Re: [PATCH V3 net-next 2/4] net: switchdev: add support for offloading of fdb locked flag
From: Vladimir Oltean <olteanv@gmail.com>
Date: 2022-06-27 16:06:48
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On Tue, May 24, 2022 at 05:21:42PM +0200, Hans Schultz wrote:
quoted hunk ↗ jump to hunk
Used for Mac-auth/MAB feature in the offloaded case. Signed-off-by: Hans Schultz <redacted> --- include/net/dsa.h | 6 ++++++ include/net/switchdev.h | 3 ++- net/bridge/br.c | 3 ++- net/bridge/br_fdb.c | 7 +++++-- net/bridge/br_private.h | 2 +- 5 files changed, 16 insertions(+), 5 deletions(-)diff --git a/include/net/dsa.h b/include/net/dsa.h index 14f07275852b..a5a843b2d67d 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h@@ -330,6 +330,12 @@ struct dsa_port { /* List of VLANs that CPU and DSA ports are members of. */ struct mutex vlans_lock; struct list_head vlans; + + /* List and maintenance of locked ATU entries */ + struct mutex locked_entries_list_lock; + struct list_head atu_locked_entries_list; + atomic_t atu_locked_entry_cnt; + struct delayed_work atu_work;
DSA is not Marvell only, so please remove these from struct dsa_port and place them somewhere like struct mv88e6xxx_port. Also, the change has nothing to do in a patch with the "net: switchdev: " prefix.
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}; /* TODO: ideally DSA ports would have a single dp->link_dp member,diff --git a/include/net/switchdev.h b/include/net/switchdev.h index aa0171d5786d..62f4f7c9c7c2 100644 --- a/include/net/switchdev.h +++ b/include/net/switchdev.h@@ -245,7 +245,8 @@ struct switchdev_notifier_fdb_info { u16 vid; u8 added_by_user:1, is_local:1, - offloaded:1; + offloaded:1, + locked:1;
As mentioned by Ido, please update br_switchdev_fdb_populate() as part of this change, in the bridge->switchdev direction. We should add a comment near struct switchdev_notifier_fdb_info stating just that, so that people don't forget.
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}; struct switchdev_notifier_port_obj_info {diff --git a/net/bridge/br.c b/net/bridge/br.c index 96e91d69a9a8..12933388a5a4 100644 --- a/net/bridge/br.c +++ b/net/bridge/br.c@@ -166,7 +166,8 @@ static int br_switchdev_event(struct notifier_block *unused, case SWITCHDEV_FDB_ADD_TO_BRIDGE: fdb_info = ptr; err = br_fdb_external_learn_add(br, p, fdb_info->addr, - fdb_info->vid, false); + fdb_info->vid, false, + fdb_info->locked); if (err) { err = notifier_from_errno(err); break;diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index 6b83e2d6435d..92469547283a 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c@@ -1135,7 +1135,7 @@ static int __br_fdb_add(struct ndmsg *ndm, struct net_bridge *br, "FDB entry towards bridge must be permanent"); return -EINVAL; } - err = br_fdb_external_learn_add(br, p, addr, vid, true); + err = br_fdb_external_learn_add(br, p, addr, vid, true, false); } else { spin_lock_bh(&br->hash_lock); err = fdb_add_entry(br, p, addr, ndm, nlh_flags, vid, nfea_tb);@@ -1365,7 +1365,7 @@ void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p) int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, const unsigned char *addr, u16 vid, - bool swdev_notify) + bool swdev_notify, bool locked) { struct net_bridge_fdb_entry *fdb; bool modified = false;@@ -1385,6 +1385,9 @@ int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, if (!p) flags |= BIT(BR_FDB_LOCAL); + if (locked) + flags |= BIT(BR_FDB_ENTRY_LOCKED); + fdb = fdb_create(br, p, addr, vid, flags); if (!fdb) { err = -ENOMEM;diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index be17c99efe65..88913e6a59e1 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h@@ -815,7 +815,7 @@ int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, const unsigned char *addr, u16 vid, - bool swdev_notify); + bool swdev_notify, bool locked); int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, const unsigned char *addr, u16 vid, bool swdev_notify);-- 2.30.2