qlcnic: additional driver statistics.

Statistics added for lro/lso bytes, count for tx stop queue and
wake queue and skb alloc failure count.

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c
index 665e8e56b6a8..fc721564e69e 100644
--- a/drivers/net/qlcnic/qlcnic_main.c
+++ b/drivers/net/qlcnic/qlcnic_main.c
@@ -118,6 +118,7 @@ qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
         if (qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH) {
                 netif_stop_queue(adapter->netdev);
                 smp_mb();
+                adapter->stats.xmit_off++;
         }
 }
 
@@ -1385,6 +1386,7 @@ qlcnic_tso_check(struct net_device *netdev,
         int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
         struct cmd_desc_type0 *hwdesc;
         struct vlan_ethhdr *vh;
+        struct qlcnic_adapter *adapter = netdev_priv(netdev);
 
         if (protocol == cpu_to_be16(ETH_P_8021Q)) {
 
@@ -1494,6 +1496,7 @@ qlcnic_tso_check(struct net_device *netdev,
 
         tx_ring->producer = producer;
         barrier();
+        adapter->stats.lso_frames++;
 }
 
 static int
@@ -1573,6 +1576,7 @@ qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 
         if (unlikely(no_of_desc + 2 > qlcnic_tx_avail(tx_ring))) {
                 netif_stop_queue(netdev);
+                adapter->stats.xmit_off++;
                 return NETDEV_TX_BUSY;
         }
 
@@ -1880,6 +1884,7 @@ static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
                         if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
                                 netif_wake_queue(netdev);
                                 adapter->tx_timeo_cnt = 0;
+                                adapter->stats.xmit_on++;
                         }
                         __netif_tx_unlock(tx_ring->txq);
                 }