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Commit 8f4a1fb0 authored by Hannes Reinecke's avatar Hannes Reinecke Committed by Nicholas Bellinger
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tcm_loop: Implement target reset 



Implement target reset by resetting the transport status.

(nab: Remove unused ret in tcm_loop_target_reset)

Signed-off-by: default avatarHannes Reinecke <hare@suse.de>
Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
parent 969871cd

drivers/target/loopback/tcm_loop.c

+26 −0
Original line number Diff line number Diff line
@@ -392,6 +392,31 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc) 
	return (ret == TMR_FUNCTION_COMPLETE) ? SUCCESS : FAILED;

}



static int tcm_loop_target_reset(struct scsi_cmnd *sc)

{

	struct tcm_loop_hba *tl_hba;

	struct tcm_loop_tpg *tl_tpg;



	/*

	 * Locate the tcm_loop_hba_t pointer

	 */

	tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host);

	if (!tl_hba) {

		pr_err("Unable to perform device reset without"

				" active I_T Nexus\n");

		return FAILED;

	}

	/*

	 * Locate the tl_tpg pointer from TargetID in sc->device->id

	 */

	tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id];

	if (tl_tpg) {

		tl_tpg->tl_transport_status = TCM_TRANSPORT_ONLINE;

		return SUCCESS;

	}

	return FAILED;

}



static int tcm_loop_slave_alloc(struct scsi_device *sd)

{

	set_bit(QUEUE_FLAG_BIDI, &sd->request_queue->queue_flags);
@@ -421,6 +446,7 @@ static struct scsi_host_template tcm_loop_driver_template = { 
	.change_queue_type	= tcm_loop_change_queue_type,

	.eh_abort_handler = tcm_loop_abort_task,

	.eh_device_reset_handler = tcm_loop_device_reset,

	.eh_target_reset_handler = tcm_loop_target_reset,

	.can_queue		= 1024,

	.this_id		= -1,

	.sg_tablesize		= 256,