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| author | Bart Van Assche <bart.vanassche@sandisk.com> | 2017-04-26 23:47:57 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-04-27 00:09:04 +0300 |
| commit | 0eebd005dd07c162e6af053be0ab440dd766b1d5 (patch) | |
| tree | 4531dc9dfaffcc4e09614c76f92436f43ef63bf5 /drivers/scsi/scsi_lib.c | |
| parent | 2836ee4b1acbe7b396219d0677426885f14cd792 (diff) | |
| download | linux-0eebd005dd07c162e6af053be0ab440dd766b1d5.tar.xz | |
scsi: Implement blk_mq_ops.show_rq()
Show the SCSI CDB for pending SCSI commands in
/sys/kernel/debug/block/*/mq/*/dispatch and */rq_list. An example
of how SCSI commands are displayed by this code:
ffff8801703245c0 {.op=READ, .cmd_flags=META PRIO, .rq_flags=DONTPREP IO_STAT STATS, .tag=14, .internal_tag=-1, .cmd=Read(10) 28 00 2a 81 1b 30 00 00 08 00}
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: <linux-scsi@vger.kernel.org>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 4a20e6098f7c..91455dabbfef 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -34,6 +34,7 @@ #include <trace/events/scsi.h> +#include "scsi_debugfs.h" #include "scsi_priv.h" #include "scsi_logging.h" @@ -2157,6 +2158,9 @@ static const struct blk_mq_ops scsi_mq_ops = { .queue_rq = scsi_queue_rq, .complete = scsi_softirq_done, .timeout = scsi_timeout, +#ifdef CONFIG_BLK_DEBUG_FS + .show_rq = scsi_show_rq, +#endif .init_request = scsi_init_request, .exit_request = scsi_exit_request, .map_queues = scsi_map_queues, |