Merge branch 'for-linus-core' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending

* 'for-linus-core' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (38 commits)
  target: Bump version to v4.1.0-rc1-ml
  target: remove custom hex2bin() implementation
  target: fix typo Assoication -> Association
  target: Update QUEUE ALGORITHM MODIFIER control page default
  target: ->map_task_SG conversion to ->map_control_SG and ->map_data_SG
  target: Follow up core updates from AGrover and HCH (round 4)
  target: Eliminate usage of struct se_mem
  target: Pass 2nd param of transport_split_cdb by value
  target: Enforce 1 page max for control cdb buffer sizes
  target: Make all control CDBs scatter-gather
  target: Implement Block Device Characteristics VPD page
  target: Fix reporting of supported VPD pages
  target: Allow for built-in target modules
  tcm_fc: Convert to wake_up_process and schedule_timeout_interruptible
  tcm_fc: Makefile cleanups
  loopback: Fix memory leak in tcm_loop_make_scsi_hba()
  loopback: Remove duplicate scsi/scsi_tcq.h include
  loopback: off by one in tcm_loop_make_naa_tpg()
  target/iblock: Remove unused iblock_dev members
  target/iblock: Use request_queue->nr_request for se_device defaults
  ...

include/target/target_core_base.h

@@ -9,12 +9,13 @@
 #include <net/sock.h>
 #include <net/tcp.h>
 
-#define TARGET_CORE_MOD_VERSION		"v4.0.0-rc7-ml"
+#define TARGET_CORE_MOD_VERSION		"v4.1.0-rc1-ml"
 #define SHUTDOWN_SIGS	(sigmask(SIGKILL)|sigmask(SIGINT)|sigmask(SIGABRT))
 
 /* Used by transport_generic_allocate_iovecs() */
 #define TRANSPORT_IOV_DATA_BUFFER		5
 /* Maximum Number of LUNs per Target Portal Group */
+/* Don't raise above 511 or REPORT_LUNS needs to handle >1 page */
 #define TRANSPORT_MAX_LUNS_PER_TPG		256
 /*
  * By default we use 32-byte CDBs in TCM Core and subsystem plugin code.
@@ -99,6 +100,7 @@ enum transport_state_table {
 	TRANSPORT_FREE		= 15,
 	TRANSPORT_NEW_CMD_MAP	= 16,
 	TRANSPORT_FREE_CMD_INTR = 17,
+	TRANSPORT_COMPLETE_QF_WP = 18,
 };
 
 /* Used for struct se_cmd->se_cmd_flags */
@@ -108,27 +110,22 @@ enum se_cmd_flags_table {
 	SCF_EMULATED_TASK_SENSE		= 0x00000004,
 	SCF_SCSI_DATA_SG_IO_CDB		= 0x00000008,
 	SCF_SCSI_CONTROL_SG_IO_CDB	= 0x00000010,
-	SCF_SCSI_CONTROL_NONSG_IO_CDB	= 0x00000020,
 	SCF_SCSI_NON_DATA_CDB		= 0x00000040,
 	SCF_SCSI_CDB_EXCEPTION		= 0x00000080,
 	SCF_SCSI_RESERVATION_CONFLICT	= 0x00000100,
-	SCF_CMD_PASSTHROUGH_NOALLOC	= 0x00000200,
 	SCF_SE_CMD_FAILED		= 0x00000400,
 	SCF_SE_LUN_CMD			= 0x00000800,
 	SCF_SE_ALLOW_EOO		= 0x00001000,
-	SCF_SE_DISABLE_ONLINE_CHECK	= 0x00002000,
 	SCF_SENT_CHECK_CONDITION	= 0x00004000,
 	SCF_OVERFLOW_BIT		= 0x00008000,
 	SCF_UNDERFLOW_BIT		= 0x00010000,
 	SCF_SENT_DELAYED_TAS		= 0x00020000,
 	SCF_ALUA_NON_OPTIMIZED		= 0x00040000,
 	SCF_DELAYED_CMD_FROM_SAM_ATTR	= 0x00080000,
-	SCF_PASSTHROUGH_SG_TO_MEM	= 0x00100000,
-	SCF_PASSTHROUGH_CONTIG_TO_SG	= 0x00200000,
+	SCF_UNUSED			= 0x00100000,
 	SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00400000,
-	SCF_EMULATE_SYNC_CACHE		= 0x00800000,
 	SCF_EMULATE_CDB_ASYNC		= 0x01000000,
-	SCF_EMULATE_SYNC_UNMAP		= 0x02000000
+	SCF_EMULATE_QUEUE_FULL		= 0x02000000,
 };
 
 /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */
@@ -205,11 +202,6 @@ typedef enum {
 	SCSI_INDEX_TYPE_MAX
 } scsi_index_t;
 
-struct scsi_index_table {
-	spinlock_t	lock;
-	u32		scsi_mib_index[SCSI_INDEX_TYPE_MAX];
-} ____cacheline_aligned;
-
 struct se_cmd;
 
 struct t10_alua {
@@ -235,7 +227,7 @@ struct t10_alua_lu_gp {
 	atomic_t lu_gp_ref_cnt;
 	spinlock_t lu_gp_lock;
 	struct config_group lu_gp_group;
-	struct list_head lu_gp_list;
+	struct list_head lu_gp_node;
 	struct list_head lu_gp_mem_list;
 } ____cacheline_aligned;
 
@@ -291,10 +283,10 @@ struct t10_vpd {
 } ____cacheline_aligned;
 
 struct t10_wwn {
-	unsigned char vendor[8];
-	unsigned char model[16];
-	unsigned char revision[4];
-	unsigned char unit_serial[INQUIRY_VPD_SERIAL_LEN];
+	char vendor[8];
+	char model[16];
+	char revision[4];
+	char unit_serial[INQUIRY_VPD_SERIAL_LEN];
 	spinlock_t t10_vpd_lock;
 	struct se_subsystem_dev *t10_sub_dev;
 	struct config_group t10_wwn_group;
@@ -366,13 +358,13 @@ struct t10_reservation_ops {
 	int (*t10_pr_clear)(struct se_cmd *);
 };
 
-struct t10_reservation_template {
+struct t10_reservation {
 	/* Reservation effects all target ports */
 	int pr_all_tg_pt;
 	/* Activate Persistence across Target Power Loss enabled
 	 * for SCSI device */
 	int pr_aptpl_active;
-	/* Used by struct t10_reservation_template->pr_aptpl_buf_len */
+	/* Used by struct t10_reservation->pr_aptpl_buf_len */
 #define PR_APTPL_BUF_LEN			8192
 	u32 pr_aptpl_buf_len;
 	u32 pr_generation;
@@ -397,7 +389,7 @@ struct t10_reservation_template {
 
 struct se_queue_req {
 	int			state;
-	void			*cmd;
+	struct se_cmd		*cmd;
 	struct list_head	qr_list;
 } ____cacheline_aligned;
 
@@ -408,64 +400,10 @@ struct se_queue_obj {
 	wait_queue_head_t	thread_wq;
 } ____cacheline_aligned;
 
-/*
- * Used one per struct se_cmd to hold all extra struct se_task
- * metadata.  This structure is setup and allocated in
- * drivers/target/target_core_transport.c:__transport_alloc_se_cmd()
- */
-struct se_transport_task {
-	unsigned char		*t_task_cdb;
-	unsigned char		__t_task_cdb[TCM_MAX_COMMAND_SIZE];
-	unsigned long long	t_task_lba;
-	int			t_tasks_failed;
-	int			t_tasks_fua;
-	bool			t_tasks_bidi;
-	u32			t_task_cdbs;
-	u32			t_tasks_check;
-	u32			t_tasks_no;
-	u32			t_tasks_sectors;
-	u32			t_tasks_se_num;
-	u32			t_tasks_se_bidi_num;
-	u32			t_tasks_sg_chained_no;
-	atomic_t		t_fe_count;
-	atomic_t		t_se_count;
-	atomic_t		t_task_cdbs_left;
-	atomic_t		t_task_cdbs_ex_left;
-	atomic_t		t_task_cdbs_timeout_left;
-	atomic_t		t_task_cdbs_sent;
-	atomic_t		t_transport_aborted;
-	atomic_t		t_transport_active;
-	atomic_t		t_transport_complete;
-	atomic_t		t_transport_queue_active;
-	atomic_t		t_transport_sent;
-	atomic_t		t_transport_stop;
-	atomic_t		t_transport_timeout;
-	atomic_t		transport_dev_active;
-	atomic_t		transport_lun_active;
-	atomic_t		transport_lun_fe_stop;
-	atomic_t		transport_lun_stop;
-	spinlock_t		t_state_lock;
-	struct completion	t_transport_stop_comp;
-	struct completion	transport_lun_fe_stop_comp;
-	struct completion	transport_lun_stop_comp;
-	struct scatterlist	*t_tasks_sg_chained;
-	struct scatterlist	t_tasks_sg_bounce;
-	void			*t_task_buf;
-	/*
-	 * Used for pre-registered fabric SGL passthrough WRITE and READ
-	 * with the special SCF_PASSTHROUGH_CONTIG_TO_SG case for TCM_Loop
-	 * and other HW target mode fabric modules.
-	 */
-	struct scatterlist	*t_task_pt_sgl;
-	struct list_head	*t_mem_list;
-	/* Used for BIDI READ */
-	struct list_head	*t_mem_bidi_list;
-	struct list_head	t_task_list;
-} ____cacheline_aligned;
-
 struct se_task {
 	unsigned char	task_sense;
 	struct scatterlist *task_sg;
+	u32		task_sg_nents;
 	struct scatterlist *task_sg_bidi;
 	u8		task_scsi_status;
 	u8		task_flags;
@@ -476,8 +414,6 @@ struct se_task {
 	u32		task_no;
 	u32		task_sectors;
 	u32		task_size;
-	u32		task_sg_num;
-	u32		task_sg_offset;
 	enum dma_data_direction	task_data_direction;
 	struct se_cmd *task_se_cmd;
 	struct se_device	*se_dev;
@@ -495,9 +431,6 @@ struct se_task {
 	struct list_head t_state_list;
 } ____cacheline_aligned;
 
-#define TASK_CMD(task)	((task)->task_se_cmd)
-#define TASK_DEV(task)	((task)->se_dev)
-
 struct se_cmd {
 	/* SAM response code being sent to initiator */
 	u8			scsi_status;
@@ -531,9 +464,10 @@ struct se_cmd {
 	atomic_t                transport_sent;
 	/* Used for sense data */
 	void			*sense_buffer;
-	struct list_head	se_delayed_list;
-	struct list_head	se_ordered_list;
-	struct list_head	se_lun_list;
+	struct list_head	se_delayed_node;
+	struct list_head	se_ordered_node;
+	struct list_head	se_lun_node;
+	struct list_head	se_qf_node;
 	struct se_device      *se_dev;
 	struct se_dev_entry   *se_deve;
 	struct se_device	*se_obj_ptr;
@@ -542,18 +476,62 @@ struct se_cmd {
 	/* Only used for internal passthrough and legacy TCM fabric modules */
 	struct se_session	*se_sess;
 	struct se_tmr_req	*se_tmr_req;
-	/* t_task is setup to t_task_backstore in transport_init_se_cmd() */
-	struct se_transport_task *t_task;
-	struct se_transport_task t_task_backstore;
+	struct list_head	se_queue_node;
 	struct target_core_fabric_ops *se_tfo;
 	int (*transport_emulate_cdb)(struct se_cmd *);
-	void (*transport_split_cdb)(unsigned long long, u32 *, unsigned char *);
+	void (*transport_split_cdb)(unsigned long long, u32, unsigned char *);
 	void (*transport_wait_for_tasks)(struct se_cmd *, int, int);
 	void (*transport_complete_callback)(struct se_cmd *);
-} ____cacheline_aligned;
+	int (*transport_qf_callback)(struct se_cmd *);
 
-#define T_TASK(cmd)     ((cmd)->t_task)
-#define CMD_TFO(cmd)	((cmd)->se_tfo)
+	unsigned char		*t_task_cdb;
+	unsigned char		__t_task_cdb[TCM_MAX_COMMAND_SIZE];
+	unsigned long long	t_task_lba;
+	int			t_tasks_failed;
+	int			t_tasks_fua;
+	bool			t_tasks_bidi;
+	u32			t_tasks_sg_chained_no;
+	atomic_t		t_fe_count;
+	atomic_t		t_se_count;
+	atomic_t		t_task_cdbs_left;
+	atomic_t		t_task_cdbs_ex_left;
+	atomic_t		t_task_cdbs_timeout_left;
+	atomic_t		t_task_cdbs_sent;
+	atomic_t		t_transport_aborted;
+	atomic_t		t_transport_active;
+	atomic_t		t_transport_complete;
+	atomic_t		t_transport_queue_active;
+	atomic_t		t_transport_sent;
+	atomic_t		t_transport_stop;
+	atomic_t		t_transport_timeout;
+	atomic_t		transport_dev_active;
+	atomic_t		transport_lun_active;
+	atomic_t		transport_lun_fe_stop;
+	atomic_t		transport_lun_stop;
+	spinlock_t		t_state_lock;
+	struct completion	t_transport_stop_comp;
+	struct completion	transport_lun_fe_stop_comp;
+	struct completion	transport_lun_stop_comp;
+	struct scatterlist	*t_tasks_sg_chained;
+
+	/*
+	 * Used for pre-registered fabric SGL passthrough WRITE and READ
+	 * with the special SCF_PASSTHROUGH_CONTIG_TO_SG case for TCM_Loop
+	 * and other HW target mode fabric modules.
+	 */
+	struct scatterlist	*t_task_pt_sgl;
+	u32			t_task_pt_sgl_num;
+
+	struct scatterlist	*t_data_sg;
+	unsigned int		t_data_nents;
+	struct scatterlist	*t_bidi_data_sg;
+	unsigned int		t_bidi_data_nents;
+
+	/* Used for BIDI READ */
+	struct list_head	t_task_list;
+	u32			t_task_list_num;
+
+} ____cacheline_aligned;
 
 struct se_tmr_req {
 	/* Task Management function to be preformed */
@@ -617,9 +595,6 @@ struct se_session {
 	struct list_head	sess_acl_list;
 } ____cacheline_aligned;
 
-#define SE_SESS(cmd)		((cmd)->se_sess)
-#define SE_NODE_ACL(sess)	((sess)->se_node_acl)
-
 struct se_device;
 struct se_transform_info;
 struct scatterlist;
@@ -640,8 +615,6 @@ struct se_lun_acl {
 	struct se_ml_stat_grps	ml_stat_grps;
 }  ____cacheline_aligned;
 
-#define ML_STAT_GRPS(lacl)	(&(lacl)->ml_stat_grps)
-
 struct se_dev_entry {
 	bool			def_pr_registered;
 	/* See transport_lunflags_table */
@@ -688,6 +661,8 @@ struct se_dev_attrib {
 	int		emulate_reservations;
 	int		emulate_alua;
 	int		enforce_pr_isids;
+	int		is_nonrot;
+	int		emulate_rest_reord;
 	u32		hw_block_size;
 	u32		block_size;
 	u32		hw_max_sectors;
@@ -727,10 +702,10 @@ struct se_subsystem_dev {
 	/* T10 Inquiry and VPD WWN Information */
 	struct t10_wwn	t10_wwn;
 	/* T10 SPC-2 + SPC-3 Reservations */
-	struct t10_reservation_template t10_reservation;
+	struct t10_reservation t10_pr;
 	spinlock_t      se_dev_lock;
 	void            *se_dev_su_ptr;
-	struct list_head g_se_dev_list;
+	struct list_head se_dev_node;
 	struct config_group se_dev_group;
 	/* For T10 Reservations */
 	struct config_group se_dev_pr_group;
@@ -738,11 +713,6 @@ struct se_subsystem_dev {
 	struct se_dev_stat_grps dev_stat_grps;
 } ____cacheline_aligned;
 
-#define T10_ALUA(su_dev)	(&(su_dev)->t10_alua)
-#define T10_RES(su_dev)		(&(su_dev)->t10_reservation)
-#define T10_PR_OPS(su_dev)	(&(su_dev)->t10_reservation.pr_ops)
-#define DEV_STAT_GRP(dev)	(&(dev)->dev_stat_grps)
-
 struct se_device {
 	/* Set to 1 if thread is NOT sleeping on thread_sem */
 	u8			thread_active;
@@ -780,11 +750,11 @@ struct se_device {
 	atomic_t		dev_status_thr_count;
 	atomic_t		dev_hoq_count;
 	atomic_t		dev_ordered_sync;
+	atomic_t		dev_qf_count;
 	struct se_obj		dev_obj;
 	struct se_obj		dev_access_obj;
 	struct se_obj		dev_export_obj;
-	struct se_queue_obj	*dev_queue_obj;
-	struct se_queue_obj	*dev_status_queue_obj;
+	struct se_queue_obj	dev_queue_obj;
 	spinlock_t		delayed_cmd_lock;
 	spinlock_t		ordered_cmd_lock;
 	spinlock_t		execute_task_lock;
@@ -796,6 +766,7 @@ struct se_device {
 	spinlock_t		dev_status_thr_lock;
 	spinlock_t		se_port_lock;
 	spinlock_t		se_tmr_lock;
+	spinlock_t		qf_cmd_lock;
 	/* Used for legacy SPC-2 reservationsa */
 	struct se_node_acl	*dev_reserved_node_acl;
 	/* Used for ALUA Logical Unit Group membership */
@@ -809,10 +780,12 @@ struct se_device {
 	struct task_struct	*process_thread;
 	pid_t			process_thread_pid;
 	struct task_struct		*dev_mgmt_thread;
+	struct work_struct	qf_work_queue;
 	struct list_head	delayed_cmd_list;
 	struct list_head	ordered_cmd_list;
 	struct list_head	execute_task_list;
 	struct list_head	state_task_list;
+	struct list_head	qf_cmd_list;
 	/* Pointer to associated SE HBA */
 	struct se_hba		*se_hba;
 	struct se_subsystem_dev *se_sub_dev;
@@ -824,11 +797,6 @@ struct se_device {
 	struct list_head	g_se_dev_list;
 }  ____cacheline_aligned;
 
-#define SE_DEV(cmd)		((cmd)->se_lun->lun_se_dev)
-#define SU_DEV(dev)		((dev)->se_sub_dev)
-#define DEV_ATTRIB(dev)		(&(dev)->se_sub_dev->se_dev_attrib)
-#define DEV_T10_WWN(dev)	(&(dev)->se_sub_dev->t10_wwn)
-
 struct se_hba {
 	u16			hba_tpgt;
 	u32			hba_id;
@@ -837,24 +805,17 @@ struct se_hba {
 	/* Virtual iSCSI devices attached. */
 	u32			dev_count;
 	u32			hba_index;
-	atomic_t		load_balance_queue;
-	atomic_t		left_queue_depth;
-	/* Maximum queue depth the HBA can handle. */
-	atomic_t		max_queue_depth;
 	/* Pointer to transport specific host structure. */
 	void			*hba_ptr;
 	/* Linked list for struct se_device */
 	struct list_head	hba_dev_list;
-	struct list_head	hba_list;
+	struct list_head	hba_node;
 	spinlock_t		device_lock;
-	spinlock_t		hba_queue_lock;
 	struct config_group	hba_group;
 	struct mutex		hba_access_mutex;
 	struct se_subsystem_api *transport;
 }  ____cacheline_aligned;
 
-#define SE_HBA(dev)		((dev)->se_hba)
-
 struct se_port_stat_grps {
 	struct config_group stat_group;
 	struct config_group scsi_port_group;
@@ -881,9 +842,6 @@ struct se_lun {
 	struct se_port_stat_grps port_stat_grps;
 } ____cacheline_aligned;
 
-#define SE_LUN(cmd)		((cmd)->se_lun)
-#define PORT_STAT_GRP(lun)	(&(lun)->port_stat_grps)
-
 struct scsi_port_stats {
        u64     cmd_pdus;
        u64     tx_data_octets;
@@ -930,7 +888,7 @@ struct se_portal_group {
 	spinlock_t		tpg_lun_lock;
 	/* Pointer to $FABRIC_MOD portal group */
 	void			*se_tpg_fabric_ptr;
-	struct list_head	se_tpg_list;
+	struct list_head	se_tpg_node;
 	/* linked list for initiator ACL list */
 	struct list_head	acl_node_list;
 	struct se_lun		*tpg_lun_list;
@@ -949,8 +907,6 @@ struct se_portal_group {
 	struct config_group	tpg_param_group;
 } ____cacheline_aligned;
 
-#define TPG_TFO(se_tpg)	((se_tpg)->se_tpg_tfo)
-
 struct se_wwn {
 	struct target_fabric_configfs *wwn_tf;
 	struct config_group	wwn_group;
@@ -958,28 +914,4 @@ struct se_wwn {
 	struct config_group	fabric_stat_group;
 } ____cacheline_aligned;
 
-struct se_global {
-	u16			alua_lu_gps_counter;
-	int			g_sub_api_initialized;
-	u32			in_shutdown;
-	u32			alua_lu_gps_count;
-	u32			g_hba_id_counter;
-	struct config_group	target_core_hbagroup;
-	struct config_group	alua_group;
-	struct config_group	alua_lu_gps_group;
-	struct list_head	g_lu_gps_list;
-	struct list_head	g_se_tpg_list;
-	struct list_head	g_hba_list;
-	struct list_head	g_se_dev_list;
-	struct se_hba		*g_lun0_hba;
-	struct se_subsystem_dev *g_lun0_su_dev;
-	struct se_device	*g_lun0_dev;
-	struct t10_alua_lu_gp	*default_lu_gp;
-	spinlock_t		g_device_lock;
-	spinlock_t		hba_lock;
-	spinlock_t		se_tpg_lock;
-	spinlock_t		lu_gps_lock;
-	spinlock_t		plugin_class_lock;
-} ____cacheline_aligned;
-
 #endif /* TARGET_CORE_BASE_H */

include/target/target_core_device.h

@@ -1,8 +1,8 @@
 #ifndef TARGET_CORE_DEVICE_H
 #define TARGET_CORE_DEVICE_H
 
-extern int transport_get_lun_for_cmd(struct se_cmd *, unsigned char *, u32);
-extern int transport_get_lun_for_tmr(struct se_cmd *, u32);
+extern int transport_lookup_cmd_lun(struct se_cmd *, u32);
+extern int transport_lookup_tmr_lun(struct se_cmd *, u32);
 extern struct se_dev_entry *core_get_se_deve_from_rtpi(
 					struct se_node_acl *, u16);
 extern int core_free_device_list_for_node(struct se_node_acl *,
@@ -39,6 +39,8 @@ extern int se_dev_set_emulate_tas(struct se_device *, int);
 extern int se_dev_set_emulate_tpu(struct se_device *, int);
 extern int se_dev_set_emulate_tpws(struct se_device *, int);
 extern int se_dev_set_enforce_pr_isids(struct se_device *, int);
+extern int se_dev_set_is_nonrot(struct se_device *, int);
+extern int se_dev_set_emulate_rest_reord(struct se_device *dev, int);
 extern int se_dev_set_queue_depth(struct se_device *, u32);
 extern int se_dev_set_max_sectors(struct se_device *, u32);
 extern int se_dev_set_optimal_sectors(struct se_device *, u32);

include/target/target_core_fabric_ops.h

@@ -38,18 +38,12 @@ struct target_core_fabric_ops {
 	 * initially allocated in interrupt context.
 	 */
 	int (*new_cmd_map)(struct se_cmd *);
-	/*
-	 * Optional function pointer for TCM fabric modules that use
-	 * Linux/NET sockets to allocate struct iovec array to struct se_cmd
-	 */
-	int (*alloc_cmd_iovecs)(struct se_cmd *);
 	/*
 	 * Optional to release struct se_cmd and fabric dependent allocated
 	 * I/O descriptor in transport_cmd_check_stop()
 	 */
 	void (*check_stop_free)(struct se_cmd *);
-	void (*release_cmd_to_pool)(struct se_cmd *);
-	void (*release_cmd_direct)(struct se_cmd *);
+	void (*release_cmd)(struct se_cmd *);
 	/*
 	 * Called with spin_lock_bh(struct se_portal_group->session_lock held.
 	 */
@@ -70,7 +64,6 @@ struct target_core_fabric_ops {
 	void (*set_default_node_attributes)(struct se_node_acl *);
 	u32 (*get_task_tag)(struct se_cmd *);
 	int (*get_cmd_state)(struct se_cmd *);
-	void (*new_cmd_failure)(struct se_cmd *);
 	int (*queue_data_in)(struct se_cmd *);
 	int (*queue_status)(struct se_cmd *);
 	int (*queue_tm_rsp)(struct se_cmd *);

include/target/target_core_transport.h

@@ -101,6 +101,10 @@
 #define DA_ENFORCE_PR_ISIDS			1
 #define DA_STATUS_MAX_SECTORS_MIN		16
 #define DA_STATUS_MAX_SECTORS_MAX		8192
+/* By default don't report non-rotating (solid state) medium */
+#define DA_IS_NONROT				0
+/* Queue Algorithm Modifier default for restricted reordering in control mode page */
+#define DA_EMULATE_REST_REORD			0
 
 #define SE_MODE_PAGE_BUF			512
 
@@ -111,9 +115,8 @@ 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);
@@ -160,36 +163,38 @@ extern struct se_device *transport_add_device_to_core_hba(struct se_hba *,
 					struct se_subsystem_dev *, u32,
 					void *, struct se_dev_limits *,
 					const char *, const char *);
-extern void transport_device_setup_cmd(struct se_cmd *);
 extern void transport_init_se_cmd(struct se_cmd *,
 					struct target_core_fabric_ops *,
 					struct se_session *, u32, int, int,
 					unsigned char *);
+void *transport_kmap_first_data_page(struct se_cmd *cmd);
+void transport_kunmap_first_data_page(struct se_cmd *cmd);
 extern void transport_free_se_cmd(struct se_cmd *);
 extern int transport_generic_allocate_tasks(struct se_cmd *, unsigned char *);
 extern int transport_generic_handle_cdb(struct se_cmd *);
+extern int transport_handle_cdb_direct(struct se_cmd *);
 extern int transport_generic_handle_cdb_map(struct se_cmd *);
 extern int transport_generic_handle_data(struct se_cmd *);
 extern void transport_new_cmd_failure(struct se_cmd *);
 extern int transport_generic_handle_tmr(struct se_cmd *);
 extern void transport_generic_free_cmd_intr(struct se_cmd *);
 extern void __transport_stop_task_timer(struct se_task *, unsigned long *);
-extern unsigned char transport_asciihex_to_binaryhex(unsigned char val[2]);
 extern int transport_generic_map_mem_to_cmd(struct se_cmd *cmd, struct scatterlist *, u32,
 				struct scatterlist *, u32);
 extern int transport_clear_lun_from_sessions(struct se_lun *);
 extern int transport_check_aborted_status(struct se_cmd *, int);
 extern int transport_send_check_condition_and_sense(struct se_cmd *, u8, int);
 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_release_cmd(struct se_cmd *);
+extern void transport_generic_free_cmd(struct se_cmd *, 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 scatterlist *, struct se_mem *,
 					struct se_mem **, u32 *, u32 *);
 extern void transport_do_task_sg_chain(struct se_cmd *);
 extern void transport_generic_process_write(struct se_cmd *);
+extern int transport_generic_new_cmd(struct se_cmd *);
 extern int transport_generic_do_tmr(struct se_cmd *);
 /* From target_core_alua.c */
 extern int core_alua_check_nonop_delay(struct se_cmd *);
@@ -235,13 +240,13 @@ struct se_subsystem_api {
 	 */
 	int (*cdb_none)(struct se_task *);
 	/*
-	 * For SCF_SCSI_CONTROL_NONSG_IO_CDB
+	 * For SCF_SCSI_DATA_SG_IO_CDB
 	 */
-	int (*map_task_non_SG)(struct se_task *);
+	int (*map_data_SG)(struct se_task *);
 	/*
-	 * For SCF_SCSI_DATA_SG_IO_CDB and SCF_SCSI_CONTROL_SG_IO_CDB
+	 * For SCF_SCSI_CONTROL_SG_IO_CDB
 	 */
-	int (*map_task_SG)(struct se_task *);
+	int (*map_control_SG)(struct se_task *);
 	/*
 	 * attach_hba():
 	 */
@@ -292,7 +297,7 @@ struct se_subsystem_api {
 	 * drivers.  Provided out of convenience.
 	 */
 	int (*transport_complete)(struct se_task *task);
-	struct se_task *(*alloc_task)(struct se_cmd *);
+	struct se_task *(*alloc_task)(unsigned char *cdb);
 	/*
 	 * do_task():
 	 */
@@ -341,20 +346,10 @@ struct se_subsystem_api {
 	 * Get the sector_t from a subsystem backstore..
 	 */
 	sector_t (*get_blocks)(struct se_device *);
-	/*
-	 * do_se_mem_map():
-	 */
-	int (*do_se_mem_map)(struct se_task *, struct list_head *, void *,
-				struct se_mem *, struct se_mem **, u32 *, u32 *);
 	/*
 	 * get_sense_buffer():
 	 */
 	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 */