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authorChuck Lever <chuck.lever@oracle.com>2020-05-19 09:30:32 -0400
committerChuck Lever <chuck.lever@oracle.com>2020-07-13 17:28:24 -0400
commitf7bd657b55e3484cadc37a6439de23d2fd703bd6 (patch)
treea9c235d11e871b7edaa278554730a2d1a2992559 /include/trace/events/rpcrdma.h
parent379c3bc6b4eb989ee37c4ce8ab403719e06fe35f (diff)
downloadlinux-f7bd657b55e3484cadc37a6439de23d2fd703bd6.tar.bz2
svcrdma: Introduce infrastructure to support completion IDs
The goal is to replace CQE kernel memory addresses in completion- related tracepoints. Each completion ID matches an incoming Send or Receive completion to a Completion Queue and to a previous ib_post_*(). The ID can then be displayed in an error message or recorded in a trace record. Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'include/trace/events/rpcrdma.h')
-rw-r--r--include/trace/events/rpcrdma.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/include/trace/events/rpcrdma.h b/include/trace/events/rpcrdma.h
index 0eff80dee066..70ab989aa3b7 100644
--- a/include/trace/events/rpcrdma.h
+++ b/include/trace/events/rpcrdma.h
@@ -11,6 +11,7 @@
#define _TRACE_RPCRDMA_H
#include <linux/scatterlist.h>
+#include <linux/sunrpc/rpc_rdma_cid.h>
#include <linux/tracepoint.h>
#include <trace/events/rdma.h>
@@ -18,6 +19,48 @@
** Event classes
**/
+DECLARE_EVENT_CLASS(rpcrdma_completion_class,
+ TP_PROTO(
+ const struct ib_wc *wc,
+ const struct rpc_rdma_cid *cid
+ ),
+
+ TP_ARGS(wc, cid),
+
+ TP_STRUCT__entry(
+ __field(u32, cq_id)
+ __field(int, completion_id)
+ __field(unsigned long, status)
+ __field(unsigned int, vendor_err)
+ ),
+
+ TP_fast_assign(
+ __entry->cq_id = cid->ci_queue_id;
+ __entry->completion_id = cid->ci_completion_id;
+ __entry->status = wc->status;
+ if (wc->status)
+ __entry->vendor_err = wc->vendor_err;
+ else
+ __entry->vendor_err = 0;
+ ),
+
+ TP_printk("cq.id=%u cid=%d status=%s (%lu/0x%x)",
+ __entry->cq_id, __entry->completion_id,
+ rdma_show_wc_status(__entry->status),
+ __entry->status, __entry->vendor_err
+ )
+);
+
+#define DEFINE_COMPLETION_EVENT(name) \
+ DEFINE_EVENT(rpcrdma_completion_class, name, \
+ TP_PROTO( \
+ const struct ib_wc *wc, \
+ const struct rpc_rdma_cid *cid \
+ ), \
+ TP_ARGS(wc, cid))
+
+DEFINE_COMPLETION_EVENT(dummy);
+
DECLARE_EVENT_CLASS(xprtrdma_reply_event,
TP_PROTO(
const struct rpcrdma_rep *rep