netdev - Re: [Patch net-next v2] net: add a generic tracepoint for TX queue timeout

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Date:   Thu, 2 May 2019 08:44:22 +0000
From:   Eran Ben Elisha <eranbe@...lanox.com>
To:     Cong Wang <xiyou.wangcong@...il.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     Jiri Pirko <jiri@...lanox.com>
Subject: Re: [Patch net-next v2] net: add a generic tracepoint for TX queue
 timeout



On 5/2/2019 5:56 AM, Cong Wang wrote:
> 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@...lanox.com>
> Cc: Jiri Pirko <jiri@...lanox.com>
> Signed-off-by: Cong Wang <xiyou.wangcong@...il.com>

Reviewed-by: Eran Ben Elisha <eranbe@...lanox.com>