Nicholas Bellinger | 3703b2c | 2011-03-18 15:39:17 -0700 | [diff] [blame] | 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 | |
Nicholas Bellinger | 3703b2c | 2011-03-18 15:39:17 -0700 | [diff] [blame] | 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 | }; |