Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #ifndef _SCSI_SCSI_TCQ_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define _SCSI_SCSI_TCQ_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include <linux/blkdev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include <scsi/scsi_cmnd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <scsi/scsi_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <scsi/scsi_host.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #define SCSI_NO_TAG	(-1)    /* identify no tag in use */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #ifdef CONFIG_BLOCK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  * scsi_host_find_tag - find the tagged command by host
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  * @shost:	pointer to scsi_host
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  * @tag:	tag
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  * Note: for devices using multiple hardware queues tag must have been
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  * generated by blk_mq_unique_tag().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  **/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) static inline struct scsi_cmnd *scsi_host_find_tag(struct Scsi_Host *shost,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 		int tag)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	struct request *req = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	u16 hwq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	if (tag == SCSI_NO_TAG)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 		return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	hwq = blk_mq_unique_tag_to_hwq(tag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	if (hwq < shost->tag_set.nr_hw_queues) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 		req = blk_mq_tag_to_rq(shost->tag_set.tags[hwq],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 					blk_mq_unique_tag_to_tag(tag));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	if (!req || !blk_mq_request_started(req))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 		return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	return blk_mq_rq_to_pdu(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #endif /* CONFIG_BLOCK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #endif /* _SCSI_SCSI_TCQ_H */