net/mlx4: update link status upon probing with LSC

If LSC interrupts are enabled, the application expects the link_update
ops to be executed by the PMD itself.

No link status change event is received upon probing, therefore the link
status update must be forced.

Fixes: c4da6caa426d ("mlx4: handle link status interrupts")
Cc: stable@dpdk.org
Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index 79efaaa..6538e94 100644 (file)
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -5836,6 +5836,9 @@ mlx4_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
                /* Bring Ethernet device up. */
                DEBUG("forcing Ethernet interface up");
                priv_set_flags(priv, ~IFF_UP, IFF_UP);
+               /* Update link status once if waiting for LSC. */
+               if (eth_dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC)
+                       mlx4_link_update(eth_dev, 0);
                continue;
 
 port_error: