Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1 | #ifndef TARGET_CORE_BASE_H |
| 2 | #define TARGET_CORE_BASE_H |
| 3 | |
| 4 | #include <linux/in.h> |
| 5 | #include <linux/configfs.h> |
| 6 | #include <linux/dma-mapping.h> |
| 7 | #include <linux/blkdev.h> |
| 8 | #include <scsi/scsi_cmnd.h> |
| 9 | #include <net/sock.h> |
| 10 | #include <net/tcp.h> |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 11 | |
Nicholas Bellinger | fa49515 | 2011-07-22 08:24:22 +0000 | [diff] [blame] | 12 | #define TARGET_CORE_MOD_VERSION "v4.1.0-rc1-ml" |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 13 | #define TARGET_CORE_VERSION TARGET_CORE_MOD_VERSION |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 14 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 15 | /* Maximum Number of LUNs per Target Portal Group */ |
Andy Grover | d0229ae | 2011-07-08 17:04:53 -0700 | [diff] [blame] | 16 | /* Don't raise above 511 or REPORT_LUNS needs to handle >1 page */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 17 | #define TRANSPORT_MAX_LUNS_PER_TPG 256 |
| 18 | /* |
| 19 | * By default we use 32-byte CDBs in TCM Core and subsystem plugin code. |
| 20 | * |
| 21 | * Note that both include/scsi/scsi_cmnd.h:MAX_COMMAND_SIZE and |
| 22 | * include/linux/blkdev.h:BLOCK_MAX_CDB as of v2.6.36-rc4 still use |
| 23 | * 16-byte CDBs by default and require an extra allocation for |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 24 | * 32-byte CDBs to because of legacy issues. |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 25 | * |
| 26 | * Within TCM Core there are no such legacy limitiations, so we go ahead |
| 27 | * use 32-byte CDBs by default and use include/scsi/scsi.h:scsi_command_size() |
| 28 | * within all TCM Core and subsystem plugin code. |
| 29 | */ |
| 30 | #define TCM_MAX_COMMAND_SIZE 32 |
| 31 | /* |
| 32 | * From include/scsi/scsi_cmnd.h:SCSI_SENSE_BUFFERSIZE, currently |
| 33 | * defined 96, but the real limit is 252 (or 260 including the header) |
| 34 | */ |
| 35 | #define TRANSPORT_SENSE_BUFFER SCSI_SENSE_BUFFERSIZE |
| 36 | /* Used by transport_send_check_condition_and_sense() */ |
| 37 | #define SPC_SENSE_KEY_OFFSET 2 |
| 38 | #define SPC_ASC_KEY_OFFSET 12 |
| 39 | #define SPC_ASCQ_KEY_OFFSET 13 |
| 40 | #define TRANSPORT_IQN_LEN 224 |
| 41 | /* Used by target_core_store_alua_lu_gp() and target_core_alua_lu_gp_show_attr_members() */ |
| 42 | #define LU_GROUP_NAME_BUF 256 |
| 43 | /* Used by core_alua_store_tg_pt_gp_info() and target_core_alua_tg_pt_gp_show_attr_members() */ |
| 44 | #define TG_PT_GROUP_NAME_BUF 256 |
| 45 | /* Used to parse VPD into struct t10_vpd */ |
| 46 | #define VPD_TMP_BUF_SIZE 128 |
| 47 | /* Used by transport_generic_cmd_sequencer() */ |
| 48 | #define READ_BLOCK_LEN 6 |
| 49 | #define READ_CAP_LEN 8 |
| 50 | #define READ_POSITION_LEN 20 |
| 51 | #define INQUIRY_LEN 36 |
| 52 | /* Used by transport_get_inquiry_vpd_serial() */ |
| 53 | #define INQUIRY_VPD_SERIAL_LEN 254 |
| 54 | /* Used by transport_get_inquiry_vpd_device_ident() */ |
| 55 | #define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254 |
| 56 | |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 57 | /* Attempts before moving from SHORT to LONG */ |
| 58 | #define PYX_TRANSPORT_WINDOW_CLOSED_THRESHOLD 3 |
| 59 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_SHORT 3 /* In milliseconds */ |
| 60 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_LONG 10 /* In milliseconds */ |
| 61 | |
| 62 | #define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */ |
| 63 | |
| 64 | /* |
| 65 | * struct se_subsystem_dev->su_dev_flags |
| 66 | */ |
| 67 | #define SDF_FIRMWARE_VPD_UNIT_SERIAL 0x00000001 |
| 68 | #define SDF_EMULATED_VPD_UNIT_SERIAL 0x00000002 |
| 69 | #define SDF_USING_UDEV_PATH 0x00000004 |
| 70 | #define SDF_USING_ALIAS 0x00000008 |
| 71 | |
| 72 | /* |
| 73 | * struct se_device->dev_flags |
| 74 | */ |
| 75 | #define DF_READ_ONLY 0x00000001 |
| 76 | #define DF_SPC2_RESERVATIONS 0x00000002 |
| 77 | #define DF_SPC2_RESERVATIONS_WITH_ISID 0x00000004 |
| 78 | |
| 79 | /* struct se_dev_attrib sanity values */ |
| 80 | /* Default max_unmap_lba_count */ |
| 81 | #define DA_MAX_UNMAP_LBA_COUNT 0 |
| 82 | /* Default max_unmap_block_desc_count */ |
| 83 | #define DA_MAX_UNMAP_BLOCK_DESC_COUNT 0 |
| 84 | /* Default unmap_granularity */ |
| 85 | #define DA_UNMAP_GRANULARITY_DEFAULT 0 |
| 86 | /* Default unmap_granularity_alignment */ |
| 87 | #define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0 |
| 88 | /* Emulation for Direct Page Out */ |
| 89 | #define DA_EMULATE_DPO 0 |
| 90 | /* Emulation for Forced Unit Access WRITEs */ |
| 91 | #define DA_EMULATE_FUA_WRITE 1 |
| 92 | /* Emulation for Forced Unit Access READs */ |
| 93 | #define DA_EMULATE_FUA_READ 0 |
| 94 | /* Emulation for WriteCache and SYNCHRONIZE_CACHE */ |
| 95 | #define DA_EMULATE_WRITE_CACHE 0 |
| 96 | /* Emulation for UNIT ATTENTION Interlock Control */ |
| 97 | #define DA_EMULATE_UA_INTLLCK_CTRL 0 |
| 98 | /* Emulation for TASK_ABORTED status (TAS) by default */ |
| 99 | #define DA_EMULATE_TAS 1 |
| 100 | /* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */ |
| 101 | #define DA_EMULATE_TPU 0 |
| 102 | /* |
| 103 | * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using |
| 104 | * block/blk-lib.c:blkdev_issue_discard() |
| 105 | */ |
| 106 | #define DA_EMULATE_TPWS 0 |
| 107 | /* No Emulation for PSCSI by default */ |
| 108 | #define DA_EMULATE_RESERVATIONS 0 |
| 109 | /* No Emulation for PSCSI by default */ |
| 110 | #define DA_EMULATE_ALUA 0 |
| 111 | /* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */ |
| 112 | #define DA_ENFORCE_PR_ISIDS 1 |
| 113 | #define DA_STATUS_MAX_SECTORS_MIN 16 |
| 114 | #define DA_STATUS_MAX_SECTORS_MAX 8192 |
| 115 | /* By default don't report non-rotating (solid state) medium */ |
| 116 | #define DA_IS_NONROT 0 |
| 117 | /* Queue Algorithm Modifier default for restricted reordering in control mode page */ |
| 118 | #define DA_EMULATE_REST_REORD 0 |
| 119 | |
| 120 | #define SE_MODE_PAGE_BUF 512 |
| 121 | |
| 122 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 123 | /* struct se_hba->hba_flags */ |
| 124 | enum hba_flags_table { |
| 125 | HBA_FLAGS_INTERNAL_USE = 0x01, |
| 126 | HBA_FLAGS_PSCSI_MODE = 0x02, |
| 127 | }; |
| 128 | |
| 129 | /* struct se_lun->lun_status */ |
| 130 | enum transport_lun_status_table { |
| 131 | TRANSPORT_LUN_STATUS_FREE = 0, |
| 132 | TRANSPORT_LUN_STATUS_ACTIVE = 1, |
| 133 | }; |
| 134 | |
| 135 | /* struct se_portal_group->se_tpg_type */ |
| 136 | enum transport_tpg_type_table { |
| 137 | TRANSPORT_TPG_TYPE_NORMAL = 0, |
| 138 | TRANSPORT_TPG_TYPE_DISCOVERY = 1, |
| 139 | }; |
| 140 | |
Christoph Hellwig | ef804a8 | 2011-11-23 06:53:58 -0500 | [diff] [blame] | 141 | /* struct se_task->task_flags */ |
Christoph Hellwig | 6c76bf9 | 2011-10-12 11:07:03 -0400 | [diff] [blame] | 142 | enum se_task_flags { |
| 143 | TF_ACTIVE = (1 << 0), |
| 144 | TF_SENT = (1 << 1), |
Nicholas Bellinger | 2e982ab | 2011-10-23 18:46:36 -0700 | [diff] [blame] | 145 | TF_REQUEST_STOP = (1 << 2), |
Christoph Hellwig | ef804a8 | 2011-11-23 06:53:58 -0500 | [diff] [blame] | 146 | TF_HAS_SENSE = (1 << 3), |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 147 | }; |
| 148 | |
| 149 | /* Special transport agnostic struct se_cmd->t_states */ |
| 150 | enum transport_state_table { |
| 151 | TRANSPORT_NO_STATE = 0, |
| 152 | TRANSPORT_NEW_CMD = 1, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 153 | TRANSPORT_WRITE_PENDING = 3, |
| 154 | TRANSPORT_PROCESS_WRITE = 4, |
| 155 | TRANSPORT_PROCESSING = 5, |
Christoph Hellwig | 35e0e75 | 2011-10-17 13:56:53 -0400 | [diff] [blame] | 156 | TRANSPORT_COMPLETE = 6, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 157 | TRANSPORT_PROCESS_TMR = 9, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 158 | TRANSPORT_ISTATE_PROCESSING = 11, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 159 | TRANSPORT_NEW_CMD_MAP = 16, |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 160 | TRANSPORT_COMPLETE_QF_WP = 18, |
Christoph Hellwig | e057f53 | 2011-10-17 13:56:41 -0400 | [diff] [blame] | 161 | TRANSPORT_COMPLETE_QF_OK = 19, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 162 | }; |
| 163 | |
| 164 | /* Used for struct se_cmd->se_cmd_flags */ |
| 165 | enum se_cmd_flags_table { |
| 166 | SCF_SUPPORTED_SAM_OPCODE = 0x00000001, |
| 167 | SCF_TRANSPORT_TASK_SENSE = 0x00000002, |
| 168 | SCF_EMULATED_TASK_SENSE = 0x00000004, |
| 169 | SCF_SCSI_DATA_SG_IO_CDB = 0x00000008, |
| 170 | SCF_SCSI_CONTROL_SG_IO_CDB = 0x00000010, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 171 | SCF_SCSI_NON_DATA_CDB = 0x00000040, |
| 172 | SCF_SCSI_CDB_EXCEPTION = 0x00000080, |
| 173 | SCF_SCSI_RESERVATION_CONFLICT = 0x00000100, |
Christoph Hellwig | 2d3a4b5 | 2011-11-14 11:36:29 -0500 | [diff] [blame] | 174 | SCF_FUA = 0x00000200, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 175 | SCF_SE_LUN_CMD = 0x00000800, |
| 176 | SCF_SE_ALLOW_EOO = 0x00001000, |
Christoph Hellwig | 33c3faf | 2011-11-14 11:36:30 -0500 | [diff] [blame] | 177 | SCF_BIDI = 0x00002000, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 178 | SCF_SENT_CHECK_CONDITION = 0x00004000, |
| 179 | SCF_OVERFLOW_BIT = 0x00008000, |
| 180 | SCF_UNDERFLOW_BIT = 0x00010000, |
| 181 | SCF_SENT_DELAYED_TAS = 0x00020000, |
| 182 | SCF_ALUA_NON_OPTIMIZED = 0x00040000, |
| 183 | SCF_DELAYED_CMD_FROM_SAM_ATTR = 0x00080000, |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 184 | SCF_UNUSED = 0x00100000, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 185 | SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00400000, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 186 | }; |
| 187 | |
| 188 | /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */ |
| 189 | enum transport_lunflags_table { |
| 190 | TRANSPORT_LUNFLAGS_NO_ACCESS = 0x00, |
| 191 | TRANSPORT_LUNFLAGS_INITIATOR_ACCESS = 0x01, |
| 192 | TRANSPORT_LUNFLAGS_READ_ONLY = 0x02, |
| 193 | TRANSPORT_LUNFLAGS_READ_WRITE = 0x04, |
| 194 | }; |
| 195 | |
| 196 | /* struct se_device->dev_status */ |
| 197 | enum transport_device_status_table { |
| 198 | TRANSPORT_DEVICE_ACTIVATED = 0x01, |
| 199 | TRANSPORT_DEVICE_DEACTIVATED = 0x02, |
| 200 | TRANSPORT_DEVICE_QUEUE_FULL = 0x04, |
| 201 | TRANSPORT_DEVICE_SHUTDOWN = 0x08, |
| 202 | TRANSPORT_DEVICE_OFFLINE_ACTIVATED = 0x10, |
| 203 | TRANSPORT_DEVICE_OFFLINE_DEACTIVATED = 0x20, |
| 204 | }; |
| 205 | |
| 206 | /* |
| 207 | * Used by transport_send_check_condition_and_sense() and se_cmd->scsi_sense_reason |
| 208 | * to signal which ASC/ASCQ sense payload should be built. |
| 209 | */ |
| 210 | enum tcm_sense_reason_table { |
| 211 | TCM_NON_EXISTENT_LUN = 0x01, |
| 212 | TCM_UNSUPPORTED_SCSI_OPCODE = 0x02, |
| 213 | TCM_INCORRECT_AMOUNT_OF_DATA = 0x03, |
| 214 | TCM_UNEXPECTED_UNSOLICITED_DATA = 0x04, |
| 215 | TCM_SERVICE_CRC_ERROR = 0x05, |
| 216 | TCM_SNACK_REJECTED = 0x06, |
| 217 | TCM_SECTOR_COUNT_TOO_MANY = 0x07, |
| 218 | TCM_INVALID_CDB_FIELD = 0x08, |
| 219 | TCM_INVALID_PARAMETER_LIST = 0x09, |
| 220 | TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = 0x0a, |
| 221 | TCM_UNKNOWN_MODE_PAGE = 0x0b, |
| 222 | TCM_WRITE_PROTECTED = 0x0c, |
| 223 | TCM_CHECK_CONDITION_ABORT_CMD = 0x0d, |
| 224 | TCM_CHECK_CONDITION_UNIT_ATTENTION = 0x0e, |
| 225 | TCM_CHECK_CONDITION_NOT_READY = 0x0f, |
Nicholas Bellinger | 03e98c9 | 2011-11-04 02:36:16 -0700 | [diff] [blame] | 226 | TCM_RESERVATION_CONFLICT = 0x10, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 227 | }; |
| 228 | |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 229 | /* fabric independent task management function values */ |
| 230 | enum tcm_tmreq_table { |
| 231 | TMR_ABORT_TASK = 1, |
| 232 | TMR_ABORT_TASK_SET = 2, |
| 233 | TMR_CLEAR_ACA = 3, |
| 234 | TMR_CLEAR_TASK_SET = 4, |
| 235 | TMR_LUN_RESET = 5, |
| 236 | TMR_TARGET_WARM_RESET = 6, |
| 237 | TMR_TARGET_COLD_RESET = 7, |
| 238 | TMR_FABRIC_TMR = 255, |
| 239 | }; |
| 240 | |
| 241 | /* fabric independent task management response values */ |
| 242 | enum tcm_tmrsp_table { |
| 243 | TMR_FUNCTION_COMPLETE = 0, |
| 244 | TMR_TASK_DOES_NOT_EXIST = 1, |
| 245 | TMR_LUN_DOES_NOT_EXIST = 2, |
| 246 | TMR_TASK_STILL_ALLEGIANT = 3, |
| 247 | TMR_TASK_FAILOVER_NOT_SUPPORTED = 4, |
| 248 | TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 5, |
| 249 | TMR_FUNCTION_AUTHORIZATION_FAILED = 6, |
| 250 | TMR_FUNCTION_REJECTED = 255, |
| 251 | }; |
| 252 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 253 | struct se_obj { |
| 254 | atomic_t obj_access_count; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 255 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 256 | |
| 257 | /* |
| 258 | * Used by TCM Core internally to signal if ALUA emulation is enabled or |
| 259 | * disabled, or running in with TCM/pSCSI passthrough mode |
| 260 | */ |
| 261 | typedef enum { |
| 262 | SPC_ALUA_PASSTHROUGH, |
| 263 | SPC2_ALUA_DISABLED, |
| 264 | SPC3_ALUA_EMULATED |
| 265 | } t10_alua_index_t; |
| 266 | |
| 267 | /* |
| 268 | * Used by TCM Core internally to signal if SAM Task Attribute emulation |
| 269 | * is enabled or disabled, or running in with TCM/pSCSI passthrough mode |
| 270 | */ |
| 271 | typedef enum { |
| 272 | SAM_TASK_ATTR_PASSTHROUGH, |
| 273 | SAM_TASK_ATTR_UNTAGGED, |
| 274 | SAM_TASK_ATTR_EMULATED |
| 275 | } t10_task_attr_index_t; |
| 276 | |
Nicholas Bellinger | e89d15e | 2011-02-09 15:35:03 -0800 | [diff] [blame] | 277 | /* |
| 278 | * Used for target SCSI statistics |
| 279 | */ |
| 280 | typedef enum { |
| 281 | SCSI_INST_INDEX, |
| 282 | SCSI_DEVICE_INDEX, |
| 283 | SCSI_AUTH_INTR_INDEX, |
| 284 | SCSI_INDEX_TYPE_MAX |
| 285 | } scsi_index_t; |
| 286 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 287 | struct se_cmd; |
| 288 | |
| 289 | struct t10_alua { |
| 290 | t10_alua_index_t alua_type; |
| 291 | /* ALUA Target Port Group ID */ |
| 292 | u16 alua_tg_pt_gps_counter; |
| 293 | u32 alua_tg_pt_gps_count; |
| 294 | spinlock_t tg_pt_gps_lock; |
| 295 | struct se_subsystem_dev *t10_sub_dev; |
| 296 | /* Used for default ALUA Target Port Group */ |
| 297 | struct t10_alua_tg_pt_gp *default_tg_pt_gp; |
| 298 | /* Used for default ALUA Target Port Group ConfigFS group */ |
| 299 | struct config_group alua_tg_pt_gps_group; |
| 300 | int (*alua_state_check)(struct se_cmd *, unsigned char *, u8 *); |
| 301 | struct list_head tg_pt_gps_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 302 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 303 | |
| 304 | struct t10_alua_lu_gp { |
| 305 | u16 lu_gp_id; |
| 306 | int lu_gp_valid_id; |
| 307 | u32 lu_gp_members; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 308 | atomic_t lu_gp_ref_cnt; |
| 309 | spinlock_t lu_gp_lock; |
| 310 | struct config_group lu_gp_group; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 311 | struct list_head lu_gp_node; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 312 | struct list_head lu_gp_mem_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 313 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 314 | |
| 315 | struct t10_alua_lu_gp_member { |
Dan Carpenter | 5dd7ed2 | 2011-03-14 04:06:01 -0700 | [diff] [blame] | 316 | bool lu_gp_assoc; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 317 | atomic_t lu_gp_mem_ref_cnt; |
| 318 | spinlock_t lu_gp_mem_lock; |
| 319 | struct t10_alua_lu_gp *lu_gp; |
| 320 | struct se_device *lu_gp_mem_dev; |
| 321 | struct list_head lu_gp_mem_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 322 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 323 | |
| 324 | struct t10_alua_tg_pt_gp { |
| 325 | u16 tg_pt_gp_id; |
| 326 | int tg_pt_gp_valid_id; |
| 327 | int tg_pt_gp_alua_access_status; |
| 328 | int tg_pt_gp_alua_access_type; |
| 329 | int tg_pt_gp_nonop_delay_msecs; |
| 330 | int tg_pt_gp_trans_delay_msecs; |
| 331 | int tg_pt_gp_pref; |
| 332 | int tg_pt_gp_write_metadata; |
| 333 | /* Used by struct t10_alua_tg_pt_gp->tg_pt_gp_md_buf_len */ |
| 334 | #define ALUA_MD_BUF_LEN 1024 |
| 335 | u32 tg_pt_gp_md_buf_len; |
| 336 | u32 tg_pt_gp_members; |
| 337 | atomic_t tg_pt_gp_alua_access_state; |
| 338 | atomic_t tg_pt_gp_ref_cnt; |
| 339 | spinlock_t tg_pt_gp_lock; |
| 340 | struct mutex tg_pt_gp_md_mutex; |
| 341 | struct se_subsystem_dev *tg_pt_gp_su_dev; |
| 342 | struct config_group tg_pt_gp_group; |
| 343 | struct list_head tg_pt_gp_list; |
| 344 | struct list_head tg_pt_gp_mem_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 345 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 346 | |
| 347 | struct t10_alua_tg_pt_gp_member { |
Dan Carpenter | 5dd7ed2 | 2011-03-14 04:06:01 -0700 | [diff] [blame] | 348 | bool tg_pt_gp_assoc; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 349 | atomic_t tg_pt_gp_mem_ref_cnt; |
| 350 | spinlock_t tg_pt_gp_mem_lock; |
| 351 | struct t10_alua_tg_pt_gp *tg_pt_gp; |
| 352 | struct se_port *tg_pt; |
| 353 | struct list_head tg_pt_gp_mem_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 354 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 355 | |
| 356 | struct t10_vpd { |
| 357 | unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN]; |
| 358 | int protocol_identifier_set; |
| 359 | u32 protocol_identifier; |
| 360 | u32 device_identifier_code_set; |
| 361 | u32 association; |
| 362 | u32 device_identifier_type; |
| 363 | struct list_head vpd_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 364 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 365 | |
| 366 | struct t10_wwn { |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 367 | char vendor[8]; |
| 368 | char model[16]; |
| 369 | char revision[4]; |
| 370 | char unit_serial[INQUIRY_VPD_SERIAL_LEN]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 371 | spinlock_t t10_vpd_lock; |
| 372 | struct se_subsystem_dev *t10_sub_dev; |
| 373 | struct config_group t10_wwn_group; |
| 374 | struct list_head t10_vpd_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 375 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 376 | |
| 377 | |
| 378 | /* |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 379 | * Used by TCM Core internally to signal if >= SPC-3 persistent reservations |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 380 | * emulation is enabled or disabled, or running in with TCM/pSCSI passthrough |
| 381 | * mode |
| 382 | */ |
| 383 | typedef enum { |
| 384 | SPC_PASSTHROUGH, |
| 385 | SPC2_RESERVATIONS, |
| 386 | SPC3_PERSISTENT_RESERVATIONS |
| 387 | } t10_reservations_index_t; |
| 388 | |
| 389 | struct t10_pr_registration { |
| 390 | /* Used for fabrics that contain WWN+ISID */ |
| 391 | #define PR_REG_ISID_LEN 16 |
| 392 | /* PR_REG_ISID_LEN + ',i,0x' */ |
| 393 | #define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5) |
| 394 | char pr_reg_isid[PR_REG_ISID_LEN]; |
| 395 | /* Used during APTPL metadata reading */ |
| 396 | #define PR_APTPL_MAX_IPORT_LEN 256 |
| 397 | unsigned char pr_iport[PR_APTPL_MAX_IPORT_LEN]; |
| 398 | /* Used during APTPL metadata reading */ |
| 399 | #define PR_APTPL_MAX_TPORT_LEN 256 |
| 400 | unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN]; |
| 401 | /* For writing out live meta data */ |
| 402 | unsigned char *pr_aptpl_buf; |
| 403 | u16 pr_aptpl_rpti; |
| 404 | u16 pr_reg_tpgt; |
| 405 | /* Reservation effects all target ports */ |
| 406 | int pr_reg_all_tg_pt; |
| 407 | /* Activate Persistence across Target Power Loss */ |
| 408 | int pr_reg_aptpl; |
| 409 | int pr_res_holder; |
| 410 | int pr_res_type; |
| 411 | int pr_res_scope; |
| 412 | /* Used for fabric initiator WWPNs using a ISID */ |
Dan Carpenter | 5dd7ed2 | 2011-03-14 04:06:01 -0700 | [diff] [blame] | 413 | bool isid_present_at_reg; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 414 | u32 pr_res_mapped_lun; |
| 415 | u32 pr_aptpl_target_lun; |
| 416 | u32 pr_res_generation; |
| 417 | u64 pr_reg_bin_isid; |
| 418 | u64 pr_res_key; |
| 419 | atomic_t pr_res_holders; |
| 420 | struct se_node_acl *pr_reg_nacl; |
| 421 | struct se_dev_entry *pr_reg_deve; |
| 422 | struct se_lun *pr_reg_tg_pt_lun; |
| 423 | struct list_head pr_reg_list; |
| 424 | struct list_head pr_reg_abort_list; |
| 425 | struct list_head pr_reg_aptpl_list; |
| 426 | struct list_head pr_reg_atp_list; |
| 427 | struct list_head pr_reg_atp_mem_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 428 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 429 | |
| 430 | /* |
| 431 | * This set of function pointer ops is set based upon SPC3_PERSISTENT_RESERVATIONS, |
| 432 | * SPC2_RESERVATIONS or SPC_PASSTHROUGH in drivers/target/target_core_pr.c: |
| 433 | * core_setup_reservations() |
| 434 | */ |
| 435 | struct t10_reservation_ops { |
| 436 | int (*t10_reservation_check)(struct se_cmd *, u32 *); |
| 437 | int (*t10_seq_non_holder)(struct se_cmd *, unsigned char *, u32); |
| 438 | int (*t10_pr_register)(struct se_cmd *); |
| 439 | int (*t10_pr_clear)(struct se_cmd *); |
| 440 | }; |
| 441 | |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 442 | struct t10_reservation { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 443 | /* Reservation effects all target ports */ |
| 444 | int pr_all_tg_pt; |
| 445 | /* Activate Persistence across Target Power Loss enabled |
| 446 | * for SCSI device */ |
| 447 | int pr_aptpl_active; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 448 | /* Used by struct t10_reservation->pr_aptpl_buf_len */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 449 | #define PR_APTPL_BUF_LEN 8192 |
| 450 | u32 pr_aptpl_buf_len; |
| 451 | u32 pr_generation; |
| 452 | t10_reservations_index_t res_type; |
| 453 | spinlock_t registration_lock; |
| 454 | spinlock_t aptpl_reg_lock; |
| 455 | /* |
| 456 | * This will always be set by one individual I_T Nexus. |
| 457 | * However with all_tg_pt=1, other I_T Nexus from the |
| 458 | * same initiator can access PR reg/res info on a different |
| 459 | * target port. |
| 460 | * |
| 461 | * There is also the 'All Registrants' case, where there is |
| 462 | * a single *pr_res_holder of the reservation, but all |
| 463 | * registrations are considered reservation holders. |
| 464 | */ |
| 465 | struct se_node_acl *pr_res_holder; |
| 466 | struct list_head registration_list; |
| 467 | struct list_head aptpl_reg_list; |
| 468 | struct t10_reservation_ops pr_ops; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 469 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 470 | |
| 471 | struct se_queue_req { |
| 472 | int state; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 473 | struct se_cmd *cmd; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 474 | struct list_head qr_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 475 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 476 | |
| 477 | struct se_queue_obj { |
| 478 | atomic_t queue_cnt; |
| 479 | spinlock_t cmd_queue_lock; |
| 480 | struct list_head qobj_list; |
| 481 | wait_queue_head_t thread_wq; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 482 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 483 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 484 | struct se_task { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 485 | unsigned long long task_lba; |
Christoph Hellwig | 3189b06 | 2011-10-12 11:07:07 -0400 | [diff] [blame] | 486 | u32 task_sectors; |
| 487 | u32 task_size; |
| 488 | struct se_cmd *task_se_cmd; |
| 489 | struct scatterlist *task_sg; |
Christoph Hellwig | 3189b06 | 2011-10-12 11:07:07 -0400 | [diff] [blame] | 490 | u32 task_sg_nents; |
| 491 | u16 task_flags; |
Christoph Hellwig | 3189b06 | 2011-10-12 11:07:07 -0400 | [diff] [blame] | 492 | u8 task_scsi_status; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 493 | enum dma_data_direction task_data_direction; |
Christoph Hellwig | 3189b06 | 2011-10-12 11:07:07 -0400 | [diff] [blame] | 494 | struct list_head t_list; |
| 495 | struct list_head t_execute_list; |
| 496 | struct list_head t_state_list; |
Christoph Hellwig | 1880807a | 2011-11-23 06:54:36 -0500 | [diff] [blame] | 497 | bool t_state_active; |
Christoph Hellwig | 3189b06 | 2011-10-12 11:07:07 -0400 | [diff] [blame] | 498 | struct completion task_stop_comp; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 499 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 500 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 501 | struct se_cmd { |
| 502 | /* SAM response code being sent to initiator */ |
| 503 | u8 scsi_status; |
| 504 | u8 scsi_asc; |
| 505 | u8 scsi_ascq; |
| 506 | u8 scsi_sense_reason; |
| 507 | u16 scsi_sense_length; |
| 508 | /* Delay for ALUA Active/NonOptimized state access in milliseconds */ |
| 509 | int alua_nonop_delay; |
| 510 | /* See include/linux/dma-mapping.h */ |
| 511 | enum dma_data_direction data_direction; |
| 512 | /* For SAM Task Attribute */ |
| 513 | int sam_task_attr; |
| 514 | /* Transport protocol dependent state, see transport_state_table */ |
| 515 | enum transport_state_table t_state; |
Nicholas Bellinger | a17f091 | 2011-11-02 21:52:08 -0700 | [diff] [blame] | 516 | /* Used to signal cmd->se_tfo->check_release_cmd() usage per cmd */ |
Bart Van Assche | 5f655e8 | 2011-11-08 20:46:29 +0100 | [diff] [blame] | 517 | unsigned check_release:1; |
| 518 | unsigned cmd_wait_set:1; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 519 | /* See se_cmd_flags_table */ |
| 520 | u32 se_cmd_flags; |
| 521 | u32 se_ordered_id; |
| 522 | /* Total size in bytes associated with command */ |
| 523 | u32 data_length; |
| 524 | /* SCSI Presented Data Transfer Length */ |
| 525 | u32 cmd_spdtl; |
| 526 | u32 residual_count; |
| 527 | u32 orig_fe_lun; |
| 528 | /* Persistent Reservation key */ |
| 529 | u64 pr_res_key; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 530 | /* Used for sense data */ |
| 531 | void *sense_buffer; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 532 | struct list_head se_delayed_node; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 533 | struct list_head se_lun_node; |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 534 | struct list_head se_qf_node; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 535 | struct se_device *se_dev; |
| 536 | struct se_dev_entry *se_deve; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 537 | struct se_lun *se_lun; |
| 538 | /* Only used for internal passthrough and legacy TCM fabric modules */ |
| 539 | struct se_session *se_sess; |
| 540 | struct se_tmr_req *se_tmr_req; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 541 | struct list_head se_queue_node; |
Nicholas Bellinger | a17f091 | 2011-11-02 21:52:08 -0700 | [diff] [blame] | 542 | struct list_head se_cmd_list; |
| 543 | struct completion cmd_wait_comp; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 544 | struct target_core_fabric_ops *se_tfo; |
Christoph Hellwig | e76a35d | 2011-11-03 17:50:42 -0400 | [diff] [blame] | 545 | int (*execute_task)(struct se_task *); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 546 | void (*transport_complete_callback)(struct se_cmd *); |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 547 | |
Andy Grover | a1d8b49 | 2011-05-02 17:12:10 -0700 | [diff] [blame] | 548 | unsigned char *t_task_cdb; |
| 549 | unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE]; |
| 550 | unsigned long long t_task_lba; |
| 551 | int t_tasks_failed; |
Andy Grover | a1d8b49 | 2011-05-02 17:12:10 -0700 | [diff] [blame] | 552 | u32 t_tasks_sg_chained_no; |
| 553 | atomic_t t_fe_count; |
| 554 | atomic_t t_se_count; |
| 555 | atomic_t t_task_cdbs_left; |
| 556 | atomic_t t_task_cdbs_ex_left; |
Andy Grover | a1d8b49 | 2011-05-02 17:12:10 -0700 | [diff] [blame] | 557 | atomic_t t_task_cdbs_sent; |
| 558 | atomic_t t_transport_aborted; |
| 559 | atomic_t t_transport_active; |
| 560 | atomic_t t_transport_complete; |
| 561 | atomic_t t_transport_queue_active; |
| 562 | atomic_t t_transport_sent; |
| 563 | atomic_t t_transport_stop; |
Andy Grover | a1d8b49 | 2011-05-02 17:12:10 -0700 | [diff] [blame] | 564 | atomic_t transport_dev_active; |
| 565 | atomic_t transport_lun_active; |
| 566 | atomic_t transport_lun_fe_stop; |
| 567 | atomic_t transport_lun_stop; |
| 568 | spinlock_t t_state_lock; |
| 569 | struct completion t_transport_stop_comp; |
| 570 | struct completion transport_lun_fe_stop_comp; |
| 571 | struct completion transport_lun_stop_comp; |
| 572 | struct scatterlist *t_tasks_sg_chained; |
Andy Grover | 05d1c7c | 2011-07-20 19:13:28 +0000 | [diff] [blame] | 573 | |
Christoph Hellwig | 35e0e75 | 2011-10-17 13:56:53 -0400 | [diff] [blame] | 574 | struct work_struct work; |
| 575 | |
Andy Grover | ec98f78 | 2011-07-20 19:28:46 +0000 | [diff] [blame] | 576 | struct scatterlist *t_data_sg; |
| 577 | unsigned int t_data_nents; |
| 578 | struct scatterlist *t_bidi_data_sg; |
| 579 | unsigned int t_bidi_data_nents; |
| 580 | |
Andy Grover | a1d8b49 | 2011-05-02 17:12:10 -0700 | [diff] [blame] | 581 | /* Used for BIDI READ */ |
Andy Grover | a1d8b49 | 2011-05-02 17:12:10 -0700 | [diff] [blame] | 582 | struct list_head t_task_list; |
| 583 | u32 t_task_list_num; |
| 584 | |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 585 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 586 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 587 | struct se_tmr_req { |
| 588 | /* Task Management function to be preformed */ |
| 589 | u8 function; |
| 590 | /* Task Management response to send */ |
| 591 | u8 response; |
| 592 | int call_transport; |
| 593 | /* Reference to ITT that Task Mgmt should be preformed */ |
| 594 | u32 ref_task_tag; |
| 595 | /* 64-bit encoded SAM LUN from $FABRIC_MOD TMR header */ |
| 596 | u64 ref_task_lun; |
| 597 | void *fabric_tmr_ptr; |
| 598 | struct se_cmd *task_cmd; |
| 599 | struct se_cmd *ref_cmd; |
| 600 | struct se_device *tmr_dev; |
| 601 | struct se_lun *tmr_lun; |
| 602 | struct list_head tmr_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 603 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 604 | |
| 605 | struct se_ua { |
| 606 | u8 ua_asc; |
| 607 | u8 ua_ascq; |
| 608 | struct se_node_acl *ua_nacl; |
| 609 | struct list_head ua_dev_list; |
| 610 | struct list_head ua_nacl_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 611 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 612 | |
| 613 | struct se_node_acl { |
| 614 | char initiatorname[TRANSPORT_IQN_LEN]; |
| 615 | /* Used to signal demo mode created ACL, disabled by default */ |
Dan Carpenter | 5dd7ed2 | 2011-03-14 04:06:01 -0700 | [diff] [blame] | 616 | bool dynamic_node_acl; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 617 | u32 queue_depth; |
| 618 | u32 acl_index; |
| 619 | u64 num_cmds; |
| 620 | u64 read_bytes; |
| 621 | u64 write_bytes; |
| 622 | spinlock_t stats_lock; |
| 623 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
| 624 | atomic_t acl_pr_ref_count; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 625 | struct se_dev_entry *device_list; |
| 626 | struct se_session *nacl_sess; |
| 627 | struct se_portal_group *se_tpg; |
| 628 | spinlock_t device_list_lock; |
| 629 | spinlock_t nacl_sess_lock; |
| 630 | struct config_group acl_group; |
| 631 | struct config_group acl_attrib_group; |
| 632 | struct config_group acl_auth_group; |
| 633 | struct config_group acl_param_group; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 634 | struct config_group acl_fabric_stat_group; |
| 635 | struct config_group *acl_default_groups[5]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 636 | struct list_head acl_list; |
| 637 | struct list_head acl_sess_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 638 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 639 | |
| 640 | struct se_session { |
Bart Van Assche | 5f655e8 | 2011-11-08 20:46:29 +0100 | [diff] [blame] | 641 | unsigned sess_tearing_down:1; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 642 | u64 sess_bin_isid; |
| 643 | struct se_node_acl *se_node_acl; |
| 644 | struct se_portal_group *se_tpg; |
| 645 | void *fabric_sess_ptr; |
| 646 | struct list_head sess_list; |
| 647 | struct list_head sess_acl_list; |
Nicholas Bellinger | a17f091 | 2011-11-02 21:52:08 -0700 | [diff] [blame] | 648 | struct list_head sess_cmd_list; |
| 649 | struct list_head sess_wait_list; |
| 650 | spinlock_t sess_cmd_lock; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 651 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 652 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 653 | struct se_device; |
| 654 | struct se_transform_info; |
| 655 | struct scatterlist; |
| 656 | |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 657 | struct se_ml_stat_grps { |
| 658 | struct config_group stat_group; |
| 659 | struct config_group scsi_auth_intr_group; |
| 660 | struct config_group scsi_att_intr_port_group; |
| 661 | }; |
| 662 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 663 | struct se_lun_acl { |
| 664 | char initiatorname[TRANSPORT_IQN_LEN]; |
| 665 | u32 mapped_lun; |
| 666 | struct se_node_acl *se_lun_nacl; |
| 667 | struct se_lun *se_lun; |
| 668 | struct list_head lacl_list; |
| 669 | struct config_group se_lun_group; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 670 | struct se_ml_stat_grps ml_stat_grps; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 671 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 672 | |
| 673 | struct se_dev_entry { |
Dan Carpenter | 5dd7ed2 | 2011-03-14 04:06:01 -0700 | [diff] [blame] | 674 | bool def_pr_registered; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 675 | /* See transport_lunflags_table */ |
| 676 | u32 lun_flags; |
| 677 | u32 deve_cmds; |
| 678 | u32 mapped_lun; |
| 679 | u32 average_bytes; |
| 680 | u32 last_byte_count; |
| 681 | u32 total_cmds; |
| 682 | u32 total_bytes; |
| 683 | u64 pr_res_key; |
| 684 | u64 creation_time; |
| 685 | u32 attach_count; |
| 686 | u64 read_bytes; |
| 687 | u64 write_bytes; |
| 688 | atomic_t ua_count; |
| 689 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
| 690 | atomic_t pr_ref_count; |
| 691 | struct se_lun_acl *se_lun_acl; |
| 692 | spinlock_t ua_lock; |
| 693 | struct se_lun *se_lun; |
| 694 | struct list_head alua_port_list; |
| 695 | struct list_head ua_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 696 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 697 | |
| 698 | struct se_dev_limits { |
| 699 | /* Max supported HW queue depth */ |
| 700 | u32 hw_queue_depth; |
| 701 | /* Max supported virtual queue depth */ |
| 702 | u32 queue_depth; |
| 703 | /* From include/linux/blkdev.h for the other HW/SW limits. */ |
| 704 | struct queue_limits limits; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 705 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 706 | |
| 707 | struct se_dev_attrib { |
| 708 | int emulate_dpo; |
| 709 | int emulate_fua_write; |
| 710 | int emulate_fua_read; |
| 711 | int emulate_write_cache; |
| 712 | int emulate_ua_intlck_ctrl; |
| 713 | int emulate_tas; |
| 714 | int emulate_tpu; |
| 715 | int emulate_tpws; |
| 716 | int emulate_reservations; |
| 717 | int emulate_alua; |
| 718 | int enforce_pr_isids; |
Roland Dreier | e22a7f0 | 2011-07-05 13:34:52 -0700 | [diff] [blame] | 719 | int is_nonrot; |
Nicholas Bellinger | 5de619a | 2011-07-17 02:57:58 -0700 | [diff] [blame] | 720 | int emulate_rest_reord; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 721 | u32 hw_block_size; |
| 722 | u32 block_size; |
| 723 | u32 hw_max_sectors; |
| 724 | u32 max_sectors; |
| 725 | u32 optimal_sectors; |
| 726 | u32 hw_queue_depth; |
| 727 | u32 queue_depth; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 728 | u32 max_unmap_lba_count; |
| 729 | u32 max_unmap_block_desc_count; |
| 730 | u32 unmap_granularity; |
| 731 | u32 unmap_granularity_alignment; |
| 732 | struct se_subsystem_dev *da_sub_dev; |
| 733 | struct config_group da_group; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 734 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 735 | |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 736 | struct se_dev_stat_grps { |
| 737 | struct config_group stat_group; |
| 738 | struct config_group scsi_dev_group; |
| 739 | struct config_group scsi_tgt_dev_group; |
| 740 | struct config_group scsi_lu_group; |
| 741 | }; |
| 742 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 743 | struct se_subsystem_dev { |
| 744 | /* Used for struct se_subsystem_dev-->se_dev_alias, must be less than PAGE_SIZE */ |
| 745 | #define SE_DEV_ALIAS_LEN 512 |
| 746 | unsigned char se_dev_alias[SE_DEV_ALIAS_LEN]; |
| 747 | /* Used for struct se_subsystem_dev->se_dev_udev_path[], must be less than PAGE_SIZE */ |
| 748 | #define SE_UDEV_PATH_LEN 512 |
| 749 | unsigned char se_dev_udev_path[SE_UDEV_PATH_LEN]; |
| 750 | u32 su_dev_flags; |
| 751 | struct se_hba *se_dev_hba; |
| 752 | struct se_device *se_dev_ptr; |
| 753 | struct se_dev_attrib se_dev_attrib; |
| 754 | /* T10 Asymmetric Logical Unit Assignment for Target Ports */ |
| 755 | struct t10_alua t10_alua; |
| 756 | /* T10 Inquiry and VPD WWN Information */ |
| 757 | struct t10_wwn t10_wwn; |
| 758 | /* T10 SPC-2 + SPC-3 Reservations */ |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 759 | struct t10_reservation t10_pr; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 760 | spinlock_t se_dev_lock; |
| 761 | void *se_dev_su_ptr; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 762 | struct config_group se_dev_group; |
| 763 | /* For T10 Reservations */ |
| 764 | struct config_group se_dev_pr_group; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 765 | /* For target_core_stat.c groups */ |
| 766 | struct se_dev_stat_grps dev_stat_grps; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 767 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 768 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 769 | struct se_device { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 770 | /* RELATIVE TARGET PORT IDENTIFER Counter */ |
| 771 | u16 dev_rpti_counter; |
| 772 | /* Used for SAM Task Attribute ordering */ |
| 773 | u32 dev_cur_ordered_id; |
| 774 | u32 dev_flags; |
| 775 | u32 dev_port_count; |
| 776 | /* See transport_device_status_table */ |
| 777 | u32 dev_status; |
| 778 | u32 dev_tcq_window_closed; |
| 779 | /* Physical device queue depth */ |
| 780 | u32 queue_depth; |
| 781 | /* Used for SPC-2 reservations enforce of ISIDs */ |
| 782 | u64 dev_res_bin_isid; |
| 783 | t10_task_attr_index_t dev_task_attr_type; |
| 784 | /* Pointer to transport specific device structure */ |
| 785 | void *dev_ptr; |
| 786 | u32 dev_index; |
| 787 | u64 creation_time; |
| 788 | u32 num_resets; |
| 789 | u64 num_cmds; |
| 790 | u64 read_bytes; |
| 791 | u64 write_bytes; |
| 792 | spinlock_t stats_lock; |
| 793 | /* Active commands on this virtual SE device */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 794 | atomic_t simple_cmds; |
| 795 | atomic_t depth_left; |
| 796 | atomic_t dev_ordered_id; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 797 | atomic_t execute_tasks; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 798 | atomic_t dev_ordered_sync; |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 799 | atomic_t dev_qf_count; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 800 | struct se_obj dev_obj; |
| 801 | struct se_obj dev_access_obj; |
| 802 | struct se_obj dev_export_obj; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 803 | struct se_queue_obj dev_queue_obj; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 804 | spinlock_t delayed_cmd_lock; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 805 | spinlock_t execute_task_lock; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 806 | spinlock_t dev_reservation_lock; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 807 | spinlock_t dev_status_lock; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 808 | spinlock_t se_port_lock; |
| 809 | spinlock_t se_tmr_lock; |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 810 | spinlock_t qf_cmd_lock; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 811 | /* Used for legacy SPC-2 reservationsa */ |
| 812 | struct se_node_acl *dev_reserved_node_acl; |
| 813 | /* Used for ALUA Logical Unit Group membership */ |
| 814 | struct t10_alua_lu_gp_member *dev_alua_lu_gp_mem; |
| 815 | /* Used for SPC-3 Persistent Reservations */ |
| 816 | struct t10_pr_registration *dev_pr_res_holder; |
| 817 | struct list_head dev_sep_list; |
| 818 | struct list_head dev_tmr_list; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 819 | /* Pointer to descriptor for processing thread */ |
| 820 | struct task_struct *process_thread; |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 821 | struct work_struct qf_work_queue; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 822 | struct list_head delayed_cmd_list; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 823 | struct list_head execute_task_list; |
| 824 | struct list_head state_task_list; |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 825 | struct list_head qf_cmd_list; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 826 | /* Pointer to associated SE HBA */ |
| 827 | struct se_hba *se_hba; |
| 828 | struct se_subsystem_dev *se_sub_dev; |
| 829 | /* Pointer to template of function pointers for transport */ |
| 830 | struct se_subsystem_api *transport; |
| 831 | /* Linked list for struct se_hba struct se_device list */ |
| 832 | struct list_head dev_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 833 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 834 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 835 | struct se_hba { |
| 836 | u16 hba_tpgt; |
| 837 | u32 hba_id; |
| 838 | /* See hba_flags_table */ |
| 839 | u32 hba_flags; |
| 840 | /* Virtual iSCSI devices attached. */ |
| 841 | u32 dev_count; |
| 842 | u32 hba_index; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 843 | /* Pointer to transport specific host structure. */ |
| 844 | void *hba_ptr; |
| 845 | /* Linked list for struct se_device */ |
| 846 | struct list_head hba_dev_list; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 847 | struct list_head hba_node; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 848 | spinlock_t device_lock; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 849 | struct config_group hba_group; |
| 850 | struct mutex hba_access_mutex; |
| 851 | struct se_subsystem_api *transport; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 852 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 853 | |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 854 | struct se_port_stat_grps { |
| 855 | struct config_group stat_group; |
| 856 | struct config_group scsi_port_group; |
| 857 | struct config_group scsi_tgt_port_group; |
| 858 | struct config_group scsi_transport_group; |
| 859 | }; |
| 860 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 861 | struct se_lun { |
| 862 | /* See transport_lun_status_table */ |
| 863 | enum transport_lun_status_table lun_status; |
| 864 | u32 lun_access; |
| 865 | u32 lun_flags; |
| 866 | u32 unpacked_lun; |
| 867 | atomic_t lun_acl_count; |
| 868 | spinlock_t lun_acl_lock; |
| 869 | spinlock_t lun_cmd_lock; |
| 870 | spinlock_t lun_sep_lock; |
| 871 | struct completion lun_shutdown_comp; |
| 872 | struct list_head lun_cmd_list; |
| 873 | struct list_head lun_acl_list; |
| 874 | struct se_device *lun_se_dev; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 875 | struct se_port *lun_sep; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 876 | struct config_group lun_group; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 877 | struct se_port_stat_grps port_stat_grps; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 878 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 879 | |
Nicholas Bellinger | e89d15e | 2011-02-09 15:35:03 -0800 | [diff] [blame] | 880 | struct scsi_port_stats { |
| 881 | u64 cmd_pdus; |
| 882 | u64 tx_data_octets; |
| 883 | u64 rx_data_octets; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 884 | }; |
Nicholas Bellinger | e89d15e | 2011-02-09 15:35:03 -0800 | [diff] [blame] | 885 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 886 | struct se_port { |
| 887 | /* RELATIVE TARGET PORT IDENTIFER */ |
| 888 | u16 sep_rtpi; |
| 889 | int sep_tg_pt_secondary_stat; |
| 890 | int sep_tg_pt_secondary_write_md; |
| 891 | u32 sep_index; |
| 892 | struct scsi_port_stats sep_stats; |
| 893 | /* Used for ALUA Target Port Groups membership */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 894 | atomic_t sep_tg_pt_secondary_offline; |
| 895 | /* Used for PR ALL_TG_PT=1 */ |
| 896 | atomic_t sep_tg_pt_ref_cnt; |
| 897 | spinlock_t sep_alua_lock; |
| 898 | struct mutex sep_tg_pt_md_mutex; |
| 899 | struct t10_alua_tg_pt_gp_member *sep_alua_tg_pt_gp_mem; |
| 900 | struct se_lun *sep_lun; |
| 901 | struct se_portal_group *sep_tpg; |
| 902 | struct list_head sep_alua_list; |
| 903 | struct list_head sep_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 904 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 905 | |
| 906 | struct se_tpg_np { |
Nicholas Bellinger | 1f6fe7c | 2011-02-09 15:34:54 -0800 | [diff] [blame] | 907 | struct se_portal_group *tpg_np_parent; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 908 | struct config_group tpg_np_group; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 909 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 910 | |
| 911 | struct se_portal_group { |
| 912 | /* Type of target portal group, see transport_tpg_type_table */ |
| 913 | enum transport_tpg_type_table se_tpg_type; |
| 914 | /* Number of ACLed Initiator Nodes for this TPG */ |
| 915 | u32 num_node_acls; |
| 916 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
| 917 | atomic_t tpg_pr_ref_count; |
| 918 | /* Spinlock for adding/removing ACLed Nodes */ |
| 919 | spinlock_t acl_node_lock; |
| 920 | /* Spinlock for adding/removing sessions */ |
| 921 | spinlock_t session_lock; |
| 922 | spinlock_t tpg_lun_lock; |
| 923 | /* Pointer to $FABRIC_MOD portal group */ |
| 924 | void *se_tpg_fabric_ptr; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 925 | struct list_head se_tpg_node; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 926 | /* linked list for initiator ACL list */ |
| 927 | struct list_head acl_node_list; |
| 928 | struct se_lun *tpg_lun_list; |
| 929 | struct se_lun tpg_virt_lun0; |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 930 | /* List of TCM sessions associated wth this TPG */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 931 | struct list_head tpg_sess_list; |
| 932 | /* Pointer to $FABRIC_MOD dependent code */ |
| 933 | struct target_core_fabric_ops *se_tpg_tfo; |
| 934 | struct se_wwn *se_tpg_wwn; |
| 935 | struct config_group tpg_group; |
| 936 | struct config_group *tpg_default_groups[6]; |
| 937 | struct config_group tpg_lun_group; |
| 938 | struct config_group tpg_np_group; |
| 939 | struct config_group tpg_acl_group; |
| 940 | struct config_group tpg_attrib_group; |
| 941 | struct config_group tpg_param_group; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 942 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 943 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 944 | struct se_wwn { |
| 945 | struct target_fabric_configfs *wwn_tf; |
| 946 | struct config_group wwn_group; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 947 | struct config_group *wwn_default_groups[2]; |
| 948 | struct config_group fabric_stat_group; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame^] | 949 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 950 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 951 | #endif /* TARGET_CORE_BASE_H */ |