LXR linux/drivers/infiniband/sw/rxe/rxe_hw

   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                        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_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_port_stats(struct ib_device *ibdev,
  44                                                 u32 port_num)
  45{
  46        BUILD_BUG_ON(ARRAY_SIZE(rxe_counter_name) != RXE_NUM_OF_COUNTERS);
  47
  48        return rdma_alloc_hw_stats_struct(rxe_counter_name,
  49                                          ARRAY_SIZE(rxe_counter_name),
  50                                          RDMA_HW_STATS_DEFAULT_LIFESPAN);
  51}
  52