Commit dc0112e6 authored by Chuck Lever's avatar Chuck Lever Committed by Anna Schumaker
Browse files

rpcrdma: Trace connection registration and unregistration 



These new trace points record xarray indices and the time of
endpoint registration and unregistration, to co-ordinate with
device removal events.

Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
Signed-off-by: default avatarAnna Schumaker <Anna.Schumaker@Netapp.com>
parent 6b3b023e

include/trace/events/rpcrdma.h

+36 −0
Original line number Diff line number Diff line
@@ -2277,6 +2277,42 @@ DEFINE_CLIENT_DEVICE_EVENT(rpcrdma_client_remove_one); 
DEFINE_CLIENT_DEVICE_EVENT(rpcrdma_client_wait_on);

DEFINE_CLIENT_DEVICE_EVENT(rpcrdma_client_remove_one_done);



DECLARE_EVENT_CLASS(rpcrdma_client_register_class,

	TP_PROTO(

		const struct ib_device *device,

		const struct rpcrdma_notification *rn

	),



	TP_ARGS(device, rn),



	TP_STRUCT__entry(

		__string(name, device->name)

		__field(void *, callback)

		__field(u32, index)

	),



	TP_fast_assign(

		__assign_str(name);

		__entry->callback = rn->rn_done;

		__entry->index = rn->rn_index;

	),



	TP_printk("device=%s index=%u done callback=%pS\n",

		__get_str(name), __entry->index, __entry->callback

	)

);



#define DEFINE_CLIENT_REGISTER_EVENT(name)				\

	DEFINE_EVENT(rpcrdma_client_register_class, name,		\

	TP_PROTO(							\

		const struct ib_device *device,				\

		const struct rpcrdma_notification *rn			\

	),								\

	TP_ARGS(device, rn))



DEFINE_CLIENT_REGISTER_EVENT(rpcrdma_client_register);

DEFINE_CLIENT_REGISTER_EVENT(rpcrdma_client_unregister);



#endif /* _TRACE_RPCRDMA_H */



#include <trace/define_trace.h>

net/sunrpc/xprtrdma/ib_client.c

+2 −0
Original line number Diff line number Diff line
@@ -66,6 +66,7 @@ int rpcrdma_rn_register(struct ib_device *device, 
		return -ENOMEM;

	kref_get(&rd->rd_kref);

	rn->rn_done = done;

	trace_rpcrdma_client_register(device, rn);

	return 0;

}
@@ -91,6 +92,7 @@ void rpcrdma_rn_unregister(struct ib_device *device, 
	if (!rd)

		return;



	trace_rpcrdma_client_unregister(device, rn);

	xa_erase(&rd->rd_xa, rn->rn_index);

	kref_put(&rd->rd_kref, rpcrdma_rn_release);

}