linux_dsm_epyc7002/drivers/infiniband/sw/rxe/rxe_hw_counters.c
Yonatan Cohen 0b1e5b99a4 IB/rxe: Add port protocol stats
Expose new counters using the get_hw_stats callback.
We expose the following counters:

+---------------------+----------------------------------------+
|      Name           |           Description                  |
|---------------------+----------------------------------------|
|sent_pkts            | number of sent pkts                    |
|---------------------+----------------------------------------|
|rcvd_pkts            | number of received packets             |
|---------------------+----------------------------------------|
|out_of_sequence      | number of errors due to packet         |
|                     | transport sequence number              |
|---------------------+----------------------------------------|
|duplicate_request    | number of received duplicated packets. |
|                     | A request that previously executed is  |
|                     | named duplicated.                      |
|---------------------+----------------------------------------|
|rcvd_rnr_err         | number of received RNR by completer    |
|---------------------+----------------------------------------|
|send_rnr_err         | number of sent RNR by responder        |
|---------------------+----------------------------------------|
|rcvd_seq_err         | number of out of sequence packets      |
|                     | received                               |
|---------------------+----------------------------------------|
|ack_deffered         | number of deferred handling of ack     |
|                     | packets.                               |
|---------------------+----------------------------------------|
|retry_exceeded_err   | number of times retry exceeded         |
|---------------------+----------------------------------------|
|completer_retry_err  | number of times completer decided to   |
|                     | retry                                  |
|---------------------+----------------------------------------|
|send_err             | number of failed send packet           |
+---------------------+----------------------------------------+

Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com>
Reviewed-by: Moni Shoua <monis@mellanox.com>
Reviewed-by: Andrew Boyer <andrew.boyer@dell.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-21 10:43:28 -04:00

79 lines
2.8 KiB
C

/*
* Copyright (c) 2017 Mellanox Technologies Ltd. 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
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* 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.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "rxe.h"
#include "rxe_hw_counters.h"
const char * const rxe_counter_name[] = {
[RXE_CNT_SENT_PKTS] = "sent_pkts",
[RXE_CNT_RCVD_PKTS] = "rcvd_pkts",
[RXE_CNT_DUP_REQ] = "duplicate_request",
[RXE_CNT_OUT_OF_SEQ_REQ] = "out_of_sequence",
[RXE_CNT_RCV_RNR] = "rcvd_rnr_err",
[RXE_CNT_SND_RNR] = "send_rnr_err",
[RXE_CNT_RCV_SEQ_ERR] = "rcvd_seq_err",
[RXE_CNT_COMPLETER_SCHED] = "ack_deffered",
[RXE_CNT_RETRY_EXCEEDED] = "retry_exceeded_err",
[RXE_CNT_RNR_RETRY_EXCEEDED] = "retry_rnr_exceeded_err",
[RXE_CNT_COMP_RETRY] = "completer_retry_err",
[RXE_CNT_SEND_ERR] = "send_err",
};
int rxe_ib_get_hw_stats(struct ib_device *ibdev,
struct rdma_hw_stats *stats,
u8 port, int index)
{
struct rxe_dev *dev = to_rdev(ibdev);
unsigned int cnt;
if (!port || !stats)
return -EINVAL;
for (cnt = 0; cnt < ARRAY_SIZE(rxe_counter_name); cnt++)
stats->value[cnt] = dev->stats_counters[cnt];
return ARRAY_SIZE(rxe_counter_name);
}
struct rdma_hw_stats *rxe_ib_alloc_hw_stats(struct ib_device *ibdev,
u8 port_num)
{
BUILD_BUG_ON(ARRAY_SIZE(rxe_counter_name) != RXE_NUM_OF_COUNTERS);
/* We support only per port stats */
if (!port_num)
return NULL;
return rdma_alloc_hw_stats_struct(rxe_counter_name,
ARRAY_SIZE(rxe_counter_name),
RDMA_HW_STATS_DEFAULT_LIFESPAN);
}