net/mlx4_core: Raise slave shutdown event upon FLR

There might be cases that PF doesn't get a "reset" command upon slave down
(e.g. virsh destroy). In these cases, however, an FLR event is issued.

Therefore, when the PF receives an FLR event for a slave, it should also
generate a shutdown event on the PF for that slave, to let the PF upper
layers (mlx4_ib, eth) perform any required cleanup/actions associated
with slave shutdown.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
index 190fd624bdfebd6e7b5b9e83f8470b840f8d09cb..2619c9fbf42dfb952473e4779a2ee8d6ebfd2c65 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx4/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/eq.c
@@ -702,6 +702,8 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
                                priv->mfunc.master.slave_state[flr_slave].is_slave_going_down = 1;
                        }
                        spin_unlock_irqrestore(&priv->mfunc.master.slave_state_lock, flags);
+                       mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_SHUTDOWN,
+                                           flr_slave);
                        queue_work(priv->mfunc.master.comm_wq,
                                   &priv->mfunc.master.slave_flr_event_work);
                        break;