2
* Copyright (c) 2006 Oracle. All rights reserved.
4
* This software is available to you under a choice of one of two
5
* licenses. You may choose to be licensed under the terms of the GNU
6
* General Public License (GPL) Version 2, available from the file
7
* COPYING in the main directory of this source tree, or the
8
* OpenIB.org BSD license below:
10
* Redistribution and use in source and binary forms, with or
11
* without modification, are permitted provided that the following
14
* - Redistributions of source code must retain the above
15
* copyright notice, this list of conditions and the following
18
* - Redistributions in binary form must reproduce the above
19
* copyright notice, this list of conditions and the following
20
* disclaimer in the documentation and/or other materials
21
* provided with the distribution.
23
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33
#include <linux/percpu.h>
34
#include <linux/seq_file.h>
35
#include <linux/proc_fs.h>
40
DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_iw_statistics, rds_iw_stats);
42
static const char *const rds_iw_stat_names[] = {
44
"iw_listen_closed_stale",
49
"iw_tx_sg_mapping_failure",
51
"iw_tx_credit_updates",
55
"iw_rx_refill_from_cq",
56
"iw_rx_refill_from_thread",
58
"iw_rx_credit_updates",
60
"iw_ack_send_failure",
61
"iw_ack_send_delayed",
62
"iw_ack_send_piggybacked",
67
"iw_rdma_mr_pool_flush",
68
"iw_rdma_mr_pool_wait",
69
"iw_rdma_mr_pool_depleted",
72
unsigned int rds_iw_stats_info_copy(struct rds_info_iterator *iter,
75
struct rds_iw_statistics stats = {0, };
81
if (avail < ARRAY_SIZE(rds_iw_stat_names))
84
for_each_online_cpu(cpu) {
85
src = (uint64_t *)&(per_cpu(rds_iw_stats, cpu));
86
sum = (uint64_t *)&stats;
87
for (i = 0; i < sizeof(stats) / sizeof(uint64_t); i++)
91
rds_stats_info_copy(iter, (uint64_t *)&stats, rds_iw_stat_names,
92
ARRAY_SIZE(rds_iw_stat_names));
94
return ARRAY_SIZE(rds_iw_stat_names);