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 19 struct 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 31 struct tcm_loop_tmr { 32 atomic_t tmr_complete; 33 wait_queue_head_t tl_tmr_wait; 34 }; 35 36 struct 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 48 struct tcm_loop_nacl { 49 struct se_node_acl se_node_acl; 50 }; 51 52 struct 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 59 struct 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 }; 72