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rpcrdma: Trace connection registration and unregistration

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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: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever 2024-08-12 11:47:59 -04:00 committed by Anna Schumaker
parent 6b3b023e2d
commit dc0112e6d8
2 changed files with 38 additions and 0 deletions
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36
include/trace/events/rpcrdma.h
View File

@ -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>

2
net/sunrpc/xprtrdma/ib_client.c
View File

@ -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);
}