be2net: add a counter for pkts dropped in xmit path
In the xmit path, the driver may drop some pkts due to reasons such as
DMA mapping errors, out of memory conditions or to protect HW from
unrecoverable errors. Add a counter in TX-stats for such drops.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 6691d75..0a168e3 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -935,8 +935,10 @@
u32 start = txq->head;
skb = be_xmit_workarounds(adapter, skb, &skip_hw_vlan);
- if (!skb)
+ if (!skb) {
+ tx_stats(txo)->tx_drv_drops++;
return NETDEV_TX_OK;
+ }
wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
@@ -965,6 +967,7 @@
be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
} else {
txq->head = start;
+ tx_stats(txo)->tx_drv_drops++;
dev_kfree_skb_any(skb);
}
return NETDEV_TX_OK;