Hi Adrien,
Can you please review?
I'll appreciate receiving any comments soon.
Thanks,
Dekel
> -----Original Message-----
> From: Dekel Peled <dek...@mellanox.com>
> Sent: Thursday, March 21, 2019 4:19 PM
> To: Adrien Mazarguil <adrien.mazarg...@6wind.com>;
> wenzhuo...@intel.com; jingjing...@intel.com;
> bernard.iremon...@intel.com; Yongseok Koh <ys...@mellanox.com>;
> Shahaf Shuler <shah...@mellanox.com>
> Cc: dev@dpdk.org; Ori Kam <or...@mellanox.com>; Dekel Peled
> <dek...@mellanox.com>
> Subject: [PATCH 1/3] ethdev: add actions to modify TCP header fields
>
> Add actions:
> - INC_TCP_SEQ - Increase sequence number in the outermost TCP header.
> - DEC_TCP_SEQ - Decrease sequence number in the outermost TCP header.
> - INC_TCP_ACK - Increase acknowledgment number in the outermost TCP
> header.
> - DEC_TCP_ACK - Decrease acknowledgment number in the outermost TCP
> header.
>
> Original work by Xiaoyu Min.
>
> Signed-off-by: Dekel Peled <dek...@mellanox.com>
> ---
> doc/guides/prog_guide/rte_flow.rst | 72
> ++++++++++++++++++++++++++++++++++++++
> lib/librte_ethdev/rte_flow.c | 8 +++++
> lib/librte_ethdev/rte_flow.h | 60
> +++++++++++++++++++++++++++++++
> 3 files changed, 140 insertions(+)
>
> diff --git a/doc/guides/prog_guide/rte_flow.rst
> b/doc/guides/prog_guide/rte_flow.rst
> index 0203f4f..bdb817a 100644
> --- a/doc/guides/prog_guide/rte_flow.rst
> +++ b/doc/guides/prog_guide/rte_flow.rst
> @@ -2345,6 +2345,78 @@ Otherwise, RTE_FLOW_ERROR_TYPE_ACTION
> error will be returned.
> | ``mac_addr`` | MAC address |
> +--------------+---------------+
>
> +Action: ``INC_TCP_SEQ``
> +^^^^^^^^^^^^^^^^^^^^^^^
> +
> +Increase sequence number in the outermost TCP header.
> +
> +It must be used with a valid RTE_FLOW_ITEM_TYPE_TCP flow pattern item.
> +Otherwise, RTE_FLOW_ERROR_TYPE_ACTION error will be returned.
> +
> +.. _table_rte_flow_action_inc_tcp_seq:
> +
> +.. table:: INC_TCP_SEQ
> +
> + +-----------+--------------------------------------------+
> + | Field | Value |
> +
> +===========+============================================+
> + | ``value`` | Value to increase TCP sequence number by |
> + +-----------+--------------------------------------------+
> +
> +Action: ``DEC_TCP_SEQ``
> +^^^^^^^^^^^^^^^^^^^^^^^
> +
> +Decrease sequence number in the outermost TCP header.
> +
> +It must be used with a valid RTE_FLOW_ITEM_TYPE_TCP flow pattern item.
> +Otherwise, RTE_FLOW_ERROR_TYPE_ACTION error will be returned.
> +
> +.. _table_rte_flow_action_dec_tcp_seq:
> +
> +.. table:: DEC_TCP_SEQ
> +
> + +-----------+--------------------------------------------+
> + | Field | Value |
> +
> +===========+============================================+
> + | ``value`` | Value to decrease TCP sequence number by |
> + +-----------+--------------------------------------------+
> +
> +Action: ``INC_TCP_ACK``
> +^^^^^^^^^^^^^^^^^^^^^^^
> +
> +Increase acknowledgment number in the outermost TCP header.
> +
> +It must be used with a valid RTE_FLOW_ITEM_TYPE_TCP flow pattern item.
> +Otherwise, RTE_FLOW_ERROR_TYPE_ACTION error will be returned.
> +
> +.. _table_rte_flow_action_inc_tcp_ack:
> +
> +.. table:: INC_TCP_ACK
> +
> + +-----------+--------------------------------------------------+
> + | Field | Value |
> +
> +===========+=============================================
> =====+
> + | ``value`` | Value to increase TCP acknowledgment number by |
> + +-----------+--------------------------------------------------+
> +
> +Action: ``DEC_TCP_ACK``
> +^^^^^^^^^^^^^^^^^^^^^^^
> +
> +Decrease acknowledgment number in the outermost TCP header.
> +
> +It must be used with a valid RTE_FLOW_ITEM_TYPE_TCP flow pattern item.
> +Otherwise, RTE_FLOW_ERROR_TYPE_ACTION error will be returned.
> +
> +.. _table_rte_flow_action_dec_tcp_ack:
> +
> +.. table:: DEC_TCP_ACK
> +
> + +-----------+--------------------------------------------------+
> + | Field | Value |
> +
> +===========+=============================================
> =====+
> + | ``value`` | Value to decrease TCP acknowledgment number by |
> + +-----------+--------------------------------------------------+
> +
> Negative types
> ~~~~~~~~~~~~~~
>
> diff --git a/lib/librte_ethdev/rte_flow.c b/lib/librte_ethdev/rte_flow.c index
> 3277be1..589d0b9 100644
> --- a/lib/librte_ethdev/rte_flow.c
> +++ b/lib/librte_ethdev/rte_flow.c
> @@ -143,6 +143,14 @@ struct rte_flow_desc_data {
> MK_FLOW_ACTION(SET_TTL, sizeof(struct rte_flow_action_set_ttl)),
> MK_FLOW_ACTION(SET_MAC_SRC, sizeof(struct
> rte_flow_action_set_mac)),
> MK_FLOW_ACTION(SET_MAC_DST, sizeof(struct
> rte_flow_action_set_mac)),
> + MK_FLOW_ACTION(INC_TCP_SEQ,
> + sizeof(struct rte_flow_action_modify_tcp_seq)),
> + MK_FLOW_ACTION(DEC_TCP_SEQ,
> + sizeof(struct rte_flow_action_modify_tcp_seq)),
> + MK_FLOW_ACTION(INC_TCP_ACK,
> + sizeof(struct rte_flow_action_modify_tcp_ack)),
> + MK_FLOW_ACTION(DEC_TCP_ACK,
> + sizeof(struct rte_flow_action_modify_tcp_ack)),
> };
>
> static int
> diff --git a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h index
> c0fe879..74cd03e 100644
> --- a/lib/librte_ethdev/rte_flow.h
> +++ b/lib/librte_ethdev/rte_flow.h
> @@ -1651,6 +1651,46 @@ enum rte_flow_action_type {
> * See struct rte_flow_action_set_mac.
> */
> RTE_FLOW_ACTION_TYPE_SET_MAC_DST,
> +
> + /**
> + * Increase sequence number in the outermost TCP header.
> + *
> + * If flow pattern does not define a valid
> RTE_FLOW_ITEM_TYPE_TCP,
> + * the PMD should return a RTE_FLOW_ERROR_TYPE_ACTION error.
> + *
> + * See struct rte_flow_action_modify_tcp_seq
> + */
> + RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ,
> +
> + /**
> + * Decrease sequence number in the outermost TCP header.
> + *
> + * If flow pattern does not define a valid
> RTE_FLOW_ITEM_TYPE_TCP,
> + * the PMD should return a RTE_FLOW_ERROR_TYPE_ACTION error.
> + *
> + * See struct rte_flow_action_modify_tcp_seq
> + */
> + RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ,
> +
> + /**
> + * Increase acknowledgment number in the outermost TCP header.
> + *
> + * If flow pattern does not define a valid
> RTE_FLOW_ITEM_TYPE_TCP,
> + * the PMD should return a RTE_FLOW_ERROR_TYPE_ACTION error.
> + *
> + * See struct rte_flow_action_modify_tcp_ack
> + */
> + RTE_FLOW_ACTION_TYPE_INC_TCP_ACK,
> +
> + /**
> + * Decrease acknowledgment number in the outermost TCP header.
> + *
> + * If flow pattern does not define a valid
> RTE_FLOW_ITEM_TYPE_TCP,
> + * the PMD should return a RTE_FLOW_ERROR_TYPE_ACTION error.
> + *
> + * See struct rte_flow_action_modify_tcp_ack
> + */
> + RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK,
> };
>
> /**
> @@ -2122,6 +2162,26 @@ struct rte_flow_action_set_mac {
> uint8_t mac_addr[ETHER_ADDR_LEN];
> };
>
> +/**
> + * RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ
> + * RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ
> + *
> + * Increase/Decrease outermost TCP's sequence number */ struct
> +rte_flow_action_modify_tcp_seq {
> + rte_be32_t value;
> +};
> +
> +/**
> + * RTE_FLOW_ACTION_TYPE_INC_TCP_ACK
> + * RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK
> + *
> + * Increase/Decrease TCP's acknowledgment number.
> + */
> +struct rte_flow_action_modify_tcp_ack {
> + rte_be32_t value;
> +};
> +
> /*
> * Definition of a single action.
> *
> --
> 1.8.3.1
