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| author |   Cong Wang <xiyou.wangcong@gmail.com> | 2019-05-01 19:56:59 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-05-04 00:41:41 -0400 |
| commit | 141b6b2ad75d92770240de3af98d55c41ce7cd18 (patch) | |
| tree | c6b302bf24d04bd8a3d294d2df858f60d15116e2 /include/trace | |
| parent | Merge tag 'mlx5-updates-2019-04-30' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux (diff) | |
| download | linux-dev-141b6b2ad75d92770240de3af98d55c41ce7cd18.tar.xz linux-dev-141b6b2ad75d92770240de3af98d55c41ce7cd18.zip | |
net: add a generic tracepoint for TX queue timeout
Although devlink health report does a nice job on reporting TX
timeout and other NIC errors, unfortunately it requires drivers
to support it but currently only mlx5 has implemented it.
Before other drivers could catch up, it is useful to have a
generic tracepoint to monitor this kind of TX timeout. We have
been suffering TX timeout with different drivers, we plan to
start to monitor it with rasdaemon which just needs a new tracepoint.
Sample output:
ksoftirqd/1-16 [001] ..s2 144.043173: net_dev_xmit_timeout: dev=ens3 driver=e1000 queue=0
Cc: Eran Ben Elisha <eranbe@mellanox.com>
Cc: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/net.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/trace/events/net.h b/include/trace/events/net.h index 1efd7d9b25fe..2399073c3afc 100644 --- a/include/trace/events/net.h +++ b/include/trace/events/net.h @@ -95,6 +95,29 @@ TRACE_EVENT(net_dev_xmit, __get_str(name), __entry->skbaddr, __entry->len, __entry->rc) ); +TRACE_EVENT(net_dev_xmit_timeout, + + TP_PROTO(struct net_device *dev, + int queue_index), + + TP_ARGS(dev, queue_index), + + TP_STRUCT__entry( + __string( name, dev->name ) + __string( driver, netdev_drivername(dev)) + __field( int, queue_index ) + ), + + TP_fast_assign( + __assign_str(name, dev->name); + __assign_str(driver, netdev_drivername(dev)); + __entry->queue_index = queue_index; + ), + + TP_printk("dev=%s driver=%s queue=%d", + __get_str(name), __get_str(driver), __entry->queue_index) +); + DECLARE_EVENT_CLASS(net_dev_template, TP_PROTO(struct sk_buff *skb), |