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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2010-06-24 00:55:06 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-06-29 06:24:31 (GMT) |
| commit | 9618e2ffd78aaa43a5815e1dd456b4dd95f9e53b (patch) | |
| tree | 2d75562cd72aa8492154054b90a6d659a80ac4ee /net/8021q/vlan_dev.c | |
| parent | bc66154efe163a80f269d448572f7906756e9338 (diff) | |
| download | linux-9618e2ffd78aaa43a5815e1dd456b4dd95f9e53b.tar.xz | |
vlan: 64 bit rx counters
Use u64_stats_sync infrastructure to implement 64bit rx stats.
(tx stats are addressed later)
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/8021q/vlan_dev.c')
| -rw-r--r-- | net/8021q/vlan_dev.c | 46 |
1 files changed, 29 insertions, 17 deletions
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index 5298426..c6456cb 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -166,6 +166,7 @@ int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev, rx_stats = per_cpu_ptr(vlan_dev_info(skb->dev)->vlan_rx_stats, smp_processor_id()); + u64_stats_update_begin(&rx_stats->syncp); rx_stats->rx_packets++; rx_stats->rx_bytes += skb->len; @@ -182,7 +183,7 @@ int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev, break; case PACKET_MULTICAST: - rx_stats->multicast++; + rx_stats->rx_multicast++; break; case PACKET_OTHERHOST: @@ -197,6 +198,7 @@ int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev, default: break; } + u64_stats_update_end(&rx_stats->syncp); vlan_set_encap_proto(skb, vhdr); @@ -801,27 +803,37 @@ static u32 vlan_ethtool_get_flags(struct net_device *dev) return dev_ethtool_get_flags(vlan->real_dev); } -static struct net_device_stats *vlan_dev_get_stats(struct net_device *dev) +static struct rtnl_link_stats64 *vlan_dev_get_stats64(struct net_device *dev) { - struct net_device_stats *stats = &dev->stats; + struct rtnl_link_stats64 *stats = &dev->stats64; - dev_txq_stats_fold(dev, stats); + dev_txq_stats_fold(dev, &dev->stats); if (vlan_dev_info(dev)->vlan_rx_stats) { - struct vlan_rx_stats *p, rx = {0}; + struct vlan_rx_stats *p, accum = {0}; int i; for_each_possible_cpu(i) { + u64 rxpackets, rxbytes, rxmulticast; + unsigned int start; + p = per_cpu_ptr(vlan_dev_info(dev)->vlan_rx_stats, i); - rx.rx_packets += p->rx_packets; - rx.rx_bytes += p->rx_bytes; - rx.rx_errors += p->rx_errors; - rx.multicast += p->multicast; + do { + start = u64_stats_fetch_begin_bh(&p->syncp); + rxpackets = p->rx_packets; + rxbytes = p->rx_bytes; + rxmulticast = p->rx_multicast; + } while (u64_stats_fetch_retry_bh(&p->syncp, start)); + accum.rx_packets += rxpackets; + accum.rx_bytes += rxbytes; + accum.rx_multicast += rxmulticast; + /* rx_errors is an ulong, not protected by syncp */ + accum.rx_errors += p->rx_errors; } - stats->rx_packets = rx.rx_packets; - stats->rx_bytes = rx.rx_bytes; - stats->rx_errors = rx.rx_errors; - stats->multicast = rx.multicast; + stats->rx_packets = accum.rx_packets; + stats->rx_bytes = accum.rx_bytes; + stats->rx_errors = accum.rx_errors; + stats->multicast = accum.rx_multicast; } return stats; } @@ -848,7 +860,7 @@ static const struct net_device_ops vlan_netdev_ops = { .ndo_change_rx_flags = vlan_dev_change_rx_flags, .ndo_do_ioctl = vlan_dev_ioctl, .ndo_neigh_setup = vlan_dev_neigh_setup, - .ndo_get_stats = vlan_dev_get_stats, + .ndo_get_stats64 = vlan_dev_get_stats64, #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup, .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done, @@ -872,7 +884,7 @@ static const struct net_device_ops vlan_netdev_accel_ops = { .ndo_change_rx_flags = vlan_dev_change_rx_flags, .ndo_do_ioctl = vlan_dev_ioctl, .ndo_neigh_setup = vlan_dev_neigh_setup, - .ndo_get_stats = vlan_dev_get_stats, + .ndo_get_stats64 = vlan_dev_get_stats64, #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup, .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done, @@ -897,7 +909,7 @@ static const struct net_device_ops vlan_netdev_ops_sq = { .ndo_change_rx_flags = vlan_dev_change_rx_flags, .ndo_do_ioctl = vlan_dev_ioctl, .ndo_neigh_setup = vlan_dev_neigh_setup, - .ndo_get_stats = vlan_dev_get_stats, + .ndo_get_stats64 = vlan_dev_get_stats64, #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup, .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done, @@ -922,7 +934,7 @@ static const struct net_device_ops vlan_netdev_accel_ops_sq = { .ndo_change_rx_flags = vlan_dev_change_rx_flags, .ndo_do_ioctl = vlan_dev_ioctl, .ndo_neigh_setup = vlan_dev_neigh_setup, - .ndo_get_stats = vlan_dev_get_stats, + .ndo_get_stats64 = vlan_dev_get_stats64, #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup, .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done, |