net/fm10k: remove redundant queue id checks
authorFerruh Yigit <ferruh.yigit@intel.com>
Wed, 18 Jul 2018 12:35:24 +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
fm10k_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/fm10k/fm10k_ethdev.c

index 7c50545..541a49b 100644 (file)
@@ -810,52 +810,50 @@ static int
 fm10k_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 {
        struct fm10k_hw *hw = FM10K_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-       int err = -1;
+       int err;
        uint32_t reg;
        struct fm10k_rx_queue *rxq;
 
        PMD_INIT_FUNC_TRACE();
 
-       if (rx_queue_id < dev->data->nb_rx_queues) {
-               rxq = dev->data->rx_queues[rx_queue_id];
-               err = rx_queue_reset(rxq);
-               if (err == -ENOMEM) {
-                       PMD_INIT_LOG(ERR, "Failed to alloc memory : %d", err);
-                       return err;
-               } else if (err == -EINVAL) {
-                       PMD_INIT_LOG(ERR, "Invalid buffer address alignment :"
-                               " %d", err);
-                       return err;
-               }
+       rxq = dev->data->rx_queues[rx_queue_id];
+       err = rx_queue_reset(rxq);
+       if (err == -ENOMEM) {
+               PMD_INIT_LOG(ERR, "Failed to alloc memory : %d", err);
+               return err;
+       } else if (err == -EINVAL) {
+               PMD_INIT_LOG(ERR, "Invalid buffer address alignment :"
+                       " %d", err);
+               return err;
+       }
 
-               /* Setup the HW Rx Head and Tail Descriptor Pointers
-                * Note: this must be done AFTER the queue is enabled on real
-                * hardware, but BEFORE the queue is enabled when using the
-                * emulation platform. Do it in both places for now and remove
-                * this comment and the following two register writes when the
-                * emulation platform is no longer being used.
-                */
-               FM10K_WRITE_REG(hw, FM10K_RDH(rx_queue_id), 0);
-               FM10K_WRITE_REG(hw, FM10K_RDT(rx_queue_id), rxq->nb_desc - 1);
+       /* Setup the HW Rx Head and Tail Descriptor Pointers
+        * Note: this must be done AFTER the queue is enabled on real
+        * hardware, but BEFORE the queue is enabled when using the
+        * emulation platform. Do it in both places for now and remove
+        * this comment and the following two register writes when the
+        * emulation platform is no longer being used.
+        */
+       FM10K_WRITE_REG(hw, FM10K_RDH(rx_queue_id), 0);
+       FM10K_WRITE_REG(hw, FM10K_RDT(rx_queue_id), rxq->nb_desc - 1);
 
-               /* Set PF ownership flag for PF devices */
-               reg = FM10K_READ_REG(hw, FM10K_RXQCTL(rx_queue_id));
-               if (hw->mac.type == fm10k_mac_pf)
-                       reg |= FM10K_RXQCTL_PF;
-               reg |= FM10K_RXQCTL_ENABLE;
-               /* enable RX queue */
-               FM10K_WRITE_REG(hw, FM10K_RXQCTL(rx_queue_id), reg);
-               FM10K_WRITE_FLUSH(hw);
+       /* Set PF ownership flag for PF devices */
+       reg = FM10K_READ_REG(hw, FM10K_RXQCTL(rx_queue_id));
+       if (hw->mac.type == fm10k_mac_pf)
+               reg |= FM10K_RXQCTL_PF;
+       reg |= FM10K_RXQCTL_ENABLE;
+       /* enable RX queue */
+       FM10K_WRITE_REG(hw, FM10K_RXQCTL(rx_queue_id), reg);
+       FM10K_WRITE_FLUSH(hw);
 
-               /* Setup the HW Rx Head and Tail Descriptor Pointers
-                * Note: this must be done AFTER the queue is enabled
-                */
-               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] = RTE_ETH_QUEUE_STATE_STARTED;
-       }
+       /* Setup the HW Rx Head and Tail Descriptor Pointers
+        * Note: this must be done AFTER the queue is enabled
+        */
+       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] = RTE_ETH_QUEUE_STATE_STARTED;
 
-       return err;
+       return 0;
 }
 
 static int
@@ -865,14 +863,12 @@ fm10k_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 
        PMD_INIT_FUNC_TRACE();
 
-       if (rx_queue_id < dev->data->nb_rx_queues) {
-               /* Disable RX queue */
-               rx_queue_disable(hw, rx_queue_id);
+       /* Disable RX queue */
+       rx_queue_disable(hw, 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] = RTE_ETH_QUEUE_STATE_STOPPED;
-       }
+       /* Free mbuf and clean HW ring */
+       rx_queue_clean(dev->data->rx_queues[rx_queue_id]);
+       dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
 
        return 0;
 }
@@ -884,28 +880,23 @@ fm10k_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
        /** @todo - this should be defined in the shared code */
 #define FM10K_TXDCTL_WRITE_BACK_MIN_DELAY      0x00010000
        uint32_t txdctl = FM10K_TXDCTL_WRITE_BACK_MIN_DELAY;
-       int err = 0;
+       struct fm10k_tx_queue *q = dev->data->tx_queues[tx_queue_id];
 
        PMD_INIT_FUNC_TRACE();
 
-       if (tx_queue_id < dev->data->nb_tx_queues) {
-               struct fm10k_tx_queue *q = dev->data->tx_queues[tx_queue_id];
-
-               q->ops->reset(q);
+       q->ops->reset(q);
 
-               /* reset head and tail pointers */
-               FM10K_WRITE_REG(hw, FM10K_TDH(tx_queue_id), 0);
-               FM10K_WRITE_REG(hw, FM10K_TDT(tx_queue_id), 0);
+       /* reset head and tail pointers */
+       FM10K_WRITE_REG(hw, FM10K_TDH(tx_queue_id), 0);
+       FM10K_WRITE_REG(hw, FM10K_TDT(tx_queue_id), 0);
 
-               /* enable TX queue */
-               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] = RTE_ETH_QUEUE_STATE_STARTED;
-       } else
-               err = -1;
+       /* enable TX queue */
+       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] = RTE_ETH_QUEUE_STATE_STARTED;
 
-       return err;
+       return 0;
 }
 
 static int
@@ -915,11 +906,9 @@ fm10k_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
 
        PMD_INIT_FUNC_TRACE();
 
-       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] = RTE_ETH_QUEUE_STATE_STOPPED;
-       }
+       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] = RTE_ETH_QUEUE_STATE_STOPPED;
 
        return 0;
 }