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authorChuck Lever <chuck.lever@oracle.com>2019-12-18 15:18:20 -0500
committerJason Gunthorpe <jgg@mellanox.com>2020-01-07 16:10:53 -0400
commit622db5b6439ab4d28a44d2d49d58050e59cac781 (patch)
tree03e9b9d65ef5117dc6303fc84d355801e8130478 /include/trace/events/rdma_core.h
parentRDMA/core: Trace points for diagnosing completion queue issues (diff)
downloadlinux-dev-622db5b6439ab4d28a44d2d49d58050e59cac781.tar.xz
linux-dev-622db5b6439ab4d28a44d2d49d58050e59cac781.zip
RDMA/core: Add trace points to follow MR allocation
Track the lifetime of ib_mr objects. Here's sample output from a test run with NFS/RDMA: <...>-361 [009] 79238.772782: mr_alloc: pd.id=3 mr.id=11 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79238.772812: mr_alloc: pd.id=3 mr.id=12 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79238.772839: mr_alloc: pd.id=3 mr.id=13 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79238.772866: mr_alloc: pd.id=3 mr.id=14 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79238.772893: mr_alloc: pd.id=3 mr.id=15 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79238.772921: mr_alloc: pd.id=3 mr.id=16 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79238.772947: mr_alloc: pd.id=3 mr.id=17 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79238.772974: mr_alloc: pd.id=3 mr.id=18 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79238.773001: mr_alloc: pd.id=3 mr.id=19 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79238.773028: mr_alloc: pd.id=3 mr.id=20 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79238.773055: mr_alloc: pd.id=3 mr.id=21 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79240.270942: mr_alloc: pd.id=3 mr.id=22 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79240.270975: mr_alloc: pd.id=3 mr.id=23 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79240.271007: mr_alloc: pd.id=3 mr.id=24 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79240.271036: mr_alloc: pd.id=3 mr.id=25 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79240.271067: mr_alloc: pd.id=3 mr.id=26 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79240.271095: mr_alloc: pd.id=3 mr.id=27 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79240.271121: mr_alloc: pd.id=3 mr.id=28 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79240.271153: mr_alloc: pd.id=3 mr.id=29 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79240.271181: mr_alloc: pd.id=3 mr.id=30 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79240.271208: mr_alloc: pd.id=3 mr.id=31 type=MEM_REG max_num_sg=30 rc=0 <...>-361 [009] 79240.271236: mr_alloc: pd.id=3 mr.id=32 type=MEM_REG max_num_sg=30 rc=0 <...>-4351 [001] 79242.299400: mr_dereg: mr.id=32 <...>-4351 [001] 79242.299467: mr_dereg: mr.id=31 <...>-4351 [001] 79242.299554: mr_dereg: mr.id=30 <...>-4351 [001] 79242.299615: mr_dereg: mr.id=29 <...>-4351 [001] 79242.299684: mr_dereg: mr.id=28 <...>-4351 [001] 79242.299748: mr_dereg: mr.id=27 <...>-4351 [001] 79242.299812: mr_dereg: mr.id=26 <...>-4351 [001] 79242.299874: mr_dereg: mr.id=25 <...>-4351 [001] 79242.299944: mr_dereg: mr.id=24 <...>-4351 [001] 79242.300009: mr_dereg: mr.id=23 <...>-4351 [001] 79242.300190: mr_dereg: mr.id=22 <...>-4351 [001] 79242.300263: mr_dereg: mr.id=21 <...>-4351 [001] 79242.300326: mr_dereg: mr.id=20 <...>-4351 [001] 79242.300388: mr_dereg: mr.id=19 <...>-4351 [001] 79242.300450: mr_dereg: mr.id=18 <...>-4351 [001] 79242.300516: mr_dereg: mr.id=17 <...>-4351 [001] 79242.300629: mr_dereg: mr.id=16 <...>-4351 [001] 79242.300718: mr_dereg: mr.id=15 <...>-4351 [001] 79242.300784: mr_dereg: mr.id=14 <...>-4351 [001] 79242.300879: mr_dereg: mr.id=13 <...>-4351 [001] 79242.300945: mr_dereg: mr.id=12 <...>-4351 [001] 79242.301012: mr_dereg: mr.id=11 Some features of the output: - The lifetime and owner PD of each MR is clearly visible. - The type of MR is captured, as is the SGE array size. - Failing MR allocation can be recorded. Link: https://lore.kernel.org/r/20191218201820.30584.34636.stgit@manet.1015granger.net Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to '')
-rw-r--r--include/trace/events/rdma_core.h123
1 files changed, 123 insertions, 0 deletions
diff --git a/include/trace/events/rdma_core.h b/include/trace/events/rdma_core.h
index 08f481554e7f..17642aa54437 100644
--- 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>
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