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 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