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Commit 94ebb471 authored by Bart Van Assche's avatar Bart Van Assche Committed by Martin K. Petersen
Browse files

scsi: target/core: Add target_send_busy() 



Introduce a function that sends the SCSI status "BUSY" back to the
initiator. The next patch will add a call to this function in the srpt
target driver.

Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Cc: Mike Christie <mchristi@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: default avatarBart Van Assche <bvanassche@acm.org>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 83f85b8e

drivers/target/target_core_transport.c

+16 −0
Original line number Diff line number Diff line
@@ -3246,6 +3246,22 @@ transport_send_check_condition_and_sense(struct se_cmd *cmd, 
}

EXPORT_SYMBOL(transport_send_check_condition_and_sense);



/**

 * target_send_busy - Send SCSI BUSY status back to the initiator

 * @cmd: SCSI command for which to send a BUSY reply.

 *

 * Note: Only call this function if target_submit_cmd*() failed.

 */

int target_send_busy(struct se_cmd *cmd)

{

	WARN_ON_ONCE(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB);



	cmd->scsi_status = SAM_STAT_BUSY;

	trace_target_cmd_complete(cmd);

	return cmd->se_tfo->queue_status(cmd);

}

EXPORT_SYMBOL(target_send_busy);



static void target_tmr_work(struct work_struct *work)

{

	struct se_cmd *cmd = container_of(work, struct se_cmd, work);

include/target/target_core_fabric.h

+1 −0
Original line number Diff line number Diff line
@@ -173,6 +173,7 @@ int transport_generic_free_cmd(struct se_cmd *, int); 
bool	transport_wait_for_tasks(struct se_cmd *);

int	transport_send_check_condition_and_sense(struct se_cmd *,

		sense_reason_t, int);

int	target_send_busy(struct se_cmd *cmd);

int	target_get_sess_cmd(struct se_cmd *, bool);

int	target_put_sess_cmd(struct se_cmd *);

void	target_sess_cmd_list_set_waiting(struct se_session *);