From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 8246AA3160 for ; Thu, 10 Oct 2019 12:51:45 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 1A0D01E994; Thu, 10 Oct 2019 12:51:44 +0200 (CEST) Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) by dpdk.org (Postfix) with ESMTP id 80AD61E986 for ; Thu, 10 Oct 2019 12:51:38 +0200 (CEST) Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id x9AAoWMt007654; Thu, 10 Oct 2019 03:51:37 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=pfpt0818; bh=k8F490i308AhPfPdMBxuc9MnjMcjvi+TkWjF+LJ7X1I=; b=hobPh8x2Y4ijvL08GQxIfoW+O/AgA3UNiUvnNk1eKFw9ggDbbv8W3ohIgAKKN0nR3AQP PT+p1j3jIRtX9Ek5JQ8BHbaU3KrRKE8VAovPA/+qZ2frLWWl/KYDMDXGkZnnwxc9iweN ryMRyq+l5BKIduTAoVoTbAdOZ2XR4nFRzZNOPOgs1Dp1oaAhwWoFwLtKw956jQrpwvI5 ENndThqDIvT2et1mCJe27bPXzFHwo9FylRjP8bH5elyghbfCoYooQ5t3sC24llm7cKJ4 HnyEp7pigDv6xCspKnnspK0wz6qiX6QzcQ1S5W6+tP1tOehx3MpaUUDOzjxc4b4VNjYi Og== Received: from sc-exch01.marvell.com ([199.233.58.181]) by mx0a-0016f401.pphosted.com with ESMTP id 2vh5rqphgf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Thu, 10 Oct 2019 03:51:37 -0700 Received: from SC-EXCH03.marvell.com (10.93.176.83) by SC-EXCH01.marvell.com (10.93.176.81) with Microsoft SMTP Server (TLS) id 15.0.1367.3; Thu, 10 Oct 2019 03:51:35 -0700 Received: from maili.marvell.com (10.93.176.43) by SC-EXCH03.marvell.com (10.93.176.83) with Microsoft SMTP Server id 15.0.1367.3 via Frontend Transport; Thu, 10 Oct 2019 03:51:36 -0700 Received: from BG-LT7430.marvell.com (bg-lt7430.marvell.com [10.28.10.255]) by maili.marvell.com (Postfix) with ESMTP id AB4093F703F; Thu, 10 Oct 2019 03:51:33 -0700 (PDT) From: To: , , John McNamara , Marko Kovacevic , Thomas Monjalon , Ferruh Yigit CC: , Pavan Nikhilesh Date: Thu, 10 Oct 2019 16:21:23 +0530 Message-ID: <20191010105130.3382-2-pbhagavatula@marvell.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191010105130.3382-1-pbhagavatula@marvell.com> References: <20191009153357.926-1-pbhagavatula@marvell.com> <20191010105130.3382-1-pbhagavatula@marvell.com> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,1.0.8 definitions=2019-10-10_04:2019-10-10,2019-10-10 signatures=0 Subject: [dpdk-dev] [PATCH v11 1/7] ethdev: add set ptype function 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" From: Pavan Nikhilesh Add `rte_eth_dev_set_supported_ptypes` function that will allow the application to inform the PMD the packet types it is interested in. Based on the ptypes set PMDs can optimize their Rx path. -If application doesn’t want any ptype information it can call `rte_eth_dev_set_supported_ptypes(ethdev_id, RTE_PTYPE_UNKNOWN, NULL, 0)` and PMD may skip packet type processing and set rte_mbuf::packet_type to RTE_PTYPE_UNKNOWN. -If application doesn’t call `rte_eth_dev_set_supported_ptypes` PMD can return `rte_mbuf::packet_type` with `rte_eth_dev_get_supported_ptypes`. -If application is interested only in L2/L3 layer, it can inform the PMD to update `rte_mbuf::packet_type` with L2/L3 ptype by calling `rte_eth_dev_set_supported_ptypes(ethdev_id, RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK, NULL, 0)`. Suggested-by: Konstantin Ananyev Signed-off-by: Pavan Nikhilesh Reviewed-by: Andrew Rybchenko --- doc/guides/nics/features.rst | 8 ++- doc/guides/rel_notes/release_19_11.rst | 8 +++ lib/librte_ethdev/rte_ethdev.c | 86 ++++++++++++++++++++++++ lib/librte_ethdev/rte_ethdev.h | 37 ++++++++++ lib/librte_ethdev/rte_ethdev_core.h | 19 ++++++ lib/librte_ethdev/rte_ethdev_version.map | 3 + 6 files changed, 159 insertions(+), 2 deletions(-) diff --git a/doc/guides/nics/features.rst b/doc/guides/nics/features.rst index c4e128d2f..1756fa73a 100644 --- a/doc/guides/nics/features.rst +++ b/doc/guides/nics/features.rst @@ -583,9 +583,13 @@ Packet type parsing ------------------- Supports packet type parsing and returns a list of supported types. +Allows application to set ptypes it is interested in. -* **[implements] eth_dev_ops**: ``dev_supported_ptypes_get``. -* **[related] API**: ``rte_eth_dev_get_supported_ptypes()``. +* **[implements] eth_dev_ops**: ``dev_supported_ptypes_get``, + ``dev_supported_ptypes_set``. +* **[related] API**: ``rte_eth_dev_get_supported_ptypes()``, + ``rte_eth_dev_set_supported_ptypes()``. +* **[provides] mbuf**: ``mbuf.packet_type``. .. _nic_features_timesync: diff --git a/doc/guides/rel_notes/release_19_11.rst b/doc/guides/rel_notes/release_19_11.rst index 02fc8fbd3..39b191117 100644 --- a/doc/guides/rel_notes/release_19_11.rst +++ b/doc/guides/rel_notes/release_19_11.rst @@ -85,6 +85,14 @@ New Features Added stateful decompression support in the Intel QuickAssist Technology PMD. Please note that stateful compression is not supported. +* **Added ethdev API to set supported packet types** + + * Added new API ``rte_eth_dev_set_supported_ptypes`` that allows an + application to inform PMD about packet types classification the application + is interested in + * This scheme will allow PMDs to avoid lookup to internal ptype table on Rx + and thereby improve Rx performance if application wishes do so. + Removed Items ------------- diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c index 30b0c7803..30b873389 100644 --- a/lib/librte_ethdev/rte_ethdev.c +++ b/lib/librte_ethdev/rte_ethdev.c @@ -2619,6 +2619,92 @@ rte_eth_dev_get_supported_ptypes(uint16_t port_id, uint32_t ptype_mask, return j; } +int +rte_eth_dev_set_supported_ptypes(uint16_t port_id, uint32_t ptype_mask, + uint32_t *set_ptypes, unsigned int num) +{ + const uint32_t valid_ptype_masks[] = { + RTE_PTYPE_L2_MASK, + RTE_PTYPE_L3_MASK, + RTE_PTYPE_L4_MASK, + RTE_PTYPE_TUNNEL_MASK, + RTE_PTYPE_INNER_L2_MASK, + RTE_PTYPE_INNER_L3_MASK, + RTE_PTYPE_INNER_L4_MASK, + }; + const uint32_t *all_ptypes; + struct rte_eth_dev *dev; + uint32_t unused_mask; + unsigned int i, j; + int ret; + + RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV); + dev = &rte_eth_devices[port_id]; + + if (num > 0 && set_ptypes == NULL) + return -EINVAL; + + if (*dev->dev_ops->dev_supported_ptypes_get == NULL || + *dev->dev_ops->dev_supported_ptypes_set == NULL) { + ret = 0; + goto ptype_unknown; + } + + if (ptype_mask == 0) { + ret = (*dev->dev_ops->dev_supported_ptypes_set)(dev, + ptype_mask); + goto ptype_unknown; + } + + unused_mask = ptype_mask; + for (i = 0; i < RTE_DIM(valid_ptype_masks); i++) { + uint32_t mask = ptype_mask & valid_ptype_masks[i]; + if (mask && mask != valid_ptype_masks[i]) { + ret = -EINVAL; + goto ptype_unknown; + } + unused_mask &= ~valid_ptype_masks[i]; + } + + if (unused_mask) { + ret = -EINVAL; + goto ptype_unknown; + } + + all_ptypes = (*dev->dev_ops->dev_supported_ptypes_get)(dev); + if (all_ptypes == NULL) { + ret = 0; + goto ptype_unknown; + } + + /* + * Accodommodate as many set_ptypes as possible. If the supplied + * set_ptypes array is insufficient fill it partially. + */ + for (i = 0, j = 0; set_ptypes != NULL && + (all_ptypes[i] != RTE_PTYPE_UNKNOWN); ++i) { + if (ptype_mask & all_ptypes[i]) { + if (j < num - 1) { + set_ptypes[j] = all_ptypes[i]; + j++; + continue; + } + break; + } + } + + if (set_ptypes != NULL && j < num) + set_ptypes[j] = RTE_PTYPE_UNKNOWN; + + return (*dev->dev_ops->dev_supported_ptypes_set)(dev, ptype_mask); + +ptype_unknown: + if (num > 0) + set_ptypes[0] = RTE_PTYPE_UNKNOWN; + + return ret; +} + void rte_eth_macaddr_get(uint16_t port_id, struct rte_ether_addr *mac_addr) { diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h index 475dbdae1..8247b37f6 100644 --- a/lib/librte_ethdev/rte_ethdev.h +++ b/lib/librte_ethdev/rte_ethdev.h @@ -2435,6 +2435,43 @@ int rte_eth_dev_fw_version_get(uint16_t port_id, */ int rte_eth_dev_get_supported_ptypes(uint16_t port_id, uint32_t ptype_mask, uint32_t *ptypes, int num); +/** + * @warning + * @b EXPERIMENTAL: this API may change without prior notice. + * + * Inform Ethernet device of the packet types classification the recipient is + * interested in. + * + * Application can use this function to set only specific ptypes that it's + * interested. This information can be used by the PMD to optimize Rx path. + * + * The function accepts an array `set_ptypes` allocated by the caller to + * store the packet types set by the driver, the last element of the array + * is set to RTE_PTYPE_UNKNOWN. The size of the `set_ptype` array should be + * `rte_eth_dev_get_supported_ptypes() + 1` else it might only be filled + * partially. + * + * @param port_id + * The port identifier of the Ethernet device. + * @param ptype_mask + * The ptype family that application is interested in should be bitwise OR of + * RTE_PTYPE_*_MASK or 0. + * @param set_ptypes + * An array pointer to store set packet types, allocated by caller. The + * function marks the end of array with RTE_PTYPE_UNKNOWN. + * @param num + * Size of the array pointed by param ptypes. + * Should be rte_eth_dev_get_supported_ptypes() + 1 to accommodate the + * set ptypes. + * @return + * - (0) if Success. + * - (-ENODEV) if *port_id* invalid. + * - (-EINVAL) if *ptype_mask* is invalid (or) set_ptypes is NULL and + * num > 0. + */ +__rte_experimental +int rte_eth_dev_set_supported_ptypes(uint16_t port_id, uint32_t ptype_mask, + uint32_t *set_ptypes, unsigned int num); /** * Retrieve the MTU of an Ethernet device. diff --git a/lib/librte_ethdev/rte_ethdev_core.h b/lib/librte_ethdev/rte_ethdev_core.h index 2394b32c8..37bb57247 100644 --- a/lib/librte_ethdev/rte_ethdev_core.h +++ b/lib/librte_ethdev/rte_ethdev_core.h @@ -110,6 +110,23 @@ typedef int (*eth_dev_infos_get_t)(struct rte_eth_dev *dev, typedef const uint32_t *(*eth_dev_supported_ptypes_get_t)(struct rte_eth_dev *dev); /**< @internal Get supported ptypes of an Ethernet device. */ +/** + * @internal + * Inform an Ethernet device about packet types classifications the recipient + * is interested in. + * + * @param dev + * The Ethernet device identifier. + * @param ptype_mask + * The ptype family that application is interested in should be bitwise OR of + * RTE_PTYPE_*_MASK or 0. + * @return + * - (0) if Success. + * - (-EINVAL) if *ptype_mask* is invalid. + */ +typedef int (*eth_dev_supported_ptypes_set_t)(struct rte_eth_dev *dev, + uint32_t ptype_mask); + typedef int (*eth_queue_start_t)(struct rte_eth_dev *dev, uint16_t queue_id); /**< @internal Start rx and tx of a queue of an Ethernet device. */ @@ -421,6 +438,8 @@ struct eth_dev_ops { eth_fw_version_get_t fw_version_get; /**< Get firmware version. */ eth_dev_supported_ptypes_get_t dev_supported_ptypes_get; /**< Get packet types supported and identified by device. */ + eth_dev_supported_ptypes_set_t dev_supported_ptypes_set; + /**< Inform Ethernet device about packet types the recipient is interested in. */ vlan_filter_set_t vlan_filter_set; /**< Filter VLAN Setup. */ vlan_tpid_set_t vlan_tpid_set; /**< Outer/Inner VLAN TPID Setup. */ diff --git a/lib/librte_ethdev/rte_ethdev_version.map b/lib/librte_ethdev/rte_ethdev_version.map index 6df42a47b..e14745b9c 100644 --- a/lib/librte_ethdev/rte_ethdev_version.map +++ b/lib/librte_ethdev/rte_ethdev_version.map @@ -283,4 +283,7 @@ EXPERIMENTAL { # added in 19.08 rte_eth_read_clock; + + # added in 19.11 + rte_eth_dev_set_supported_ptypes; }; -- 2.17.1