[dpdk-stable] patch 'ethdev: fix queue start' has been queued to stable release 18.02.2

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 18.02.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/02/18. So please
shout if anyone has objections.

Thanks.

Luca Boccassi

---
>From 908b87479520671337bc7d08d27b49148d9afefb Mon Sep 17 00:00:00 2001
From: Qi Zhang <qi.z.zhang at intel.com>
Date: Thu, 22 Mar 2018 20:59:01 +0800
Subject: [PATCH] ethdev: fix queue start

[ upstream commit 239c9b435ad4abcac89b5d2480a0c21ce8b8288f ]

Device must be started before start any queue.

Fixes: 0748be2cf9a2 ("ethdev: queue start and stop")

Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev at intel.com>
---
 lib/librte_ether/rte_ethdev.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 3b885a62c..137428402 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -731,6 +731,12 @@ rte_eth_dev_rx_queue_start(uint16_t port_id, uint16_t rx_queue_id)
 	RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -EINVAL);
 
 	dev = &rte_eth_devices[port_id];
+	if (!dev->data->dev_started) {
+		RTE_PMD_DEBUG_TRACE(
+		    "port %d must be started before start any queue\n", port_id);
+		return -EINVAL;
+	}
+
 	if (rx_queue_id >= dev->data->nb_rx_queues) {
 		RTE_PMD_DEBUG_TRACE("Invalid RX queue_id=%d\n", rx_queue_id);
 		return -EINVAL;
@@ -784,6 +790,12 @@ rte_eth_dev_tx_queue_start(uint16_t port_id, uint16_t tx_queue_id)
 	RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -EINVAL);
 
 	dev = &rte_eth_devices[port_id];
+	if (!dev->data->dev_started) {
+		RTE_PMD_DEBUG_TRACE(
+		    "port %d must be started before start any queue\n", port_id);
+		return -EINVAL;
+	}
+
 	if (tx_queue_id >= dev->data->nb_tx_queues) {
 		RTE_PMD_DEBUG_TRACE("Invalid TX queue_id=%d\n", tx_queue_id);
 		return -EINVAL;
-- 
2.14.2