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RDMA/rtrs: server: statistics functions 

This introduces set of functions used on server side to account statistics
of RDMA data sent/received.

Link: https://lore.kernel.org/r/20200511135131.27580-12-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Jack Wang 2020-05-11 15:51:17 +02:00 committed by Jason Gunthorpe
parent 9cb8374804
commit c4f07c60bb
1 changed files with 38 additions and 0 deletions
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38
drivers/infiniband/ulp/rtrs/rtrs-srv-stats.c Normal file
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* RDMA Transport Layer
*
* Copyright (c) 2014 - 2018 ProfitBricks GmbH. All rights reserved.
* Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved.
* Copyright (c) 2019 - 2020 1&1 IONOS SE. All rights reserved.
*/
#undef pr_fmt
#define pr_fmt(fmt) KBUILD_MODNAME " L" __stringify(__LINE__) ": " fmt
#include "rtrs-srv.h"
int rtrs_srv_reset_rdma_stats(struct rtrs_srv_stats *stats, bool enable)
{
if (enable) {
struct rtrs_srv_stats_rdma_stats *r = &stats->rdma_stats;
memset(r, 0, sizeof(*r));
return 0;
}
return -EINVAL;
}
ssize_t rtrs_srv_stats_rdma_to_str(struct rtrs_srv_stats *stats,
char *page, size_t len)
{
struct rtrs_srv_stats_rdma_stats *r = &stats->rdma_stats;
struct rtrs_srv_sess *sess = stats->sess;
return scnprintf(page, len, "%lld %lld %lld %lld %u\n",
(s64)atomic64_read(&r->dir[READ].cnt),
(s64)atomic64_read(&r->dir[READ].size_total),
(s64)atomic64_read(&r->dir[WRITE].cnt),
(s64)atomic64_read(&r->dir[WRITE].size_total),
atomic_read(&sess->ids_inflight));
}