sw/rxe/rxe_hw_counters.c

   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
   9 static 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
  27 int 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
  43 struct 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 }