[PATCH v2 01/10] net/i40e: permit secondary process Rx path selection

[Ciara Loftus]

Commit 258f346f5d5e ("net/i40e: use same Rx path across processes")
changed the way that secondary processes selected their Rx burst
function. Instead of letting secondary processes select their own
function, they now used the function selected by the primary process.
However, the primary process only selects the function at device start,
so if the primary process hadn't started the device by the time the
secondary process was selecting its Rx burst function, the secondary
process would not select the correct function.

This commit addresses this issue by allowing the secondary process to
select the path if the device has not been started yet.

Fixes: 258f346f5d5e ("net/i40e: use same Rx path across processes")
Cc: stable at dpdk.org

Signed-off-by: Ciara Loftus <ciara.loftus at intel.com>
---
 drivers/net/intel/i40e/i40e_rxtx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/intel/i40e/i40e_rxtx.c b/drivers/net/intel/i40e/i40e_rxtx.c
index 1c3586778c..3deeff165d 100644
--- a/drivers/net/intel/i40e/i40e_rxtx.c
+++ b/drivers/net/intel/i40e/i40e_rxtx.c
@@ -3494,8 +3494,8 @@ i40e_set_rx_function(struct rte_eth_dev *dev)
 	uint16_t i;
 	enum rte_vect_max_simd rx_simd_width = i40e_get_max_simd_bitwidth();
 
-	/* The primary process selects the rx path for all processes. */
-	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+	/* If the device has started the function has already been selected. */
+	if (dev->data->dev_started)
 		goto out;
 
 	/* In order to allow Vector Rx there are a few configuration
-- 
2.43.0