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       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                 :            : void 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                 :          0 : snic_stats_update_active_ios(struct snic_stats *s_stats)
     108                 :            : {
     109                 :          0 :         struct snic_io_stats *io = &s_stats->io;
     110                 :          0 :         int nr_active_ios;
     111                 :            : 
     112                 :          0 :         nr_active_ios = atomic64_read(&io->active);
     113         [ #  # ]:          0 :         if (atomic64_read(&io->max_active) < nr_active_ios)
     114                 :          0 :                 atomic64_set(&io->max_active, nr_active_ios);
     115                 :            : 
     116                 :          0 :         atomic64_inc(&io->num_ios);
     117                 :          0 : }
     118                 :            : 
     119                 :            : /* Auxillary function to update IO completion counter */
     120                 :            : static inline void
     121                 :          0 : snic_stats_update_io_cmpl(struct snic_stats *s_stats)
     122                 :            : {
     123                 :          0 :         atomic64_dec(&s_stats->io.active);
     124         [ #  # ]:          0 :         if (unlikely(atomic64_read(&s_stats->io_cmpl_skip)))
     125                 :          0 :                 atomic64_dec(&s_stats->io_cmpl_skip);
     126                 :            :         else
     127                 :          0 :                 atomic64_inc(&s_stats->io.compl);
     128                 :          0 : }
     129                 :            : #endif /* __SNIC_STATS_H */