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1/*
2 * Copyright (c) 2006 Oracle. All rights reserved.
3 *
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:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
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.
22 *
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
30 * SOFTWARE.
31 *
32 */
33#include <linux/percpu.h>
34#include <linux/seq_file.h>
35#include <linux/proc_fs.h>
36
37#include "rds.h"
38#include "ib.h"
39
40DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_ib_statistics, rds_ib_stats);
41
42static const char *const rds_ib_stat_names[] = {
43 "ib_connect_raced",
44 "ib_listen_closed_stale",
45 "s_ib_evt_handler_call",
46 "ib_tasklet_call",
47 "ib_tx_cq_event",
48 "ib_tx_ring_full",
49 "ib_tx_throttle",
50 "ib_tx_sg_mapping_failure",
51 "ib_tx_stalled",
52 "ib_tx_credit_updates",
53 "ib_rx_cq_event",
54 "ib_rx_ring_empty",
55 "ib_rx_refill_from_cq",
56 "ib_rx_refill_from_thread",
57 "ib_rx_alloc_limit",
58 "ib_rx_credit_updates",
59 "ib_ack_sent",
60 "ib_ack_send_failure",
61 "ib_ack_send_delayed",
62 "ib_ack_send_piggybacked",
63 "ib_ack_received",
64 "ib_rdma_mr_8k_alloc",
65 "ib_rdma_mr_8k_free",
66 "ib_rdma_mr_8k_used",
67 "ib_rdma_mr_8k_pool_flush",
68 "ib_rdma_mr_8k_pool_wait",
69 "ib_rdma_mr_8k_pool_depleted",
70 "ib_rdma_mr_1m_alloc",
71 "ib_rdma_mr_1m_free",
72 "ib_rdma_mr_1m_used",
73 "ib_rdma_mr_1m_pool_flush",
74 "ib_rdma_mr_1m_pool_wait",
75 "ib_rdma_mr_1m_pool_depleted",
76 "ib_rdma_mr_8k_reused",
77 "ib_rdma_mr_1m_reused",
78 "ib_atomic_cswp",
79 "ib_atomic_fadd",
80};
81
82unsigned int rds_ib_stats_info_copy(struct rds_info_iterator *iter,
83 unsigned int avail)
84{
85 struct rds_ib_statistics stats = {0, };
86 uint64_t *src;
87 uint64_t *sum;
88 size_t i;
89 int cpu;
90
91 if (avail < ARRAY_SIZE(rds_ib_stat_names))
92 goto out;
93
94 for_each_online_cpu(cpu) {
95 src = (uint64_t *)&(per_cpu(rds_ib_stats, cpu));
96 sum = (uint64_t *)&stats;
97 for (i = 0; i < sizeof(stats) / sizeof(uint64_t); i++)
98 *(sum++) += *(src++);
99 }
100
101 rds_stats_info_copy(iter, (uint64_t *)&stats, rds_ib_stat_names,
102 ARRAY_SIZE(rds_ib_stat_names));
103out:
104 return ARRAY_SIZE(rds_ib_stat_names);
105}
1/*
2 * Copyright (c) 2006 Oracle. All rights reserved.
3 *
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:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
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.
22 *
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
30 * SOFTWARE.
31 *
32 */
33#include <linux/percpu.h>
34#include <linux/seq_file.h>
35#include <linux/proc_fs.h>
36
37#include "rds.h"
38#include "ib.h"
39
40DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_ib_statistics, rds_ib_stats);
41
42static const char *const rds_ib_stat_names[] = {
43 "ib_connect_raced",
44 "ib_listen_closed_stale",
45 "ib_tx_cq_call",
46 "ib_tx_cq_event",
47 "ib_tx_ring_full",
48 "ib_tx_throttle",
49 "ib_tx_sg_mapping_failure",
50 "ib_tx_stalled",
51 "ib_tx_credit_updates",
52 "ib_rx_cq_call",
53 "ib_rx_cq_event",
54 "ib_rx_ring_empty",
55 "ib_rx_refill_from_cq",
56 "ib_rx_refill_from_thread",
57 "ib_rx_alloc_limit",
58 "ib_rx_credit_updates",
59 "ib_ack_sent",
60 "ib_ack_send_failure",
61 "ib_ack_send_delayed",
62 "ib_ack_send_piggybacked",
63 "ib_ack_received",
64 "ib_rdma_mr_alloc",
65 "ib_rdma_mr_free",
66 "ib_rdma_mr_used",
67 "ib_rdma_mr_pool_flush",
68 "ib_rdma_mr_pool_wait",
69 "ib_rdma_mr_pool_depleted",
70 "ib_atomic_cswp",
71 "ib_atomic_fadd",
72};
73
74unsigned int rds_ib_stats_info_copy(struct rds_info_iterator *iter,
75 unsigned int avail)
76{
77 struct rds_ib_statistics stats = {0, };
78 uint64_t *src;
79 uint64_t *sum;
80 size_t i;
81 int cpu;
82
83 if (avail < ARRAY_SIZE(rds_ib_stat_names))
84 goto out;
85
86 for_each_online_cpu(cpu) {
87 src = (uint64_t *)&(per_cpu(rds_ib_stats, cpu));
88 sum = (uint64_t *)&stats;
89 for (i = 0; i < sizeof(stats) / sizeof(uint64_t); i++)
90 *(sum++) += *(src++);
91 }
92
93 rds_stats_info_copy(iter, (uint64_t *)&stats, rds_ib_stat_names,
94 ARRAY_SIZE(rds_ib_stat_names));
95out:
96 return ARRAY_SIZE(rds_ib_stat_names);
97}