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Date: Thu, 11 Mar 2010 21:00:34 +0100
From: Jan Engelhardt <jengelh@...ozas.de>
To: stephen.hemminger@...tta.com
Cc: davem@...emloft.net, netdev@...r.kernel.org
Subject: [PATCH] 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 recognition for the new IFLA_STATS64
attribute that exports them in full 64 bit.
Signed-off-by: Jan Engelhardt <jengelh@...ozas.de>
---
include/linux/if_link.h | 33 ++++++++++++++++++++++++++++
ip/ipaddress.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++-
2 files changed, 87 insertions(+), 1 deletions(-)
diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index 5110b96..8772719 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/ip/ipaddress.c b/ip/ipaddress.c
index 48f7b1e..33fc606 100644
--- a/ip/ipaddress.c
+++ b/ip/ipaddress.c
@@ -284,7 +284,60 @@ int print_linkinfo(const struct sockaddr_nl *who,
fprintf(fp,"\n alias %s",
(const char *) RTA_DATA(tb[IFLA_IFALIAS]));
- if (do_link && tb[IFLA_STATS] && show_stats) {
+ if (do_link && tb[IFLA_STATS64] && show_stats) {
+ struct rtnl_link_stats64 slocal;
+ struct rtnl_link_stats64 *s = RTA_DATA(tb[IFLA_STATS64]);
+ if (((unsigned long)s) & (sizeof(unsigned long)-1)) {
+ memcpy(&slocal, s, sizeof(slocal));
+ s = &slocal;
+ }
+ fprintf(fp, "%s", _SL_);
+ fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
+ s->rx_compressed ? "compressed" : "", _SL_);
+ fprintf(fp, " %-10llu %-8llu %-7llu %-7llu %-7llu %-7llu",
+ (unsigned long long)s->rx_bytes,
+ (unsigned long long)s->rx_packets,
+ (unsigned long long)s->rx_errors,
+ (unsigned long long)s->rx_dropped,
+ (unsigned long long)s->rx_over_errors,
+ (unsigned long long)s->multicast);
+ if (s->rx_compressed)
+ fprintf(fp, " %-7llu",
+ (unsigned long long)s->rx_compressed);
+ if (show_stats > 1) {
+ fprintf(fp, "%s", _SL_);
+ fprintf(fp, " RX errors: length crc frame fifo missed%s", _SL_);
+ fprintf(fp, " %-7llu %-7llu %-7llu %-7llu %-7llu",
+ (unsigned long long)s->rx_length_errors,
+ (unsigned long long)s->rx_crc_errors,
+ (unsigned long long)s->rx_frame_errors,
+ (unsigned long long)s->rx_fifo_errors,
+ (unsigned long long)s->rx_missed_errors);
+ }
+ fprintf(fp, "%s", _SL_);
+ fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
+ s->tx_compressed ? "compressed" : "", _SL_);
+ fprintf(fp, " %-10llu %-8llu %-7llu %-7llu %-7llu %-7llu",
+ (unsigned long long)s->tx_bytes,
+ (unsigned long long)s->tx_packets,
+ (unsigned long long)s->tx_errors,
+ (unsigned long long)s->tx_dropped,
+ (unsigned long long)s->tx_carrier_errors,
+ (unsigned long long)s->collisions);
+ if (s->tx_compressed)
+ fprintf(fp, " %-7llu",
+ (unsigned long long)s->tx_compressed);
+ if (show_stats > 1) {
+ fprintf(fp, "%s", _SL_);
+ fprintf(fp, " TX errors: aborted fifo window heartbeat%s", _SL_);
+ fprintf(fp, " %-7llu %-7llu %-7llu %-7llu",
+ (unsigned long long)s->tx_aborted_errors,
+ (unsigned long long)s->tx_fifo_errors,
+ (unsigned long long)s->tx_window_errors,
+ (unsigned long long)s->tx_heartbeat_errors);
+ }
+ }
+ if (do_link && !tb[IFLA_STATS64] && tb[IFLA_STATS] && show_stats) {
struct rtnl_link_stats slocal;
struct rtnl_link_stats *s = RTA_DATA(tb[IFLA_STATS]);
if (((unsigned long)s) & (sizeof(unsigned long)-1)) {
--
1.7.0
--
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