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-rw-r--r--include/uapi/linux/if_link.h1
-rw-r--r--net/bridge/br_netlink.c14
-rw-r--r--net/bridge/br_private.h2
-rw-r--r--net/bridge/br_sysfs_br.c17
-rw-r--r--net/bridge/br_vlan.c49
-rw-r--r--net/core/rtnetlink.c2
6 files changed, 81 insertions, 4 deletions
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 58faab897201..1debfa42cba1 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -287,6 +287,7 @@ enum {
IFLA_BR_MCAST_STATS_ENABLED,
IFLA_BR_MCAST_IGMP_VERSION,
IFLA_BR_MCAST_MLD_VERSION,
+ IFLA_BR_VLAN_STATS_PER_PORT,
__IFLA_BR_MAX,
};
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index e5a5bc5d5232..3345f1984542 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -1034,6 +1034,7 @@ static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
[IFLA_BR_MCAST_STATS_ENABLED] = { .type = NLA_U8 },
[IFLA_BR_MCAST_IGMP_VERSION] = { .type = NLA_U8 },
[IFLA_BR_MCAST_MLD_VERSION] = { .type = NLA_U8 },
+ [IFLA_BR_VLAN_STATS_PER_PORT] = { .type = NLA_U8 },
};
static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
@@ -1114,6 +1115,14 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
if (err)
return err;
}
+
+ if (data[IFLA_BR_VLAN_STATS_PER_PORT]) {
+ __u8 per_port = nla_get_u8(data[IFLA_BR_VLAN_STATS_PER_PORT]);
+
+ err = br_vlan_set_stats_per_port(br, per_port);
+ if (err)
+ return err;
+ }
#endif
if (data[IFLA_BR_GROUP_FWD_MASK]) {
@@ -1327,6 +1336,7 @@ static size_t br_get_size(const struct net_device *brdev)
nla_total_size(sizeof(__be16)) + /* IFLA_BR_VLAN_PROTOCOL */
nla_total_size(sizeof(u16)) + /* IFLA_BR_VLAN_DEFAULT_PVID */
nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_STATS_ENABLED */
+ nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_STATS_PER_PORT */
#endif
nla_total_size(sizeof(u16)) + /* IFLA_BR_GROUP_FWD_MASK */
nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_ROOT_ID */
@@ -1417,7 +1427,9 @@ static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
if (nla_put_be16(skb, IFLA_BR_VLAN_PROTOCOL, br->vlan_proto) ||
nla_put_u16(skb, IFLA_BR_VLAN_DEFAULT_PVID, br->default_pvid) ||
nla_put_u8(skb, IFLA_BR_VLAN_STATS_ENABLED,
- br_opt_get(br, BROPT_VLAN_STATS_ENABLED)))
+ br_opt_get(br, BROPT_VLAN_STATS_ENABLED)) ||
+ nla_put_u8(skb, IFLA_BR_VLAN_STATS_PER_PORT,
+ br_opt_get(br, IFLA_BR_VLAN_STATS_PER_PORT)))
return -EMSGSIZE;
#endif
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 57229b9d800f..10ee39fdca5c 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -320,6 +320,7 @@ enum net_bridge_opts {
BROPT_HAS_IPV6_ADDR,
BROPT_NEIGH_SUPPRESS_ENABLED,
BROPT_MTU_SET_BY_USER,
+ BROPT_VLAN_STATS_PER_PORT,
};
struct net_bridge {
@@ -859,6 +860,7 @@ int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val);
int __br_vlan_set_proto(struct net_bridge *br, __be16 proto);
int br_vlan_set_proto(struct net_bridge *br, unsigned long val);
int br_vlan_set_stats(struct net_bridge *br, unsigned long val);
+int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val);
int br_vlan_init(struct net_bridge *br);
int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val);
int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid);
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index c93c5724609e..60182bef6341 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -803,6 +803,22 @@ static ssize_t vlan_stats_enabled_store(struct device *d,
return store_bridge_parm(d, buf, len, br_vlan_set_stats);
}
static DEVICE_ATTR_RW(vlan_stats_enabled);
+
+static ssize_t vlan_stats_per_port_show(struct device *d,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct net_bridge *br = to_bridge(d);
+ return sprintf(buf, "%u\n", br_opt_get(br, BROPT_VLAN_STATS_PER_PORT));
+}
+
+static ssize_t vlan_stats_per_port_store(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ return store_bridge_parm(d, buf, len, br_vlan_set_stats_per_port);
+}
+static DEVICE_ATTR_RW(vlan_stats_per_port);
#endif
static struct attribute *bridge_attrs[] = {
@@ -856,6 +872,7 @@ static struct attribute *bridge_attrs[] = {
&dev_attr_vlan_protocol.attr,
&dev_attr_default_pvid.attr,
&dev_attr_vlan_stats_enabled.attr,
+ &dev_attr_vlan_stats_per_port.attr,
#endif
NULL
};
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 5942e03dd845..9b707234e4ae 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -190,6 +190,19 @@ static void br_vlan_put_master(struct net_bridge_vlan *masterv)
}
}
+static void nbp_vlan_rcu_free(struct rcu_head *rcu)
+{
+ struct net_bridge_vlan *v;
+
+ v = container_of(rcu, struct net_bridge_vlan, rcu);
+ WARN_ON(br_vlan_is_master(v));
+ /* if we had per-port stats configured then free them here */
+ if (v->brvlan->stats != v->stats)
+ free_percpu(v->stats);
+ v->stats = NULL;
+ kfree(v);
+}
+
/* This is the shared VLAN add function which works for both ports and bridge
* devices. There are four possible calls to this function in terms of the
* vlan entry type:
@@ -245,7 +258,15 @@ static int __vlan_add(struct net_bridge_vlan *v, u16 flags)
if (!masterv)
goto out_filt;
v->brvlan = masterv;
- v->stats = masterv->stats;
+ if (br_opt_get(br, BROPT_VLAN_STATS_PER_PORT)) {
+ v->stats = netdev_alloc_pcpu_stats(struct br_vlan_stats);
+ if (!v->stats) {
+ err = -ENOMEM;
+ goto out_filt;
+ }
+ } else {
+ v->stats = masterv->stats;
+ }
} else {
err = br_switchdev_port_vlan_add(dev, v->vid, flags);
if (err && err != -EOPNOTSUPP)
@@ -329,7 +350,7 @@ static int __vlan_del(struct net_bridge_vlan *v)
rhashtable_remove_fast(&vg->vlan_hash, &v->vnode,
br_vlan_rht_params);
__vlan_del_list(v);
- kfree_rcu(v, rcu);
+ call_rcu(&v->rcu, nbp_vlan_rcu_free);
}
br_vlan_put_master(masterv);
@@ -830,6 +851,30 @@ int br_vlan_set_stats(struct net_bridge *br, unsigned long val)
return 0;
}
+int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val)
+{
+ struct net_bridge_port *p;
+
+ /* allow to change the option if there are no port vlans configured */
+ list_for_each_entry(p, &br->port_list, list) {
+ struct net_bridge_vlan_group *vg = nbp_vlan_group(p);
+
+ if (vg->num_vlans)
+ return -EBUSY;
+ }
+
+ switch (val) {
+ case 0:
+ case 1:
+ br_opt_toggle(br, BROPT_VLAN_STATS_PER_PORT, !!val);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static bool vlan_default_pvid(struct net_bridge_vlan_group *vg, u16 vid)
{
struct net_bridge_vlan *v;
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 46328a10034a..0958c7be2c22 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -59,7 +59,7 @@
#include <net/rtnetlink.h>
#include <net/net_namespace.h>
-#define RTNL_MAX_TYPE 48
+#define RTNL_MAX_TYPE 49
#define RTNL_SLAVE_MAX_TYPE 36
struct rtnl_link {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.