1// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
2/*
3 * Copyright (c) 2017 Mellanox Technologies Ltd. All rights reserved.
4 */
5
6#include "rxe.h"
7#include "rxe_hw_counters.h"
8
9static const struct rdma_stat_desc rxe_counter_descs[] = {
10	[RXE_CNT_SENT_PKTS].name           =  "sent_pkts",
11	[RXE_CNT_RCVD_PKTS].name           =  "rcvd_pkts",
12	[RXE_CNT_DUP_REQ].name             =  "duplicate_request",
13	[RXE_CNT_OUT_OF_SEQ_REQ].name      =  "out_of_seq_request",
14	[RXE_CNT_RCV_RNR].name             =  "rcvd_rnr_err",
15	[RXE_CNT_SND_RNR].name             =  "send_rnr_err",
16	[RXE_CNT_RCV_SEQ_ERR].name         =  "rcvd_seq_err",
17	[RXE_CNT_COMPLETER_SCHED].name     =  "ack_deferred",
18	[RXE_CNT_RETRY_EXCEEDED].name      =  "retry_exceeded_err",
19	[RXE_CNT_RNR_RETRY_EXCEEDED].name  =  "retry_rnr_exceeded_err",
20	[RXE_CNT_COMP_RETRY].name          =  "completer_retry_err",
21	[RXE_CNT_SEND_ERR].name            =  "send_err",
22	[RXE_CNT_LINK_DOWNED].name         =  "link_downed",
23	[RXE_CNT_RDMA_SEND].name           =  "rdma_sends",
24	[RXE_CNT_RDMA_RECV].name           =  "rdma_recvs",
25};
26
27int rxe_ib_get_hw_stats(struct ib_device *ibdev,
28			struct rdma_hw_stats *stats,
29			u32 port, int index)
30{
31	struct rxe_dev *dev = to_rdev(ibdev);
32	unsigned int cnt;
33
34	if (!port || !stats)
35		return -EINVAL;
36
37	for (cnt = 0; cnt < ARRAY_SIZE(rxe_counter_descs); cnt++)
38		stats->value[cnt] = atomic64_read(&dev->stats_counters[cnt]);
39
40	return ARRAY_SIZE(rxe_counter_descs);
41}
42
43struct rdma_hw_stats *rxe_ib_alloc_hw_port_stats(struct ib_device *ibdev,
44						 u32 port_num)
45{
46	BUILD_BUG_ON(ARRAY_SIZE(rxe_counter_descs) != RXE_NUM_OF_COUNTERS);
47
48	return rdma_alloc_hw_stats_struct(rxe_counter_descs,
49					  ARRAY_SIZE(rxe_counter_descs),
50					  RDMA_HW_STATS_DEFAULT_LIFESPAN);
51}
52