net/e1000: fix Rx and Tx queue status

[ upstream commit b2a0271188f3428ad5dc1ea600e1e2254b9d6781 ]

Igb driver don't enable queue start/stop functions, queue status is not
updated when the HW queue enabled or disabled. It caused application can't
get correct queue status.
This patch fixes the issue by updating the queue states when the queue is
disabled or enabled.

Fixes: be2d648 ("igb: add PF support")

Signed-off-by: Qiming Yang <qiming.yang@intel.com>
Signed-off-by: Mingjin Ye <mingjinx.ye@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

drivers/net/e1000/igb_rxtx.c

@@ -1853,6 +1853,7 @@ igb_dev_clear_queues(struct rte_eth_dev *dev)
 		if (txq != NULL) {
 			igb_tx_queue_release_mbufs(txq);
 			igb_reset_tx_queue(txq, dev);
+			dev->data->tx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED;
 		}
 	}
 
@@ -1861,6 +1862,7 @@ igb_dev_clear_queues(struct rte_eth_dev *dev)
 		if (rxq != NULL) {
 			igb_rx_queue_release_mbufs(rxq);
 			igb_reset_rx_queue(rxq);
+			dev->data->rx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED;
 		}
 	}
 }
@@ -2441,6 +2443,7 @@ eth_igb_rx_init(struct rte_eth_dev *dev)
 		rxdctl |= ((rxq->hthresh & 0x1F) << 8);
 		rxdctl |= ((rxq->wthresh & 0x1F) << 16);
 		E1000_WRITE_REG(hw, E1000_RXDCTL(rxq->reg_idx), rxdctl);
+		dev->data->rx_queue_state[i] = RTE_ETH_QUEUE_STATE_STARTED;
 	}
 
 	if (dev->data->dev_conf.rxmode.offloads & RTE_ETH_RX_OFFLOAD_SCATTER) {
@@ -2605,6 +2608,7 @@ eth_igb_tx_init(struct rte_eth_dev *dev)
 		txdctl |= ((txq->wthresh & 0x1F) << 16);
 		txdctl |= E1000_TXDCTL_QUEUE_ENABLE;
 		E1000_WRITE_REG(hw, E1000_TXDCTL(txq->reg_idx), txdctl);
+		dev->data->tx_queue_state[i] = RTE_ETH_QUEUE_STATE_STARTED;
 	}
 
 	/* Program the Transmit Control Register. */