Propagate blackhole FDB entries through the DSA layer towards the drivers,
remembering that these entries are local entries.

Signed-off-by: Hans J. Schultz <[email protected]>
---
 include/net/dsa.h  |  1 +
 net/dsa/dsa_priv.h |  4 ++--
 net/dsa/port.c     | 22 ++++++++++++----------
 net/dsa/slave.c    |  6 ++++--
 4 files changed, 19 insertions(+), 14 deletions(-)

diff --git a/include/net/dsa.h b/include/net/dsa.h
index e4b641b20713..d5b2aef52d93 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -822,6 +822,7 @@ static inline bool dsa_port_tree_same(const struct dsa_port 
*a,
 }
 
 #define DSA_FDB_FLAG_LOCKED            (1 << 0)
+#define DSA_FDB_FLAG_BLACKHOLE         (1 << 1)
 
 typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid,
                              bool is_static, void *data);
diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
index c943e8934063..611833f162d1 100644
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -251,9 +251,9 @@ int dsa_port_standalone_host_fdb_add(struct dsa_port *dp,
 int dsa_port_standalone_host_fdb_del(struct dsa_port *dp,
                                     const unsigned char *addr, u16 vid);
 int dsa_port_bridge_host_fdb_add(struct dsa_port *dp, const unsigned char 
*addr,
-                                u16 vid);
+                                u16 vid, u16 fdb_flags);
 int dsa_port_bridge_host_fdb_del(struct dsa_port *dp, const unsigned char 
*addr,
-                                u16 vid);
+                                u16 vid, u16 fdb_flags);
 int dsa_port_lag_fdb_add(struct dsa_port *dp, const unsigned char *addr,
                         u16 vid);
 int dsa_port_lag_fdb_del(struct dsa_port *dp, const unsigned char *addr,
diff --git a/net/dsa/port.c b/net/dsa/port.c
index ff4f66f14d39..7e77c5d6090a 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -1001,12 +1001,13 @@ int dsa_port_fdb_del(struct dsa_port *dp, const 
unsigned char *addr,
 
 static int dsa_port_host_fdb_add(struct dsa_port *dp,
                                 const unsigned char *addr, u16 vid,
-                                struct dsa_db db)
+                                u16 fdb_flags, struct dsa_db db)
 {
        struct dsa_notifier_fdb_info info = {
                .dp = dp,
                .addr = addr,
                .vid = vid,
+               .fdb_flags = fdb_flags,
                .db = db,
        };
 
@@ -1024,11 +1025,11 @@ int dsa_port_standalone_host_fdb_add(struct dsa_port 
*dp,
                .dp = dp,
        };
 
-       return dsa_port_host_fdb_add(dp, addr, vid, db);
+       return dsa_port_host_fdb_add(dp, addr, vid, 0, db);
 }
 
-int dsa_port_bridge_host_fdb_add(struct dsa_port *dp,
-                                const unsigned char *addr, u16 vid)
+int dsa_port_bridge_host_fdb_add(struct dsa_port *dp, const unsigned char 
*addr,
+                                u16 vid, u16 fdb_flags)
 {
        struct net_device *master = dsa_port_to_master(dp);
        struct dsa_db db = {
@@ -1047,17 +1048,18 @@ int dsa_port_bridge_host_fdb_add(struct dsa_port *dp,
                        return err;
        }
 
-       return dsa_port_host_fdb_add(dp, addr, vid, db);
+       return dsa_port_host_fdb_add(dp, addr, vid, fdb_flags, db);
 }
 
 static int dsa_port_host_fdb_del(struct dsa_port *dp,
                                 const unsigned char *addr, u16 vid,
-                                struct dsa_db db)
+                                u16 fdb_flags, struct dsa_db db)
 {
        struct dsa_notifier_fdb_info info = {
                .dp = dp,
                .addr = addr,
                .vid = vid,
+               .fdb_flags = fdb_flags,
                .db = db,
        };
 
@@ -1075,11 +1077,11 @@ int dsa_port_standalone_host_fdb_del(struct dsa_port 
*dp,
                .dp = dp,
        };
 
-       return dsa_port_host_fdb_del(dp, addr, vid, db);
+       return dsa_port_host_fdb_del(dp, addr, vid, 0, db);
 }
 
-int dsa_port_bridge_host_fdb_del(struct dsa_port *dp,
-                                const unsigned char *addr, u16 vid)
+int dsa_port_bridge_host_fdb_del(struct dsa_port *dp, const unsigned char 
*addr,
+                                u16 vid, u16 fdb_flags)
 {
        struct net_device *master = dsa_port_to_master(dp);
        struct dsa_db db = {
@@ -1094,7 +1096,7 @@ int dsa_port_bridge_host_fdb_del(struct dsa_port *dp,
                        return err;
        }
 
-       return dsa_port_host_fdb_del(dp, addr, vid, db);
+       return dsa_port_host_fdb_del(dp, addr, vid, fdb_flags, db);
 }
 
 int dsa_port_lag_fdb_add(struct dsa_port *dp, const unsigned char *addr,
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 65f0c578ef44..4e22014ec469 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -3258,7 +3258,7 @@ static void dsa_slave_switchdev_event_work(struct 
work_struct *work)
        switch (switchdev_work->event) {
        case SWITCHDEV_FDB_ADD_TO_DEVICE:
                if (switchdev_work->host_addr)
-                       err = dsa_port_bridge_host_fdb_add(dp, addr, vid);
+                       err = dsa_port_bridge_host_fdb_add(dp, addr, vid, 
fdb_flags);
                else if (dp->lag)
                        err = dsa_port_lag_fdb_add(dp, addr, vid);
                else
@@ -3274,7 +3274,7 @@ static void dsa_slave_switchdev_event_work(struct 
work_struct *work)
 
        case SWITCHDEV_FDB_DEL_TO_DEVICE:
                if (switchdev_work->host_addr)
-                       err = dsa_port_bridge_host_fdb_del(dp, addr, vid);
+                       err = dsa_port_bridge_host_fdb_del(dp, addr, vid, 
fdb_flags);
                else if (dp->lag)
                        err = dsa_port_lag_fdb_del(dp, addr, vid);
                else
@@ -3365,6 +3365,8 @@ static int dsa_slave_fdb_event(struct net_device *dev,
 
        if (fdb_info->locked)
                fdb_flags |= DSA_FDB_FLAG_LOCKED;
+       if (fdb_info->blackhole)
+               fdb_flags |= DSA_FDB_FLAG_BLACKHOLE;
 
        INIT_WORK(&switchdev_work->work, dsa_slave_switchdev_event_work);
        switchdev_work->event = event;
-- 
2.34.1

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