xprtrdma: Add trace points in the client-side backchannel code paths (fc1eb807) · Commits · e / devices / android_kernel_xiaomi_nabu

include/trace/events/rpcrdma.h

+68 −0

Original line number	Diff line number	Diff line
		@@ -267,6 +267,39 @@ DECLARE_EVENT_CLASS(xprtrdma_mr,
		), \
		TP_ARGS(mr))

		DECLARE_EVENT_CLASS(xprtrdma_cb_event,
		TP_PROTO(
		const struct rpc_rqst *rqst
		),

		TP_ARGS(rqst),

		TP_STRUCT__entry(
		__field(const void *, rqst)
		__field(const void *, rep)
		__field(const void *, req)
		__field(u32, xid)
		),

		TP_fast_assign(
		__entry->rqst = rqst;
		__entry->req = rpcr_to_rdmar(rqst);
		__entry->rep = rpcr_to_rdmar(rqst)->rl_reply;
		__entry->xid = be32_to_cpu(rqst->rq_xid);
		),

		TP_printk("xid=0x%08x, rqst=%p req=%p rep=%p",
		__entry->xid, __entry->rqst, __entry->req, __entry->rep
		)
		);

		#define DEFINE_CB_EVENT(name) \
		DEFINE_EVENT(xprtrdma_cb_event, name, \
		TP_PROTO( \
		const struct rpc_rqst *rqst \
		), \
		TP_ARGS(rqst))

		/**
		** Connection events
		**/
		@@ -719,6 +752,41 @@ TRACE_EVENT(xprtrdma_decode_seg,
		)
		);

		/**
		** Callback events
		**/

		TRACE_EVENT(xprtrdma_cb_setup,
		TP_PROTO(
		const struct rpcrdma_xprt *r_xprt,
		unsigned int reqs
		),

		TP_ARGS(r_xprt, reqs),

		TP_STRUCT__entry(
		__field(const void *, r_xprt)
		__field(unsigned int, reqs)
		__string(addr, rpcrdma_addrstr(r_xprt))
		__string(port, rpcrdma_portstr(r_xprt))
		),

		TP_fast_assign(
		__entry->r_xprt = r_xprt;
		__entry->reqs = reqs;
		__assign_str(addr, rpcrdma_addrstr(r_xprt));
		__assign_str(port, rpcrdma_portstr(r_xprt));
		),

		TP_printk("peer=[%s]:%s r_xprt=%p: %u reqs",
		__get_str(addr), __get_str(port),
		__entry->r_xprt, __entry->reqs
		)
		);

		DEFINE_CB_EVENT(xprtrdma_cb_call);
		DEFINE_CB_EVENT(xprtrdma_cb_reply);

		#endif /* _TRACE_RPCRDMA_H */

		#include <trace/define_trace.h>

+4 −4

Original line number	Diff line number	Diff line
		@@ -140,7 +140,7 @@ int xprt_rdma_bc_setup(struct rpc_xprt *xprt, unsigned int reqs)

		buffer->rb_bc_srv_max_requests = reqs;
		request_module("svcrdma");

		trace_xprtrdma_cb_setup(r_xprt, reqs);
		return 0;

		out_free:
		@@ -212,6 +212,8 @@ static int rpcrdma_bc_marshal_reply(struct rpc_rqst *rqst)
		if (rpcrdma_prepare_send_sges(r_xprt, req, RPCRDMA_HDRLEN_MIN,
		&rqst->rq_snd_buf, rpcrdma_noch))
		return -EIO;

		trace_xprtrdma_cb_reply(rqst);
		return 0;
		}

		@@ -331,7 +333,6 @@ void rpcrdma_bc_receive_call(struct rpcrdma_xprt *r_xprt,
		struct rpc_rqst, rq_bc_pa_list);
		list_del(&rqst->rq_bc_pa_list);
		spin_unlock(&xprt->bc_pa_lock);
		dprintk("RPC: %s: using rqst %p\n", __func__, rqst);

		/* Prepare rqst */
		rqst->rq_reply_bytes_recvd = 0;
		@@ -352,9 +353,8 @@ void rpcrdma_bc_receive_call(struct rpcrdma_xprt *r_xprt,
		* the Upper Layer is done decoding it.
		*/
		req = rpcr_to_rdmar(rqst);
		dprintk("RPC: %s: attaching rep %p to req %p\n",
		__func__, rep, req);
		req->rl_reply = rep;
		trace_xprtrdma_cb_call(rqst);

		/* Queue rqst for ULP's callback service */
		bc_serv = xprt->bc_serv;

+1 −1

Original line number	Diff line number	Diff line
		@@ -365,7 +365,7 @@ rpcrdma_set_xprtdata(struct rpc_rqst rqst, struct rpcrdma_req req)
		}

		static inline struct rpcrdma_req *
		rpcr_to_rdmar(struct rpc_rqst *rqst)
		rpcr_to_rdmar(const struct rpc_rqst *rqst)
		{
		return rqst->rq_xprtdata;
		}