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 char * const rxe_counter_name[] = {
10	[RXE_CNT_SENT_PKTS]           =  "sent_pkts",
11	[RXE_CNT_RCVD_PKTS]           =  "rcvd_pkts",
12	[RXE_CNT_DUP_REQ]             =  "duplicate_request",
13	[RXE_CNT_OUT_OF_SEQ_REQ]      =  "out_of_seq_request",
14	[RXE_CNT_RCV_RNR]             =  "rcvd_rnr_err",
15	[RXE_CNT_SND_RNR]             =  "send_rnr_err",
16	[RXE_CNT_RCV_SEQ_ERR]         =  "rcvd_seq_err",
17	[RXE_CNT_COMPLETER_SCHED]     =  "ack_deferred",
18	[RXE_CNT_RETRY_EXCEEDED]      =  "retry_exceeded_err",
19	[RXE_CNT_RNR_RETRY_EXCEEDED]  =  "retry_rnr_exceeded_err",
20	[RXE_CNT_COMP_RETRY]          =  "completer_retry_err",
21	[RXE_CNT_SEND_ERR]            =  "send_err",
22	[RXE_CNT_LINK_DOWNED]         =  "link_downed",
23	[RXE_CNT_RDMA_SEND]           =  "rdma_sends",
24	[RXE_CNT_RDMA_RECV]           =  "rdma_recvs",
25};
26
27int rxe_ib_get_hw_stats(struct ib_device *ibdev,
28			struct rdma_hw_stats *stats,
29			u8 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_name); cnt++)
38		stats->value[cnt] = atomic64_read(&dev->stats_counters[cnt]);
39
40	return ARRAY_SIZE(rxe_counter_name);
41}
42
43struct rdma_hw_stats *rxe_ib_alloc_hw_stats(struct ib_device *ibdev,
44					    u8 port_num)
45{
46	BUILD_BUG_ON(ARRAY_SIZE(rxe_counter_name) != RXE_NUM_OF_COUNTERS);
47	/* We support only per port stats */
48	if (!port_num)
49		return NULL;
50
51	return rdma_alloc_hw_stats_struct(rxe_counter_name,
52					  ARRAY_SIZE(rxe_counter_name),
53					  RDMA_HW_STATS_DEFAULT_LIFESPAN);
54}
55