summaryrefslogtreecommitdiffstats
path: root/drivers/net/gianfar.c
diff options
context:
space:
mode:
authorEric Dumazet <eric.dumazet@gmail.com>2011-01-12 12:13:14 +0000
committerDavid S. Miller <davem@davemloft.net>2011-01-13 21:44:34 -0800
commit1ac9ad1394fa542ac7ae0dc943ee3cda678799fa (patch)
treed846be421ed68f4fc612ae7c061783dab73d5fa2 /drivers/net/gianfar.c
parent1949e084bfd143c76e22c0b37f370d6e7bf4bfdd (diff)
downloadlinux-1ac9ad1394fa542ac7ae0dc943ee3cda678799fa.tar.gz
linux-1ac9ad1394fa542ac7ae0dc943ee3cda678799fa.tar.bz2
linux-1ac9ad1394fa542ac7ae0dc943ee3cda678799fa.zip
net: remove dev_txq_stats_fold()
After recent changes, (percpu stats on vlan/tunnels...), we dont need anymore per struct netdev_queue tx_bytes/tx_packets/tx_dropped counters. Only remaining users are ixgbe, sch_teql, gianfar & macvlan : 1) ixgbe can be converted to use existing tx_ring counters. 2) macvlan incremented txq->tx_dropped, it can use the dev->stats.tx_dropped counter. 3) sch_teql : almost revert ab35cd4b8f42 (Use net_device internal stats) Now we have ndo_get_stats64(), use it, even for "unsigned long" fields (No need to bring back a struct net_device_stats) 4) gianfar adds a stats structure per tx queue to hold tx_bytes/tx_packets This removes a lockdep warning (and possible lockup) in rndis gadget, calling dev_get_stats() from hard IRQ context. Ref: http://www.spinics.net/lists/netdev/msg149202.html Reported-by: Neil Jones <neiljay@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Jarek Poplawski <jarkao2@gmail.com> CC: Alexander Duyck <alexander.h.duyck@intel.com> CC: Jeff Kirsher <jeffrey.t.kirsher@intel.com> CC: Sandeep Gopalpet <sandeep.kumar@freescale.com> CC: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/gianfar.c')
-rw-r--r--drivers/net/gianfar.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index 45c4b7bfcf39..f1d4b450e797 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -433,7 +433,6 @@ static void gfar_init_mac(struct net_device *ndev)
static struct net_device_stats *gfar_get_stats(struct net_device *dev)
{
struct gfar_private *priv = netdev_priv(dev);
- struct netdev_queue *txq;
unsigned long rx_packets = 0, rx_bytes = 0, rx_dropped = 0;
unsigned long tx_packets = 0, tx_bytes = 0;
int i = 0;
@@ -449,9 +448,8 @@ static struct net_device_stats *gfar_get_stats(struct net_device *dev)
dev->stats.rx_dropped = rx_dropped;
for (i = 0; i < priv->num_tx_queues; i++) {
- txq = netdev_get_tx_queue(dev, i);
- tx_bytes += txq->tx_bytes;
- tx_packets += txq->tx_packets;
+ tx_bytes += priv->tx_queue[i]->stats.tx_bytes;
+ tx_packets += priv->tx_queue[i]->stats.tx_packets;
}
dev->stats.tx_bytes = tx_bytes;
@@ -2108,8 +2106,8 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
}
/* Update transmit stats */
- txq->tx_bytes += skb->len;
- txq->tx_packets ++;
+ tx_queue->stats.tx_bytes += skb->len;
+ tx_queue->stats.tx_packets++;
txbdp = txbdp_start = tx_queue->cur_tx;
lstatus = txbdp->lstatus;