ieee802154: 6lowpan: add tx/rx stats

This patch adds support for increment transmit and receive stats. The
meaning of these stats are IPv6 based, which shows the stats after
running the 6lowpan adaptation layer (uncompression/compression,
fragmentation handling) on receive and before the adaptation layer
when transmit.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

2 files changed, 6 insertions, 0 deletions

diff --git a/net/ieee802154/6lowpan/rx.c b/net/ieee802154/6lowpan/rx.c
index b1fd47d2802b..65d55e05516c 100644
--- a/net/ieee802154/6lowpan/rx.c
+++ b/net/ieee802154/6lowpan/rx.c
@@ -29,6 +29,8 @@
 static int lowpan_give_skb_to_device(struct sk_buff *skb)
 {
         skb->protocol = htons(ETH_P_IPV6);
+        skb->dev->stats.rx_packets++;
+        skb->dev->stats.rx_bytes += skb->len;
 
         return netif_rx(skb);
 }
diff --git a/net/ieee802154/6lowpan/tx.c b/net/ieee802154/6lowpan/tx.c
index 3b665e12cf2b..57363026ff22 100644
--- a/net/ieee802154/6lowpan/tx.c
+++ b/net/ieee802154/6lowpan/tx.c
@@ -192,6 +192,8 @@ lowpan_xmit_fragmented(struct sk_buff *skb, struct net_device *ldev,
                 }
         } while (skb_unprocessed > frag_cap);
 
+        ldev->stats.tx_packets++;
+        ldev->stats.tx_bytes += dgram_size;
         consume_skb(skb);
         return NET_XMIT_SUCCESS;
 
@@ -277,6 +279,8 @@ netdev_tx_t lowpan_xmit(struct sk_buff *skb, struct net_device *ldev)
 
         if (skb_tail_pointer(skb) - skb_network_header(skb) <= max_single) {
                 skb->dev = lowpan_dev_info(ldev)->wdev;
+                ldev->stats.tx_packets++;
+                ldev->stats.tx_bytes += dgram_size;
                 return dev_queue_xmit(skb);
         } else {
                 netdev_tx_t rc;