[PATCH for-next 5/6] net/mlx5_core: Warn on unsupported events of QP/RQ/SQ

[Majd Dibbiny]

When an event arrives on QP/RQ/SQ, check whether it's supported,
and WARN_ON otherwise.

Signed-off-by: Majd Dibbiny <m...@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/qp.c | 52 ++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/qp.c 
b/drivers/net/ethernet/mellanox/mlx5/core/qp.c
index 27fed69..0b803a1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/qp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/qp.c
@@ -68,6 +68,52 @@ void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common)
                complete(&common->free);
 }
 
+static u64 qp_allowed_event_types(void)
+{
+       u64 mask;
+
+       mask = MLX5_EVENT_TYPE_PATH_MIG |
+              MLX5_EVENT_TYPE_COMM_EST |
+              MLX5_EVENT_TYPE_SQ_DRAINED |
+              MLX5_EVENT_TYPE_SRQ_LAST_WQE |
+              MLX5_EVENT_TYPE_WQ_CATAS_ERROR |
+              MLX5_EVENT_TYPE_PATH_MIG_FAILED |
+              MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR |
+              MLX5_EVENT_TYPE_WQ_ACCESS_ERROR;
+
+       return mask;
+}
+
+static u64 rq_allowed_event_types(void)
+{
+       u64 mask;
+
+       mask = MLX5_EVENT_TYPE_SRQ_LAST_WQE |
+              MLX5_EVENT_TYPE_WQ_CATAS_ERROR;
+
+       return mask;
+}
+
+static u64 sq_allowed_event_types(void)
+{
+       return MLX5_EVENT_TYPE_WQ_CATAS_ERROR;
+}
+
+static bool is_event_type_allowed(int rsc_type, int event_type)
+{
+       switch (rsc_type) {
+       case MLX5_EVENT_QUEUE_TYPE_QP:
+               return !!(BIT(event_type) & qp_allowed_event_types());
+       case MLX5_EVENT_QUEUE_TYPE_RQ:
+               return !!(BIT(event_type) & rq_allowed_event_types());
+       case MLX5_EVENT_QUEUE_TYPE_SQ:
+               return !!(BIT(event_type) & sq_allowed_event_types());
+       default:
+               WARN_ON(1);
+               return false;
+       }
+}
+
 void mlx5_rsc_event(struct mlx5_core_dev *dev, u32 rsn, int event_type)
 {
        struct mlx5_core_rsc_common *common = mlx5_get_rsc(dev, rsn);
@@ -76,6 +122,12 @@ void mlx5_rsc_event(struct mlx5_core_dev *dev, u32 rsn, int 
event_type)
        if (!common)
                return;
 
+       if (!is_event_type_allowed((rsn >> 24), event_type)) {
+               mlx5_core_warn(dev, "event 0x%.2x is not allowed on resource 
0x%.8x\n",
+                              event_type, rsn);
+               return;
+       }
+
        switch (common->res) {
        case MLX5_RES_QP:
        case MLX5_RES_RQ:
-- 
1.8.3.1

--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html