cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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rxe_hw_counters.c (1758B)

      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(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
     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(rxe_counter_descs,
     49					  ARRAY_SIZE(rxe_counter_descs),
     50					  RDMA_HW_STATS_DEFAULT_LIFESPAN);
     51}