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IB/MAD: Add agent trace points 

Trace agent details when agents are [un]registered.  In addition, report
agent details on send/recv.

Reviewed-by: "Ruhl, Michael J" <michael.j.ruhl@intel.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
hifive-unleashed-5.2
Ira Weiny 2019-03-19 14:11:46 -07:00 committed by Jason Gunthorpe
parent 821bf1de45
commit 0e65bae205
2 changed files with 50 additions and 0 deletions
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4
drivers/infiniband/core/mad.c
View File

@ -467,6 +467,7 @@ struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device,
}
spin_unlock_irq(&port_priv->reg_lock);
trace_ib_mad_create_agent(mad_agent_priv);
return &mad_agent_priv->agent;
error6:
spin_unlock_irq(&port_priv->reg_lock);
@ -622,6 +623,7 @@ static void unregister_mad_agent(struct ib_mad_agent_private *mad_agent_priv)
struct ib_mad_port_private *port_priv;
/* Note that we could still be handling received MADs */
trace_ib_mad_unregister_agent(mad_agent_priv);
/*
* Canceling all sends results in dropping received response
@ -2354,6 +2356,7 @@ static void ib_mad_recv_done(struct ib_cq *cq, struct ib_wc *wc)
mad_agent = find_mad_agent(port_priv, (const struct ib_mad_hdr *)recv->mad);
if (mad_agent) {
trace_ib_mad_recv_done_agent(mad_agent);
ib_mad_complete_recv(mad_agent, &recv->header.recv_wc);
/*
* recv is freed up in error cases in ib_mad_complete_recv
@ -2518,6 +2521,7 @@ static void ib_mad_send_done(struct ib_cq *cq, struct ib_wc *wc)
send_queue = mad_list->mad_queue;
qp_info = send_queue->qp_info;
trace_ib_mad_send_done_agent(mad_send_wr->mad_agent_priv);
trace_ib_mad_send_done_handler(mad_send_wr, wc);
retry:

46
include/trace/events/ib_mad.h
View File

@ -248,6 +248,52 @@ TRACE_EVENT(ib_mad_recv_done_handler,
)
);
DECLARE_EVENT_CLASS(ib_mad_agent_template,
TP_PROTO(struct ib_mad_agent_private *agent),
TP_ARGS(agent),
TP_STRUCT__entry(
__field(u32, dev_index)
__field(u32, hi_tid)
__field(u8, port_num)
__field(u8, mgmt_class)
__field(u8, mgmt_class_version)
),
TP_fast_assign(
__entry->dev_index = agent->agent.device->index;
__entry->port_num = agent->agent.port_num;
__entry->hi_tid = agent->agent.hi_tid;
if (agent->reg_req) {
__entry->mgmt_class = agent->reg_req->mgmt_class;
__entry->mgmt_class_version =
agent->reg_req->mgmt_class_version;
} else {
__entry->mgmt_class = 0;
__entry->mgmt_class_version = 0;
}
),
TP_printk("%d:%d mad agent : hi_tid 0x%08x class 0x%02x class_ver 0x%02x",
__entry->dev_index, __entry->port_num,
__entry->hi_tid, __entry->mgmt_class,
__entry->mgmt_class_version
)
);
DEFINE_EVENT(ib_mad_agent_template, ib_mad_recv_done_agent,
TP_PROTO(struct ib_mad_agent_private *agent),
TP_ARGS(agent));
DEFINE_EVENT(ib_mad_agent_template, ib_mad_send_done_agent,
TP_PROTO(struct ib_mad_agent_private *agent),
TP_ARGS(agent));
DEFINE_EVENT(ib_mad_agent_template, ib_mad_create_agent,
TP_PROTO(struct ib_mad_agent_private *agent),
TP_ARGS(agent));
DEFINE_EVENT(ib_mad_agent_template, ib_mad_unregister_agent,
TP_PROTO(struct ib_mad_agent_private *agent),
TP_ARGS(agent));
#endif /* _TRACE_IB_MAD_H */