[PATCH 04/10] net/idpf: prevent Rx path selection after device start

[Ciara Loftus <ciara.loftus@intel.com>]

To fall in line with other drivers using the Rx path selection
infrastructure, prevent Rx path selection after the device has started.

Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
---
 drivers/net/intel/idpf/idpf_rxtx.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/intel/idpf/idpf_rxtx.c b/drivers/net/intel/idpf/idpf_rxtx.c
index cee454244f..de880bdc5f 100644
--- a/drivers/net/intel/idpf/idpf_rxtx.c
+++ b/drivers/net/intel/idpf/idpf_rxtx.c
@@ -783,6 +783,10 @@ idpf_set_rx_function(struct rte_eth_dev *dev)
 	struct idpf_rx_queue *rxq;
 	int i;
 
+	/* If the device has started the function has already been selected. */
+	if (dev->data->dev_started)
+		goto out;
+
 	if (idpf_rx_vec_dev_check_default(dev) == IDPF_VECTOR_PATH &&
 	    rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_256)
 		req_features.simd_width = idpf_get_max_simd_bitwidth();
@@ -814,6 +818,7 @@ idpf_set_rx_function(struct rte_eth_dev *dev)
 	}
 #endif
 
+out:
 	dev->rx_pkt_burst = idpf_rx_path_infos[ad->rx_func_type].pkt_burst;
 	PMD_DRV_LOG(NOTICE, "Using %s Rx (port %d).",
 			idpf_rx_path_infos[ad->rx_func_type].info, dev->data->port_id);
-- 
2.43.0