On 29 September 2017 at 06:18, Beilei Xing <beilei.x...@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.x...@intel.com>
> Acked-by: Adrien Mazarguil <adrien.mazarg...@6wind.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(+)
<snip>
> /**
> + * 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. */
> +};
In future, you might add support for GTPv2 (which is used since LTE).
Maybe this structure should have v1 in its name to avoid confusion?
> +
> +/** 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
>
