From: Guy Levi <guyle@xxxxxxxxxxxx>
mlx4dv_set_ctx_attr lets the user application to set for a mlx4
context varied attributes which are exposed in mlx4dv.h.
First attribute type which is introduced here is used to set the
WQs range size.
Signed-off-by: Guy Levi <guyle@xxxxxxxxxxxx>
Reviewed-by: Yishai Hadas <yishaih@xxxxxxxxxxxx>
---
debian/ibverbs-providers.symbols | 1 +
providers/mlx4/libmlx4.map | 1 +
providers/mlx4/mlx4.c | 17 +++++++++++++++++
providers/mlx4/mlx4dv.h | 13 ++++++++++++-
4 files changed, 31 insertions(+), 1 deletion(-)
diff --git a/debian/ibverbs-providers.symbols b/debian/ibverbs-providers.symbols
index 34d1315..cb21dc5 100644
--- a/debian/ibverbs-providers.symbols
+++ b/debian/ibverbs-providers.symbols
@@ -3,6 +3,7 @@ libmlx4.so.1 ibverbs-providers #MINVER#
mlx4dv_init_obj@MLX4_1.0 15
mlx4dv_query_device@MLX4_1.0 15
mlx4dv_create_qp@MLX4_1.0 15
+ mlx4dv_set_context_attr@MLX4_1.0 15
libmlx5.so.1 ibverbs-providers #MINVER#
MLX5_1.0@MLX5_1.0 13
MLX5_1.1@MLX5_1.1 14
diff --git a/providers/mlx4/libmlx4.map b/providers/mlx4/libmlx4.map
index 6de4348..ac2c772 100644
--- a/providers/mlx4/libmlx4.map
+++ b/providers/mlx4/libmlx4.map
@@ -5,5 +5,6 @@ MLX4_1.0 {
mlx4dv_init_obj;
mlx4dv_query_device;
mlx4dv_create_qp;
+ mlx4dv_set_context_attr;
local: *;
};
diff --git a/providers/mlx4/mlx4.c b/providers/mlx4/mlx4.c
index 600daea..6158924 100644
--- a/providers/mlx4/mlx4.c
+++ b/providers/mlx4/mlx4.c
@@ -443,3 +443,20 @@ int mlx4dv_query_device(struct ibv_context *ctx_in,
return 0;
}
+
+int mlx4dv_set_context_attr(struct ibv_context *context,
+ enum mlx4dv_set_ctx_attr_type attr_type,
+ void *attr)
+{
+ struct mlx4_context *ctx = to_mctx(context);
+
+ switch (attr_type) {
+ case MLX4DV_SET_CTX_ATTR_LOG_WQS_RANGE_SZ:
+ ctx->log_wqs_range_sz = *((uint8_t *)attr);
+ break;
+ default:
+ return ENOTSUP;
+ }
+
+ return 0;
+}
diff --git a/providers/mlx4/mlx4dv.h b/providers/mlx4/mlx4dv.h
index 5a47e65..453de55 100644
--- a/providers/mlx4/mlx4dv.h
+++ b/providers/mlx4/mlx4dv.h
@@ -498,5 +498,16 @@ void mlx4dv_set_data_seg(struct mlx4_wqe_data_seg *seg,
int mlx4dv_query_device(struct ibv_context *ctx_in,
struct mlx4dv_context *attrs_out);
-#endif /* _MLX4DV_H_ */
+enum mlx4dv_set_ctx_attr_type {
+ /* Attribute type uint8_t */
+ MLX4DV_SET_CTX_ATTR_LOG_WQS_RANGE_SZ = 0,
+};
+/*
+ * Returns 0 on success, or the value of errno on failure
+ * (which indicates the failure reason).
+ */
+int mlx4dv_set_context_attr(struct ibv_context *context,
+ enum mlx4dv_set_ctx_attr_type attr_type,
+ void *attr);
+#endif /* _MLX4DV_H_ */
--
1.8.3.1
--
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