1 /*
2 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
3 */
4
5 /*
6 * This file contains code imported from the OFED rds source file ib_stats.c
7 * Oracle elects to have and use the contents of ib_stats.c under and governed
8 * by the OpenIB.org BSD license (see below for full license text). However,
9 * the following notice accompanied the original version of this file:
10 */
11
12 /*
13 * Copyright (c) 2006 Oracle. All rights reserved.
14 *
15 * This software is available to you under a choice of one of two
16 * licenses. You may choose to be licensed under the terms of the GNU
17 * General Public License (GPL) Version 2, available from the file
18 * COPYING in the main directory of this source tree, or the
19 * OpenIB.org BSD license below:
20 *
21 * Redistribution and use in source and binary forms, with or
22 * without modification, are permitted provided that the following
23 * conditions are met:
24 *
25 * - Redistributions of source code must retain the above
26 * copyright notice, this list of conditions and the following
27 * disclaimer.
28 *
29 * - Redistributions in binary form must reproduce the above
30 * copyright notice, this list of conditions and the following
31 * disclaimer in the documentation and/or other materials
32 * provided with the distribution.
33 *
34 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
35 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
36 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
37 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
38 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
39 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
40 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
41 * SOFTWARE.
42 *
43 */
44 #include <sys/rds.h>
45
46 #include <sys/ib/clients/rdsv3/rdsv3.h>
47 #include <sys/ib/clients/rdsv3/ib.h>
48 #include <sys/ib/clients/rdsv3/rdsv3_debug.h>
49
50 struct rdsv3_ib_statistics *rdsv3_ib_stats = NULL;
51
52 static char *rdsv3_ib_stat_names[] = {
53 "ib_connect_raced",
54 "ib_listen_closed_stale",
55 "ib_evt_handler_call",
56 "ib_tasklet_call",
57 "ib_tx_cq_event",
58 "ib_tx_ring_full",
59 "ib_tx_throttle",
60 "ib_tx_sg_mapping_failure",
61 "ib_tx_stalled",
62 "ib_tx_credit_updates",
63 "ib_rx_cq_event",
64 "ib_rx_ring_empty",
65 "ib_rx_refill_from_cq",
66 "ib_rx_refill_from_thread",
67 "ib_rx_alloc_limit",
68 "ib_rx_credit_updates",
69 "ib_ack_sent",
70 "ib_ack_send_failure",
71 "ib_ack_send_delayed",
72 "ib_ack_send_piggybacked",
73 "ib_ack_received",
74 "ib_rdma_mr_alloc",
75 "ib_rdma_mr_free",
76 "ib_rdma_mr_used",
77 "ib_rdma_mr_pool_flush",
78 "ib_rdma_mr_pool_wait",
79 "ib_rdma_mr_pool_depleted",
80 };
81
82 unsigned int
rdsv3_ib_stats_info_copy(struct rdsv3_info_iterator * iter,unsigned int avail)83 rdsv3_ib_stats_info_copy(struct rdsv3_info_iterator *iter,
84 unsigned int avail)
85 {
86 struct rdsv3_ib_statistics stats = {0, };
87 uint64_t *src;
88 uint64_t *sum;
89 size_t i;
90 int cpu;
91
92 RDSV3_DPRINTF4("rdsv3_ib_stats_info_copy", "iter: %p, avail: %d",
93 iter, avail);
94
95 if (avail < ARRAY_SIZE(rdsv3_ib_stat_names))
96 goto out;
97
98 for (cpu = 0; cpu < nr_cpus; cpu++) {
99 src = (uint64_t *)&(rdsv3_per_cpu(rdsv3_ib_stats, cpu));
100 sum = (uint64_t *)&stats;
101 for (i = 0; i < sizeof (stats) / sizeof (uint64_t); i++)
102 *(sum++) += *(src++);
103 }
104
105 rdsv3_stats_info_copy(iter, (uint64_t *)&stats, rdsv3_ib_stat_names,
106 ARRAY_SIZE(rdsv3_ib_stat_names));
107
108 RDSV3_DPRINTF4("rdsv3_ib_stats_info_copy",
109 "Return: iter: %p, avail: %d", iter, avail);
110 out:
111 return (ARRAY_SIZE(rdsv3_ib_stat_names));
112 }
113