1 /* $NetBSD: nvmereg.h,v 1.19 2022/10/12 20:50:43 andvar Exp $ */ 2 /* $OpenBSD: nvmereg.h,v 1.10 2016/04/14 11:18:32 dlg Exp $ */ 3 4 /* 5 * Copyright (c) 2014 David Gwynne <dlg (at) openbsd.org> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #ifndef __NVMEREG_H__ 21 #define __NVMEREG_H__ 22 23 #ifndef NVME_CTASSERT 24 #define NVME_CTASSERT(x, s) __CTASSERT(x) 25 #endif 26 27 #define NVME_CAP 0x0000 /* Controller Capabilities */ 28 #define NVME_CAP_MPSMAX(_r) (12 + (((_r) >> 52) & 0xf)) /* shift */ 29 #define NVME_CAP_MPSMIN(_r) (12 + (((_r) >> 48) & 0xf)) /* shift */ 30 #define NVME_CAP_CSS(_r) (((_r) >> 37) & 0x7f) 31 #define NVME_CAP_CSS_NVM __BIT(0) 32 #define NVME_CAP_NSSRS(_r) ISSET((_r), __BIT(36)) 33 #define NVME_CAP_DSTRD(_r) __BIT(2 + (((_r) >> 32) & 0xf)) /* bytes */ 34 #define NVME_CAP_TO(_r) (500 * (((_r) >> 24) & 0xff)) /* ms */ 35 #define NVME_CAP_AMS(_r) (((_r) >> 17) & 0x3) 36 #define NVME_CAP_AMS_WRR __BIT(0) 37 #define NVME_CAP_AMS_VENDOR __BIT(1) 38 #define NVME_CAP_CQR(_r) ISSET((_r), __BIT(16)) 39 #define NVME_CAP_MQES(_r) (((_r) & 0xffff) + 1) 40 #define NVME_CAP_LO 0x0000 41 #define NVME_CAP_HI 0x0004 42 #define NVME_VS 0x0008 /* Version */ 43 #define NVME_VS_MJR(_r) (((_r) >> 16) & 0xffff) 44 #define NVME_VS_MNR(_r) (((_r) >> 8) & 0xff) 45 #define NVME_VS_TER(_r) ((_r) & 0xff) 46 #define NVME_INTMS 0x000c /* Interrupt Mask Set */ 47 #define NVME_INTMC 0x0010 /* Interrupt Mask Clear */ 48 #define NVME_CC 0x0014 /* Controller Configuration */ 49 #define NVME_CC_IOCQES(_v) (((_v) & 0xf) << 20) 50 #define NVME_CC_IOCQES_MASK NVME_CC_IOCQES(0xf) 51 #define NVME_CC_IOCQES_R(_v) (((_v) >> 20) & 0xf) 52 #define NVME_CC_IOSQES(_v) (((_v) & 0xf) << 16) 53 #define NVME_CC_IOSQES_MASK NVME_CC_IOSQES(0xf) 54 #define NVME_CC_IOSQES_R(_v) (((_v) >> 16) & 0xf) 55 #define NVME_CC_SHN(_v) (((_v) & 0x3) << 14) 56 #define NVME_CC_SHN_MASK NVME_CC_SHN(0x3) 57 #define NVME_CC_SHN_R(_v) (((_v) >> 15) & 0x3) 58 #define NVME_CC_SHN_NONE 0 59 #define NVME_CC_SHN_NORMAL 1 60 #define NVME_CC_SHN_ABRUPT 2 61 #define NVME_CC_AMS(_v) (((_v) & 0x7) << 11) 62 #define NVME_CC_AMS_MASK NVME_CC_AMS(0x7) 63 #define NVME_CC_AMS_R(_v) (((_v) >> 11) & 0xf) 64 #define NVME_CC_AMS_RR 0 /* round-robin */ 65 #define NVME_CC_AMS_WRR_U 1 /* weighted round-robin w/ urgent */ 66 #define NVME_CC_AMS_VENDOR 7 /* vendor */ 67 #define NVME_CC_MPS(_v) ((((_v) - 12) & 0xf) << 7) 68 #define NVME_CC_MPS_MASK (0xf << 7) 69 #define NVME_CC_MPS_R(_v) (12 + (((_v) >> 7) & 0xf)) 70 #define NVME_CC_CSS(_v) (((_v) & 0x7) << 4) 71 #define NVME_CC_CSS_MASK NVME_CC_CSS(0x7) 72 #define NVME_CC_CSS_R(_v) (((_v) >> 4) & 0x7) 73 #define NVME_CC_CSS_NVM 0 74 #define NVME_CC_EN __BIT(0) 75 #define NVME_CSTS 0x001c /* Controller Status */ 76 #define NVME_CSTS_SHST_MASK (0x3 << 2) 77 #define NVME_CSTS_SHST_NONE (0x0 << 2) /* normal operation */ 78 #define NVME_CSTS_SHST_WAIT (0x1 << 2) /* shutdown processing occurring */ 79 #define NVME_CSTS_SHST_DONE (0x2 << 2) /* shutdown processing complete */ 80 #define NVME_CSTS_CFS __BIT(1) 81 #define NVME_CSTS_RDY __BIT(0) 82 #define NVME_NSSR 0x0020 /* NVM Subsystem Reset (Optional) */ 83 #define NVME_AQA 0x0024 /* Admin Queue Attributes */ 84 /* Admin Completion Queue Size */ 85 #define NVME_AQA_ACQS(_v) (((_v) - 1) << 16) 86 #define NVME_AQA_ACQS_R(_v) ((_v >> 16) & (__BIT(12) - 1)) 87 /* Admin Submission Queue Size */ 88 #define NVME_AQA_ASQS(_v) (((_v) - 1) << 0) 89 #define NVME_AQA_ASQS_R(_v) (_v & (__BIT(12) - 1)) 90 #define NVME_ASQ 0x0028 /* Admin Submission Queue Base Address */ 91 #define NVME_ACQ 0x0030 /* Admin Completion Queue Base Address */ 92 93 #define NVME_ADMIN_Q 0 94 /* Submission Queue Tail Doorbell */ 95 #define NVME_SQTDBL(_q, _s) (0x1000 + (2 * (_q) + 0) * (_s)) 96 /* Completion Queue Head Doorbell */ 97 #define NVME_CQHDBL(_q, _s) (0x1000 + (2 * (_q) + 1) * (_s)) 98 99 struct nvme_sge { 100 uint8_t id; 101 uint8_t _reserved[15]; 102 } __packed __aligned(8); 103 NVME_CTASSERT(sizeof(struct nvme_sge) == 16, "bad size for nvme_sge"); 104 105 struct nvme_sge_data { 106 uint8_t id; 107 uint8_t _reserved[3]; 108 109 uint32_t length; 110 111 uint64_t address; 112 } __packed __aligned(8); 113 NVME_CTASSERT(sizeof(struct nvme_sge_data) == 16, "bad size for nvme_sge_data"); 114 115 struct nvme_sge_bit_bucket { 116 uint8_t id; 117 uint8_t _reserved[3]; 118 119 uint32_t length; 120 121 uint64_t address; 122 } __packed __aligned(8); 123 NVME_CTASSERT(sizeof(struct nvme_sge_bit_bucket) == 16, "bad size for nvme_sge_bit_bucket"); 124 125 struct nvme_sqe { 126 uint8_t opcode; 127 uint8_t flags; 128 uint16_t cid; 129 130 uint32_t nsid; 131 132 uint8_t _reserved[8]; 133 134 uint64_t mptr; 135 136 union { 137 uint64_t prp[2]; 138 struct nvme_sge sge; 139 } entry; 140 141 uint32_t cdw10; 142 uint32_t cdw11; 143 uint32_t cdw12; 144 uint32_t cdw13; 145 uint32_t cdw14; 146 uint32_t cdw15; 147 } __packed __aligned(8); 148 NVME_CTASSERT(sizeof(struct nvme_sqe) == 64, "bad size for nvme_sqe"); 149 150 struct nvme_sqe_q { 151 uint8_t opcode; 152 uint8_t flags; 153 uint16_t cid; 154 155 uint8_t _reserved1[20]; 156 157 uint64_t prp1; 158 159 uint8_t _reserved2[8]; 160 161 uint16_t qid; 162 uint16_t qsize; 163 164 uint8_t qflags; 165 #define NVM_SQE_SQ_QPRIO_URG (0x0 << 1) 166 #define NVM_SQE_SQ_QPRIO_HI (0x1 << 1) 167 #define NVM_SQE_SQ_QPRIO_MED (0x2 << 1) 168 #define NVM_SQE_SQ_QPRIO_LOW (0x3 << 1) 169 #define NVM_SQE_CQ_IEN __BIT(1) 170 #define NVM_SQE_Q_PC __BIT(0) 171 uint8_t _reserved3; 172 uint16_t cqid; /* XXX interrupt vector for cq */ 173 174 uint8_t _reserved4[16]; 175 } __packed __aligned(8); 176 NVME_CTASSERT(sizeof(struct nvme_sqe_q) == 64, "bad size for nvme_sqe_q"); 177 178 struct nvme_sqe_io { 179 uint8_t opcode; 180 uint8_t flags; 181 uint16_t cid; 182 183 uint32_t nsid; 184 185 uint8_t _reserved[8]; 186 187 uint64_t mptr; 188 189 union { 190 uint64_t prp[2]; 191 struct nvme_sge sge; 192 } entry; 193 194 uint64_t slba; /* Starting LBA */ 195 196 uint16_t nlb; /* Number of Logical Blocks */ 197 uint16_t ioflags; 198 #define NVM_SQE_IO_LR __BIT(15) /* Limited Retry */ 199 #define NVM_SQE_IO_FUA __BIT(14) /* Force Unit Access (bypass cache) */ 200 201 uint8_t dsm; /* Dataset Management */ 202 #define NVM_SQE_IO_INCOMP __BIT(7) /* Incompressible */ 203 #define NVM_SQE_IO_SEQ __BIT(6) /* Sequential request */ 204 #define NVM_SQE_IO_LAT_MASK __BITS(4, 5) /* Access Latency */ 205 #define NVM_SQE_IO_LAT_NONE 0 /* Latency: none */ 206 #define NVM_SQE_IO_LAT_IDLE __BIT(4) /* Latency: idle */ 207 #define NVM_SQE_IO_LAT_NORMAL __BIT(5) /* Latency: normal */ 208 #define NVM_SQE_IO_LAT_LOW __BITS(4, 5) /* Latency: low */ 209 #define NVM_SQE_IO_FREQ_MASK __BITS(0, 3) /* Access Frequency */ 210 #define NVM_SQE_IO_FREQ_TYPICAL 0x1 /* Typical */ 211 #define NVM_SQE_IO_FREQ_INFR_INFW 0x2 /* Infrequent read and writes */ 212 #define NVM_SQE_IO_FREQ_FRR_INFW 0x3 /* Frequent read, inf. writes */ 213 #define NVM_SQE_IO_FREQ_INFR_FRW 0x4 /* Inf. read, freq. writes */ 214 #define NVM_SQE_IO_FREQ_FRR_FRW 0x5 /* Freq. read and writes */ 215 #define NVM_SQE_IO_FREQ_ONCE 0x6 /* One time i/o operation */ 216 /* Extra Access Frequency bits for read operations */ 217 #define NVM_SQE_IO_FREQ_SPEC 0x7 /* Speculative read - prefetch */ 218 #define NVM_SQE_IO_FREQ_OVERWRITE 0x8 /* Will be overwritten soon */ 219 uint8_t _reserved2[3]; 220 221 uint32_t eilbrt; /* Expected Initial Logical Block 222 Reference Tag */ 223 224 uint16_t elbat; /* Expected Logical Block 225 Application Tag */ 226 uint16_t elbatm; /* Expected Logical Block 227 Application Tag Mask */ 228 } __packed __aligned(8); 229 NVME_CTASSERT(sizeof(struct nvme_sqe_io) == 64, "bad size for nvme_sqe_io"); 230 231 struct nvme_cqe { 232 uint32_t cdw0; 233 234 uint32_t _reserved; 235 236 uint16_t sqhd; /* SQ Head Pointer */ 237 uint16_t sqid; /* SQ Identifier */ 238 239 uint16_t cid; /* Command Identifier */ 240 uint16_t flags; 241 #define NVME_CQE_DNR __BIT(15) 242 #define NVME_CQE_M __BIT(14) 243 #define NVME_CQE_SCT_MASK __BITS(9, 11) 244 #define NVME_CQE_SCT(_f) ((_f) & NVME_CQE_SCT_MASK) 245 #define NVME_CQE_SCT_GENERIC (0x00 << 9) 246 #define NVME_CQE_SCT_COMMAND (0x01 << 9) 247 #define NVME_CQE_SCT_MEDIAERR (0x02 << 9) 248 #define NVME_CQE_SCT_VENDOR (0x07 << 9) 249 #define NVME_CQE_SC_MASK __BITS(1, 8) 250 #define NVME_CQE_SC(_f) ((_f) & NVME_CQE_SC_MASK) 251 /* generic command status codes */ 252 #define NVME_CQE_SC_SUCCESS (0x00 << 1) 253 #define NVME_CQE_SC_INVALID_OPCODE (0x01 << 1) 254 #define NVME_CQE_SC_INVALID_FIELD (0x02 << 1) 255 #define NVME_CQE_SC_CID_CONFLICT (0x03 << 1) 256 #define NVME_CQE_SC_DATA_XFER_ERR (0x04 << 1) 257 #define NVME_CQE_SC_ABRT_BY_NO_PWR (0x05 << 1) 258 #define NVME_CQE_SC_INTERNAL_DEV_ERR (0x06 << 1) 259 #define NVME_CQE_SC_CMD_ABRT_REQD (0x07 << 1) 260 #define NVME_CQE_SC_CMD_ABDR_SQ_DEL (0x08 << 1) 261 #define NVME_CQE_SC_CMD_ABDR_FUSE_ERR (0x09 << 1) 262 #define NVME_CQE_SC_CMD_ABDR_FUSE_MISS (0x0a << 1) 263 #define NVME_CQE_SC_INVALID_NS (0x0b << 1) 264 #define NVME_CQE_SC_CMD_SEQ_ERR (0x0c << 1) 265 #define NVME_CQE_SC_INVALID_LAST_SGL (0x0d << 1) 266 #define NVME_CQE_SC_INVALID_NUM_SGL (0x0e << 1) 267 #define NVME_CQE_SC_DATA_SGL_LEN (0x0f << 1) 268 #define NVME_CQE_SC_MDATA_SGL_LEN (0x10 << 1) 269 #define NVME_CQE_SC_SGL_TYPE_INVALID (0x11 << 1) 270 #define NVME_CQE_SC_LBA_RANGE (0x80 << 1) 271 #define NVME_CQE_SC_CAP_EXCEEDED (0x81 << 1) 272 #define NVME_CQE_SC_NS_NOT_RDY (0x82 << 1) 273 #define NVME_CQE_SC_RSV_CONFLICT (0x83 << 1) 274 /* command specific status codes */ 275 #define NVME_CQE_SC_CQE_INVALID (0x00 << 1) 276 #define NVME_CQE_SC_INVALID_QID (0x01 << 1) 277 #define NVME_CQE_SC_MAX_Q_SIZE (0x02 << 1) 278 #define NVME_CQE_SC_ABORT_LIMIT (0x03 << 1) 279 #define NVME_CQE_SC_ASYNC_EV_REQ_LIMIT (0x05 << 1) 280 #define NVME_CQE_SC_INVALID_FW_SLOT (0x06 << 1) 281 #define NVME_CQE_SC_INVALID_FW_IMAGE (0x07 << 1) 282 #define NVME_CQE_SC_INVALID_INT_VEC (0x08 << 1) 283 #define NVME_CQE_SC_INVALID_LOG_PAGE (0x09 << 1) 284 #define NVME_CQE_SC_INVALID_FORMAT (0x0a << 1) 285 #define NVME_CQE_SC_FW_REQ_CNV_RESET (0x0b << 1) 286 #define NVME_CQE_SC_FW_REQ_NVM_RESET (0x10 << 1) 287 #define NVME_CQE_SC_FW_REQ_RESET (0x11 << 1) 288 #define NVME_CQE_SC_FW_MAX_TIME_VIO (0x12 << 1) 289 #define NVME_CQE_SC_FW_PROHIBIT (0x13 << 1) 290 #define NVME_CQE_SC_OVERLAP_RANGE (0x14 << 1) 291 #define NVME_CQE_SC_CONFLICT_ATTRS (0x80 << 1) 292 #define NVME_CQE_SC_INVALID_PROT_INFO (0x81 << 1) 293 #define NVME_CQE_SC_ATT_WR_TO_RO_PAGE (0x82 << 1) 294 /* media error status codes */ 295 #define NVME_CQE_SC_WRITE_FAULTS (0x80 << 1) 296 #define NVME_CQE_SC_UNRECV_READ_ERR (0x81 << 1) 297 #define NVME_CQE_SC_GUARD_CHECK_ERR (0x82 << 1) 298 #define NVME_CQE_SC_APPL_TAG_CHECK_ERR (0x83 << 1) 299 #define NVME_CQE_SC_REF_TAG_CHECK_ERR (0x84 << 1) 300 #define NVME_CQE_SC_CMP_FAIL (0x85 << 1) 301 #define NVME_CQE_SC_ACCESS_DENIED (0x86 << 1) 302 #define NVME_CQE_PHASE __BIT(0) 303 } __packed __aligned(8); 304 NVME_CTASSERT(sizeof(struct nvme_cqe) == 16, "bad size for nvme_cqe"); 305 306 #define NVM_ADMIN_DEL_IOSQ 0x00 /* Delete I/O Submission Queue */ 307 #define NVM_ADMIN_ADD_IOSQ 0x01 /* Create I/O Submission Queue */ 308 #define NVM_ADMIN_GET_LOG_PG 0x02 /* Get Log Page */ 309 #define NVM_ADMIN_DEL_IOCQ 0x04 /* Delete I/O Completion Queue */ 310 #define NVM_ADMIN_ADD_IOCQ 0x05 /* Create I/O Completion Queue */ 311 #define NVM_ADMIN_IDENTIFY 0x06 /* Identify */ 312 #define NVM_ADMIN_ABORT 0x08 /* Abort */ 313 #define NVM_ADMIN_SET_FEATURES 0x09 /* Set Features */ 314 #define NVM_ADMIN_GET_FEATURES 0x0a /* Get Features */ 315 #define NVM_ADMIN_ASYNC_EV_REQ 0x0c /* Asynchronous Event Request */ 316 #define NVM_ADMIN_NS_MANAGEMENT 0x0d /* Namespace Management */ 317 /* 0x0e-0x0f - reserved */ 318 #define NVM_ADMIN_FW_COMMIT 0x10 /* Firmware Commit */ 319 #define NVM_ADMIN_FW_DOWNLOAD 0x11 /* Firmware Image Download */ 320 #define NVM_ADMIN_DEV_SELFTEST 0x14 /* Device Self Test */ 321 #define NVM_ADMIN_NS_ATTACHMENT 0x15 /* Namespace Attachment */ 322 #define NVM_ADMIN_KEEP_ALIVE 0x18 /* Keep Alive */ 323 #define NVM_ADMIN_DIRECTIVE_SND 0x19 /* Directive Send */ 324 #define NVM_ADMIN_DIRECTIVE_RCV 0x1a /* Directive Receive */ 325 #define NVM_ADMIN_VIRT_MGMT 0x1c /* Virtualization Management */ 326 #define NVM_ADMIN_NVME_MI_SEND 0x1d /* NVMe-MI Send */ 327 #define NVM_ADMIN_NVME_MI_RECV 0x1e /* NVMe-MI Receive */ 328 #define NVM_ADMIN_DOORBELL_BC 0x7c /* Doorbell Buffer Config */ 329 #define NVM_ADMIN_FORMAT_NVM 0x80 /* Format NVM */ 330 #define NVM_ADMIN_SECURITY_SND 0x81 /* Security Send */ 331 #define NVM_ADMIN_SECURITY_RCV 0x82 /* Security Receive */ 332 #define NVM_ADMIN_SANITIZE 0x84 /* Sanitize */ 333 334 #define NVM_CMD_FLUSH 0x00 /* Flush */ 335 #define NVM_CMD_WRITE 0x01 /* Write */ 336 #define NVM_CMD_READ 0x02 /* Read */ 337 #define NVM_CMD_WR_UNCOR 0x04 /* Write Uncorrectable */ 338 #define NVM_CMD_COMPARE 0x05 /* Compare */ 339 /* 0x06-0x07 - reserved */ 340 #define NVM_CMD_WRITE_ZEROES 0x08 /* Write Zeroes */ 341 #define NVM_CMD_DSM 0x09 /* Dataset Management */ 342 343 /* Features for GET/SET FEATURES */ 344 /* 0x00 - reserved */ 345 #define NVM_FEAT_ARBITRATION 0x01 346 #define NVM_FEAT_POWER_MANAGEMENT 0x02 347 #define NVM_FEAT_LBA_RANGE_TYPE 0x03 348 #define NVM_FEAT_TEMPERATURE_THRESHOLD 0x04 349 #define NVM_FEAT_ERROR_RECOVERY 0x05 350 #define NVM_FEATURE_VOLATILE_WRITE_CACHE 0x06 /* optional */ 351 #define NVM_FEATURE_NUMBER_OF_QUEUES 0x07 /* mandatory */ 352 #define NVM_FEAT_INTERRUPT_COALESCING 0x08 353 #define NVM_FEAT_INTERRUPT_VECTOR_CONFIGURATION 0x09 354 #define NVM_FEAT_WRITE_ATOMICITY 0x0a 355 #define NVM_FEAT_ASYNC_EVENT_CONFIGURATION 0x0b 356 #define NVM_FEAT_AUTONOMOUS_POWER_STATE_TRANSITION 0x0c 357 #define NVM_FEAT_HOST_MEMORY_BUFFER 0x0d 358 #define NVM_FEAT_TIMESTAMP 0x0e 359 #define NVM_FEAT_KEEP_ALIVE_TIMER 0x0f 360 #define NVM_FEAT_HOST_CONTROLLED_THERMAL_MGMT 0x10 361 #define NVM_FEAT_NON_OP_POWER_STATE_CONFIG 0x11 362 /* 0x12-0x77 - reserved */ 363 /* 0x78-0x7f - NVMe Management Interface */ 364 #define NVM_FEAT_SOFTWARE_PROGRESS_MARKER 0x80 365 #define NVM_FEAT_HOST_IDENTIFIER 0x81 366 #define NVM_FEAT_RESERVATION_NOTIFICATION_MASK 0x82 367 #define NVM_FEAT_RESERVATION_PERSISTANCE 0x83 368 /* 0x84-0xBF - command set specific (reserved) */ 369 /* 0xC0-0xFF - vendor specific */ 370 371 #define NVM_SET_FEATURES_SV __BIT(31) /* Persist */ 372 373 #define NVM_VOLATILE_WRITE_CACHE_WCE __BIT(0) /* Write Cache Enable */ 374 375 /* Power State Descriptor Data */ 376 struct nvm_identify_psd { 377 uint16_t mp; /* Max Power */ 378 uint8_t _reserved1; 379 uint8_t flags; 380 #define NVME_PSD_NOPS __BIT(1) 381 #define NVME_PSD_MPS __BIT(0) 382 383 uint32_t enlat; /* Entry Latency */ 384 385 uint32_t exlat; /* Exit Latency */ 386 387 uint8_t rrt; /* Relative Read Throughput */ 388 #define NVME_PSD_RRT_MASK __BITS(0, 4) 389 uint8_t rrl; /* Relative Read Latency */ 390 #define NVME_PSD_RRL_MASK __BITS(0, 4) 391 uint8_t rwt; /* Relative Write Throughput */ 392 #define NVME_PSD_RWT_MASK __BITS(0, 4) 393 uint8_t rwl; /* Relative Write Latency */ 394 #define NVME_PSD_RWL_MASK __BITS(0, 4) 395 396 uint16_t idlp; /* Idle Power */ 397 uint8_t ips; /* Idle Power Scale */ 398 #define NVME_PSD_IPS_MASK __BITS(0, 1) 399 uint8_t _reserved2; 400 uint16_t actp; /* Active Power */ 401 uint16_t ap; /* Active Power Workload/Scale */ 402 #define NVME_PSD_APW_MASK __BITS(0, 2) 403 #define NVME_PSD_APS_MASK __BITS(6, 7) 404 405 uint8_t _reserved[8]; 406 } __packed __aligned(8); 407 NVME_CTASSERT(sizeof(struct nvm_identify_psd) == 32, "bad size for nvm_identify_psd"); 408 409 struct nvm_identify_controller { 410 /* Controller Capabilities and Features */ 411 412 uint16_t vid; /* PCI Vendor ID */ 413 uint16_t ssvid; /* PCI Subsystem Vendor ID */ 414 415 uint8_t sn[20]; /* Serial Number */ 416 uint8_t mn[40]; /* Model Number */ 417 uint8_t fr[8]; /* Firmware Revision */ 418 419 uint8_t rab; /* Recommended Arbitration Burst */ 420 uint8_t ieee[3]; /* IEEE OUI Identifier */ 421 422 uint8_t cmic; /* Controller Multi-Path I/O and 423 Namespace Sharing Capabilities */ 424 uint8_t mdts; /* Maximum Data Transfer Size */ 425 426 uint16_t cntlid; /* Controller ID */ 427 uint32_t ver; /* Version */ 428 429 uint32_t rtd3r; /* RTD3 Resume Latency */ 430 uint32_t rtd3e; /* RTD3 Enter Latency */ 431 432 uint32_t oaes; /* Optional Asynchronous Events Supported */ 433 uint32_t ctrattr; /* Controller Attributes */ 434 435 uint8_t _reserved1[12]; 436 437 uint8_t fguid[16]; /* FRU Globally Unique Identifier */ 438 439 uint8_t _reserved2[128]; 440 441 /* Admin Command Set Attributes & Optional Controller Capabilities */ 442 443 uint16_t oacs; /* Optional Admin Command Support */ 444 #define NVME_ID_CTRLR_OACS_DOORBELL_BC __BIT(8) 445 #define NVME_ID_CTRLR_OACS_VIRT_MGMT __BIT(7) 446 #define NVME_ID_CTRLR_OACS_NVME_MI __BIT(6) 447 #define NVME_ID_CTRLR_OACS_DIRECTIVES __BIT(5) 448 #define NVME_ID_CTRLR_OACS_DEV_SELFTEST __BIT(4) 449 #define NVME_ID_CTRLR_OACS_NS __BIT(3) 450 #define NVME_ID_CTRLR_OACS_FW __BIT(2) 451 #define NVME_ID_CTRLR_OACS_FORMAT __BIT(1) 452 #define NVME_ID_CTRLR_OACS_SECURITY __BIT(0) 453 uint8_t acl; /* Abort Command Limit */ 454 uint8_t aerl; /* Asynchronous Event Request Limit */ 455 456 uint8_t frmw; /* Firmware Updates */ 457 #define NVME_ID_CTRLR_FRMW_NOREQ_RESET __BIT(4) 458 #define NVME_ID_CTRLR_FRMW_NSLOT __BITS(1, 3) 459 #define NVME_ID_CTRLR_FRMW_SLOT1_RO __BIT(0) 460 uint8_t lpa; /* Log Page Attributes */ 461 #define NVME_ID_CTRLR_LPA_CMD_EFFECT __BIT(1) 462 #define NVME_ID_CTRLR_LPA_NS_SMART __BIT(0) 463 uint8_t elpe; /* Error Log Page Entries */ 464 uint8_t npss; /* Number of Power States Support */ 465 466 uint8_t avscc; /* Admin Vendor Specific Command 467 Configuration */ 468 uint8_t apsta; /* Autonomous Power State Transition 469 Attributes */ 470 #define NVME_ID_CTRLR_APSTA_PRESENT __BIT(0) 471 472 uint16_t wctemp; /* Warning Composite Temperature 473 Threshold */ 474 uint16_t cctemp; /* Critical Composite Temperature 475 Threshold */ 476 477 uint16_t mtfa; /* Maximum Time for Firmware Activation */ 478 479 uint32_t hmpre; /* Host Memory Buffer Preferred Size */ 480 uint32_t hmmin; /* Host Memory Buffer Minimum Size */ 481 482 struct { 483 uint64_t tnvmcap[2]; 484 uint64_t unvmcap[2]; 485 } __packed untncap; /* Name space capabilities: 486 if NVME_ID_CTRLR_OACS_NS, 487 report tnvmcap and unvmcap */ 488 489 uint32_t rpmbs; /* Replay Protected Memory Block Support */ 490 491 uint16_t edstt; /* Extended Device Self-test Time */ 492 uint8_t dsto; /* Device Self-test Options */ 493 494 uint8_t fwug; /* Firmware Update Granularity */ 495 496 uint16_t kas; /* Keep Alive Support */ 497 498 uint16_t hctma; /* Host Controlled Thermal Management 499 Attributes */ 500 uint16_t mntmt; /* Minimum Thermal Management Temperature */ 501 uint16_t mxtmt; /* Maximum Thermal Management Temperature */ 502 503 uint32_t sanicap; /* Sanitize Capabilities */ 504 505 uint8_t _reserved3[180]; 506 507 /* NVM Command Set Attributes */ 508 509 uint8_t sqes; /* Submission Queue Entry Size */ 510 #define NVME_ID_CTRLR_SQES_MAX __BITS(4, 7) 511 #define NVME_ID_CTRLR_SQES_MIN __BITS(0, 3) 512 uint8_t cqes; /* Completion Queue Entry Size */ 513 #define NVME_ID_CTRLR_CQES_MAX __BITS(4, 7) 514 #define NVME_ID_CTRLR_CQES_MIN __BITS(0, 3) 515 516 uint16_t maxcmd; /* Maximum Outstanding Commands */ 517 518 uint32_t nn; /* Number of Namespaces */ 519 520 uint16_t oncs; /* Optional NVM Command Support */ 521 #define NVME_ID_CTRLR_ONCS_TIMESTAMP __BIT(6) 522 #define NVME_ID_CTRLR_ONCS_RESERVATION __BIT(5) 523 #define NVME_ID_CTRLR_ONCS_SET_FEATURES __BIT(4) 524 #define NVME_ID_CTRLR_ONCS_WRITE_ZERO __BIT(3) 525 #define NVME_ID_CTRLR_ONCS_DSM __BIT(2) 526 #define NVME_ID_CTRLR_ONCS_WRITE_UNC __BIT(1) 527 #define NVME_ID_CTRLR_ONCS_COMPARE __BIT(0) 528 uint16_t fuses; /* Fused Operation Support */ 529 530 uint8_t fna; /* Format NVM Attributes */ 531 #define NVME_ID_CTRLR_FNA_CRYPTO_ERASE __BIT(2) 532 #define NVME_ID_CTRLR_FNA_ERASE_ALL __BIT(1) 533 #define NVME_ID_CTRLR_FNA_FORMAT_ALL __BIT(0) 534 uint8_t vwc; /* Volatile Write Cache */ 535 #define NVME_ID_CTRLR_VWC_PRESENT __BIT(0) 536 uint16_t awun; /* Atomic Write Unit Normal */ 537 uint16_t awupf; /* Atomic Write Unit Power Fail */ 538 539 uint8_t nvscc; /* NVM Vendor Specific Command */ 540 uint8_t _reserved4[1]; 541 542 uint16_t acwu; /* Atomic Compare & Write Unit */ 543 uint8_t _reserved5[2]; 544 545 uint32_t sgls; /* SGL Support */ 546 547 uint8_t _reserved6[228]; 548 549 uint8_t subnqn[256]; /* NVM Subsystem NVMe Qualified Name */ 550 551 uint8_t _reserved7[768]; 552 553 uint8_t _reserved8[256]; /* NVMe over Fabrics specification */ 554 555 struct nvm_identify_psd psd[32]; /* Power State Descriptors */ 556 557 uint8_t vs[1024]; /* Vendor Specific */ 558 } __packed __aligned(8); 559 NVME_CTASSERT(sizeof(struct nvm_identify_controller) == 4096, "bad size for nvm_identify_controller"); 560 561 struct nvm_namespace_format { 562 uint16_t ms; /* Metadata Size */ 563 uint8_t lbads; /* LBA Data Size */ 564 uint8_t rp; /* Relative Performance */ 565 } __packed __aligned(4); 566 NVME_CTASSERT(sizeof(struct nvm_namespace_format) == 4, "bad size for nvm_namespace_format"); 567 568 struct nvm_identify_namespace { 569 uint64_t nsze; /* Namespace Size */ 570 571 uint64_t ncap; /* Namespace Capacity */ 572 573 uint64_t nuse; /* Namespace Utilization */ 574 575 uint8_t nsfeat; /* Namespace Features */ 576 #define NVME_ID_NS_NSFEAT_LOGICAL_BLK_ERR __BIT(2) 577 #define NVME_ID_NS_NSFEAT_NS __BIT(1) 578 #define NVME_ID_NS_NSFEAT_THIN_PROV __BIT(0) 579 uint8_t nlbaf; /* Number of LBA Formats */ 580 uint8_t flbas; /* Formatted LBA Size */ 581 #define NVME_ID_NS_FLBAS(_f) ((_f) & 0x0f) 582 #define NVME_ID_NS_FLBAS_MD 0x10 583 uint8_t mc; /* Metadata Capabilities */ 584 uint8_t dpc; /* End-to-end Data Protection 585 Capabilities */ 586 uint8_t dps; /* End-to-end Data Protection Type 587 Settings */ 588 #define NVME_ID_NS_DPS_MD_START __BIT(3) 589 #define NVME_ID_NS_DPS_PIT(_f) ((_f) & 0x7) 590 591 uint8_t nmic; /* Namespace Multi-path I/O and Namespace 592 Sharing Capabilities */ 593 594 uint8_t rescap; /* Reservation Capabilities */ 595 596 uint8_t fpi; /* Format Progress Indicator */ 597 598 uint8_t dlfeat; /* Deallocate Logical Block Features */ 599 600 uint16_t nawun; /* Namespace Atomic Write Unit Normal */ 601 uint16_t nawupf; /* Namespace Atomic Write Unit Power Fail */ 602 uint16_t nacwu; /* Namespace Atomic Compare & Write Unit */ 603 uint16_t nabsn; /* Namespace Atomic Boundary Size Normal */ 604 uint16_t nabo; /* Namespace Atomic Boundary Offset */ 605 uint16_t nabspf; /* Namespace Atomic Boundary Size Power 606 Fail */ 607 uint16_t noiob; /* Namespace Optimal IO Boundary */ 608 609 uint8_t nvmcap[16]; /* NVM Capacity */ 610 611 uint8_t _reserved1[40]; /* bytes 64-103: Reserved */ 612 613 uint8_t nguid[16]; /* Namespace Globally Unique Identifier */ 614 uint8_t eui64[8]; /* IEEE Extended Unique Identifier */ 615 616 struct nvm_namespace_format 617 lbaf[16]; /* LBA Format Support */ 618 619 uint8_t _reserved2[192]; 620 621 uint8_t vs[3712]; 622 } __packed __aligned(8); 623 NVME_CTASSERT(sizeof(struct nvm_identify_namespace) == 4096, "bad size for nvm_identify_namespace"); 624 625 #endif /* __NVMEREG_H__ */ 626
Indexes created Sat Sep 20 22:09:52 GMT 2025