From patchwork Wed Sep 16 11:21:05 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "De Lara Guarch, Pablo" X-Patchwork-Id: 7041 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 A4A743784; Wed, 16 Sep 2015 13:21:14 +0200 (CEST) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id 3980E3239 for ; Wed, 16 Sep 2015 13:21:12 +0200 (CEST) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP; 16 Sep 2015 04:21:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,538,1437462000"; d="scan'208";a="770162455" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by orsmga001.jf.intel.com with ESMTP; 16 Sep 2015 04:21:08 -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 t8GBL5Ke015278; Wed, 16 Sep 2015 12:21:06 +0100 Received: from sivswdev02.ir.intel.com (localhost [127.0.0.1]) by sivswdev02.ir.intel.com with ESMTP id t8GBL5Hf020193; Wed, 16 Sep 2015 12:21:05 +0100 Received: (from pdelarax@localhost) by sivswdev02.ir.intel.com with id t8GBL5Di020189; Wed, 16 Sep 2015 12:21:05 +0100 From: Pablo de Lara To: dev@dpdk.org Date: Wed, 16 Sep 2015 12:21:05 +0100 Message-Id: <1442402465-20158-1-git-send-email-pablo.de.lara.guarch@intel.com> X-Mailer: git-send-email 1.7.4.1 Subject: [dpdk-dev] [PATCH] ethdev: add new RX/TX queue state arrays in rte_eth_dev_data 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" Following the same approach taken with dev_started field in rte_eth_dev_data structure, this patch adds two new fields in it, rx_queue_state and tx_queue_state arrays, which track which queues have been started and which not. This is important to avoid trying to start/stop twice a queue, which will result in undefined behaviour (which may cause RX/TX disruption). Mind that only the PMDs which have queue_start/stop functions have been changed to update this field, as the functions will check the queue state before switching it. Signed-off-by: Pablo de Lara --- drivers/net/cxgbe/cxgbe_ethdev.c | 29 +++++++++++++++++++++++++---- drivers/net/enic/enic_ethdev.c | 6 ++++++ drivers/net/fm10k/fm10k_ethdev.c | 4 ++++ drivers/net/i40e/i40e_ethdev_vf.c | 6 ++++++ drivers/net/i40e/i40e_rxtx.c | 7 ++++++- drivers/net/ixgbe/ixgbe_rxtx.c | 4 ++++ lib/librte_ether/rte_ethdev.c | 28 ++++++++++++++++++++++++++++ lib/librte_ether/rte_ethdev.h | 4 ++++ 8 files changed, 83 insertions(+), 5 deletions(-) diff --git a/drivers/net/cxgbe/cxgbe_ethdev.c b/drivers/net/cxgbe/cxgbe_ethdev.c index 478051a..6ee4973 100644 --- a/drivers/net/cxgbe/cxgbe_ethdev.c +++ b/drivers/net/cxgbe/cxgbe_ethdev.c @@ -368,23 +368,33 @@ static int cxgbe_dev_configure(struct rte_eth_dev *eth_dev) static int cxgbe_dev_tx_queue_start(struct rte_eth_dev *eth_dev, uint16_t tx_queue_id) { + int ret; struct sge_eth_txq *txq = (struct sge_eth_txq *) (eth_dev->data->tx_queues[tx_queue_id]); dev_debug(NULL, "%s: tx_queue_id = %d\n", __func__, tx_queue_id); - return t4_sge_eth_txq_start(txq); + ret = t4_sge_eth_txq_start(txq); + if (ret == 0) + eth_dev->data->tx_queue_state[tx_queue_id] = 1; + + return ret; } static int cxgbe_dev_tx_queue_stop(struct rte_eth_dev *eth_dev, uint16_t tx_queue_id) { + int ret; struct sge_eth_txq *txq = (struct sge_eth_txq *) (eth_dev->data->tx_queues[tx_queue_id]); dev_debug(NULL, "%s: tx_queue_id = %d\n", __func__, tx_queue_id); - return t4_sge_eth_txq_stop(txq); + ret = t4_sge_eth_txq_stop(txq); + if (ret == 0) + eth_dev->data->tx_queue_state[tx_queue_id] = 0; + + return ret; } static int cxgbe_dev_tx_queue_setup(struct rte_eth_dev *eth_dev, @@ -460,6 +470,7 @@ static void cxgbe_dev_tx_queue_release(void *q) static int cxgbe_dev_rx_queue_start(struct rte_eth_dev *eth_dev, uint16_t rx_queue_id) { + int ret; struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private); struct adapter *adap = pi->adapter; struct sge_rspq *q; @@ -468,12 +479,18 @@ static int cxgbe_dev_rx_queue_start(struct rte_eth_dev *eth_dev, __func__, pi->port_id, rx_queue_id); q = eth_dev->data->rx_queues[rx_queue_id]; - return t4_sge_eth_rxq_start(adap, q); + + ret = t4_sge_eth_rxq_start(adap, q); + if (ret == 0) + eth_dev->data->rx_queue_state[rx_queue_id] = 1; + + return ret; } static int cxgbe_dev_rx_queue_stop(struct rte_eth_dev *eth_dev, uint16_t rx_queue_id) { + int ret; struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private); struct adapter *adap = pi->adapter; struct sge_rspq *q; @@ -482,7 +499,11 @@ static int cxgbe_dev_rx_queue_stop(struct rte_eth_dev *eth_dev, __func__, pi->port_id, rx_queue_id); q = eth_dev->data->rx_queues[rx_queue_id]; - return t4_sge_eth_rxq_stop(adap, q); + ret = t4_sge_eth_rxq_stop(adap, q); + if (ret == 0) + eth_dev->data->rx_queue_state[rx_queue_id] = 0; + + return ret; } static int cxgbe_dev_rx_queue_setup(struct rte_eth_dev *eth_dev, diff --git a/drivers/net/enic/enic_ethdev.c b/drivers/net/enic/enic_ethdev.c index 8280cea..d646a00 100644 --- a/drivers/net/enic/enic_ethdev.c +++ b/drivers/net/enic/enic_ethdev.c @@ -194,6 +194,7 @@ static int enicpmd_dev_tx_queue_start(struct rte_eth_dev *eth_dev, ENICPMD_FUNC_TRACE(); enic_start_wq(enic, queue_idx); + eth_dev->data->tx_queue_state[queue_idx] = 1; return 0; } @@ -209,6 +210,8 @@ static int enicpmd_dev_tx_queue_stop(struct rte_eth_dev *eth_dev, ret = enic_stop_wq(enic, queue_idx); if (ret) dev_err(enic, "error in stopping wq %d\n", queue_idx); + else + eth_dev->data->tx_queue_state[queue_idx] = 0; return ret; } @@ -221,6 +224,7 @@ static int enicpmd_dev_rx_queue_start(struct rte_eth_dev *eth_dev, ENICPMD_FUNC_TRACE(); enic_start_rq(enic, queue_idx); + eth_dev->data->rx_queue_state[queue_idx] = 1; return 0; } @@ -236,6 +240,8 @@ static int enicpmd_dev_rx_queue_stop(struct rte_eth_dev *eth_dev, ret = enic_stop_rq(enic, queue_idx); if (ret) dev_err(enic, "error in stopping rq %d\n", queue_idx); + else + eth_dev->data->rx_queue_state[queue_idx] = 0; return ret; } diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c index a69c990..1a38223 100644 --- a/drivers/net/fm10k/fm10k_ethdev.c +++ b/drivers/net/fm10k/fm10k_ethdev.c @@ -524,6 +524,7 @@ fm10k_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id) */ FM10K_WRITE_REG(hw, FM10K_RDH(rx_queue_id), 0); FM10K_WRITE_REG(hw, FM10K_RDT(rx_queue_id), rxq->nb_desc - 1); + dev->data->rx_queue_state[rx_queue_id] = 1; } return err; @@ -542,6 +543,7 @@ fm10k_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id) /* Free mbuf and clean HW ring */ rx_queue_clean(dev->data->rx_queues[rx_queue_id]); + dev->data->rx_queue_state[rx_queue_id] = 0; } return 0; @@ -569,6 +571,7 @@ fm10k_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id) FM10K_WRITE_REG(hw, FM10K_TXDCTL(tx_queue_id), FM10K_TXDCTL_ENABLE | txdctl); FM10K_WRITE_FLUSH(hw); + dev->data->tx_queue_state[tx_queue_id] = 1; } else err = -1; @@ -585,6 +588,7 @@ fm10k_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id) if (tx_queue_id < dev->data->nb_tx_queues) { tx_queue_disable(hw, tx_queue_id); tx_queue_clean(dev->data->tx_queues[tx_queue_id]); + dev->data->tx_queue_state[tx_queue_id] = 0; } return 0; diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c index b694400..13e4e6e 100644 --- a/drivers/net/i40e/i40e_ethdev_vf.c +++ b/drivers/net/i40e/i40e_ethdev_vf.c @@ -1373,6 +1373,8 @@ i40evf_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id) if (err) PMD_DRV_LOG(ERR, "Failed to switch RX queue %u on", rx_queue_id); + else + dev->data->rx_queue_state[rx_queue_id] = 1; } return err; @@ -1397,6 +1399,7 @@ i40evf_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id) i40e_rx_queue_release_mbufs(rxq); i40e_reset_rx_queue(rxq); + dev->data->rx_queue_state[rx_queue_id] = 0; } return 0; @@ -1417,6 +1420,8 @@ i40evf_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id) if (err) PMD_DRV_LOG(ERR, "Failed to switch TX queue %u on", tx_queue_id); + else + dev->data->tx_queue_state[tx_queue_id] = 1; } return err; @@ -1441,6 +1446,7 @@ i40evf_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id) i40e_tx_queue_release_mbufs(txq); i40e_reset_tx_queue(txq); + dev->data->tx_queue_state[tx_queue_id] = 0; } return 0; diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c index fd656d5..43c936c 100644 --- a/drivers/net/i40e/i40e_rxtx.c +++ b/drivers/net/i40e/i40e_rxtx.c @@ -2009,7 +2009,8 @@ i40e_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id) i40e_rx_queue_release_mbufs(rxq); i40e_reset_rx_queue(rxq); - } + } else + dev->data->rx_queue_state[rx_queue_id] = 1; } return err; @@ -2038,6 +2039,7 @@ i40e_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id) } i40e_rx_queue_release_mbufs(rxq); i40e_reset_rx_queue(rxq); + dev->data->rx_queue_state[rx_queue_id] = 0; } return 0; @@ -2063,6 +2065,8 @@ i40e_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id) if (err) PMD_DRV_LOG(ERR, "Failed to switch TX queue %u on", tx_queue_id); + else + dev->data->tx_queue_state[tx_queue_id] = 1; } return err; @@ -2092,6 +2096,7 @@ i40e_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id) i40e_tx_queue_release_mbufs(txq); i40e_reset_tx_queue(txq); + dev->data->tx_queue_state[tx_queue_id] = 0; } return 0; diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c index a598a72..8fc869d 100644 --- a/drivers/net/ixgbe/ixgbe_rxtx.c +++ b/drivers/net/ixgbe/ixgbe_rxtx.c @@ -4498,6 +4498,7 @@ ixgbe_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id) rte_wmb(); IXGBE_WRITE_REG(hw, IXGBE_RDH(rxq->reg_idx), 0); IXGBE_WRITE_REG(hw, IXGBE_RDT(rxq->reg_idx), rxq->nb_rx_desc - 1); + dev->data->rx_queue_state[rx_queue_id] = 1; } else return -1; @@ -4541,6 +4542,7 @@ ixgbe_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id) ixgbe_rx_queue_release_mbufs(rxq); ixgbe_reset_rx_queue(adapter, rxq); + dev->data->rx_queue_state[rx_queue_id] = 0; } else return -1; @@ -4583,6 +4585,7 @@ ixgbe_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id) rte_wmb(); IXGBE_WRITE_REG(hw, IXGBE_TDH(txq->reg_idx), 0); IXGBE_WRITE_REG(hw, IXGBE_TDT(txq->reg_idx), 0); + dev->data->tx_queue_state[tx_queue_id] = 1; } else return -1; @@ -4643,6 +4646,7 @@ ixgbe_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id) txq->ops->release_mbufs(txq); txq->ops->reset(txq); } + dev->data->tx_queue_state[tx_queue_id] = 0; } else return -1; diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c index b309309..ebcf2f2 100644 --- a/lib/librte_ether/rte_ethdev.c +++ b/lib/librte_ether/rte_ethdev.c @@ -767,6 +767,13 @@ rte_eth_dev_rx_queue_start(uint8_t port_id, uint16_t rx_queue_id) FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_queue_start, -ENOTSUP); + if (dev->data->rx_queue_state[rx_queue_id] == 1) { + PMD_DEBUG_TRACE("Queue %" PRIu16" of device with port_id=%" PRIu8 + " already started\n", + rx_queue_id, port_id); + return 0; + } + return dev->dev_ops->rx_queue_start(dev, rx_queue_id); } @@ -790,6 +797,13 @@ rte_eth_dev_rx_queue_stop(uint8_t port_id, uint16_t rx_queue_id) FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_queue_stop, -ENOTSUP); + if (dev->data->rx_queue_state[rx_queue_id] == 0) { + PMD_DEBUG_TRACE("Queue %" PRIu16" of device with port_id=%" PRIu8 + " already stopped\n", + rx_queue_id, port_id); + return 0; + } + return dev->dev_ops->rx_queue_stop(dev, rx_queue_id); } @@ -813,6 +827,13 @@ rte_eth_dev_tx_queue_start(uint8_t port_id, uint16_t tx_queue_id) FUNC_PTR_OR_ERR_RET(*dev->dev_ops->tx_queue_start, -ENOTSUP); + if (dev->data->tx_queue_state[tx_queue_id] == 1) { + PMD_DEBUG_TRACE("Queue %" PRIu16" of device with port_id=%" PRIu8 + " already started\n", + tx_queue_id, port_id); + return 0; + } + return dev->dev_ops->tx_queue_start(dev, tx_queue_id); } @@ -836,6 +857,13 @@ rte_eth_dev_tx_queue_stop(uint8_t port_id, uint16_t tx_queue_id) FUNC_PTR_OR_ERR_RET(*dev->dev_ops->tx_queue_stop, -ENOTSUP); + if (dev->data->tx_queue_state[tx_queue_id] == 0) { + PMD_DEBUG_TRACE("Queue %" PRIu16" of device with port_id=%" PRIu8 + " already stopped\n", + tx_queue_id, port_id); + return 0; + } + return dev->dev_ops->tx_queue_stop(dev, tx_queue_id); } diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h index fa06554..3abd888 100644 --- a/lib/librte_ether/rte_ethdev.h +++ b/lib/librte_ether/rte_ethdev.h @@ -1635,6 +1635,10 @@ struct rte_eth_dev_data { all_multicast : 1, /**< RX all multicast mode ON(1) / OFF(0). */ dev_started : 1, /**< Device state: STARTED(1) / STOPPED(0). */ lro : 1; /**< RX LRO is ON(1) / OFF(0) */ + uint8_t rx_queue_state[RTE_MAX_QUEUES_PER_PORT]; + /** Queues state: STARTED(1) / STOPPED(0) */ + uint8_t tx_queue_state[RTE_MAX_QUEUES_PER_PORT]; + /** Queues state: STARTED(1) / STOPPED(0) */ }; /**