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Thu, 30 Nov 2023 08:32:22 -0800 From: Michael Baum To: CC: Ori Kam , Aman Singh , "Yuying Zhang" , Ferruh Yigit , "Thomas Monjalon" Subject: [PATCH v3 1/2] ethdev: add random item support Date: Thu, 30 Nov 2023 18:32:14 +0200 Message-ID: <20231130163215.666239-2-michaelba@nvidia.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231130163215.666239-1-michaelba@nvidia.com> References: <20230911074149.697944-1-michaelba@nvidia.com> <20231130163215.666239-1-michaelba@nvidia.com> MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL6PEPF0001AB75:EE_|PH7PR12MB6393:EE_ X-MS-Office365-Filtering-Correlation-Id: c0d670f6-93c9-4c2d-89ff-08dbf1c1fa16 X-LD-Processed: 43083d15-7273-40c1-b7db-39efd9ccc17a,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160; 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This item enables to match on some random value as a part of flow rule. Signed-off-by: Michael Baum --- doc/guides/nics/features/default.ini | 1 + doc/guides/prog_guide/rte_flow.rst | 13 ++++++++++ doc/guides/rel_notes/release_24_03.rst | 4 +++ lib/ethdev/rte_flow.c | 1 + lib/ethdev/rte_flow.h | 35 +++++++++++++++++++++++++- 5 files changed, 53 insertions(+), 1 deletion(-) diff --git a/doc/guides/nics/features/default.ini b/doc/guides/nics/features/default.ini index 806cb033ff..6d50236292 100644 --- a/doc/guides/nics/features/default.ini +++ b/doc/guides/nics/features/default.ini @@ -140,6 +140,7 @@ pppoe_proto_id = ptype = quota = raw = +random = represented_port = sctp = tag = diff --git a/doc/guides/prog_guide/rte_flow.rst b/doc/guides/prog_guide/rte_flow.rst index 627b845bfb..fd7fddb6cd 100644 --- a/doc/guides/prog_guide/rte_flow.rst +++ b/doc/guides/prog_guide/rte_flow.rst @@ -1573,6 +1573,19 @@ Matches the packet type as defined in rte_mbuf_ptype. - ``packet_type``: L2/L3/L4 and tunnel information. +Item: ``RANDOM`` +^^^^^^^^^^^^^^^^ + +Matches a random value. + +The rundom number is generated by PMD, +application can match on either exact value or range of values. +This value is not based on the packet data/headers. +Application shouldn't assume that this value is kept during the life time of +the packet. + +- ``value``: Specific value to match. + Actions ~~~~~~~ diff --git a/doc/guides/rel_notes/release_24_03.rst b/doc/guides/rel_notes/release_24_03.rst index e9c9717706..ab91ce2b21 100644 --- a/doc/guides/rel_notes/release_24_03.rst +++ b/doc/guides/rel_notes/release_24_03.rst @@ -55,6 +55,10 @@ New Features Also, make sure to start the actual text at the margin. ======================================================= +* **Added flow matching of random value.** + + Added ``RTE_FLOW_ITEM_RANDOM`` to match random value. + Removed Items ------------- diff --git a/lib/ethdev/rte_flow.c b/lib/ethdev/rte_flow.c index 549e329558..090b936ca9 100644 --- a/lib/ethdev/rte_flow.c +++ b/lib/ethdev/rte_flow.c @@ -136,6 +136,7 @@ static const struct rte_flow_desc_data rte_flow_desc_item[] = { sizeof(struct rte_flow_item_icmp6_nd_opt_tla_eth)), MK_FLOW_ITEM(MARK, sizeof(struct rte_flow_item_mark)), MK_FLOW_ITEM(META, sizeof(struct rte_flow_item_meta)), + MK_FLOW_ITEM(RANDOM, sizeof(struct rte_flow_item_random)), MK_FLOW_ITEM(TAG, sizeof(struct rte_flow_item_tag)), MK_FLOW_ITEM(GRE_KEY, sizeof(rte_be32_t)), MK_FLOW_ITEM(GRE_OPTION, sizeof(struct rte_flow_item_gre_opt)), diff --git a/lib/ethdev/rte_flow.h b/lib/ethdev/rte_flow.h index affdc8121b..887401bb86 100644 --- a/lib/ethdev/rte_flow.h +++ b/lib/ethdev/rte_flow.h @@ -704,6 +704,19 @@ enum rte_flow_item_type { * */ RTE_FLOW_ITEM_TYPE_PTYPE, + + /** + * [META] + * + * Matches a random value. + * + * This value is not based on the packet data/headers. + * Application shouldn't assume that this value is kept during the life + * time of the packet. + * + * @see struct rte_flow_item_random. + */ + RTE_FLOW_ITEM_TYPE_RANDOM, }; /** @@ -2047,6 +2060,25 @@ static const struct rte_flow_item_ib_bth rte_flow_item_ib_bth_mask = { }; #endif +/** + * @warning + * @b EXPERIMENTAL: this structure may change without prior notice + * + * RTE_FLOW_ITEM_TYPE_RANDOM + * + * Matches a random value. + */ +struct rte_flow_item_random { + uint32_t value; +}; + +/** Default mask for RTE_FLOW_ITEM_TYPE_RANDOM. */ +#ifndef __cplusplus +static const struct rte_flow_item_random rte_flow_item_random_mask = { + .value = UINT32_MAX, +}; +#endif + /** * Matching pattern item definition. * @@ -3903,7 +3935,8 @@ enum rte_flow_field_id { RTE_FLOW_FIELD_TCP_DATA_OFFSET, /**< TCP data offset. */ RTE_FLOW_FIELD_IPV4_IHL, /**< IPv4 IHL. */ RTE_FLOW_FIELD_IPV4_TOTAL_LEN, /**< IPv4 total length. */ - RTE_FLOW_FIELD_IPV6_PAYLOAD_LEN /**< IPv6 payload length. */ + RTE_FLOW_FIELD_IPV6_PAYLOAD_LEN,/**< IPv6 payload length. */ + RTE_FLOW_FIELD_RANDOM /**< Random value. */ }; /**