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| author |   Bart Van Assche <bart.vanassche@sandisk.com> | 2017-05-31 14:43:46 -0700 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2017-06-01 13:10:40 -0600 |
| commit | 9efc160f4bbd69b17b48edec53067537d04e62b7 (patch) | |
| tree | fc8bcb323218f1ea0e17825bf0ea77a8e7a48fdd /include/linux | |
| parent | blk-mq-debugfs: Add 'kick' operation (diff) | |
| download | linux-dev-9efc160f4bbd69b17b48edec53067537d04e62b7.tar.xz linux-dev-9efc160f4bbd69b17b48edec53067537d04e62b7.zip | |
block: Introduce queue flag QUEUE_FLAG_SCSI_PASSTHROUGH
From the context where a SCSI command is submitted it is not always
possible to figure out whether or not the queue the command is
submitted to has struct scsi_request as the first member of its
private data. Hence introduce the flag QUEUE_FLAG_SCSI_PASSTHROUGH.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Omar Sandoval <osandov@fb.com>
Cc: Don Brace <don.brace@microsemi.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to '')
| -rw-r--r-- | include/linux/blkdev.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index ab92c4ea138b..019f18c65098 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -618,6 +618,7 @@ struct request_queue { #define QUEUE_FLAG_STATS 27 /* track rq completion times */ #define QUEUE_FLAG_POLL_STATS 28 /* collecting stats for hybrid polling */ #define QUEUE_FLAG_REGISTERED 29 /* queue has been registered to a disk */ +#define QUEUE_FLAG_SCSI_PASSTHROUGH 30 /* queue supports SCSI commands */ #define QUEUE_FLAG_DEFAULT ((1 << QUEUE_FLAG_IO_STAT) | \ (1 << QUEUE_FLAG_STACKABLE) | \ @@ -708,6 +709,8 @@ static inline void queue_flag_clear(unsigned int flag, struct request_queue *q) #define blk_queue_secure_erase(q) \ (test_bit(QUEUE_FLAG_SECERASE, &(q)->queue_flags)) #define blk_queue_dax(q) test_bit(QUEUE_FLAG_DAX, &(q)->queue_flags) +#define blk_queue_scsi_passthrough(q) \ + test_bit(QUEUE_FLAG_SCSI_PASSTHROUGH, &(q)->queue_flags) #define blk_noretry_request(rq) \ ((rq)->cmd_flags & (REQ_FAILFAST_DEV|REQ_FAILFAST_TRANSPORT| \ |