[PATCH 45/45] net/dpaa2: reject Rx queue deferred start

[Prashant Gupta]

From: Hemant Agrawal <hemant.agrawal at nxp.com>

The driver has no way to hold an Rx queue down while the port is started,
and dpaa2_rxq_info_get() already reports rx_deferred_start as 0. The Tx
side rejects the request; do the same for Rx instead of silently
accepting a configuration that will not be honoured.

Signed-off-by: Hemant Agrawal <hemant.agrawal at nxp.com>
---
 drivers/net/dpaa2/dpaa2_ethdev.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/dpaa2/dpaa2_ethdev.c b/drivers/net/dpaa2/dpaa2_ethdev.c
index 7cd38ddce6..596806c18a 100644
--- a/drivers/net/dpaa2/dpaa2_ethdev.c
+++ b/drivers/net/dpaa2/dpaa2_ethdev.c
@@ -1439,6 +1439,13 @@ dpaa2_dev_rx_queue_setup(struct rte_eth_dev *dev,
 	DPAA2_PMD_DEBUG("dev =%p, queue =%d, pool = %p, conf =%p",
 			dev, rx_queue_id, mb_pool, rx_conf);
 
+	/* Rx deferred start is not supported */
+	if (rx_conf->rx_deferred_start) {
+		DPAA2_PMD_ERR("%s: Rx deferred start not supported",
+			dev->data->name);
+		return -EINVAL;
+	}
+
 	total_nb_rx_desc += nb_rx_desc;
 	if (total_nb_rx_desc > MAX_NB_RX_DESC_IN_PEB &&
 	    (priv->options & DPNI_OPT_V1_PFDR_IN_PEB)) {
-- 
2.43.0