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net: core: add IFLA_STATS64 support

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`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>
This commit is contained in:
Jan Engelhardt
2010-03-11 09:57:29 +00:00
committed by David S. Miller
parent 6ce1a6df6e
commit 10708f37ae
2 changed files with 74 additions and 1 deletions
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33
include/linux/if_link.h
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@@ -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
};