RDMA/mlx5: Recover from fatal event in dual port mode

When there is fatal event on the slave port, the device is marked as not
active. We need to mark it as active again when the slave is recovered to
regain full functionality.

Fixes: d69a24e0 ("IB/mlx5: Move IB event processing onto a workqueue")
Link: https://lore.kernel.org/r/8906754455bb23019ef223c725d2c0d38acfb80b.1620711734.git.leonro@nvidia.comSigned-off-by: NMaor Gottlieb <maorg@nvidia.com>
Signed-off-by: NLeon Romanovsky <leonro@nvidia.com>
Signed-off-by: NJason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/hw/mlx5/main.c

@@ -4419,6 +4419,7 @@ static int mlx5r_mp_probe(struct auxiliary_device *adev,
 
 		if (bound) {
 			rdma_roce_rescan_device(&dev->ib_dev);
+			mpi->ibdev->ib_active = true;
 			break;
 		}
 	}