1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * RDMA Transport Layer
4 *
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_fmt
10 #define pr_fmt(fmt) KBUILD_MODNAME " L" __stringify(__LINE__) ": " fmt
11
12 #include "rtrs-srv.h"
13
rtrs_srv_reset_rdma_stats(struct rtrs_srv_stats * stats,bool enable)14 int 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
rtrs_srv_stats_rdma_to_str(struct rtrs_srv_stats * stats,char * page)31 ssize_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