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 completion tmr_done;
20	/* Sense buffer that will be mapped into outgoing status */
21	unsigned char tl_sense_buf[TRANSPORT_SENSE_BUFFER];
22};
23
 
 
 
 
 
24struct tcm_loop_nexus {
 
 
 
 
 
25	/*
26	 * Pointer to TCM session for I_T Nexus
27	 */
28	struct se_session *se_sess;
29};
30
 
 
 
 
31#define TCM_TRANSPORT_ONLINE 0
32#define TCM_TRANSPORT_OFFLINE 1
33
34struct tcm_loop_tpg {
35	unsigned short tl_tpgt;
36	unsigned short tl_transport_status;
37	enum target_prot_type tl_fabric_prot_type;
38	atomic_t tl_tpg_port_count;
39	struct se_portal_group tl_se_tpg;
40	struct tcm_loop_hba *tl_hba;
41	struct tcm_loop_nexus *tl_nexus;
42};
43
44struct tcm_loop_hba {
45	u8 tl_proto_id;
46	unsigned char tl_wwn_address[TL_WWN_ADDR_LEN];
47	struct se_hba_s *se_hba;
48	struct se_lun *tl_hba_lun;
49	struct se_port *tl_hba_lun_sep;
 
50	struct device dev;
51	struct Scsi_Host *sh;
52	struct tcm_loop_tpg tl_hba_tpgs[TL_TPGS_PER_HBA];
53	struct se_wwn tl_hba_wwn;
54};

 
 
 
 
 
 1#define TCM_LOOP_VERSION		"v2.1-rc2"
 2#define TL_WWN_ADDR_LEN			256
 3#define TL_TPGS_PER_HBA			32
 4
 5/*
 6 * Used in tcm_loop_driver_probe() for struct Scsi_Host->max_cmd_len
 7 */
 8#define TL_SCSI_MAX_CMD_LEN		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	/* Sense buffer that will be mapped into outgoing status */
21	unsigned char tl_sense_buf[TRANSPORT_SENSE_BUFFER];
22};
23
24struct tcm_loop_tmr {
25	atomic_t tmr_complete;
26	wait_queue_head_t tl_tmr_wait;
27};
28
29struct tcm_loop_nexus {
30	int it_nexus_active;
31	/*
32	 * Pointer to Linux/SCSI HBA from linux/include/scsi_host.h
33	 */
34	struct scsi_host *sh;
35	/*
36	 * Pointer to TCM session for I_T Nexus
37	 */
38	struct se_session *se_sess;
39};
40
41struct tcm_loop_nacl {
42	struct se_node_acl se_node_acl;
43};
44
45#define TCM_TRANSPORT_ONLINE 0
46#define TCM_TRANSPORT_OFFLINE 1
47
48struct tcm_loop_tpg {
49	unsigned short tl_tpgt;
50	unsigned short tl_transport_status;
 
51	atomic_t tl_tpg_port_count;
52	struct se_portal_group tl_se_tpg;
53	struct tcm_loop_hba *tl_hba;
 
54};
55
56struct tcm_loop_hba {
57	u8 tl_proto_id;
58	unsigned char tl_wwn_address[TL_WWN_ADDR_LEN];
59	struct se_hba_s *se_hba;
60	struct se_lun *tl_hba_lun;
61	struct se_port *tl_hba_lun_sep;
62	struct tcm_loop_nexus *tl_nexus;
63	struct device dev;
64	struct Scsi_Host *sh;
65	struct tcm_loop_tpg tl_hba_tpgs[TL_TPGS_PER_HBA];
66	struct se_wwn tl_hba_wwn;
67};