fd84ec206d
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: Karan Tilak Kumar <kartilak@cisco.com> Cc: Sesidhar Baddela <sebaddel@cisco.com> Cc: "James E.J. Bottomley" <jejb@linux.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: linux-scsi@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
130 lines
4.4 KiB
C
130 lines
4.4 KiB
C
/*
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* Copyright 2014 Cisco Systems, Inc. All rights reserved.
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*
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* This program is free software; you may redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef __SNIC_STATS_H
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#define __SNIC_STATS_H
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struct snic_io_stats {
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atomic64_t active; /* Active IOs */
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atomic64_t max_active; /* Max # active IOs */
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atomic64_t max_sgl; /* Max # SGLs for any IO */
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atomic64_t max_time; /* Max time to process IO */
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atomic64_t max_qtime; /* Max time to Queue the IO */
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atomic64_t max_cmpl_time; /* Max time to complete the IO */
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atomic64_t sgl_cnt[SNIC_MAX_SG_DESC_CNT]; /* SGL Counters */
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atomic64_t max_io_sz; /* Max IO Size */
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atomic64_t compl; /* IO Completions */
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atomic64_t fail; /* IO Failures */
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atomic64_t req_null; /* req or req info is NULL */
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atomic64_t alloc_fail; /* Alloc Failures */
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atomic64_t sc_null;
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atomic64_t io_not_found; /* IO Not Found */
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atomic64_t num_ios; /* Number of IOs */
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};
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struct snic_abort_stats {
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atomic64_t num; /* Abort counter */
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atomic64_t fail; /* Abort Failure Counter */
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atomic64_t drv_tmo; /* Abort Driver Timeouts */
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atomic64_t fw_tmo; /* Abort Firmware Timeouts */
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atomic64_t io_not_found;/* Abort IO Not Found */
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atomic64_t q_fail; /* Abort Queuing Failed */
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};
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struct snic_reset_stats {
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atomic64_t dev_resets; /* Device Reset Counter */
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atomic64_t dev_reset_fail; /* Device Reset Failures */
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atomic64_t dev_reset_aborts; /* Device Reset Aborts */
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atomic64_t dev_reset_tmo; /* Device Reset Timeout */
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atomic64_t dev_reset_terms; /* Device Reset terminate */
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atomic64_t hba_resets; /* hba/firmware resets */
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atomic64_t hba_reset_cmpl; /* hba/firmware reset completions */
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atomic64_t hba_reset_fail; /* hba/firmware failures */
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atomic64_t snic_resets; /* snic resets */
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atomic64_t snic_reset_compl; /* snic reset completions */
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atomic64_t snic_reset_fail; /* snic reset failures */
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};
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struct snic_fw_stats {
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atomic64_t actv_reqs; /* Active Requests */
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atomic64_t max_actv_reqs; /* Max Active Requests */
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atomic64_t out_of_res; /* Firmware Out Of Resources */
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atomic64_t io_errs; /* Firmware IO Firmware Errors */
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atomic64_t scsi_errs; /* Target hits check condition */
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};
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struct snic_misc_stats {
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u64 last_isr_time;
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u64 last_ack_time;
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atomic64_t ack_isr_cnt;
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atomic64_t cmpl_isr_cnt;
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atomic64_t errnotify_isr_cnt;
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atomic64_t max_cq_ents; /* Max CQ Entries */
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atomic64_t data_cnt_mismat; /* Data Count Mismatch */
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atomic64_t io_tmo;
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atomic64_t io_aborted;
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atomic64_t sgl_inval; /* SGL Invalid */
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atomic64_t abts_wq_alloc_fail; /* Abort Path WQ desc alloc failure */
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atomic64_t devrst_wq_alloc_fail;/* Device Reset - WQ desc alloc fail */
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atomic64_t wq_alloc_fail; /* IO WQ desc alloc failure */
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atomic64_t no_icmnd_itmf_cmpls;
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atomic64_t io_under_run;
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atomic64_t qfull;
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atomic64_t qsz_rampup;
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atomic64_t qsz_rampdown;
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atomic64_t last_qsz;
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atomic64_t tgt_not_rdy;
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};
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struct snic_stats {
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struct snic_io_stats io;
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struct snic_abort_stats abts;
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struct snic_reset_stats reset;
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struct snic_fw_stats fw;
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struct snic_misc_stats misc;
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atomic64_t io_cmpl_skip;
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};
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void snic_stats_debugfs_init(struct snic *);
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void snic_stats_debugfs_remove(struct snic *);
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/* Auxillary function to update active IO counter */
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static inline void
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snic_stats_update_active_ios(struct snic_stats *s_stats)
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{
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struct snic_io_stats *io = &s_stats->io;
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int nr_active_ios;
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nr_active_ios = atomic64_read(&io->active);
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if (atomic64_read(&io->max_active) < nr_active_ios)
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atomic64_set(&io->max_active, nr_active_ios);
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atomic64_inc(&io->num_ios);
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}
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/* Auxillary function to update IO completion counter */
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static inline void
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snic_stats_update_io_cmpl(struct snic_stats *s_stats)
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{
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atomic64_dec(&s_stats->io.active);
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if (unlikely(atomic64_read(&s_stats->io_cmpl_skip)))
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atomic64_dec(&s_stats->io_cmpl_skip);
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else
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atomic64_inc(&s_stats->io.compl);
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}
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#endif /* __SNIC_STATS_H */
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