From: Adrien Mazarguil <adrien.mazarguil@6wind.com>
To: Qi Zhang <qi.z.zhang@intel.com>
Cc: dev@dpdk.org, declan.doherty@intel.com,
sugesh.chandran@intel.com, michael.j.glynn@intel.com,
yu.y.liu@intel.com, konstantin.ananyev@intel.com,
bruce.richardson@intel.com
Subject: Re: [dpdk-dev] [PATCH v3 3/4] ethdev: add TTL change actions in flow API
Date: Thu, 19 Apr 2018 16:48:55 +0200 [thread overview]
Message-ID: <20180419144855.GG4957@6wind.com> (raw)
In-Reply-To: <20180416061042.785-4-qi.z.zhang@intel.com>
On Mon, Apr 16, 2018 at 02:10:41PM +0800, Qi Zhang wrote:
> Add couple OpenFlow frienldy TTL change actions.
frienldy => friendly
>
> RTE_FLOW_ACTION_MLPS_TTL_DEC - decrement MPLS TTL.
> RTE_FLOW_ACTION_IP_TTL_DEC - decrement IP TTL.
> RTE_FLOW_ACTION_TTL_COPY_OUT - copy TTL outwards.
> RTE_FLOW_ACTION_TTL_COPY_IN - copy TTL inwards.
>
> Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
These are OpenFlow actions whose behavior is defined by the OpenFlow
specification. They must have "OF" part of their name to make this clear,
as in "RTE_FLOW_ACTION_OF_MPLS_TTL_DEC".
More below.
> ---
> app/test-pmd/cmdline_flow.c | 64 +++++++++++++++++++++++
> doc/guides/prog_guide/rte_flow.rst | 80 +++++++++++++++++++++++++++++
> doc/guides/testpmd_app_ug/testpmd_funcs.rst | 12 +++++
> lib/librte_ether/rte_flow.h | 77 +++++++++++++++++++++++++++
> 4 files changed, 233 insertions(+)
>
> diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c
> index 7950b1b8d..417cbecc9 100644
> --- a/app/test-pmd/cmdline_flow.c
> +++ b/app/test-pmd/cmdline_flow.c
> @@ -195,6 +195,12 @@ enum index {
> ACTION_VF_ID,
> ACTION_METER,
> ACTION_METER_ID,
> + ACTION_MPLS_TTL_DEC,
> + ACTION_MPLS_TTL_DEC_LVL,
> + ACTION_IP_TTL_DEC,
> + ACTION_IP_TTL_DEC_LVL,
> + ACTION_TTL_COPY_OUT,
> + ACTION_TTL_COPY_IN,
> };
>
> /** Size of pattern[] field in struct rte_flow_item_raw. */
> @@ -668,6 +674,10 @@ static const enum index next_action[] = {
> ACTION_PF,
> ACTION_VF,
> ACTION_METER,
> + ACTION_MPLS_TTL_DEC,
> + ACTION_IP_TTL_DEC,
> + ACTION_TTL_COPY_OUT,
> + ACTION_TTL_COPY_IN,
> ZERO,
> };
>
> @@ -708,6 +718,16 @@ static const enum index action_meter[] = {
> ZERO,
> };
>
> +static const enum index action_mpls_ttl_dec[] = {
> + ACTION_MPLS_TTL_DEC_LVL,
> + ZERO,
> +};
> +
> +static const enum index action_ip_ttl_dec[] = {
> + ACTION_IP_TTL_DEC_LVL,
> + ZERO,
> +};
> +
The OpenFlow specification doesn't mention any parameter for these
actions. Unless I'm mistaken, it doesn't have a concept of "level", please
remove them.
> static int parse_init(struct context *, const struct token *,
> const char *, unsigned int,
> void *, unsigned int);
> @@ -1857,6 +1877,50 @@ static const struct token token_list[] = {
> .args = ARGS(ARGS_ENTRY(struct rte_flow_action_meter, mtr_id)),
> .call = parse_vc_conf,
> },
> + [ACTION_MPLS_TTL_DEC] = {
> + .name = "mpls_ttl_dec",
mpls_ttl_dec => of_mpls_ttl_dec
> + .help = "decrement MPLS TTL",
> + .priv = PRIV_ACTION(MPLS_TTL_DEC,
> + sizeof(struct rte_flow_action_mpls_ttl_dec)),
> + .next = NEXT(action_mpls_ttl_dec),
> + .call = parse_vc,
> + },
> + [ACTION_MPLS_TTL_DEC_LVL] = {
> + .name = "level",
> + .help = "level of MPLS header",
> + .next = NEXT(action_mpls_ttl_dec, NEXT_ENTRY(UNSIGNED)),
> + .args = ARGS(ARGS_ENTRY(struct rte_flow_action_queue, index)),
> + .call = parse_vc,
> + },
> + [ACTION_IP_TTL_DEC] = {
> + .name = "ip_ttl_dec",
ip_ttl_dec => of_ip_ttl_dec
> + .help = "decrement IPv4 TTL or IPv6 Hop Limit",
> + .priv = PRIV_ACTION(MPLS_TTL_DEC,
> + sizeof(struct rte_flow_action_ip_ttl_dec)),
> + .next = NEXT(action_ip_ttl_dec),
> + .call = parse_vc,
> + },
> + [ACTION_IP_TTL_DEC_LVL] = {
> + .name = "level",
> + .help = "level of IPv4 or IPv6 header",
> + .next = NEXT(action_ip_ttl_dec, NEXT_ENTRY(UNSIGNED)),
> + .args = ARGS(ARGS_ENTRY(struct rte_flow_action_queue, index)),
> + .call = parse_vc,
> + },
> + [ACTION_TTL_COPY_OUT] = {
> + .name = "ttl_copy_out",
ttl_copy_out => of_ttl_copy_out
> + .help = "copy TTL outwards",
> + .priv = PRIV_ACTION(DROP, 0),
Should be "PRIV_ACTION(ACTION_TTL_COPY_OUT, 0)".
> + .next = NEXT(NEXT_ENTRY(ACTION_NEXT)),
> + .call = parse_vc,
> + },
> + [ACTION_TTL_COPY_IN] = {
> + .name = "ttl_copy_in",
ttl_copy_in => of_ttl_copy_in
> + .help = "copy TTL inwards",
> + .priv = PRIV_ACTION(DROP, 0),
Should be "PRIV_ACTION(ACTION_TTL_COPY_IN, 0)".
> + .next = NEXT(NEXT_ENTRY(ACTION_NEXT)),
> + .call = parse_vc,
> + },
> };
>
> /** Remove and return last entry from argument stack. */
> diff --git a/doc/guides/prog_guide/rte_flow.rst b/doc/guides/prog_guide/rte_flow.rst
> index 68deb9812..65f2d4a16 100644
> --- a/doc/guides/prog_guide/rte_flow.rst
> +++ b/doc/guides/prog_guide/rte_flow.rst
> @@ -1604,6 +1604,86 @@ contain respective protocol layer.
> | ``mask`` | Bit-mask applied to new_val |
> +---------------+-------------------------------------------------------------------+
>
> +Action: ``MPLS_TTL_DEC``
> +^^^^^^^^^^^^^^^^^^^^^^^^
> +
> +Decrement MPLS TTL, only applies to packets that contain specific MPLS
> +headers.
> +
> +.. _table_rte_flow_action_mpls_ttl_dec:
> +
> +.. table:: MPLS_TTL_DEC
> +
> + +---------------+---------------------------------------------+
> + | Field | Value |
> + +===============+=============================================+
> + | ``dir_level`` | Specify the level of MPLS header. |
> + | | direction (1b) |
> + | | 0: match start from outermost. |
> + | | 1: match start from innermost. |
> + | | level: (31b) |
> + | | 0: outermost or innermost MPLS header |
> + | | 1: next to outmost or innermost MPLS header |
> + | | 2: and so on ... |
> + +---------------+---------------------------------------------+
No need to document dir and level for the above reasons.
You must describe how it's an OpenFlow action and provide a link to the
relevant OF specification.
> +
> +Action: ``IP_TTL_DEC``
> +^^^^^^^^^^^^^^^^^^^^^^
> +
> +Decrement IPv4 TTL or IPv6 hop limit field and update the IP checksum,
> +only applies to packets that contain specific MPLS headers.
> +
> +.. _table_rte_flow_action_ip_ttl_dec:
> +
> +.. table:: IP_TTL_DEC
> +
> + +---------------+----------------------------------------------------------+
> + | Field | Value |
> + +===============+==========================================================+
> + | ``dir_level`` | Specify the level of IPv4 or IPv6 header. |
> + | | direction (1b) |
> + | | 0: match start from outermost. |
> + | | 1: match start from innermost. |
> + | | level: (31b) |
> + | | 0: outermost or innermost Ipv4 or IPv6 header |
> + | | 1: next to outmost or innermost MPLS IPv4 or IPv6 header |
> + | | 2: and so on ... |
> + +---------------+----------------------------------------------------------+
Ditto.
> +
> +Action: ``TTL_COPY_OUT``
> +^^^^^^^^^^^^^^^^^^^^^^^^
> +
> +Copy the TTL from next-to-outermost to outermost header with TTL, copy can
> +be IP to IP, MPLS to MPLS or IP to MPLS, only applies packets that contain
> +required MPLS or IP headers.
> +
> +.. _table_rte_flow_action_ttl_copy_out:
> +
> +.. table:: TTL_COPY_OUT
> +
> + +---------------+
> + | Field |
> + +===============+
> + | no properties |
> + +---------------+
Same comment as above re linking to OpenFlow.
> +
> +Action: ``TTL_COPY_IN``
> +^^^^^^^^^^^^^^^^^^^^^^^
> +
> +Copy the TTL from outermost to next-to-outermost header with TTL, copy can
> +be IP to IP, MPLS to MPLS or MPLS to IP, only applies packets that contain
> +required MPLS or IP headers.
> +
> +.. _table_rte_flow_action_ttl_copy_in:
> +
> +.. table:: TTL_COPY_IN
> +
> + +---------------+
> + | Field |
> + +===============+
> + | no properties |
> + +---------------+
Ditto.
> +
> Negative types
> ~~~~~~~~~~~~~~
>
> diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> index 12d78f10b..d2fe6637b 100644
> --- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> +++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> @@ -3449,6 +3449,18 @@ This section lists supported actions and their attributes, if any.
> - ``original {boolean}``: use original VF ID if possible.
> - ``id {unsigned}``: VF ID to redirect packets to.
>
> +- ``mpls_ttl_dec``: decrement MPLS TTL.
> +
> + - ``level``: level of MPLS header.
> +
> +- ``ip_ttl_dec``: decrement IPv4 TTL or IPv6 Hot Limit.
> +
> + - ``level``: level of IPv4 or IPv6 header.
> +
> +- ``ttl_copy_out``: copy TTL outwards.
> +
> +- ``ttl_copy_in``: copy TTL inwards.
"level" must be removed from here also.
> +
> Destroying flow rules
> ~~~~~~~~~~~~~~~~~~~~~
>
> diff --git a/lib/librte_ether/rte_flow.h b/lib/librte_ether/rte_flow.h
> index 2dc95b6b8..ab181cd83 100644
> --- a/lib/librte_ether/rte_flow.h
> +++ b/lib/librte_ether/rte_flow.h
> @@ -1254,6 +1254,37 @@ enum rte_flow_action_type {
> * See struct rte_flow_action_field_set.
> */
> RTE_FLOW_ACTION_TYPE_FIELD_SET,
> +
> + /**
> + * Decrement MPLS TTL, only applies to packets that contain specific
> + * MPLS header.
> + *
> + * See struct rte_flow_action_mpls_ttl_dec.
> + */
> + RTE_FLOW_ACTION_TYPE_MPLS_TTL_DEC,
> +
> + /**
> + * Decrement IPv4 TTL or IPv6 Hop limit field and update the IP
> + * checksum, only applies to packets that contain specific IPv4
> + * or IPv6 header.
> + *
> + * See struct rte_flow_action_ip_ttl_dec.
> + */
> + RTE_FLOW_ACTION_TYPE_IP_TTL_DEC,
> +
> + /**
> + * Copy the TTL from next-to-outermost to outermost header with TTL,
> + * copy can be IP to IP, MPLS to MPLS or IP to MPLS, only applies
> + * packets that contain required protocol headers.
As for other actions, please add:
No associated configuration structure.
> + */
> + RTE_FLOW_ACTION_TYPE_TTL_COPY_OUT,
> +
> + /**
> + * Copy the TTL from outermost to next-to-outermost header with TTL,
> + * copy can be IP to IP, MPLS to MPLS or MPLS to IP, only applies
> + * packets that contain required protocol headers.
Ditto.
> + */
> + RTE_FLOW_ACTION_TYPE_TTL_COPY_IN,
> };
>
> /**
> @@ -1424,6 +1455,52 @@ struct rte_flow_action_field_set {
> };
>
> /**
> + * RTE_FLOW_ACTION_TYPE_MPLS_TTL_DEC
> + *
> + * Decrement MPLS TTL, only applies to packets that contain specific
> + * MPLS header.
> + */
> +struct rte_flow_action_mpls_ttl_dec {
> + /**
> + * Specify the level of MPLS header.
> + *
> + * direction (1b)
> + * 0: match start from outermost.
> + * 1: match start from innermost.
> + *
> + * level (31b)
> + * 0: outermost|innermost MPLS header.
> + * 1: next to outermost|innermost MPLS header.
> + * 2: and so on ...
> + */
> + uint32_t dir_level;
> +
> +};
As described above, this structure must be removed.
> +
> +/**
> + * RTE_FLOW_ACTION_TYPE_IP_TTL_DEC
> + *
> + * Decrement IPv4 TTL or IPv6 hop limit field and update the IP
> + * checksum, only applies to packets that contain specific IPv4
> + * or IPv6 header.
> + */
> +struct rte_flow_action_ip_ttl_dec {
> + /**
> + * Specify the level of IPv4 or IPv6 header.
> + *
> + * direction (1b)
> + * 0: match start from outermost.
> + * 1: match start from innermost.
> + *
> + * level (31b)
> + * 0: outermost|innermost IPv4 or IPv6 header.
> + * 1: next to outermost|innermost IPv4 or IPv6 header.
> + * 2: and so on ...
> + */
> + uint32_t dir_level;
> +};
Ditto.
> +
> +/**
> * Definition of a single action.
> *
> * A list of actions is terminated by a END action.
> --
> 2.13.6
>
--
Adrien Mazarguil
6WIND
next prev parent reply other threads:[~2018-04-19 14:49 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-28 23:29 [dpdk-dev] [PATCH 0/4] rte_flow extension for vSwitch acceleration Qi Zhang
2018-03-28 23:29 ` [dpdk-dev] [PATCH 1/4] ether: add flow action to redirect packet in a switch domain Qi Zhang
2018-03-29 10:48 ` Pattan, Reshma
2018-03-29 11:20 ` Pattan, Reshma
2018-03-28 23:29 ` [dpdk-dev] [PATCH 2/4] ether: add flow last hit query support Qi Zhang
2018-03-28 23:29 ` [dpdk-dev] [PATCH 3/4] ether: add more protocol support in flow API Qi Zhang
2018-03-29 14:32 ` Pattan, Reshma
2018-03-28 23:29 ` [dpdk-dev] [PATCH 4/4] ether: add packet modification aciton " Qi Zhang
2018-03-29 15:23 ` Pattan, Reshma
2018-04-02 3:35 ` Zhang, Qi Z
2018-04-01 21:19 ` [dpdk-dev] [PATCH v2 0/4] rte_flow extension for vSwitch acceleration Qi Zhang
2018-04-01 21:19 ` [dpdk-dev] [PATCH v2 1/4] ether: add flow action to redirect packet to a port Qi Zhang
2018-04-11 16:30 ` Adrien Mazarguil
2018-04-01 21:19 ` [dpdk-dev] [PATCH v2 2/4] ether: add flow last hit query support Qi Zhang
2018-04-11 16:31 ` Adrien Mazarguil
2018-04-01 21:19 ` [dpdk-dev] [PATCH v2 3/4] ether: add more protocol support in flow API Qi Zhang
2018-04-11 16:32 ` Adrien Mazarguil
2018-04-12 5:12 ` Zhang, Qi Z
2018-04-12 9:19 ` Adrien Mazarguil
2018-04-12 10:00 ` Zhang, Qi Z
2018-04-01 21:19 ` [dpdk-dev] [PATCH v2 4/4] ether: add packet modification aciton " Qi Zhang
2018-04-12 7:03 ` Adrien Mazarguil
2018-04-12 8:50 ` Zhang, Qi Z
2018-04-12 10:22 ` Adrien Mazarguil
2018-04-13 13:47 ` Zhang, Qi Z
2018-04-16 13:30 ` Adrien Mazarguil
2018-04-16 15:03 ` Zhang, Qi Z
2018-04-17 9:55 ` Adrien Mazarguil
2018-04-17 10:32 ` Zhang, Qi Z
2018-04-10 14:12 ` [dpdk-dev] [PATCH v2 0/4] rte_flow extension for vSwitch acceleration Thomas Monjalon
2018-04-16 5:16 ` [dpdk-dev] [PATCH v3 " Qi Zhang
2018-04-16 5:16 ` [dpdk-dev] [PATCH v3 1/4] ethdev: add more protocol support in flow API Qi Zhang
2018-04-16 5:16 ` [dpdk-dev] [PATCH v3 2/4] ethdev: add packet field set aciton " Qi Zhang
2018-04-16 5:16 ` [dpdk-dev] [PATCH v3 3/4] ethdev: add TTL change actions " Qi Zhang
2018-04-16 5:48 ` Shahaf Shuler
2018-04-16 8:12 ` Adrien Mazarguil
2018-04-16 8:56 ` Shahaf Shuler
2018-04-16 9:59 ` Adrien Mazarguil
2018-04-16 5:16 ` [dpdk-dev] [PATCH v3 4/4] ethdev: add VLAN and MPLS pop push action " Qi Zhang
2018-04-16 6:10 ` [dpdk-dev] [PATCH v3 0/4] rte_flow extension for vSwitch acceleration Qi Zhang
2018-04-16 6:10 ` [dpdk-dev] [PATCH v3 1/4] ethdev: add more protocol support in flow API Qi Zhang
2018-04-19 14:48 ` Adrien Mazarguil
2018-04-16 6:10 ` [dpdk-dev] [PATCH v3 2/4] ethdev: add packet field set aciton " Qi Zhang
2018-04-19 14:48 ` Adrien Mazarguil
2018-04-20 2:24 ` Zhang, Qi Z
2018-04-20 8:54 ` Adrien Mazarguil
2018-04-16 6:10 ` [dpdk-dev] [PATCH v3 3/4] ethdev: add TTL change actions " Qi Zhang
2018-04-19 14:48 ` Adrien Mazarguil [this message]
2018-04-16 6:10 ` [dpdk-dev] [PATCH v3 4/4] ethdev: add VLAN and MPLS pop push action " Qi Zhang
2018-04-17 7:34 ` Shahaf Shuler
2018-04-19 14:49 ` Adrien Mazarguil
2018-04-23 6:36 ` [dpdk-dev] [PATCH v4 0/3] rte_flow extension for vSwitch acceleration Qi Zhang
2018-04-23 6:36 ` [dpdk-dev] [PATCH v4 1/3] ethdev: add more protocol support in flow API Qi Zhang
2018-04-23 6:36 ` [dpdk-dev] [PATCH v4 2/3] ethdev: add TTL change actions " Qi Zhang
2018-04-23 6:36 ` [dpdk-dev] [PATCH v4 3/3] ethdev: add VLAN and MPLS " Qi Zhang
2018-04-24 15:58 ` [dpdk-dev] [PATCH v5 0/3] rte_flow extension for vSwitch acceleration Adrien Mazarguil
2018-04-24 15:58 ` [dpdk-dev] [PATCH v5 1/3] ethdev: add neighbor discovery support to flow API Adrien Mazarguil
2018-04-24 15:59 ` [dpdk-dev] [PATCH v5 2/3] ethdev: add TTL change actions " Adrien Mazarguil
2018-04-24 15:59 ` [dpdk-dev] [PATCH v5 3/3] ethdev: add VLAN and MPLS " Adrien Mazarguil
2018-04-25 13:54 ` [dpdk-dev] [PATCH v5 0/3] rte_flow extension for vSwitch acceleration Zhang, Qi Z
2018-04-25 22:44 ` Ferruh Yigit
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