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>
diff --git a/drivers/net/qlcnic/qlcnic.h b/drivers/net/qlcnic/qlcnic.h
index b40a851..9897b69 100644
--- a/drivers/net/qlcnic/qlcnic.h
+++ b/drivers/net/qlcnic/qlcnic.h
@@ -423,6 +423,11 @@
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 ef12792..f83e15f 100644
--- a/drivers/net/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/qlcnic/qlcnic_ethtool.c
@@ -59,6 +59,17 @@
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 99a4d13..e95646b 100644
--- a/drivers/net/qlcnic/qlcnic_hw.c
+++ b/drivers/net/qlcnic/qlcnic_hw.c
@@ -349,6 +349,7 @@
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 ea00ab4..f0df971 100644
--- a/drivers/net/qlcnic/qlcnic_init.c
+++ b/drivers/net/qlcnic/qlcnic_init.c
@@ -1114,8 +1114,10 @@
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 @@
netif_receive_skb(skb);
adapter->stats.lro_pkts++;
- adapter->stats.rxbytes += length;
+ adapter->stats.lrobytes += length;
return buffer;
}
@@ -1505,6 +1507,8 @@
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 665e8e5..fc72156 100644
--- a/drivers/net/qlcnic/qlcnic_main.c
+++ b/drivers/net/qlcnic/qlcnic_main.c
@@ -118,6 +118,7 @@
if (qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH) {
netif_stop_queue(adapter->netdev);
smp_mb();
+ adapter->stats.xmit_off++;
}
}
@@ -1385,6 +1386,7 @@
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 @@
tx_ring->producer = producer;
barrier();
+ adapter->stats.lso_frames++;
}
static int
@@ -1573,6 +1576,7 @@
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 @@
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);
}