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authorJan Engelhardt <jengelh@medozas.de>2010-03-11 12:57:29 +0300
committerDavid S. Miller <davem@davemloft.net>2010-03-17 07:23:22 +0300
commit10708f37ae729baba9b67bd134c3720709d4ae62 (patch)
treefa3e20c31e7d6907668d45eee702d02d646cae8f
parent6ce1a6df6efbbeaa262a225a1a439ebc30a75d2e (diff)
downloadlinux-10708f37ae729baba9b67bd134c3720709d4ae62.tar.xz
net: core: add IFLA_STATS64 support
`ip -s link` shows interface counters truncated to 32 bit. This is because interface statistics are transported only in 32-bit quantity to userspace. This commit adds a new IFLA_STATS64 attribute that exports them in full 64 bit. References: http://lkml.indiana.edu/hypermail/linux/kernel/0307.3/0215.html Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/linux/if_link.h33
-rw-r--r--net/core/rtnetlink.c42
2 files changed, 74 insertions, 1 deletions
diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index c9bf92cd7653..cfd420ba72df 100644
--- a/include/linux/if_link.h
+++ b/include/linux/if_link.h
@@ -37,6 +37,38 @@ struct rtnl_link_stats {
__u32 tx_compressed;
};
+struct rtnl_link_stats64 {
+ __u64 rx_packets; /* total packets received */
+ __u64 tx_packets; /* total packets transmitted */
+ __u64 rx_bytes; /* total bytes received */
+ __u64 tx_bytes; /* total bytes transmitted */
+ __u64 rx_errors; /* bad packets received */
+ __u64 tx_errors; /* packet transmit problems */
+ __u64 rx_dropped; /* no space in linux buffers */
+ __u64 tx_dropped; /* no space available in linux */
+ __u64 multicast; /* multicast packets received */
+ __u64 collisions;
+
+ /* detailed rx_errors: */
+ __u64 rx_length_errors;
+ __u64 rx_over_errors; /* receiver ring buff overflow */
+ __u64 rx_crc_errors; /* recved pkt with crc error */
+ __u64 rx_frame_errors; /* recv'd frame alignment error */
+ __u64 rx_fifo_errors; /* recv'r fifo overrun */
+ __u64 rx_missed_errors; /* receiver missed packet */
+
+ /* detailed tx_errors */
+ __u64 tx_aborted_errors;
+ __u64 tx_carrier_errors;
+ __u64 tx_fifo_errors;
+ __u64 tx_heartbeat_errors;
+ __u64 tx_window_errors;
+
+ /* for cslip etc */
+ __u64 rx_compressed;
+ __u64 tx_compressed;
+};
+
/* The struct should be in sync with struct ifmap */
struct rtnl_link_ifmap {
__u64 mem_start;
@@ -83,6 +115,7 @@ enum {
IFLA_VF_VLAN,
IFLA_VF_TX_RATE, /* TX Bandwidth Allocation */
IFLA_VFINFO,
+ IFLA_STATS64,
__IFLA_MAX
};
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 4568120d8533..e1121f0bca6a 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -600,7 +600,39 @@ static void copy_rtnl_link_stats(struct rtnl_link_stats *a,
a->rx_compressed = b->rx_compressed;
a->tx_compressed = b->tx_compressed;
-};
+}
+
+static void copy_rtnl_link_stats64(struct rtnl_link_stats64 *a,
+ const struct net_device_stats *b)
+{
+ a->rx_packets = b->rx_packets;
+ a->tx_packets = b->tx_packets;
+ a->rx_bytes = b->rx_bytes;
+ a->tx_bytes = b->tx_bytes;
+ a->rx_errors = b->rx_errors;
+ a->tx_errors = b->tx_errors;
+ a->rx_dropped = b->rx_dropped;
+ a->tx_dropped = b->tx_dropped;
+
+ a->multicast = b->multicast;
+ a->collisions = b->collisions;
+
+ a->rx_length_errors = b->rx_length_errors;
+ a->rx_over_errors = b->rx_over_errors;
+ a->rx_crc_errors = b->rx_crc_errors;
+ a->rx_frame_errors = b->rx_frame_errors;
+ a->rx_fifo_errors = b->rx_fifo_errors;
+ a->rx_missed_errors = b->rx_missed_errors;
+
+ a->tx_aborted_errors = b->tx_aborted_errors;
+ a->tx_carrier_errors = b->tx_carrier_errors;
+ a->tx_fifo_errors = b->tx_fifo_errors;
+ a->tx_heartbeat_errors = b->tx_heartbeat_errors;
+ a->tx_window_errors = b->tx_window_errors;
+
+ a->rx_compressed = b->rx_compressed;
+ a->tx_compressed = b->tx_compressed;
+}
static inline int rtnl_vfinfo_size(const struct net_device *dev)
{
@@ -698,6 +730,14 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
stats = dev_get_stats(dev);
copy_rtnl_link_stats(nla_data(attr), stats);
+ attr = nla_reserve(skb, IFLA_STATS64,
+ sizeof(struct rtnl_link_stats64));
+ if (attr == NULL)
+ goto nla_put_failure;
+
+ stats = dev_get_stats(dev);
+ copy_rtnl_link_stats64(nla_data(attr), stats);
+
if (dev->netdev_ops->ndo_get_vf_config && dev->dev.parent) {
int i;
struct ifla_vf_info ivi;