device *dev, static int switchdev_port_attr_notify(enum switchdev_notifier_type nt, struct net_device *dev, const struct switchdev_attr *attr, - struct switchdev_trans *trans) + struct netlink_ext_ack *extack) { int err; int rc; struct switchdev_notifier_port_attr_info attr_info = { .attr = attr, - .trans = trans, .handled = false, }; rc = call_switchdev_blocking_notifiers(nt, dev, - &attr_info.info, NULL); + &attr_info.info, extack); err = notifier_to_errno(rc); if (err) { WARN_ON(!attr_info.handled); @@ -127,36 +127,11 @@ static int switchdev_port_attr_notify(enum switchdev_notifier_type nt, } static int switchdev_port_attr_set_now(struct net_device *dev, - const struct switchdev_attr *attr) + const struct switchdev_attr *attr, + struct netlink_ext_ack *extack) { - struct switchdev_trans trans; - int err; - - /* Phase I: prepare for attr set. Driver/device should fail - * here if there are going to be issues in the commit phase, - * such as lack of resources or support. The driver/device - * should reserve resources needed for the commit phase here, - * but should not commit the attr. - */ - - trans.ph_prepare = true; - err = switchdev_port_attr_notify(SWITCHDEV_PORT_ATTR_SET, dev, attr, - &trans); - if (err) - return err; - - /* Phase II: commit attr set. This cannot fail as a fault - * of driver/device. If it does, it's a bug in the driver/device - * because the driver said everythings was OK in phase I. - */ - - trans.ph_prepare = false; - err = switchdev_port_attr_notify(SWITCHDEV_PORT_ATTR_SET, dev, attr, - &trans); - WARN(err, "%s: Commit of attribute (id=%d) failed.\n", - dev->name, attr->id); - - return err; + return switchdev_port_attr_notify(SWITCHDEV_PORT_ATTR_SET, dev, attr, + extack); } static void switchdev_port_attr_set_deferred(struct net_device *dev, @@ -165,7 +140,7 @@ static void switchdev_port_attr_set_deferred(struct net_device *dev, const struct switchdev_attr *attr = data; int err; - err = switchdev_port_attr_set_now(dev, attr); + err = switchdev_port_attr_set_now(dev, attr, NULL); if (err && err != -EOPNOTSUPP) netdev_err(dev, "failed (err=%d) to set attribute (id=%d)\n", err, attr->id); @@ -185,21 +160,19 @@ static int switchdev_port_attr_set_defer(struct net_device *dev, * * @dev: port device * @attr: attribute to set - * - * Use a 2-phase prepare-commit transaction model to ensure - * system is not left in a partially updated state due to - * failure from driver/device. + * @extack: netlink extended ack, for error message propagation * * rtnl_lock must be held and must not be in atomic section, * in case SWITCHDEV_F_DEFER flag is not set. */ int switchdev_port_attr_set(struct net_device *dev, - const struct switchdev_attr *attr) + const struct switchdev_attr *attr, + struct netlink_ext_ack *extack) { if (attr->flags & SWITCHDEV_F_DEFER) return switchdev_port_attr_set_defer(dev, attr); ASSERT_RTNL(); - return switchdev_port_attr_set_now(dev, attr); + return switchdev_port_attr_set_now(dev, attr, extack); } EXPORT_SYMBOL_GPL(switchdev_port_attr_set); @@ -221,7 +194,6 @@ static size_t switchdev_obj_size(const struct switchdev_obj *obj) static int switchdev_port_obj_notify(enum switchdev_notifier_type nt, struct net_device *dev, const struct switchdev_obj *obj, - struct switchdev_trans *trans, struct netlink_ext_ack *extack) { int rc; @@ -229,7 +201,6 @@ static int switchdev_port_obj_notify(enum switchdev_notifier_type nt, struct switchdev_notifier_port_obj_info obj_info = { .obj = obj, - .trans = trans, .handled = false, }; @@ -244,48 +215,15 @@ static int switchdev_port_obj_notify(enum switchdev_notifier_type nt, return 0; } -static int switchdev_port_obj_add_now(struct net_device *dev, - const struct switchdev_obj *obj, - struct netlink_ext_ack *extack) -{ - struct switchdev_trans trans; - int err; - - ASSERT_RTNL(); - - /* Phase I: prepare for obj add. Driver/device should fail - * here if there are going to be issues in the commit phase, - * such as lack of resources or support. The driver/device - * should reserve resources needed for the commit phase here, - * but should not commit the obj. - */ - - trans.ph_prepare = true; - err = switchdev_port_obj_notify(SWITCHDEV_PORT_OBJ_ADD, - dev, obj, &trans, extack); - if (err) - return err; - - /* Phase II: commit obj add. This cannot fail as a fault - * of driver/device. If it does, it's a bug in the driver/device - * because the driver said everythings was OK in phase I. - */ - - trans.ph_prepare = false; - err = switchdev_port_obj_notify(SWITCHDEV_PORT_OBJ_ADD, - dev, obj, &trans, extack); - WARN(err, "%s: Commit of object (id=%d) failed.\n", dev->name, obj->id); - - return err; -} - static void switchdev_port_obj_add_deferred(struct net_device *dev, const void *data) { const struct switchdev_obj *obj = data; int err; - err = switchdev_port_obj_add_now(dev, obj, NULL); + ASSERT_RTNL(); + err = switchdev_port_obj_notify(SWITCHDEV_PORT_OBJ_ADD, + dev, obj, NULL); if (err && err != -EOPNOTSUPP) netdev_err(dev, "failed (err=%d) to add object (id=%d)\n", err, obj->id); @@ -304,12 +242,8 @@ static int switchdev_port_obj_add_defer(struct net_device *dev, * switchdev_port_obj_add - Add port object * * @dev: port device - * @id: object ID * @obj: object to add - * - * Use a 2-phase prepare-commit transaction model to ensure - * system is not left in a partially updated state due to - * failure from driver/device. + * @extack: netlink extended ack * * rtnl_lock must be held and must not be in atomic section, * in case SWITCHDEV_F_DEFER flag is not set. @@ -321,7 +255,8 @@ int switchdev_port_obj_add(struct net_device *dev, if (obj->flags & SWITCHDEV_F_DEFER) return switchdev_port_obj_add_defer(dev, obj); ASSERT_RTNL(); - return switchdev_port_obj_add_now(dev, obj, extack); + return switchdev_port_obj_notify(SWITCHDEV_PORT_OBJ_ADD, + dev, obj, extack); } EXPORT_SYMBOL_GPL(switchdev_port_obj_add); @@ -329,7 +264,7 @@ static int switchdev_port_obj_del_now(struct net_device *dev, const struct switchdev_obj *obj) { return switchdev_port_obj_notify(SWITCHDEV_PORT_OBJ_DEL, - dev, obj, NULL, NULL); + dev, obj, NULL); } static void switchdev_port_obj_del_deferred(struct net_device *dev, @@ -357,7 +292,6 @@ static int switchdev_port_obj_del_defer(struct net_device *dev, * switchdev_port_obj_del - Delete port object * * @dev: port device - * @id: object ID * @obj: object to delete * * rtnl_lock must be held and must not be in atomic section, @@ -405,7 +339,7 @@ EXPORT_SYMBOL_GPL(unregister_switchdev_notifier); * @val: value passed unmodified to notifier function * @dev: port device * @info: notifier information data - * + * @extack: netlink extended ack * Call all network notifier blocks. */ int call_switchdev_notifiers(unsigned long val, struct net_device *dev, @@ -445,26 +379,181 @@ int call_switchdev_blocking_notifiers(unsigned long val, struct net_device *dev, } EXPORT_SYMBOL_GPL(call_switchdev_blocking_notifiers); +struct switchdev_nested_priv { + bool (*check_cb)(const struct net_device *dev); + bool (*foreign_dev_check_cb)(const struct net_device *dev, + const struct net_device *foreign_dev); + const struct net_device *dev; + struct net_device *lower_dev; +}; + +static int switchdev_lower_dev_walk(struct net_device *lower_dev, + struct netdev_nested_priv *priv) +{ + struct switchdev_nested_priv *switchdev_priv = priv->data; + bool (*foreign_dev_check_cb)(const struct net_device *dev, + const struct net_device *foreign_dev); + bool (*check_cb)(const struct net_device *dev); + const struct net_device *dev; + + check_cb = switchdev_priv->check_cb; + foreign_dev_check_cb = switchdev_priv->foreign_dev_check_cb; + dev = switchdev_priv->dev; + + if (check_cb(lower_dev) && !foreign_dev_check_cb(lower_dev, dev)) { + switchdev_priv->lower_dev = lower_dev; + return 1; + } + + return 0; +} + +static struct net_device * +switchdev_lower_dev_find_rcu(struct net_device *dev, + bool (*check_cb)(const struct net_device *dev), + bool (*foreign_dev_check_cb)(const struct net_device *dev, + const struct net_device *foreign_dev)) +{ + struct switchdev_nested_priv switchdev_priv = { + .check_cb = check_cb, + .foreign_dev_check_cb = foreign_dev_check_cb, + .dev = dev, + .lower_dev = NULL, + }; + struct netdev_nested_priv priv = { + .data = &switchdev_priv, + }; + + netdev_walk_all_lower_dev_rcu(dev, switchdev_lower_dev_walk, &priv); + + return switchdev_priv.lower_dev; +} + +static struct net_device * +switchdev_lower_dev_find(struct net_device *dev, + bool (*check_cb)(const struct net_device *dev), + bool (*foreign_dev_check_cb)(const struct net_device *dev, + const struct net_device *foreign_dev)) +{ + struct switchdev_nested_priv switchdev_priv = { + .check_cb = check_cb, + .foreign_dev_check_cb = foreign_dev_check_cb, + .dev = dev, + .lower_dev = NULL, + }; + struct netdev_nested_priv priv = { + .data = &switchdev_priv, + }; + + netdev_walk_all_lower_dev(dev, switchdev_lower_dev_walk, &priv); + + return switchdev_priv.lower_dev; +} + +static int __switchdev_handle_fdb_event_to_device(struct net_device *dev, + struct net_device *orig_dev, unsigned long event, + const struct switchdev_notifier_fdb_info *fdb_info, + bool (*check_cb)(const struct net_device *dev), + bool (*foreign_dev_check_cb)(const struct net_device *dev, + const struct net_device *foreign_dev), + int (*mod_cb)(struct net_device *dev, struct net_device *orig_dev, + unsigned long event, const void *ctx, + const struct switchdev_notifier_fdb_info *fdb_info)) +{ + const struct switchdev_notifier_info *info = &fdb_info->info; + struct net_device *br, *lower_dev, *switchdev; + struct list_head *iter; + int err = -EOPNOTSUPP; + + if (check_cb(dev)) + return mod_cb(dev, orig_dev, event, info->ctx, fdb_info); + + /* Recurse through lower interfaces in case the FDB entry is pointing + * towards a bridge or a LAG device. + */ + netdev_for_each_lower_dev(dev, lower_dev, iter) { + /* Do not propagate FDB entries across bridges */ + if (netif_is_bridge_master(lower_dev)) + continue; + + /* Bridge ports might be either us, or LAG interfaces + * that we offload. + */ + if (!check_cb(lower_dev) && + !switchdev_lower_dev_find_rcu(lower_dev, check_cb, + foreign_dev_check_cb)) + continue; + + err = __switchdev_handle_fdb_event_to_device(lower_dev, orig_dev, + event, fdb_info, check_cb, + foreign_dev_check_cb, + mod_cb); + if (err && err != -EOPNOTSUPP) + return err; + } + + /* Event is neither on a bridge nor a LAG. Check whether it is on an + * interface that is in a bridge with us. + */ + br = netdev_master_upper_dev_get_rcu(dev); + if (!br || !netif_is_bridge_master(br)) + return 0; + + switchdev = switchdev_lower_dev_find_rcu(br, check_cb, foreign_dev_check_cb); + if (!switchdev) + return 0; + + if (!foreign_dev_check_cb(switchdev, dev)) + return err; + + return __switchdev_handle_fdb_event_to_device(br, orig_dev, event, fdb_info, + check_cb, foreign_dev_check_cb, + mod_cb); +} + +int switchdev_handle_fdb_event_to_device(struct net_device *dev, unsigned long event, + const struct switchdev_notifier_fdb_info *fdb_info, + bool (*check_cb)(const struct net_device *dev), + bool (*foreign_dev_check_cb)(const struct net_device *dev, + const struct net_device *foreign_dev), + int (*mod_cb)(struct net_device *dev, struct net_device *orig_dev, + unsigned long event, const void *ctx, + const struct switchdev_notifier_fdb_info *fdb_info)) +{ + int err; + + err = __switchdev_handle_fdb_event_to_device(dev, dev, event, fdb_info, + check_cb, foreign_dev_check_cb, + mod_cb); + if (err == -EOPNOTSUPP) + err = 0; + + return err; +} +EXPORT_SYMBOL_GPL(switchdev_handle_fdb_event_to_device); + static int __switchdev_handle_port_obj_add(struct net_device *dev, struct switchdev_notifier_port_obj_info *port_obj_info, bool (*check_cb)(const struct net_device *dev), - int (*add_cb)(struct net_device *dev, + bool (*foreign_dev_check_cb)(const struct net_device *dev, + const struct net_device *foreign_dev), + int (*add_cb)(struct net_device *dev, const void *ctx, const struct switchdev_obj *obj, - struct switchdev_trans *trans, struct netlink_ext_ack *extack)) { + struct switchdev_notifier_info *info = &port_obj_info->info; + struct net_device *br, *lower_dev, *switchdev; struct netlink_ext_ack *extack; - struct net_device *lower_dev; struct list_head *iter; int err = -EOPNOTSUPP; - extack = switchdev_notifier_info_to_extack(&port_obj_info->info); + extack = switchdev_notifier_info_to_extack(info); if (check_cb(dev)) { - /* This flag is only checked if the return value is success. */ - port_obj_info->handled = true; - return add_cb(dev, port_obj_info->obj, port_obj_info->trans, - extack); + err = add_cb(dev, info->ctx, port_obj_info->obj, extack); + if (err != -EOPNOTSUPP) + port_obj_info->handled = true; + return err; } /* Switch ports might be stacked under e.g. a LAG. Ignore the @@ -475,47 +564,107 @@ static int __switchdev_handle_port_obj_add(struct net_device *dev, * necessary to go through this helper. */ netdev_for_each_lower_dev(dev, lower_dev, iter) { + if (netif_is_bridge_master(lower_dev)) + continue; + + /* When searching for switchdev interfaces that are neighbors + * of foreign ones, and @dev is a bridge, do not recurse on the + * foreign interface again, it was already visited. + */ + if (foreign_dev_check_cb && !check_cb(lower_dev) && + !switchdev_lower_dev_find(lower_dev, check_cb, foreign_dev_check_cb)) + continue; + err = __switchdev_handle_port_obj_add(lower_dev, port_obj_info, - check_cb, add_cb); + check_cb, foreign_dev_check_cb, + add_cb); if (err && err != -EOPNOTSUPP) return err; } - return err; + /* Event is neither on a bridge nor a LAG. Check whether it is on an + * interface that is in a bridge with us. + */ + if (!foreign_dev_check_cb) + return err; + + br = netdev_master_upper_dev_get(dev); + if (!br || !netif_is_bridge_master(br)) + return err; + + switchdev = switchdev_lower_dev_find(br, check_cb, foreign_dev_check_cb); + if (!switchdev) + return err; + + if (!foreign_dev_check_cb(switchdev, dev)) + return err; + + return __switchdev_handle_port_obj_add(br, port_obj_info, check_cb, + foreign_dev_check_cb, add_cb); } +/* Pass through a port object addition, if @dev passes @check_cb, or replicate + * it towards all lower interfaces of @dev that pass @check_cb, if @dev is a + * bridge or a LAG. + */ int switchdev_handle_port_obj_add(struct net_device *dev, struct switchdev_notifier_port_obj_info *port_obj_info, bool (*check_cb)(const struct net_device *dev), - int (*add_cb)(struct net_device *dev, + int (*add_cb)(struct net_device *dev, const void *ctx, const struct switchdev_obj *obj, - struct switchdev_trans *trans, struct netlink_ext_ack *extack)) { int err; err = __switchdev_handle_port_obj_add(dev, port_obj_info, check_cb, - add_cb); + NULL, add_cb); if (err == -EOPNOTSUPP) err = 0; return err; } EXPORT_SYMBOL_GPL(switchdev_handle_port_obj_add); +/* Same as switchdev_handle_port_obj_add(), except if object is notified on a + * @dev that passes @foreign_dev_check_cb, it is replicated towards all devices + * that pass @check_cb and are in the same bridge as @dev. + */ +int switchdev_handle_port_obj_add_foreign(struct net_device *dev, + struct switchdev_notifier_port_obj_info *port_obj_info, + bool (*check_cb)(const struct net_device *dev), + bool (*foreign_dev_check_cb)(const struct net_device *dev, + const struct net_device *foreign_dev), + int (*add_cb)(struct net_device *dev, const void *ctx, + const struct switchdev_obj *obj, + struct netlink_ext_ack *extack)) +{ + int err; + + err = __switchdev_handle_port_obj_add(dev, port_obj_info, check_cb, + foreign_dev_check_cb, add_cb); + if (err == -EOPNOTSUPP) + err = 0; + return err; +} +EXPORT_SYMBOL_GPL(switchdev_handle_port_obj_add_foreign); + static int __switchdev_handle_port_obj_del(struct net_device *dev, struct switchdev_notifier_port_obj_info *port_obj_info, bool (*check_cb)(const struct net_device *dev), - int (*del_cb)(struct net_device *dev, + bool (*foreign_dev_check_cb)(const struct net_device *dev, + const struct net_device *foreign_dev), + int (*del_cb)(struct net_device *dev, const void *ctx, const struct switchdev_obj *obj)) { - struct net_device *lower_dev; + struct switchdev_notifier_info *info = &port_obj_info->info; + struct net_device *br, *lower_dev, *switchdev; struct list_head *iter; int err = -EOPNOTSUPP; if (check_cb(dev)) { - /* This flag is only checked if the return value is success. */ - port_obj_info->handled = true; - return del_cb(dev, port_obj_info->obj); + err = del_cb(dev, info->ctx, port_obj_info->obj); + if (err != -EOPNOTSUPP) + port_obj_info->handled = true; + return err; } /* Switch ports might be stacked under e.g. a LAG. Ignore the @@ -526,46 +675,107 @@ static int __switchdev_handle_port_obj_del(struct net_device *dev, * necessary to go through this helper. */ netdev_for_each_lower_dev(dev, lower_dev, iter) { + if (netif_is_bridge_master(lower_dev)) + continue; + + /* When searching for switchdev interfaces that are neighbors + * of foreign ones, and @dev is a bridge, do not recurse on the + * foreign interface again, it was already visited. + */ + if (foreign_dev_check_cb && !check_cb(lower_dev) && + !switchdev_lower_dev_find(lower_dev, check_cb, foreign_dev_check_cb)) + continue; + err = __switchdev_handle_port_obj_del(lower_dev, port_obj_info, - check_cb, del_cb); + check_cb, foreign_dev_check_cb, + del_cb); if (err && err != -EOPNOTSUPP) return err; } - return err; + /* Event is neither on a bridge nor a LAG. Check whether it is on an + * interface that is in a bridge with us. + */ + if (!foreign_dev_check_cb) + return err; + + br = netdev_master_upper_dev_get(dev); + if (!br || !netif_is_bridge_master(br)) + return err; + + switchdev = switchdev_lower_dev_find(br, check_cb, foreign_dev_check_cb); + if (!switchdev) + return err; + + if (!foreign_dev_check_cb(switchdev, dev)) + return err; + + return __switchdev_handle_port_obj_del(br, port_obj_info, check_cb, + foreign_dev_check_cb, del_cb); } +/* Pass through a port object deletion, if @dev passes @check_cb, or replicate + * it towards all lower interfaces of @dev that pass @check_cb, if @dev is a + * bridge or a LAG. + */ int switchdev_handle_port_obj_del(struct net_device *dev, struct switchdev_notifier_port_obj_info *port_obj_info, bool (*check_cb)(const struct net_device *dev), - int (*del_cb)(struct net_device *dev, + int (*del_cb)(struct net_device *dev, const void *ctx, const struct switchdev_obj *obj)) { int err; err = __switchdev_handle_port_obj_del(dev, port_obj_info, check_cb, - del_cb); + NULL, del_cb); if (err == -EOPNOTSUPP) err = 0; return err; } EXPORT_SYMBOL_GPL(switchdev_handle_port_obj_del); +/* Same as switchdev_handle_port_obj_del(), except if object is notified on a + * @dev that passes @foreign_dev_check_cb, it is replicated towards all devices + * that pass @check_cb and are in the same bridge as @dev. + */ +int switchdev_handle_port_obj_del_foreign(struct net_device *dev, + struct switchdev_notifier_port_obj_info *port_obj_info, + bool (*check_cb)(const struct net_device *dev), + bool (*foreign_dev_check_cb)(const struct net_device *dev, + const struct net_device *foreign_dev), + int (*del_cb)(struct net_device *dev, const void *ctx, + const struct switchdev_obj *obj)) +{ + int err; + + err = __switchdev_handle_port_obj_del(dev, port_obj_info, check_cb, + foreign_dev_check_cb, del_cb); + if (err == -EOPNOTSUPP) + err = 0; + return err; +} +EXPORT_SYMBOL_GPL(switchdev_handle_port_obj_del_foreign); + static int __switchdev_handle_port_attr_set(struct net_device *dev, struct switchdev_notifier_port_attr_info *port_attr_info, bool (*check_cb)(const struct net_device *dev), - int (*set_cb)(struct net_device *dev, + int (*set_cb)(struct net_device *dev, const void *ctx, const struct switchdev_attr *attr, - struct switchdev_trans *trans)) + struct netlink_ext_ack *extack)) { + struct switchdev_notifier_info *info = &port_attr_info->info; + struct netlink_ext_ack *extack; struct net_device *lower_dev; struct list_head *iter; int err = -EOPNOTSUPP; + extack = switchdev_notifier_info_to_extack(info); + if (check_cb(dev)) { - port_attr_info->handled = true; - return set_cb(dev, port_attr_info->attr, - port_attr_info->trans); + err = set_cb(dev, info->ctx, port_attr_info->attr, extack); + if (err != -EOPNOTSUPP) + port_attr_info->handled = true; + return err; } /* Switch ports might be stacked under e.g. a LAG. Ignore the @@ -576,6 +786,9 @@ static int __switchdev_handle_port_attr_set(struct net_device *dev, * necessary to go through this helper. */ netdev_for_each_lower_dev(dev, lower_dev, iter) { + if (netif_is_bridge_master(lower_dev)) + continue; + err = __switchdev_handle_port_attr_set(lower_dev, port_attr_info, check_cb, set_cb); if (err && err != -EOPNOTSUPP) @@ -588,9 +801,9 @@ static int __switchdev_handle_port_attr_set(struct net_device *dev, int switchdev_handle_port_attr_set(struct net_device *dev, struct switchdev_notifier_port_attr_info *port_attr_info, bool (*check_cb)(const struct net_device *dev), - int (*set_cb)(struct net_device *dev, + int (*set_cb)(struct net_device *dev, const void *ctx, const struct switchdev_attr *attr, - struct switchdev_trans *trans)) + struct netlink_ext_ack *extack)) { int err; @@ -601,3 +814,51 @@ int switchdev_handle_port_attr_set(struct net_device *dev, return err; } EXPORT_SYMBOL_GPL(switchdev_handle_port_attr_set); + +int switchdev_bridge_port_offload(struct net_device *brport_dev, + struct net_device *dev, const void *ctx, + struct notifier_block *atomic_nb, + struct notifier_block *blocking_nb, + bool tx_fwd_offload, + struct netlink_ext_ack *extack) +{ + struct switchdev_notifier_brport_info brport_info = { + .brport = { + .dev = dev, + .ctx = ctx, + .atomic_nb = atomic_nb, + .blocking_nb = blocking_nb, + .tx_fwd_offload = tx_fwd_offload, + }, + }; + int err; + + ASSERT_RTNL(); + + err = call_switchdev_blocking_notifiers(SWITCHDEV_BRPORT_OFFLOADED, + brport_dev, &brport_info.info, + extack); + return notifier_to_errno(err); +} +EXPORT_SYMBOL_GPL(switchdev_bridge_port_offload); + +void switchdev_bridge_port_unoffload(struct net_device *brport_dev, + const void *ctx, + struct notifier_block *atomic_nb, + struct notifier_block *blocking_nb) +{ + struct switchdev_notifier_brport_info brport_info = { + .brport = { + .ctx = ctx, + .atomic_nb = atomic_nb, + .blocking_nb = blocking_nb, + }, + }; + + ASSERT_RTNL(); + + call_switchdev_blocking_notifiers(SWITCHDEV_BRPORT_UNOFFLOADED, + brport_dev, &brport_info.info, + NULL); +} +EXPORT_SYMBOL_GPL(switchdev_bridge_port_unoffload); |