diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/dsa/dsa2.c | 6 | ||||
| -rw-r--r-- | net/dsa/switch.c | 88 |
2 files changed, 87 insertions, 7 deletions
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c index 2035d132682f..185629f27f80 100644 --- a/net/dsa/dsa2.c +++ b/net/dsa/dsa2.c @@ -348,6 +348,7 @@ static int dsa_port_setup(struct dsa_port *dp) if (dp->setup) return 0; + INIT_LIST_HEAD(&dp->fdbs); INIT_LIST_HEAD(&dp->mdbs); switch (dp->type) { @@ -471,6 +472,11 @@ static void dsa_port_teardown(struct dsa_port *dp) break; } + list_for_each_entry_safe(a, tmp, &dp->fdbs, list) { + list_del(&a->list); + kfree(a); + } + list_for_each_entry_safe(a, tmp, &dp->mdbs, list) { list_del(&a->list); kfree(a); diff --git a/net/dsa/switch.c b/net/dsa/switch.c index 219fc9baaa1c..af71b8638098 100644 --- a/net/dsa/switch.c +++ b/net/dsa/switch.c @@ -253,6 +253,71 @@ static int dsa_switch_do_mdb_del(struct dsa_switch *ds, int port, return 0; } +static int dsa_switch_do_fdb_add(struct dsa_switch *ds, int port, + const unsigned char *addr, u16 vid) +{ + struct dsa_port *dp = dsa_to_port(ds, port); + struct dsa_mac_addr *a; + int err; + + /* No need to bother with refcounting for user ports */ + if (!(dsa_port_is_cpu(dp) || dsa_port_is_dsa(dp))) + return ds->ops->port_fdb_add(ds, port, addr, vid); + + a = dsa_mac_addr_find(&dp->fdbs, addr, vid); + if (a) { + refcount_inc(&a->refcount); + return 0; + } + + a = kzalloc(sizeof(*a), GFP_KERNEL); + if (!a) + return -ENOMEM; + + err = ds->ops->port_fdb_add(ds, port, addr, vid); + if (err) { + kfree(a); + return err; + } + + ether_addr_copy(a->addr, addr); + a->vid = vid; + refcount_set(&a->refcount, 1); + list_add_tail(&a->list, &dp->fdbs); + + return 0; +} + +static int dsa_switch_do_fdb_del(struct dsa_switch *ds, int port, + const unsigned char *addr, u16 vid) +{ + struct dsa_port *dp = dsa_to_port(ds, port); + struct dsa_mac_addr *a; + int err; + + /* No need to bother with refcounting for user ports */ + if (!(dsa_port_is_cpu(dp) || dsa_port_is_dsa(dp))) + return ds->ops->port_fdb_del(ds, port, addr, vid); + + a = dsa_mac_addr_find(&dp->fdbs, addr, vid); + if (!a) + return -ENOENT; + + if (!refcount_dec_and_test(&a->refcount)) + return 0; + + err = ds->ops->port_fdb_del(ds, port, addr, vid); + if (err) { + refcount_inc(&a->refcount); + return err; + } + + list_del(&a->list); + kfree(a); + + return 0; +} + static int dsa_switch_host_fdb_add(struct dsa_switch *ds, struct dsa_notifier_fdb_info *info) { @@ -265,7 +330,7 @@ static int dsa_switch_host_fdb_add(struct dsa_switch *ds, for (port = 0; port < ds->num_ports; port++) { if (dsa_switch_host_address_match(ds, port, info->sw_index, info->port)) { - err = ds->ops->port_fdb_add(ds, port, info->addr, + err = dsa_switch_do_fdb_add(ds, port, info->addr, info->vid); if (err) break; @@ -278,14 +343,23 @@ static int dsa_switch_host_fdb_add(struct dsa_switch *ds, static int dsa_switch_host_fdb_del(struct dsa_switch *ds, struct dsa_notifier_fdb_info *info) { + int err = 0; + int port; + if (!ds->ops->port_fdb_del) return -EOPNOTSUPP; - if (ds->index == info->sw_index) - return ds->ops->port_fdb_del(ds, info->port, info->addr, - info->vid); + for (port = 0; port < ds->num_ports; port++) { + if (dsa_switch_host_address_match(ds, port, info->sw_index, + info->port)) { + err = dsa_switch_do_fdb_del(ds, port, info->addr, + info->vid); + if (err) + break; + } + } - return 0; + return err; } static int dsa_switch_fdb_add(struct dsa_switch *ds, @@ -296,7 +370,7 @@ static int dsa_switch_fdb_add(struct dsa_switch *ds, if (!ds->ops->port_fdb_add) return -EOPNOTSUPP; - return ds->ops->port_fdb_add(ds, port, info->addr, info->vid); + return dsa_switch_do_fdb_add(ds, port, info->addr, info->vid); } static int dsa_switch_fdb_del(struct dsa_switch *ds, @@ -307,7 +381,7 @@ static int dsa_switch_fdb_del(struct dsa_switch *ds, if (!ds->ops->port_fdb_del) return -EOPNOTSUPP; - return ds->ops->port_fdb_del(ds, port, info->addr, info->vid); + return dsa_switch_do_fdb_del(ds, port, info->addr, info->vid); } static int dsa_switch_hsr_join(struct dsa_switch *ds, |