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54 lines · 1.4 KiB

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};