| #define TCM_LOOP_VERSION "v2.1-rc1" |
| #define TL_WWN_ADDR_LEN 256 |
| #define TL_TPGS_PER_HBA 32 |
| /* |
| * Defaults for struct scsi_host_template tcm_loop_driver_template |
| * |
| * We use large can_queue and cmd_per_lun here and let TCM enforce |
| * the underlying se_device_t->queue_depth. |
| */ |
| #define TL_SCSI_CAN_QUEUE 1024 |
| #define TL_SCSI_CMD_PER_LUN 1024 |
| #define TL_SCSI_MAX_SECTORS 1024 |
| #define TL_SCSI_SG_TABLESIZE 256 |
| /* |
| * Used in tcm_loop_driver_probe() for struct Scsi_Host->max_cmd_len |
| */ |
| #define TL_SCSI_MAX_CMD_LEN 32 |
| |
| #ifdef CONFIG_LOOPBACK_TARGET_CDB_DEBUG |
| # define TL_CDB_DEBUG(x...) printk(KERN_INFO x) |
| #else |
| # define TL_CDB_DEBUG(x...) |
| #endif |
| |
| struct tcm_loop_cmd { |
| /* State of Linux/SCSI CDB+Data descriptor */ |
| u32 sc_cmd_state; |
| /* Pointer to the CDB+Data descriptor from Linux/SCSI subsystem */ |
| struct scsi_cmnd *sc; |
| struct list_head *tl_cmd_list; |
| /* The TCM I/O descriptor that is accessed via container_of() */ |
| struct se_cmd tl_se_cmd; |
| /* Sense buffer that will be mapped into outgoing status */ |
| unsigned char tl_sense_buf[TRANSPORT_SENSE_BUFFER]; |
| }; |
| |
| struct tcm_loop_tmr { |
| atomic_t tmr_complete; |
| wait_queue_head_t tl_tmr_wait; |
| }; |
| |
| struct tcm_loop_nexus { |
| int it_nexus_active; |
| /* |
| * Pointer to Linux/SCSI HBA from linux/include/scsi_host.h |
| */ |
| struct scsi_host *sh; |
| /* |
| * Pointer to TCM session for I_T Nexus |
| */ |
| struct se_session *se_sess; |
| }; |
| |
| struct tcm_loop_nacl { |
| struct se_node_acl se_node_acl; |
| }; |
| |
| struct tcm_loop_tpg { |
| unsigned short tl_tpgt; |
| atomic_t tl_tpg_port_count; |
| struct se_portal_group tl_se_tpg; |
| struct tcm_loop_hba *tl_hba; |
| }; |
| |
| struct tcm_loop_hba { |
| u8 tl_proto_id; |
| unsigned char tl_wwn_address[TL_WWN_ADDR_LEN]; |
| struct se_hba_s *se_hba; |
| struct se_lun *tl_hba_lun; |
| struct se_port *tl_hba_lun_sep; |
| struct se_device_s *se_dev_hba_ptr; |
| struct tcm_loop_nexus *tl_nexus; |
| struct device dev; |
| struct Scsi_Host *sh; |
| struct tcm_loop_tpg tl_hba_tpgs[TL_TPGS_PER_HBA]; |
| struct se_wwn tl_hba_wwn; |
| }; |