mirror of
https://github.com/edk2-porting/linux-next.git
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3f5c11a463
Adding additional stats, and fixed logging messages. - Added qdepth change stats - Added separate isr stats for each type of interrupt - Fixed race in updating active IOs - Suppressed Link event message for DAS backend. Signed-off-by: Narsimhulu Musini <nmusini@cisco.com> Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com> 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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int 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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