net/ice: fix disabling promiscuous mode

[ upstream commit fa1d598 ]

When promiscuous mode is disabled, allmulticast is
also disabled, even if it was previously enabled.

Add a test in ice_promisc_disable()
to check if allmulticast should be kept enabled.

Fixes: c945e4b ("net/ice: support promiscuous mode")

Signed-off-by: Thibaut Collet <thibaut.collet@6wind.com>
Signed-off-by: Siwar Zitouni <siwar.zitouni@6wind.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

drivers/net/ice/ice_ethdev.c

@@ -4459,8 +4459,11 @@ ice_promisc_disable(struct rte_eth_dev *dev)
 	uint8_t pmask;
 	int ret = 0;
 
-	pmask = ICE_PROMISC_UCAST_RX | ICE_PROMISC_UCAST_TX |
-		ICE_PROMISC_MCAST_RX | ICE_PROMISC_MCAST_TX;
+	if (dev->data->all_multicast == 1)
+		pmask = ICE_PROMISC_UCAST_RX | ICE_PROMISC_UCAST_TX;
+	else
+		pmask = ICE_PROMISC_UCAST_RX | ICE_PROMISC_UCAST_TX |
+			ICE_PROMISC_MCAST_RX | ICE_PROMISC_MCAST_TX;
 
 	status = ice_clear_vsi_promisc(hw, vsi->idx, pmask, 0);
 	if (status != ICE_SUCCESS) {