Enable humans to monitor Receive posting behavior.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
include/trace/events/rpcrdma.h | 33 +++++++++++++++++++++++++++++++++
net/sunrpc/xprtrdma/verbs.c | 1 +
2 files changed, 34 insertions(+)
diff --git a/include/trace/events/rpcrdma.h b/include/trace/events/rpcrdma.h
index 91c89eb..ca59cf5 100644
--- a/include/trace/events/rpcrdma.h
+++ b/include/trace/events/rpcrdma.h
@@ -549,6 +549,39 @@
)
);
+TRACE_EVENT(xprtrdma_post_recvs,
+ TP_PROTO(
+ const struct rpcrdma_xprt *r_xprt,
+ unsigned int count,
+ int status
+ ),
+
+ TP_ARGS(r_xprt, count, status),
+
+ TP_STRUCT__entry(
+ __field(const void *, r_xprt)
+ __field(unsigned int, count)
+ __field(int, status)
+ __field(int, posted)
+ __string(addr, rpcrdma_addrstr(r_xprt))
+ __string(port, rpcrdma_portstr(r_xprt))
+ ),
+
+ TP_fast_assign(
+ __entry->r_xprt = r_xprt;
+ __entry->count = count;
+ __entry->status = status;
+ __entry->posted = r_xprt->rx_buf.rb_posted_receives;
+ __assign_str(addr, rpcrdma_addrstr(r_xprt));
+ __assign_str(port, rpcrdma_portstr(r_xprt));
+ ),
+
+ TP_printk("peer=[%s]:%s r_xprt=%p: %u new recvs, %d active (rc %d)",
+ __get_str(addr), __get_str(port), __entry->r_xprt,
+ __entry->count, __entry->posted, __entry->status
+ )
+);
+
/**
** Completion events
**/
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 201b4ad..fe518b3 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -1603,4 +1603,5 @@ struct rpcrdma_regbuf *
}
}
buf->rb_posted_receives += count;
+ trace_xprtrdma_post_recvs(r_xprt, count, rc);
}
--
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