From 94ebb47160085343ecaaeab90fa7ffbb86030613 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Fri, 25 Jan 2019 10:34:47 -0800 Subject: 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: Hannes Reinecke Cc: Nicholas Bellinger Cc: Mike Christie Cc: Christoph Hellwig Signed-off-by: Bart Van Assche Signed-off-by: Martin K. Petersen --- drivers/target/target_core_transport.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'drivers/target') diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 6471ede00336..e3f7e21e6614 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -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); -- cgit v1.2.3