From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id 814255F30 for ; Wed, 17 Oct 2018 14:04:19 +0200 (CEST) Received: from Internal Mail-Server by MTLPINE1 (envelope-from dekelp@mellanox.com) with ESMTPS (AES256-SHA encrypted); 17 Oct 2018 14:09:13 +0200 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 w9HC4DLt004767; Wed, 17 Oct 2018 15:04:14 +0300 From: Dekel Peled To: wenzhuo.lu@intel.com, jingjing.wu@intel.com, bernard.iremonger@intel.com, olivier.matz@6wind.com, adrien.mazarguil@6wind.com, thomas@monjalon.net, ferruh.yigit@intel.com, arybchenko@solarflare.com Cc: shahafs@mellanox.com, dev@dpdk.org, orika@mellanox.com Date: Wed, 17 Oct 2018 15:03:47 +0300 Message-Id: <1539777829-64412-2-git-send-email-dekelp@mellanox.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1539254998-8555-1-git-send-email-dekelp@mellanox.com> References: <1539254998-8555-1-git-send-email-dekelp@mellanox.com> Subject: [dpdk-dev] [PATCH v5 1/3] ethdev: support metadata as flow rule criteria 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: , X-List-Received-Date: Wed, 17 Oct 2018 12:04:20 -0000 As described in [1], a new rte_flow item is added to support metadata to use as flow rule match pattern. The metadata is an opaque item, fully controlled by the application. The use of metadata is relevant for egress rules only. It can be set in the flow rule using the RTE_FLOW_ITEM_META. An additional member 'tx_metadata' is added in union with existing member 'hash' of struct 'rte_mbuf', located to avoid conflicts with existing fields. This additional member is used to carry the metadata item. Application should set the packet metadata in the mbuf dedicated field, and set the PKT_TX_METADATA flag in the mbuf->ol_flags. The NIC will use the packet metadata as match criteria for relevant flow rules. This patch introduces metadata item type for rte_flow RTE_FLOW_ITEM_META, along with corresponding struct rte_flow_item_meta and ol_flag PKT_TX_METADATA. [1] "[RFC,v2] ethdev: support metadata as flow rule criteria" Signed-off-by: Dekel Peled --- doc/guides/prog_guide/rte_flow.rst | 21 ++++++++++++ lib/librte_ethdev/rte_ethdev.c | 1 + lib/librte_ethdev/rte_ethdev.h | 5 +++ lib/librte_ethdev/rte_flow.c | 1 + lib/librte_ethdev/rte_flow.h | 24 ++++++++++++++ lib/librte_mbuf/rte_mbuf.c | 2 ++ lib/librte_mbuf/rte_mbuf.h | 68 +++++++++++++++++++++++++------------- 7 files changed, 99 insertions(+), 23 deletions(-) diff --git a/doc/guides/prog_guide/rte_flow.rst b/doc/guides/prog_guide/rte_flow.rst index 647e938..17470ad 100644 --- a/doc/guides/prog_guide/rte_flow.rst +++ b/doc/guides/prog_guide/rte_flow.rst @@ -1191,6 +1191,27 @@ Normally preceded by any of: - `Item: ICMP6_ND_NS`_ - `Item: ICMP6_ND_OPT`_ +Item: ``META`` +^^^^^^^^^^^^^^ + +Matches an application specific 32 bit metadata item. + +- Default ``mask`` matches the specified metadata value. + +.. _table_rte_flow_item_meta: + +.. table:: META + + +----------+----------+-----------------------+ + | Field | Subfield | Value | + +==========+==========+=======================+ + | ``spec`` | ``data`` | 32 bit metadata value | + +----------+----------------------------------+ + | ``last`` | ``data`` | ignored | + +----------+----------+-----------------------+ + | ``mask`` | ``data`` | ignored | + +----------+----------+-----------------------+ + Actions ~~~~~~~ diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c index 21f1dfb..2a660ce 100644 --- a/lib/librte_ethdev/rte_ethdev.c +++ b/lib/librte_ethdev/rte_ethdev.c @@ -160,6 +160,7 @@ struct rte_eth_xstats_name_off { RTE_TX_OFFLOAD_BIT2STR(UDP_TNL_TSO), RTE_TX_OFFLOAD_BIT2STR(IP_TNL_TSO), RTE_TX_OFFLOAD_BIT2STR(OUTER_UDP_CKSUM), + RTE_TX_OFFLOAD_BIT2STR(MATCH_METADATA), }; #undef RTE_TX_OFFLOAD_BIT2STR diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h index fb40c89..94e9619 100644 --- a/lib/librte_ethdev/rte_ethdev.h +++ b/lib/librte_ethdev/rte_ethdev.h @@ -946,6 +946,11 @@ struct rte_eth_conf { #define DEV_TX_OFFLOAD_IP_TNL_TSO 0x00080000 /** Device supports outer UDP checksum */ #define DEV_TX_OFFLOAD_OUTER_UDP_CKSUM 0x00100000 +/** + * Device supports match on metadata Tx offload.. + * Application must set PKT_TX_METADATA and mbuf metadata field. + */ +#define DEV_TX_OFFLOAD_MATCH_METADATA 0x00200000 #define RTE_ETH_DEV_CAPA_RUNTIME_RX_QUEUE_SETUP 0x00000001 /**< Device supports Rx queue setup after device started*/ diff --git a/lib/librte_ethdev/rte_flow.c b/lib/librte_ethdev/rte_flow.c index 1e5cd73..35be710 100644 --- a/lib/librte_ethdev/rte_flow.c +++ b/lib/librte_ethdev/rte_flow.c @@ -73,6 +73,7 @@ struct rte_flow_desc_data { MK_FLOW_ITEM(ICMP6_ND_OPT_TLA_ETH, 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)), }; /** Generate flow_action[] entry. */ diff --git a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h index 3ae9de3..d103472 100644 --- a/lib/librte_ethdev/rte_flow.h +++ b/lib/librte_ethdev/rte_flow.h @@ -414,6 +414,14 @@ enum rte_flow_item_type { * See struct rte_flow_item_mark. */ RTE_FLOW_ITEM_TYPE_MARK, + + /** + * [META] + * + * Matches a metadata value specified in mbuf metadata field. + * See struct rte_flow_item_meta. + */ + RTE_FLOW_ITEM_TYPE_META, }; /** @@ -1157,6 +1165,22 @@ struct rte_flow_item_icmp6_nd_opt_tla_eth { #endif /** + * RTE_FLOW_ITEM_TYPE_META. + * + * Matches a specified metadata value. + */ +struct rte_flow_item_meta { + uint32_t data; +}; + +/** Default mask for RTE_FLOW_ITEM_TYPE_META. */ +#ifndef __cplusplus +static const struct rte_flow_item_meta rte_flow_item_meta_mask = { + .data = RTE_BE32(UINT32_MAX), +}; +#endif + +/** * @warning * @b EXPERIMENTAL: this structure may change without prior notice * diff --git a/lib/librte_mbuf/rte_mbuf.c b/lib/librte_mbuf/rte_mbuf.c index 5297beb..5baa1ea 100644 --- a/lib/librte_mbuf/rte_mbuf.c +++ b/lib/librte_mbuf/rte_mbuf.c @@ -408,6 +408,7 @@ const char *rte_get_tx_ol_flag_name(uint64_t mask) case PKT_TX_TUNNEL_UDP: return "PKT_TX_TUNNEL_UDP"; case PKT_TX_MACSEC: return "PKT_TX_MACSEC"; case PKT_TX_SEC_OFFLOAD: return "PKT_TX_SEC_OFFLOAD"; + case PKT_TX_METADATA: return "PKT_TX_METADATA"; default: return NULL; } } @@ -449,6 +450,7 @@ const char *rte_get_tx_ol_flag_name(uint64_t mask) { PKT_TX_MACSEC, PKT_TX_MACSEC, NULL }, { PKT_TX_SEC_OFFLOAD, PKT_TX_SEC_OFFLOAD, NULL }, { PKT_TX_OUTER_UDP_CKSUM, PKT_TX_OUTER_UDP_CKSUM, NULL }, + { PKT_TX_METADATA, PKT_TX_METADATA, NULL }, }; const char *name; unsigned int i; diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h index 61f0f1c..3dbc669 100644 --- a/lib/librte_mbuf/rte_mbuf.h +++ b/lib/librte_mbuf/rte_mbuf.h @@ -202,6 +202,11 @@ /* add new TX flags here */ /** + * Indicate that the metadata field in the mbuf is in use. + */ +#define PKT_TX_METADATA (1ULL << 40) + +/** * Outer UDP checksum offload flag. This flag is used for enabling * outer UDP checksum in PMD. To use outer UDP checksum, the user needs to * 1) Enable the following in mbuff, @@ -378,9 +383,10 @@ PKT_TX_QINQ_PKT | \ PKT_TX_TUNNEL_MASK | \ PKT_TX_MACSEC | \ - PKT_TX_SEC_OFFLOAD | \ - PKT_TX_UDP_SEG | \ - PKT_TX_OUTER_UDP_CKSUM) + PKT_TX_SEC_OFFLOAD | \ + PKT_TX_UDP_SEG | \ + PKT_TX_OUTER_UDP_CKSUM | \ + PKT_TX_METADATA) /** * Mbuf having an external buffer attached. shinfo in mbuf must be filled. @@ -550,31 +556,47 @@ struct rte_mbuf { /** VLAN TCI (CPU order), valid if PKT_RX_VLAN is set. */ uint16_t vlan_tci; + RTE_STD_C11 union { - uint32_t rss; /**< RSS hash result if RSS enabled */ - struct { - RTE_STD_C11 - union { - struct { - uint16_t hash; - uint16_t id; + union { + uint32_t rss; /**< RSS hash result if RSS enabled */ + struct { + union { + struct { + uint16_t hash; + uint16_t id; + }; + uint32_t lo; + /**< Second 4 flexible bytes */ }; + uint32_t hi; + /**< First 4 flexible bytes or FD ID, dependent + * on PKT_RX_FDIR_* flag in ol_flags. + */ + } fdir; /**< Filter identifier if FDIR enabled */ + struct { uint32_t lo; - /**< Second 4 flexible bytes */ - }; - uint32_t hi; - /**< First 4 flexible bytes or FD ID, dependent on - PKT_RX_FDIR_* flag in ol_flags. */ - } fdir; /**< Filter identifier if FDIR enabled */ + uint32_t hi; + /**< The event eth Tx adapter uses this field + * to store Tx queue id. + * @see rte_event_eth_tx_adapter_txq_set() + */ + } sched; /**< Hierarchical scheduler */ + /**< User defined tags. See rte_distributor_process() */ + uint32_t usr; + } hash; /**< hash information */ struct { - uint32_t lo; - uint32_t hi; - /**< The event eth Tx adapter uses this field to store - * Tx queue id. @see rte_event_eth_tx_adapter_txq_set() + /** + * Application specific metadata value + * for egress flow rule match. + * Valid if PKT_TX_METADATA is set. + * Located here to allow conjunct use + * with hash.sched.hi. */ - } sched; /**< Hierarchical scheduler */ - uint32_t usr; /**< User defined tags. See rte_distributor_process() */ - } hash; /**< hash information */ + uint32_t tx_metadata; + uint32_t reserved; + }; + }; /** Outer VLAN TCI (CPU order), valid if PKT_RX_QINQ is set. */ uint16_t vlan_tci_outer; -- 1.8.3.1