target: Core cleanups from AGrover (round 1)

This patch contains the squashed version of a number of cleanups and
minor fixes from Andy's initial series (round 1) for target core this
past spring.  The condensed log looks like:

target: use errno values instead of returning -1 for everything
target: Rename transport_calc_sg_num to transport_init_task_sg
target: Fix leak in error path in transport_init_task_sg
target/pscsi: Remove pscsi_get_sh() usage
target: Make two runtime checks into WARN_ONs
target: Remove hba queue depth and convert to spin_lock_irq usage
target: dev->dev_status_queue_obj is unused
target: Make struct se_queue_req.cmd type struct se_cmd *
target: Remove __transport_get_qr_from_queue()
target: Rename se_dev->g_se_dev_list to se_dev_node
target: Remove struct se_global
target: Simplify scsi mib index table code
target: Make dev_queue_obj a member of se_device instead of a pointer
target: remove extraneous returns at end of void functions
target: Ensure transport_dump_vpd_ident_type returns null-terminated str
target: Function pointers don't need to use '&' to be assigned
target: Fix comment in __transport_execute_tasks()
target: Misc style cleanups
target: rename struct pr_reservation_template to pr_reservation
target: Remove #defines that just perform indirection
target: Inline transport_get_task_from_execute_queue()
target: Minor header comment fixes
Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

drivers/target/loopback/tcm_loop.c

@@ -118,7 +118,7 @@ static struct se_cmd *tcm_loop_allocate_core_cmd(
 	 * Signal BIDI usage with T_TASK(cmd)->t_tasks_bidi
 	 */
 	if (scsi_bidi_cmnd(sc))
-		T_TASK(se_cmd)->t_tasks_bidi = 1;
+		se_cmd->t_task->t_tasks_bidi = 1;
 	/*
 	 * Locate the struct se_lun pointer and attach it to struct se_cmd
 	 */
@@ -176,7 +176,7 @@ static int tcm_loop_new_cmd_map(struct se_cmd *se_cmd)
 		 * For BIDI commands, pass in the extra READ buffer
 		 * to transport_generic_map_mem_to_cmd() below..
 		 */
-		if (T_TASK(se_cmd)->t_tasks_bidi) {
+		if (se_cmd->t_task->t_tasks_bidi) {
 			struct scsi_data_buffer *sdb = scsi_in(sc);
 
 			mem_bidi_ptr = (void *)sdb->table.sgl;
@@ -1402,9 +1402,9 @@ static int tcm_loop_register_configfs(void)
 	 * Register the top level struct config_item_type with TCM core
 	 */
 	fabric = target_fabric_configfs_init(THIS_MODULE, "loopback");
-	if (!fabric) {
+	if (IS_ERR(fabric)) {
 		printk(KERN_ERR "tcm_loop_register_configfs() failed!\n");
-		return -1;
+		return PTR_ERR(fabric);
 	}
 	/*
 	 * Setup the fabric API of function pointers used by target_core_mod

drivers/target/target_core_fabric_configfs.c

@@ -118,7 +118,7 @@ static int target_fabric_mappedlun_link(
 		lun_access = deve->lun_flags;
 	else
 		lun_access =
-			(TPG_TFO(se_tpg)->tpg_check_prod_mode_write_protect(
+			(se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect(
 				se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY :
 					   TRANSPORT_LUNFLAGS_READ_WRITE;
 	spin_unlock_irq(&lacl->se_lun_nacl->device_list_lock);
@@ -204,7 +204,7 @@ static ssize_t target_fabric_mappedlun_store_write_protect(
 
 	printk(KERN_INFO "%s_ConfigFS: Changed Initiator ACL: %s"
 		" Mapped LUN: %u Write Protect bit to %s\n",
-		TPG_TFO(se_tpg)->get_fabric_name(),
+		se_tpg->se_tpg_tfo->get_fabric_name(),
 		lacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF");
 
 	return count;
@@ -379,7 +379,7 @@ static struct config_group *target_fabric_make_mappedlun(
 	lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group;
 	lacl_cg->default_groups[1] = NULL;
 
-	ml_stat_grp = &ML_STAT_GRPS(lacl)->stat_group;
+	ml_stat_grp = &lacl->ml_stat_grps.stat_group;
 	ml_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3,
 				GFP_KERNEL);
 	if (!ml_stat_grp->default_groups) {
@@ -408,7 +408,7 @@ static void target_fabric_drop_mappedlun(
 	struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL;
 	int i;
 
-	ml_stat_grp = &ML_STAT_GRPS(lacl)->stat_group;
+	ml_stat_grp = &lacl->ml_stat_grps.stat_group;
 	for (i = 0; ml_stat_grp->default_groups[i]; i++) {
 		df_item = &ml_stat_grp->default_groups[i]->cg_item;
 		ml_stat_grp->default_groups[i] = NULL;
@@ -914,7 +914,7 @@ static struct config_group *target_fabric_make_lun(
 	lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group;
 	lun_cg->default_groups[1] = NULL;
 
-	port_stat_grp = &PORT_STAT_GRP(lun)->stat_group;
+	port_stat_grp = &lun->port_stat_grps.stat_group;
 	port_stat_grp->default_groups =  kzalloc(sizeof(struct config_group) * 3,
 				GFP_KERNEL);
 	if (!port_stat_grp->default_groups) {
@@ -941,7 +941,7 @@ static void target_fabric_drop_lun(
 	struct config_group *lun_cg, *port_stat_grp;
 	int i;
 
-	port_stat_grp = &PORT_STAT_GRP(lun)->stat_group;
+	port_stat_grp = &lun->port_stat_grps.stat_group;
 	for (i = 0; port_stat_grp->default_groups[i]; i++) {
 		df_item = &port_stat_grp->default_groups[i]->cg_item;
 		port_stat_grp->default_groups[i] = NULL;

drivers/target/target_core_file.c

@@ -67,22 +67,19 @@ static int fd_attach_hba(struct se_hba *hba, u32 host_id)
 	fd_host = kzalloc(sizeof(struct fd_host), GFP_KERNEL);
 	if (!(fd_host)) {
 		printk(KERN_ERR "Unable to allocate memory for struct fd_host\n");
-		return -1;
+		return -ENOMEM;
 	}
 
 	fd_host->fd_host_id = host_id;
 
-	atomic_set(&hba->left_queue_depth, FD_HBA_QUEUE_DEPTH);
-	atomic_set(&hba->max_queue_depth, FD_HBA_QUEUE_DEPTH);
-	hba->hba_ptr = (void *) fd_host;
+	hba->hba_ptr = fd_host;
 
 	printk(KERN_INFO "CORE_HBA[%d] - TCM FILEIO HBA Driver %s on Generic"
 		" Target Core Stack %s\n", hba->hba_id, FD_VERSION,
 		TARGET_CORE_MOD_VERSION);
 	printk(KERN_INFO "CORE_HBA[%d] - Attached FILEIO HBA: %u to Generic"
-		" Target Core with TCQ Depth: %d MaxSectors: %u\n",
-		hba->hba_id, fd_host->fd_host_id,
-		atomic_read(&hba->max_queue_depth), FD_MAX_SECTORS);
+		" MaxSectors: %u\n",
+		hba->hba_id, fd_host->fd_host_id, FD_MAX_SECTORS);
 
 	return 0;
 }
@@ -282,7 +279,7 @@ fd_alloc_task(struct se_cmd *cmd)
 		return NULL;
 	}
 
-	fd_req->fd_dev = SE_DEV(cmd)->dev_ptr;
+	fd_req->fd_dev = cmd->se_lun->lun_se_dev->dev_ptr;
 
 	return &fd_req->fd_task;
 }
@@ -294,13 +291,14 @@ static int fd_do_readv(struct se_task *task)
 	struct scatterlist *sg = task->task_sg;
 	struct iovec *iov;
 	mm_segment_t old_fs;
-	loff_t pos = (task->task_lba * DEV_ATTRIB(task->se_dev)->block_size);
+	loff_t pos = (task->task_lba *
+		      task->se_dev->se_sub_dev->se_dev_attrib.block_size);
 	int ret = 0, i;
 
 	iov = kzalloc(sizeof(struct iovec) * task->task_sg_num, GFP_KERNEL);
 	if (!(iov)) {
 		printk(KERN_ERR "Unable to allocate fd_do_readv iov[]\n");
-		return -1;
+		return -ENOMEM;
 	}
 
 	for (i = 0; i < task->task_sg_num; i++) {
@@ -324,13 +322,13 @@ static int fd_do_readv(struct se_task *task)
 			printk(KERN_ERR "vfs_readv() returned %d,"
 				" expecting %d for S_ISBLK\n", ret,
 				(int)task->task_size);
-			return -1;
+			return (ret < 0 ? ret : -EINVAL);
 		}
 	} else {
 		if (ret < 0) {
 			printk(KERN_ERR "vfs_readv() returned %d for non"
 				" S_ISBLK\n", ret);
-			return -1;
+			return ret;
 		}
 	}
 
@@ -344,13 +342,14 @@ static int fd_do_writev(struct se_task *task)
 	struct scatterlist *sg = task->task_sg;
 	struct iovec *iov;
 	mm_segment_t old_fs;
-	loff_t pos = (task->task_lba * DEV_ATTRIB(task->se_dev)->block_size);
+	loff_t pos = (task->task_lba *
+		      task->se_dev->se_sub_dev->se_dev_attrib.block_size);
 	int ret, i = 0;
 
 	iov = kzalloc(sizeof(struct iovec) * task->task_sg_num, GFP_KERNEL);
 	if (!(iov)) {
 		printk(KERN_ERR "Unable to allocate fd_do_writev iov[]\n");
-		return -1;
+		return -ENOMEM;
 	}
 
 	for (i = 0; i < task->task_sg_num; i++) {
@@ -367,7 +366,7 @@ static int fd_do_writev(struct se_task *task)
 
 	if (ret < 0 || ret != task->task_size) {
 		printk(KERN_ERR "vfs_writev() returned %d\n", ret);
-		return -1;
+		return (ret < 0 ? ret : -EINVAL);
 	}
 
 	return 1;
@@ -375,7 +374,7 @@ static int fd_do_writev(struct se_task *task)
 
 static void fd_emulate_sync_cache(struct se_task *task)
 {
-	struct se_cmd *cmd = TASK_CMD(task);
+	struct se_cmd *cmd = task->task_se_cmd;
 	struct se_device *dev = cmd->se_dev;
 	struct fd_dev *fd_dev = dev->dev_ptr;
 	int immed = (cmd->t_task->t_task_cdb[1] & 0x2);
@@ -396,7 +395,7 @@ static void fd_emulate_sync_cache(struct se_task *task)
 		start = 0;
 		end = LLONG_MAX;
 	} else {
-		start = cmd->t_task->t_task_lba * DEV_ATTRIB(dev)->block_size;
+		start = cmd->t_task->t_task_lba * dev->se_sub_dev->se_dev_attrib.block_size;
 		if (cmd->data_length)
 			end = start + cmd->data_length;
 		else
@@ -446,7 +445,7 @@ static void fd_emulate_write_fua(struct se_cmd *cmd, struct se_task *task)
 {
 	struct se_device *dev = cmd->se_dev;
 	struct fd_dev *fd_dev = dev->dev_ptr;
-	loff_t start = task->task_lba * DEV_ATTRIB(dev)->block_size;
+	loff_t start = task->task_lba * dev->se_sub_dev->se_dev_attrib.block_size;
 	loff_t end = start + task->task_size;
 	int ret;
 
@@ -474,9 +473,9 @@ static int fd_do_task(struct se_task *task)
 		ret = fd_do_writev(task);
 
 		if (ret > 0 &&
-		    DEV_ATTRIB(dev)->emulate_write_cache > 0 &&
-		    DEV_ATTRIB(dev)->emulate_fua_write > 0 &&
-		    T_TASK(cmd)->t_tasks_fua) {
+		    dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0 &&
+		    dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0 &&
+		    cmd->t_task->t_tasks_fua) {
 			/*
 			 * We might need to be a bit smarter here
 			 * and return some sense data to let the initiator
@@ -599,7 +598,7 @@ static ssize_t fd_check_configfs_dev_params(struct se_hba *hba, struct se_subsys
 
 	if (!(fd_dev->fbd_flags & FBDF_HAS_PATH)) {
 		printk(KERN_ERR "Missing fd_dev_name=\n");
-		return -1;
+		return -EINVAL;
 	}
 
 	return 0;
@@ -654,7 +653,7 @@ static sector_t fd_get_blocks(struct se_device *dev)
 {
 	struct fd_dev *fd_dev = dev->dev_ptr;
 	unsigned long long blocks_long = div_u64(fd_dev->fd_dev_size,
-			DEV_ATTRIB(dev)->block_size);
+			dev->se_sub_dev->se_dev_attrib.block_size);
 
 	return blocks_long;
 }

drivers/target/target_core_file.h

@@ -4,8 +4,6 @@
 #define FD_VERSION		"4.0"
 
 #define FD_MAX_DEV_NAME		256
-/* Maximum queuedepth for the FILEIO HBA */
-#define FD_HBA_QUEUE_DEPTH	256
 #define FD_DEVICE_QUEUE_DEPTH	32
 #define FD_MAX_DEVICE_QUEUE_DEPTH 128
 #define FD_BLOCKSIZE		512

drivers/target/target_core_hba.c

 /*******************************************************************************
  * Filename:  target_core_hba.c
  *
- * This file copntains the iSCSI HBA Transport related functions.
+ * This file contains the TCM HBA Transport related functions.
  *
  * Copyright (c) 2003, 2004, 2005 PyX Technologies, Inc.
  * Copyright (c) 2005, 2006, 2007 SBE, Inc.
@@ -45,6 +45,11 @@
 static LIST_HEAD(subsystem_list);
 static DEFINE_MUTEX(subsystem_mutex);
 
+static u32 hba_id_counter;
+
+static DEFINE_SPINLOCK(hba_lock);
+static LIST_HEAD(hba_list);
+
 int transport_subsystem_register(struct se_subsystem_api *sub_api)
 {
 	struct se_subsystem_api *s;
@@ -110,15 +115,11 @@ core_alloc_hba(const char *plugin_name, u32 plugin_dep_id, u32 hba_flags)
 
 	INIT_LIST_HEAD(&hba->hba_dev_list);
 	spin_lock_init(&hba->device_lock);
-	spin_lock_init(&hba->hba_queue_lock);
 	mutex_init(&hba->hba_access_mutex);
 
 	hba->hba_index = scsi_get_new_index(SCSI_INST_INDEX);
 	hba->hba_flags |= hba_flags;
 
-	atomic_set(&hba->max_queue_depth, 0);
-	atomic_set(&hba->left_queue_depth, 0);
-
 	hba->transport = core_get_backend(plugin_name);
 	if (!hba->transport) {
 		ret = -EINVAL;
@@ -129,10 +130,10 @@ core_alloc_hba(const char *plugin_name, u32 plugin_dep_id, u32 hba_flags)
 	if (ret < 0)
 		goto out_module_put;
 
-	spin_lock(&se_global->hba_lock);
-	hba->hba_id = se_global->g_hba_id_counter++;
-	list_add_tail(&hba->hba_list, &se_global->g_hba_list);
-	spin_unlock(&se_global->hba_lock);
+	spin_lock(&hba_lock);
+	hba->hba_id = hba_id_counter++;
+	list_add_tail(&hba->hba_node, &hba_list);
+	spin_unlock(&hba_lock);
 
 	printk(KERN_INFO "CORE_HBA[%d] - Attached HBA to Generic Target"
 			" Core\n", hba->hba_id);
@@ -156,9 +157,9 @@ core_delete_hba(struct se_hba *hba)
 
 	hba->transport->detach_hba(hba);
 
-	spin_lock(&se_global->hba_lock);
-	list_del(&hba->hba_list);
-	spin_unlock(&se_global->hba_lock);
+	spin_lock(&hba_lock);
+	list_del(&hba->hba_node);
+	spin_unlock(&hba_lock);
 
 	printk(KERN_INFO "CORE_HBA[%d] - Detached HBA from Generic Target"
 			" Core\n", hba->hba_id);

drivers/target/target_core_iblock.c

@@ -74,17 +74,14 @@ static int iblock_attach_hba(struct se_hba *hba, u32 host_id)
 
 	ib_host->iblock_host_id = host_id;
 
-	atomic_set(&hba->left_queue_depth, IBLOCK_HBA_QUEUE_DEPTH);
-	atomic_set(&hba->max_queue_depth, IBLOCK_HBA_QUEUE_DEPTH);
 	hba->hba_ptr = (void *) ib_host;
 
 	printk(KERN_INFO "CORE_HBA[%d] - TCM iBlock HBA Driver %s on"
 		" Generic Target Core Stack %s\n", hba->hba_id,
 		IBLOCK_VERSION, TARGET_CORE_MOD_VERSION);
 
-	printk(KERN_INFO "CORE_HBA[%d] - Attached iBlock HBA: %u to Generic"
-		" Target Core TCQ Depth: %d\n", hba->hba_id,
-		ib_host->iblock_host_id, atomic_read(&hba->max_queue_depth));
+	printk(KERN_INFO "CORE_HBA[%d] - Attached iBlock HBA: %u to Generic\n",
+		hba->hba_id, ib_host->iblock_host_id);
 
 	return 0;
 }
@@ -188,15 +185,15 @@ static struct se_device *iblock_create_virtdevice(
 	 * in ATA and we need to set TPE=1
 	 */
 	if (blk_queue_discard(q)) {
-		DEV_ATTRIB(dev)->max_unmap_lba_count =
+		dev->se_sub_dev->se_dev_attrib.max_unmap_lba_count =
 				q->limits.max_discard_sectors;
 		/*
 		 * Currently hardcoded to 1 in Linux/SCSI code..
 		 */
-		DEV_ATTRIB(dev)->max_unmap_block_desc_count = 1;
-		DEV_ATTRIB(dev)->unmap_granularity =
+		dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count = 1;
+		dev->se_sub_dev->se_dev_attrib.unmap_granularity =
 				q->limits.discard_granularity;
-		DEV_ATTRIB(dev)->unmap_granularity_alignment =
+		dev->se_sub_dev->se_dev_attrib.unmap_granularity_alignment =
 				q->limits.discard_alignment;
 
 		printk(KERN_INFO "IBLOCK: BLOCK Discard support available,"
@@ -243,7 +240,7 @@ iblock_alloc_task(struct se_cmd *cmd)
 		return NULL;
 	}
 
-	ib_req->ib_dev = SE_DEV(cmd)->dev_ptr;
+	ib_req->ib_dev = cmd->se_lun->lun_se_dev->dev_ptr;
 	atomic_set(&ib_req->ib_bio_cnt, 0);
 	return &ib_req->ib_task;
 }
@@ -257,12 +254,12 @@ static unsigned long long iblock_emulate_read_cap_with_block_size(
 					bdev_logical_block_size(bd)) - 1);
 	u32 block_size = bdev_logical_block_size(bd);
 
-	if (block_size == DEV_ATTRIB(dev)->block_size)
+	if (block_size == dev->se_sub_dev->se_dev_attrib.block_size)
 		return blocks_long;
 
 	switch (block_size) {
 	case 4096:
-		switch (DEV_ATTRIB(dev)->block_size) {
+		switch (dev->se_sub_dev->se_dev_attrib.block_size) {
 		case 2048:
 			blocks_long <<= 1;
 			break;
@@ -276,7 +273,7 @@ static unsigned long long iblock_emulate_read_cap_with_block_size(
 		}
 		break;
 	case 2048:
-		switch (DEV_ATTRIB(dev)->block_size) {
+		switch (dev->se_sub_dev->se_dev_attrib.block_size) {
 		case 4096:
 			blocks_long >>= 1;
 			break;
@@ -291,7 +288,7 @@ static unsigned long long iblock_emulate_read_cap_with_block_size(
 		}
 		break;
 	case 1024:
-		switch (DEV_ATTRIB(dev)->block_size) {
+		switch (dev->se_sub_dev->se_dev_attrib.block_size) {
 		case 4096:
 			blocks_long >>= 2;
 			break;
@@ -306,7 +303,7 @@ static unsigned long long iblock_emulate_read_cap_with_block_size(
 		}
 		break;
 	case 512:
-		switch (DEV_ATTRIB(dev)->block_size) {
+		switch (dev->se_sub_dev->se_dev_attrib.block_size) {
 		case 4096:
 			blocks_long >>= 3;
 			break;
@@ -332,9 +329,9 @@ static unsigned long long iblock_emulate_read_cap_with_block_size(
  */
 static void iblock_emulate_sync_cache(struct se_task *task)
 {
-	struct se_cmd *cmd = TASK_CMD(task);
+	struct se_cmd *cmd = task->task_se_cmd;
 	struct iblock_dev *ib_dev = cmd->se_dev->dev_ptr;
-	int immed = (T_TASK(cmd)->t_task_cdb[1] & 0x2);
+	int immed = (cmd->t_task->t_task_cdb[1] & 0x2);
 	sector_t error_sector;
 	int ret;
 
@@ -401,9 +398,9 @@ static int iblock_do_task(struct se_task *task)
 		 * Force data to disk if we pretend to not have a volatile
 		 * write cache, or the initiator set the Force Unit Access bit.
 		 */
-		if (DEV_ATTRIB(dev)->emulate_write_cache == 0 ||
-		    (DEV_ATTRIB(dev)->emulate_fua_write > 0 &&
-		     T_TASK(task->task_se_cmd)->t_tasks_fua))
+		if (dev->se_sub_dev->se_dev_attrib.emulate_write_cache == 0 ||
+		    (dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0 &&
+		     task->task_se_cmd->t_task->t_tasks_fua))
 			rw = WRITE_FUA;
 		else
 			rw = WRITE;
@@ -527,7 +524,7 @@ static ssize_t iblock_check_configfs_dev_params(
 
 	if (!(ibd->ibd_flags & IBDF_HAS_UDEV_PATH)) {
 		printk(KERN_ERR "Missing udev_path= parameters for IBLOCK\n");
-		return -1;
+		return -EINVAL;
 	}
 
 	return 0;
@@ -611,7 +608,7 @@ static struct bio *iblock_get_bio(
 static int iblock_map_task_SG(struct se_task *task)
 {
 	struct se_cmd *cmd = task->task_se_cmd;
-	struct se_device *dev = SE_DEV(cmd);
+	struct se_device *dev = cmd->se_lun->lun_se_dev;
 	struct iblock_dev *ib_dev = task->se_dev->dev_ptr;
 	struct iblock_req *ib_req = IBLOCK_REQ(task);
 	struct bio *bio = NULL, *hbio = NULL, *tbio = NULL;
@@ -623,17 +620,17 @@ static int iblock_map_task_SG(struct se_task *task)
 	 * Do starting conversion up from non 512-byte blocksize with
 	 * struct se_task SCSI blocksize into Linux/Block 512 units for BIO.
 	 */
-	if (DEV_ATTRIB(dev)->block_size == 4096)
+	if (dev->se_sub_dev->se_dev_attrib.block_size == 4096)
 		block_lba = (task->task_lba << 3);
-	else if (DEV_ATTRIB(dev)->block_size == 2048)
+	else if (dev->se_sub_dev->se_dev_attrib.block_size == 2048)
 		block_lba = (task->task_lba << 2);
-	else if (DEV_ATTRIB(dev)->block_size == 1024)
+	else if (dev->se_sub_dev->se_dev_attrib.block_size == 1024)
 		block_lba = (task->task_lba << 1);
-	else if (DEV_ATTRIB(dev)->block_size == 512)
+	else if (dev->se_sub_dev->se_dev_attrib.block_size == 512)
 		block_lba = task->task_lba;
 	else {
 		printk(KERN_ERR "Unsupported SCSI -> BLOCK LBA conversion:"
-				" %u\n", DEV_ATTRIB(dev)->block_size);
+				" %u\n", dev->se_sub_dev->se_dev_attrib.block_size);
 		return PYX_TRANSPORT_LU_COMM_FAILURE;
 	}
 

drivers/target/target_core_iblock.h

@@ -3,7 +3,6 @@
 
 #define IBLOCK_VERSION		"4.0"
 
-#define IBLOCK_HBA_QUEUE_DEPTH	512
 #define IBLOCK_DEVICE_QUEUE_DEPTH	32
 #define IBLOCK_MAX_DEVICE_QUEUE_DEPTH	128
 #define IBLOCK_MAX_CDBS		16

drivers/target/target_core_pr.h

@@ -49,7 +49,7 @@ extern int core_pr_dump_initiator_port(struct t10_pr_registration *,
 			char *, u32);
 extern int core_scsi2_emulate_crh(struct se_cmd *);
 extern int core_scsi3_alloc_aptpl_registration(
-			struct t10_reservation_template *, u64,
+			struct t10_reservation *, u64,
 			unsigned char *, unsigned char *, u32,
 			unsigned char *, u16, u32, int, int, u8);
 extern int core_scsi3_check_aptpl_registration(struct se_device *,

drivers/target/target_core_pscsi.c

@@ -55,24 +55,6 @@ static struct se_subsystem_api pscsi_template;
 
 static void pscsi_req_done(struct request *, int);
 
-/*	pscsi_get_sh():
- *
- *
- */
-static struct Scsi_Host *pscsi_get_sh(u32 host_no)
-{
-	struct Scsi_Host *sh = NULL;
-
-	sh = scsi_host_lookup(host_no);
-	if (IS_ERR(sh)) {
-		printk(KERN_ERR "Unable to locate SCSI HBA with Host ID:"
-				" %u\n", host_no);
-		return NULL;
-	}
-
-	return sh;
-}
-
 /*	pscsi_attach_hba():
  *
  * 	pscsi_get_sh() used scsi_host_lookup() to locate struct Scsi_Host.
@@ -80,28 +62,23 @@ static struct Scsi_Host *pscsi_get_sh(u32 host_no)
  */
 static int pscsi_attach_hba(struct se_hba *hba, u32 host_id)
 {
-	int hba_depth;
 	struct pscsi_hba_virt *phv;
 
 	phv = kzalloc(sizeof(struct pscsi_hba_virt), GFP_KERNEL);
 	if (!(phv)) {
 		printk(KERN_ERR "Unable to allocate struct pscsi_hba_virt\n");
-		return -1;
+		return -ENOMEM;
 	}
 	phv->phv_host_id = host_id;
 	phv->phv_mode = PHV_VIRUTAL_HOST_ID;
-	hba_depth = PSCSI_VIRTUAL_HBA_DEPTH;
-	atomic_set(&hba->left_queue_depth, hba_depth);
-	atomic_set(&hba->max_queue_depth, hba_depth);
 
 	hba->hba_ptr = (void *)phv;
 
 	printk(KERN_INFO "CORE_HBA[%d] - TCM SCSI HBA Driver %s on"
 		" Generic Target Core Stack %s\n", hba->hba_id,
 		PSCSI_VERSION, TARGET_CORE_MOD_VERSION);
-	printk(KERN_INFO "CORE_HBA[%d] - Attached SCSI HBA to Generic"
-		" Target Core with TCQ Depth: %d\n", hba->hba_id,
-		atomic_read(&hba->max_queue_depth));
+	printk(KERN_INFO "CORE_HBA[%d] - Attached SCSI HBA to Generic\n",
+	       hba->hba_id);
 
 	return 0;
 }
@@ -130,7 +107,6 @@ static int pscsi_pmode_enable_hba(struct se_hba *hba, unsigned long mode_flag)
 {
 	struct pscsi_hba_virt *phv = (struct pscsi_hba_virt *)hba->hba_ptr;
 	struct Scsi_Host *sh = phv->phv_lld_host;
-	int hba_depth = PSCSI_VIRTUAL_HBA_DEPTH;
 	/*
 	 * Release the struct Scsi_Host
 	 */
@@ -140,8 +116,6 @@ static int pscsi_pmode_enable_hba(struct se_hba *hba, unsigned long mode_flag)
 
 		phv->phv_lld_host = NULL;
 		phv->phv_mode = PHV_VIRUTAL_HOST_ID;
-		atomic_set(&hba->left_queue_depth, hba_depth);
-		atomic_set(&hba->max_queue_depth, hba_depth);
 
 		printk(KERN_INFO "CORE_HBA[%d] - Disabled pSCSI HBA Passthrough"
 			" %s\n", hba->hba_id, (sh->hostt->name) ?
@@ -154,22 +128,12 @@ static int pscsi_pmode_enable_hba(struct se_hba *hba, unsigned long mode_flag)
 	 * Otherwise, locate struct Scsi_Host from the original passed
 	 * pSCSI Host ID and enable for phba mode
 	 */
-	sh = pscsi_get_sh(phv->phv_host_id);
-	if (!(sh)) {
+	sh = scsi_host_lookup(phv->phv_host_id);
+	if (IS_ERR(sh)) {
 		printk(KERN_ERR "pSCSI: Unable to locate SCSI Host for"
 			" phv_host_id: %d\n", phv->phv_host_id);
-		return -1;
+		return PTR_ERR(sh);
 	}
-	/*
-	 * Usually the SCSI LLD will use the hostt->can_queue value to define
-	 * its HBA TCQ depth.  Some other drivers (like 2.6 megaraid) don't set
-	 * this at all and set sh->can_queue at runtime.
-	 */
-	hba_depth = (sh->hostt->can_queue > sh->can_queue) ?
-		sh->hostt->can_queue : sh->can_queue;
-
-	atomic_set(&hba->left_queue_depth, hba_depth);
-	atomic_set(&hba->max_queue_depth, hba_depth);
 
 	phv->phv_lld_host = sh;
 	phv->phv_mode = PHV_LLD_SCSI_HOST_NO;
@@ -236,7 +200,7 @@ pscsi_get_inquiry_vpd_serial(struct scsi_device *sdev, struct t10_wwn *wwn)
 
 	buf = kzalloc(INQUIRY_VPD_SERIAL_LEN, GFP_KERNEL);
 	if (!buf)
-		return -1;
+		return -ENOMEM;
 
 	memset(cdb, 0, MAX_COMMAND_SIZE);
 	cdb[0] = INQUIRY;
@@ -259,7 +223,7 @@ pscsi_get_inquiry_vpd_serial(struct scsi_device *sdev, struct t10_wwn *wwn)
 
 out_free:
 	kfree(buf);
-	return -1;
+	return -EPERM;
 }
 
 static void
@@ -601,11 +565,11 @@ static struct se_device *pscsi_create_virtdevice(
 			hba->hba_flags |= HBA_FLAGS_PSCSI_MODE;
 			sh = phv->phv_lld_host;
 		} else {
-			sh = pscsi_get_sh(pdv->pdv_host_id);
-			if (!(sh)) {
+			sh = scsi_host_lookup(pdv->pdv_host_id);
+			if (IS_ERR(sh)) {
 				printk(KERN_ERR "pSCSI: Unable to locate"
 					" pdv_host_id: %d\n", pdv->pdv_host_id);
-				return ERR_PTR(-ENODEV);
+				return (struct se_device *) sh;
 			}
 		}
 	} else {
@@ -728,13 +692,12 @@ static int pscsi_transport_complete(struct se_task *task)
 	 */
 	if (((cdb[0] == MODE_SENSE) || (cdb[0] == MODE_SENSE_10)) &&
 	     (status_byte(result) << 1) == SAM_STAT_GOOD) {
-		if (!TASK_CMD(task)->se_deve)
+		if (!task->task_se_cmd->se_deve)
 			goto after_mode_sense;
 
-		if (TASK_CMD(task)->se_deve->lun_flags &
+		if (task->task_se_cmd->se_deve->lun_flags &
 				TRANSPORT_LUNFLAGS_READ_ONLY) {
-			unsigned char *buf = (unsigned char *)
-				T_TASK(task->task_se_cmd)->t_task_buf;
+			unsigned char *buf = task->task_se_cmd->t_task->t_task_buf;
 
 			if (cdb[0] == MODE_SENSE_10) {
 				if (!(buf[3] & 0x80))
@@ -800,7 +763,7 @@ static struct se_task *
 pscsi_alloc_task(struct se_cmd *cmd)
 {
 	struct pscsi_plugin_task *pt;
-	unsigned char *cdb = T_TASK(cmd)->t_task_cdb;
+	unsigned char *cdb = cmd->t_task->t_task_cdb;
 
 	pt = kzalloc(sizeof(struct pscsi_plugin_task), GFP_KERNEL);
 	if (!pt) {
@@ -813,7 +776,7 @@ pscsi_alloc_task(struct se_cmd *cmd)
 	 * allocate the extended CDB buffer for per struct se_task context
 	 * pt->pscsi_cdb now.
 	 */
-	if (T_TASK(cmd)->t_task_cdb != T_TASK(cmd)->__t_task_cdb) {
+	if (cmd->t_task->t_task_cdb != cmd->t_task->__t_task_cdb) {
 
 		pt->pscsi_cdb = kzalloc(scsi_command_size(cdb), GFP_KERNEL);
 		if (!(pt->pscsi_cdb)) {
@@ -926,7 +889,7 @@ static void pscsi_free_task(struct se_task *task)
 	 * Release the extended CDB allocation from pscsi_alloc_task()
 	 * if one exists.
 	 */
-	if (T_TASK(cmd)->t_task_cdb != T_TASK(cmd)->__t_task_cdb)
+	if (cmd->t_task->t_task_cdb != cmd->t_task->__t_task_cdb)
 		kfree(pt->pscsi_cdb);
 	/*
 	 * We do not release the bio(s) here associated with this task, as
@@ -1030,7 +993,7 @@ static ssize_t pscsi_check_configfs_dev_params(
 	    !(pdv->pdv_flags & PDF_HAS_LUN_ID)) {
 		printk(KERN_ERR "Missing scsi_channel_id=, scsi_target_id= and"
 			" scsi_lun_id= parameters\n");
-		return -1;
+		return -EINVAL;
 	}
 
 	return 0;
@@ -1291,7 +1254,7 @@ static int pscsi_map_task_SG(struct se_task *task)
  */
 static int pscsi_map_task_non_SG(struct se_task *task)
 {
-	struct se_cmd *cmd = TASK_CMD(task);
+	struct se_cmd *cmd = task->task_se_cmd;
 	struct pscsi_plugin_task *pt = PSCSI_TASK(task);
 	struct pscsi_dev_virt *pdv = task->se_dev->dev_ptr;
 	int ret = 0;
@@ -1303,7 +1266,7 @@ static int pscsi_map_task_non_SG(struct se_task *task)
 		return 0;
 
 	ret = blk_rq_map_kern(pdv->pdv_sd->request_queue,
-			pt->pscsi_req, T_TASK(cmd)->t_task_buf,
+			pt->pscsi_req, cmd->t_task->t_task_buf,
 			task->task_size, GFP_KERNEL);
 	if (ret < 0) {
 		printk(KERN_ERR "PSCSI: blk_rq_map_kern() failed: %d\n", ret);
@@ -1400,13 +1363,11 @@ static inline void pscsi_process_SAM_status(
 			pt->pscsi_result);
 		task->task_scsi_status = SAM_STAT_CHECK_CONDITION;
 		task->task_error_status = PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
-		TASK_CMD(task)->transport_error_status =
+		task->task_se_cmd->transport_error_status =
 					PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
 		transport_complete_task(task, 0);
 		break;
 	}
-
-	return;
 }
 
 static void pscsi_req_done(struct request *req, int uptodate)

drivers/target/target_core_pscsi.h

@@ -2,7 +2,6 @@
 #define TARGET_CORE_PSCSI_H
 
 #define PSCSI_VERSION		"v4.0"
-#define PSCSI_VIRTUAL_HBA_DEPTH	2048
 
 /* used in pscsi_find_alloc_len() */
 #ifndef INQUIRY_DATA_SIZE

drivers/target/target_core_rd.c

@@ -66,17 +66,14 @@ static int rd_attach_hba(struct se_hba *hba, u32 host_id)
 
 	rd_host->rd_host_id = host_id;
 
-	atomic_set(&hba->left_queue_depth, RD_HBA_QUEUE_DEPTH);
-	atomic_set(&hba->max_queue_depth, RD_HBA_QUEUE_DEPTH);
 	hba->hba_ptr = (void *) rd_host;
 
 	printk(KERN_INFO "CORE_HBA[%d] - TCM Ramdisk HBA Driver %s on"
 		" Generic Target Core Stack %s\n", hba->hba_id,
 		RD_HBA_VERSION, TARGET_CORE_MOD_VERSION);
 	printk(KERN_INFO "CORE_HBA[%d] - Attached Ramdisk HBA: %u to Generic"
-		" Target Core TCQ Depth: %d MaxSectors: %u\n", hba->hba_id,
-		rd_host->rd_host_id, atomic_read(&hba->max_queue_depth),
-		RD_MAX_SECTORS);
+		" MaxSectors: %u\n", hba->hba_id,
+		rd_host->rd_host_id, RD_MAX_SECTORS);
 
 	return 0;
 }
@@ -339,7 +336,7 @@ rd_alloc_task(struct se_cmd *cmd)
 		printk(KERN_ERR "Unable to allocate struct rd_request\n");
 		return NULL;
 	}
-	rd_req->rd_dev = SE_DEV(cmd)->dev_ptr;
+	rd_req->rd_dev = cmd->se_lun->lun_se_dev->dev_ptr;
 
 	return &rd_req->rd_task;
 }
@@ -383,7 +380,7 @@ static int rd_MEMCPY_read(struct rd_request *req)
 
 	table = rd_get_sg_table(dev, req->rd_page);
 	if (!(table))
-		return -1;
+		return -EINVAL;
 
 	table_sg_end = (table->page_end_offset - req->rd_page);
 	sg_d = task->task_sg;
@@ -481,7 +478,7 @@ static int rd_MEMCPY_read(struct rd_request *req)
 #endif
 		table = rd_get_sg_table(dev, req->rd_page);
 		if (!(table))
-			return -1;
+			return -EINVAL;
 
 		sg_s = &table->sg_table[j = 0];
 	}
@@ -506,7 +503,7 @@ static int rd_MEMCPY_write(struct rd_request *req)
 
 	table = rd_get_sg_table(dev, req->rd_page);
 	if (!(table))
-		return -1;
+		return -EINVAL;
 
 	table_sg_end = (table->page_end_offset - req->rd_page);
 	sg_d = &table->sg_table[req->rd_page - table->page_start_offset];
@@ -604,7 +601,7 @@ static int rd_MEMCPY_write(struct rd_request *req)
 #endif
 		table = rd_get_sg_table(dev, req->rd_page);
 		if (!(table))
-			return -1;
+			return -EINVAL;
 
 		sg_d = &table->sg_table[j = 0];
 	}
@@ -623,11 +620,11 @@ static int rd_MEMCPY_do_task(struct se_task *task)
 	unsigned long long lba;
 	int ret;
 
-	req->rd_page = (task->task_lba * DEV_ATTRIB(dev)->block_size) / PAGE_SIZE;
+	req->rd_page = (task->task_lba * dev->se_sub_dev->se_dev_attrib.block_size) / PAGE_SIZE;
 	lba = task->task_lba;
 	req->rd_offset = (do_div(lba,
-			  (PAGE_SIZE / DEV_ATTRIB(dev)->block_size))) *
-			   DEV_ATTRIB(dev)->block_size;
+			  (PAGE_SIZE / dev->se_sub_dev->se_dev_attrib.block_size))) *
+			   dev->se_sub_dev->se_dev_attrib.block_size;
 	req->rd_size = task->task_size;
 
 	if (task->task_data_direction == DMA_FROM_DEVICE)
@@ -664,7 +661,7 @@ static int rd_DIRECT_with_offset(
 
 	table = rd_get_sg_table(dev, req->rd_page);
 	if (!(table))
-		return -1;
+		return -EINVAL;
 
 	table_sg_end = (table->page_end_offset - req->rd_page);
 	sg_s = &table->sg_table[req->rd_page - table->page_start_offset];
@@ -678,7 +675,7 @@ static int rd_DIRECT_with_offset(
 		se_mem = kmem_cache_zalloc(se_mem_cache, GFP_KERNEL);
 		if (!(se_mem)) {
 			printk(KERN_ERR "Unable to allocate struct se_mem\n");
-			return -1;
+			return -ENOMEM;
 		}
 		INIT_LIST_HEAD(&se_mem->se_list);
 
@@ -734,13 +731,13 @@ static int rd_DIRECT_with_offset(
 #endif
 		table = rd_get_sg_table(dev, req->rd_page);
 		if (!(table))
-			return -1;
+			return -EINVAL;
 
 		sg_s = &table->sg_table[j = 0];
 	}
 
 out:
-	T_TASK(task->task_se_cmd)->t_tasks_se_num += *se_mem_cnt;
+	task->task_se_cmd->t_task->t_tasks_se_num += *se_mem_cnt;
 #ifdef DEBUG_RAMDISK_DR
 	printk(KERN_INFO "RD_DR - Allocated %u struct se_mem segments for task\n",
 			*se_mem_cnt);
@@ -767,7 +764,7 @@ static int rd_DIRECT_without_offset(
 
 	table = rd_get_sg_table(dev, req->rd_page);
 	if (!(table))
-		return -1;
+		return -EINVAL;
 
 	sg_s = &table->sg_table[req->rd_page - table->page_start_offset];
 #ifdef DEBUG_RAMDISK_DR
@@ -780,7 +777,7 @@ static int rd_DIRECT_without_offset(
 		se_mem = kmem_cache_zalloc(se_mem_cache, GFP_KERNEL);
 		if (!(se_mem)) {
 			printk(KERN_ERR "Unable to allocate struct se_mem\n");
-			return -1;
+			return -ENOMEM;
 		}
 		INIT_LIST_HEAD(&se_mem->se_list);
 
@@ -816,13 +813,13 @@ static int rd_DIRECT_without_offset(
 #endif
 		table = rd_get_sg_table(dev, req->rd_page);
 		if (!(table))
-			return -1;
+			return -EINVAL;
 
 		sg_s = &table->sg_table[j = 0];
 	}
 
 out:
-	T_TASK(task->task_se_cmd)->t_tasks_se_num += *se_mem_cnt;
+	task->task_se_cmd->t_task->t_tasks_se_num += *se_mem_cnt;
 #ifdef DEBUG_RAMDISK_DR
 	printk(KERN_INFO "RD_DR - Allocated %u struct se_mem segments for task\n",
 			*se_mem_cnt);
@@ -848,13 +845,11 @@ static int rd_DIRECT_do_se_mem_map(
 	u32 task_offset = *task_offset_in;
 	unsigned long long lba;
 	int ret;
+	int block_size = task->se_dev->se_sub_dev->se_dev_attrib.block_size;
 
-	req->rd_page = ((task->task_lba * DEV_ATTRIB(task->se_dev)->block_size) /
-			PAGE_SIZE);
 	lba = task->task_lba;
-	req->rd_offset = (do_div(lba,
-			  (PAGE_SIZE / DEV_ATTRIB(task->se_dev)->block_size))) *
-			   DEV_ATTRIB(task->se_dev)->block_size;
+	req->rd_page = ((task->task_lba * block_size) /	PAGE_SIZE);
+	req->rd_offset = (do_div(lba, (PAGE_SIZE / block_size))) * block_size;
 	req->rd_size = task->task_size;
 
 	if (req->rd_offset)
@@ -867,7 +862,7 @@ static int rd_DIRECT_do_se_mem_map(
 	if (ret < 0)
 		return ret;
 
-	if (CMD_TFO(cmd)->task_sg_chaining == 0)
+	if (cmd->se_tfo->task_sg_chaining == 0)
 		return 0;
 	/*
 	 * Currently prevent writers from multiple HW fabrics doing
@@ -876,7 +871,7 @@ static int rd_DIRECT_do_se_mem_map(
 	if (cmd->data_direction == DMA_TO_DEVICE) {
 		printk(KERN_ERR "DMA_TO_DEVICE not supported for"
 				" RAMDISK_DR with task_sg_chaining=1\n");
-		return -1;
+		return -ENOSYS;
 	}
 	/*
 	 * Special case for if task_sg_chaining is enabled, then
@@ -884,14 +879,15 @@ static int rd_DIRECT_do_se_mem_map(
 	 * transport_do_task_sg_chain() for creating chainged SGLs
 	 * across multiple struct se_task->task_sg[].
 	 */
-	if (!(transport_calc_sg_num(task,
-			list_entry(T_TASK(cmd)->t_mem_list->next,
+	ret = transport_init_task_sg(task,
+			list_entry(cmd->t_task->t_mem_list->next,
 				   struct se_mem, se_list),
-			task_offset)))
-		return -1;
+			task_offset);
+	if (ret <= 0)
+		return ret;
 
 	return transport_map_mem_to_sg(task, se_mem_list, task->task_sg,
-			list_entry(T_TASK(cmd)->t_mem_list->next,
+			list_entry(cmd->t_task->t_mem_list->next,
 				   struct se_mem, se_list),
 			out_se_mem, se_mem_cnt, task_offset_in);
 }
@@ -975,7 +971,7 @@ static ssize_t rd_check_configfs_dev_params(struct se_hba *hba, struct se_subsys
 
 	if (!(rd_dev->rd_flags & RDF_HAS_PAGE_COUNT)) {
 		printk(KERN_INFO "Missing rd_pages= parameter\n");
-		return -1;
+		return -EINVAL;
 	}
 
 	return 0;
@@ -1021,7 +1017,7 @@ static sector_t rd_get_blocks(struct se_device *dev)
 {
 	struct rd_dev *rd_dev = dev->dev_ptr;
 	unsigned long long blocks_long = ((rd_dev->rd_page_count * PAGE_SIZE) /
-			DEV_ATTRIB(dev)->block_size) - 1;
+			dev->se_sub_dev->se_dev_attrib.block_size) - 1;
 
 	return blocks_long;
 }

drivers/target/target_core_rd.h

@@ -7,8 +7,6 @@
 
 /* Largest piece of memory kmalloc can allocate */
 #define RD_MAX_ALLOCATION_SIZE	65536
-/* Maximum queuedepth for the Ramdisk HBA */
-#define RD_HBA_QUEUE_DEPTH	256
 #define RD_DEVICE_QUEUE_DEPTH	32
 #define RD_MAX_DEVICE_QUEUE_DEPTH 128
 #define RD_BLOCKSIZE		512

drivers/target/target_core_ua.c

@@ -80,10 +80,10 @@ int core_scsi3_ua_check(
 	case REQUEST_SENSE:
 		return 0;
 	default:
-		return -1;
+		return -EINVAL;
 	}
 
-	return -1;
+	return -EINVAL;
 }
 
 int core_scsi3_ua_allocate(
@@ -98,12 +98,12 @@ int core_scsi3_ua_allocate(
 	 * PASSTHROUGH OPS
 	 */
 	if (!(nacl))
-		return -1;
+		return -EINVAL;
 
 	ua = kmem_cache_zalloc(se_ua_cache, GFP_ATOMIC);
 	if (!(ua)) {
 		printk(KERN_ERR "Unable to allocate struct se_ua\n");
-		return -1;
+		return -ENOMEM;
 	}
 	INIT_LIST_HEAD(&ua->ua_dev_list);
 	INIT_LIST_HEAD(&ua->ua_nacl_list);
@@ -179,7 +179,7 @@ int core_scsi3_ua_allocate(
 
 	printk(KERN_INFO "[%s]: Allocated UNIT ATTENTION, mapped LUN: %u, ASC:"
 		" 0x%02x, ASCQ: 0x%02x\n",
-		TPG_TFO(nacl->se_tpg)->get_fabric_name(), unpacked_lun,
+		nacl->se_tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun,
 		asc, ascq);
 
 	atomic_inc(&deve->ua_count);
@@ -208,7 +208,7 @@ void core_scsi3_ua_for_check_condition(
 	u8 *asc,
 	u8 *ascq)
 {
-	struct se_device *dev = SE_DEV(cmd);
+	struct se_device *dev = cmd->se_lun->lun_se_dev;
 	struct se_dev_entry *deve;
 	struct se_session *sess = cmd->se_sess;
 	struct se_node_acl *nacl;
@@ -240,7 +240,7 @@ void core_scsi3_ua_for_check_condition(
 		 * highest priority UNIT_ATTENTION and ASC/ASCQ without
 		 * clearing it.
 		 */
-		if (DEV_ATTRIB(dev)->emulate_ua_intlck_ctrl != 0) {
+		if (dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl != 0) {
 			*asc = ua->ua_asc;
 			*ascq = ua->ua_ascq;
 			break;
@@ -267,10 +267,10 @@ void core_scsi3_ua_for_check_condition(
 	printk(KERN_INFO "[%s]: %s UNIT ATTENTION condition with"
 		" INTLCK_CTRL: %d, mapped LUN: %u, got CDB: 0x%02x"
 		" reported ASC: 0x%02x, ASCQ: 0x%02x\n",
-		TPG_TFO(nacl->se_tpg)->get_fabric_name(),
-		(DEV_ATTRIB(dev)->emulate_ua_intlck_ctrl != 0) ? "Reporting" :
-		"Releasing", DEV_ATTRIB(dev)->emulate_ua_intlck_ctrl,
-		cmd->orig_fe_lun, T_TASK(cmd)->t_task_cdb[0], *asc, *ascq);
+		nacl->se_tpg->se_tpg_tfo->get_fabric_name(),
+		(dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl != 0) ? "Reporting" :
+		"Releasing", dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl,
+		cmd->orig_fe_lun, cmd->t_task->t_task_cdb[0], *asc, *ascq);
 }
 
 int core_scsi3_ua_clear_for_request_sense(
@@ -285,17 +285,17 @@ int core_scsi3_ua_clear_for_request_sense(
 	int head = 1;
 
 	if (!(sess))
-		return -1;
+		return -EINVAL;
 
 	nacl = sess->se_node_acl;
 	if (!(nacl))
-		return -1;
+		return -EINVAL;
 
 	spin_lock_irq(&nacl->device_list_lock);
 	deve = &nacl->device_list[cmd->orig_fe_lun];
 	if (!(atomic_read(&deve->ua_count))) {
 		spin_unlock_irq(&nacl->device_list_lock);
-		return -1;
+		return -EPERM;
 	}
 	/*
 	 * The highest priority Unit Attentions are placed at the head of the
@@ -325,8 +325,8 @@ int core_scsi3_ua_clear_for_request_sense(
 
 	printk(KERN_INFO "[%s]: Released UNIT ATTENTION condition, mapped"
 		" LUN: %u, got REQUEST_SENSE reported ASC: 0x%02x,"
-		" ASCQ: 0x%02x\n", TPG_TFO(nacl->se_tpg)->get_fabric_name(),
+		" ASCQ: 0x%02x\n", nacl->se_tpg->se_tpg_tfo->get_fabric_name(),
 		cmd->orig_fe_lun, *asc, *ascq);
 
-	return (head) ? -1 : 0;
+	return (head) ? -EPERM : 0;
 }

drivers/target/tcm_fc/tfc_cmd.c

@@ -72,7 +72,7 @@ void ft_dump_cmd(struct ft_cmd *cmd, const char *caller)
 		caller, cmd, cmd->cdb);
 	printk(KERN_INFO "%s: cmd %p lun %d\n", caller, cmd, cmd->lun);
 
-	task = T_TASK(se_cmd);
+	task = se_cmd->t_task;
 	printk(KERN_INFO "%s: cmd %p task %p se_num %u buf %p len %u se_cmd_flags <0x%x>\n",
 	       caller, cmd, task, task->t_tasks_se_num,
 	       task->t_task_buf, se_cmd->data_length, se_cmd->se_cmd_flags);
@@ -262,9 +262,9 @@ int ft_write_pending(struct se_cmd *se_cmd)
 				 * TCM/LIO target
 				 */
 				transport_do_task_sg_chain(se_cmd);
-				cmd->sg = T_TASK(se_cmd)->t_tasks_sg_chained;
+				cmd->sg = se_cmd->t_task->t_tasks_sg_chained;
 				cmd->sg_cnt =
-					T_TASK(se_cmd)->t_tasks_sg_chained_no;
+					se_cmd->t_task->t_tasks_sg_chained_no;
 			}
 			if (cmd->sg && lport->tt.ddp_setup(lport, ep->xid,
 						    cmd->sg, cmd->sg_cnt))
@@ -670,7 +670,6 @@ static void ft_send_cmd(struct ft_cmd *cmd)
 
 err:
 	ft_send_resp_code(cmd, FCP_CMND_FIELDS_INVALID);
-	return;
 }
 
 /*

drivers/target/tcm_fc/tfc_conf.c

@@ -582,10 +582,10 @@ int ft_register_configfs(void)
 	 * Register the top level struct config_item_type with TCM core
 	 */
 	fabric = target_fabric_configfs_init(THIS_MODULE, "fc");
-	if (!fabric) {
+	if (IS_ERR(fabric)) {
 		printk(KERN_INFO "%s: target_fabric_configfs_init() failed!\n",
 		       __func__);
-		return -1;
+		return PTR_ERR(fabric);
 	}
 	fabric->tf_ops = ft_fabric_ops;
 

drivers/target/tcm_fc/tfc_io.c

@@ -90,7 +90,7 @@ int ft_queue_data_in(struct se_cmd *se_cmd)
 	lport = ep->lp;
 	cmd->seq = lport->tt.seq_start_next(cmd->seq);
 
-	task = T_TASK(se_cmd);
+	task = se_cmd->t_task;
 	BUG_ON(!task);
 	remaining = se_cmd->data_length;
 
@@ -236,7 +236,7 @@ void ft_recv_write_data(struct ft_cmd *cmd, struct fc_frame *fp)
 	u32 f_ctl;
 	void *buf;
 
-	task = T_TASK(se_cmd);
+	task = se_cmd->t_task;
 	BUG_ON(!task);
 
 	fh = fc_frame_header_get(fp);

include/target/target_core_transport.h

@@ -111,9 +111,8 @@ struct se_subsystem_api;
 
 extern struct kmem_cache *se_mem_cache;
 
-extern int init_se_global(void);
-extern void release_se_global(void);
-extern void init_scsi_index_table(void);
+extern int init_se_kmem_caches(void);
+extern void release_se_kmem_caches(void);
 extern u32 scsi_get_new_index(scsi_index_t);
 extern void transport_init_queue_obj(struct se_queue_obj *);
 extern int transport_subsystem_check_init(void);
@@ -184,7 +183,7 @@ extern void transport_send_task_abort(struct se_cmd *);
 extern void transport_release_cmd_to_pool(struct se_cmd *);
 extern void transport_generic_free_cmd(struct se_cmd *, int, int, int);
 extern void transport_generic_wait_for_cmds(struct se_cmd *, int);
-extern u32 transport_calc_sg_num(struct se_task *, struct se_mem *, u32);
+extern int transport_init_task_sg(struct se_task *, struct se_mem *, u32);
 extern int transport_map_mem_to_sg(struct se_task *, struct list_head *,
 					void *, struct se_mem *,
 					struct se_mem **, u32 *, u32 *);
@@ -352,9 +351,4 @@ struct se_subsystem_api {
 	unsigned char *(*get_sense_buffer)(struct se_task *);
 } ____cacheline_aligned;
 
-#define TRANSPORT(dev)		((dev)->transport)
-#define HBA_TRANSPORT(hba)	((hba)->transport)
-
-extern struct se_global *se_global;
-
 #endif /* TARGET_CORE_TRANSPORT_H */