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 atomic64_t q_fail; /* Abort Queuing Failed */ 46 }; 47 48 struct snic_reset_stats { 49 atomic64_t dev_resets; /* Device Reset Counter */ 50 atomic64_t dev_reset_fail; /* Device Reset Failures */ 51 atomic64_t dev_reset_aborts; /* Device Reset Aborts */ 52 atomic64_t dev_reset_tmo; /* Device Reset Timeout */ 53 atomic64_t dev_reset_terms; /* Device Reset terminate */ 54 atomic64_t hba_resets; /* hba/firmware resets */ 55 atomic64_t hba_reset_cmpl; /* hba/firmware reset completions */ 56 atomic64_t hba_reset_fail; /* hba/firmware failures */ 57 atomic64_t snic_resets; /* snic resets */ 58 atomic64_t snic_reset_compl; /* snic reset completions */ 59 atomic64_t snic_reset_fail; /* snic reset failures */ 60 }; 61 62 struct snic_fw_stats { 63 atomic64_t actv_reqs; /* Active Requests */ 64 atomic64_t max_actv_reqs; /* Max Active Requests */ 65 atomic64_t out_of_res; /* Firmware Out Of Resources */ 66 atomic64_t io_errs; /* Firmware IO Firmware Errors */ 67 atomic64_t scsi_errs; /* Target hits check condition */ 68 }; 69 70 struct snic_misc_stats { 71 u64 last_isr_time; 72 u64 last_ack_time; 73 atomic64_t ack_isr_cnt; 74 atomic64_t cmpl_isr_cnt; 75 atomic64_t errnotify_isr_cnt; 76 atomic64_t max_cq_ents; /* Max CQ Entries */ 77 atomic64_t data_cnt_mismat; /* Data Count Mismatch */ 78 atomic64_t io_tmo; 79 atomic64_t io_aborted; 80 atomic64_t sgl_inval; /* SGL Invalid */ 81 atomic64_t abts_wq_alloc_fail; /* Abort Path WQ desc alloc failure */ 82 atomic64_t devrst_wq_alloc_fail;/* Device Reset - WQ desc alloc fail */ 83 atomic64_t wq_alloc_fail; /* IO WQ desc alloc failure */ 84 atomic64_t no_icmnd_itmf_cmpls; 85 atomic64_t io_under_run; 86 atomic64_t qfull; 87 atomic64_t qsz_rampup; 88 atomic64_t qsz_rampdown; 89 atomic64_t last_qsz; 90 atomic64_t tgt_not_rdy; 91 }; 92 93 struct snic_stats { 94 struct snic_io_stats io; 95 struct snic_abort_stats abts; 96 struct snic_reset_stats reset; 97 struct snic_fw_stats fw; 98 struct snic_misc_stats misc; 99 atomic64_t io_cmpl_skip; 100 }; 101 102 int snic_stats_debugfs_init(struct snic *); 103 void snic_stats_debugfs_remove(struct snic *); 104 105 /* Auxillary function to update active IO counter */ 106 static inline void 107 snic_stats_update_active_ios(struct snic_stats *s_stats) 108 { 109 struct snic_io_stats *io = &s_stats->io; 110 int nr_active_ios; 111 112 nr_active_ios = atomic64_read(&io->active); 113 if (atomic64_read(&io->max_active) < nr_active_ios) 114 atomic64_set(&io->max_active, nr_active_ios); 115 116 atomic64_inc(&io->num_ios); 117 } 118 119 /* Auxillary function to update IO completion counter */ 120 static inline void 121 snic_stats_update_io_cmpl(struct snic_stats *s_stats) 122 { 123 atomic64_dec(&s_stats->io.active); 124 if (unlikely(atomic64_read(&s_stats->io_cmpl_skip))) 125 atomic64_dec(&s_stats->io_cmpl_skip); 126 else 127 atomic64_inc(&s_stats->io.compl); 128 } 129 #endif /* __SNIC_STATS_H */ 130