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From: Jiri Pirko <>
To: John Hurley <>
Subject: Re: [PATCH net-next v2 1/3] net: sched: add mpls manipulation actions to TC
Date: Fri, 14 Jun 2019 10:10:04 +0200
Message-ID: <20190614081004.GC2242@nanopsycho> (raw)
In-Reply-To: <>

Thu, Jun 13, 2019 at 07:43:57PM CEST, wrote:
>Currently, TC offers the ability to match on the MPLS fields of a packet
>through the use of the flow_dissector_key_mpls struct. However, as yet, TC
>actions do not allow the modification or manipulation of such fields.
>Add a new module that registers TC action ops to allow manipulation of
>MPLS. This includes the ability to push and pop headers as well as modify
>the contents of new or existing headers. A further action to decrement the
>TTL field of an MPLS header is also provided.
>Signed-off-by: John Hurley <>
>Reviewed-by: Jakub Kicinski <>


>+		if (tb[TCA_MPLS_LABEL] || tb[TCA_MPLS_TTL] || tb[TCA_MPLS_TC]) {
>+			NL_SET_ERR_MSG_MOD(extack,
>+					   "MPLS POP: unsupported attrs");

No need to break line here and couple other similar places in this code.
Anyway, looks good otherwise:

Acked-by: Jiri Pirko <>


  reply index

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-13 17:43 [PATCH net-next v2 0/3] Add MPLS " John Hurley
2019-06-13 17:43 ` [PATCH net-next v2 1/3] net: sched: add mpls manipulation " John Hurley
2019-06-14  8:10   ` Jiri Pirko [this message]
2019-06-14 11:59     ` John Hurley
2019-06-14 16:59   ` Cong Wang
2019-06-14 22:56     ` John Hurley
2019-06-17 21:18       ` Cong Wang
2019-06-17 22:09         ` John Hurley
2019-06-13 17:43 ` [PATCH net-next v2 2/3] net: sched: include mpls actions in hardware intermediate representation John Hurley
2019-06-14  8:11   ` Jiri Pirko
2019-06-13 17:43 ` [PATCH net-next v2 3/3] selftests: tc-tests: actions: add MPLS tests John Hurley

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