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