From patchwork Sun Jun 30 07:59:08 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dekel Peled X-Patchwork-Id: 55667 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 07DEF1B945; Sun, 30 Jun 2019 10:00:13 +0200 (CEST) Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id 2BF81374C for ; Sun, 30 Jun 2019 10:00:04 +0200 (CEST) Received: from Internal Mail-Server by MTLPINE2 (envelope-from dekelp@mellanox.com) with ESMTPS (AES256-SHA encrypted); 30 Jun 2019 11:00:00 +0300 Received: from mtl-vdi-280.wap.labs.mlnx. (mtl-vdi-280.wap.labs.mlnx [10.128.130.87]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id x5U7xxXF027511; Sun, 30 Jun 2019 11:00:00 +0300 From: Dekel Peled To: adrien.mazarguil@6wind.com, wenzhuo.lu@intel.com, jingjing.wu@intel.com, bernard.iremonger@intel.com, yskoh@mellanox.com, shahafs@mellanox.com, viacheslavo@mellanox.com, arybchenko@solarflare.com Cc: dev@dpdk.org, orika@mellanox.com Date: Sun, 30 Jun 2019 10:59:08 +0300 Message-Id: <8b43b7e77d467429b45cb86eb09e218d721dd0de.1561872899.git.dekelp@mellanox.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: References: Subject: [dpdk-dev] [PATCH v8 1/3] ethdev: add actions to modify TCP header fields X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list 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. This patch introduces a new approach, using a simple integer instead of using an action-specific structure for each of these actions. This approach can be later applied to modify existing actions which require only a single integer. Signed-off-by: Dekel Peled Acked-by: Andrew Rybchenko --- doc/guides/prog_guide/rte_flow.rst | 35 ++++++++++++++++++++++++++++++++++- lib/librte_ethdev/rte_flow.c | 4 ++++ lib/librte_ethdev/rte_flow.h | 34 +++++++++++++++++++++++++++++++++- 3 files changed, 71 insertions(+), 2 deletions(-) diff --git a/doc/guides/prog_guide/rte_flow.rst b/doc/guides/prog_guide/rte_flow.rst index a34d012..783a904 100644 --- a/doc/guides/prog_guide/rte_flow.rst +++ b/doc/guides/prog_guide/rte_flow.rst @@ -1214,7 +1214,8 @@ Actions ~~~~~~~ Each possible action is represented by a type. Some have associated -configuration structures. Several actions combined in a list can be assigned +configuration structures, some others use a simple integer. +Several actions combined in a list can be assigned to a flow rule and are performed in order. They fall in three categories: @@ -2345,6 +2346,38 @@ 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. +Value to increase TCP sequence number by is a big-endian 32 bit integer. + +Using this action on non-matching traffic will result in undefined behavior. + +Action: ``DEC_TCP_SEQ`` +^^^^^^^^^^^^^^^^^^^^^^^ + +Decrease sequence number in the outermost TCP header. +Value to decrease TCP sequence number by is a big-endian 32 bit integer. + +Using this action on non-matching traffic will result in undefined behavior. + +Action: ``INC_TCP_ACK`` +^^^^^^^^^^^^^^^^^^^^^^^ + +Increase acknowledgment number in the outermost TCP header. +Value to increase TCP acknowledgment number by is a big-endian 32 bit integer. + +Using this action on non-matching traffic will result in undefined behavior. + +Action: ``DEC_TCP_ACK`` +^^^^^^^^^^^^^^^^^^^^^^^ + +Decrease acknowledgment number in the outermost TCP header. +Value to decrease TCP acknowledgment number by is a big-endian 32 bit integer. + +Using this action on non-matching traffic will result in undefined behavior. + Negative types ~~~~~~~~~~~~~~ diff --git a/lib/librte_ethdev/rte_flow.c b/lib/librte_ethdev/rte_flow.c index 3277be1..0c9f6c6 100644 --- a/lib/librte_ethdev/rte_flow.c +++ b/lib/librte_ethdev/rte_flow.c @@ -143,6 +143,10 @@ 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(rte_be32_t)), + MK_FLOW_ACTION(DEC_TCP_SEQ, sizeof(rte_be32_t)), + MK_FLOW_ACTION(INC_TCP_ACK, sizeof(rte_be32_t)), + MK_FLOW_ACTION(DEC_TCP_ACK, sizeof(rte_be32_t)), }; static int diff --git a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h index f3a8fb1..f5db6b6 100644 --- a/lib/librte_ethdev/rte_flow.h +++ b/lib/librte_ethdev/rte_flow.h @@ -1650,6 +1650,38 @@ 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. + * + * Using this action on non-matching traffic will result in + * undefined behavior. + */ + RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ, + + /** + * Decrease sequence number in the outermost TCP header. + * + * Using this action on non-matching traffic will result in + * undefined behavior. + */ + RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ, + + /** + * Increase acknowledgment number in the outermost TCP header. + * + * Using this action on non-matching traffic will result in + * undefined behavior. + */ + RTE_FLOW_ACTION_TYPE_INC_TCP_ACK, + + /** + * Decrease acknowledgment number in the outermost TCP header. + * + * Using this action on non-matching traffic will result in + * undefined behavior. + */ + RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK, }; /** @@ -2140,7 +2172,7 @@ struct rte_flow_action_set_mac { */ struct rte_flow_action { enum rte_flow_action_type type; /**< Action type. */ - const void *conf; /**< Pointer to action configuration structure. */ + const void *conf; /**< Pointer to action configuration. */ }; /**