| Narsimhulu Musini | c8806b6 | 2015-05-29 01:04:01 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 Cisco Systems, Inc. All rights reserved. |
| 3 | * |
| 4 | * This program is free software; you may redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation; version 2 of the License. |
| 7 | * |
| 8 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 9 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 10 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 11 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| 12 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 13 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 14 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 15 | * SOFTWARE. |
| 16 | */ |
| 17 | |
| 18 | #ifndef __SNIC_STATS_H |
| 19 | #define __SNIC_STATS_H |
| 20 | |
| 21 | struct snic_io_stats { |
| 22 | atomic64_t active; /* Active IOs */ |
| 23 | atomic64_t max_active; /* Max # active IOs */ |
| 24 | atomic64_t max_sgl; /* Max # SGLs for any IO */ |
| 25 | atomic64_t max_time; /* Max time to process IO */ |
| 26 | atomic64_t max_qtime; /* Max time to Queue the IO */ |
| 27 | atomic64_t max_cmpl_time; /* Max time to complete the IO */ |
| 28 | atomic64_t sgl_cnt[SNIC_MAX_SG_DESC_CNT]; /* SGL Counters */ |
| 29 | atomic64_t max_io_sz; /* Max IO Size */ |
| 30 | atomic64_t compl; /* IO Completions */ |
| 31 | atomic64_t fail; /* IO Failures */ |
| 32 | atomic64_t req_null; /* req or req info is NULL */ |
| 33 | atomic64_t alloc_fail; /* Alloc Failures */ |
| 34 | atomic64_t sc_null; |
| 35 | atomic64_t io_not_found; /* IO Not Found */ |
| 36 | atomic64_t num_ios; /* Number of IOs */ |
| 37 | }; |
| 38 | |
| 39 | struct snic_abort_stats { |
| 40 | atomic64_t num; /* Abort counter */ |
| 41 | atomic64_t fail; /* Abort Failure Counter */ |
| 42 | atomic64_t drv_tmo; /* Abort Driver Timeouts */ |
| 43 | atomic64_t fw_tmo; /* Abort Firmware Timeouts */ |
| 44 | atomic64_t io_not_found;/* Abort IO Not Found */ |
| 45 | }; |
| 46 | |
| 47 | struct snic_reset_stats { |
| 48 | atomic64_t dev_resets; /* Device Reset Counter */ |
| 49 | atomic64_t dev_reset_fail; /* Device Reset Failures */ |
| 50 | atomic64_t dev_reset_aborts; /* Device Reset Aborts */ |
| 51 | atomic64_t dev_reset_tmo; /* Device Reset Timeout */ |
| 52 | atomic64_t dev_reset_terms; /* Device Reset terminate */ |
| 53 | atomic64_t hba_resets; /* hba/firmware resets */ |
| 54 | atomic64_t hba_reset_cmpl; /* hba/firmware reset completions */ |
| 55 | atomic64_t hba_reset_fail; /* hba/firmware failures */ |
| 56 | atomic64_t snic_resets; /* snic resets */ |
| 57 | atomic64_t snic_reset_compl; /* snic reset completions */ |
| 58 | atomic64_t snic_reset_fail; /* snic reset failures */ |
| 59 | }; |
| 60 | |
| 61 | struct snic_fw_stats { |
| 62 | atomic64_t actv_reqs; /* Active Requests */ |
| 63 | atomic64_t max_actv_reqs; /* Max Active Requests */ |
| 64 | atomic64_t out_of_res; /* Firmware Out Of Resources */ |
| 65 | atomic64_t io_errs; /* Firmware IO Firmware Errors */ |
| 66 | atomic64_t scsi_errs; /* Target hits check condition */ |
| 67 | }; |
| 68 | |
| 69 | struct snic_misc_stats { |
| 70 | u64 last_isr_time; |
| 71 | u64 last_ack_time; |
| 72 | atomic64_t isr_cnt; |
| 73 | atomic64_t max_cq_ents; /* Max CQ Entries */ |
| 74 | atomic64_t data_cnt_mismat; /* Data Count Mismatch */ |
| 75 | atomic64_t io_tmo; |
| 76 | atomic64_t io_aborted; |
| 77 | atomic64_t sgl_inval; /* SGL Invalid */ |
| 78 | atomic64_t abts_wq_alloc_fail; /* Abort Path WQ desc alloc failure */ |
| 79 | atomic64_t devrst_wq_alloc_fail;/* Device Reset - WQ desc alloc fail */ |
| 80 | atomic64_t wq_alloc_fail; /* IO WQ desc alloc failure */ |
| 81 | atomic64_t no_icmnd_itmf_cmpls; |
| 82 | atomic64_t io_under_run; |
| 83 | atomic64_t qfull; |
| 84 | atomic64_t tgt_not_rdy; |
| 85 | }; |
| 86 | |
| 87 | struct snic_stats { |
| 88 | struct snic_io_stats io; |
| 89 | struct snic_abort_stats abts; |
| 90 | struct snic_reset_stats reset; |
| 91 | struct snic_fw_stats fw; |
| 92 | struct snic_misc_stats misc; |
| 93 | atomic64_t io_cmpl_skip; |
| 94 | }; |
| 95 | |
| 96 | int snic_stats_debugfs_init(struct snic *); |
| 97 | void snic_stats_debugfs_remove(struct snic *); |
| 98 | |
| 99 | /* Auxillary function to update active IO counter */ |
| 100 | static inline void |
| 101 | snic_stats_update_active_ios(struct snic_stats *s_stats) |
| 102 | { |
| 103 | struct snic_io_stats *io = &s_stats->io; |
| 104 | u32 nr_active_ios; |
| 105 | |
| 106 | nr_active_ios = atomic64_inc_return(&io->active); |
| 107 | if (atomic64_read(&io->max_active) < nr_active_ios) |
| 108 | atomic64_set(&io->max_active, nr_active_ios); |
| 109 | |
| 110 | atomic64_inc(&io->num_ios); |
| 111 | } |
| 112 | |
| 113 | /* Auxillary function to update IO completion counter */ |
| 114 | static inline void |
| 115 | snic_stats_update_io_cmpl(struct snic_stats *s_stats) |
| 116 | { |
| 117 | atomic64_dec(&s_stats->io.active); |
| 118 | if (unlikely(atomic64_read(&s_stats->io_cmpl_skip))) |
| 119 | atomic64_dec(&s_stats->io_cmpl_skip); |
| 120 | else |
| 121 | atomic64_inc(&s_stats->io.compl); |
| 122 | } |
| 123 | #endif /* __SNIC_STATS_H */ |