mlx5_core: Add support for page faults events and low level handling

[linux-2.6-block.git] / drivers / net / ethernet / mellanox / mlx5 / core / eq.c

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
index ab684463780b4fbd193b79eea5299a743e7a36cd..da82991239a8cb0df3f74e1a14d36037ed2d9a18 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
@@ -157,6 +157,8 @@ static const char *eqe_type_str(u8 type)
                return "MLX5_EVENT_TYPE_CMD";
        case MLX5_EVENT_TYPE_PAGE_REQUEST:
                return "MLX5_EVENT_TYPE_PAGE_REQUEST";
+       case MLX5_EVENT_TYPE_PAGE_FAULT:
+               return "MLX5_EVENT_TYPE_PAGE_FAULT";
        default:
                return "Unrecognized event";
        }
@@ -279,6 +281,11 @@ static int mlx5_eq_int(struct mlx5_core_dev *dev, struct mlx5_eq *eq)
                        }
                        break;
 
+#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
+               case MLX5_EVENT_TYPE_PAGE_FAULT:
+                       mlx5_eq_pagefault(dev, eqe);
+                       break;
+#endif
 
                default:
                        mlx5_core_warn(dev, "Unhandled event 0x%x on EQ 0x%x\n",
@@ -446,8 +453,12 @@ void mlx5_eq_cleanup(struct mlx5_core_dev *dev)
 int mlx5_start_eqs(struct mlx5_core_dev *dev)
 {
        struct mlx5_eq_table *table = &dev->priv.eq_table;
+       u32 async_event_mask = MLX5_ASYNC_EVENT_MASK;
        int err;
 
+       if (dev->caps.gen.flags & MLX5_DEV_CAP_FLAG_ON_DMND_PG)
+               async_event_mask |= (1ull << MLX5_EVENT_TYPE_PAGE_FAULT);
+
        err = mlx5_create_map_eq(dev, &table->cmd_eq, MLX5_EQ_VEC_CMD,
                                 MLX5_NUM_CMD_EQE, 1ull << MLX5_EVENT_TYPE_CMD,
                                 "mlx5_cmd_eq", &dev->priv.uuari.uars[0]);
@@ -459,7 +470,7 @@ int mlx5_start_eqs(struct mlx5_core_dev *dev)
        mlx5_cmd_use_events(dev);
 
        err = mlx5_create_map_eq(dev, &table->async_eq, MLX5_EQ_VEC_ASYNC,
-                                MLX5_NUM_ASYNC_EQE, MLX5_ASYNC_EVENT_MASK,
+                                MLX5_NUM_ASYNC_EQE, async_event_mask,
                                 "mlx5_async_eq", &dev->priv.uuari.uars[0]);
        if (err) {
                mlx5_core_warn(dev, "failed to create async EQ %d\n", err);