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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * RDMA Transport Layer4 *5 * Copyright (c) 2014 - 2018 ProfitBricks GmbH. All rights reserved.6 * Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved.7 * Copyright (c) 2019 - 2020 1&1 IONOS SE. All rights reserved.8 */9#undef pr_fmt10#define pr_fmt(fmt) KBUILD_MODNAME " L" __stringify(__LINE__) ": " fmt11 12#include "rtrs-srv.h"13 14int rtrs_srv_reset_rdma_stats(struct rtrs_srv_stats *stats, bool enable)15{16 if (enable) {17 int cpu;18 struct rtrs_srv_stats_rdma_stats *r;19 20 for_each_possible_cpu(cpu) {21 r = per_cpu_ptr(stats->rdma_stats, cpu);22 memset(r, 0, sizeof(*r));23 }24 25 return 0;26 }27 28 return -EINVAL;29}30 31ssize_t rtrs_srv_stats_rdma_to_str(struct rtrs_srv_stats *stats, char *page)32{33 int cpu;34 struct rtrs_srv_stats_rdma_stats sum;35 struct rtrs_srv_stats_rdma_stats *r;36 37 memset(&sum, 0, sizeof(sum));38 39 for_each_possible_cpu(cpu) {40 r = per_cpu_ptr(stats->rdma_stats, cpu);41 42 sum.dir[READ].cnt += r->dir[READ].cnt;43 sum.dir[READ].size_total += r->dir[READ].size_total;44 sum.dir[WRITE].cnt += r->dir[WRITE].cnt;45 sum.dir[WRITE].size_total += r->dir[WRITE].size_total;46 }47 48 return sysfs_emit(page, "%llu %llu %llu %llu\n",49 sum.dir[READ].cnt, sum.dir[READ].size_total,50 sum.dir[WRITE].cnt, sum.dir[WRITE].size_total);51}52