1 /*- 2 * BSD LICENSE 3 * 4 * Copyright (c) Intel Corporation. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Intel Corporation nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include "ctx.h" 35 #include "stats.h" 36 37 int 38 vbdev_ocf_stats_get(ocf_cache_t cache, ocf_core_id_t core_id, struct vbdev_ocf_stats *stats) 39 { 40 int status; 41 ocf_core_t core; 42 43 if (cache == NULL) { 44 assert(false); 45 return -EFAULT; 46 } 47 48 status = ocf_mngt_cache_read_lock(cache); 49 if (status) { 50 return status; 51 } 52 53 status = ocf_core_get(cache, core_id, &core); 54 if (status) { 55 return status; 56 } 57 58 status = ocf_stats_collect_core(core, &stats->usage, &stats->reqs, &stats->blocks, &stats->errors); 59 ocf_mngt_cache_read_unlock(cache); 60 if (status) { 61 return status; 62 } 63 64 return 0; 65 } 66 67 #define WJSON_STAT(w, stats, group, field, units) \ 68 spdk_json_write_named_object_begin(w, #field); \ 69 spdk_json_write_named_uint64(w, "count", stats->group.field.value); \ 70 spdk_json_write_named_string_fmt(w, "percentage", "%lu.%lu", \ 71 stats->group.field.percent / 10, stats->group.field.percent % 10); \ 72 spdk_json_write_named_string(w, "units", units); \ 73 spdk_json_write_object_end(w); 74 75 void 76 vbdev_ocf_stats_write_json(struct spdk_json_write_ctx *w, struct vbdev_ocf_stats *stats) 77 { 78 spdk_json_write_object_begin(w); 79 80 spdk_json_write_named_object_begin(w, "usage"); 81 WJSON_STAT(w, stats, usage, occupancy, "4KiB blocks"); 82 WJSON_STAT(w, stats, usage, free, "4KiB blocks"); 83 WJSON_STAT(w, stats, usage, clean, "4KiB blocks"); 84 WJSON_STAT(w, stats, usage, dirty, "4KiB blocks"); 85 spdk_json_write_object_end(w); 86 87 spdk_json_write_named_object_begin(w, "requests"); 88 WJSON_STAT(w, stats, reqs, rd_hits, "Requests"); 89 WJSON_STAT(w, stats, reqs, rd_partial_misses, "Requests"); 90 WJSON_STAT(w, stats, reqs, rd_full_misses, "Requests"); 91 WJSON_STAT(w, stats, reqs, rd_total, "Requests"); 92 WJSON_STAT(w, stats, reqs, wr_hits, "Requests"); 93 WJSON_STAT(w, stats, reqs, wr_partial_misses, "Requests"); 94 WJSON_STAT(w, stats, reqs, wr_full_misses, "Requests"); 95 WJSON_STAT(w, stats, reqs, wr_total, "Requests"); 96 WJSON_STAT(w, stats, reqs, rd_pt, "Requests"); 97 WJSON_STAT(w, stats, reqs, wr_pt, "Requests"); 98 WJSON_STAT(w, stats, reqs, serviced, "Requests"); 99 WJSON_STAT(w, stats, reqs, total, "Requests"); 100 spdk_json_write_object_end(w); 101 102 spdk_json_write_named_object_begin(w, "blocks"); 103 WJSON_STAT(w, stats, blocks, core_volume_rd, "4KiB blocks"); 104 WJSON_STAT(w, stats, blocks, core_volume_wr, "4KiB blocks"); 105 WJSON_STAT(w, stats, blocks, core_volume_total, "4KiB blocks"); 106 WJSON_STAT(w, stats, blocks, cache_volume_rd, "4KiB blocks"); 107 WJSON_STAT(w, stats, blocks, cache_volume_wr, "4KiB blocks"); 108 WJSON_STAT(w, stats, blocks, cache_volume_total, "4KiB blocks"); 109 WJSON_STAT(w, stats, blocks, volume_rd, "4KiB blocks"); 110 WJSON_STAT(w, stats, blocks, volume_wr, "4KiB blocks"); 111 WJSON_STAT(w, stats, blocks, volume_total, "4KiB blocks"); 112 spdk_json_write_object_end(w); 113 114 spdk_json_write_named_object_begin(w, "errors"); 115 WJSON_STAT(w, stats, errors, core_volume_rd, "Requests"); 116 WJSON_STAT(w, stats, errors, core_volume_wr, "Requests"); 117 WJSON_STAT(w, stats, errors, core_volume_total, "Requests"); 118 WJSON_STAT(w, stats, errors, cache_volume_rd, "Requests"); 119 WJSON_STAT(w, stats, errors, cache_volume_wr, "Requests"); 120 WJSON_STAT(w, stats, errors, cache_volume_total, "Requests"); 121 WJSON_STAT(w, stats, errors, total, "Requests"); 122 spdk_json_write_object_end(w); 123 124 spdk_json_write_object_end(w); 125 } 126