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> |
Nicholas Bellinger | c0add7f | 2013-06-07 17:38:58 -0700 | [diff] [blame] | 8 | #include <linux/percpu_ida.h> |
Sagi Grimberg | fe052a1 | 2015-06-29 13:08:19 +0300 | [diff] [blame] | 9 | #include <linux/t10-pi.h> |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 10 | #include <net/sock.h> |
| 11 | #include <net/tcp.h> |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 12 | |
Nicholas Bellinger | 2ec1e9e | 2015-06-23 00:45:14 -0700 | [diff] [blame] | 13 | #define TARGET_CORE_VERSION "v5.0" |
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 | /* |
Bart Van Assche | 8d3a824 | 2015-05-08 10:08:55 +0200 | [diff] [blame] | 16 | * Maximum size of a CDB that can be stored in se_cmd without allocating |
| 17 | * memory dynamically for the CDB. |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 18 | */ |
| 19 | #define TCM_MAX_COMMAND_SIZE 32 |
| 20 | /* |
| 21 | * From include/scsi/scsi_cmnd.h:SCSI_SENSE_BUFFERSIZE, currently |
| 22 | * defined 96, but the real limit is 252 (or 260 including the header) |
| 23 | */ |
Bart Van Assche | ba92999 | 2015-05-08 10:11:12 +0200 | [diff] [blame] | 24 | #define TRANSPORT_SENSE_BUFFER 96 |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 25 | /* Used by transport_send_check_condition_and_sense() */ |
| 26 | #define SPC_SENSE_KEY_OFFSET 2 |
Roland Dreier | 895f302 | 2011-12-13 14:55:33 -0800 | [diff] [blame] | 27 | #define SPC_ADD_SENSE_LEN_OFFSET 7 |
Sagi Grimberg | 76736db | 2014-01-23 19:29:38 +0200 | [diff] [blame] | 28 | #define SPC_DESC_TYPE_OFFSET 8 |
| 29 | #define SPC_ADDITIONAL_DESC_LEN_OFFSET 9 |
| 30 | #define SPC_VALIDITY_OFFSET 10 |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 31 | #define SPC_ASC_KEY_OFFSET 12 |
| 32 | #define SPC_ASCQ_KEY_OFFSET 13 |
| 33 | #define TRANSPORT_IQN_LEN 224 |
| 34 | /* Used by target_core_store_alua_lu_gp() and target_core_alua_lu_gp_show_attr_members() */ |
| 35 | #define LU_GROUP_NAME_BUF 256 |
| 36 | /* Used by core_alua_store_tg_pt_gp_info() and target_core_alua_tg_pt_gp_show_attr_members() */ |
| 37 | #define TG_PT_GROUP_NAME_BUF 256 |
| 38 | /* Used to parse VPD into struct t10_vpd */ |
Dan Carpenter | 703d641 | 2013-01-18 16:05:12 +0300 | [diff] [blame] | 39 | #define VPD_TMP_BUF_SIZE 254 |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 40 | /* Used by transport_generic_cmd_sequencer() */ |
| 41 | #define READ_BLOCK_LEN 6 |
| 42 | #define READ_CAP_LEN 8 |
| 43 | #define READ_POSITION_LEN 20 |
| 44 | #define INQUIRY_LEN 36 |
| 45 | /* Used by transport_get_inquiry_vpd_serial() */ |
| 46 | #define INQUIRY_VPD_SERIAL_LEN 254 |
| 47 | /* Used by transport_get_inquiry_vpd_device_ident() */ |
| 48 | #define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254 |
| 49 | |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 50 | /* Attempts before moving from SHORT to LONG */ |
| 51 | #define PYX_TRANSPORT_WINDOW_CLOSED_THRESHOLD 3 |
| 52 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_SHORT 3 /* In milliseconds */ |
| 53 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_LONG 10 /* In milliseconds */ |
| 54 | |
| 55 | #define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */ |
| 56 | |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 57 | /* struct se_dev_attrib sanity values */ |
| 58 | /* Default max_unmap_lba_count */ |
| 59 | #define DA_MAX_UNMAP_LBA_COUNT 0 |
| 60 | /* Default max_unmap_block_desc_count */ |
| 61 | #define DA_MAX_UNMAP_BLOCK_DESC_COUNT 0 |
| 62 | /* Default unmap_granularity */ |
| 63 | #define DA_UNMAP_GRANULARITY_DEFAULT 0 |
| 64 | /* Default unmap_granularity_alignment */ |
| 65 | #define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0 |
Jamie Pocas | e6f4163 | 2015-11-29 14:44:57 -0800 | [diff] [blame] | 66 | /* Default unmap_zeroes_data */ |
| 67 | #define DA_UNMAP_ZEROES_DATA_DEFAULT 0 |
Nicholas Bellinger | 773cbaf | 2012-11-15 11:02:49 -0800 | [diff] [blame] | 68 | /* Default max_write_same_len, disabled by default */ |
| 69 | #define DA_MAX_WRITE_SAME_LEN 0 |
Tregaron Bayly | adfa957 | 2013-01-31 15:30:24 -0700 | [diff] [blame] | 70 | /* Use a model alias based on the configfs backend device name */ |
| 71 | #define DA_EMULATE_MODEL_ALIAS 0 |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 72 | /* Emulation for WriteCache and SYNCHRONIZE_CACHE */ |
| 73 | #define DA_EMULATE_WRITE_CACHE 0 |
| 74 | /* Emulation for UNIT ATTENTION Interlock Control */ |
| 75 | #define DA_EMULATE_UA_INTLLCK_CTRL 0 |
| 76 | /* Emulation for TASK_ABORTED status (TAS) by default */ |
| 77 | #define DA_EMULATE_TAS 1 |
| 78 | /* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */ |
| 79 | #define DA_EMULATE_TPU 0 |
| 80 | /* |
| 81 | * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using |
| 82 | * block/blk-lib.c:blkdev_issue_discard() |
| 83 | */ |
| 84 | #define DA_EMULATE_TPWS 0 |
Nicholas Bellinger | 0123a9e | 2013-08-20 14:24:09 -0700 | [diff] [blame] | 85 | /* Emulation for CompareAndWrite (AtomicTestandSet) by default */ |
| 86 | #define DA_EMULATE_CAW 1 |
Nicholas Bellinger | d397a44 | 2013-08-22 14:17:20 -0700 | [diff] [blame] | 87 | /* Emulation for 3rd Party Copy (ExtendedCopy) by default */ |
| 88 | #define DA_EMULATE_3PC 1 |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 89 | /* No Emulation for PSCSI by default */ |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 90 | #define DA_EMULATE_ALUA 0 |
| 91 | /* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */ |
| 92 | #define DA_ENFORCE_PR_ISIDS 1 |
Nicholas Bellinger | 92404e6 | 2014-10-04 01:06:08 +0000 | [diff] [blame] | 93 | /* Force SPC-3 PR Activate Persistence across Target Power Loss */ |
| 94 | #define DA_FORCE_PR_APTPL 0 |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 95 | #define DA_STATUS_MAX_SECTORS_MIN 16 |
| 96 | #define DA_STATUS_MAX_SECTORS_MAX 8192 |
| 97 | /* By default don't report non-rotating (solid state) medium */ |
| 98 | #define DA_IS_NONROT 0 |
| 99 | /* Queue Algorithm Modifier default for restricted reordering in control mode page */ |
| 100 | #define DA_EMULATE_REST_REORD 0 |
| 101 | |
Nicholas Bellinger | f82f320 | 2013-12-19 14:13:28 -0800 | [diff] [blame] | 102 | #define SE_INQUIRY_BUF 1024 |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 103 | #define SE_MODE_PAGE_BUF 512 |
Paolo Bonzini | 32a8811 | 2012-09-07 17:30:36 +0200 | [diff] [blame] | 104 | #define SE_SENSE_BUF 96 |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 105 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 106 | /* struct se_hba->hba_flags */ |
| 107 | enum hba_flags_table { |
| 108 | HBA_FLAGS_INTERNAL_USE = 0x01, |
| 109 | HBA_FLAGS_PSCSI_MODE = 0x02, |
| 110 | }; |
| 111 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 112 | /* Special transport agnostic struct se_cmd->t_states */ |
| 113 | enum transport_state_table { |
| 114 | TRANSPORT_NO_STATE = 0, |
| 115 | TRANSPORT_NEW_CMD = 1, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 116 | TRANSPORT_WRITE_PENDING = 3, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 117 | TRANSPORT_PROCESSING = 5, |
Christoph Hellwig | 35e0e75 | 2011-10-17 13:56:53 -0400 | [diff] [blame] | 118 | TRANSPORT_COMPLETE = 6, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 119 | TRANSPORT_ISTATE_PROCESSING = 11, |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 120 | TRANSPORT_COMPLETE_QF_WP = 18, |
Christoph Hellwig | e057f53 | 2011-10-17 13:56:41 -0400 | [diff] [blame] | 121 | TRANSPORT_COMPLETE_QF_OK = 19, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 122 | }; |
| 123 | |
| 124 | /* Used for struct se_cmd->se_cmd_flags */ |
| 125 | enum se_cmd_flags_table { |
| 126 | SCF_SUPPORTED_SAM_OPCODE = 0x00000001, |
| 127 | SCF_TRANSPORT_TASK_SENSE = 0x00000002, |
| 128 | SCF_EMULATED_TASK_SENSE = 0x00000004, |
Christoph Hellwig | 64f1db3 | 2012-05-20 11:59:11 -0400 | [diff] [blame] | 129 | SCF_SCSI_DATA_CDB = 0x00000008, |
| 130 | SCF_SCSI_TMR_CDB = 0x00000010, |
Christoph Hellwig | 64f1db3 | 2012-05-20 11:59:11 -0400 | [diff] [blame] | 131 | SCF_FUA = 0x00000080, |
| 132 | SCF_SE_LUN_CMD = 0x00000100, |
Christoph Hellwig | 64f1db3 | 2012-05-20 11:59:11 -0400 | [diff] [blame] | 133 | SCF_BIDI = 0x00000400, |
| 134 | SCF_SENT_CHECK_CONDITION = 0x00000800, |
| 135 | SCF_OVERFLOW_BIT = 0x00001000, |
| 136 | SCF_UNDERFLOW_BIT = 0x00002000, |
Alex Leung | 68259b5 | 2014-03-21 22:20:41 -0700 | [diff] [blame] | 137 | SCF_SEND_DELAYED_TAS = 0x00004000, |
Christoph Hellwig | 64f1db3 | 2012-05-20 11:59:11 -0400 | [diff] [blame] | 138 | SCF_ALUA_NON_OPTIMIZED = 0x00008000, |
Christoph Hellwig | 64f1db3 | 2012-05-20 11:59:11 -0400 | [diff] [blame] | 139 | SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00020000, |
Nicholas Bellinger | a82a953 | 2013-08-19 23:57:30 -0700 | [diff] [blame] | 140 | SCF_COMPARE_AND_WRITE = 0x00080000, |
| 141 | SCF_COMPARE_AND_WRITE_POST = 0x00100000, |
Akinobu Mita | 5835812 | 2015-05-01 15:23:49 +0900 | [diff] [blame] | 142 | SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC = 0x00200000, |
Nicholas Bellinger | febe562 | 2016-01-11 21:31:09 -0800 | [diff] [blame] | 143 | SCF_ACK_KREF = 0x00400000, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 144 | }; |
| 145 | |
| 146 | /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */ |
| 147 | enum transport_lunflags_table { |
Nicholas Bellinger | 29a05de | 2015-03-22 20:42:19 -0700 | [diff] [blame] | 148 | TRANSPORT_LUNFLAGS_READ_ONLY = 0x01, |
| 149 | TRANSPORT_LUNFLAGS_READ_WRITE = 0x02, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 150 | }; |
| 151 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 152 | /* |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 153 | * Used by transport_send_check_condition_and_sense() |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 154 | * to signal which ASC/ASCQ sense payload should be built. |
| 155 | */ |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 156 | typedef unsigned __bitwise__ sense_reason_t; |
| 157 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 158 | enum tcm_sense_reason_table { |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 159 | #define R(x) (__force sense_reason_t )(x) |
Hannes Reinecke | ba82913 | 2012-12-17 09:53:33 +0100 | [diff] [blame] | 160 | TCM_NO_SENSE = R(0x00), |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 161 | TCM_NON_EXISTENT_LUN = R(0x01), |
| 162 | TCM_UNSUPPORTED_SCSI_OPCODE = R(0x02), |
| 163 | TCM_INCORRECT_AMOUNT_OF_DATA = R(0x03), |
| 164 | TCM_UNEXPECTED_UNSOLICITED_DATA = R(0x04), |
| 165 | TCM_SERVICE_CRC_ERROR = R(0x05), |
| 166 | TCM_SNACK_REJECTED = R(0x06), |
| 167 | TCM_SECTOR_COUNT_TOO_MANY = R(0x07), |
| 168 | TCM_INVALID_CDB_FIELD = R(0x08), |
| 169 | TCM_INVALID_PARAMETER_LIST = R(0x09), |
| 170 | TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = R(0x0a), |
| 171 | TCM_UNKNOWN_MODE_PAGE = R(0x0b), |
| 172 | TCM_WRITE_PROTECTED = R(0x0c), |
| 173 | TCM_CHECK_CONDITION_ABORT_CMD = R(0x0d), |
| 174 | TCM_CHECK_CONDITION_UNIT_ATTENTION = R(0x0e), |
| 175 | TCM_CHECK_CONDITION_NOT_READY = R(0x0f), |
| 176 | TCM_RESERVATION_CONFLICT = R(0x10), |
| 177 | TCM_ADDRESS_OUT_OF_RANGE = R(0x11), |
| 178 | TCM_OUT_OF_RESOURCES = R(0x12), |
Roland Dreier | bb992e7 | 2013-02-08 15:18:39 -0800 | [diff] [blame] | 179 | TCM_PARAMETER_LIST_LENGTH_ERROR = R(0x13), |
Nicholas Bellinger | 818b571 | 2013-08-19 15:10:38 -0700 | [diff] [blame] | 180 | TCM_MISCOMPARE_VERIFY = R(0x14), |
Nicholas Bellinger | fcc4f17 | 2014-01-07 23:39:33 +0000 | [diff] [blame] | 181 | TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED = R(0x15), |
| 182 | TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED = R(0x16), |
| 183 | TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED = R(0x17), |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 184 | #undef R |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 185 | }; |
| 186 | |
Nicholas Bellinger | a636078 | 2011-11-18 20:36:22 -0800 | [diff] [blame] | 187 | enum target_sc_flags_table { |
| 188 | TARGET_SCF_BIDI_OP = 0x01, |
| 189 | TARGET_SCF_ACK_KREF = 0x02, |
Sebastian Andrzej Siewior | b0d7994 | 2012-01-10 14:16:59 +0100 | [diff] [blame] | 190 | TARGET_SCF_UNKNOWN_SIZE = 0x04, |
Nicholas Bellinger | a636078 | 2011-11-18 20:36:22 -0800 | [diff] [blame] | 191 | }; |
| 192 | |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 193 | /* fabric independent task management function values */ |
| 194 | enum tcm_tmreq_table { |
| 195 | TMR_ABORT_TASK = 1, |
| 196 | TMR_ABORT_TASK_SET = 2, |
| 197 | TMR_CLEAR_ACA = 3, |
| 198 | TMR_CLEAR_TASK_SET = 4, |
| 199 | TMR_LUN_RESET = 5, |
| 200 | TMR_TARGET_WARM_RESET = 6, |
| 201 | TMR_TARGET_COLD_RESET = 7, |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 202 | }; |
| 203 | |
| 204 | /* fabric independent task management response values */ |
| 205 | enum tcm_tmrsp_table { |
Hannes Reinecke | a314d70 | 2013-10-16 09:12:54 +0200 | [diff] [blame] | 206 | TMR_FUNCTION_FAILED = 0, |
Joern Engel | 11fee8a | 2013-07-03 11:22:16 -0400 | [diff] [blame] | 207 | TMR_FUNCTION_COMPLETE = 1, |
| 208 | TMR_TASK_DOES_NOT_EXIST = 2, |
| 209 | TMR_LUN_DOES_NOT_EXIST = 3, |
| 210 | TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 4, |
| 211 | TMR_FUNCTION_REJECTED = 5, |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 212 | }; |
| 213 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 214 | /* |
Nicholas Bellinger | e89d15e | 2011-02-09 15:35:03 -0800 | [diff] [blame] | 215 | * Used for target SCSI statistics |
| 216 | */ |
| 217 | typedef enum { |
| 218 | SCSI_INST_INDEX, |
| 219 | SCSI_DEVICE_INDEX, |
| 220 | SCSI_AUTH_INTR_INDEX, |
| 221 | SCSI_INDEX_TYPE_MAX |
| 222 | } scsi_index_t; |
| 223 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 224 | struct se_cmd; |
| 225 | |
Hannes Reinecke | c66094b | 2013-12-17 09:18:49 +0100 | [diff] [blame] | 226 | struct t10_alua_lba_map_member { |
| 227 | struct list_head lba_map_mem_list; |
| 228 | int lba_map_mem_alua_state; |
| 229 | int lba_map_mem_alua_pg_id; |
| 230 | }; |
| 231 | |
| 232 | struct t10_alua_lba_map { |
| 233 | u64 lba_map_first_lba; |
| 234 | u64 lba_map_last_lba; |
| 235 | struct list_head lba_map_list; |
| 236 | struct list_head lba_map_mem_list; |
| 237 | }; |
| 238 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 239 | struct t10_alua { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 240 | /* ALUA Target Port Group ID */ |
| 241 | u16 alua_tg_pt_gps_counter; |
| 242 | u32 alua_tg_pt_gps_count; |
Hannes Reinecke | c66094b | 2013-12-17 09:18:49 +0100 | [diff] [blame] | 243 | /* Referrals support */ |
| 244 | spinlock_t lba_map_lock; |
| 245 | u32 lba_map_segment_size; |
| 246 | u32 lba_map_segment_multiplier; |
| 247 | struct list_head lba_map_list; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 248 | spinlock_t tg_pt_gps_lock; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 249 | struct se_device *t10_dev; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 250 | /* Used for default ALUA Target Port Group */ |
| 251 | struct t10_alua_tg_pt_gp *default_tg_pt_gp; |
| 252 | /* Used for default ALUA Target Port Group ConfigFS group */ |
| 253 | struct config_group alua_tg_pt_gps_group; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 254 | struct list_head tg_pt_gps_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 255 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 256 | |
| 257 | struct t10_alua_lu_gp { |
| 258 | u16 lu_gp_id; |
| 259 | int lu_gp_valid_id; |
| 260 | u32 lu_gp_members; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 261 | atomic_t lu_gp_ref_cnt; |
| 262 | spinlock_t lu_gp_lock; |
| 263 | struct config_group lu_gp_group; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 264 | struct list_head lu_gp_node; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 265 | struct list_head lu_gp_mem_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 266 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 267 | |
| 268 | struct t10_alua_lu_gp_member { |
Dan Carpenter | 5dd7ed2 | 2011-03-14 04:06:01 -0700 | [diff] [blame] | 269 | bool lu_gp_assoc; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 270 | atomic_t lu_gp_mem_ref_cnt; |
| 271 | spinlock_t lu_gp_mem_lock; |
| 272 | struct t10_alua_lu_gp *lu_gp; |
| 273 | struct se_device *lu_gp_mem_dev; |
| 274 | struct list_head lu_gp_mem_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 275 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 276 | |
| 277 | struct t10_alua_tg_pt_gp { |
| 278 | u16 tg_pt_gp_id; |
| 279 | int tg_pt_gp_valid_id; |
Hannes Reinecke | c0dc941 | 2013-11-19 09:07:49 +0100 | [diff] [blame] | 280 | int tg_pt_gp_alua_supported_states; |
Hannes Reinecke | dfbce75 | 2013-12-17 09:18:45 +0100 | [diff] [blame] | 281 | int tg_pt_gp_alua_pending_state; |
| 282 | int tg_pt_gp_alua_previous_state; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 283 | int tg_pt_gp_alua_access_status; |
| 284 | int tg_pt_gp_alua_access_type; |
| 285 | int tg_pt_gp_nonop_delay_msecs; |
| 286 | int tg_pt_gp_trans_delay_msecs; |
Hannes Reinecke | 125d011 | 2013-11-19 09:07:46 +0100 | [diff] [blame] | 287 | int tg_pt_gp_implicit_trans_secs; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 288 | int tg_pt_gp_pref; |
| 289 | int tg_pt_gp_write_metadata; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 290 | u32 tg_pt_gp_members; |
| 291 | atomic_t tg_pt_gp_alua_access_state; |
| 292 | atomic_t tg_pt_gp_ref_cnt; |
| 293 | spinlock_t tg_pt_gp_lock; |
| 294 | struct mutex tg_pt_gp_md_mutex; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 295 | struct se_device *tg_pt_gp_dev; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 296 | struct config_group tg_pt_gp_group; |
| 297 | struct list_head tg_pt_gp_list; |
Christoph Hellwig | adf653f | 2015-05-25 21:33:08 -0700 | [diff] [blame] | 298 | struct list_head tg_pt_gp_lun_list; |
| 299 | struct se_lun *tg_pt_gp_alua_lun; |
Hannes Reinecke | 9c6e164 | 2013-12-17 09:18:46 +0100 | [diff] [blame] | 300 | struct se_node_acl *tg_pt_gp_alua_nacl; |
| 301 | struct delayed_work tg_pt_gp_transition_work; |
| 302 | struct completion *tg_pt_gp_transition_complete; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 303 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 304 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 305 | struct t10_vpd { |
| 306 | unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN]; |
| 307 | int protocol_identifier_set; |
| 308 | u32 protocol_identifier; |
| 309 | u32 device_identifier_code_set; |
| 310 | u32 association; |
| 311 | u32 device_identifier_type; |
| 312 | struct list_head vpd_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 313 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 314 | |
| 315 | struct t10_wwn { |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 316 | char vendor[8]; |
| 317 | char model[16]; |
| 318 | char revision[4]; |
| 319 | char unit_serial[INQUIRY_VPD_SERIAL_LEN]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 320 | spinlock_t t10_vpd_lock; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 321 | struct se_device *t10_dev; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 322 | struct config_group t10_wwn_group; |
| 323 | struct list_head t10_vpd_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 324 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 325 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 326 | struct t10_pr_registration { |
| 327 | /* Used for fabrics that contain WWN+ISID */ |
| 328 | #define PR_REG_ISID_LEN 16 |
| 329 | /* PR_REG_ISID_LEN + ',i,0x' */ |
| 330 | #define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5) |
| 331 | char pr_reg_isid[PR_REG_ISID_LEN]; |
| 332 | /* Used during APTPL metadata reading */ |
| 333 | #define PR_APTPL_MAX_IPORT_LEN 256 |
| 334 | unsigned char pr_iport[PR_APTPL_MAX_IPORT_LEN]; |
| 335 | /* Used during APTPL metadata reading */ |
| 336 | #define PR_APTPL_MAX_TPORT_LEN 256 |
| 337 | unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 338 | u16 pr_aptpl_rpti; |
| 339 | u16 pr_reg_tpgt; |
| 340 | /* Reservation effects all target ports */ |
| 341 | int pr_reg_all_tg_pt; |
| 342 | /* Activate Persistence across Target Power Loss */ |
| 343 | int pr_reg_aptpl; |
| 344 | int pr_res_holder; |
| 345 | int pr_res_type; |
| 346 | int pr_res_scope; |
| 347 | /* Used for fabric initiator WWPNs using a ISID */ |
Dan Carpenter | 5dd7ed2 | 2011-03-14 04:06:01 -0700 | [diff] [blame] | 348 | bool isid_present_at_reg; |
Hannes Reinecke | f2d3068 | 2015-06-10 08:41:22 +0200 | [diff] [blame] | 349 | u64 pr_res_mapped_lun; |
| 350 | u64 pr_aptpl_target_lun; |
Nicholas Bellinger | 79dc9c9 | 2015-03-27 04:51:03 +0000 | [diff] [blame] | 351 | u16 tg_pt_sep_rtpi; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 352 | u32 pr_res_generation; |
| 353 | u64 pr_reg_bin_isid; |
| 354 | u64 pr_res_key; |
| 355 | atomic_t pr_res_holders; |
| 356 | struct se_node_acl *pr_reg_nacl; |
Nicholas Bellinger | 79dc9c9 | 2015-03-27 04:51:03 +0000 | [diff] [blame] | 357 | /* Used by ALL_TG_PT=1 registration with deve->pr_ref taken */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 358 | struct se_dev_entry *pr_reg_deve; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 359 | struct list_head pr_reg_list; |
| 360 | struct list_head pr_reg_abort_list; |
| 361 | struct list_head pr_reg_aptpl_list; |
| 362 | struct list_head pr_reg_atp_list; |
| 363 | struct list_head pr_reg_atp_mem_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 364 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 365 | |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 366 | struct t10_reservation { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 367 | /* Reservation effects all target ports */ |
| 368 | int pr_all_tg_pt; |
| 369 | /* Activate Persistence across Target Power Loss enabled |
| 370 | * for SCSI device */ |
| 371 | int pr_aptpl_active; |
Nicholas Bellinger | f161d4b | 2015-02-11 18:34:40 -0800 | [diff] [blame] | 372 | #define PR_APTPL_BUF_LEN 262144 |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 373 | u32 pr_generation; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 374 | spinlock_t registration_lock; |
| 375 | spinlock_t aptpl_reg_lock; |
| 376 | /* |
| 377 | * This will always be set by one individual I_T Nexus. |
| 378 | * However with all_tg_pt=1, other I_T Nexus from the |
| 379 | * same initiator can access PR reg/res info on a different |
| 380 | * target port. |
| 381 | * |
| 382 | * There is also the 'All Registrants' case, where there is |
| 383 | * a single *pr_res_holder of the reservation, but all |
| 384 | * registrations are considered reservation holders. |
| 385 | */ |
| 386 | struct se_node_acl *pr_res_holder; |
| 387 | struct list_head registration_list; |
| 388 | struct list_head aptpl_reg_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 389 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 390 | |
Andy Grover | c8e31f2 | 2012-01-19 13:39:17 -0800 | [diff] [blame] | 391 | struct se_tmr_req { |
| 392 | /* Task Management function to be performed */ |
| 393 | u8 function; |
| 394 | /* Task Management response to send */ |
| 395 | u8 response; |
| 396 | int call_transport; |
| 397 | /* Reference to ITT that Task Mgmt should be performed */ |
Bart Van Assche | 649ee05 | 2015-04-14 13:26:44 +0200 | [diff] [blame] | 398 | u64 ref_task_tag; |
Andy Grover | c8e31f2 | 2012-01-19 13:39:17 -0800 | [diff] [blame] | 399 | void *fabric_tmr_ptr; |
| 400 | struct se_cmd *task_cmd; |
Andy Grover | c8e31f2 | 2012-01-19 13:39:17 -0800 | [diff] [blame] | 401 | struct se_device *tmr_dev; |
| 402 | struct se_lun *tmr_lun; |
| 403 | struct list_head tmr_list; |
| 404 | }; |
| 405 | |
Nicholas Bellinger | ce65e5b | 2013-12-23 20:28:13 +0000 | [diff] [blame] | 406 | enum target_prot_op { |
Nicholas Bellinger | e70beee | 2014-04-02 12:52:38 -0700 | [diff] [blame] | 407 | TARGET_PROT_NORMAL = 0, |
| 408 | TARGET_PROT_DIN_INSERT = (1 << 0), |
| 409 | TARGET_PROT_DOUT_INSERT = (1 << 1), |
| 410 | TARGET_PROT_DIN_STRIP = (1 << 2), |
| 411 | TARGET_PROT_DOUT_STRIP = (1 << 3), |
| 412 | TARGET_PROT_DIN_PASS = (1 << 4), |
| 413 | TARGET_PROT_DOUT_PASS = (1 << 5), |
Nicholas Bellinger | ce65e5b | 2013-12-23 20:28:13 +0000 | [diff] [blame] | 414 | }; |
| 415 | |
Nicholas Bellinger | e70beee | 2014-04-02 12:52:38 -0700 | [diff] [blame] | 416 | #define TARGET_PROT_ALL TARGET_PROT_DIN_INSERT | TARGET_PROT_DOUT_INSERT | \ |
| 417 | TARGET_PROT_DIN_STRIP | TARGET_PROT_DOUT_STRIP | \ |
| 418 | TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS |
| 419 | |
Nicholas Bellinger | ce65e5b | 2013-12-23 20:28:13 +0000 | [diff] [blame] | 420 | enum target_prot_type { |
| 421 | TARGET_DIF_TYPE0_PROT, |
| 422 | TARGET_DIF_TYPE1_PROT, |
| 423 | TARGET_DIF_TYPE2_PROT, |
| 424 | TARGET_DIF_TYPE3_PROT, |
| 425 | }; |
| 426 | |
Sagi Grimberg | 19f9361 | 2014-02-19 17:50:15 +0200 | [diff] [blame] | 427 | enum target_core_dif_check { |
| 428 | TARGET_DIF_CHECK_GUARD = 0x1 << 0, |
| 429 | TARGET_DIF_CHECK_APPTAG = 0x1 << 1, |
| 430 | TARGET_DIF_CHECK_REFTAG = 0x1 << 2, |
| 431 | }; |
| 432 | |
Christoph Hellwig | 68d81f4 | 2014-11-24 07:07:25 -0800 | [diff] [blame] | 433 | /* for sam_task_attr */ |
| 434 | #define TCM_SIMPLE_TAG 0x20 |
| 435 | #define TCM_HEAD_TAG 0x21 |
| 436 | #define TCM_ORDERED_TAG 0x22 |
| 437 | #define TCM_ACA_TAG 0x24 |
| 438 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 439 | struct se_cmd { |
| 440 | /* SAM response code being sent to initiator */ |
| 441 | u8 scsi_status; |
| 442 | u8 scsi_asc; |
| 443 | u8 scsi_ascq; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 444 | u16 scsi_sense_length; |
Roland Dreier | 915270c3 | 2015-07-21 17:45:33 -0700 | [diff] [blame] | 445 | unsigned cmd_wait_set:1; |
| 446 | unsigned unknown_data_length:1; |
| 447 | bool state_active:1; |
Bart Van Assche | 649ee05 | 2015-04-14 13:26:44 +0200 | [diff] [blame] | 448 | u64 tag; /* SAM command identifier aka task tag */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 449 | /* Delay for ALUA Active/NonOptimized state access in milliseconds */ |
| 450 | int alua_nonop_delay; |
| 451 | /* See include/linux/dma-mapping.h */ |
| 452 | enum dma_data_direction data_direction; |
| 453 | /* For SAM Task Attribute */ |
| 454 | int sam_task_attr; |
Nicholas Bellinger | c0add7f | 2013-06-07 17:38:58 -0700 | [diff] [blame] | 455 | /* Used for se_sess->sess_tag_pool */ |
| 456 | unsigned int map_tag; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 457 | /* Transport protocol dependent state, see transport_state_table */ |
| 458 | enum transport_state_table t_state; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 459 | /* See se_cmd_flags_table */ |
| 460 | u32 se_cmd_flags; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 461 | /* Total size in bytes associated with command */ |
| 462 | u32 data_length; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 463 | u32 residual_count; |
Hannes Reinecke | f2d3068 | 2015-06-10 08:41:22 +0200 | [diff] [blame] | 464 | u64 orig_fe_lun; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 465 | /* Persistent Reservation key */ |
| 466 | u64 pr_res_key; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 467 | /* Used for sense data */ |
| 468 | void *sense_buffer; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 469 | struct list_head se_delayed_node; |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 470 | struct list_head se_qf_node; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 471 | struct se_device *se_dev; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 472 | struct se_lun *se_lun; |
| 473 | /* Only used for internal passthrough and legacy TCM fabric modules */ |
| 474 | struct se_session *se_sess; |
| 475 | struct se_tmr_req *se_tmr_req; |
Nicholas Bellinger | a17f091 | 2011-11-02 21:52:08 -0700 | [diff] [blame] | 476 | struct list_head se_cmd_list; |
| 477 | struct completion cmd_wait_comp; |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 478 | const struct target_core_fabric_ops *se_tfo; |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 479 | sense_reason_t (*execute_cmd)(struct se_cmd *); |
Nicholas Bellinger | 057085e | 2015-11-05 23:37:59 -0800 | [diff] [blame] | 480 | sense_reason_t (*transport_complete_callback)(struct se_cmd *, bool, int *); |
Christoph Hellwig | 7a971b1 | 2015-06-19 15:10:58 +0200 | [diff] [blame] | 481 | void *protocol_data; |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 482 | |
Andy Grover | a1d8b49 | 2011-05-02 17:12:10 -0700 | [diff] [blame] | 483 | unsigned char *t_task_cdb; |
| 484 | unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE]; |
| 485 | unsigned long long t_task_lba; |
Nicholas Bellinger | a82a953 | 2013-08-19 23:57:30 -0700 | [diff] [blame] | 486 | unsigned int t_task_nolb; |
Christoph Hellwig | 7d680f3 | 2011-12-21 14:13:47 -0500 | [diff] [blame] | 487 | unsigned int transport_state; |
| 488 | #define CMD_T_ABORTED (1 << 0) |
| 489 | #define CMD_T_ACTIVE (1 << 1) |
| 490 | #define CMD_T_COMPLETE (1 << 2) |
Christoph Hellwig | 7d680f3 | 2011-12-21 14:13:47 -0500 | [diff] [blame] | 491 | #define CMD_T_SENT (1 << 4) |
| 492 | #define CMD_T_STOP (1 << 5) |
Nicholas Bellinger | 4a9a6c8 | 2013-11-06 21:05:19 -0800 | [diff] [blame] | 493 | #define CMD_T_DEV_ACTIVE (1 << 7) |
| 494 | #define CMD_T_REQUEST_STOP (1 << 8) |
| 495 | #define CMD_T_BUSY (1 << 9) |
Nicholas Bellinger | 0f4a943 | 2016-01-19 15:23:02 -0800 | [diff] [blame^] | 496 | #define CMD_T_TAS (1 << 10) |
| 497 | #define CMD_T_FABRIC_STOP (1 << 11) |
Andy Grover | a1d8b49 | 2011-05-02 17:12:10 -0700 | [diff] [blame] | 498 | spinlock_t t_state_lock; |
Roland Dreier | 915270c3 | 2015-07-21 17:45:33 -0700 | [diff] [blame] | 499 | struct kref cmd_kref; |
Andy Grover | a1d8b49 | 2011-05-02 17:12:10 -0700 | [diff] [blame] | 500 | struct completion t_transport_stop_comp; |
Andy Grover | 05d1c7c | 2011-07-20 19:13:28 +0000 | [diff] [blame] | 501 | |
Christoph Hellwig | 35e0e75 | 2011-10-17 13:56:53 -0400 | [diff] [blame] | 502 | struct work_struct work; |
| 503 | |
Andy Grover | ec98f78 | 2011-07-20 19:28:46 +0000 | [diff] [blame] | 504 | struct scatterlist *t_data_sg; |
Nicholas Bellinger | 47e459e | 2013-08-20 10:45:16 -0700 | [diff] [blame] | 505 | struct scatterlist *t_data_sg_orig; |
Andy Grover | ec98f78 | 2011-07-20 19:28:46 +0000 | [diff] [blame] | 506 | unsigned int t_data_nents; |
Nicholas Bellinger | 47e459e | 2013-08-20 10:45:16 -0700 | [diff] [blame] | 507 | unsigned int t_data_nents_orig; |
Andy Grover | 4949314 | 2012-01-16 16:57:08 -0800 | [diff] [blame] | 508 | void *t_data_vmap; |
Andy Grover | ec98f78 | 2011-07-20 19:28:46 +0000 | [diff] [blame] | 509 | struct scatterlist *t_bidi_data_sg; |
| 510 | unsigned int t_bidi_data_nents; |
| 511 | |
Roland Dreier | 915270c3 | 2015-07-21 17:45:33 -0700 | [diff] [blame] | 512 | /* Used for lun->lun_ref counting */ |
| 513 | int lun_ref_active; |
| 514 | |
Christoph Hellwig | cf572a9 | 2012-04-24 00:25:05 -0400 | [diff] [blame] | 515 | struct list_head state_list; |
Christoph Hellwig | cf572a9 | 2012-04-24 00:25:05 -0400 | [diff] [blame] | 516 | |
| 517 | /* old task stop completion, consider merging with some of the above */ |
| 518 | struct completion task_stop_comp; |
| 519 | |
Christoph Hellwig | 5787cac | 2012-04-24 00:25:06 -0400 | [diff] [blame] | 520 | /* backend private data */ |
| 521 | void *priv; |
Nicholas Bellinger | 5277797 | 2013-11-06 21:03:43 -0800 | [diff] [blame] | 522 | |
Nicholas Bellinger | ce65e5b | 2013-12-23 20:28:13 +0000 | [diff] [blame] | 523 | /* DIF related members */ |
| 524 | enum target_prot_op prot_op; |
| 525 | enum target_prot_type prot_type; |
Sagi Grimberg | 19f9361 | 2014-02-19 17:50:15 +0200 | [diff] [blame] | 526 | u8 prot_checks; |
Roland Dreier | 915270c3 | 2015-07-21 17:45:33 -0700 | [diff] [blame] | 527 | bool prot_pto; |
Nicholas Bellinger | ce65e5b | 2013-12-23 20:28:13 +0000 | [diff] [blame] | 528 | u32 prot_length; |
| 529 | u32 reftag_seed; |
| 530 | struct scatterlist *t_prot_sg; |
| 531 | unsigned int t_prot_nents; |
Nicholas Bellinger | ce65e5b | 2013-12-23 20:28:13 +0000 | [diff] [blame] | 532 | sense_reason_t pi_err; |
Sagi Grimberg | 76736db | 2014-01-23 19:29:38 +0200 | [diff] [blame] | 533 | sector_t bad_sector; |
Quinn Tran | fb3269b | 2015-12-17 14:57:06 -0500 | [diff] [blame] | 534 | int cpuid; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 535 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 536 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 537 | struct se_ua { |
| 538 | u8 ua_asc; |
| 539 | u8 ua_ascq; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 540 | struct list_head ua_nacl_list; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 541 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 542 | |
| 543 | struct se_node_acl { |
| 544 | char initiatorname[TRANSPORT_IQN_LEN]; |
| 545 | /* Used to signal demo mode created ACL, disabled by default */ |
Dan Carpenter | 5dd7ed2 | 2011-03-14 04:06:01 -0700 | [diff] [blame] | 546 | bool dynamic_node_acl; |
Nicholas Bellinger | 337c060 | 2012-03-10 14:36:21 -0800 | [diff] [blame] | 547 | bool acl_stop:1; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 548 | u32 queue_depth; |
| 549 | u32 acl_index; |
Nicholas Bellinger | bffb512 | 2015-04-14 11:52:22 -0700 | [diff] [blame] | 550 | enum target_prot_type saved_prot_type; |
Andy Grover | 79e62fc | 2012-12-11 16:30:53 -0800 | [diff] [blame] | 551 | #define MAX_ACL_TAG_SIZE 64 |
| 552 | char acl_tag[MAX_ACL_TAG_SIZE]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 553 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
| 554 | atomic_t acl_pr_ref_count; |
Nicholas Bellinger | 29a05de | 2015-03-22 20:42:19 -0700 | [diff] [blame] | 555 | struct hlist_head lun_entry_hlist; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 556 | struct se_session *nacl_sess; |
| 557 | struct se_portal_group *se_tpg; |
Nicholas Bellinger | 29a05de | 2015-03-22 20:42:19 -0700 | [diff] [blame] | 558 | struct mutex lun_entry_mutex; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 559 | spinlock_t nacl_sess_lock; |
| 560 | struct config_group acl_group; |
| 561 | struct config_group acl_attrib_group; |
| 562 | struct config_group acl_auth_group; |
| 563 | struct config_group acl_param_group; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 564 | struct config_group acl_fabric_stat_group; |
| 565 | struct config_group *acl_default_groups[5]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 566 | struct list_head acl_list; |
| 567 | struct list_head acl_sess_list; |
Nicholas Bellinger | 0146834 | 2012-03-10 14:32:52 -0800 | [diff] [blame] | 568 | struct completion acl_free_comp; |
Nicholas Bellinger | afb999f | 2012-03-08 23:45:02 -0800 | [diff] [blame] | 569 | struct kref acl_kref; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 570 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 571 | |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 572 | static inline struct se_node_acl *acl_to_nacl(struct config_item *item) |
| 573 | { |
| 574 | return container_of(to_config_group(item), struct se_node_acl, |
| 575 | acl_group); |
| 576 | } |
| 577 | |
| 578 | static inline struct se_node_acl *attrib_to_nacl(struct config_item *item) |
| 579 | { |
| 580 | return container_of(to_config_group(item), struct se_node_acl, |
| 581 | acl_attrib_group); |
| 582 | } |
| 583 | |
| 584 | static inline struct se_node_acl *auth_to_nacl(struct config_item *item) |
| 585 | { |
| 586 | return container_of(to_config_group(item), struct se_node_acl, |
| 587 | acl_auth_group); |
| 588 | } |
| 589 | |
| 590 | static inline struct se_node_acl *param_to_nacl(struct config_item *item) |
| 591 | { |
| 592 | return container_of(to_config_group(item), struct se_node_acl, |
| 593 | acl_param_group); |
| 594 | } |
| 595 | |
| 596 | static inline struct se_node_acl *fabric_stat_to_nacl(struct config_item *item) |
| 597 | { |
| 598 | return container_of(to_config_group(item), struct se_node_acl, |
| 599 | acl_fabric_stat_group); |
| 600 | } |
| 601 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 602 | struct se_session { |
Bart Van Assche | 5f655e8 | 2011-11-08 20:46:29 +0100 | [diff] [blame] | 603 | unsigned sess_tearing_down:1; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 604 | u64 sess_bin_isid; |
Nicholas Bellinger | e70beee | 2014-04-02 12:52:38 -0700 | [diff] [blame] | 605 | enum target_prot_op sup_prot_ops; |
Nicholas Bellinger | 38b57f8 | 2015-02-27 22:05:21 -0800 | [diff] [blame] | 606 | enum target_prot_type sess_prot_type; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 607 | struct se_node_acl *se_node_acl; |
| 608 | struct se_portal_group *se_tpg; |
| 609 | void *fabric_sess_ptr; |
| 610 | struct list_head sess_list; |
| 611 | struct list_head sess_acl_list; |
Nicholas Bellinger | a17f091 | 2011-11-02 21:52:08 -0700 | [diff] [blame] | 612 | struct list_head sess_cmd_list; |
Nicholas Bellinger | 9b31a32 | 2013-05-15 00:52:44 -0700 | [diff] [blame] | 613 | struct list_head sess_wait_list; |
Nicholas Bellinger | a17f091 | 2011-11-02 21:52:08 -0700 | [diff] [blame] | 614 | spinlock_t sess_cmd_lock; |
Nicholas Bellinger | 41ac82b | 2012-02-26 22:22:10 -0800 | [diff] [blame] | 615 | struct kref sess_kref; |
Nicholas Bellinger | c0add7f | 2013-06-07 17:38:58 -0700 | [diff] [blame] | 616 | void *sess_cmd_map; |
| 617 | struct percpu_ida sess_tag_pool; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 618 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 619 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 620 | struct se_device; |
| 621 | struct se_transform_info; |
| 622 | struct scatterlist; |
| 623 | |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 624 | struct se_ml_stat_grps { |
| 625 | struct config_group stat_group; |
| 626 | struct config_group scsi_auth_intr_group; |
| 627 | struct config_group scsi_att_intr_port_group; |
| 628 | }; |
| 629 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 630 | struct se_lun_acl { |
Hannes Reinecke | f2d3068 | 2015-06-10 08:41:22 +0200 | [diff] [blame] | 631 | u64 mapped_lun; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 632 | struct se_node_acl *se_lun_nacl; |
| 633 | struct se_lun *se_lun; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 634 | struct config_group se_lun_group; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 635 | struct se_ml_stat_grps ml_stat_grps; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 636 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 637 | |
| 638 | struct se_dev_entry { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 639 | /* See transport_lunflags_table */ |
Hannes Reinecke | f2d3068 | 2015-06-10 08:41:22 +0200 | [diff] [blame] | 640 | u64 mapped_lun; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 641 | u64 pr_res_key; |
| 642 | u64 creation_time; |
Hannes Reinecke | f2d3068 | 2015-06-10 08:41:22 +0200 | [diff] [blame] | 643 | u32 lun_flags; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 644 | u32 attach_count; |
Nicholas Bellinger | 29a05de | 2015-03-22 20:42:19 -0700 | [diff] [blame] | 645 | atomic_long_t total_cmds; |
| 646 | atomic_long_t read_bytes; |
| 647 | atomic_long_t write_bytes; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 648 | atomic_t ua_count; |
| 649 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
Nicholas Bellinger | 29a05de | 2015-03-22 20:42:19 -0700 | [diff] [blame] | 650 | struct kref pr_kref; |
| 651 | struct completion pr_comp; |
| 652 | struct se_lun_acl __rcu *se_lun_acl; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 653 | spinlock_t ua_lock; |
Nicholas Bellinger | 29a05de | 2015-03-22 20:42:19 -0700 | [diff] [blame] | 654 | struct se_lun __rcu *se_lun; |
Nicholas Bellinger | 80bfdfa | 2015-03-25 01:02:57 -0700 | [diff] [blame] | 655 | #define DEF_PR_REG_ACTIVE 1 |
| 656 | unsigned long deve_flags; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 657 | struct list_head alua_port_list; |
Christoph Hellwig | adf653f | 2015-05-25 21:33:08 -0700 | [diff] [blame] | 658 | struct list_head lun_link; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 659 | struct list_head ua_list; |
Nicholas Bellinger | 29a05de | 2015-03-22 20:42:19 -0700 | [diff] [blame] | 660 | struct hlist_node link; |
| 661 | struct rcu_head rcu_head; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 662 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 663 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 664 | struct se_dev_attrib { |
Tregaron Bayly | adfa957 | 2013-01-31 15:30:24 -0700 | [diff] [blame] | 665 | int emulate_model_alias; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 666 | int emulate_dpo; |
| 667 | int emulate_fua_write; |
| 668 | int emulate_fua_read; |
| 669 | int emulate_write_cache; |
| 670 | int emulate_ua_intlck_ctrl; |
| 671 | int emulate_tas; |
| 672 | int emulate_tpu; |
| 673 | int emulate_tpws; |
Nicholas Bellinger | 0123a9e | 2013-08-20 14:24:09 -0700 | [diff] [blame] | 674 | int emulate_caw; |
Nicholas Bellinger | d397a44 | 2013-08-22 14:17:20 -0700 | [diff] [blame] | 675 | int emulate_3pc; |
Nicholas Bellinger | ce65e5b | 2013-12-23 20:28:13 +0000 | [diff] [blame] | 676 | int pi_prot_format; |
| 677 | enum target_prot_type pi_prot_type; |
| 678 | enum target_prot_type hw_pi_prot_type; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 679 | int enforce_pr_isids; |
Nicholas Bellinger | 92404e6 | 2014-10-04 01:06:08 +0000 | [diff] [blame] | 680 | int force_pr_aptpl; |
Roland Dreier | e22a7f0 | 2011-07-05 13:34:52 -0700 | [diff] [blame] | 681 | int is_nonrot; |
Nicholas Bellinger | 5de619a | 2011-07-17 02:57:58 -0700 | [diff] [blame] | 682 | int emulate_rest_reord; |
Jamie Pocas | e6f4163 | 2015-11-29 14:44:57 -0800 | [diff] [blame] | 683 | int unmap_zeroes_data; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 684 | u32 hw_block_size; |
| 685 | u32 block_size; |
| 686 | u32 hw_max_sectors; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 687 | u32 optimal_sectors; |
| 688 | u32 hw_queue_depth; |
| 689 | u32 queue_depth; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 690 | u32 max_unmap_lba_count; |
| 691 | u32 max_unmap_block_desc_count; |
| 692 | u32 unmap_granularity; |
| 693 | u32 unmap_granularity_alignment; |
Nicholas Bellinger | 773cbaf | 2012-11-15 11:02:49 -0800 | [diff] [blame] | 694 | u32 max_write_same_len; |
Nicholas Bellinger | 95cadac | 2013-12-12 12:24:11 -0800 | [diff] [blame] | 695 | u32 max_bytes_per_io; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 696 | struct se_device *da_dev; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 697 | struct config_group da_group; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 698 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 699 | |
Nicholas Bellinger | 4863e52 | 2013-11-08 13:10:44 -0800 | [diff] [blame] | 700 | struct se_port_stat_grps { |
| 701 | struct config_group stat_group; |
| 702 | struct config_group scsi_port_group; |
| 703 | struct config_group scsi_tgt_port_group; |
| 704 | struct config_group scsi_transport_group; |
| 705 | }; |
| 706 | |
Christoph Hellwig | adf653f | 2015-05-25 21:33:08 -0700 | [diff] [blame] | 707 | struct scsi_port_stats { |
Nicholas Bellinger | 4cc987e | 2015-05-19 00:03:07 -0700 | [diff] [blame] | 708 | atomic_long_t cmd_pdus; |
| 709 | atomic_long_t tx_data_octets; |
| 710 | atomic_long_t rx_data_octets; |
Christoph Hellwig | adf653f | 2015-05-25 21:33:08 -0700 | [diff] [blame] | 711 | }; |
| 712 | |
Nicholas Bellinger | 4863e52 | 2013-11-08 13:10:44 -0800 | [diff] [blame] | 713 | struct se_lun { |
Hannes Reinecke | f2d3068 | 2015-06-10 08:41:22 +0200 | [diff] [blame] | 714 | u64 unpacked_lun; |
Nicholas Bellinger | 4863e52 | 2013-11-08 13:10:44 -0800 | [diff] [blame] | 715 | #define SE_LUN_LINK_MAGIC 0xffff7771 |
| 716 | u32 lun_link_magic; |
Nicholas Bellinger | 4863e52 | 2013-11-08 13:10:44 -0800 | [diff] [blame] | 717 | u32 lun_access; |
Nicholas Bellinger | 29a05de | 2015-03-22 20:42:19 -0700 | [diff] [blame] | 718 | u32 lun_index; |
Hannes Reinecke | f2d3068 | 2015-06-10 08:41:22 +0200 | [diff] [blame] | 719 | |
| 720 | /* RELATIVE TARGET PORT IDENTIFER */ |
| 721 | u16 lun_rtpi; |
Nicholas Bellinger | 4863e52 | 2013-11-08 13:10:44 -0800 | [diff] [blame] | 722 | atomic_t lun_acl_count; |
Christoph Hellwig | adf653f | 2015-05-25 21:33:08 -0700 | [diff] [blame] | 723 | struct se_device __rcu *lun_se_dev; |
| 724 | |
| 725 | struct list_head lun_deve_list; |
| 726 | spinlock_t lun_deve_lock; |
| 727 | |
| 728 | /* ALUA state */ |
| 729 | int lun_tg_pt_secondary_stat; |
| 730 | int lun_tg_pt_secondary_write_md; |
| 731 | atomic_t lun_tg_pt_secondary_offline; |
| 732 | struct mutex lun_tg_pt_md_mutex; |
| 733 | |
| 734 | /* ALUA target port group linkage */ |
| 735 | struct list_head lun_tg_pt_gp_link; |
| 736 | struct t10_alua_tg_pt_gp *lun_tg_pt_gp; |
| 737 | spinlock_t lun_tg_pt_gp_lock; |
| 738 | |
Christoph Hellwig | adf653f | 2015-05-25 21:33:08 -0700 | [diff] [blame] | 739 | struct se_portal_group *lun_tpg; |
| 740 | struct scsi_port_stats lun_stats; |
Nicholas Bellinger | 4863e52 | 2013-11-08 13:10:44 -0800 | [diff] [blame] | 741 | struct config_group lun_group; |
| 742 | struct se_port_stat_grps port_stat_grps; |
| 743 | struct completion lun_ref_comp; |
| 744 | struct percpu_ref lun_ref; |
Christoph Hellwig | adf653f | 2015-05-25 21:33:08 -0700 | [diff] [blame] | 745 | struct list_head lun_dev_link; |
Nicholas Bellinger | 6bb8261 | 2015-05-10 19:31:10 -0700 | [diff] [blame] | 746 | struct hlist_node link; |
| 747 | struct rcu_head rcu_head; |
Nicholas Bellinger | 4863e52 | 2013-11-08 13:10:44 -0800 | [diff] [blame] | 748 | }; |
| 749 | |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 750 | struct se_dev_stat_grps { |
| 751 | struct config_group stat_group; |
| 752 | struct config_group scsi_dev_group; |
| 753 | struct config_group scsi_tgt_dev_group; |
| 754 | struct config_group scsi_lu_group; |
| 755 | }; |
| 756 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 757 | struct se_device { |
Nicholas Bellinger | 0ff8754 | 2012-12-04 23:43:57 -0800 | [diff] [blame] | 758 | #define SE_DEV_LINK_MAGIC 0xfeeddeef |
| 759 | u32 dev_link_magic; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 760 | /* RELATIVE TARGET PORT IDENTIFER Counter */ |
| 761 | u16 dev_rpti_counter; |
| 762 | /* Used for SAM Task Attribute ordering */ |
| 763 | u32 dev_cur_ordered_id; |
| 764 | u32 dev_flags; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 765 | #define DF_CONFIGURED 0x00000001 |
| 766 | #define DF_FIRMWARE_VPD_UNIT_SERIAL 0x00000002 |
| 767 | #define DF_EMULATED_VPD_UNIT_SERIAL 0x00000004 |
| 768 | #define DF_USING_UDEV_PATH 0x00000008 |
| 769 | #define DF_USING_ALIAS 0x00000010 |
Nicholas Bellinger | eeeb952 | 2015-09-15 17:27:35 -0700 | [diff] [blame] | 770 | #define DF_READ_ONLY 0x00000020 |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 771 | /* Physical device queue depth */ |
| 772 | u32 queue_depth; |
| 773 | /* Used for SPC-2 reservations enforce of ISIDs */ |
| 774 | u64 dev_res_bin_isid; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 775 | /* Pointer to transport specific device structure */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 776 | u32 dev_index; |
| 777 | u64 creation_time; |
Nicholas Bellinger | ee48068 | 2013-11-13 18:34:55 -0800 | [diff] [blame] | 778 | atomic_long_t num_resets; |
| 779 | atomic_long_t num_cmds; |
| 780 | atomic_long_t read_bytes; |
| 781 | atomic_long_t write_bytes; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 782 | /* Active commands on this virtual SE device */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 783 | atomic_t simple_cmds; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 784 | atomic_t dev_ordered_sync; |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 785 | atomic_t dev_qf_count; |
Christoph Hellwig | adf653f | 2015-05-25 21:33:08 -0700 | [diff] [blame] | 786 | u32 export_count; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 787 | spinlock_t delayed_cmd_lock; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 788 | spinlock_t execute_task_lock; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 789 | spinlock_t dev_reservation_lock; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 790 | unsigned int dev_reservation_flags; |
| 791 | #define DRF_SPC2_RESERVATIONS 0x00000001 |
| 792 | #define DRF_SPC2_RESERVATIONS_WITH_ISID 0x00000002 |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 793 | spinlock_t se_port_lock; |
| 794 | spinlock_t se_tmr_lock; |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 795 | spinlock_t qf_cmd_lock; |
Nicholas Bellinger | 68ff9b9 | 2013-08-19 15:20:28 -0700 | [diff] [blame] | 796 | struct semaphore caw_sem; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 797 | /* Used for legacy SPC-2 reservationsa */ |
| 798 | struct se_node_acl *dev_reserved_node_acl; |
| 799 | /* Used for ALUA Logical Unit Group membership */ |
| 800 | struct t10_alua_lu_gp_member *dev_alua_lu_gp_mem; |
| 801 | /* Used for SPC-3 Persistent Reservations */ |
| 802 | struct t10_pr_registration *dev_pr_res_holder; |
| 803 | struct list_head dev_sep_list; |
| 804 | struct list_head dev_tmr_list; |
Christoph Hellwig | af87729 | 2012-07-08 15:58:49 -0400 | [diff] [blame] | 805 | struct workqueue_struct *tmr_wq; |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 806 | struct work_struct qf_work_queue; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 807 | struct list_head delayed_cmd_list; |
Christoph Hellwig | cf572a9 | 2012-04-24 00:25:05 -0400 | [diff] [blame] | 808 | struct list_head state_list; |
Nicholas Bellinger | 07bde79 | 2011-06-13 14:46:09 -0700 | [diff] [blame] | 809 | struct list_head qf_cmd_list; |
Nicholas Bellinger | d9ea32b | 2013-08-22 11:33:37 -0700 | [diff] [blame] | 810 | struct list_head g_dev_node; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 811 | /* Pointer to associated SE HBA */ |
| 812 | struct se_hba *se_hba; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 813 | /* T10 Inquiry and VPD WWN Information */ |
| 814 | struct t10_wwn t10_wwn; |
| 815 | /* T10 Asymmetric Logical Unit Assignment for Target Ports */ |
| 816 | struct t10_alua t10_alua; |
| 817 | /* T10 SPC-2 + SPC-3 Reservations */ |
| 818 | struct t10_reservation t10_pr; |
| 819 | struct se_dev_attrib dev_attrib; |
| 820 | struct config_group dev_group; |
| 821 | struct config_group dev_pr_group; |
| 822 | struct se_dev_stat_grps dev_stat_grps; |
| 823 | #define SE_DEV_ALIAS_LEN 512 /* must be less than PAGE_SIZE */ |
| 824 | unsigned char dev_alias[SE_DEV_ALIAS_LEN]; |
| 825 | #define SE_UDEV_PATH_LEN 512 /* must be less than PAGE_SIZE */ |
| 826 | unsigned char udev_path[SE_UDEV_PATH_LEN]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 827 | /* Pointer to template of function pointers for transport */ |
Christoph Hellwig | 0a06d43 | 2015-05-10 18:14:56 +0200 | [diff] [blame] | 828 | const struct target_backend_ops *transport; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 829 | /* Linked list for struct se_hba struct se_device list */ |
| 830 | struct list_head dev_list; |
Nicholas Bellinger | 4863e52 | 2013-11-08 13:10:44 -0800 | [diff] [blame] | 831 | struct se_lun xcopy_lun; |
Nicholas Bellinger | ce65e5b | 2013-12-23 20:28:13 +0000 | [diff] [blame] | 832 | /* Protection Information */ |
| 833 | int prot_length; |
Nicholas Bellinger | 4cc987e | 2015-05-19 00:03:07 -0700 | [diff] [blame] | 834 | /* For se_lun->lun_se_dev RCU read-side critical access */ |
| 835 | u32 hba_index; |
| 836 | struct rcu_head rcu_head; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 837 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 838 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 839 | struct se_hba { |
| 840 | u16 hba_tpgt; |
| 841 | u32 hba_id; |
| 842 | /* See hba_flags_table */ |
| 843 | u32 hba_flags; |
| 844 | /* Virtual iSCSI devices attached. */ |
| 845 | u32 dev_count; |
| 846 | u32 hba_index; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 847 | /* Pointer to transport specific host structure. */ |
| 848 | void *hba_ptr; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 849 | struct list_head hba_node; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 850 | spinlock_t device_lock; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 851 | struct config_group hba_group; |
| 852 | struct mutex hba_access_mutex; |
Christoph Hellwig | 0a06d43 | 2015-05-10 18:14:56 +0200 | [diff] [blame] | 853 | struct target_backend *backend; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 854 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 855 | |
| 856 | struct se_tpg_np { |
Nicholas Bellinger | 1f6fe7c | 2011-02-09 15:34:54 -0800 | [diff] [blame] | 857 | struct se_portal_group *tpg_np_parent; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 858 | struct config_group tpg_np_group; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 859 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 860 | |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 861 | static inline struct se_tpg_np *to_tpg_np(struct config_item *item) |
| 862 | { |
| 863 | return container_of(to_config_group(item), struct se_tpg_np, |
| 864 | tpg_np_group); |
| 865 | } |
| 866 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 867 | struct se_portal_group { |
Christoph Hellwig | e4aae5a | 2015-05-01 17:47:56 +0200 | [diff] [blame] | 868 | /* |
| 869 | * PROTOCOL IDENTIFIER value per SPC4, 7.5.1. |
| 870 | * |
| 871 | * Negative values can be used by fabric drivers for internal use TPGs. |
| 872 | */ |
| 873 | int proto_id; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 874 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
| 875 | atomic_t tpg_pr_ref_count; |
| 876 | /* Spinlock for adding/removing ACLed Nodes */ |
Nicholas Bellinger | 403edd7 | 2015-03-08 22:33:47 +0000 | [diff] [blame] | 877 | struct mutex acl_node_mutex; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 878 | /* Spinlock for adding/removing sessions */ |
| 879 | spinlock_t session_lock; |
Nicholas Bellinger | 6bb8261 | 2015-05-10 19:31:10 -0700 | [diff] [blame] | 880 | struct mutex tpg_lun_mutex; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 881 | struct list_head se_tpg_node; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 882 | /* linked list for initiator ACL list */ |
| 883 | struct list_head acl_node_list; |
Nicholas Bellinger | 6bb8261 | 2015-05-10 19:31:10 -0700 | [diff] [blame] | 884 | struct hlist_head tpg_lun_hlist; |
Christoph Hellwig | adf653f | 2015-05-25 21:33:08 -0700 | [diff] [blame] | 885 | struct se_lun *tpg_virt_lun0; |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 886 | /* List of TCM sessions associated wth this TPG */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 887 | struct list_head tpg_sess_list; |
| 888 | /* Pointer to $FABRIC_MOD dependent code */ |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 889 | const struct target_core_fabric_ops *se_tpg_tfo; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 890 | struct se_wwn *se_tpg_wwn; |
| 891 | struct config_group tpg_group; |
Nicholas Bellinger | e4b512e | 2013-06-19 18:37:00 -0700 | [diff] [blame] | 892 | struct config_group *tpg_default_groups[7]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 893 | struct config_group tpg_lun_group; |
| 894 | struct config_group tpg_np_group; |
| 895 | struct config_group tpg_acl_group; |
| 896 | struct config_group tpg_attrib_group; |
Nicholas Bellinger | e4b512e | 2013-06-19 18:37:00 -0700 | [diff] [blame] | 897 | struct config_group tpg_auth_group; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 898 | struct config_group tpg_param_group; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 899 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 900 | |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 901 | static inline struct se_portal_group *to_tpg(struct config_item *item) |
| 902 | { |
| 903 | return container_of(to_config_group(item), struct se_portal_group, |
| 904 | tpg_group); |
| 905 | } |
| 906 | |
| 907 | static inline struct se_portal_group *attrib_to_tpg(struct config_item *item) |
| 908 | { |
| 909 | return container_of(to_config_group(item), struct se_portal_group, |
| 910 | tpg_attrib_group); |
| 911 | } |
| 912 | |
| 913 | static inline struct se_portal_group *auth_to_tpg(struct config_item *item) |
| 914 | { |
| 915 | return container_of(to_config_group(item), struct se_portal_group, |
| 916 | tpg_auth_group); |
| 917 | } |
| 918 | |
| 919 | static inline struct se_portal_group *param_to_tpg(struct config_item *item) |
| 920 | { |
| 921 | return container_of(to_config_group(item), struct se_portal_group, |
| 922 | tpg_param_group); |
| 923 | } |
| 924 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 925 | struct se_wwn { |
| 926 | struct target_fabric_configfs *wwn_tf; |
| 927 | struct config_group wwn_group; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame] | 928 | struct config_group *wwn_default_groups[2]; |
| 929 | struct config_group fabric_stat_group; |
Christoph Hellwig | e0a53e7 | 2011-11-29 03:29:38 -0500 | [diff] [blame] | 930 | }; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 931 | |
Joern Engel | 33940d0 | 2014-09-16 16:23:12 -0400 | [diff] [blame] | 932 | static inline void atomic_inc_mb(atomic_t *v) |
| 933 | { |
| 934 | smp_mb__before_atomic(); |
| 935 | atomic_inc(v); |
| 936 | smp_mb__after_atomic(); |
| 937 | } |
| 938 | |
| 939 | static inline void atomic_dec_mb(atomic_t *v) |
| 940 | { |
| 941 | smp_mb__before_atomic(); |
| 942 | atomic_dec(v); |
| 943 | smp_mb__after_atomic(); |
| 944 | } |
| 945 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 946 | #endif /* TARGET_CORE_BASE_H */ |