net/mlx5: fix UAR memory mapping type

[dpdk.git] / drivers / net / mlx5 / mlx5_defs.h

diff --git a/drivers/net/mlx5/mlx5_defs.h b/drivers/net/mlx5/mlx5_defs.h
index 7ed3e88..e5f7acc 100644 (file)
--- a/drivers/net/mlx5/mlx5_defs.h
+++ b/drivers/net/mlx5/mlx5_defs.h
@@ -196,4 +196,15 @@
 #define static_assert _Static_assert
 #endif
 
+/*
+ * Defines the amount of retries to allocate the first UAR in the page.
+ * OFED 5.0.x and Upstream rdma_core before v29 returned the NULL as
+ * UAR base address if UAR was not the first object in the UAR page.
+ * It caused the PMD failure and we should try to get another UAR
+ * till we get the first one with non-NULL base address returned.
+ * Should follow the rdma_core internal (not exported) definition
+ * MLX5_NUM_NON_FP_BFREGS_PER_UAR.
+ */
+#define MLX5_ALLOC_UAR_RETRY 2
+
 #endif /* RTE_PMD_MLX5_DEFS_H_ */