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 		struct rtrs_srv_stats_rdma_stats *r = &stats->rdma_stats;
18 
19 		memset(r, 0, sizeof(*r));
20 		return 0;
21 	}
22 
23 	return -EINVAL;
24 }
25 
26 ssize_t rtrs_srv_stats_rdma_to_str(struct rtrs_srv_stats *stats,
27 				    char *page, size_t len)
28 {
29 	struct rtrs_srv_stats_rdma_stats *r = &stats->rdma_stats;
30 
31 	return sysfs_emit(page, "%lld %lld %lld %lldn %u\n",
32 			  (s64)atomic64_read(&r->dir[READ].cnt),
33 			  (s64)atomic64_read(&r->dir[READ].size_total),
34 			  (s64)atomic64_read(&r->dir[WRITE].cnt),
35 			  (s64)atomic64_read(&r->dir[WRITE].size_total), 0);
36 }
37