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(dev: 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(v: &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(descs: rxe_counter_descs,
49 ARRAY_SIZE(rxe_counter_descs),
50 RDMA_HW_STATS_DEFAULT_LIFESPAN);
51}
52

source code of linux/drivers/infiniband/sw/rxe/rxe_hw_counters.c