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author | Chuck Lever <chuck.lever@oracle.com> | 2017-12-20 16:31:37 -0500 |
---|---|---|
committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2018-01-23 09:44:37 -0500 |
commit | fc1eb8076fb0eb0641566b24007a40a7d4ae0116 (patch) | |
tree | 5d0034b3f378b80c3fec49e3ee9902de0a962b1b | |
parent | b4744e00a39e6213d84a83a86e6d304886316f5f (diff) | |
download | linux-fc1eb8076fb0eb0641566b24007a40a7d4ae0116.tar.gz linux-fc1eb8076fb0eb0641566b24007a40a7d4ae0116.tar.bz2 linux-fc1eb8076fb0eb0641566b24007a40a7d4ae0116.zip |
xprtrdma: Add trace points in the client-side backchannel code paths
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
-rw-r--r-- | include/trace/events/rpcrdma.h | 68 | ||||
-rw-r--r-- | net/sunrpc/xprtrdma/backchannel.c | 8 | ||||
-rw-r--r-- | net/sunrpc/xprtrdma/xprt_rdma.h | 2 |
3 files changed, 73 insertions, 5 deletions
diff --git a/include/trace/events/rpcrdma.h b/include/trace/events/rpcrdma.h index 023443d5a0bf..95c2c0bffb65 100644 --- a/include/trace/events/rpcrdma.h +++ b/include/trace/events/rpcrdma.h @@ -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> diff --git a/net/sunrpc/xprtrdma/backchannel.c b/net/sunrpc/xprtrdma/backchannel.c index 3c7998a72191..ca0c5d3d493e 100644 --- a/net/sunrpc/xprtrdma/backchannel.c +++ b/net/sunrpc/xprtrdma/backchannel.c @@ -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; diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h index a1ca1b638123..69883a960a3f 100644 --- a/net/sunrpc/xprtrdma/xprt_rdma.h +++ b/net/sunrpc/xprtrdma/xprt_rdma.h @@ -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; } |