From a8cdaf0964f76c9a2b56f0387b3a3eb1493edc3d Mon Sep 17 00:00:00 2001 From: Ferruh Yigit Date: Wed, 18 Jul 2018 13:35:22 +0100 Subject: [PATCH] net/ixgbe: remove redundant queue id checks remove queue id checks from dev_ops ixgbe_dev_[rx/tx]_queue_[start/stop] queue id checks already done by ethdev APIs that are calling these dev_ops Signed-off-by: Ferruh Yigit Acked-by: Qi Zhang --- drivers/net/ixgbe/ixgbe_rxtx.c | 139 +++++++++++++++------------------ 1 file changed, 63 insertions(+), 76 deletions(-) diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c index 3541816642..f82b74a9a4 100644 --- a/drivers/net/ixgbe/ixgbe_rxtx.c +++ b/drivers/net/ixgbe/ixgbe_rxtx.c @@ -5176,34 +5176,30 @@ ixgbe_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id) PMD_INIT_FUNC_TRACE(); hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); - if (rx_queue_id < dev->data->nb_rx_queues) { - rxq = dev->data->rx_queues[rx_queue_id]; - - /* Allocate buffers for descriptor rings */ - if (ixgbe_alloc_rx_queue_mbufs(rxq) != 0) { - PMD_INIT_LOG(ERR, "Could not alloc mbuf for queue:%d", - rx_queue_id); - return -1; - } - rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx)); - rxdctl |= IXGBE_RXDCTL_ENABLE; - IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(rxq->reg_idx), rxdctl); + rxq = dev->data->rx_queues[rx_queue_id]; - /* Wait until RX Enable ready */ - poll_ms = RTE_IXGBE_REGISTER_POLL_WAIT_10_MS; - do { - rte_delay_ms(1); - rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx)); - } while (--poll_ms && !(rxdctl & IXGBE_RXDCTL_ENABLE)); - if (!poll_ms) - PMD_INIT_LOG(ERR, "Could not enable Rx Queue %d", - 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] = RTE_ETH_QUEUE_STATE_STARTED; - } else + /* Allocate buffers for descriptor rings */ + if (ixgbe_alloc_rx_queue_mbufs(rxq) != 0) { + PMD_INIT_LOG(ERR, "Could not alloc mbuf for queue:%d", + rx_queue_id); return -1; + } + rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx)); + rxdctl |= IXGBE_RXDCTL_ENABLE; + IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(rxq->reg_idx), rxdctl); + + /* Wait until RX Enable ready */ + poll_ms = RTE_IXGBE_REGISTER_POLL_WAIT_10_MS; + do { + rte_delay_ms(1); + rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx)); + } while (--poll_ms && !(rxdctl & IXGBE_RXDCTL_ENABLE)); + if (!poll_ms) + PMD_INIT_LOG(ERR, "Could not enable Rx Queue %d", 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] = RTE_ETH_QUEUE_STATE_STARTED; return 0; } @@ -5224,30 +5220,26 @@ ixgbe_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id) PMD_INIT_FUNC_TRACE(); hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); - if (rx_queue_id < dev->data->nb_rx_queues) { - rxq = dev->data->rx_queues[rx_queue_id]; + rxq = dev->data->rx_queues[rx_queue_id]; + + rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx)); + rxdctl &= ~IXGBE_RXDCTL_ENABLE; + IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(rxq->reg_idx), rxdctl); + /* Wait until RX Enable bit clear */ + poll_ms = RTE_IXGBE_REGISTER_POLL_WAIT_10_MS; + do { + rte_delay_ms(1); rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx)); - rxdctl &= ~IXGBE_RXDCTL_ENABLE; - IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(rxq->reg_idx), rxdctl); + } while (--poll_ms && (rxdctl & IXGBE_RXDCTL_ENABLE)); + if (!poll_ms) + PMD_INIT_LOG(ERR, "Could not disable Rx Queue %d", rx_queue_id); - /* Wait until RX Enable bit clear */ - poll_ms = RTE_IXGBE_REGISTER_POLL_WAIT_10_MS; - do { - rte_delay_ms(1); - rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx)); - } while (--poll_ms && (rxdctl & IXGBE_RXDCTL_ENABLE)); - if (!poll_ms) - PMD_INIT_LOG(ERR, "Could not disable Rx Queue %d", - rx_queue_id); - - rte_delay_us(RTE_IXGBE_WAIT_100_US); + rte_delay_us(RTE_IXGBE_WAIT_100_US); - ixgbe_rx_queue_release_mbufs(rxq); - ixgbe_reset_rx_queue(adapter, rxq); - dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED; - } else - return -1; + ixgbe_rx_queue_release_mbufs(rxq); + ixgbe_reset_rx_queue(adapter, rxq); + dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED; return 0; } @@ -5267,30 +5259,27 @@ ixgbe_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id) PMD_INIT_FUNC_TRACE(); hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); - if (tx_queue_id < dev->data->nb_tx_queues) { - txq = dev->data->tx_queues[tx_queue_id]; - txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(txq->reg_idx)); - txdctl |= IXGBE_TXDCTL_ENABLE; - IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(txq->reg_idx), txdctl); + txq = dev->data->tx_queues[tx_queue_id]; + txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(txq->reg_idx)); + txdctl |= IXGBE_TXDCTL_ENABLE; + IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(txq->reg_idx), txdctl); - /* Wait until TX Enable ready */ - if (hw->mac.type == ixgbe_mac_82599EB) { - poll_ms = RTE_IXGBE_REGISTER_POLL_WAIT_10_MS; - do { - rte_delay_ms(1); - txdctl = IXGBE_READ_REG(hw, - IXGBE_TXDCTL(txq->reg_idx)); - } while (--poll_ms && !(txdctl & IXGBE_TXDCTL_ENABLE)); - if (!poll_ms) - PMD_INIT_LOG(ERR, "Could not enable " - "Tx Queue %d", 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] = RTE_ETH_QUEUE_STATE_STARTED; - } else - return -1; + /* Wait until TX Enable ready */ + if (hw->mac.type == ixgbe_mac_82599EB) { + poll_ms = RTE_IXGBE_REGISTER_POLL_WAIT_10_MS; + do { + rte_delay_ms(1); + txdctl = IXGBE_READ_REG(hw, + IXGBE_TXDCTL(txq->reg_idx)); + } while (--poll_ms && !(txdctl & IXGBE_TXDCTL_ENABLE)); + if (!poll_ms) + PMD_INIT_LOG(ERR, "Could not enable Tx Queue %d", + 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] = RTE_ETH_QUEUE_STATE_STARTED; return 0; } @@ -5310,9 +5299,6 @@ ixgbe_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id) PMD_INIT_FUNC_TRACE(); hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); - if (tx_queue_id >= dev->data->nb_tx_queues) - return -1; - txq = dev->data->tx_queues[tx_queue_id]; /* Wait until TX queue is empty */ @@ -5326,8 +5312,9 @@ ixgbe_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id) IXGBE_TDT(txq->reg_idx)); } while (--poll_ms && (txtdh != txtdt)); if (!poll_ms) - PMD_INIT_LOG(ERR, "Tx Queue %d is not empty " - "when stopping.", tx_queue_id); + PMD_INIT_LOG(ERR, + "Tx Queue %d is not empty when stopping.", + tx_queue_id); } txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(txq->reg_idx)); @@ -5343,8 +5330,8 @@ ixgbe_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id) IXGBE_TXDCTL(txq->reg_idx)); } while (--poll_ms && (txdctl & IXGBE_TXDCTL_ENABLE)); if (!poll_ms) - PMD_INIT_LOG(ERR, "Could not disable " - "Tx Queue %d", tx_queue_id); + PMD_INIT_LOG(ERR, "Could not disable Tx Queue %d", + tx_queue_id); } if (txq->ops != NULL) { -- 2.20.1