diff options
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c | 38 |
1 files changed, 29 insertions, 9 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c index a393efaa2fd7..8a7491e9f13d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c @@ -2786,13 +2786,28 @@ void esw_offloads_cleanup(struct mlx5_eswitch *esw) } static int __esw_offloads_load_rep(struct mlx5_eswitch *esw, - struct mlx5_eswitch_rep *rep, u8 rep_type) + struct mlx5_eswitch_rep *rep, + u8 rep_type, bool *newly_loaded) { + int err; + mlx5_esw_assert_reps_locked(esw); + if (newly_loaded) + *newly_loaded = false; + if (atomic_cmpxchg(&rep->rep_data[rep_type].state, - REP_REGISTERED, REP_LOADED) == REP_REGISTERED) - return esw->offloads.rep_ops[rep_type]->load(esw->dev, rep); + REP_REGISTERED, REP_LOADED) != REP_REGISTERED) + return 0; + + err = esw->offloads.rep_ops[rep_type]->load(esw->dev, rep); + if (err) { + atomic_set(&rep->rep_data[rep_type].state, REP_REGISTERED); + return err; + } + + if (newly_loaded) + *newly_loaded = true; return 0; } @@ -2822,22 +2837,27 @@ static void __unload_reps_all_vport(struct mlx5_eswitch *esw, u8 rep_type) static int mlx5_esw_offloads_rep_load(struct mlx5_eswitch *esw, u16 vport_num) { struct mlx5_eswitch_rep *rep; + unsigned long loaded = 0; + bool newly_loaded; int rep_type; int err; rep = mlx5_eswitch_get_rep(esw, vport_num); for (rep_type = 0; rep_type < NUM_REP_TYPES; rep_type++) { - err = __esw_offloads_load_rep(esw, rep, rep_type); + err = __esw_offloads_load_rep(esw, rep, rep_type, + &newly_loaded); if (err) goto err_reps; + if (newly_loaded) + loaded |= BIT(rep_type); } return 0; err_reps: - atomic_set(&rep->rep_data[rep_type].state, REP_REGISTERED); - for (--rep_type; rep_type >= 0; rep_type--) - __esw_offloads_unload_rep(esw, rep, rep_type); + while (--rep_type >= 0) + if (test_bit(rep_type, &loaded)) + __esw_offloads_unload_rep(esw, rep, rep_type); return err; } @@ -3591,13 +3611,13 @@ int mlx5_eswitch_reload_ib_reps(struct mlx5_eswitch *esw) if (atomic_read(&rep->rep_data[REP_ETH].state) != REP_LOADED) return 0; - ret = __esw_offloads_load_rep(esw, rep, REP_IB); + ret = __esw_offloads_load_rep(esw, rep, REP_IB, NULL); if (ret) return ret; mlx5_esw_for_each_rep(esw, i, rep) { if (atomic_read(&rep->rep_data[REP_ETH].state) == REP_LOADED) - __esw_offloads_load_rep(esw, rep, REP_IB); + __esw_offloads_load_rep(esw, rep, REP_IB, NULL); } return 0; |