net/ixgbe: remove redundant queue id checks
authorFerruh Yigit <ferruh.yigit@intel.com>
Wed, 18 Jul 2018 12:35:22 +0000 (13:35 +0100)
committerFerruh Yigit <ferruh.yigit@intel.com>
Mon, 23 Jul 2018 21:55:26 +0000 (23:55 +0200)
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 <ferruh.yigit@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
drivers/net/ixgbe/ixgbe_rxtx.c

index 3541816..f82b74a 100644 (file)
@@ -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) {