From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id 7654E8E64 for ; Thu, 1 Oct 2015 21:55:04 +0200 (CEST) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP; 01 Oct 2015 12:55:03 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,619,1437462000"; d="scan'208";a="817386625" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by fmsmga002.fm.intel.com with ESMTP; 01 Oct 2015 12:55:02 -0700 Received: from sivswdev02.ir.intel.com (sivswdev02.ir.intel.com [10.237.217.46]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id t91Jt2EU015444; Thu, 1 Oct 2015 20:55:02 +0100 Received: from sivswdev02.ir.intel.com (localhost [127.0.0.1]) by sivswdev02.ir.intel.com with ESMTP id t91Jt1qF020797; Thu, 1 Oct 2015 20:55:01 +0100 Received: (from kananye1@localhost) by sivswdev02.ir.intel.com with id t91Jt1bW020792; Thu, 1 Oct 2015 20:55:01 +0100 From: Konstantin Ananyev To: dev@dpdk.org Date: Thu, 1 Oct 2015 20:54:46 +0100 Message-Id: <1443729293-20753-2-git-send-email-konstantin.ananyev@intel.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1443729293-20753-1-git-send-email-konstantin.ananyev@intel.com> References: <1443729293-20753-1-git-send-email-konstantin.ananyev@intel.com> Subject: [dpdk-dev] [PATCHv5 1/8] ethdev: add new API to retrieve RX/TX queue information X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Oct 2015 19:55:05 -0000 From: "Ananyev, Konstantin" Add the ability for the upper layer to query RX/TX queue information. Add into rte_eth_dev_info new fields to represent information about RX/TX descriptors min/max/alig nnumbers per queue for the device. Add new structures: struct rte_eth_rxq_info struct rte_eth_txq_info new functions: rte_eth_rx_queue_info_get rte_eth_tx_queue_info_get into rte_etdev API. Left extra free space in the queue info structures, so extra fields could be added later without ABI breakage. Add new fields: rx_desc_lim tx_desc_lim into rte_eth_dev_info. v2 changes: - Add formal check for the qinfo input parameter. - As suggested rename 'rx_qinfo/tx_qinfo' to 'rxq_info/txq_info' v3 changes: - Updated rte_ether_version.map - Merged with latest changes v4 changes: - rte_ether_version.map: move new functions into DPDK_2.1 sub-space. v5 changes: - adressed previous code-review comments - rte_ether_version.map: move new functions into DPDK_2.2 sub-space. - added new fields into rte_eth_dev_info Signed-off-by: Konstantin Ananyev --- lib/librte_ether/rte_ethdev.c | 68 +++++++++++++++++++++++++++ lib/librte_ether/rte_ethdev.h | 85 +++++++++++++++++++++++++++++++++- lib/librte_ether/rte_ether_version.map | 8 ++++ 3 files changed, 159 insertions(+), 2 deletions(-) diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c index b309309..66bd074 100644 --- a/lib/librte_ether/rte_ethdev.c +++ b/lib/librte_ether/rte_ethdev.c @@ -1447,6 +1447,19 @@ rte_eth_rx_queue_setup(uint8_t port_id, uint16_t rx_queue_id, return -EINVAL; } + if (nb_rx_desc > dev_info.rx_desc_lim.nb_max || + nb_rx_desc < dev_info.rx_desc_lim.nb_min || + nb_rx_desc % dev_info.rx_desc_lim.nb_align != 0) { + + PMD_DEBUG_TRACE("Invalid value for nb_rx_desc(=%hu), " + "should be: <= %hu, = %hu, and a product of %hu\n", + nb_rx_desc, + dev_info.rx_desc_lim.nb_max, + dev_info.rx_desc_lim.nb_min, + dev_info.rx_desc_lim.nb_align); + return -EINVAL; + } + if (rx_conf == NULL) rx_conf = &dev_info.default_rxconf; @@ -1786,11 +1799,18 @@ void rte_eth_dev_info_get(uint8_t port_id, struct rte_eth_dev_info *dev_info) { struct rte_eth_dev *dev; + const struct rte_eth_desc_lim lim = { + .nb_max = UINT16_MAX, + .nb_min = 0, + .nb_align = 1, + }; VALID_PORTID_OR_RET(port_id); dev = &rte_eth_devices[port_id]; memset(dev_info, 0, sizeof(struct rte_eth_dev_info)); + dev_info->rx_desc_lim = lim; + dev_info->tx_desc_lim = lim; FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get); (*dev->dev_ops->dev_infos_get)(dev, dev_info); @@ -3449,6 +3469,54 @@ rte_eth_remove_tx_callback(uint8_t port_id, uint16_t queue_id, } int +rte_eth_rx_queue_info_get(uint8_t port_id, uint16_t queue_id, + struct rte_eth_rxq_info *qinfo) +{ + struct rte_eth_dev *dev; + + VALID_PORTID_OR_ERR_RET(port_id, -ENODEV); + + if (qinfo == NULL) + return -EINVAL; + + dev = &rte_eth_devices[port_id]; + if (queue_id >= dev->data->nb_rx_queues) { + PMD_DEBUG_TRACE("Invalid RX queue_id=%d\n", queue_id); + return -EINVAL; + } + + FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rxq_info_get, -ENOTSUP); + + memset(qinfo, 0, sizeof(*qinfo)); + dev->dev_ops->rxq_info_get(dev, queue_id, qinfo); + return 0; +} + +int +rte_eth_tx_queue_info_get(uint8_t port_id, uint16_t queue_id, + struct rte_eth_txq_info *qinfo) +{ + struct rte_eth_dev *dev; + + VALID_PORTID_OR_ERR_RET(port_id, -ENODEV); + + if (qinfo == NULL) + return -EINVAL; + + dev = &rte_eth_devices[port_id]; + if (queue_id >= dev->data->nb_tx_queues) { + PMD_DEBUG_TRACE("Invalid TX queue_id=%d\n", queue_id); + return -EINVAL; + } + + FUNC_PTR_OR_ERR_RET(*dev->dev_ops->txq_info_get, -ENOTSUP); + + memset(qinfo, 0, sizeof(*qinfo)); + dev->dev_ops->txq_info_get(dev, queue_id, qinfo); + return 0; +} + +int rte_eth_dev_set_mc_addr_list(uint8_t port_id, struct ether_addr *mc_addr_set, uint32_t nb_mc_addr) diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h index fa06554..2cb9bc2 100644 --- a/lib/librte_ether/rte_ethdev.h +++ b/lib/librte_ether/rte_ethdev.h @@ -653,6 +653,15 @@ struct rte_eth_txconf { }; /** + * A structure contains information about HW descriptor ring limitations. + */ +struct rte_eth_desc_lim { + uint16_t nb_max; /**< Max allowed number of descriptors. */ + uint16_t nb_min; /**< Min allowed number of descriptors. */ + uint16_t nb_align; /**< Number of descriptors should be aligned to. */ +}; + +/** * This enum indicates the flow control mode */ enum rte_eth_fc_mode { @@ -945,6 +954,8 @@ struct rte_eth_dev_info { uint16_t vmdq_queue_base; /**< First queue ID for VMDQ pools. */ uint16_t vmdq_queue_num; /**< Queue number for VMDQ pools. */ uint16_t vmdq_pool_base; /**< First ID of VMDQ pools. */ + struct rte_eth_desc_lim rx_desc_lim; /**< RX descriptors limits */ + struct rte_eth_desc_lim tx_desc_lim; /**< TX descriptors limits */ }; /** Maximum name length for extended statistics counters */ @@ -962,6 +973,26 @@ struct rte_eth_xstats { uint64_t value; }; +/** + * Ethernet device RX queue information structure. + * Used to retieve information about configured queue. + */ +struct rte_eth_rxq_info { + struct rte_mempool *mp; /**< mempool used by that queue. */ + struct rte_eth_rxconf conf; /**< queue config parameters. */ + uint8_t scattered_rx; /**< scattered packets RX supported. */ + uint16_t nb_desc; /**< configured number of RXDs. */ +} __rte_cache_aligned; + +/** + * Ethernet device TX queue information structure. + * Used to retieve information about configured queue. + */ +struct rte_eth_txq_info { + struct rte_eth_txconf conf; /**< queue config parameters. */ + uint16_t nb_desc; /**< configured number of TXDs. */ +} __rte_cache_aligned; + struct rte_eth_dev; struct rte_eth_dev_callback; @@ -1073,6 +1104,12 @@ typedef uint32_t (*eth_rx_queue_count_t)(struct rte_eth_dev *dev, typedef int (*eth_rx_descriptor_done_t)(void *rxq, uint16_t offset); /**< @internal Check DD bit of specific RX descriptor */ +typedef void (*eth_rxq_info_get_t)(struct rte_eth_dev *dev, + uint16_t rx_queue_id, struct rte_eth_rxq_info *qinfo); + +typedef void (*eth_txq_info_get_t)(struct rte_eth_dev *dev, + uint16_t tx_queue_id, struct rte_eth_txq_info *qinfo); + typedef int (*mtu_set_t)(struct rte_eth_dev *dev, uint16_t mtu); /**< @internal Set MTU. */ @@ -1465,9 +1502,13 @@ struct eth_dev_ops { rss_hash_update_t rss_hash_update; /** Get current RSS hash configuration. */ rss_hash_conf_get_t rss_hash_conf_get; - eth_filter_ctrl_t filter_ctrl; /**< common filter control*/ + eth_filter_ctrl_t filter_ctrl; + /**< common filter control. */ eth_set_mc_addr_list_t set_mc_addr_list; /**< set list of mcast addrs */ - + eth_rxq_info_get_t rxq_info_get; + /**< retrieve RX queue information. */ + eth_txq_info_get_t txq_info_get; + /**< retrieve TX queue information. */ /** Turn IEEE1588/802.1AS timestamping on. */ eth_timesync_enable_t timesync_enable; /** Turn IEEE1588/802.1AS timestamping off. */ @@ -3821,6 +3862,46 @@ int rte_eth_remove_tx_callback(uint8_t port_id, uint16_t queue_id, struct rte_eth_rxtx_callback *user_cb); /** + * Retrieve information about given port's RX queue. + * + * @param port_id + * The port identifier of the Ethernet device. + * @param queue_id + * The RX queue on the Ethernet device for which information + * will be retrieved. + * @param qinfo + * A pointer to a structure of type *rte_eth_rxq_info_info* to be filled with + * the information of the Ethernet device. + * + * @return + * - 0: Success + * - -ENOTSUP: routine is not supported by the device PMD. + * - -EINVAL: The port_id or the queue_id is out of range. + */ +int rte_eth_rx_queue_info_get(uint8_t port_id, uint16_t queue_id, + struct rte_eth_rxq_info *qinfo); + +/** + * Retrieve information about given port's TX queue. + * + * @param port_id + * The port identifier of the Ethernet device. + * @param queue_id + * The TX queue on the Ethernet device for which information + * will be retrieved. + * @param qinfo + * A pointer to a structure of type *rte_eth_txq_info_info* to be filled with + * the information of the Ethernet device. + * + * @return + * - 0: Success + * - -ENOTSUP: routine is not supported by the device PMD. + * - -EINVAL: The port_id or the queue_id is out of range. + */ +int rte_eth_tx_queue_info_get(uint8_t port_id, uint16_t queue_id, + struct rte_eth_txq_info *qinfo); + +/* * Retrieve number of available registers for access * * @param port_id diff --git a/lib/librte_ether/rte_ether_version.map b/lib/librte_ether/rte_ether_version.map index 8345a6c..1fb4b87 100644 --- a/lib/librte_ether/rte_ether_version.map +++ b/lib/librte_ether/rte_ether_version.map @@ -127,3 +127,11 @@ DPDK_2.1 { rte_eth_timesync_read_tx_timestamp; } DPDK_2.0; + +DPDK_2.2 { + global: + + rte_eth_rx_queue_info_get; + rte_eth_tx_queue_info_get; + +} DPDK_2.1; -- 1.8.3.1