enic: Obtain the Link speed only after the link comes up

The link speed is obtained in the RX adaptive coalescing function. It
was being called at probe time when the link may not be up. Change the
call to run after the Link comes up.

The impact of not getting the correct link speed was that the low end of
the adaptive interrupt range was always being set to 0 which could have
caused a slight increase in the number of RX interrupts.

Co-developed-by: Nelson Escobar <[email protected]>
Signed-off-by: Nelson Escobar <[email protected]>
Co-developed-by: Satish Kharat <[email protected]>
Signed-off-by: Satish Kharat <[email protected]>
Signed-off-by: John Daley <[email protected]>
Reviewed-by: Kalesh AP <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: johndale88

drivers/net/ethernet/cisco/enic/enic_main.c

@@ -466,6 +466,7 @@ static void enic_link_check(struct enic *enic)
 	if (link_status && !carrier_ok) {
 		netdev_info(enic->netdev, "Link UP\n");
 		netif_carrier_on(enic->netdev);
+		enic_set_rx_coal_setting(enic);
 	} else if (!link_status && carrier_ok) {
 		netdev_info(enic->netdev, "Link DOWN\n");
 		netif_carrier_off(enic->netdev);
@@ -3063,7 +3064,6 @@ static int enic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	timer_setup(&enic->notify_timer, enic_notify_timer, 0);
 
 	enic_rfs_flw_tbl_init(enic);
-	enic_set_rx_coal_setting(enic);
 	INIT_WORK(&enic->reset, enic_reset);
 	INIT_WORK(&enic->tx_hang_reset, enic_tx_hang_reset);
 	INIT_WORK(&enic->change_mtu_work, enic_change_mtu_work);