net/mlx5: LAG, reload representors on LAG creation failure

JIRA: https://issues.redhat.com/browse/RHEL-72226
JIRA: https://issues.redhat.com/browse/RHEL-73517
Upstream-status: v6.15-rc1

commit bdf549a
Author: Mark Bloch <mbloch@nvidia.com>
Date:   Tue Mar 18 22:51:16 2025 +0200

    net/mlx5: LAG, reload representors on LAG creation failure

    When LAG creation fails, the driver reloads the RDMA devices. If RDMA
    representors are present, they should also be reloaded. This step was
    missed in the cited commit.

    Fixes: 598fe77 ("net/mlx5: Lag, Create shared FDB when in switchdev mode")
    Signed-off-by: Mark Bloch <mbloch@nvidia.com>
    Reviewed-by: Shay Drori <shayd@nvidia.com>
    Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
    Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
    Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
    Link: https://patch.msgid.link/1742331077-102038-2-git-send-email-tariqt@nvidia.com
    Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Signed-off-by: Benjamin Poirier <bpoirier@redhat.com>

Author: Benjamin Poirier

drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c

@@ -1031,6 +1031,10 @@ static void mlx5_do_bond(struct mlx5_lag *ldev)
 		if (err) {
 			if (shared_fdb || roce_lag)
 				mlx5_lag_add_devices(ldev);
+			if (shared_fdb) {
+				mlx5_ldev_for_each(i, 0, ldev)
+					mlx5_eswitch_reload_ib_reps(ldev->pf[i].dev->priv.eswitch);
+			}
 
 			return;
 		} else if (roce_lag) {