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 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 25 struct 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 35 struct 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 45 struct 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 }; 56