diff options
| -rw-r--r-- | drivers/scsi/fnic/fnic_debugfs.c | 1 | ||||
| -rw-r--r-- | drivers/scsi/fnic/fnic_stats.h | 7 | ||||
| -rw-r--r-- | drivers/scsi/fnic/fnic_trace.c | 24 |
3 files changed, 32 insertions, 0 deletions
diff --git a/drivers/scsi/fnic/fnic_debugfs.c b/drivers/scsi/fnic/fnic_debugfs.c index d6498fabe628..5e3d909cfc53 100644 --- a/drivers/scsi/fnic/fnic_debugfs.c +++ b/drivers/scsi/fnic/fnic_debugfs.c @@ -632,6 +632,7 @@ static ssize_t fnic_reset_stats_write(struct file *file, sizeof(struct io_path_stats) - sizeof(u64)); memset(fw_stats_p+1, 0, sizeof(struct fw_stats) - sizeof(u64)); + getnstimeofday(&stats->stats_timestamps.last_reset_time); } (*ppos)++; diff --git a/drivers/scsi/fnic/fnic_stats.h b/drivers/scsi/fnic/fnic_stats.h index 88c73cccb015..e007feedbf72 100644 --- a/drivers/scsi/fnic/fnic_stats.h +++ b/drivers/scsi/fnic/fnic_stats.h @@ -16,6 +16,12 @@ */ #ifndef _FNIC_STATS_H_ #define _FNIC_STATS_H_ + +struct stats_timestamps { + struct timespec last_reset_time; + struct timespec last_read_time; +}; + struct io_path_stats { atomic64_t active_ios; atomic64_t max_active_ios; @@ -110,6 +116,7 @@ struct misc_stats { }; struct fnic_stats { + struct stats_timestamps stats_timestamps; struct io_path_stats io_stats; struct abort_stats abts_stats; struct terminate_stats term_stats; diff --git a/drivers/scsi/fnic/fnic_trace.c b/drivers/scsi/fnic/fnic_trace.c index b5ac5381a0d7..4826f596cb31 100644 --- a/drivers/scsi/fnic/fnic_trace.c +++ b/drivers/scsi/fnic/fnic_trace.c @@ -219,7 +219,31 @@ int fnic_get_stats_data(struct stats_debug_info *debug, int buf_size = debug->buf_size; struct timespec val1, val2; + getnstimeofday(&val1); len = snprintf(debug->debug_buffer + len, buf_size - len, + "------------------------------------------\n" + "\t\tTime\n" + "------------------------------------------\n"); + + len += snprintf(debug->debug_buffer + len, buf_size - len, + "Current time : [%ld:%ld]\n" + "Last stats reset time: [%ld:%ld]\n" + "Last stats read time: [%ld:%ld]\n" + "delta since last reset: [%ld:%ld]\n" + "delta since last read: [%ld:%ld]\n", + val1.tv_sec, val1.tv_nsec, + stats->stats_timestamps.last_reset_time.tv_sec, + stats->stats_timestamps.last_reset_time.tv_nsec, + stats->stats_timestamps.last_read_time.tv_sec, + stats->stats_timestamps.last_read_time.tv_nsec, + timespec_sub(val1, stats->stats_timestamps.last_reset_time).tv_sec, + timespec_sub(val1, stats->stats_timestamps.last_reset_time).tv_nsec, + timespec_sub(val1, stats->stats_timestamps.last_read_time).tv_sec, + timespec_sub(val1, stats->stats_timestamps.last_read_time).tv_nsec); + + stats->stats_timestamps.last_read_time = val1; + + len += snprintf(debug->debug_buffer + len, buf_size - len, "------------------------------------------\n" "\t\tIO Statistics\n" "------------------------------------------\n"); |