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Message-ID: <Y8DXXJRa7m9liU+A@Laptop-X1>
Date: Fri, 13 Jan 2023 12:00:28 +0800
From: Hangbin Liu <liuhangbin@...il.com>
To: David Ahern <dsahern@...nel.org>
Cc: netdev@...r.kernel.org
Subject: Re: [PATCH iproute2-next 2/2] tc: add new attr TCA_EXT_WARN_MSG
Hi David,
Oh, I forgot to add --no-thread when send this patch. Sorry if this makes
any trouble for you.
Hangbin
On Fri, Jan 13, 2023 at 11:46:17AM +0800, Hangbin Liu wrote:
> Currently, when the rule is not to be exclusively executed by the
> hardware, extack is not passed along and offloading failures don't
> get logged. Add a new attr TCA_EXT_WARN_MSG to log the extack message
> so we can monitor the HW failures. e.g.
>
> # tc monitor
> added chain dev enp3s0f1np1 parent ffff: chain 0
> added filter dev enp3s0f1np1 ingress protocol all pref 49152 flower chain 0 handle 0x1
> ct_state +trk+new
> not_in_hw
> action order 1: gact action drop
> random type none pass val 0
> index 1 ref 1 bind 1
>
> Warning: mlx5_core: matching on ct_state +new isn't supported.
>
> Signed-off-by: Hangbin Liu <liuhangbin@...il.com>
> ---
> include/uapi/linux/rtnetlink.h | 1 +
> tc/m_action.c | 6 ++++++
> tc/tc_filter.c | 5 +++++
> tc/tc_qdisc.c | 6 ++++++
> 4 files changed, 18 insertions(+)
>
> diff --git a/include/uapi/linux/rtnetlink.h b/include/uapi/linux/rtnetlink.h
> index f4a540c0..217b25b9 100644
> --- a/include/uapi/linux/rtnetlink.h
> +++ b/include/uapi/linux/rtnetlink.h
> @@ -635,6 +635,7 @@ enum {
> TCA_INGRESS_BLOCK,
> TCA_EGRESS_BLOCK,
> TCA_DUMP_FLAGS,
> + TCA_EXT_WARN_MSG,
> __TCA_MAX
> };
>
> diff --git a/tc/m_action.c b/tc/m_action.c
> index b3fd0193..7121c2fb 100644
> --- a/tc/m_action.c
> +++ b/tc/m_action.c
> @@ -590,6 +590,12 @@ int print_action(struct nlmsghdr *n, void *arg)
>
> open_json_object(NULL);
> tc_dump_action(fp, tb[TCA_ACT_TAB], tot_acts ? *tot_acts:0, false);
> +
> + if (tb[TCA_EXT_WARN_MSG]) {
> + print_string(PRINT_ANY, "Warn", "%s ", rta_getattr_str(tb[TCA_EXT_WARN_MSG]));
> + print_nl();
> + }
> +
> close_json_object();
>
> return 0;
> diff --git a/tc/tc_filter.c b/tc/tc_filter.c
> index 71be2e81..dac74f58 100644
> --- a/tc/tc_filter.c
> +++ b/tc/tc_filter.c
> @@ -371,6 +371,11 @@ int print_filter(struct nlmsghdr *n, void *arg)
> print_nl();
> }
>
> + if (tb[TCA_EXT_WARN_MSG]) {
> + print_string(PRINT_ANY, "Warn", "%s ", rta_getattr_str(tb[TCA_EXT_WARN_MSG]));
> + print_nl();
> + }
> +
> close_json_object();
> fflush(fp);
> return 0;
> diff --git a/tc/tc_qdisc.c b/tc/tc_qdisc.c
> index 33a6665e..a84602b4 100644
> --- a/tc/tc_qdisc.c
> +++ b/tc/tc_qdisc.c
> @@ -346,6 +346,12 @@ int print_qdisc(struct nlmsghdr *n, void *arg)
> print_nl();
> }
> }
> +
> + if (tb[TCA_EXT_WARN_MSG]) {
> + print_string(PRINT_ANY, "Warn", "%s ", rta_getattr_str(tb[TCA_EXT_WARN_MSG]));
> + print_nl();
> + }
> +
> close_json_object();
> fflush(fp);
> return 0;
> --
> 2.38.1
>
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