[dpdk-dev] [PATCH v8 3/7] ethdev: add GTP items to support flow API
Sean Harte
seanbh at gmail.com
Thu Oct 5 13:50:35 CEST 2017
On 5 October 2017 at 09:14, Beilei Xing <beilei.xing at intel.com> wrote:
> This patch adds GTP, GTPC and GTPU items for
> generic flow API, and also exposes item fields
> through the flow command.
>
> Signed-off-by: Beilei Xing <beilei.xing at intel.com>
> Acked-by: Adrien Mazarguil <adrien.mazarguil at 6wind.com>
> Acked-by: Jingjing Wu <jingjing.wu at intel.com>
> ---
> app/test-pmd/cmdline_flow.c | 40 ++++++++++++++++++++++
> app/test-pmd/config.c | 3 ++
> doc/guides/prog_guide/rte_flow.rst | 17 ++++++++++
> doc/guides/testpmd_app_ug/testpmd_funcs.rst | 4 +++
> lib/librte_ether/rte_flow.h | 52 +++++++++++++++++++++++++++++
> 5 files changed, 116 insertions(+)
>
> diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c
> index a17a004..26c3e4f 100644
> --- a/app/test-pmd/cmdline_flow.c
> +++ b/app/test-pmd/cmdline_flow.c
> @@ -171,6 +171,10 @@ enum index {
> ITEM_GRE_PROTO,
> ITEM_FUZZY,
> ITEM_FUZZY_THRESH,
> + ITEM_GTP,
> + ITEM_GTP_TEID,
> + ITEM_GTPC,
> + ITEM_GTPU,
>
> /* Validate/create actions. */
> ACTIONS,
> @@ -451,6 +455,9 @@ static const enum index next_item[] = {
> ITEM_MPLS,
> ITEM_GRE,
> ITEM_FUZZY,
> + ITEM_GTP,
> + ITEM_GTPC,
> + ITEM_GTPU,
> ZERO,
> };
>
> @@ -588,6 +595,12 @@ static const enum index item_gre[] = {
> ZERO,
> };
>
> +static const enum index item_gtp[] = {
> + ITEM_GTP_TEID,
> + ITEM_NEXT,
> + ZERO,
> +};
> +
> static const enum index next_action[] = {
> ACTION_END,
> ACTION_VOID,
> @@ -1421,6 +1434,33 @@ static const struct token token_list[] = {
> .args = ARGS(ARGS_ENTRY(struct rte_flow_item_fuzzy,
> thresh)),
> },
> + [ITEM_GTP] = {
> + .name = "gtp",
> + .help = "match GTP header",
> + .priv = PRIV_ITEM(GTP, sizeof(struct rte_flow_item_gtp)),
> + .next = NEXT(item_gtp),
> + .call = parse_vc,
> + },
> + [ITEM_GTP_TEID] = {
> + .name = "teid",
> + .help = "tunnel endpoint identifier",
> + .next = NEXT(item_gtp, NEXT_ENTRY(UNSIGNED), item_param),
> + .args = ARGS(ARGS_ENTRY_HTON(struct rte_flow_item_gtp, teid)),
> + },
> + [ITEM_GTPC] = {
> + .name = "gtpc",
> + .help = "match GTP header",
> + .priv = PRIV_ITEM(GTPC, sizeof(struct rte_flow_item_gtp)),
> + .next = NEXT(item_gtp),
> + .call = parse_vc,
> + },
> + [ITEM_GTPU] = {
> + .name = "gtpu",
> + .help = "match GTP header",
> + .priv = PRIV_ITEM(GTPU, sizeof(struct rte_flow_item_gtp)),
> + .next = NEXT(item_gtp),
> + .call = parse_vc,
> + },
>
> /* Validate/create actions. */
> [ACTIONS] = {
> diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
> index 60a8d07..4ec8f0d 100644
> --- a/app/test-pmd/config.c
> +++ b/app/test-pmd/config.c
> @@ -952,6 +952,9 @@ static const struct {
> MK_FLOW_ITEM(MPLS, sizeof(struct rte_flow_item_mpls)),
> MK_FLOW_ITEM(GRE, sizeof(struct rte_flow_item_gre)),
> MK_FLOW_ITEM(FUZZY, sizeof(struct rte_flow_item_fuzzy)),
> + MK_FLOW_ITEM(GTP, sizeof(struct rte_flow_item_gtp)),
> + MK_FLOW_ITEM(GTPC, sizeof(struct rte_flow_item_gtp)),
> + MK_FLOW_ITEM(GTPU, sizeof(struct rte_flow_item_gtp)),
> };
>
> /** Compute storage space needed by item specification. */
> diff --git a/doc/guides/prog_guide/rte_flow.rst b/doc/guides/prog_guide/rte_flow.rst
> index 662a912..73f12ee 100644
> --- a/doc/guides/prog_guide/rte_flow.rst
> +++ b/doc/guides/prog_guide/rte_flow.rst
> @@ -955,6 +955,23 @@ Usage example, fuzzy match a TCPv4 packets:
> | 4 | END |
> +-------+----------+
>
> +Item: ``GTP``, ``GTPC``, ``GTPU``
> +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> +
> +Matches a GTPv1 header.
> +
> +Note: GTP, GTPC and GTPU use the same structure. GTPC and GTPU item
> +are defined for a user-friendly API when creating GTP-C and GTP-U
> +flow rules.
> +
> +- ``v_pt_rsv_flags``: version (3b), protocol type (1b), reserved (1b),
> + extension header flag (1b), sequence number flag (1b), N-PDU number
> + flag (1b).
> +- ``msg_type``: message type.
> +- ``msg_len``: message length.
> +- ``teid``: tunnel endpoint identifier.
> +- Default ``mask`` matches teid only.
> +
> Actions
> ~~~~~~~
>
> diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> index aeef3e1..32223ca 100644
> --- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> +++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> @@ -2721,6 +2721,10 @@ This section lists supported pattern items and their attributes, if any.
>
> - ``thresh {unsigned}``: accuracy threshold.
>
> +- ``gtp``, ``gtpc``, ``gtpu``: match GTPv1 header.
> +
> + - ``teid {unsigned}``: tunnel endpoint identifier.
> +
> Actions list
> ^^^^^^^^^^^^
>
> diff --git a/lib/librte_ether/rte_flow.h b/lib/librte_ether/rte_flow.h
> index bba6169..b1a1b97 100644
> --- a/lib/librte_ether/rte_flow.h
> +++ b/lib/librte_ether/rte_flow.h
> @@ -309,6 +309,33 @@ enum rte_flow_item_type {
> * See struct rte_flow_item_fuzzy.
> */
> RTE_FLOW_ITEM_TYPE_FUZZY,
> +
> + /**
> + * Matches a GTP header.
> + *
> + * Configure flow for GTP packets.
> + *
> + * See struct rte_flow_item_gtp.
> + */
> + RTE_FLOW_ITEM_TYPE_GTP,
> +
> + /**
> + * Matches a GTP header.
> + *
> + * Configure flow for GTP-C packets.
> + *
> + * See struct rte_flow_item_gtp.
> + */
> + RTE_FLOW_ITEM_TYPE_GTPC,
> +
> + /**
> + * Matches a GTP header.
> + *
> + * Configure flow for GTP-U packets.
> + *
> + * See struct rte_flow_item_gtp.
> + */
> + RTE_FLOW_ITEM_TYPE_GTPU,
> };
>
> /**
> @@ -735,6 +762,31 @@ static const struct rte_flow_item_fuzzy rte_flow_item_fuzzy_mask = {
> #endif
>
> /**
> + * RTE_FLOW_ITEM_TYPE_GTP.
> + *
> + * Matches a GTPv1 header.
> + */
> +struct rte_flow_item_gtp {
> + /**
> + * Version (3b), protocol type (1b), reserved (1b),
> + * Extension header flag (1b),
> + * Sequence number flag (1b),
> + * N-PDU number flag (1b).
> + */
> + uint8_t v_pt_rsv_flags;
> + uint8_t msg_type; /**< Message type. */
> + rte_be16_t msg_len; /**< Message length. */
> + rte_be32_t teid; /**< Tunnel endpoint identifier. */
> +};
> +
> +/** Default mask for RTE_FLOW_ITEM_TYPE_GTP. */
> +#ifndef __cplusplus
> +static const struct rte_flow_item_gtp rte_flow_item_gtp_mask = {
> + .teid = RTE_BE32(0xffffffff),
> +};
> +#endif
> +
> +/**
> * Matching pattern item definition.
> *
> * A pattern is formed by stacking items starting from the lowest protocol
> --
> 2.5.5
>
Reviewed-by: Seán Harte <seanbh at gmail.com>
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