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| author |   Ira Weiny <ira.weiny@intel.com> | 2019-03-19 14:11:44 -0700 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2019-03-27 15:52:00 -0300 |
| commit | 4d60cad5db7fb450e64532afbbaba85af235fa5d (patch) | |
| tree | b79a2950b0e02408e673500456cdcbced57ccac5 /drivers/infiniband/core/mad.c | |
| parent | iw_cxgb4: Update Maintainer details (diff) | |
| download | linux-dev-4d60cad5db7fb450e64532afbbaba85af235fa5d.tar.xz linux-dev-4d60cad5db7fb450e64532afbbaba85af235fa5d.zip | |
IB/MAD: Add send path trace points
Use the standard Linux trace mechanism to trace MADs being sent. 4 trace
points are added, when the MAD is posted to the qp, when the MAD is
completed, if a MAD is resent, and when the MAD completes in error.
Reviewed-by: "Ruhl, Michael J" <michael.j.ruhl@intel.com>
Suggested-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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>
Diffstat (limited to 'drivers/infiniband/core/mad.c')
| -rw-r--r-- | drivers/infiniband/core/mad.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index 96571fa3abd8..2acb44bc5ade 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -3,7 +3,7 @@ * Copyright (c) 2005 Intel Corporation. All rights reserved. * Copyright (c) 2005 Mellanox Technologies Ltd. All rights reserved. * Copyright (c) 2009 HNR Consulting. All rights reserved. - * Copyright (c) 2014 Intel Corporation. All rights reserved. + * Copyright (c) 2014,2018 Intel Corporation. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU @@ -51,6 +51,32 @@ #include "opa_smi.h" #include "agent.h" +#define CREATE_TRACE_POINTS +#include <trace/events/ib_mad.h> + +#ifdef CONFIG_TRACEPOINTS +static void create_mad_addr_info(struct ib_mad_send_wr_private *mad_send_wr, + struct ib_mad_qp_info *qp_info, + struct trace_event_raw_ib_mad_send_template *entry) +{ + u16 pkey; + struct ib_device *dev = qp_info->port_priv->device; + u8 pnum = qp_info->port_priv->port_num; + struct ib_ud_wr *wr = &mad_send_wr->send_wr; + struct rdma_ah_attr attr = {}; + + rdma_query_ah(wr->ah, &attr); + + /* These are common */ + entry->sl = attr.sl; + ib_query_pkey(dev, pnum, wr->pkey_index, &pkey); + entry->pkey = pkey; + entry->rqpn = wr->remote_qpn; + entry->rqkey = wr->remote_qkey; + entry->dlid = rdma_ah_get_dlid(&attr); +} +#endif + static int mad_sendq_size = IB_MAD_QP_SEND_SIZE; static int mad_recvq_size = IB_MAD_QP_RECV_SIZE; @@ -1215,6 +1241,7 @@ int ib_send_mad(struct ib_mad_send_wr_private *mad_send_wr) spin_lock_irqsave(&qp_info->send_queue.lock, flags); if (qp_info->send_queue.count < qp_info->send_queue.max_active) { + trace_ib_mad_ib_send_mad(mad_send_wr, qp_info); ret = ib_post_send(mad_agent->qp, &mad_send_wr->send_wr.wr, NULL); list = &qp_info->send_queue.list; @@ -2488,6 +2515,8 @@ 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_handler(mad_send_wr, wc); + retry: ib_dma_unmap_single(mad_send_wr->send_buf.mad_agent->device, mad_send_wr->header_mapping, @@ -2519,6 +2548,7 @@ retry: ib_mad_complete_send_wr(mad_send_wr, &mad_send_wc); if (queued_send_wr) { + trace_ib_mad_send_done_resend(queued_send_wr, qp_info); ret = ib_post_send(qp_info->qp, &queued_send_wr->send_wr.wr, NULL); if (ret) { @@ -2566,6 +2596,7 @@ static bool ib_mad_send_error(struct ib_mad_port_private *port_priv, if (mad_send_wr->retry) { /* Repost send */ mad_send_wr->retry = 0; + trace_ib_mad_error_handler(mad_send_wr, qp_info); ret = ib_post_send(qp_info->qp, &mad_send_wr->send_wr.wr, NULL); if (!ret) |