net: bridge: add STP xstats
This adds rx_bpdu, tx_bpdu, rx_tcn, tx_tcn, transition_blk,
transition_fwd xstats counters to the bridge ports copied over via
netlink, providing useful information for STP.
Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index a0a5448..6013657 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -1607,6 +1607,19 @@ static int br_fill_linkxstats(struct sk_buff *skb,
br_multicast_get_stats(br, p, nla_data(nla));
}
#endif
+
+ if (p) {
+ nla = nla_reserve_64bit(skb, BRIDGE_XSTATS_STP,
+ sizeof(p->stp_xstats),
+ BRIDGE_XSTATS_PAD);
+ if (!nla)
+ goto nla_put_failure;
+
+ spin_lock_bh(&br->lock);
+ memcpy(nla_data(nla), &p->stp_xstats, sizeof(p->stp_xstats));
+ spin_unlock_bh(&br->lock);
+ }
+
nla_nest_end(skb, nest);
*prividx = 0;
