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 | |
10 | struct 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 | |
24 | struct 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 | |
34 | struct 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 | |
44 | struct 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 | }; |
55 | |