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| author | david decotigny <decot@googlers.com> | 2014-03-29 17:48:35 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-03-31 22:24:52 +0200 |
| commit | 2d3b479df41a10e2f41f9259fcba775bd34de6e4 (patch) | |
| tree | 517291066c35188a41b005e81904e69865643e76 /include/uapi | |
| parent | ipv6: tcp_ipv6 policy route issue (diff) | |
| download | linux-2d3b479df41a10e2f41f9259fcba775bd34de6e4.tar.xz linux-2d3b479df41a10e2f41f9259fcba775bd34de6e4.zip | |
net-sysfs: expose number of carrier on/off changes
This allows to monitor carrier on/off transitions and detect link
flapping issues:
- new /sys/class/net/X/carrier_changes
- new rtnetlink IFLA_CARRIER_CHANGES (getlink)
Tested:
- grep . /sys/class/net/*/carrier_changes
+ ip link set dev X down/up
+ plug/unplug cable
- updated iproute2: prints IFLA_CARRIER_CHANGES
- iproute2 20121211-2 (debian): unchanged behavior
Signed-off-by: David Decotigny <decot@googlers.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/if_link.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h index 16410b6e7819..9a7f7ace6649 100644 --- a/include/uapi/linux/if_link.h +++ b/include/uapi/linux/if_link.h @@ -144,6 +144,7 @@ enum { IFLA_NUM_RX_QUEUES, IFLA_CARRIER, IFLA_PHYS_PORT_ID, + IFLA_CARRIER_CHANGES, __IFLA_MAX }; |