[PATCH] net/cnxk: fix promiscuous state after MAC change

[Rahul Bhansali <rbhansali@marvell.com>]

If promiscuous mode is enabled and default MAC address is set
again then promiscuous mode gets disabled in hardware.

This change will restore promiscuous behavior after configuring
default MAC address.

Fixes: 5fe86db2a0dd ("net/cnxk: support MAC address set")
Cc: stable@dpdk.org

Signed-off-by: Rahul Bhansali <rbhansali@marvell.com>
---
 drivers/net/cnxk/cnxk_ethdev_ops.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/cnxk/cnxk_ethdev_ops.c b/drivers/net/cnxk/cnxk_ethdev_ops.c
index c8260fcb9c..b1093dd584 100644
--- a/drivers/net/cnxk/cnxk_ethdev_ops.c
+++ b/drivers/net/cnxk/cnxk_ethdev_ops.c
@@ -451,6 +451,13 @@ cnxk_nix_mac_addr_set(struct rte_eth_dev *eth_dev, struct rte_ether_addr *addr)
 			roc_nix_npc_mac_addr_set(nix, dev->mac_addr);
 			goto exit;
 		}
+
+		if (eth_dev->data->promiscuous) {
+			rc = roc_nix_mac_promisc_mode_enable(nix, true);
+			if (rc)
+				plt_err("Failed to setup promisc mode in mac, rc=%d(%s)", rc,
+					roc_error_msg_get(rc));
+		}
 	}
 
 	/* Update mac address to cnxk ethernet device */
-- 
2.25.1