Its idea was to be a simple initiator and execute several commands from kernel level, but FreeBSD never had consumer for that functionality, while its implementation polluted many unrelated places..
728 lines
20 KiB
C
728 lines
20 KiB
C
/*-
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* Copyright (c) 2004, 2008, 2009 Silicon Graphics International Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*
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* $Id: //depot/users/kenm/FreeBSD-test2/usr.bin/ctlstat/ctlstat.c#4 $
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*/
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/*
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* CAM Target Layer statistics program
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*
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* Authors: Ken Merry <ken@FreeBSD.org>, Will Andrews <will@FreeBSD.org>
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/sysctl.h>
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#include <sys/resource.h>
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#include <sys/queue.h>
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#include <sys/callout.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <getopt.h>
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#include <string.h>
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#include <errno.h>
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#include <err.h>
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#include <ctype.h>
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#include <bitstring.h>
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#include <cam/scsi/scsi_all.h>
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#include <cam/ctl/ctl.h>
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#include <cam/ctl/ctl_io.h>
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#include <cam/ctl/ctl_scsi_all.h>
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#include <cam/ctl/ctl_util.h>
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#include <cam/ctl/ctl_backend.h>
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#include <cam/ctl/ctl_ioctl.h>
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/*
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* The default amount of space we allocate for LUN storage space. We
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* dynamically allocate more if needed.
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*/
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#define CTL_STAT_NUM_LUNS 30
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/*
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* The default number of LUN selection bits we allocate. This is large
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* because we don't currently increase it if the user specifies a LUN
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* number of 1024 or larger.
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*/
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#define CTL_STAT_LUN_BITS 1024L
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static const char *ctlstat_opts = "Cc:Ddhjl:n:tw:";
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static const char *ctlstat_usage = "Usage: ctlstat [-CDdjht] [-l lunnum]"
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"[-c count] [-n numdevs] [-w wait]\n";
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struct ctl_cpu_stats {
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uint64_t user;
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uint64_t nice;
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uint64_t system;
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uint64_t intr;
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uint64_t idle;
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};
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typedef enum {
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CTLSTAT_MODE_STANDARD,
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CTLSTAT_MODE_DUMP,
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CTLSTAT_MODE_JSON,
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} ctlstat_mode_types;
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#define CTLSTAT_FLAG_CPU (1 << 0)
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#define CTLSTAT_FLAG_HEADER (1 << 1)
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#define CTLSTAT_FLAG_FIRST_RUN (1 << 2)
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#define CTLSTAT_FLAG_TOTALS (1 << 3)
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#define CTLSTAT_FLAG_DMA_TIME (1 << 4)
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#define CTLSTAT_FLAG_LUN_TIME_VALID (1 << 5)
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#define F_CPU(ctx) ((ctx)->flags & CTLSTAT_FLAG_CPU)
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#define F_HDR(ctx) ((ctx)->flags & CTLSTAT_FLAG_HEADER)
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#define F_FIRST(ctx) ((ctx)->flags & CTLSTAT_FLAG_FIRST_RUN)
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#define F_TOTALS(ctx) ((ctx)->flags & CTLSTAT_FLAG_TOTALS)
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#define F_DMA(ctx) ((ctx)->flags & CTLSTAT_FLAG_DMA_TIME)
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#define F_LUNVAL(ctx) ((ctx)->flags & CTLSTAT_FLAG_LUN_TIME_VALID)
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struct ctlstat_context {
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ctlstat_mode_types mode;
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int flags;
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struct ctl_lun_io_stats *cur_lun_stats, *prev_lun_stats,
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*tmp_lun_stats;
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struct ctl_lun_io_stats cur_total_stats[3], prev_total_stats[3];
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struct timespec cur_time, prev_time;
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struct ctl_cpu_stats cur_cpu, prev_cpu;
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uint64_t cur_total_jiffies, prev_total_jiffies;
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uint64_t cur_idle, prev_idle;
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bitstr_t bit_decl(lun_mask, CTL_STAT_LUN_BITS);
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int num_luns;
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int numdevs;
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int header_interval;
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};
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#ifndef min
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#define min(x,y) (((x) < (y)) ? (x) : (y))
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#endif
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static void usage(int error);
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static int getstats(int fd, int *num_luns, struct ctl_lun_io_stats **xlun_stats,
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struct timespec *cur_time, int *lun_time_valid);
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static int getcpu(struct ctl_cpu_stats *cpu_stats);
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static void compute_stats(struct ctl_lun_io_stats *cur_stats,
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struct ctl_lun_io_stats *prev_stats,
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long double etime, long double *mbsec,
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long double *kb_per_transfer,
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long double *transfers_per_second,
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long double *ms_per_transfer,
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long double *ms_per_dma,
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long double *dmas_per_second);
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static void
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usage(int error)
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{
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fputs(ctlstat_usage, error ? stderr : stdout);
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}
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static int
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getstats(int fd, int *num_luns, struct ctl_lun_io_stats **xlun_stats,
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struct timespec *cur_time, int *flags)
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{
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struct ctl_lun_io_stats *lun_stats;
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struct ctl_stats stats;
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int more_space_count;
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more_space_count = 0;
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if (*num_luns == 0)
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*num_luns = CTL_STAT_NUM_LUNS;
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lun_stats = *xlun_stats;
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retry:
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if (lun_stats == NULL) {
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lun_stats = (struct ctl_lun_io_stats *)malloc(
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sizeof(*lun_stats) * *num_luns);
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}
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memset(&stats, 0, sizeof(stats));
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stats.alloc_len = *num_luns * sizeof(*lun_stats);
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memset(lun_stats, 0, stats.alloc_len);
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stats.lun_stats = lun_stats;
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if (ioctl(fd, CTL_GETSTATS, &stats) == -1)
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err(1, "error returned from CTL_GETSTATS ioctl");
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switch (stats.status) {
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case CTL_SS_OK:
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break;
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case CTL_SS_ERROR:
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err(1, "CTL_SS_ERROR returned from CTL_GETSTATS ioctl");
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break;
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case CTL_SS_NEED_MORE_SPACE:
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if (more_space_count > 0) {
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errx(1, "CTL_GETSTATS returned NEED_MORE_SPACE again");
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}
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*num_luns = stats.num_luns;
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free(lun_stats);
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lun_stats = NULL;
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more_space_count++;
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goto retry;
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break; /* NOTREACHED */
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default:
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errx(1, "unknown status %d returned from CTL_GETSTATS ioctl",
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stats.status);
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break;
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}
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*xlun_stats = lun_stats;
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*num_luns = stats.num_luns;
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cur_time->tv_sec = stats.timestamp.tv_sec;
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cur_time->tv_nsec = stats.timestamp.tv_nsec;
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if (stats.flags & CTL_STATS_FLAG_TIME_VALID)
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*flags |= CTLSTAT_FLAG_LUN_TIME_VALID;
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else
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*flags &= ~CTLSTAT_FLAG_LUN_TIME_VALID;
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return (0);
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}
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static int
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getcpu(struct ctl_cpu_stats *cpu_stats)
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{
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long cp_time[CPUSTATES];
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size_t cplen;
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cplen = sizeof(cp_time);
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if (sysctlbyname("kern.cp_time", &cp_time, &cplen, NULL, 0) == -1) {
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warn("sysctlbyname(kern.cp_time...) failed");
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return (1);
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}
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cpu_stats->user = cp_time[CP_USER];
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cpu_stats->nice = cp_time[CP_NICE];
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cpu_stats->system = cp_time[CP_SYS];
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cpu_stats->intr = cp_time[CP_INTR];
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cpu_stats->idle = cp_time[CP_IDLE];
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return (0);
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}
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static void
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compute_stats(struct ctl_lun_io_stats *cur_stats,
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struct ctl_lun_io_stats *prev_stats, long double etime,
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long double *mbsec, long double *kb_per_transfer,
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long double *transfers_per_second, long double *ms_per_transfer,
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long double *ms_per_dma, long double *dmas_per_second)
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{
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uint64_t total_bytes = 0, total_operations = 0, total_dmas = 0;
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uint32_t port;
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struct bintime total_time_bt, total_dma_bt;
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struct timespec total_time_ts, total_dma_ts;
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int i;
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bzero(&total_time_bt, sizeof(total_time_bt));
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bzero(&total_dma_bt, sizeof(total_dma_bt));
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bzero(&total_time_ts, sizeof(total_time_ts));
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bzero(&total_dma_ts, sizeof(total_dma_ts));
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for (port = 0; port < CTL_MAX_PORTS; port++) {
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for (i = 0; i < CTL_STATS_NUM_TYPES; i++) {
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total_bytes += cur_stats->ports[port].bytes[i];
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total_operations +=
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cur_stats->ports[port].operations[i];
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total_dmas += cur_stats->ports[port].num_dmas[i];
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bintime_add(&total_time_bt,
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&cur_stats->ports[port].time[i]);
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bintime_add(&total_dma_bt,
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&cur_stats->ports[port].dma_time[i]);
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if (prev_stats != NULL) {
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total_bytes -=
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prev_stats->ports[port].bytes[i];
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total_operations -=
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prev_stats->ports[port].operations[i];
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total_dmas -=
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prev_stats->ports[port].num_dmas[i];
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bintime_sub(&total_time_bt,
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&prev_stats->ports[port].time[i]);
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bintime_sub(&total_dma_bt,
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&prev_stats->ports[port].dma_time[i]);
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}
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}
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}
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*mbsec = total_bytes;
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*mbsec /= 1024 * 1024;
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if (etime > 0.0)
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*mbsec /= etime;
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else
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*mbsec = 0;
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*kb_per_transfer = total_bytes;
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*kb_per_transfer /= 1024;
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if (total_operations > 0)
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*kb_per_transfer /= total_operations;
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else
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*kb_per_transfer = 0;
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*transfers_per_second = total_operations;
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*dmas_per_second = total_dmas;
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if (etime > 0.0) {
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*transfers_per_second /= etime;
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*dmas_per_second /= etime;
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} else {
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*transfers_per_second = 0;
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*dmas_per_second = 0;
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}
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bintime2timespec(&total_time_bt, &total_time_ts);
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bintime2timespec(&total_dma_bt, &total_dma_ts);
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if (total_operations > 0) {
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/*
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* Convert the timespec to milliseconds.
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*/
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*ms_per_transfer = total_time_ts.tv_sec * 1000;
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*ms_per_transfer += total_time_ts.tv_nsec / 1000000;
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*ms_per_transfer /= total_operations;
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} else
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*ms_per_transfer = 0;
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if (total_dmas > 0) {
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/*
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* Convert the timespec to milliseconds.
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*/
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*ms_per_dma = total_dma_ts.tv_sec * 1000;
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*ms_per_dma += total_dma_ts.tv_nsec / 1000000;
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*ms_per_dma /= total_dmas;
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} else
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*ms_per_dma = 0;
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}
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/* The dump_stats() and json_stats() functions perform essentially the same
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* purpose, but dump the statistics in different formats. JSON is more
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* conducive to programming, however.
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*/
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#define PRINT_BINTIME(prefix, bt) \
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printf("%s %jd s %ju frac\n", prefix, (intmax_t)(bt).sec, \
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(uintmax_t)(bt).frac)
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static const char *iotypes[] = {"NO IO", "READ", "WRITE"};
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static void
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ctlstat_dump(struct ctlstat_context *ctx) {
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int iotype, lun, port;
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struct ctl_lun_io_stats *stats = ctx->cur_lun_stats;
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for (lun = 0; lun < ctx->num_luns;lun++) {
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printf("lun %d\n", lun);
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for (port = 0; port < CTL_MAX_PORTS; port++) {
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printf(" port %d\n",
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stats[lun].ports[port].targ_port);
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for (iotype = 0; iotype < CTL_STATS_NUM_TYPES;
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iotype++) {
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printf(" io type %d (%s)\n", iotype,
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iotypes[iotype]);
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printf(" bytes %ju\n", (uintmax_t)
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stats[lun].ports[port].bytes[iotype]);
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printf(" operations %ju\n", (uintmax_t)
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stats[lun].ports[port].operations[iotype]);
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PRINT_BINTIME(" io time",
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stats[lun].ports[port].time[iotype]);
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printf(" num dmas %ju\n", (uintmax_t)
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stats[lun].ports[port].num_dmas[iotype]);
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PRINT_BINTIME(" dma time",
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stats[lun].ports[port].dma_time[iotype]);
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}
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}
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}
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}
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#define JSON_BINTIME(prefix, bt) \
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printf("\"%s\":{\"sec\":%jd,\"frac\":%ju},", \
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prefix, (intmax_t)(bt).sec, (uintmax_t)(bt).frac)
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static void
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ctlstat_json(struct ctlstat_context *ctx) {
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int iotype, lun, port;
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struct ctl_lun_io_stats *stats = ctx->cur_lun_stats;
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printf("{\"luns\":[");
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for (lun = 0; lun < ctx->num_luns; lun++) {
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printf("{\"ports\":[");
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for (port = 0; port < CTL_MAX_PORTS;port++) {
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printf("{\"num\":%d,\"io\":[",
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stats[lun].ports[port].targ_port);
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for (iotype = 0; iotype < CTL_STATS_NUM_TYPES;
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iotype++) {
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printf("{\"type\":\"%s\",", iotypes[iotype]);
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printf("\"bytes\":%ju,", (uintmax_t)stats[
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lun].ports[port].bytes[iotype]);
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printf("\"operations\":%ju,", (uintmax_t)stats[
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lun].ports[port].operations[iotype]);
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JSON_BINTIME("io time",
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stats[lun].ports[port].time[iotype]);
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JSON_BINTIME("dma time",
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stats[lun].ports[port].dma_time[iotype]);
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printf("\"num dmas\":%ju}", (uintmax_t)
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stats[lun].ports[port].num_dmas[iotype]);
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if (iotype < (CTL_STATS_NUM_TYPES - 1))
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printf(","); /* continue io array */
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}
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printf("]}"); /* close port */
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if (port < (CTL_MAX_PORTS - 1))
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printf(","); /* continue port array */
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}
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printf("]}"); /* close lun */
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if (lun < (ctx->num_luns - 1))
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printf(","); /* continue lun array */
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}
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printf("]}"); /* close luns and toplevel */
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}
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static void
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ctlstat_standard(struct ctlstat_context *ctx) {
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long double etime;
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uint64_t delta_jiffies, delta_idle;
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uint32_t port;
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long double cpu_percentage;
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int i;
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int j;
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cpu_percentage = 0;
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if (F_CPU(ctx) && (getcpu(&ctx->cur_cpu) != 0))
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errx(1, "error returned from getcpu()");
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etime = ctx->cur_time.tv_sec - ctx->prev_time.tv_sec +
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(ctx->prev_time.tv_nsec - ctx->cur_time.tv_nsec) * 1e-9;
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if (F_CPU(ctx)) {
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ctx->prev_total_jiffies = ctx->cur_total_jiffies;
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ctx->cur_total_jiffies = ctx->cur_cpu.user +
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ctx->cur_cpu.nice + ctx->cur_cpu.system +
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ctx->cur_cpu.intr + ctx->cur_cpu.idle;
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delta_jiffies = ctx->cur_total_jiffies;
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if (F_FIRST(ctx) == 0)
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delta_jiffies -= ctx->prev_total_jiffies;
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ctx->prev_idle = ctx->cur_idle;
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ctx->cur_idle = ctx->cur_cpu.idle;
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delta_idle = ctx->cur_idle - ctx->prev_idle;
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cpu_percentage = delta_jiffies - delta_idle;
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cpu_percentage /= delta_jiffies;
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cpu_percentage *= 100;
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}
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if (F_HDR(ctx)) {
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ctx->header_interval--;
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if (ctx->header_interval <= 0) {
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int hdr_devs;
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hdr_devs = 0;
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if (F_TOTALS(ctx)) {
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fprintf(stdout, "%s System Read %s"
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"System Write %sSystem Total%s\n",
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(F_LUNVAL(ctx) != 0) ? " " : "",
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(F_LUNVAL(ctx) != 0) ? " " : "",
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(F_LUNVAL(ctx) != 0) ? " " : "",
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(F_CPU(ctx)) ? " CPU" : "");
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hdr_devs = 3;
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} else {
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if (F_CPU(ctx))
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fprintf(stdout, " CPU ");
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for (i = 0; i < min(CTL_STAT_LUN_BITS,
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ctx->num_luns); i++) {
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int lun;
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/*
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* Obviously this won't work with
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* LUN numbers greater than a signed
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* integer.
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|
*/
|
|
lun = (int)ctx->cur_lun_stats[i
|
|
].lun_number;
|
|
|
|
if (bit_test(ctx->lun_mask, lun) == 0)
|
|
continue;
|
|
fprintf(stdout, "%15.6s%d %s",
|
|
"lun", lun,
|
|
(F_LUNVAL(ctx) != 0) ? " " : "");
|
|
hdr_devs++;
|
|
}
|
|
fprintf(stdout, "\n");
|
|
}
|
|
for (i = 0; i < hdr_devs; i++)
|
|
fprintf(stdout, "%s %sKB/t %s MB/s ",
|
|
((F_CPU(ctx) != 0) && (i == 0) &&
|
|
(F_TOTALS(ctx) == 0)) ? " " : "",
|
|
(F_LUNVAL(ctx) != 0) ? " ms " : "",
|
|
(F_DMA(ctx) == 0) ? "tps" : "dps");
|
|
fprintf(stdout, "\n");
|
|
ctx->header_interval = 20;
|
|
}
|
|
}
|
|
|
|
if (F_TOTALS(ctx) != 0) {
|
|
long double mbsec[3];
|
|
long double kb_per_transfer[3];
|
|
long double transfers_per_sec[3];
|
|
long double ms_per_transfer[3];
|
|
long double ms_per_dma[3];
|
|
long double dmas_per_sec[3];
|
|
|
|
for (i = 0; i < 3; i++)
|
|
ctx->prev_total_stats[i] = ctx->cur_total_stats[i];
|
|
|
|
memset(&ctx->cur_total_stats, 0, sizeof(ctx->cur_total_stats));
|
|
|
|
/* Use macros to make the next loop more readable. */
|
|
#define ADD_STATS_BYTES(st, p, i, j) \
|
|
ctx->cur_total_stats[st].ports[p].bytes[j] += \
|
|
ctx->cur_lun_stats[i].ports[p].bytes[j]
|
|
#define ADD_STATS_OPERATIONS(st, p, i, j) \
|
|
ctx->cur_total_stats[st].ports[p].operations[j] += \
|
|
ctx->cur_lun_stats[i].ports[p].operations[j]
|
|
#define ADD_STATS_NUM_DMAS(st, p, i, j) \
|
|
ctx->cur_total_stats[st].ports[p].num_dmas[j] += \
|
|
ctx->cur_lun_stats[i].ports[p].num_dmas[j]
|
|
#define ADD_STATS_TIME(st, p, i, j) \
|
|
bintime_add(&ctx->cur_total_stats[st].ports[p].time[j], \
|
|
&ctx->cur_lun_stats[i].ports[p].time[j])
|
|
#define ADD_STATS_DMA_TIME(st, p, i, j) \
|
|
bintime_add(&ctx->cur_total_stats[st].ports[p].dma_time[j], \
|
|
&ctx->cur_lun_stats[i].ports[p].dma_time[j])
|
|
|
|
for (i = 0; i < ctx->num_luns; i++) {
|
|
for (port = 0; port < CTL_MAX_PORTS; port++) {
|
|
for (j = 0; j < CTL_STATS_NUM_TYPES; j++) {
|
|
ADD_STATS_BYTES(2, port, i, j);
|
|
ADD_STATS_OPERATIONS(2, port, i, j);
|
|
ADD_STATS_NUM_DMAS(2, port, i, j);
|
|
ADD_STATS_TIME(2, port, i, j);
|
|
ADD_STATS_DMA_TIME(2, port, i, j);
|
|
}
|
|
ADD_STATS_BYTES(0, port, i, CTL_STATS_READ);
|
|
ADD_STATS_OPERATIONS(0, port, i,
|
|
CTL_STATS_READ);
|
|
ADD_STATS_NUM_DMAS(0, port, i, CTL_STATS_READ);
|
|
ADD_STATS_TIME(0, port, i, CTL_STATS_READ);
|
|
ADD_STATS_DMA_TIME(0, port, i, CTL_STATS_READ);
|
|
|
|
ADD_STATS_BYTES(1, port, i, CTL_STATS_WRITE);
|
|
ADD_STATS_OPERATIONS(1, port, i,
|
|
CTL_STATS_WRITE);
|
|
ADD_STATS_NUM_DMAS(1, port, i, CTL_STATS_WRITE);
|
|
ADD_STATS_TIME(1, port, i, CTL_STATS_WRITE);
|
|
ADD_STATS_DMA_TIME(1, port, i, CTL_STATS_WRITE);
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
compute_stats(&ctx->cur_total_stats[i],
|
|
F_FIRST(ctx) ? NULL : &ctx->prev_total_stats[i],
|
|
etime, &mbsec[i], &kb_per_transfer[i],
|
|
&transfers_per_sec[i],
|
|
&ms_per_transfer[i], &ms_per_dma[i],
|
|
&dmas_per_sec[i]);
|
|
if (F_DMA(ctx) != 0)
|
|
fprintf(stdout, " %2.2Lf",
|
|
ms_per_dma[i]);
|
|
else if (F_LUNVAL(ctx) != 0)
|
|
fprintf(stdout, " %2.2Lf",
|
|
ms_per_transfer[i]);
|
|
fprintf(stdout, " %5.2Lf %3.0Lf %5.2Lf ",
|
|
kb_per_transfer[i],
|
|
(F_DMA(ctx) == 0) ? transfers_per_sec[i] :
|
|
dmas_per_sec[i], mbsec[i]);
|
|
}
|
|
if (F_CPU(ctx))
|
|
fprintf(stdout, " %5.1Lf%%", cpu_percentage);
|
|
} else {
|
|
if (F_CPU(ctx))
|
|
fprintf(stdout, "%5.1Lf%% ", cpu_percentage);
|
|
|
|
for (i = 0; i < min(CTL_STAT_LUN_BITS, ctx->num_luns); i++) {
|
|
long double mbsec, kb_per_transfer;
|
|
long double transfers_per_sec;
|
|
long double ms_per_transfer;
|
|
long double ms_per_dma;
|
|
long double dmas_per_sec;
|
|
|
|
if (bit_test(ctx->lun_mask,
|
|
(int)ctx->cur_lun_stats[i].lun_number) == 0)
|
|
continue;
|
|
compute_stats(&ctx->cur_lun_stats[i], F_FIRST(ctx) ?
|
|
NULL : &ctx->prev_lun_stats[i], etime,
|
|
&mbsec, &kb_per_transfer,
|
|
&transfers_per_sec, &ms_per_transfer,
|
|
&ms_per_dma, &dmas_per_sec);
|
|
if (F_DMA(ctx))
|
|
fprintf(stdout, " %2.2Lf",
|
|
ms_per_dma);
|
|
else if (F_LUNVAL(ctx) != 0)
|
|
fprintf(stdout, " %2.2Lf",
|
|
ms_per_transfer);
|
|
fprintf(stdout, " %5.2Lf %3.0Lf %5.2Lf ",
|
|
kb_per_transfer, (F_DMA(ctx) == 0) ?
|
|
transfers_per_sec : dmas_per_sec, mbsec);
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
int c;
|
|
int count, waittime;
|
|
int set_lun;
|
|
int fd, retval;
|
|
struct ctlstat_context ctx;
|
|
|
|
/* default values */
|
|
retval = 0;
|
|
waittime = 1;
|
|
count = -1;
|
|
memset(&ctx, 0, sizeof(ctx));
|
|
ctx.numdevs = 3;
|
|
ctx.mode = CTLSTAT_MODE_STANDARD;
|
|
ctx.flags |= CTLSTAT_FLAG_CPU;
|
|
ctx.flags |= CTLSTAT_FLAG_FIRST_RUN;
|
|
ctx.flags |= CTLSTAT_FLAG_HEADER;
|
|
|
|
while ((c = getopt(argc, argv, ctlstat_opts)) != -1) {
|
|
switch (c) {
|
|
case 'C':
|
|
ctx.flags &= ~CTLSTAT_FLAG_CPU;
|
|
break;
|
|
case 'c':
|
|
count = atoi(optarg);
|
|
break;
|
|
case 'd':
|
|
ctx.flags |= CTLSTAT_FLAG_DMA_TIME;
|
|
break;
|
|
case 'D':
|
|
ctx.mode = CTLSTAT_MODE_DUMP;
|
|
waittime = 30;
|
|
break;
|
|
case 'h':
|
|
ctx.flags &= ~CTLSTAT_FLAG_HEADER;
|
|
break;
|
|
case 'j':
|
|
ctx.mode = CTLSTAT_MODE_JSON;
|
|
waittime = 30;
|
|
break;
|
|
case 'l': {
|
|
int cur_lun;
|
|
|
|
cur_lun = atoi(optarg);
|
|
if (cur_lun > CTL_STAT_LUN_BITS)
|
|
errx(1, "Invalid LUN number %d", cur_lun);
|
|
|
|
bit_ffs(ctx.lun_mask, CTL_STAT_LUN_BITS, &set_lun);
|
|
if (set_lun == -1)
|
|
ctx.numdevs = 1;
|
|
else
|
|
ctx.numdevs++;
|
|
bit_set(ctx.lun_mask, cur_lun);
|
|
break;
|
|
}
|
|
case 'n':
|
|
ctx.numdevs = atoi(optarg);
|
|
break;
|
|
case 't':
|
|
ctx.flags |= CTLSTAT_FLAG_TOTALS;
|
|
ctx.numdevs = 3;
|
|
break;
|
|
case 'w':
|
|
waittime = atoi(optarg);
|
|
break;
|
|
default:
|
|
retval = 1;
|
|
usage(retval);
|
|
exit(retval);
|
|
break;
|
|
}
|
|
}
|
|
|
|
bit_ffs(ctx.lun_mask, CTL_STAT_LUN_BITS, &set_lun);
|
|
|
|
if ((F_TOTALS(&ctx))
|
|
&& (set_lun != -1)) {
|
|
errx(1, "Total Mode (-t) is incompatible with individual "
|
|
"LUN mode (-l)");
|
|
} else if (set_lun == -1) {
|
|
/*
|
|
* Note that this just selects the first N LUNs to display,
|
|
* but at this point we have no knoweledge of which LUN
|
|
* numbers actually exist. So we may select LUNs that
|
|
* aren't there.
|
|
*/
|
|
bit_nset(ctx.lun_mask, 0, min(ctx.numdevs - 1,
|
|
CTL_STAT_LUN_BITS - 1));
|
|
}
|
|
|
|
if ((fd = open(CTL_DEFAULT_DEV, O_RDWR)) == -1)
|
|
err(1, "cannot open %s", CTL_DEFAULT_DEV);
|
|
|
|
for (;count != 0;) {
|
|
ctx.tmp_lun_stats = ctx.prev_lun_stats;
|
|
ctx.prev_lun_stats = ctx.cur_lun_stats;
|
|
ctx.cur_lun_stats = ctx.tmp_lun_stats;
|
|
ctx.prev_time = ctx.cur_time;
|
|
ctx.prev_cpu = ctx.cur_cpu;
|
|
if (getstats(fd, &ctx.num_luns, &ctx.cur_lun_stats,
|
|
&ctx.cur_time, &ctx.flags) != 0)
|
|
errx(1, "error returned from getstats()");
|
|
|
|
switch(ctx.mode) {
|
|
case CTLSTAT_MODE_STANDARD:
|
|
ctlstat_standard(&ctx);
|
|
break;
|
|
case CTLSTAT_MODE_DUMP:
|
|
ctlstat_dump(&ctx);
|
|
break;
|
|
case CTLSTAT_MODE_JSON:
|
|
ctlstat_json(&ctx);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
fprintf(stdout, "\n");
|
|
ctx.flags &= ~CTLSTAT_FLAG_FIRST_RUN;
|
|
if (count != 1)
|
|
sleep(waittime);
|
|
if (count > 0)
|
|
count--;
|
|
}
|
|
|
|
exit (retval);
|
|
}
|
|
|
|
/*
|
|
* vim: ts=8
|
|
*/
|