Commit c6ad9482 authored by Mike Marciniszyn's avatar Mike Marciniszyn Committed by Doug Ledford
Browse files

IB/rdmavt: Add tracing for cq entry and poll 



The following fields are defined for filtering and triggering:
- wr_id
- status
- opcode
- qpn
- length
- idx

Reviewed-by: default avatarDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: default avatarMike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: default avatarDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 2a1b7c8b

drivers/infiniband/sw/rdmavt/cq.c

+3 −0
Original line number Diff line number Diff line
@@ -50,6 +50,7 @@ 
#include <linux/kthread.h>

#include "cq.h"

#include "vt.h"

#include "trace.h"



/**

 * rvt_cq_enter - add a new entry to the completion queue
@@ -93,6 +94,7 @@ void rvt_cq_enter(struct rvt_cq *cq, struct ib_wc *entry, bool solicited) 
		}

		return;

	}

	trace_rvt_cq_enter(cq, entry, head);

	if (cq->ip) {

		wc->uqueue[head].wr_id = entry->wr_id;

		wc->uqueue[head].status = entry->status;
@@ -482,6 +484,7 @@ int rvt_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry) 
		if (tail == wc->head)

			break;

		/* The kernel doesn't need a RMB since it has the lock. */

		trace_rvt_cq_poll(cq, &wc->kqueue[tail], npolled);

		*entry = wc->kqueue[tail];

		if (tail >= cq->ibcq.cqe)

			tail = 0;

drivers/infiniband/sw/rdmavt/trace.h

+1 −0
Original line number Diff line number Diff line
@@ -52,3 +52,4 @@ 
#include "trace_qp.h"

#include "trace_tx.h"

#include "trace_mr.h"

#include "trace_cq.h"

drivers/infiniband/sw/rdmavt/trace_cq.h

0 → 100644
+127 −0
Original line number Diff line number Diff line 
/*

 * Copyright(c) 2016 Intel Corporation.

 *

 * This file is provided under a dual BSD/GPLv2 license.  When using or

 * redistributing this file, you may do so under either license.

 *

 * GPL LICENSE SUMMARY

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of version 2 of the GNU General Public License as

 * published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 *

 * BSD LICENSE

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 *  - Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 *  - Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in

 *    the documentation and/or other materials provided with the

 *    distribution.

 *  - Neither the name of Intel Corporation nor the names of its

 *    contributors may be used to endorse or promote products derived

 *    from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 *

 */

#if !defined(__RVT_TRACE_CQ_H) || defined(TRACE_HEADER_MULTI_READ)

#define __RVT_TRACE_CQ_H



#include <linux/tracepoint.h>

#include <linux/trace_seq.h>



#include <rdma/ib_verbs.h>

#include <rdma/rdmavt_cq.h>



#undef TRACE_SYSTEM

#define TRACE_SYSTEM rvt_cq



#define wc_opcode_name(opcode) { IB_WC_##opcode, #opcode  }

#define show_wc_opcode(opcode)                                \

__print_symbolic(opcode,                                      \

	wc_opcode_name(SEND),                                 \

	wc_opcode_name(RDMA_WRITE),                           \

	wc_opcode_name(RDMA_READ),                            \

	wc_opcode_name(COMP_SWAP),                            \

	wc_opcode_name(FETCH_ADD),                            \

	wc_opcode_name(LSO),                                  \

	wc_opcode_name(LOCAL_INV),                            \

	wc_opcode_name(REG_MR),                               \

	wc_opcode_name(MASKED_COMP_SWAP),                     \

	wc_opcode_name(RECV),                                 \

	wc_opcode_name(RECV_RDMA_WITH_IMM))



#define CQ_PRN \

"[%s] idx %u wr_id %llx status %u opcode %u,%s length %u qpn %x"



DECLARE_EVENT_CLASS(

	rvt_cq_entry_template,

	TP_PROTO(struct rvt_cq *cq, struct ib_wc *wc, u32 idx),

	TP_ARGS(cq, wc, idx),

	TP_STRUCT__entry(

		RDI_DEV_ENTRY(cq->rdi)

		__field(u64, wr_id)

		__field(u32, status)

		__field(u32, opcode)

		__field(u32, qpn)

		__field(u32, length)

		__field(u32, idx)

	),

	TP_fast_assign(

		RDI_DEV_ASSIGN(cq->rdi)

		__entry->wr_id = wc->wr_id;

		__entry->status = wc->status;

		__entry->opcode = wc->opcode;

		__entry->length = wc->byte_len;

		__entry->qpn = wc->qp->qp_num;

		__entry->idx = idx;

	),

	TP_printk(

		CQ_PRN,

		__get_str(dev),

		__entry->idx,

		__entry->wr_id,

		__entry->status,

		__entry->opcode, show_wc_opcode(__entry->opcode),

		__entry->length,

		__entry->qpn

	)

);



DEFINE_EVENT(

	rvt_cq_entry_template, rvt_cq_enter,

	TP_PROTO(struct rvt_cq *cq, struct ib_wc *wc, u32 idx),

	TP_ARGS(cq, wc, idx));



DEFINE_EVENT(

	rvt_cq_entry_template, rvt_cq_poll,

	TP_PROTO(struct rvt_cq *cq, struct ib_wc *wc, u32 idx),

	TP_ARGS(cq, wc, idx));



#endif /* __RVT_TRACE_CQ_H */



#undef TRACE_INCLUDE_PATH

#undef TRACE_INCLUDE_FILE

#define TRACE_INCLUDE_PATH .

#define TRACE_INCLUDE_FILE trace_cq

#include <trace/define_trace.h>