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 | 9765b1f | 2012-03-10 14:50:19 -0800 | [diff] [blame] | 12 | #define TARGET_CORE_MOD_VERSION "v4.1.0-rc2-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 |
Roland Dreier | 895f302 | 2011-12-13 14:55:33 -0800 | [diff] [blame] | 38 | #define SPC_ADD_SENSE_LEN_OFFSET 7 |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 39 | #define SPC_ASC_KEY_OFFSET 12 |
| 40 | #define SPC_ASCQ_KEY_OFFSET 13 |
| 41 | #define TRANSPORT_IQN_LEN 224 |
| 42 | /* Used by target_core_store_alua_lu_gp() and target_core_alua_lu_gp_show_attr_members() */ |
| 43 | #define LU_GROUP_NAME_BUF 256 |
| 44 | /* Used by core_alua_store_tg_pt_gp_info() and target_core_alua_tg_pt_gp_show_attr_members() */ |
| 45 | #define TG_PT_GROUP_NAME_BUF 256 |
| 46 | /* Used to parse VPD into struct t10_vpd */ |
| 47 | #define VPD_TMP_BUF_SIZE 128 |
| 48 | /* Used by transport_generic_cmd_sequencer() */ |
| 49 | #define READ_BLOCK_LEN 6 |
| 50 | #define READ_CAP_LEN 8 |
| 51 | #define READ_POSITION_LEN 20 |
| 52 | #define INQUIRY_LEN 36 |
| 53 | /* Used by transport_get_inquiry_vpd_serial() */ |
| 54 | #define INQUIRY_VPD_SERIAL_LEN 254 |
| 55 | /* Used by transport_get_inquiry_vpd_device_ident() */ |
| 56 | #define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254 |
| 57 | |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 58 | /* Attempts before moving from SHORT to LONG */ |
| 59 | #define PYX_TRANSPORT_WINDOW_CLOSED_THRESHOLD 3 |
| 60 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_SHORT 3 /* In milliseconds */ |
| 61 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_LONG 10 /* In milliseconds */ |
| 62 | |
| 63 | #define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */ |
| 64 | |
| 65 | /* |
| 66 | * struct se_subsystem_dev->su_dev_flags |
| 67 | */ |
| 68 | #define SDF_FIRMWARE_VPD_UNIT_SERIAL 0x00000001 |
| 69 | #define SDF_EMULATED_VPD_UNIT_SERIAL 0x00000002 |
| 70 | #define SDF_USING_UDEV_PATH 0x00000004 |
| 71 | #define SDF_USING_ALIAS 0x00000008 |
| 72 | |
| 73 | /* |
| 74 | * struct se_device->dev_flags |
| 75 | */ |
Nicholas Bellinger | 58d9261 | 2012-03-20 21:26:48 -0700 | [diff] [blame] | 76 | #define DF_SPC2_RESERVATIONS 0x00000001 |
| 77 | #define DF_SPC2_RESERVATIONS_WITH_ISID 0x00000002 |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 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 |
Roland Dreier | 015487b | 2012-02-13 16:18:17 -0800 | [diff] [blame] | 88 | /* Default max transfer length */ |
| 89 | #define DA_FABRIC_MAX_SECTORS 8192 |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 90 | /* Emulation for Direct Page Out */ |
| 91 | #define DA_EMULATE_DPO 0 |
| 92 | /* Emulation for Forced Unit Access WRITEs */ |
| 93 | #define DA_EMULATE_FUA_WRITE 1 |
| 94 | /* Emulation for Forced Unit Access READs */ |
| 95 | #define DA_EMULATE_FUA_READ 0 |
| 96 | /* Emulation for WriteCache and SYNCHRONIZE_CACHE */ |
| 97 | #define DA_EMULATE_WRITE_CACHE 0 |
| 98 | /* Emulation for UNIT ATTENTION Interlock Control */ |
| 99 | #define DA_EMULATE_UA_INTLLCK_CTRL 0 |
| 100 | /* Emulation for TASK_ABORTED status (TAS) by default */ |
| 101 | #define DA_EMULATE_TAS 1 |
| 102 | /* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */ |
| 103 | #define DA_EMULATE_TPU 0 |
| 104 | /* |
| 105 | * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using |
| 106 | * block/blk-lib.c:blkdev_issue_discard() |
| 107 | */ |
| 108 | #define DA_EMULATE_TPWS 0 |
| 109 | /* No Emulation for PSCSI by default */ |
| 110 | #define DA_EMULATE_RESERVATIONS 0 |
| 111 | /* No Emulation for PSCSI by default */ |
| 112 | #define DA_EMULATE_ALUA 0 |
| 113 | /* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */ |
| 114 | #define DA_ENFORCE_PR_ISIDS 1 |
| 115 | #define DA_STATUS_MAX_SECTORS_MIN 16 |
| 116 | #define DA_STATUS_MAX_SECTORS_MAX 8192 |
| 117 | /* By default don't report non-rotating (solid state) medium */ |
| 118 | #define DA_IS_NONROT 0 |
| 119 | /* Queue Algorithm Modifier default for restricted reordering in control mode page */ |
| 120 | #define DA_EMULATE_REST_REORD 0 |
| 121 | |
Roland Dreier | d95b824 | 2012-02-13 16:18:14 -0800 | [diff] [blame] | 122 | #define SE_INQUIRY_BUF 512 |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 123 | #define SE_MODE_PAGE_BUF 512 |
| 124 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 125 | /* struct se_hba->hba_flags */ |
| 126 | enum hba_flags_table { |
| 127 | HBA_FLAGS_INTERNAL_USE = 0x01, |
| 128 | HBA_FLAGS_PSCSI_MODE = 0x02, |
| 129 | }; |
| 130 | |
| 131 | /* struct se_lun->lun_status */ |
| 132 | enum transport_lun_status_table { |
| 133 | TRANSPORT_LUN_STATUS_FREE = 0, |
| 134 | TRANSPORT_LUN_STATUS_ACTIVE = 1, |
| 135 | }; |
| 136 | |
| 137 | /* struct se_portal_group->se_tpg_type */ |
| 138 | enum transport_tpg_type_table { |
| 139 | TRANSPORT_TPG_TYPE_NORMAL = 0, |
| 140 | TRANSPORT_TPG_TYPE_DISCOVERY = 1, |
| 141 | }; |
| 142 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 143 | /* Special transport agnostic struct se_cmd->t_states */ |
| 144 | enum transport_state_table { |
| 145 | TRANSPORT_NO_STATE = 0, |
| 146 | TRANSPORT_NEW_CMD = 1, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 147 | TRANSPORT_WRITE_PENDING = 3, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 148 | TRANSPORT_PROCESSING = 5, |
Christoph Hellwig | 35e0e75 | 2011-10-17 13:56:53 -0400 | [diff] [blame] | 149 | TRANSPORT_COMPLETE = 6, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 150 | TRANSPORT_ISTATE_PROCESSING = 11, |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 151 | TRANSPORT_COMPLETE_QF_WP = 18, |
Christoph Hellwig | e057f53 | 2011-10-17 13:56:41 -0400 | [diff] [blame] | 152 | TRANSPORT_COMPLETE_QF_OK = 19, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 153 | }; |
| 154 | |
| 155 | /* Used for struct se_cmd->se_cmd_flags */ |
| 156 | enum se_cmd_flags_table { |
| 157 | SCF_SUPPORTED_SAM_OPCODE = 0x00000001, |
| 158 | SCF_TRANSPORT_TASK_SENSE = 0x00000002, |
| 159 | SCF_EMULATED_TASK_SENSE = 0x00000004, |
Christoph Hellwig | 64f1db3 | 2012-05-20 11:59:11 -0400 | [diff] [blame] | 160 | SCF_SCSI_DATA_CDB = 0x00000008, |
| 161 | SCF_SCSI_TMR_CDB = 0x00000010, |
| 162 | SCF_SCSI_CDB_EXCEPTION = 0x00000020, |
| 163 | SCF_SCSI_RESERVATION_CONFLICT = 0x00000040, |
| 164 | SCF_FUA = 0x00000080, |
| 165 | SCF_SE_LUN_CMD = 0x00000100, |
Christoph Hellwig | 64f1db3 | 2012-05-20 11:59:11 -0400 | [diff] [blame] | 166 | SCF_BIDI = 0x00000400, |
| 167 | SCF_SENT_CHECK_CONDITION = 0x00000800, |
| 168 | SCF_OVERFLOW_BIT = 0x00001000, |
| 169 | SCF_UNDERFLOW_BIT = 0x00002000, |
| 170 | SCF_SENT_DELAYED_TAS = 0x00004000, |
| 171 | SCF_ALUA_NON_OPTIMIZED = 0x00008000, |
Christoph Hellwig | 64f1db3 | 2012-05-20 11:59:11 -0400 | [diff] [blame] | 172 | SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00020000, |
| 173 | SCF_ACK_KREF = 0x00040000, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 174 | }; |
| 175 | |
| 176 | /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */ |
| 177 | enum transport_lunflags_table { |
| 178 | TRANSPORT_LUNFLAGS_NO_ACCESS = 0x00, |
| 179 | TRANSPORT_LUNFLAGS_INITIATOR_ACCESS = 0x01, |
| 180 | TRANSPORT_LUNFLAGS_READ_ONLY = 0x02, |
| 181 | TRANSPORT_LUNFLAGS_READ_WRITE = 0x04, |
| 182 | }; |
| 183 | |
| 184 | /* struct se_device->dev_status */ |
| 185 | enum transport_device_status_table { |
| 186 | TRANSPORT_DEVICE_ACTIVATED = 0x01, |
| 187 | TRANSPORT_DEVICE_DEACTIVATED = 0x02, |
| 188 | TRANSPORT_DEVICE_QUEUE_FULL = 0x04, |
| 189 | TRANSPORT_DEVICE_SHUTDOWN = 0x08, |
| 190 | TRANSPORT_DEVICE_OFFLINE_ACTIVATED = 0x10, |
| 191 | TRANSPORT_DEVICE_OFFLINE_DEACTIVATED = 0x20, |
| 192 | }; |
| 193 | |
| 194 | /* |
| 195 | * Used by transport_send_check_condition_and_sense() and se_cmd->scsi_sense_reason |
| 196 | * to signal which ASC/ASCQ sense payload should be built. |
| 197 | */ |
| 198 | enum tcm_sense_reason_table { |
| 199 | TCM_NON_EXISTENT_LUN = 0x01, |
| 200 | TCM_UNSUPPORTED_SCSI_OPCODE = 0x02, |
| 201 | TCM_INCORRECT_AMOUNT_OF_DATA = 0x03, |
| 202 | TCM_UNEXPECTED_UNSOLICITED_DATA = 0x04, |
| 203 | TCM_SERVICE_CRC_ERROR = 0x05, |
| 204 | TCM_SNACK_REJECTED = 0x06, |
| 205 | TCM_SECTOR_COUNT_TOO_MANY = 0x07, |
| 206 | TCM_INVALID_CDB_FIELD = 0x08, |
| 207 | TCM_INVALID_PARAMETER_LIST = 0x09, |
| 208 | TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = 0x0a, |
| 209 | TCM_UNKNOWN_MODE_PAGE = 0x0b, |
| 210 | TCM_WRITE_PROTECTED = 0x0c, |
| 211 | TCM_CHECK_CONDITION_ABORT_CMD = 0x0d, |
| 212 | TCM_CHECK_CONDITION_UNIT_ATTENTION = 0x0e, |
| 213 | TCM_CHECK_CONDITION_NOT_READY = 0x0f, |
Nicholas Bellinger | 03e98c9 | 2011-11-04 02:36:16 -0700 | [diff] [blame] | 214 | TCM_RESERVATION_CONFLICT = 0x10, |
Roland Dreier | e2397c7 | 2012-07-16 15:34:21 -0700 | [diff] [blame] | 215 | TCM_ADDRESS_OUT_OF_RANGE = 0x11, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 216 | }; |
| 217 | |
Nicholas Bellinger | a636078 | 2011-11-18 20:36:22 -0800 | [diff] [blame] | 218 | enum target_sc_flags_table { |
| 219 | TARGET_SCF_BIDI_OP = 0x01, |
| 220 | TARGET_SCF_ACK_KREF = 0x02, |
Sebastian Andrzej Siewior | b0d7994 | 2012-01-10 14:16:59 +0100 | [diff] [blame] | 221 | TARGET_SCF_UNKNOWN_SIZE = 0x04, |
Nicholas Bellinger | a636078 | 2011-11-18 20:36:22 -0800 | [diff] [blame] | 222 | }; |
| 223 | |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 224 | /* fabric independent task management function values */ |
| 225 | enum tcm_tmreq_table { |
| 226 | TMR_ABORT_TASK = 1, |
| 227 | TMR_ABORT_TASK_SET = 2, |
| 228 | TMR_CLEAR_ACA = 3, |
| 229 | TMR_CLEAR_TASK_SET = 4, |
| 230 | TMR_LUN_RESET = 5, |
| 231 | TMR_TARGET_WARM_RESET = 6, |
| 232 | TMR_TARGET_COLD_RESET = 7, |
| 233 | TMR_FABRIC_TMR = 255, |
| 234 | }; |
| 235 | |
| 236 | /* fabric independent task management response values */ |
| 237 | enum tcm_tmrsp_table { |
| 238 | TMR_FUNCTION_COMPLETE = 0, |
| 239 | TMR_TASK_DOES_NOT_EXIST = 1, |
| 240 | TMR_LUN_DOES_NOT_EXIST = 2, |
| 241 | TMR_TASK_STILL_ALLEGIANT = 3, |
| 242 | TMR_TASK_FAILOVER_NOT_SUPPORTED = 4, |
| 243 | TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 5, |
| 244 | TMR_FUNCTION_AUTHORIZATION_FAILED = 6, |
| 245 | TMR_FUNCTION_REJECTED = 255, |
| 246 | }; |
| 247 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 248 | struct se_obj { |
| 249 | atomic_t obj_access_count; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 250 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 251 | |
| 252 | /* |
| 253 | * Used by TCM Core internally to signal if ALUA emulation is enabled or |
| 254 | * disabled, or running in with TCM/pSCSI passthrough mode |
| 255 | */ |
| 256 | typedef enum { |
| 257 | SPC_ALUA_PASSTHROUGH, |
| 258 | SPC2_ALUA_DISABLED, |
| 259 | SPC3_ALUA_EMULATED |
| 260 | } t10_alua_index_t; |
| 261 | |
| 262 | /* |
| 263 | * Used by TCM Core internally to signal if SAM Task Attribute emulation |
| 264 | * is enabled or disabled, or running in with TCM/pSCSI passthrough mode |
| 265 | */ |
| 266 | typedef enum { |
| 267 | SAM_TASK_ATTR_PASSTHROUGH, |
| 268 | SAM_TASK_ATTR_UNTAGGED, |
| 269 | SAM_TASK_ATTR_EMULATED |
| 270 | } t10_task_attr_index_t; |
| 271 | |
Nicholas Bellinger | e89d15e | 2011-02-09 15:35:03 -0800 | [diff] [blame] | 272 | /* |
| 273 | * Used for target SCSI statistics |
| 274 | */ |
| 275 | typedef enum { |
| 276 | SCSI_INST_INDEX, |
| 277 | SCSI_DEVICE_INDEX, |
| 278 | SCSI_AUTH_INTR_INDEX, |
| 279 | SCSI_INDEX_TYPE_MAX |
| 280 | } scsi_index_t; |
| 281 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 282 | struct se_cmd; |
| 283 | |
| 284 | struct t10_alua { |
| 285 | t10_alua_index_t alua_type; |
| 286 | /* ALUA Target Port Group ID */ |
| 287 | u16 alua_tg_pt_gps_counter; |
| 288 | u32 alua_tg_pt_gps_count; |
| 289 | spinlock_t tg_pt_gps_lock; |
| 290 | struct se_subsystem_dev *t10_sub_dev; |
| 291 | /* Used for default ALUA Target Port Group */ |
| 292 | struct t10_alua_tg_pt_gp *default_tg_pt_gp; |
| 293 | /* Used for default ALUA Target Port Group ConfigFS group */ |
| 294 | struct config_group alua_tg_pt_gps_group; |
| 295 | int (*alua_state_check)(struct se_cmd *, unsigned char *, u8 *); |
| 296 | struct list_head tg_pt_gps_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 297 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 298 | |
| 299 | struct t10_alua_lu_gp { |
| 300 | u16 lu_gp_id; |
| 301 | int lu_gp_valid_id; |
| 302 | u32 lu_gp_members; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 303 | atomic_t lu_gp_ref_cnt; |
| 304 | spinlock_t lu_gp_lock; |
| 305 | struct config_group lu_gp_group; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 306 | struct list_head lu_gp_node; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 307 | struct list_head lu_gp_mem_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 308 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 309 | |
| 310 | struct t10_alua_lu_gp_member { |
Dan Carpenter | 5dd7ed2 | 2011-03-14 04:06:01 -0700 | [diff] [blame] | 311 | bool lu_gp_assoc; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 312 | atomic_t lu_gp_mem_ref_cnt; |
| 313 | spinlock_t lu_gp_mem_lock; |
| 314 | struct t10_alua_lu_gp *lu_gp; |
| 315 | struct se_device *lu_gp_mem_dev; |
| 316 | struct list_head lu_gp_mem_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 317 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 318 | |
| 319 | struct t10_alua_tg_pt_gp { |
| 320 | u16 tg_pt_gp_id; |
| 321 | int tg_pt_gp_valid_id; |
| 322 | int tg_pt_gp_alua_access_status; |
| 323 | int tg_pt_gp_alua_access_type; |
| 324 | int tg_pt_gp_nonop_delay_msecs; |
| 325 | int tg_pt_gp_trans_delay_msecs; |
Nicholas Bellinger | 5b9a4d7 | 2012-05-16 22:02:34 -0700 | [diff] [blame] | 326 | int tg_pt_gp_implict_trans_secs; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 327 | int tg_pt_gp_pref; |
| 328 | int tg_pt_gp_write_metadata; |
| 329 | /* Used by struct t10_alua_tg_pt_gp->tg_pt_gp_md_buf_len */ |
| 330 | #define ALUA_MD_BUF_LEN 1024 |
| 331 | u32 tg_pt_gp_md_buf_len; |
| 332 | u32 tg_pt_gp_members; |
| 333 | atomic_t tg_pt_gp_alua_access_state; |
| 334 | atomic_t tg_pt_gp_ref_cnt; |
| 335 | spinlock_t tg_pt_gp_lock; |
| 336 | struct mutex tg_pt_gp_md_mutex; |
| 337 | struct se_subsystem_dev *tg_pt_gp_su_dev; |
| 338 | struct config_group tg_pt_gp_group; |
| 339 | struct list_head tg_pt_gp_list; |
| 340 | struct list_head tg_pt_gp_mem_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 341 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 342 | |
| 343 | struct t10_alua_tg_pt_gp_member { |
Dan Carpenter | 5dd7ed2 | 2011-03-14 04:06:01 -0700 | [diff] [blame] | 344 | bool tg_pt_gp_assoc; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 345 | atomic_t tg_pt_gp_mem_ref_cnt; |
| 346 | spinlock_t tg_pt_gp_mem_lock; |
| 347 | struct t10_alua_tg_pt_gp *tg_pt_gp; |
| 348 | struct se_port *tg_pt; |
| 349 | struct list_head tg_pt_gp_mem_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 350 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 351 | |
| 352 | struct t10_vpd { |
| 353 | unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN]; |
| 354 | int protocol_identifier_set; |
| 355 | u32 protocol_identifier; |
| 356 | u32 device_identifier_code_set; |
| 357 | u32 association; |
| 358 | u32 device_identifier_type; |
| 359 | struct list_head vpd_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 360 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 361 | |
| 362 | struct t10_wwn { |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 363 | char vendor[8]; |
| 364 | char model[16]; |
| 365 | char revision[4]; |
| 366 | char unit_serial[INQUIRY_VPD_SERIAL_LEN]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 367 | spinlock_t t10_vpd_lock; |
| 368 | struct se_subsystem_dev *t10_sub_dev; |
| 369 | struct config_group t10_wwn_group; |
| 370 | struct list_head t10_vpd_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 371 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 372 | |
| 373 | |
| 374 | /* |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 375 | * Used by TCM Core internally to signal if >= SPC-3 persistent reservations |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 376 | * emulation is enabled or disabled, or running in with TCM/pSCSI passthrough |
| 377 | * mode |
| 378 | */ |
| 379 | typedef enum { |
| 380 | SPC_PASSTHROUGH, |
| 381 | SPC2_RESERVATIONS, |
| 382 | SPC3_PERSISTENT_RESERVATIONS |
| 383 | } t10_reservations_index_t; |
| 384 | |
| 385 | struct t10_pr_registration { |
| 386 | /* Used for fabrics that contain WWN+ISID */ |
| 387 | #define PR_REG_ISID_LEN 16 |
| 388 | /* PR_REG_ISID_LEN + ',i,0x' */ |
| 389 | #define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5) |
| 390 | char pr_reg_isid[PR_REG_ISID_LEN]; |
| 391 | /* Used during APTPL metadata reading */ |
| 392 | #define PR_APTPL_MAX_IPORT_LEN 256 |
| 393 | unsigned char pr_iport[PR_APTPL_MAX_IPORT_LEN]; |
| 394 | /* Used during APTPL metadata reading */ |
| 395 | #define PR_APTPL_MAX_TPORT_LEN 256 |
| 396 | unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN]; |
| 397 | /* For writing out live meta data */ |
| 398 | unsigned char *pr_aptpl_buf; |
| 399 | u16 pr_aptpl_rpti; |
| 400 | u16 pr_reg_tpgt; |
| 401 | /* Reservation effects all target ports */ |
| 402 | int pr_reg_all_tg_pt; |
| 403 | /* Activate Persistence across Target Power Loss */ |
| 404 | int pr_reg_aptpl; |
| 405 | int pr_res_holder; |
| 406 | int pr_res_type; |
| 407 | int pr_res_scope; |
| 408 | /* Used for fabric initiator WWPNs using a ISID */ |
Dan Carpenter | 5dd7ed2 | 2011-03-14 04:06:01 -0700 | [diff] [blame] | 409 | bool isid_present_at_reg; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 410 | u32 pr_res_mapped_lun; |
| 411 | u32 pr_aptpl_target_lun; |
| 412 | u32 pr_res_generation; |
| 413 | u64 pr_reg_bin_isid; |
| 414 | u64 pr_res_key; |
| 415 | atomic_t pr_res_holders; |
| 416 | struct se_node_acl *pr_reg_nacl; |
| 417 | struct se_dev_entry *pr_reg_deve; |
| 418 | struct se_lun *pr_reg_tg_pt_lun; |
| 419 | struct list_head pr_reg_list; |
| 420 | struct list_head pr_reg_abort_list; |
| 421 | struct list_head pr_reg_aptpl_list; |
| 422 | struct list_head pr_reg_atp_list; |
| 423 | struct list_head pr_reg_atp_mem_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 424 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 425 | |
| 426 | /* |
| 427 | * This set of function pointer ops is set based upon SPC3_PERSISTENT_RESERVATIONS, |
| 428 | * SPC2_RESERVATIONS or SPC_PASSTHROUGH in drivers/target/target_core_pr.c: |
| 429 | * core_setup_reservations() |
| 430 | */ |
| 431 | struct t10_reservation_ops { |
| 432 | int (*t10_reservation_check)(struct se_cmd *, u32 *); |
| 433 | int (*t10_seq_non_holder)(struct se_cmd *, unsigned char *, u32); |
| 434 | int (*t10_pr_register)(struct se_cmd *); |
| 435 | int (*t10_pr_clear)(struct se_cmd *); |
| 436 | }; |
| 437 | |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 438 | struct t10_reservation { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 439 | /* Reservation effects all target ports */ |
| 440 | int pr_all_tg_pt; |
| 441 | /* Activate Persistence across Target Power Loss enabled |
| 442 | * for SCSI device */ |
| 443 | int pr_aptpl_active; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 444 | /* Used by struct t10_reservation->pr_aptpl_buf_len */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 445 | #define PR_APTPL_BUF_LEN 8192 |
| 446 | u32 pr_aptpl_buf_len; |
| 447 | u32 pr_generation; |
| 448 | t10_reservations_index_t res_type; |
| 449 | spinlock_t registration_lock; |
| 450 | spinlock_t aptpl_reg_lock; |
| 451 | /* |
| 452 | * This will always be set by one individual I_T Nexus. |
| 453 | * However with all_tg_pt=1, other I_T Nexus from the |
| 454 | * same initiator can access PR reg/res info on a different |
| 455 | * target port. |
| 456 | * |
| 457 | * There is also the 'All Registrants' case, where there is |
| 458 | * a single *pr_res_holder of the reservation, but all |
| 459 | * registrations are considered reservation holders. |
| 460 | */ |
| 461 | struct se_node_acl *pr_res_holder; |
| 462 | struct list_head registration_list; |
| 463 | struct list_head aptpl_reg_list; |
| 464 | struct t10_reservation_ops pr_ops; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 465 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 466 | |
Andy Grover | c8e31f2 | 2012-01-19 13:39:17 -0800 | [diff] [blame] | 467 | struct se_tmr_req { |
| 468 | /* Task Management function to be performed */ |
| 469 | u8 function; |
| 470 | /* Task Management response to send */ |
| 471 | u8 response; |
| 472 | int call_transport; |
| 473 | /* Reference to ITT that Task Mgmt should be performed */ |
| 474 | u32 ref_task_tag; |
Andy Grover | c8e31f2 | 2012-01-19 13:39:17 -0800 | [diff] [blame] | 475 | void *fabric_tmr_ptr; |
| 476 | struct se_cmd *task_cmd; |
Andy Grover | c8e31f2 | 2012-01-19 13:39:17 -0800 | [diff] [blame] | 477 | struct se_device *tmr_dev; |
| 478 | struct se_lun *tmr_lun; |
| 479 | struct list_head tmr_list; |
| 480 | }; |
| 481 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 482 | struct se_cmd { |
| 483 | /* SAM response code being sent to initiator */ |
| 484 | u8 scsi_status; |
| 485 | u8 scsi_asc; |
| 486 | u8 scsi_ascq; |
| 487 | u8 scsi_sense_reason; |
| 488 | u16 scsi_sense_length; |
| 489 | /* Delay for ALUA Active/NonOptimized state access in milliseconds */ |
| 490 | int alua_nonop_delay; |
| 491 | /* See include/linux/dma-mapping.h */ |
| 492 | enum dma_data_direction data_direction; |
| 493 | /* For SAM Task Attribute */ |
| 494 | int sam_task_attr; |
| 495 | /* Transport protocol dependent state, see transport_state_table */ |
| 496 | enum transport_state_table t_state; |
Nicholas Bellinger | a17f091 | 2011-11-02 21:52:08 -0700 | [diff] [blame] | 497 | /* 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] | 498 | unsigned check_release:1; |
| 499 | unsigned cmd_wait_set:1; |
Sebastian Andrzej Siewior | b0d7994 | 2012-01-10 14:16:59 +0100 | [diff] [blame] | 500 | unsigned unknown_data_length:1; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 501 | /* See se_cmd_flags_table */ |
| 502 | u32 se_cmd_flags; |
| 503 | u32 se_ordered_id; |
| 504 | /* Total size in bytes associated with command */ |
| 505 | u32 data_length; |
| 506 | /* SCSI Presented Data Transfer Length */ |
| 507 | u32 cmd_spdtl; |
| 508 | u32 residual_count; |
| 509 | u32 orig_fe_lun; |
| 510 | /* Persistent Reservation key */ |
| 511 | u64 pr_res_key; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 512 | /* Used for sense data */ |
| 513 | void *sense_buffer; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 514 | struct list_head se_delayed_node; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 515 | struct list_head se_lun_node; |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 516 | struct list_head se_qf_node; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 517 | struct se_device *se_dev; |
| 518 | struct se_dev_entry *se_deve; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 519 | struct se_lun *se_lun; |
| 520 | /* Only used for internal passthrough and legacy TCM fabric modules */ |
| 521 | struct se_session *se_sess; |
| 522 | struct se_tmr_req *se_tmr_req; |
Nicholas Bellinger | a17f091 | 2011-11-02 21:52:08 -0700 | [diff] [blame] | 523 | struct list_head se_cmd_list; |
| 524 | struct completion cmd_wait_comp; |
Nicholas Bellinger | 7481deb | 2011-11-12 00:32:17 -0800 | [diff] [blame] | 525 | struct kref cmd_kref; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 526 | struct target_core_fabric_ops *se_tfo; |
Christoph Hellwig | 6bb35e0 | 2012-04-23 11:35:33 -0400 | [diff] [blame] | 527 | int (*execute_cmd)(struct se_cmd *); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 528 | void (*transport_complete_callback)(struct se_cmd *); |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 529 | |
Andy Grover | a1d8b49 | 2011-05-02 17:12:10 -0700 | [diff] [blame] | 530 | unsigned char *t_task_cdb; |
| 531 | unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE]; |
| 532 | unsigned long long t_task_lba; |
Andy Grover | a1d8b49 | 2011-05-02 17:12:10 -0700 | [diff] [blame] | 533 | atomic_t t_fe_count; |
Christoph Hellwig | 7d680f3 | 2011-12-21 14:13:47 -0500 | [diff] [blame] | 534 | unsigned int transport_state; |
| 535 | #define CMD_T_ABORTED (1 << 0) |
| 536 | #define CMD_T_ACTIVE (1 << 1) |
| 537 | #define CMD_T_COMPLETE (1 << 2) |
| 538 | #define CMD_T_QUEUED (1 << 3) |
| 539 | #define CMD_T_SENT (1 << 4) |
| 540 | #define CMD_T_STOP (1 << 5) |
| 541 | #define CMD_T_FAILED (1 << 6) |
| 542 | #define CMD_T_LUN_STOP (1 << 7) |
| 543 | #define CMD_T_LUN_FE_STOP (1 << 8) |
| 544 | #define CMD_T_DEV_ACTIVE (1 << 9) |
Christoph Hellwig | cf572a9 | 2012-04-24 00:25:05 -0400 | [diff] [blame] | 545 | #define CMD_T_REQUEST_STOP (1 << 10) |
| 546 | #define CMD_T_BUSY (1 << 11) |
Andy Grover | a1d8b49 | 2011-05-02 17:12:10 -0700 | [diff] [blame] | 547 | spinlock_t t_state_lock; |
| 548 | struct completion t_transport_stop_comp; |
| 549 | struct completion transport_lun_fe_stop_comp; |
| 550 | struct completion transport_lun_stop_comp; |
Andy Grover | 05d1c7c | 2011-07-20 19:13:28 +0000 | [diff] [blame] | 551 | |
Christoph Hellwig | 35e0e75 | 2011-10-17 13:56:53 -0400 | [diff] [blame] | 552 | struct work_struct work; |
| 553 | |
Andy Grover | ec98f78 | 2011-07-20 19:28:46 +0000 | [diff] [blame] | 554 | struct scatterlist *t_data_sg; |
| 555 | unsigned int t_data_nents; |
Andy Grover | 4949314 | 2012-01-16 16:57:08 -0800 | [diff] [blame] | 556 | void *t_data_vmap; |
Andy Grover | ec98f78 | 2011-07-20 19:28:46 +0000 | [diff] [blame] | 557 | struct scatterlist *t_bidi_data_sg; |
| 558 | unsigned int t_bidi_data_nents; |
| 559 | |
Christoph Hellwig | cf572a9 | 2012-04-24 00:25:05 -0400 | [diff] [blame] | 560 | struct list_head state_list; |
| 561 | bool state_active; |
| 562 | |
| 563 | /* old task stop completion, consider merging with some of the above */ |
| 564 | struct completion task_stop_comp; |
| 565 | |
Christoph Hellwig | 5787cac | 2012-04-24 00:25:06 -0400 | [diff] [blame] | 566 | /* backend private data */ |
| 567 | void *priv; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 568 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 569 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 570 | struct se_ua { |
| 571 | u8 ua_asc; |
| 572 | u8 ua_ascq; |
| 573 | struct se_node_acl *ua_nacl; |
| 574 | struct list_head ua_dev_list; |
| 575 | struct list_head ua_nacl_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 576 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 577 | |
| 578 | struct se_node_acl { |
| 579 | char initiatorname[TRANSPORT_IQN_LEN]; |
| 580 | /* Used to signal demo mode created ACL, disabled by default */ |
Dan Carpenter | 5dd7ed2 | 2011-03-14 04:06:01 -0700 | [diff] [blame] | 581 | bool dynamic_node_acl; |
Nicholas Bellinger | 337c060 | 2012-03-10 14:36:21 -0800 | [diff] [blame] | 582 | bool acl_stop:1; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 583 | u32 queue_depth; |
| 584 | u32 acl_index; |
| 585 | u64 num_cmds; |
| 586 | u64 read_bytes; |
| 587 | u64 write_bytes; |
| 588 | spinlock_t stats_lock; |
| 589 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
| 590 | atomic_t acl_pr_ref_count; |
Jörn Engel | f208324 | 2012-03-15 15:05:40 -0400 | [diff] [blame] | 591 | struct se_dev_entry **device_list; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 592 | struct se_session *nacl_sess; |
| 593 | struct se_portal_group *se_tpg; |
| 594 | spinlock_t device_list_lock; |
| 595 | spinlock_t nacl_sess_lock; |
| 596 | struct config_group acl_group; |
| 597 | struct config_group acl_attrib_group; |
| 598 | struct config_group acl_auth_group; |
| 599 | struct config_group acl_param_group; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 600 | struct config_group acl_fabric_stat_group; |
| 601 | struct config_group *acl_default_groups[5]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 602 | struct list_head acl_list; |
| 603 | struct list_head acl_sess_list; |
Nicholas Bellinger | 0146834 | 2012-03-10 14:32:52 -0800 | [diff] [blame] | 604 | struct completion acl_free_comp; |
Nicholas Bellinger | afb999f | 2012-03-08 23:45:02 -0800 | [diff] [blame] | 605 | struct kref acl_kref; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 606 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 607 | |
| 608 | struct se_session { |
Bart Van Assche | 5f655e8 | 2011-11-08 20:46:29 +0100 | [diff] [blame] | 609 | unsigned sess_tearing_down:1; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 610 | u64 sess_bin_isid; |
| 611 | struct se_node_acl *se_node_acl; |
| 612 | struct se_portal_group *se_tpg; |
| 613 | void *fabric_sess_ptr; |
| 614 | struct list_head sess_list; |
| 615 | struct list_head sess_acl_list; |
Nicholas Bellinger | a17f091 | 2011-11-02 21:52:08 -0700 | [diff] [blame] | 616 | struct list_head sess_cmd_list; |
Nicholas Bellinger | a17f091 | 2011-11-02 21:52:08 -0700 | [diff] [blame] | 617 | spinlock_t sess_cmd_lock; |
Nicholas Bellinger | 41ac82b | 2012-02-26 22:22:10 -0800 | [diff] [blame] | 618 | struct kref sess_kref; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 619 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 620 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 621 | struct se_device; |
| 622 | struct se_transform_info; |
| 623 | struct scatterlist; |
| 624 | |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 625 | struct se_ml_stat_grps { |
| 626 | struct config_group stat_group; |
| 627 | struct config_group scsi_auth_intr_group; |
| 628 | struct config_group scsi_att_intr_port_group; |
| 629 | }; |
| 630 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 631 | struct se_lun_acl { |
| 632 | char initiatorname[TRANSPORT_IQN_LEN]; |
| 633 | u32 mapped_lun; |
| 634 | struct se_node_acl *se_lun_nacl; |
| 635 | struct se_lun *se_lun; |
| 636 | struct list_head lacl_list; |
| 637 | struct config_group se_lun_group; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 638 | struct se_ml_stat_grps ml_stat_grps; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 639 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 640 | |
| 641 | struct se_dev_entry { |
Dan Carpenter | 5dd7ed2 | 2011-03-14 04:06:01 -0700 | [diff] [blame] | 642 | bool def_pr_registered; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 643 | /* See transport_lunflags_table */ |
| 644 | u32 lun_flags; |
| 645 | u32 deve_cmds; |
| 646 | u32 mapped_lun; |
| 647 | u32 average_bytes; |
| 648 | u32 last_byte_count; |
| 649 | u32 total_cmds; |
| 650 | u32 total_bytes; |
| 651 | u64 pr_res_key; |
| 652 | u64 creation_time; |
| 653 | u32 attach_count; |
| 654 | u64 read_bytes; |
| 655 | u64 write_bytes; |
| 656 | atomic_t ua_count; |
| 657 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
| 658 | atomic_t pr_ref_count; |
| 659 | struct se_lun_acl *se_lun_acl; |
| 660 | spinlock_t ua_lock; |
| 661 | struct se_lun *se_lun; |
| 662 | struct list_head alua_port_list; |
| 663 | struct list_head ua_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 664 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 665 | |
| 666 | struct se_dev_limits { |
| 667 | /* Max supported HW queue depth */ |
| 668 | u32 hw_queue_depth; |
| 669 | /* Max supported virtual queue depth */ |
| 670 | u32 queue_depth; |
| 671 | /* From include/linux/blkdev.h for the other HW/SW limits. */ |
| 672 | struct queue_limits limits; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 673 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 674 | |
| 675 | struct se_dev_attrib { |
| 676 | int emulate_dpo; |
| 677 | int emulate_fua_write; |
| 678 | int emulate_fua_read; |
| 679 | int emulate_write_cache; |
| 680 | int emulate_ua_intlck_ctrl; |
| 681 | int emulate_tas; |
| 682 | int emulate_tpu; |
| 683 | int emulate_tpws; |
| 684 | int emulate_reservations; |
| 685 | int emulate_alua; |
| 686 | int enforce_pr_isids; |
Roland Dreier | e22a7f0 | 2011-07-05 13:34:52 -0700 | [diff] [blame] | 687 | int is_nonrot; |
Nicholas Bellinger | 5de619a | 2011-07-17 02:57:58 -0700 | [diff] [blame] | 688 | int emulate_rest_reord; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 689 | u32 hw_block_size; |
| 690 | u32 block_size; |
| 691 | u32 hw_max_sectors; |
Roland Dreier | 015487b | 2012-02-13 16:18:17 -0800 | [diff] [blame] | 692 | u32 fabric_max_sectors; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 693 | u32 optimal_sectors; |
| 694 | u32 hw_queue_depth; |
| 695 | u32 queue_depth; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 696 | u32 max_unmap_lba_count; |
| 697 | u32 max_unmap_block_desc_count; |
| 698 | u32 unmap_granularity; |
| 699 | u32 unmap_granularity_alignment; |
| 700 | struct se_subsystem_dev *da_sub_dev; |
| 701 | struct config_group da_group; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 702 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 703 | |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 704 | struct se_dev_stat_grps { |
| 705 | struct config_group stat_group; |
| 706 | struct config_group scsi_dev_group; |
| 707 | struct config_group scsi_tgt_dev_group; |
| 708 | struct config_group scsi_lu_group; |
| 709 | }; |
| 710 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 711 | struct se_subsystem_dev { |
| 712 | /* Used for struct se_subsystem_dev-->se_dev_alias, must be less than PAGE_SIZE */ |
| 713 | #define SE_DEV_ALIAS_LEN 512 |
| 714 | unsigned char se_dev_alias[SE_DEV_ALIAS_LEN]; |
| 715 | /* Used for struct se_subsystem_dev->se_dev_udev_path[], must be less than PAGE_SIZE */ |
| 716 | #define SE_UDEV_PATH_LEN 512 |
| 717 | unsigned char se_dev_udev_path[SE_UDEV_PATH_LEN]; |
| 718 | u32 su_dev_flags; |
| 719 | struct se_hba *se_dev_hba; |
| 720 | struct se_device *se_dev_ptr; |
| 721 | struct se_dev_attrib se_dev_attrib; |
| 722 | /* T10 Asymmetric Logical Unit Assignment for Target Ports */ |
| 723 | struct t10_alua t10_alua; |
| 724 | /* T10 Inquiry and VPD WWN Information */ |
| 725 | struct t10_wwn t10_wwn; |
| 726 | /* T10 SPC-2 + SPC-3 Reservations */ |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 727 | struct t10_reservation t10_pr; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 728 | spinlock_t se_dev_lock; |
| 729 | void *se_dev_su_ptr; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 730 | struct config_group se_dev_group; |
| 731 | /* For T10 Reservations */ |
| 732 | struct config_group se_dev_pr_group; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 733 | /* For target_core_stat.c groups */ |
| 734 | struct se_dev_stat_grps dev_stat_grps; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 735 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 736 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 737 | struct se_device { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 738 | /* RELATIVE TARGET PORT IDENTIFER Counter */ |
| 739 | u16 dev_rpti_counter; |
| 740 | /* Used for SAM Task Attribute ordering */ |
| 741 | u32 dev_cur_ordered_id; |
| 742 | u32 dev_flags; |
| 743 | u32 dev_port_count; |
| 744 | /* See transport_device_status_table */ |
| 745 | u32 dev_status; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 746 | /* Physical device queue depth */ |
| 747 | u32 queue_depth; |
| 748 | /* Used for SPC-2 reservations enforce of ISIDs */ |
| 749 | u64 dev_res_bin_isid; |
| 750 | t10_task_attr_index_t dev_task_attr_type; |
| 751 | /* Pointer to transport specific device structure */ |
| 752 | void *dev_ptr; |
| 753 | u32 dev_index; |
| 754 | u64 creation_time; |
| 755 | u32 num_resets; |
| 756 | u64 num_cmds; |
| 757 | u64 read_bytes; |
| 758 | u64 write_bytes; |
| 759 | spinlock_t stats_lock; |
| 760 | /* Active commands on this virtual SE device */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 761 | atomic_t simple_cmds; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 762 | atomic_t dev_ordered_id; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 763 | atomic_t dev_ordered_sync; |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 764 | atomic_t dev_qf_count; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 765 | struct se_obj dev_obj; |
| 766 | struct se_obj dev_access_obj; |
| 767 | struct se_obj dev_export_obj; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 768 | spinlock_t delayed_cmd_lock; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 769 | spinlock_t execute_task_lock; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 770 | spinlock_t dev_reservation_lock; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 771 | spinlock_t dev_status_lock; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 772 | spinlock_t se_port_lock; |
| 773 | spinlock_t se_tmr_lock; |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 774 | spinlock_t qf_cmd_lock; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 775 | /* Used for legacy SPC-2 reservationsa */ |
| 776 | struct se_node_acl *dev_reserved_node_acl; |
| 777 | /* Used for ALUA Logical Unit Group membership */ |
| 778 | struct t10_alua_lu_gp_member *dev_alua_lu_gp_mem; |
| 779 | /* Used for SPC-3 Persistent Reservations */ |
| 780 | struct t10_pr_registration *dev_pr_res_holder; |
| 781 | struct list_head dev_sep_list; |
| 782 | struct list_head dev_tmr_list; |
Christoph Hellwig | af87729 | 2012-07-08 15:58:49 -0400 | [diff] [blame] | 783 | struct workqueue_struct *tmr_wq; |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 784 | struct work_struct qf_work_queue; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 785 | struct list_head delayed_cmd_list; |
Christoph Hellwig | cf572a9 | 2012-04-24 00:25:05 -0400 | [diff] [blame] | 786 | struct list_head state_list; |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 787 | struct list_head qf_cmd_list; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 788 | /* Pointer to associated SE HBA */ |
| 789 | struct se_hba *se_hba; |
| 790 | struct se_subsystem_dev *se_sub_dev; |
| 791 | /* Pointer to template of function pointers for transport */ |
| 792 | struct se_subsystem_api *transport; |
| 793 | /* Linked list for struct se_hba struct se_device list */ |
| 794 | struct list_head dev_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 795 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 796 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 797 | struct se_hba { |
| 798 | u16 hba_tpgt; |
| 799 | u32 hba_id; |
| 800 | /* See hba_flags_table */ |
| 801 | u32 hba_flags; |
| 802 | /* Virtual iSCSI devices attached. */ |
| 803 | u32 dev_count; |
| 804 | u32 hba_index; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 805 | /* Pointer to transport specific host structure. */ |
| 806 | void *hba_ptr; |
| 807 | /* Linked list for struct se_device */ |
| 808 | struct list_head hba_dev_list; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 809 | struct list_head hba_node; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 810 | spinlock_t device_lock; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 811 | struct config_group hba_group; |
| 812 | struct mutex hba_access_mutex; |
| 813 | struct se_subsystem_api *transport; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 814 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 815 | |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 816 | struct se_port_stat_grps { |
| 817 | struct config_group stat_group; |
| 818 | struct config_group scsi_port_group; |
| 819 | struct config_group scsi_tgt_port_group; |
| 820 | struct config_group scsi_transport_group; |
| 821 | }; |
| 822 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 823 | struct se_lun { |
| 824 | /* See transport_lun_status_table */ |
| 825 | enum transport_lun_status_table lun_status; |
| 826 | u32 lun_access; |
| 827 | u32 lun_flags; |
| 828 | u32 unpacked_lun; |
| 829 | atomic_t lun_acl_count; |
| 830 | spinlock_t lun_acl_lock; |
| 831 | spinlock_t lun_cmd_lock; |
| 832 | spinlock_t lun_sep_lock; |
| 833 | struct completion lun_shutdown_comp; |
| 834 | struct list_head lun_cmd_list; |
| 835 | struct list_head lun_acl_list; |
| 836 | struct se_device *lun_se_dev; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 837 | struct se_port *lun_sep; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 838 | struct config_group lun_group; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 839 | struct se_port_stat_grps port_stat_grps; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 840 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 841 | |
Nicholas Bellinger | e89d15e | 2011-02-09 15:35:03 -0800 | [diff] [blame] | 842 | struct scsi_port_stats { |
| 843 | u64 cmd_pdus; |
| 844 | u64 tx_data_octets; |
| 845 | u64 rx_data_octets; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 846 | }; |
Nicholas Bellinger | e89d15e | 2011-02-09 15:35:03 -0800 | [diff] [blame] | 847 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 848 | struct se_port { |
| 849 | /* RELATIVE TARGET PORT IDENTIFER */ |
| 850 | u16 sep_rtpi; |
| 851 | int sep_tg_pt_secondary_stat; |
| 852 | int sep_tg_pt_secondary_write_md; |
| 853 | u32 sep_index; |
| 854 | struct scsi_port_stats sep_stats; |
| 855 | /* Used for ALUA Target Port Groups membership */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 856 | atomic_t sep_tg_pt_secondary_offline; |
| 857 | /* Used for PR ALL_TG_PT=1 */ |
| 858 | atomic_t sep_tg_pt_ref_cnt; |
| 859 | spinlock_t sep_alua_lock; |
| 860 | struct mutex sep_tg_pt_md_mutex; |
| 861 | struct t10_alua_tg_pt_gp_member *sep_alua_tg_pt_gp_mem; |
| 862 | struct se_lun *sep_lun; |
| 863 | struct se_portal_group *sep_tpg; |
| 864 | struct list_head sep_alua_list; |
| 865 | struct list_head sep_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 866 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 867 | |
| 868 | struct se_tpg_np { |
Nicholas Bellinger | 1f6fe7c | 2011-02-09 15:34:54 -0800 | [diff] [blame] | 869 | struct se_portal_group *tpg_np_parent; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 870 | struct config_group tpg_np_group; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 871 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 872 | |
| 873 | struct se_portal_group { |
| 874 | /* Type of target portal group, see transport_tpg_type_table */ |
| 875 | enum transport_tpg_type_table se_tpg_type; |
| 876 | /* Number of ACLed Initiator Nodes for this TPG */ |
| 877 | u32 num_node_acls; |
| 878 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
| 879 | atomic_t tpg_pr_ref_count; |
| 880 | /* Spinlock for adding/removing ACLed Nodes */ |
| 881 | spinlock_t acl_node_lock; |
| 882 | /* Spinlock for adding/removing sessions */ |
| 883 | spinlock_t session_lock; |
| 884 | spinlock_t tpg_lun_lock; |
| 885 | /* Pointer to $FABRIC_MOD portal group */ |
| 886 | void *se_tpg_fabric_ptr; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 887 | struct list_head se_tpg_node; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 888 | /* linked list for initiator ACL list */ |
| 889 | struct list_head acl_node_list; |
Jörn Engel | 4a5a75f | 2012-03-15 15:05:12 -0400 | [diff] [blame] | 890 | struct se_lun **tpg_lun_list; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 891 | struct se_lun tpg_virt_lun0; |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 892 | /* List of TCM sessions associated wth this TPG */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 893 | struct list_head tpg_sess_list; |
| 894 | /* Pointer to $FABRIC_MOD dependent code */ |
| 895 | struct target_core_fabric_ops *se_tpg_tfo; |
| 896 | struct se_wwn *se_tpg_wwn; |
| 897 | struct config_group tpg_group; |
| 898 | struct config_group *tpg_default_groups[6]; |
| 899 | struct config_group tpg_lun_group; |
| 900 | struct config_group tpg_np_group; |
| 901 | struct config_group tpg_acl_group; |
| 902 | struct config_group tpg_attrib_group; |
| 903 | struct config_group tpg_param_group; |
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 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 906 | struct se_wwn { |
| 907 | struct target_fabric_configfs *wwn_tf; |
| 908 | struct config_group wwn_group; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 909 | struct config_group *wwn_default_groups[2]; |
| 910 | struct config_group fabric_stat_group; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 911 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 912 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 913 | #endif /* TARGET_CORE_BASE_H */ |