From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dekel Peled Subject: [PATCH v2 1/3] ethdev: add actions to modify TCP header fields Date: Tue, 2 Apr 2019 18:13:19 +0300 Message-ID: <1554218001-62012-2-git-send-email-dekelp@mellanox.com> References: <1553177917-43297-1-git-send-email-dekelp@mellanox.com> Cc: dev@dpdk.org, orika@mellanox.com, dekelp@mellanox.com To: adrien.mazarguil@6wind.com, wenzhuo.lu@intel.com, jingjing.wu@intel.com, bernard.iremonger@intel.com, yskoh@mellanox.com, shahafs@mellanox.com Return-path: Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id 8B0C611A4 for ; Tue, 2 Apr 2019 17:15:05 +0200 (CEST) In-Reply-To: <1553177917-43297-1-git-send-email-dekelp@mellanox.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 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 --- doc/guides/prog_guide/rte_flow.rst | 72 ++++++++++++++++++++++++++++++++++++++ lib/librte_ethdev/rte_flow.c | 8 +++++ lib/librte_ethdev/rte_flow.h | 70 ++++++++++++++++++++++++++++++++++++ 3 files changed, 150 insertions(+) diff --git a/doc/guides/prog_guide/rte_flow.rst b/doc/guides/prog_guide/rte_flow.rst index 0203f4f..5bebb29 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. + +If this action is used without a valid RTE_FLOW_ITEM_TYPE_TCP flow pattern item, +behavior is unspecified, depending on PMD implementation. + +.. _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. + +If this action is used without a valid RTE_FLOW_ITEM_TYPE_TCP flow pattern item, +behavior is unspecified, depending on PMD implementation. + +.. _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. + +If this action is used without a valid RTE_FLOW_ITEM_TYPE_TCP flow pattern item, +behavior is unspecified, depending on PMD implementation. + +.. _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. + +If this action is used without a valid RTE_FLOW_ITEM_TYPE_TCP flow pattern item, +behavior is unspecified, depending on PMD implementation. + +.. _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..eca7544 100644 --- a/lib/librte_ethdev/rte_flow.h +++ b/lib/librte_ethdev/rte_flow.h @@ -1651,6 +1651,50 @@ 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 this action is used without a valid RTE_FLOW_ITEM_TYPE_TCP + * flow pattern item, behavior is unspecified, depending on + * PMD implementation. + * + * See struct rte_flow_action_modify_tcp_seq + */ + RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ, + + /** + * Decrease sequence number in the outermost TCP header. + * + * If this action is used without a valid RTE_FLOW_ITEM_TYPE_TCP + * flow pattern item, behavior is unspecified, depending on + * PMD implementation. + * + * See struct rte_flow_action_modify_tcp_seq + */ + RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ, + + /** + * Increase acknowledgment number in the outermost TCP header. + * + * If this action is used without a valid RTE_FLOW_ITEM_TYPE_TCP + * flow pattern item, behavior is unspecified, depending on + * PMD implementation. + * + * See struct rte_flow_action_modify_tcp_ack + */ + RTE_FLOW_ACTION_TYPE_INC_TCP_ACK, + + /** + * Decrease acknowledgment number in the outermost TCP header. + * + * If this action is used without a valid RTE_FLOW_ITEM_TYPE_TCP + * flow pattern item, behavior is unspecified, depending on + * PMD implementation. + * + * See struct rte_flow_action_modify_tcp_ack + */ + RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK, }; /** @@ -2122,6 +2166,32 @@ struct rte_flow_action_set_mac { uint8_t mac_addr[ETHER_ADDR_LEN]; }; +/** + * @warning + * @b EXPERIMENTAL: this structure may change without prior notice + * + * RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ + * RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ + * + * Increase/Decrease outermost TCP sequence number + */ +struct rte_flow_action_modify_tcp_seq { + rte_be32_t value; /**< Value to increase/decrease by. */ +}; + +/** + * @warning + * @b EXPERIMENTAL: this structure may change without prior notice + * + * RTE_FLOW_ACTION_TYPE_INC_TCP_ACK + * RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK + * + * Increase/Decrease outermost TCP acknowledgment number. + */ +struct rte_flow_action_modify_tcp_ack { + rte_be32_t value; /**< Value to increase/decrease by. */ +}; + /* * Definition of a single action. * -- 1.8.3.1