sw/rxe/rxe_hw_counters.c

0001 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
0002 /*
0003  * Copyright (c) 2017 Mellanox Technologies Ltd. All rights reserved.
0004  */
0005
0006 #include "rxe.h"
0007 #include "rxe_hw_counters.h"
0008
0009 static const struct rdma_stat_desc rxe_counter_descs[] = {
0010     [RXE_CNT_SENT_PKTS].name           =  "sent_pkts",
0011     [RXE_CNT_RCVD_PKTS].name           =  "rcvd_pkts",
0012     [RXE_CNT_DUP_REQ].name             =  "duplicate_request",
0013     [RXE_CNT_OUT_OF_SEQ_REQ].name      =  "out_of_seq_request",
0014     [RXE_CNT_RCV_RNR].name             =  "rcvd_rnr_err",
0015     [RXE_CNT_SND_RNR].name             =  "send_rnr_err",
0016     [RXE_CNT_RCV_SEQ_ERR].name         =  "rcvd_seq_err",
0017     [RXE_CNT_COMPLETER_SCHED].name     =  "ack_deferred",
0018     [RXE_CNT_RETRY_EXCEEDED].name      =  "retry_exceeded_err",
0019     [RXE_CNT_RNR_RETRY_EXCEEDED].name  =  "retry_rnr_exceeded_err",
0020     [RXE_CNT_COMP_RETRY].name          =  "completer_retry_err",
0021     [RXE_CNT_SEND_ERR].name            =  "send_err",
0022     [RXE_CNT_LINK_DOWNED].name         =  "link_downed",
0023     [RXE_CNT_RDMA_SEND].name           =  "rdma_sends",
0024     [RXE_CNT_RDMA_RECV].name           =  "rdma_recvs",
0025 };
0026
0027 int rxe_ib_get_hw_stats(struct ib_device *ibdev,
0028             struct rdma_hw_stats *stats,
0029             u32 port, int index)
0030 {
0031     struct rxe_dev *dev = to_rdev(ibdev);
0032     unsigned int cnt;
0033
0034     if (!port || !stats)
0035         return -EINVAL;
0036
0037     for (cnt = 0; cnt < ARRAY_SIZE(rxe_counter_descs); cnt++)
0038         stats->value[cnt] = atomic64_read(&dev->stats_counters[cnt]);
0039
0040     return ARRAY_SIZE(rxe_counter_descs);
0041 }
0042
0043 struct rdma_hw_stats *rxe_ib_alloc_hw_port_stats(struct ib_device *ibdev,
0044                          u32 port_num)
0045 {
0046     BUILD_BUG_ON(ARRAY_SIZE(rxe_counter_descs) != RXE_NUM_OF_COUNTERS);
0047
0048     return rdma_alloc_hw_stats_struct(rxe_counter_descs,
0049                       ARRAY_SIZE(rxe_counter_descs),
0050                       RDMA_HW_STATS_DEFAULT_LIFESPAN);
0051 }