From patchwork Thu Feb 19 13:48:14 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhou, Danny" X-Patchwork-Id: 3492 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id 77FC2B645; Thu, 19 Feb 2015 14:48:32 +0100 (CET) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id 6AA4FB645 for ; Thu, 19 Feb 2015 14:48:30 +0100 (CET) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga101.jf.intel.com with ESMTP; 19 Feb 2015 05:48:29 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.09,608,1418112000"; d="scan'208";a="680345234" Received: from shvmail01.sh.intel.com ([10.239.29.42]) by fmsmga002.fm.intel.com with ESMTP; 19 Feb 2015 05:48:27 -0800 Received: from shecgisg004.sh.intel.com (shecgisg004.sh.intel.com [10.239.29.89]) by shvmail01.sh.intel.com with ESMTP id t1JDmQ4L019254; Thu, 19 Feb 2015 21:48:26 +0800 Received: from shecgisg004.sh.intel.com (localhost [127.0.0.1]) by shecgisg004.sh.intel.com (8.13.6/8.13.6/SuSE Linux 0.8) with ESMTP id t1JDmMpx029879; Thu, 19 Feb 2015 21:48:24 +0800 Received: (from dyzhou@localhost) by shecgisg004.sh.intel.com (8.13.6/8.13.6/Submit) id t1JDmMha029875; Thu, 19 Feb 2015 21:48:22 +0800 From: Zhou Danny To: dev@dpdk.org Date: Thu, 19 Feb 2015 21:48:14 +0800 Message-Id: <1424353698-29837-2-git-send-email-danny.zhou@intel.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1424353698-29837-1-git-send-email-danny.zhou@intel.com> References: <1424353698-29837-1-git-send-email-danny.zhou@intel.com> Subject: [dpdk-dev] [PATCH v4 1/5] ethdev: add rx interrupt enable/disable functions 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" v4 changes - Export interrupt enable/disable functions for shared libraries - Put new functions at the end of eth_dev_ops to avoid breaking ABI v3 changes - Add return value for interrupt enable/disable functions Add two dev_ops functions to enable and disable rx queue interrupts Signed-off-by: Danny Zhou Tested-by: Yong Liu --- lib/librte_ether/rte_ethdev.c | 43 +++++++++++++++++++++++++ lib/librte_ether/rte_ethdev.h | 59 ++++++++++++++++++++++++++++++++++ lib/librte_ether/rte_ether_version.map | 2 ++ 3 files changed, 104 insertions(+) diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c index ea3a1fb..d27469a 100644 --- a/lib/librte_ether/rte_ethdev.c +++ b/lib/librte_ether/rte_ethdev.c @@ -2825,6 +2825,49 @@ _rte_eth_dev_callback_process(struct rte_eth_dev *dev, } rte_spinlock_unlock(&rte_eth_dev_cb_lock); } + +int +rte_eth_dev_rx_queue_intr_enable(uint8_t port_id, + uint16_t queue_id) +{ + struct rte_eth_dev *dev; + + if (port_id >= nb_ports) { + PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id); + return (-ENODEV); + } + + dev = &rte_eth_devices[port_id]; + if (dev == NULL) { + PMD_DEBUG_TRACE("Invalid port device\n"); + return (-ENODEV); + } + + FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_queue_intr_enable, -ENOTSUP); + return (*dev->dev_ops->rx_queue_intr_enable)(dev, queue_id); +} + +int +rte_eth_dev_rx_queue_intr_disable(uint8_t port_id, + uint16_t queue_id) +{ + struct rte_eth_dev *dev; + + if (port_id >= nb_ports) { + PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id); + return (-ENODEV); + } + + dev = &rte_eth_devices[port_id]; + if (dev == NULL) { + PMD_DEBUG_TRACE("Invalid port device\n"); + return (-ENODEV); + } + + FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_queue_intr_disable, -ENOTSUP); + return (*dev->dev_ops->rx_queue_intr_disable)(dev, queue_id); +} + #ifdef RTE_NIC_BYPASS int rte_eth_dev_bypass_init(uint8_t port_id) { diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h index 84160c3..43035c2 100644 --- a/lib/librte_ether/rte_ethdev.h +++ b/lib/librte_ether/rte_ethdev.h @@ -848,6 +848,8 @@ struct rte_eth_fdir { struct rte_intr_conf { /** enable/disable lsc interrupt. 0 (default) - disable, 1 enable */ uint16_t lsc; + /** enable/disable rxq interrupt. 0 (default) - disable, 1 enable */ + uint16_t rxq; }; /** @@ -1109,6 +1111,14 @@ typedef int (*eth_tx_queue_setup_t)(struct rte_eth_dev *dev, const struct rte_eth_txconf *tx_conf); /**< @internal Setup a transmit queue of an Ethernet device. */ +typedef int (*eth_rx_enable_intr_t)(struct rte_eth_dev *dev, + uint16_t rx_queue_id); +/**< @internal Enable interrupt of a receive queue of an Ethernet device. */ + +typedef int (*eth_rx_disable_intr_t)(struct rte_eth_dev *dev, + uint16_t rx_queue_id); +/**< @internal Disable interrupt of a receive queue of an Ethernet device. */ + typedef void (*eth_queue_release_t)(void *queue); /**< @internal Release memory resources allocated by given RX/TX queue. */ @@ -1520,6 +1530,10 @@ struct eth_dev_ops { eth_remove_flex_filter_t remove_flex_filter; /**< remove flex filter. */ eth_get_flex_filter_t get_flex_filter; /**< get flex filter. */ eth_filter_ctrl_t filter_ctrl; /**< common filter control*/ + + /** Enable/disable Rx queue interrupt. */ + eth_rx_enable_intr_t rx_queue_intr_enable; /**< Enable Rx queue interrupt. */ + eth_rx_disable_intr_t rx_queue_intr_disable; /**< Disable Rx queue interrupt.*/ }; /** @@ -2811,6 +2825,51 @@ void _rte_eth_dev_callback_process(struct rte_eth_dev *dev, enum rte_eth_event_type event); /** + * When there is no rx packet coming in Rx Queue for a long time, we can + * sleep lcore related to RX Queue for power saving, and enable rx interrupt + * to be triggered when rx packect arrives. + * + * The rte_eth_dev_rx_queue_intr_enable() function enables rx queue + * interrupt on specific rx queue of a port. + * + * @param port_id + * The port identifier of the Ethernet device. + * @param queue_id + * The index of the receive queue from which to retrieve input packets. + * The value must be in the range [0, nb_rx_queue - 1] previously supplied + * to rte_eth_dev_configure(). + * @return + * - (0) if successful. + * - (-ENOTSUP) if underlying hardware OR driver doesn't support + * that operation. + * - (-ENODEV) if *port_id* invalid. + */ +int rte_eth_dev_rx_queue_intr_enable(uint8_t port_id, + uint16_t queue_id); + +/** + * When lcore wakes up from rx interrupt indicating packet coming, disable rx + * interrupt and returns to polling mode. + * + * The rte_eth_dev_rx_queue_intr_disable() function disables rx queue + * interrupt on specific rx queue of a port. + * + * @param port_id + * The port identifier of the Ethernet device. + * @param queue_id + * The index of the receive queue from which to retrieve input packets. + * The value must be in the range [0, nb_rx_queue - 1] previously supplied + * to rte_eth_dev_configure(). + * @return + * - (0) if successful. + * - (-ENOTSUP) if underlying hardware OR driver doesn't support + * that operation. + * - (-ENODEV) if *port_id* invalid. + */ +int rte_eth_dev_rx_queue_intr_disable(uint8_t port_id, + uint16_t queue_id); + +/** * Turn on the LED on the Ethernet device. * This function turns on the LED on the Ethernet device. * diff --git a/lib/librte_ether/rte_ether_version.map b/lib/librte_ether/rte_ether_version.map index 7316530..1e7af6e 100644 --- a/lib/librte_ether/rte_ether_version.map +++ b/lib/librte_ether/rte_ether_version.map @@ -57,6 +57,8 @@ DPDK_2.0 { rte_eth_dev_rss_hash_update; rte_eth_dev_rss_reta_query; rte_eth_dev_rss_reta_update; + rte_eth_dev_rx_queue_intr_disable; + rte_eth_dev_rx_queue_intr_enable; rte_eth_dev_rx_queue_start; rte_eth_dev_rx_queue_stop; rte_eth_dev_set_link_down;