1#define TCM_LOOP_VERSION		"v2.1-rc1"
 
 
 
 
 
 2#define TL_WWN_ADDR_LEN			256
 3#define TL_TPGS_PER_HBA			32
 4/*
 5 * Defaults for struct scsi_host_template tcm_loop_driver_template
 6 *
 7 * We use large can_queue and cmd_per_lun here and let TCM enforce
 8 * the underlying se_device_t->queue_depth.
 9 */
10#define TL_SCSI_CAN_QUEUE		1024
11#define TL_SCSI_CMD_PER_LUN		1024
12#define TL_SCSI_MAX_SECTORS		1024
13#define TL_SCSI_SG_TABLESIZE		256
14/*
15 * Used in tcm_loop_driver_probe() for struct Scsi_Host->max_cmd_len
16 */
17#define TL_SCSI_MAX_CMD_LEN		32
18
19struct tcm_loop_cmd {
20	/* State of Linux/SCSI CDB+Data descriptor */
21	u32 sc_cmd_state;
 
 
22	/* Pointer to the CDB+Data descriptor from Linux/SCSI subsystem */
23	struct scsi_cmnd *sc;
24	struct list_head *tl_cmd_list;
25	/* The TCM I/O descriptor that is accessed via container_of() */
26	struct se_cmd tl_se_cmd;
 
 
27	/* Sense buffer that will be mapped into outgoing status */
28	unsigned char tl_sense_buf[TRANSPORT_SENSE_BUFFER];
29};
30
31struct tcm_loop_tmr {
32	atomic_t tmr_complete;
33	wait_queue_head_t tl_tmr_wait;
34};
35
36struct tcm_loop_nexus {
37	int it_nexus_active;
38	/*
39	 * Pointer to Linux/SCSI HBA from linux/include/scsi_host.h
40	 */
41	struct scsi_host *sh;
42	/*
43	 * Pointer to TCM session for I_T Nexus
44	 */
45	struct se_session *se_sess;
46};
47
48struct tcm_loop_nacl {
49	struct se_node_acl se_node_acl;
50};
51
52struct tcm_loop_tpg {
53	unsigned short tl_tpgt;
 
 
54	atomic_t tl_tpg_port_count;
55	struct se_portal_group tl_se_tpg;
56	struct tcm_loop_hba *tl_hba;
 
57};
58
59struct tcm_loop_hba {
60	u8 tl_proto_id;
61	unsigned char tl_wwn_address[TL_WWN_ADDR_LEN];
62	struct se_hba_s *se_hba;
63	struct se_lun *tl_hba_lun;
64	struct se_port *tl_hba_lun_sep;
65	struct se_device_s *se_dev_hba_ptr;
66	struct tcm_loop_nexus *tl_nexus;
67	struct device dev;
68	struct Scsi_Host *sh;
69	struct tcm_loop_tpg tl_hba_tpgs[TL_TPGS_PER_HBA];
70	struct se_wwn tl_hba_wwn;
71};

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#include <linux/types.h>
 3#include <linux/device.h>
 4#include <target/target_core_base.h> /* struct se_cmd */
 5
 6#define TCM_LOOP_VERSION		"v2.1-rc2"
 7#define TL_WWN_ADDR_LEN			256
 8#define TL_TPGS_PER_HBA			32
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 9
10struct tcm_loop_cmd {
11	/* State of Linux/SCSI CDB+Data descriptor */
12	u32 sc_cmd_state;
13	/* Tagged command queueing */
14	u32 sc_cmd_tag;
15	/* Pointer to the CDB+Data descriptor from Linux/SCSI subsystem */
16	struct scsi_cmnd *sc;
 
17	/* The TCM I/O descriptor that is accessed via container_of() */
18	struct se_cmd tl_se_cmd;
19	struct work_struct work;
20	struct completion tmr_done;
21	/* Sense buffer that will be mapped into outgoing status */
22	unsigned char tl_sense_buf[TRANSPORT_SENSE_BUFFER];
23};
24
 
 
 
 
 
25struct tcm_loop_nexus {
 
 
 
 
 
26	/*
27	 * Pointer to TCM session for I_T Nexus
28	 */
29	struct se_session *se_sess;
30};
31
32#define TCM_TRANSPORT_ONLINE 0
33#define TCM_TRANSPORT_OFFLINE 1
 
34
35struct tcm_loop_tpg {
36	unsigned short tl_tpgt;
37	unsigned short tl_transport_status;
38	enum target_prot_type tl_fabric_prot_type;
39	atomic_t tl_tpg_port_count;
40	struct se_portal_group tl_se_tpg;
41	struct tcm_loop_hba *tl_hba;
42	struct tcm_loop_nexus *tl_nexus;
43};
44
45struct tcm_loop_hba {
46	u8 tl_proto_id;
47	unsigned char tl_wwn_address[TL_WWN_ADDR_LEN];
48	struct se_hba_s *se_hba;
49	struct se_lun *tl_hba_lun;
50	struct se_port *tl_hba_lun_sep;
 
 
51	struct device dev;
52	struct Scsi_Host *sh;
53	struct tcm_loop_tpg tl_hba_tpgs[TL_TPGS_PER_HBA];
54	struct se_wwn tl_hba_wwn;
55};