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scsi: fnic: Define stats to track multiqueue (MQ) IOs

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Define an array to track IOs for the different queues, print the IO stats
in fnic get stats data.

Reviewed-by: Sesidhar Baddela <sebaddel@cisco.com>
Reviewed-by: Arulprabhu Ponnusamy <arulponn@cisco.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Karan Tilak Kumar <kartilak@cisco.com>
Link: https://lore.kernel.org/r/20231211173617.932990-9-kartilak@cisco.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Karan Tilak Kumar 2023-12-11 09:36:12 -08:00 committed by Martin K. Petersen
parent 8a8449ca5e
commit b559b82771
2 changed files with 13 additions and 0 deletions
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2
drivers/scsi/fnic/fnic_stats.h
View File

@ -2,6 +2,7 @@
/* Copyright 2013 Cisco Systems, Inc. All rights reserved. */
#ifndef _FNIC_STATS_H_
#define _FNIC_STATS_H_
#define FNIC_MQ_MAX_QUEUES 64
struct stats_timestamps {
struct timespec64 last_reset_time;
@ -26,6 +27,7 @@ struct io_path_stats {
atomic64_t io_btw_10000_to_30000_msec;
atomic64_t io_greater_than_30000_msec;
atomic64_t current_max_io_time;
atomic64_t ios[FNIC_MQ_MAX_QUEUES];
};
struct abort_stats {

11
drivers/scsi/fnic/fnic_trace.c
View File

@ -204,6 +204,7 @@ int fnic_get_stats_data(struct stats_debug_info *debug,
int len = 0;
int buf_size = debug->buf_size;
struct timespec64 val1, val2;
int i = 0;
ktime_get_real_ts64(&val1);
len = scnprintf(debug->debug_buffer + len, buf_size - len,
@ -266,6 +267,16 @@ int fnic_get_stats_data(struct stats_debug_info *debug,
(u64)atomic64_read(&stats->io_stats.io_btw_10000_to_30000_msec),
(u64)atomic64_read(&stats->io_stats.io_greater_than_30000_msec));
len += scnprintf(debug->debug_buffer + len, buf_size - len,
"------------------------------------------\n"
"\t\tIO Queues and cumulative IOs\n"
"------------------------------------------\n");
for (i = 0; i < FNIC_MQ_MAX_QUEUES; i++) {
len += scnprintf(debug->debug_buffer + len, buf_size - len,
"Q:%d -> %lld\n", i, (u64)atomic64_read(&stats->io_stats.ios[i]));
}
len += scnprintf(debug->debug_buffer + len, buf_size - len,
"\nCurrent Max IO time : %lld\n",
(u64)atomic64_read(&stats->io_stats.current_max_io_time));