From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 52FD54CC0 for ; Mon, 2 Apr 2018 04:59:33 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 01 Apr 2018 19:59:32 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,393,1517904000"; d="scan'208";a="30272651" Received: from dpdk51.sh.intel.com ([10.67.110.184]) by orsmga008.jf.intel.com with ESMTP; 01 Apr 2018 19:59:31 -0700 From: Qi Zhang To: thomas@monjalon.net, konstantin.ananyev@intel.com Cc: dev@dpdk.org, beilei.xing@intel.com, jingjing.wu@intel.com, wenzhuo.lu@intel.com, Qi Zhang Date: Mon, 2 Apr 2018 10:59:33 +0800 Message-Id: <20180402025935.33312-2-qi.z.zhang@intel.com> X-Mailer: git-send-email 2.13.6 In-Reply-To: <20180402025935.33312-1-qi.z.zhang@intel.com> References: <20180212045314.171616-1-qi.z.zhang@intel.com> <20180402025935.33312-1-qi.z.zhang@intel.com> Subject: [dpdk-dev] [PATCH v5 1/3] ether: support runtime queue setup 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: Mon, 02 Apr 2018 02:59:33 -0000 The patch let etherdev driver expose the capability flag through rte_eth_dev_info_get when it support runtime queue configuraiton, then base on the flag rte_eth_[rx|tx]_queue_setup could decide continue to setup the queue or just return fail when device already started. Signed-off-by: Qi Zhang --- doc/guides/nics/features.rst | 8 ++++++++ lib/librte_ether/rte_ethdev.c | 30 ++++++++++++++++++------------ lib/librte_ether/rte_ethdev.h | 7 +++++++ 3 files changed, 33 insertions(+), 12 deletions(-) diff --git a/doc/guides/nics/features.rst b/doc/guides/nics/features.rst index 1b4fb979f..6983faa4e 100644 --- a/doc/guides/nics/features.rst +++ b/doc/guides/nics/features.rst @@ -892,7 +892,15 @@ Documentation describes performance values. See ``dpdk.org/doc/perf/*``. +.. _nic_features_queue_runtime_setup_capabilities: +Queue runtime setup capabilities +--------------------------------- + +Supports queue setup / release after device started. + +* **[provides] rte_eth_dev_info**: ``runtime_queue_config_capa:DEV_RUNTIME_RX_QUEUE_SETUP,DEV_RUNTIME_TX_QUEUE_SETUP``. +* **[related] API**: ``rte_eth_dev_info_get()``. .. _nic_features_other: diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c index 0590f0c10..343b1a6c0 100644 --- a/lib/librte_ether/rte_ethdev.c +++ b/lib/librte_ether/rte_ethdev.c @@ -1425,12 +1425,6 @@ rte_eth_rx_queue_setup(uint16_t port_id, uint16_t rx_queue_id, return -EINVAL; } - if (dev->data->dev_started) { - RTE_PMD_DEBUG_TRACE( - "port %d must be stopped to allow configuration\n", port_id); - return -EBUSY; - } - RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP); RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_queue_setup, -ENOTSUP); @@ -1474,6 +1468,15 @@ rte_eth_rx_queue_setup(uint16_t port_id, uint16_t rx_queue_id, return -EINVAL; } + if (dev->data->dev_started && + !(dev_info.runtime_queue_setup_capa & + DEV_RUNTIME_RX_QUEUE_SETUP)) + return -EBUSY; + + if (dev->data->rx_queue_state[rx_queue_id] != + RTE_ETH_QUEUE_STATE_STOPPED) + return -EBUSY; + rxq = dev->data->rx_queues; if (rxq[rx_queue_id]) { RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_queue_release, @@ -1573,12 +1576,6 @@ rte_eth_tx_queue_setup(uint16_t port_id, uint16_t tx_queue_id, return -EINVAL; } - if (dev->data->dev_started) { - RTE_PMD_DEBUG_TRACE( - "port %d must be stopped to allow configuration\n", port_id); - return -EBUSY; - } - RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP); RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->tx_queue_setup, -ENOTSUP); @@ -1596,6 +1593,15 @@ rte_eth_tx_queue_setup(uint16_t port_id, uint16_t tx_queue_id, return -EINVAL; } + if (dev->data->dev_started && + !(dev_info.runtime_queue_setup_capa & + DEV_RUNTIME_TX_QUEUE_SETUP)) + return -EBUSY; + + if (dev->data->rx_queue_state[tx_queue_id] != + RTE_ETH_QUEUE_STATE_STOPPED) + return -EBUSY; + txq = dev->data->tx_queues; if (txq[tx_queue_id]) { RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->tx_queue_release, diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h index 036153306..4e2088458 100644 --- a/lib/librte_ether/rte_ethdev.h +++ b/lib/librte_ether/rte_ethdev.h @@ -981,6 +981,11 @@ struct rte_eth_conf { */ #define DEV_TX_OFFLOAD_SECURITY 0x00020000 +#define DEV_RUNTIME_RX_QUEUE_SETUP 0x00000001 +/**< Deferred setup rx queue */ +#define DEV_RUNTIME_TX_QUEUE_SETUP 0x00000002 +/**< Deferred setup tx queue */ + /* * If new Tx offload capabilities are defined, they also must be * mentioned in rte_tx_offload_names in rte_ethdev.c file. @@ -1029,6 +1034,8 @@ struct rte_eth_dev_info { /** Configured number of rx/tx queues */ uint16_t nb_rx_queues; /**< Number of RX queues. */ uint16_t nb_tx_queues; /**< Number of TX queues. */ + uint64_t runtime_queue_setup_capa; + /**< queues can be setup after dev_start (DEV_DEFERRED_). */ }; /** -- 2.13.6