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>

5 files changed, 28 insertions, 2 deletions

diff --git a/drivers/net/qlcnic/qlcnic.h b/drivers/net/qlcnic/qlcnic.h
index b40a851ec7d1..9897b699752f 100644
--- a/drivers/net/qlcnic/qlcnic.h
+++ b/drivers/net/qlcnic/qlcnic.h
@@ -423,6 +423,11 @@ struct qlcnic_adapter_stats {
         u64  lro_pkts;
         u64  rxbytes;
         u64  txbytes;
+        u64  lrobytes;
+        u64  lso_frames;
+        u64  xmit_on;
+        u64  xmit_off;
+        u64  skb_alloc_failure;
 };
 
 /*
diff --git a/drivers/net/qlcnic/qlcnic_ethtool.c b/drivers/net/qlcnic/qlcnic_ethtool.c
index ef12792a88be..f83e15fe3e1b 100644
--- a/drivers/net/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/qlcnic/qlcnic_ethtool.c
@@ -59,6 +59,17 @@ static const struct qlcnic_stats qlcnic_gstrings_stats[] = {
                 QLC_SIZEOF(stats.rxbytes), QLC_OFF(stats.rxbytes)},
         {"tx_bytes",
                 QLC_SIZEOF(stats.txbytes), QLC_OFF(stats.txbytes)},
+        {"lrobytes",
+                QLC_SIZEOF(stats.lrobytes), QLC_OFF(stats.lrobytes)},
+        {"lso_frames",
+                QLC_SIZEOF(stats.lso_frames), QLC_OFF(stats.lso_frames)},
+        {"xmit_on",
+                QLC_SIZEOF(stats.xmit_on), QLC_OFF(stats.xmit_on)},
+        {"xmit_off",
+                QLC_SIZEOF(stats.xmit_off), QLC_OFF(stats.xmit_off)},
+        {"skb_alloc_failure", QLC_SIZEOF(stats.skb_alloc_failure),
+                QLC_OFF(stats.skb_alloc_failure)},
+
 };
 
 #define QLCNIC_STATS_LEN        ARRAY_SIZE(qlcnic_gstrings_stats)
diff --git a/drivers/net/qlcnic/qlcnic_hw.c b/drivers/net/qlcnic/qlcnic_hw.c
index 99a4d1379d00..e95646bf7d56 100644
--- a/drivers/net/qlcnic/qlcnic_hw.c
+++ b/drivers/net/qlcnic/qlcnic_hw.c
@@ -349,6 +349,7 @@ qlcnic_send_cmd_descs(struct qlcnic_adapter *adapter,
         if (nr_desc >= qlcnic_tx_avail(tx_ring)) {
                 netif_tx_stop_queue(tx_ring->txq);
                 __netif_tx_unlock_bh(tx_ring->txq);
+                adapter->stats.xmit_off++;
                 return -EBUSY;
         }
 
diff --git a/drivers/net/qlcnic/qlcnic_init.c b/drivers/net/qlcnic/qlcnic_init.c
index ea00ab4d4feb..f0df9717aece 100644
--- a/drivers/net/qlcnic/qlcnic_init.c
+++ b/drivers/net/qlcnic/qlcnic_init.c
@@ -1114,8 +1114,10 @@ qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
         struct pci_dev *pdev = adapter->pdev;
 
         buffer->skb = dev_alloc_skb(rds_ring->skb_size);
-        if (!buffer->skb)
+        if (!buffer->skb) {
+                adapter->stats.skb_alloc_failure++;
                 return -ENOMEM;
+        }
 
         skb = buffer->skb;
 
@@ -1289,7 +1291,7 @@ qlcnic_process_lro(struct qlcnic_adapter *adapter,
         netif_receive_skb(skb);
 
         adapter->stats.lro_pkts++;
-        adapter->stats.rxbytes += length;
+        adapter->stats.lrobytes += length;
 
         return buffer;
 }
@@ -1505,6 +1507,8 @@ qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter,
                 adapter->diag_cnt++;
 
         dev_kfree_skb_any(skb);
+        adapter->stats.rx_pkts++;
+        adapter->stats.rxbytes += length;
 
         return buffer;
 }
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);
                 }