1c4f07c60SJack Wang // SPDX-License-Identifier: GPL-2.0-or-later 2c4f07c60SJack Wang /* 3c4f07c60SJack Wang * RDMA Transport Layer 4c4f07c60SJack Wang * 5c4f07c60SJack Wang * Copyright (c) 2014 - 2018 ProfitBricks GmbH. All rights reserved. 6c4f07c60SJack Wang * Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved. 7c4f07c60SJack Wang * Copyright (c) 2019 - 2020 1&1 IONOS SE. All rights reserved. 8c4f07c60SJack Wang */ 9c4f07c60SJack Wang #undef pr_fmt 10c4f07c60SJack Wang #define pr_fmt(fmt) KBUILD_MODNAME " L" __stringify(__LINE__) ": " fmt 11c4f07c60SJack Wang 12c4f07c60SJack Wang #include "rtrs-srv.h" 13c4f07c60SJack Wang 14c4f07c60SJack Wang int rtrs_srv_reset_rdma_stats(struct rtrs_srv_stats *stats, bool enable) 15c4f07c60SJack Wang { 16c4f07c60SJack Wang if (enable) { 17*f4e13571SSantosh Kumar Pradhan int cpu; 18*f4e13571SSantosh Kumar Pradhan struct rtrs_srv_stats_rdma_stats *r; 19c4f07c60SJack Wang 20*f4e13571SSantosh Kumar Pradhan for_each_possible_cpu(cpu) { 21*f4e13571SSantosh Kumar Pradhan r = per_cpu_ptr(stats->rdma_stats, cpu); 22c4f07c60SJack Wang memset(r, 0, sizeof(*r)); 23*f4e13571SSantosh Kumar Pradhan } 24*f4e13571SSantosh Kumar Pradhan 25c4f07c60SJack Wang return 0; 26c4f07c60SJack Wang } 27c4f07c60SJack Wang 28c4f07c60SJack Wang return -EINVAL; 29c4f07c60SJack Wang } 30c4f07c60SJack Wang 3180ad07f7SMd Haris Iqbal ssize_t rtrs_srv_stats_rdma_to_str(struct rtrs_srv_stats *stats, char *page) 32c4f07c60SJack Wang { 33*f4e13571SSantosh Kumar Pradhan int cpu; 34*f4e13571SSantosh Kumar Pradhan struct rtrs_srv_stats_rdma_stats sum; 35*f4e13571SSantosh Kumar Pradhan struct rtrs_srv_stats_rdma_stats *r; 36c4f07c60SJack Wang 37*f4e13571SSantosh Kumar Pradhan memset(&sum, 0, sizeof(sum)); 38*f4e13571SSantosh Kumar Pradhan 39*f4e13571SSantosh Kumar Pradhan for_each_possible_cpu(cpu) { 40*f4e13571SSantosh Kumar Pradhan r = per_cpu_ptr(stats->rdma_stats, cpu); 41*f4e13571SSantosh Kumar Pradhan 42*f4e13571SSantosh Kumar Pradhan sum.dir[READ].cnt += r->dir[READ].cnt; 43*f4e13571SSantosh Kumar Pradhan sum.dir[READ].size_total += r->dir[READ].size_total; 44*f4e13571SSantosh Kumar Pradhan sum.dir[WRITE].cnt += r->dir[WRITE].cnt; 45*f4e13571SSantosh Kumar Pradhan sum.dir[WRITE].size_total += r->dir[WRITE].size_total; 46*f4e13571SSantosh Kumar Pradhan } 47*f4e13571SSantosh Kumar Pradhan 48*f4e13571SSantosh Kumar Pradhan return sysfs_emit(page, "%llu %llu %llu %llu\n", 49*f4e13571SSantosh Kumar Pradhan sum.dir[READ].cnt, sum.dir[READ].size_total, 50*f4e13571SSantosh Kumar Pradhan sum.dir[WRITE].cnt, sum.dir[WRITE].size_total); 51c4f07c60SJack Wang } 52