Allocate UA "BUS DEVICE RESET OCCURRED" on all LUNs on all
target ports of the device upon reception of TMF LUN RESET.
The patch passes a libiscsi test SCSI.MultipathIO.Reset.
Signed-off-by: Dmitry Bogdanov <d.bogdanov@xxxxxxxxx>
---
drivers/target/target_core_device.c | 19 +++++++++++++++++++
drivers/target/target_core_internal.h | 1 +
drivers/target/target_core_transport.c | 3 +--
3 files changed, 21 insertions(+), 2 deletions(-)
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 2209660261d0..b8ab744783ed 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -284,6 +284,25 @@ void target_pr_kref_release(struct kref *kref)
complete(&deve->pr_comp);
}
+/*
+ * Establish UA condition on SCSI device - all LUNs
+ */
+void target_dev_ua_allocate(struct se_device *dev, u8 asc, u8 ascq)
+{
+ struct se_dev_entry *se_deve;
+ struct se_lun *lun;
+
+ spin_lock(&dev->se_port_lock);
+ list_for_each_entry(lun, &dev->dev_sep_list, lun_dev_link) {
+
+ spin_lock(&lun->lun_deve_lock);
+ list_for_each_entry(se_deve, &lun->lun_deve_list, lun_link)
+ core_scsi3_ua_allocate(se_deve, asc, ascq);
+ spin_unlock(&lun->lun_deve_lock);
+ }
+ spin_unlock(&dev->se_port_lock);
+}
+
static void
target_luns_data_has_changed(struct se_node_acl *nacl, struct se_dev_entry *new,
bool skip_new)
diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h
index d4ace697edb0..4b608a282579 100644
--- a/drivers/target/target_core_internal.h
+++ b/drivers/target/target_core_internal.h
@@ -88,6 +88,7 @@ int target_configure_device(struct se_device *dev);
void target_free_device(struct se_device *);
int target_for_each_device(int (*fn)(struct se_device *dev, void *data),
void *data);
+void target_dev_ua_allocate(struct se_device *dev, u8 asc, u8 ascq);
/* target_core_configfs.c */
extern struct configfs_item_operations target_core_dev_item_ops;
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 7838dc20f713..5926316252eb 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -3531,8 +3531,7 @@ static void target_tmr_work(struct work_struct *work)
tmr->response = (!ret) ? TMR_FUNCTION_COMPLETE :
TMR_FUNCTION_REJECTED;
if (tmr->response == TMR_FUNCTION_COMPLETE) {
- target_ua_allocate_lun(cmd->se_sess->se_node_acl,
- cmd->orig_fe_lun, 0x29,
+ target_dev_ua_allocate(dev, 0x29,
ASCQ_29H_BUS_DEVICE_RESET_FUNCTION_OCCURRED);
}
break;
--
2.25.1
