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 | |
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 | |
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(buf: page, fmt: "%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 | |