RDMA/core: Add trace points to follow MR allocation

[linux.git] / include / trace / events / rdma_core.h

diff --git a/include/trace/events/rdma_core.h b/include/trace/events/rdma_core.h
index 08f481554e7fa2b60badbbf0d31ec9c8e7e4093c..17642aa54437bf6635b690a4772a12789ce3ba19 100644 (file)
--- a/include/trace/events/rdma_core.h
+++ b/include/trace/events/rdma_core.h
@@ -266,6 +266,129 @@ TRACE_EVENT(cq_free,
        TP_printk("cq.id=%u", __entry->cq_id)
 );
 
+/**
+ ** Memory Region events
+ **/
+
+/*
+ * enum ib_mr_type, from include/rdma/ib_verbs.h
+ */
+#define IB_MR_TYPE_LIST                                \
+       ib_mr_type_item(MEM_REG)                \
+       ib_mr_type_item(SG_GAPS)                \
+       ib_mr_type_item(DM)                     \
+       ib_mr_type_item(USER)                   \
+       ib_mr_type_item(DMA)                    \
+       ib_mr_type_end(INTEGRITY)
+
+#undef ib_mr_type_item
+#undef ib_mr_type_end
+
+#define ib_mr_type_item(x)     TRACE_DEFINE_ENUM(IB_MR_TYPE_##x);
+#define ib_mr_type_end(x)      TRACE_DEFINE_ENUM(IB_MR_TYPE_##x);
+
+IB_MR_TYPE_LIST
+
+#undef ib_mr_type_item
+#undef ib_mr_type_end
+
+#define ib_mr_type_item(x)     { IB_MR_TYPE_##x, #x },
+#define ib_mr_type_end(x)      { IB_MR_TYPE_##x, #x }
+
+#define rdma_show_ib_mr_type(x) \
+               __print_symbolic(x, IB_MR_TYPE_LIST)
+
+TRACE_EVENT(mr_alloc,
+       TP_PROTO(
+               const struct ib_pd *pd,
+               enum ib_mr_type mr_type,
+               u32 max_num_sg,
+               const struct ib_mr *mr
+       ),
+
+       TP_ARGS(pd, mr_type, max_num_sg, mr),
+
+       TP_STRUCT__entry(
+               __field(u32, pd_id)
+               __field(u32, mr_id)
+               __field(u32, max_num_sg)
+               __field(int, rc)
+               __field(unsigned long, mr_type)
+       ),
+
+       TP_fast_assign(
+               __entry->pd_id = pd->res.id;
+               if (IS_ERR(mr)) {
+                       __entry->mr_id = 0;
+                       __entry->rc = PTR_ERR(mr);
+               } else {
+                       __entry->mr_id = mr->res.id;
+                       __entry->rc = 0;
+               }
+               __entry->max_num_sg = max_num_sg;
+               __entry->mr_type = mr_type;
+       ),
+
+       TP_printk("pd.id=%u mr.id=%u type=%s max_num_sg=%u rc=%d",
+               __entry->pd_id, __entry->mr_id,
+               rdma_show_ib_mr_type(__entry->mr_type),
+               __entry->max_num_sg, __entry->rc)
+);
+
+TRACE_EVENT(mr_integ_alloc,
+       TP_PROTO(
+               const struct ib_pd *pd,
+               u32 max_num_data_sg,
+               u32 max_num_meta_sg,
+               const struct ib_mr *mr
+       ),
+
+       TP_ARGS(pd, max_num_data_sg, max_num_meta_sg, mr),
+
+       TP_STRUCT__entry(
+               __field(u32, pd_id)
+               __field(u32, mr_id)
+               __field(u32, max_num_data_sg)
+               __field(u32, max_num_meta_sg)
+               __field(int, rc)
+       ),
+
+       TP_fast_assign(
+               __entry->pd_id = pd->res.id;
+               if (IS_ERR(mr)) {
+                       __entry->mr_id = 0;
+                       __entry->rc = PTR_ERR(mr);
+               } else {
+                       __entry->mr_id = mr->res.id;
+                       __entry->rc = 0;
+               }
+               __entry->max_num_data_sg = max_num_data_sg;
+               __entry->max_num_meta_sg = max_num_meta_sg;
+       ),
+
+       TP_printk("pd.id=%u mr.id=%u max_num_data_sg=%u max_num_meta_sg=%u rc=%d",
+               __entry->pd_id, __entry->mr_id, __entry->max_num_data_sg,
+               __entry->max_num_meta_sg, __entry->rc)
+);
+
+TRACE_EVENT(mr_dereg,
+       TP_PROTO(
+               const struct ib_mr *mr
+       ),
+
+       TP_ARGS(mr),
+
+       TP_STRUCT__entry(
+               __field(u32, id)
+       ),
+
+       TP_fast_assign(
+               __entry->id = mr->res.id;
+       ),
+
+       TP_printk("mr.id=%u", __entry->id)
+);
+
 #endif /* _TRACE_RDMA_CORE_H */
 
 #include <trace/define_trace.h>