Merging upstream version 6.7.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

18 files changed, 164 insertions, 102 deletions

diff --git a/drivers/target/iscsi/Kconfig b/drivers/target/iscsi/Kconfig
index 922484ea4e..922b207bc6 100644
--- a/drivers/target/iscsi/Kconfig
+++ b/drivers/target/iscsi/Kconfig
@@ -1,12 +1,15 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config ISCSI_TARGET
-	tristate "Linux-iSCSI.org iSCSI Target Mode Stack"
+	tristate "SCSI Target Mode Stack"
 	depends on INET
 	select CRYPTO
 	select CRYPTO_CRC32C
 	select CRYPTO_CRC32C_INTEL if X86
 	help
-	Say M here to enable the ConfigFS enabled Linux-iSCSI.org iSCSI
-	Target Mode Stack.
+	Say M to enable the SCSI target mode stack. A SCSI target mode stack
+	is software that makes local storage available over a storage network
+	to a SCSI initiator system. The supported storage network technologies
+	include iSCSI, Fibre Channel and the SCSI RDMA Protocol (SRP).
+	Configuration of the SCSI target mode stack happens through configfs.
 
 source	"drivers/target/iscsi/cxgbit/Kconfig"
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index b516c28934..1d25e64b06 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1234,12 +1234,6 @@ attach_cmd:
 	spin_lock_bh(&conn->cmd_lock);
 	list_add_tail(&cmd->i_conn_node, &conn->conn_cmd_list);
 	spin_unlock_bh(&conn->cmd_lock);
-	/*
-	 * Check if we need to delay processing because of ALUA
-	 * Active/NonOptimized primary access state..
-	 */
-	core_alua_check_nonop_delay(&cmd->se_cmd);
-
 	return 0;
 }
 EXPORT_SYMBOL(iscsit_setup_scsi_cmd);
diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index 1cff6052e8..88db94f382 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -1589,5 +1589,8 @@ const struct target_core_fabric_ops iscsi_ops = {
 	.tfc_tpg_nacl_auth_attrs	= lio_target_nacl_auth_attrs,
 	.tfc_tpg_nacl_param_attrs	= lio_target_nacl_param_attrs,
 
-	.write_pending_must_be_called	= true,
+	.write_pending_must_be_called	= 1,
+
+	.default_submit_type		= TARGET_DIRECT_SUBMIT,
+	.direct_submit_supp		= 1,
 };
diff --git a/drivers/target/iscsi/iscsi_target_erl1.c b/drivers/target/iscsi/iscsi_target_erl1.c
index f460a66c0e..6797200211 100644
--- a/drivers/target/iscsi/iscsi_target_erl1.c
+++ b/drivers/target/iscsi/iscsi_target_erl1.c
@@ -948,7 +948,7 @@ int iscsit_execute_cmd(struct iscsit_cmd *cmd, int ooo)
 
 			iscsit_set_unsolicited_dataout(cmd);
 		}
-		return transport_handle_cdb_direct(&cmd->se_cmd);
+		return target_submit(&cmd->se_cmd);
 
 	case ISCSI_OP_NOOP_OUT:
 	case ISCSI_OP_TEXT:
diff --git a/drivers/target/iscsi/iscsi_target_tmr.c b/drivers/target/iscsi/iscsi_target_tmr.c
index afc801f255..9c4aa01b63 100644
--- a/drivers/target/iscsi/iscsi_target_tmr.c
+++ b/drivers/target/iscsi/iscsi_target_tmr.c
@@ -318,7 +318,7 @@ static int iscsit_task_reassign_complete_read(
 		pr_debug("READ ITT: 0x%08x: t_state: %d never sent to"
 			" transport\n", cmd->init_task_tag,
 			cmd->se_cmd.t_state);
-		transport_handle_cdb_direct(se_cmd);
+		target_submit(se_cmd);
 		return 0;
 	}
 
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 4ec99a55ac..8e4035ff36 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -154,7 +154,7 @@ static void tcm_loop_target_queue_cmd(struct tcm_loop_cmd *tl_cmd)
 			       GFP_ATOMIC))
 		return;
 
-	target_queue_submission(se_cmd);
+	target_submit(se_cmd);
 	return;
 
 out_done:
@@ -1102,6 +1102,8 @@ static const struct target_core_fabric_ops loop_ops = {
 	.tfc_wwn_attrs			= tcm_loop_wwn_attrs,
 	.tfc_tpg_base_attrs		= tcm_loop_tpg_attrs,
 	.tfc_tpg_attrib_attrs		= tcm_loop_tpg_attrib_attrs,
+	.default_submit_type		= TARGET_QUEUE_SUBMIT,
+	.direct_submit_supp		= 0,
 };
 
 static int __init tcm_loop_fabric_init(void)
diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c
index 2a761bc091..b604fcae21 100644
--- a/drivers/target/sbp/sbp_target.c
+++ b/drivers/target/sbp/sbp_target.c
@@ -2278,6 +2278,9 @@ static const struct target_core_fabric_ops sbp_ops = {
 	.tfc_wwn_attrs			= sbp_wwn_attrs,
 	.tfc_tpg_base_attrs		= sbp_tpg_base_attrs,
 	.tfc_tpg_attrib_attrs		= sbp_tpg_attrib_attrs,
+
+	.default_submit_type		= TARGET_DIRECT_SUBMIT,
+	.direct_submit_supp		= 1,
 };
 
 static int __init sbp_init(void)
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index 3372856319..01751faad3 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -850,7 +850,6 @@ int core_alua_check_nonop_delay(
 	msleep_interruptible(cmd->alua_nonop_delay);
 	return 0;
 }
-EXPORT_SYMBOL(core_alua_check_nonop_delay);
 
 static int core_alua_write_tpg_metadata(
 	const char *path,
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index d5860c1c1f..a5f5898813 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -577,6 +577,7 @@ DEF_CONFIGFS_ATTRIB_SHOW(unmap_granularity_alignment);
 DEF_CONFIGFS_ATTRIB_SHOW(unmap_zeroes_data);
 DEF_CONFIGFS_ATTRIB_SHOW(max_write_same_len);
 DEF_CONFIGFS_ATTRIB_SHOW(emulate_rsoc);
+DEF_CONFIGFS_ATTRIB_SHOW(submit_type);
 
 #define DEF_CONFIGFS_ATTRIB_STORE_U32(_name)				\
 static ssize_t _name##_store(struct config_item *item, const char *page,\
@@ -1231,6 +1232,24 @@ static ssize_t emulate_rsoc_store(struct config_item *item,
 	return count;
 }
 
+static ssize_t submit_type_store(struct config_item *item, const char *page,
+				 size_t count)
+{
+	struct se_dev_attrib *da = to_attrib(item);
+	int ret;
+	u8 val;
+
+	ret = kstrtou8(page, 0, &val);
+	if (ret < 0)
+		return ret;
+
+	if (val > TARGET_QUEUE_SUBMIT)
+		return -EINVAL;
+
+	da->submit_type = val;
+	return count;
+}
+
 CONFIGFS_ATTR(, emulate_model_alias);
 CONFIGFS_ATTR(, emulate_dpo);
 CONFIGFS_ATTR(, emulate_fua_write);
@@ -1266,6 +1285,7 @@ CONFIGFS_ATTR(, unmap_zeroes_data);
 CONFIGFS_ATTR(, max_write_same_len);
 CONFIGFS_ATTR(, alua_support);
 CONFIGFS_ATTR(, pgr_support);
+CONFIGFS_ATTR(, submit_type);
 
 /*
  * dev_attrib attributes for devices using the target core SBC/SPC
@@ -1308,6 +1328,7 @@ struct configfs_attribute *sbc_attrib_attrs[] = {
 	&attr_alua_support,
 	&attr_pgr_support,
 	&attr_emulate_rsoc,
+	&attr_submit_type,
 	NULL,
 };
 EXPORT_SYMBOL(sbc_attrib_attrs);
@@ -1325,6 +1346,7 @@ struct configfs_attribute *passthrough_attrib_attrs[] = {
 	&attr_emulate_pr,
 	&attr_alua_support,
 	&attr_pgr_support,
+	&attr_submit_type,
 	NULL,
 };
 EXPORT_SYMBOL(passthrough_attrib_attrs);
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index b6523d4b92..7a85e6477e 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -147,7 +147,6 @@ int transport_lookup_tmr_lun(struct se_cmd *se_cmd)
 	struct se_session *se_sess = se_cmd->se_sess;
 	struct se_node_acl *nacl = se_sess->se_node_acl;
 	struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
-	unsigned long flags;
 
 	rcu_read_lock();
 	deve = target_nacl_find_deve(nacl, se_cmd->orig_fe_lun);
@@ -178,10 +177,6 @@ out_unlock:
 	se_cmd->se_dev = rcu_dereference_raw(se_lun->lun_se_dev);
 	se_tmr->tmr_dev = rcu_dereference_raw(se_lun->lun_se_dev);
 
-	spin_lock_irqsave(&se_tmr->tmr_dev->se_tmr_lock, flags);
-	list_add_tail(&se_tmr->tmr_list, &se_tmr->tmr_dev->dev_tmr_list);
-	spin_unlock_irqrestore(&se_tmr->tmr_dev->se_tmr_lock, flags);
-
 	return 0;
 }
 EXPORT_SYMBOL(transport_lookup_tmr_lun);
@@ -779,6 +774,7 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
 	dev->dev_attrib.unmap_zeroes_data =
 				DA_UNMAP_ZEROES_DATA_DEFAULT;
 	dev->dev_attrib.max_write_same_len = DA_MAX_WRITE_SAME_LEN;
+	dev->dev_attrib.submit_type = TARGET_FABRIC_DEFAULT_SUBMIT;
 
 	xcopy_lun = &dev->xcopy_lun;
 	rcu_assign_pointer(xcopy_lun->lun_se_dev, dev);
diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c
index b7c637644c..7156a4dc1c 100644
--- a/drivers/target/target_core_fabric_configfs.c
+++ b/drivers/target/target_core_fabric_configfs.c
@@ -1065,8 +1065,32 @@ target_fabric_wwn_cmd_completion_affinity_store(struct config_item *item,
 }
 CONFIGFS_ATTR(target_fabric_wwn_, cmd_completion_affinity);
 
+static ssize_t
+target_fabric_wwn_default_submit_type_show(struct config_item *item,
+					   char *page)
+{
+	struct se_wwn *wwn = container_of(to_config_group(item), struct se_wwn,
+					  param_group);
+	return sysfs_emit(page, "%u\n",
+			  wwn->wwn_tf->tf_ops->default_submit_type);
+}
+CONFIGFS_ATTR_RO(target_fabric_wwn_, default_submit_type);
+
+static ssize_t
+target_fabric_wwn_direct_submit_supported_show(struct config_item *item,
+					       char *page)
+{
+	struct se_wwn *wwn = container_of(to_config_group(item), struct se_wwn,
+					  param_group);
+	return sysfs_emit(page, "%u\n",
+			  wwn->wwn_tf->tf_ops->direct_submit_supp);
+}
+CONFIGFS_ATTR_RO(target_fabric_wwn_, direct_submit_supported);
+
 static struct configfs_attribute *target_fabric_wwn_param_attrs[] = {
 	&target_fabric_wwn_attr_cmd_completion_affinity,
+	&target_fabric_wwn_attr_default_submit_type,
+	&target_fabric_wwn_attr_direct_submit_supported,
 	NULL,
 };
 
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index a6a06a5f74..8eb9eb7ce5 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -91,7 +91,8 @@ static int iblock_configure_device(struct se_device *dev)
 {
 	struct iblock_dev *ib_dev = IBLOCK_DEV(dev);
 	struct request_queue *q;
-	struct block_device *bd = NULL;
+	struct bdev_handle *bdev_handle;
+	struct block_device *bd;
 	struct blk_integrity *bi;
 	blk_mode_t mode = BLK_OPEN_READ;
 	unsigned int max_write_zeroes_sectors;
@@ -116,12 +117,14 @@ static int iblock_configure_device(struct se_device *dev)
 	else
 		dev->dev_flags |= DF_READ_ONLY;
 
-	bd = blkdev_get_by_path(ib_dev->ibd_udev_path, mode, ib_dev, NULL);
-	if (IS_ERR(bd)) {
-		ret = PTR_ERR(bd);
+	bdev_handle = bdev_open_by_path(ib_dev->ibd_udev_path, mode, ib_dev,
+					NULL);
+	if (IS_ERR(bdev_handle)) {
+		ret = PTR_ERR(bdev_handle);
 		goto out_free_bioset;
 	}
-	ib_dev->ibd_bd = bd;
+	ib_dev->ibd_bdev_handle = bdev_handle;
+	ib_dev->ibd_bd = bd = bdev_handle->bdev;
 
 	q = bdev_get_queue(bd);
 
@@ -177,7 +180,7 @@ static int iblock_configure_device(struct se_device *dev)
 	return 0;
 
 out_blkdev_put:
-	blkdev_put(ib_dev->ibd_bd, ib_dev);
+	bdev_release(ib_dev->ibd_bdev_handle);
 out_free_bioset:
 	bioset_exit(&ib_dev->ibd_bio_set);
 out:
@@ -202,8 +205,8 @@ static void iblock_destroy_device(struct se_device *dev)
 {
 	struct iblock_dev *ib_dev = IBLOCK_DEV(dev);
 
-	if (ib_dev->ibd_bd != NULL)
-		blkdev_put(ib_dev->ibd_bd, ib_dev);
+	if (ib_dev->ibd_bdev_handle)
+		bdev_release(ib_dev->ibd_bdev_handle);
 	bioset_exit(&ib_dev->ibd_bio_set);
 }
 
diff --git a/drivers/target/target_core_iblock.h b/drivers/target/target_core_iblock.h
index 8c55375d2f..683f9a5594 100644
--- a/drivers/target/target_core_iblock.h
+++ b/drivers/target/target_core_iblock.h
@@ -32,6 +32,7 @@ struct iblock_dev {
 	u32	ibd_flags;
 	struct bio_set	ibd_bio_set;
 	struct block_device *ibd_bd;
+	struct bdev_handle *ibd_bdev_handle;
 	bool ibd_readonly;
 	struct iblock_dev_plug *ibd_plug;
 } ____cacheline_aligned;
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 0d4f09693e..ed4fd22eac 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -352,7 +352,7 @@ static int pscsi_create_type_disk(struct se_device *dev, struct scsi_device *sd)
 	struct pscsi_hba_virt *phv = dev->se_hba->hba_ptr;
 	struct pscsi_dev_virt *pdv = PSCSI_DEV(dev);
 	struct Scsi_Host *sh = sd->host;
-	struct block_device *bd;
+	struct bdev_handle *bdev_handle;
 	int ret;
 
 	if (scsi_device_get(sd)) {
@@ -366,18 +366,18 @@ static int pscsi_create_type_disk(struct se_device *dev, struct scsi_device *sd)
 	 * Claim exclusive struct block_device access to struct scsi_device
 	 * for TYPE_DISK and TYPE_ZBC using supplied udev_path
 	 */
-	bd = blkdev_get_by_path(dev->udev_path, BLK_OPEN_WRITE | BLK_OPEN_READ,
-				pdv, NULL);
-	if (IS_ERR(bd)) {
-		pr_err("pSCSI: blkdev_get_by_path() failed\n");
+	bdev_handle = bdev_open_by_path(dev->udev_path,
+				BLK_OPEN_WRITE | BLK_OPEN_READ, pdv, NULL);
+	if (IS_ERR(bdev_handle)) {
+		pr_err("pSCSI: bdev_open_by_path() failed\n");
 		scsi_device_put(sd);
-		return PTR_ERR(bd);
+		return PTR_ERR(bdev_handle);
 	}
-	pdv->pdv_bd = bd;
+	pdv->pdv_bdev_handle = bdev_handle;
 
 	ret = pscsi_add_device_to_list(dev, sd);
 	if (ret) {
-		blkdev_put(pdv->pdv_bd, pdv);
+		bdev_release(bdev_handle);
 		scsi_device_put(sd);
 		return ret;
 	}
@@ -564,9 +564,9 @@ static void pscsi_destroy_device(struct se_device *dev)
 		 * from pscsi_create_type_disk()
 		 */
 		if ((sd->type == TYPE_DISK || sd->type == TYPE_ZBC) &&
-		    pdv->pdv_bd) {
-			blkdev_put(pdv->pdv_bd, pdv);
-			pdv->pdv_bd = NULL;
+		    pdv->pdv_bdev_handle) {
+			bdev_release(pdv->pdv_bdev_handle);
+			pdv->pdv_bdev_handle = NULL;
 		}
 		/*
 		 * For HBA mode PHV_LLD_SCSI_HOST_NO, release the reference
@@ -907,12 +907,15 @@ new_bio:
 
 	return 0;
 fail:
-	if (bio)
-		bio_put(bio);
+	if (bio) {
+		bio_uninit(bio);
+		kfree(bio);
+	}
 	while (req->bio) {
 		bio = req->bio;
 		req->bio = bio->bi_next;
-		bio_put(bio);
+		bio_uninit(bio);
+		kfree(bio);
 	}
 	req->biotail = NULL;
 	return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
@@ -994,8 +997,8 @@ static sector_t pscsi_get_blocks(struct se_device *dev)
 {
 	struct pscsi_dev_virt *pdv = PSCSI_DEV(dev);
 
-	if (pdv->pdv_bd)
-		return bdev_nr_sectors(pdv->pdv_bd);
+	if (pdv->pdv_bdev_handle)
+		return bdev_nr_sectors(pdv->pdv_bdev_handle->bdev);
 	return 0;
 }
 
diff --git a/drivers/target/target_core_pscsi.h b/drivers/target/target_core_pscsi.h
index 23d9a6e340..b0a3ef1365 100644
--- a/drivers/target/target_core_pscsi.h
+++ b/drivers/target/target_core_pscsi.h
@@ -37,7 +37,7 @@ struct pscsi_dev_virt {
 	int	pdv_channel_id;
 	int	pdv_target_id;
 	int	pdv_lun_id;
-	struct block_device *pdv_bd;
+	struct bdev_handle *pdv_bdev_handle;
 	struct scsi_device *pdv_sd;
 	struct Scsi_Host *pdv_lld_host;
 } ____cacheline_aligned;
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 0686882bcb..73d0d6133a 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -1576,17 +1576,39 @@ target_cmd_parse_cdb(struct se_cmd *cmd)
 }
 EXPORT_SYMBOL(target_cmd_parse_cdb);
 
-/*
- * Used by fabric module frontends to queue tasks directly.
- * May only be used from process context.
- */
-int transport_handle_cdb_direct(
-	struct se_cmd *cmd)
+static int __target_submit(struct se_cmd *cmd)
 {
 	sense_reason_t ret;
 
 	might_sleep();
 
+	/*
+	 * Check if we need to delay processing because of ALUA
+	 * Active/NonOptimized primary access state..
+	 */
+	core_alua_check_nonop_delay(cmd);
+
+	if (cmd->t_data_nents != 0) {
+		/*
+		 * This is primarily a hack for udev and tcm loop which sends
+		 * INQUIRYs with a single page and expects the data to be
+		 * cleared.
+		 */
+		if (!(cmd->se_cmd_flags & SCF_SCSI_DATA_CDB) &&
+		    cmd->data_direction == DMA_FROM_DEVICE) {
+			struct scatterlist *sgl = cmd->t_data_sg;
+			unsigned char *buf = NULL;
+
+			BUG_ON(!sgl);
+
+			buf = kmap_local_page(sg_page(sgl));
+			if (buf) {
+				memset(buf + sgl->offset, 0, sgl->length);
+				kunmap_local(buf);
+			}
+		}
+	}
+
 	if (!cmd->se_lun) {
 		dump_stack();
 		pr_err("cmd->se_lun is NULL\n");
@@ -1614,7 +1636,6 @@ int transport_handle_cdb_direct(
 		transport_generic_request_failure(cmd, ret);
 	return 0;
 }
-EXPORT_SYMBOL(transport_handle_cdb_direct);
 
 sense_reason_t
 transport_generic_map_mem_to_cmd(struct se_cmd *cmd, struct scatterlist *sgl,
@@ -1782,53 +1803,6 @@ generic_fail:
 EXPORT_SYMBOL_GPL(target_submit_prep);
 
 /**
- * target_submit - perform final initialization and submit cmd to LIO core
- * @se_cmd: command descriptor to submit
- *
- * target_submit_prep must have been called on the cmd, and this must be
- * called from process context.
- */
-void target_submit(struct se_cmd *se_cmd)
-{
-	struct scatterlist *sgl = se_cmd->t_data_sg;
-	unsigned char *buf = NULL;
-
-	might_sleep();
-
-	if (se_cmd->t_data_nents != 0) {
-		BUG_ON(!sgl);
-		/*
-		 * A work-around for tcm_loop as some userspace code via
-		 * scsi-generic do not memset their associated read buffers,
-		 * so go ahead and do that here for type non-data CDBs.  Also
-		 * note that this is currently guaranteed to be a single SGL
-		 * for this case by target core in target_setup_cmd_from_cdb()
-		 * -> transport_generic_cmd_sequencer().
-		 */
-		if (!(se_cmd->se_cmd_flags & SCF_SCSI_DATA_CDB) &&
-		     se_cmd->data_direction == DMA_FROM_DEVICE) {
-			if (sgl)
-				buf = kmap(sg_page(sgl)) + sgl->offset;
-
-			if (buf) {
-				memset(buf, 0, sgl->length);
-				kunmap(sg_page(sgl));
-			}
-		}
-
-	}
-
-	/*
-	 * Check if we need to delay processing because of ALUA
-	 * Active/NonOptimized primary access state..
-	 */
-	core_alua_check_nonop_delay(se_cmd);
-
-	transport_handle_cdb_direct(se_cmd);
-}
-EXPORT_SYMBOL_GPL(target_submit);
-
-/**
  * target_submit_cmd - lookup unpacked lun and submit uninitialized se_cmd
  *
  * @se_cmd: command descriptor to submit
@@ -1923,7 +1897,7 @@ void target_queued_submit_work(struct work_struct *work)
 			se_plug = target_plug_device(se_dev);
 		}
 
-		target_submit(se_cmd);
+		__target_submit(se_cmd);
 	}
 
 	if (se_plug)
@@ -1934,7 +1908,7 @@ void target_queued_submit_work(struct work_struct *work)
  * target_queue_submission - queue the cmd to run on the LIO workqueue
  * @se_cmd: command descriptor to submit
  */
-void target_queue_submission(struct se_cmd *se_cmd)
+static void target_queue_submission(struct se_cmd *se_cmd)
 {
 	struct se_device *se_dev = se_cmd->se_dev;
 	int cpu = se_cmd->cpuid;
@@ -1944,7 +1918,35 @@ void target_queue_submission(struct se_cmd *se_cmd)
 	llist_add(&se_cmd->se_cmd_list, &sq->cmd_list);
 	queue_work_on(cpu, target_submission_wq, &sq->work);
 }
-EXPORT_SYMBOL_GPL(target_queue_submission);
+
+/**
+ * target_submit - perform final initialization and submit cmd to LIO core
+ * @se_cmd: command descriptor to submit
+ *
+ * target_submit_prep or something similar must have been called on the cmd,
+ * and this must be called from process context.
+ */
+int target_submit(struct se_cmd *se_cmd)
+{
+	const struct target_core_fabric_ops *tfo = se_cmd->se_sess->se_tpg->se_tpg_tfo;
+	struct se_dev_attrib *da = &se_cmd->se_dev->dev_attrib;
+	u8 submit_type;
+
+	if (da->submit_type == TARGET_FABRIC_DEFAULT_SUBMIT)
+		submit_type = tfo->default_submit_type;
+	else if (da->submit_type == TARGET_DIRECT_SUBMIT &&
+		 tfo->direct_submit_supp)
+		submit_type = TARGET_DIRECT_SUBMIT;
+	else
+		submit_type = TARGET_QUEUE_SUBMIT;
+
+	if (submit_type == TARGET_DIRECT_SUBMIT)
+		return __target_submit(se_cmd);
+
+	target_queue_submission(se_cmd);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(target_submit);
 
 static void target_complete_tmr_failure(struct work_struct *work)
 {
@@ -3627,6 +3629,10 @@ int transport_generic_handle_tmr(
 	unsigned long flags;
 	bool aborted = false;
 
+	spin_lock_irqsave(&cmd->se_dev->se_tmr_lock, flags);
+	list_add_tail(&cmd->se_tmr_req->tmr_list, &cmd->se_dev->dev_tmr_list);
+	spin_unlock_irqrestore(&cmd->se_dev->se_tmr_lock, flags);
+
 	spin_lock_irqsave(&cmd->t_state_lock, flags);
 	if (cmd->transport_state & CMD_T_ABORTED) {
 		aborted = true;
diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index 22cc6cac0b..7eb94894bd 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -201,7 +201,7 @@ struct tcmu_tmr {
 
 	uint8_t tmr_type;
 	uint32_t tmr_cmd_cnt;
-	int16_t tmr_cmd_ids[];
+	int16_t tmr_cmd_ids[] __counted_by(tmr_cmd_cnt);
 };
 
 /*
diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c
index 6ac3fc1a7d..5ee03d1cba 100644
--- a/drivers/target/tcm_fc/tfc_conf.c
+++ b/drivers/target/tcm_fc/tfc_conf.c
@@ -432,6 +432,9 @@ static const struct target_core_fabric_ops ft_fabric_ops = {
 
 	.tfc_wwn_attrs			= ft_wwn_attrs,
 	.tfc_tpg_nacl_base_attrs	= ft_nacl_base_attrs,
+
+	.default_submit_type		= TARGET_DIRECT_SUBMIT,
+	.direct_submit_supp		= 1,
 };
 
 static struct notifier_block ft_notifier = {