[dpdk-dev] [RFC PATCH 4/4] librte_pmd_i40e: call _clear_cmd() when error occurs

Bernard Iremonger bernard.iremonger at intel.com
Thu Apr 30 17:42:28 CEST 2015


_clear_cmd() was not being called in failure situations,
resulting in the next command also failing.

Signed-off-by: Bernard Iremonger <bernard.iremonger at intel.com>
---
 lib/librte_pmd_i40e/i40e_ethdev_vf.c |   11 +++++++----
 1 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/lib/librte_pmd_i40e/i40e_ethdev_vf.c b/lib/librte_pmd_i40e/i40e_ethdev_vf.c
index af45064..e31f582 100644
--- a/lib/librte_pmd_i40e/i40e_ethdev_vf.c
+++ b/lib/librte_pmd_i40e/i40e_ethdev_vf.c
@@ -361,6 +361,7 @@ i40evf_execute_vf_cmd(struct rte_eth_dev *dev, struct vf_cmd_info *args)
 		     args->in_args, args->in_args_size, NULL);
 	if (err) {
 		PMD_DRV_LOG(ERR, "fail to send cmd %d", args->ops);
+		_clear_cmd(vf);
 		return err;
 	}
 
@@ -368,8 +369,10 @@ i40evf_execute_vf_cmd(struct rte_eth_dev *dev, struct vf_cmd_info *args)
 	/* read message and it's expected one */
 	if (!err && args->ops == info.ops)
 		_clear_cmd(vf);
-	else if (err)
+	else if (err) {
 		PMD_DRV_LOG(ERR, "Failed to read message from AdminQ");
+		_clear_cmd(vf);
+	}
 	else if (args->ops != info.ops)
 		PMD_DRV_LOG(ERR, "command mismatch, expect %u, get %u",
 			    args->ops, info.ops);
@@ -794,7 +797,7 @@ i40evf_stop_queues(struct rte_eth_dev *dev)
 	/* Stop TX queues first */
 	for (i = 0; i < dev->data->nb_tx_queues; i++) {
 		if (i40evf_dev_tx_queue_stop(dev, i) != 0) {
-			PMD_DRV_LOG(ERR, "Fail to start queue %u", i);
+			PMD_DRV_LOG(ERR, "Fail to stop queue %u", i);
 			return -1;
 		}
 	}
@@ -802,7 +805,7 @@ i40evf_stop_queues(struct rte_eth_dev *dev)
 	/* Then stop RX queues */
 	for (i = 0; i < dev->data->nb_rx_queues; i++) {
 		if (i40evf_dev_rx_queue_stop(dev, i) != 0) {
-			PMD_DRV_LOG(ERR, "Fail to start queue %u", i);
+			PMD_DRV_LOG(ERR, "Fail to stop queue %u", i);
 			return -1;
 		}
 	}
@@ -1432,7 +1435,7 @@ i40evf_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
 		err = i40evf_switch_queue(dev, FALSE, tx_queue_id, FALSE);
 
 		if (err) {
-			PMD_DRV_LOG(ERR, "Failed to switch TX queue %u of",
+			PMD_DRV_LOG(ERR, "Failed to switch TX queue %u off",
 				    tx_queue_id);
 			return err;
 		}
-- 
1.7.4.1



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