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tcm_loop: Implement target reset

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Implement target reset by resetting the transport status.

(nab: Remove unused ret in tcm_loop_target_reset)

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Hannes Reinecke 2013-10-16 09:12:56 +02:00 committed by Nicholas Bellinger
parent 969871cdc2
commit 8f4a1fb0d0
1 changed files with 26 additions and 0 deletions
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26
drivers/target/loopback/tcm_loop.c
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@ -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,