From: Michael Qiu <michael.qiu@intel.com>
Date: Tue, 27 Jan 2015 12:16:18 +0000 (+0800)
Subject: ixgbe: add queue start failure check
X-Git-Tag: spdx-start~9826
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=bfca21f8a0defa7173895ba00e30f685b3209b81;p=dpdk.git

ixgbe: add queue start failure check

For ixgbe, when queue start fails, for example, mbuf allocate
failure, the device will still start successfully, which could be
an issue.

Add return status check of queue start to avoid this issue.

Signed-off-by: Michael Qiu <michael.qiu@intel.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
---

diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
index 07b72d7289..b341dd0c07 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
@@ -1495,7 +1495,11 @@ ixgbe_dev_start(struct rte_eth_dev *dev)
 		goto error;
 	}
 
-	ixgbe_dev_rxtx_start(dev);
+	err = ixgbe_dev_rxtx_start(dev);
+	if (err < 0) {
+		PMD_INIT_LOG(ERR, "Unable to start rxtx queues");
+		goto error;
+	}
 
 	if (ixgbe_is_sfp(hw) && hw->phy.multispeed_fiber) {
 		err = hw->mac.ops.setup_sfp(hw);
diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.h b/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
index 677c2570c5..1383194a67 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
+++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
@@ -265,7 +265,7 @@ int ixgbe_dev_rx_init(struct rte_eth_dev *dev);
 
 void ixgbe_dev_tx_init(struct rte_eth_dev *dev);
 
-void ixgbe_dev_rxtx_start(struct rte_eth_dev *dev);
+int ixgbe_dev_rxtx_start(struct rte_eth_dev *dev);
 
 int ixgbe_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id);
 
diff --git a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
index 840bc07f0e..e6766b332a 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
@@ -3806,7 +3806,7 @@ ixgbe_setup_loopback_link_82599(struct ixgbe_hw *hw)
 /*
  * Start Transmit and Receive Units.
  */
-void
+int
 ixgbe_dev_rxtx_start(struct rte_eth_dev *dev)
 {
 	struct ixgbe_hw     *hw;
@@ -3816,6 +3816,7 @@ ixgbe_dev_rxtx_start(struct rte_eth_dev *dev)
 	uint32_t dmatxctl;
 	uint32_t rxctrl;
 	uint16_t i;
+	int ret = 0;
 
 	PMD_INIT_FUNC_TRACE();
 	hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
@@ -3838,14 +3839,20 @@ ixgbe_dev_rxtx_start(struct rte_eth_dev *dev)
 
 	for (i = 0; i < dev->data->nb_tx_queues; i++) {
 		txq = dev->data->tx_queues[i];
-		if (!txq->tx_deferred_start)
-			ixgbe_dev_tx_queue_start(dev, i);
+		if (!txq->tx_deferred_start) {
+			ret = ixgbe_dev_tx_queue_start(dev, i);
+			if (ret < 0)
+				return ret;
+		}
 	}
 
 	for (i = 0; i < dev->data->nb_rx_queues; i++) {
 		rxq = dev->data->rx_queues[i];
-		if (!rxq->rx_deferred_start)
-			ixgbe_dev_rx_queue_start(dev, i);
+		if (!rxq->rx_deferred_start) {
+			ret = ixgbe_dev_rx_queue_start(dev, i);
+			if (ret < 0)
+				return ret;
+		}
 	}
 
 	/* Enable Receive engine */
@@ -3860,6 +3867,7 @@ ixgbe_dev_rxtx_start(struct rte_eth_dev *dev)
 			dev->data->dev_conf.lpbk_mode == IXGBE_LPBK_82599_TX_RX)
 		ixgbe_setup_loopback_link_82599(hw);
 
+	return 0;
 }
 
 /*