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xprtrdma: Add trace points in RPC Call transmit paths

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Signed-off-by: Chuck Lever <[email protected]>
Signed-off-by: Anna Schumaker <[email protected]>
This commit is contained in:
Chuck Lever 2017-12-20 16:30:40 -05:00 • committed by Anna Schumaker
commit ab03eff58e
3 changed files with 129 additions and 15 deletions
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8
net/sunrpc/xprtrdma/rpc_rdma.c
View file

@ -524,9 +524,6 @@ rpcrdma_unmap_sendctx(struct rpcrdma_sendctx *sc)
struct ib_sge *sge;
unsigned int count;
dprintk("RPC: %s: unmapping %u sges for sc=%p\n",
__func__, sc->sc_unmap_count, sc);
/* The first two SGEs contain the transport header and
* the inline buffer. These are always left mapped so
* they can be cheaply re-used.
@ -874,10 +871,7 @@ rpcrdma_marshal_req(struct rpcrdma_xprt *r_xprt, struct rpc_rqst *rqst)
if (ret)
goto out_err;
dprintk("RPC: %5u %s: %s/%s: hdrlen %u rpclen\n",
rqst->rq_task->tk_pid, __func__,
transfertypes[rtype], transfertypes[wtype],
xdr_stream_pos(xdr));
trace_xprtrdma_marshal(rqst, xdr_stream_pos(xdr), rtype, wtype);
ret = rpcrdma_prepare_send_sges(r_xprt, req, xdr_stream_pos(xdr),
&rqst->rq_snd_buf, rtype);

16
net/sunrpc/xprtrdma/verbs.c
View file

@ -133,6 +133,7 @@ rpcrdma_wc_send(struct ib_cq *cq, struct ib_wc *wc)
container_of(cqe, struct rpcrdma_sendctx, sc_cqe);
/* WARNING: Only wr_cqe and status are reliable at this point */
trace_xprtrdma_wc_send(sc, wc);
if (wc->status != IB_WC_SUCCESS && wc->status != IB_WC_WR_FLUSH_ERR)
pr_err("rpcrdma: Send: %s (%u/0x%x)\n",
ib_wc_status_msg(wc->status),
@ -1549,9 +1550,6 @@ rpcrdma_ep_post(struct rpcrdma_ia *ia,
req->rl_reply = NULL;
}
dprintk("RPC: %s: posting %d s/g entries\n",
__func__, send_wr->num_sge);
if (!ep->rep_send_count ||
test_bit(RPCRDMA_REQ_F_TX_RESOURCES, &req->rl_flags)) {
send_wr->send_flags |= IB_SEND_SIGNALED;
@ -1560,14 +1558,12 @@ rpcrdma_ep_post(struct rpcrdma_ia *ia,
send_wr->send_flags &= ~IB_SEND_SIGNALED;
--ep->rep_send_count;
}
rc = ib_post_send(ia->ri_id->qp, send_wr, &send_wr_fail);
if (rc)
goto out_postsend_err;
return 0;
out_postsend_err:
pr_err("rpcrdma: RDMA Send ib_post_send returned %i\n", rc);
return -ENOTCONN;
rc = ib_post_send(ia->ri_id->qp, send_wr, &send_wr_fail);
trace_xprtrdma_post_send(req, rc);
if (rc)
return -ENOTCONN;
return 0;
}
int