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author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2021-10-26 17:27:43 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2021-10-27 16:54:02 +0300 |
commit | 716a30a97a52aa78afd70db48d522855f624e7e0 (patch) | |
tree | 49440eaf875e1aa36de3dca0df5d0b511841a4c4 /net/switchdev | |
parent | fab9eca88410ddd22e4c4bb275849b8327b49a60 (diff) | |
download | linux-716a30a97a52aa78afd70db48d522855f624e7e0.tar.xz |
net: switchdev: merge switchdev_handle_fdb_{add,del}_to_device
To reduce code churn, the same patch makes multiple changes, since they
all touch the same lines:
1. The implementations for these two are identical, just with different
function pointers. Reduce duplications and name the function pointers
"mod_cb" instead of "add_cb" and "del_cb". Pass the event as argument.
2. Drop the "const" attribute from "orig_dev". If the driver needs to
check whether orig_dev belongs to itself and then
call_switchdev_notifiers(orig_dev, SWITCHDEV_FDB_OFFLOADED), it
can't, because call_switchdev_notifiers takes a non-const struct
net_device *.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/switchdev')
-rw-r--r-- | net/switchdev/switchdev.c | 156 |
1 files changed, 25 insertions, 131 deletions
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c index 0b2c18efc079..83460470e883 100644 --- a/net/switchdev/switchdev.c +++ b/net/switchdev/switchdev.c @@ -428,17 +428,17 @@ switchdev_lower_dev_find(struct net_device *dev, return switchdev_priv.lower_dev; } -static int __switchdev_handle_fdb_add_to_device(struct net_device *dev, - const struct net_device *orig_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 (*add_cb)(struct net_device *dev, - const struct net_device *orig_dev, const void *ctx, + 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 (*lag_add_cb)(struct net_device *dev, - const struct net_device *orig_dev, const void *ctx, + int (*lag_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; @@ -447,17 +447,17 @@ static int __switchdev_handle_fdb_add_to_device(struct net_device *dev, int err = -EOPNOTSUPP; if (check_cb(dev)) - return add_cb(dev, orig_dev, info->ctx, fdb_info); + return mod_cb(dev, orig_dev, event, info->ctx, fdb_info); if (netif_is_lag_master(dev)) { if (!switchdev_lower_dev_find(dev, check_cb, foreign_dev_check_cb)) goto maybe_bridged_with_us; /* This is a LAG interface that we offload */ - if (!lag_add_cb) + if (!lag_mod_cb) return -EOPNOTSUPP; - return lag_add_cb(dev, orig_dev, info->ctx, fdb_info); + return lag_mod_cb(dev, orig_dev, event, info->ctx, fdb_info); } /* Recurse through lower interfaces in case the FDB entry is pointing @@ -481,10 +481,10 @@ static int __switchdev_handle_fdb_add_to_device(struct net_device *dev, foreign_dev_check_cb)) continue; - err = __switchdev_handle_fdb_add_to_device(lower_dev, orig_dev, - fdb_info, check_cb, - foreign_dev_check_cb, - add_cb, lag_add_cb); + err = __switchdev_handle_fdb_event_to_device(lower_dev, orig_dev, + event, fdb_info, check_cb, + foreign_dev_check_cb, + mod_cb, lag_mod_cb); if (err && err != -EOPNOTSUPP) return err; } @@ -503,140 +503,34 @@ maybe_bridged_with_us: if (!switchdev_lower_dev_find(br, check_cb, foreign_dev_check_cb)) return 0; - return __switchdev_handle_fdb_add_to_device(br, orig_dev, fdb_info, - check_cb, foreign_dev_check_cb, - add_cb, lag_add_cb); + return __switchdev_handle_fdb_event_to_device(br, orig_dev, event, fdb_info, + check_cb, foreign_dev_check_cb, + mod_cb, lag_mod_cb); } -int switchdev_handle_fdb_add_to_device(struct net_device *dev, +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 (*add_cb)(struct net_device *dev, - const struct net_device *orig_dev, const void *ctx, + 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 (*lag_add_cb)(struct net_device *dev, - const struct net_device *orig_dev, const void *ctx, + int (*lag_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_add_to_device(dev, dev, fdb_info, - check_cb, - foreign_dev_check_cb, - add_cb, lag_add_cb); + err = __switchdev_handle_fdb_event_to_device(dev, dev, event, fdb_info, + check_cb, foreign_dev_check_cb, + mod_cb, lag_mod_cb); if (err == -EOPNOTSUPP) err = 0; return err; } -EXPORT_SYMBOL_GPL(switchdev_handle_fdb_add_to_device); - -static int __switchdev_handle_fdb_del_to_device(struct net_device *dev, - const struct net_device *orig_dev, - 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 (*del_cb)(struct net_device *dev, - const struct net_device *orig_dev, const void *ctx, - const struct switchdev_notifier_fdb_info *fdb_info), - int (*lag_del_cb)(struct net_device *dev, - const struct net_device *orig_dev, 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; - struct list_head *iter; - int err = -EOPNOTSUPP; - - if (check_cb(dev)) - return del_cb(dev, orig_dev, info->ctx, fdb_info); - - if (netif_is_lag_master(dev)) { - if (!switchdev_lower_dev_find(dev, check_cb, foreign_dev_check_cb)) - goto maybe_bridged_with_us; - - /* This is a LAG interface that we offload */ - if (!lag_del_cb) - return -EOPNOTSUPP; - - return lag_del_cb(dev, orig_dev, info->ctx, fdb_info); - } - - /* Recurse through lower interfaces in case the FDB entry is pointing - * towards a bridge device. - */ - if (netif_is_bridge_master(dev)) { - if (!switchdev_lower_dev_find(dev, check_cb, foreign_dev_check_cb)) - return 0; - - /* This is a bridge interface that we offload */ - 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(lower_dev, check_cb, - foreign_dev_check_cb)) - continue; - - err = __switchdev_handle_fdb_del_to_device(lower_dev, orig_dev, - fdb_info, check_cb, - foreign_dev_check_cb, - del_cb, lag_del_cb); - if (err && err != -EOPNOTSUPP) - return err; - } - - return 0; - } - -maybe_bridged_with_us: - /* 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; - - if (!switchdev_lower_dev_find(br, check_cb, foreign_dev_check_cb)) - return 0; - - return __switchdev_handle_fdb_del_to_device(br, orig_dev, fdb_info, - check_cb, foreign_dev_check_cb, - del_cb, lag_del_cb); -} - -int switchdev_handle_fdb_del_to_device(struct net_device *dev, - 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 (*del_cb)(struct net_device *dev, - const struct net_device *orig_dev, const void *ctx, - const struct switchdev_notifier_fdb_info *fdb_info), - int (*lag_del_cb)(struct net_device *dev, - const struct net_device *orig_dev, const void *ctx, - const struct switchdev_notifier_fdb_info *fdb_info)) -{ - int err; - - err = __switchdev_handle_fdb_del_to_device(dev, dev, fdb_info, - check_cb, - foreign_dev_check_cb, - del_cb, lag_del_cb); - if (err == -EOPNOTSUPP) - err = 0; - - return err; -} -EXPORT_SYMBOL_GPL(switchdev_handle_fdb_del_to_device); +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, |