2 * Definitions for the NVM Express interface
3 * Copyright (c) 2011-2014, Intel Corporation.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
18 #include <linux/types.h>
20 /* NQN names in commands fields specified one size */
21 #define NVMF_NQN_FIELD_LEN 256
23 /* However the max length of a qualified name is another size */
24 #define NVMF_NQN_SIZE 223
26 #define NVMF_TRSVCID_SIZE 32
27 #define NVMF_TRADDR_SIZE 256
28 #define NVMF_TSAS_SIZE 256
30 #define NVME_DISC_SUBSYS_NAME "nqn.2014-08.org.nvmexpress.discovery"
32 #define NVME_RDMA_IP_PORT 4420
34 enum nvme_subsys_type
{
35 NVME_NQN_DISC
= 1, /* Discovery type target subsystem */
36 NVME_NQN_NVME
= 2, /* NVME type target subsystem */
39 /* Address Family codes for Discovery Log Page entry ADRFAM field */
41 NVMF_ADDR_FAMILY_PCI
= 0, /* PCIe */
42 NVMF_ADDR_FAMILY_IP4
= 1, /* IP4 */
43 NVMF_ADDR_FAMILY_IP6
= 2, /* IP6 */
44 NVMF_ADDR_FAMILY_IB
= 3, /* InfiniBand */
45 NVMF_ADDR_FAMILY_FC
= 4, /* Fibre Channel */
48 /* Transport Type codes for Discovery Log Page entry TRTYPE field */
50 NVMF_TRTYPE_RDMA
= 1, /* RDMA */
51 NVMF_TRTYPE_FC
= 2, /* Fibre Channel */
52 NVMF_TRTYPE_LOOP
= 254, /* Reserved for host usage */
56 /* Transport Requirements codes for Discovery Log Page entry TREQ field */
58 NVMF_TREQ_NOT_SPECIFIED
= 0, /* Not specified */
59 NVMF_TREQ_REQUIRED
= 1, /* Required */
60 NVMF_TREQ_NOT_REQUIRED
= 2, /* Not Required */
63 /* RDMA QP Service Type codes for Discovery Log Page entry TSAS
67 NVMF_RDMA_QPTYPE_CONNECTED
= 0, /* Reliable Connected */
68 NVMF_RDMA_QPTYPE_DATAGRAM
= 1, /* Reliable Datagram */
71 /* RDMA QP Service Type codes for Discovery Log Page entry TSAS
75 NVMF_RDMA_PRTYPE_NOT_SPECIFIED
= 0, /* No Provider Specified */
76 NVMF_RDMA_PRTYPE_IB
= 1, /* InfiniBand */
77 NVMF_RDMA_PRTYPE_ROCE
= 2, /* InfiniBand RoCE */
78 NVMF_RDMA_PRTYPE_ROCEV2
= 3, /* InfiniBand RoCEV2 */
79 NVMF_RDMA_PRTYPE_IWARP
= 4, /* IWARP */
82 /* RDMA Connection Management Service Type codes for Discovery Log Page
83 * entry TSAS RDMA_CMS field
86 NVMF_RDMA_CMS_RDMA_CM
= 0, /* Sockets based enpoint addressing */
89 #define NVMF_AQ_DEPTH 32
92 NVME_REG_CAP
= 0x0000, /* Controller Capabilities */
93 NVME_REG_VS
= 0x0008, /* Version */
94 NVME_REG_INTMS
= 0x000c, /* Interrupt Mask Set */
95 NVME_REG_INTMC
= 0x0010, /* Interrupt Mask Clear */
96 NVME_REG_CC
= 0x0014, /* Controller Configuration */
97 NVME_REG_CSTS
= 0x001c, /* Controller Status */
98 NVME_REG_NSSR
= 0x0020, /* NVM Subsystem Reset */
99 NVME_REG_AQA
= 0x0024, /* Admin Queue Attributes */
100 NVME_REG_ASQ
= 0x0028, /* Admin SQ Base Address */
101 NVME_REG_ACQ
= 0x0030, /* Admin CQ Base Address */
102 NVME_REG_CMBLOC
= 0x0038, /* Controller Memory Buffer Location */
103 NVME_REG_CMBSZ
= 0x003c, /* Controller Memory Buffer Size */
106 #define NVME_CAP_MQES(cap) ((cap) & 0xffff)
107 #define NVME_CAP_TIMEOUT(cap) (((cap) >> 24) & 0xff)
108 #define NVME_CAP_STRIDE(cap) (((cap) >> 32) & 0xf)
109 #define NVME_CAP_NSSRC(cap) (((cap) >> 36) & 0x1)
110 #define NVME_CAP_MPSMIN(cap) (((cap) >> 48) & 0xf)
111 #define NVME_CAP_MPSMAX(cap) (((cap) >> 52) & 0xf)
113 #define NVME_CMB_BIR(cmbloc) ((cmbloc) & 0x7)
114 #define NVME_CMB_OFST(cmbloc) (((cmbloc) >> 12) & 0xfffff)
115 #define NVME_CMB_SZ(cmbsz) (((cmbsz) >> 12) & 0xfffff)
116 #define NVME_CMB_SZU(cmbsz) (((cmbsz) >> 8) & 0xf)
118 #define NVME_CMB_WDS(cmbsz) ((cmbsz) & 0x10)
119 #define NVME_CMB_RDS(cmbsz) ((cmbsz) & 0x8)
120 #define NVME_CMB_LISTS(cmbsz) ((cmbsz) & 0x4)
121 #define NVME_CMB_CQS(cmbsz) ((cmbsz) & 0x2)
122 #define NVME_CMB_SQS(cmbsz) ((cmbsz) & 0x1)
125 * Submission and Completion Queue Entry Sizes for the NVM command set.
126 * (In bytes and specified as a power of two (2^n)).
128 #define NVME_NVM_IOSQES 6
129 #define NVME_NVM_IOCQES 4
132 NVME_CC_ENABLE
= 1 << 0,
133 NVME_CC_CSS_NVM
= 0 << 4,
134 NVME_CC_MPS_SHIFT
= 7,
135 NVME_CC_ARB_RR
= 0 << 11,
136 NVME_CC_ARB_WRRU
= 1 << 11,
137 NVME_CC_ARB_VS
= 7 << 11,
138 NVME_CC_SHN_NONE
= 0 << 14,
139 NVME_CC_SHN_NORMAL
= 1 << 14,
140 NVME_CC_SHN_ABRUPT
= 2 << 14,
141 NVME_CC_SHN_MASK
= 3 << 14,
142 NVME_CC_IOSQES
= NVME_NVM_IOSQES
<< 16,
143 NVME_CC_IOCQES
= NVME_NVM_IOCQES
<< 20,
144 NVME_CSTS_RDY
= 1 << 0,
145 NVME_CSTS_CFS
= 1 << 1,
146 NVME_CSTS_NSSRO
= 1 << 4,
147 NVME_CSTS_SHST_NORMAL
= 0 << 2,
148 NVME_CSTS_SHST_OCCUR
= 1 << 2,
149 NVME_CSTS_SHST_CMPLT
= 2 << 2,
150 NVME_CSTS_SHST_MASK
= 3 << 2,
153 struct nvme_id_power_state
{
154 __le16 max_power
; /* centiwatts */
157 __le32 entry_lat
; /* microseconds */
158 __le32 exit_lat
; /* microseconds */
167 __u8 active_work_scale
;
172 NVME_PS_FLAGS_MAX_POWER_SCALE
= 1 << 0,
173 NVME_PS_FLAGS_NON_OP_STATE
= 1 << 1,
176 struct nvme_id_ctrl
{
237 struct nvme_id_power_state psd
[32];
242 NVME_CTRL_ONCS_COMPARE
= 1 << 0,
243 NVME_CTRL_ONCS_WRITE_UNCORRECTABLE
= 1 << 1,
244 NVME_CTRL_ONCS_DSM
= 1 << 2,
245 NVME_CTRL_VWC_PRESENT
= 1 << 0,
279 struct nvme_lbaf lbaf
[16];
285 NVME_ID_CNS_NS
= 0x00,
286 NVME_ID_CNS_CTRL
= 0x01,
287 NVME_ID_CNS_NS_ACTIVE_LIST
= 0x02,
288 NVME_ID_CNS_NS_PRESENT_LIST
= 0x10,
289 NVME_ID_CNS_NS_PRESENT
= 0x11,
290 NVME_ID_CNS_CTRL_NS_LIST
= 0x12,
291 NVME_ID_CNS_CTRL_LIST
= 0x13,
295 NVME_NS_FEAT_THIN
= 1 << 0,
296 NVME_NS_FLBAS_LBA_MASK
= 0xf,
297 NVME_NS_FLBAS_META_EXT
= 0x10,
298 NVME_LBAF_RP_BEST
= 0,
299 NVME_LBAF_RP_BETTER
= 1,
300 NVME_LBAF_RP_GOOD
= 2,
301 NVME_LBAF_RP_DEGRADED
= 3,
302 NVME_NS_DPC_PI_LAST
= 1 << 4,
303 NVME_NS_DPC_PI_FIRST
= 1 << 3,
304 NVME_NS_DPC_PI_TYPE3
= 1 << 2,
305 NVME_NS_DPC_PI_TYPE2
= 1 << 1,
306 NVME_NS_DPC_PI_TYPE1
= 1 << 0,
307 NVME_NS_DPS_PI_FIRST
= 1 << 3,
308 NVME_NS_DPS_PI_MASK
= 0x7,
309 NVME_NS_DPS_PI_TYPE1
= 1,
310 NVME_NS_DPS_PI_TYPE2
= 2,
311 NVME_NS_DPS_PI_TYPE3
= 3,
314 struct nvme_smart_log
{
315 __u8 critical_warning
;
321 __u8 data_units_read
[16];
322 __u8 data_units_written
[16];
324 __u8 host_writes
[16];
325 __u8 ctrl_busy_time
[16];
326 __u8 power_cycles
[16];
327 __u8 power_on_hours
[16];
328 __u8 unsafe_shutdowns
[16];
329 __u8 media_errors
[16];
330 __u8 num_err_log_entries
[16];
331 __le32 warning_temp_time
;
332 __le32 critical_comp_time
;
333 __le16 temp_sensor
[8];
338 NVME_SMART_CRIT_SPARE
= 1 << 0,
339 NVME_SMART_CRIT_TEMPERATURE
= 1 << 1,
340 NVME_SMART_CRIT_RELIABILITY
= 1 << 2,
341 NVME_SMART_CRIT_MEDIA
= 1 << 3,
342 NVME_SMART_CRIT_VOLATILE_MEMORY
= 1 << 4,
346 NVME_AER_NOTICE_NS_CHANGED
= 0x0002,
349 struct nvme_lba_range_type
{
360 NVME_LBART_TYPE_FS
= 0x01,
361 NVME_LBART_TYPE_RAID
= 0x02,
362 NVME_LBART_TYPE_CACHE
= 0x03,
363 NVME_LBART_TYPE_SWAP
= 0x04,
365 NVME_LBART_ATTRIB_TEMP
= 1 << 0,
366 NVME_LBART_ATTRIB_HIDE
= 1 << 1,
369 struct nvme_reservation_status
{
385 enum nvme_async_event_type
{
386 NVME_AER_TYPE_ERROR
= 0,
387 NVME_AER_TYPE_SMART
= 1,
388 NVME_AER_TYPE_NOTICE
= 2,
394 nvme_cmd_flush
= 0x00,
395 nvme_cmd_write
= 0x01,
396 nvme_cmd_read
= 0x02,
397 nvme_cmd_write_uncor
= 0x04,
398 nvme_cmd_compare
= 0x05,
399 nvme_cmd_write_zeroes
= 0x08,
401 nvme_cmd_resv_register
= 0x0d,
402 nvme_cmd_resv_report
= 0x0e,
403 nvme_cmd_resv_acquire
= 0x11,
404 nvme_cmd_resv_release
= 0x15,
408 * Descriptor subtype - lower 4 bits of nvme_(keyed_)sgl_desc identifier
410 * @NVME_SGL_FMT_ADDRESS: absolute address of the data block
411 * @NVME_SGL_FMT_OFFSET: relative offset of the in-capsule data block
412 * @NVME_SGL_FMT_INVALIDATE: RDMA transport specific remote invalidation
416 NVME_SGL_FMT_ADDRESS
= 0x00,
417 NVME_SGL_FMT_OFFSET
= 0x01,
418 NVME_SGL_FMT_INVALIDATE
= 0x0f,
422 * Descriptor type - upper 4 bits of nvme_(keyed_)sgl_desc identifier
424 * For struct nvme_sgl_desc:
425 * @NVME_SGL_FMT_DATA_DESC: data block descriptor
426 * @NVME_SGL_FMT_SEG_DESC: sgl segment descriptor
427 * @NVME_SGL_FMT_LAST_SEG_DESC: last sgl segment descriptor
429 * For struct nvme_keyed_sgl_desc:
430 * @NVME_KEY_SGL_FMT_DATA_DESC: keyed data block descriptor
433 NVME_SGL_FMT_DATA_DESC
= 0x00,
434 NVME_SGL_FMT_SEG_DESC
= 0x02,
435 NVME_SGL_FMT_LAST_SEG_DESC
= 0x03,
436 NVME_KEY_SGL_FMT_DATA_DESC
= 0x04,
439 struct nvme_sgl_desc
{
446 struct nvme_keyed_sgl_desc
{
453 union nvme_data_ptr
{
458 struct nvme_sgl_desc sgl
;
459 struct nvme_keyed_sgl_desc ksgl
;
463 * Lowest two bits of our flags field (FUSE field in the spec):
465 * @NVME_CMD_FUSE_FIRST: Fused Operation, first command
466 * @NVME_CMD_FUSE_SECOND: Fused Operation, second command
468 * Highest two bits in our flags field (PSDT field in the spec):
470 * @NVME_CMD_PSDT_SGL_METABUF: Use SGLS for this transfer,
471 * If used, MPTR contains addr of single physical buffer (byte aligned).
472 * @NVME_CMD_PSDT_SGL_METASEG: Use SGLS for this transfer,
473 * If used, MPTR contains an address of an SGL segment containing
474 * exactly 1 SGL descriptor (qword aligned).
477 NVME_CMD_FUSE_FIRST
= (1 << 0),
478 NVME_CMD_FUSE_SECOND
= (1 << 1),
480 NVME_CMD_SGL_METABUF
= (1 << 6),
481 NVME_CMD_SGL_METASEG
= (1 << 7),
482 NVME_CMD_SGL_ALL
= NVME_CMD_SGL_METABUF
| NVME_CMD_SGL_METASEG
,
485 struct nvme_common_command
{
492 union nvme_data_ptr dptr
;
496 struct nvme_rw_command
{
503 union nvme_data_ptr dptr
;
514 NVME_RW_LR
= 1 << 15,
515 NVME_RW_FUA
= 1 << 14,
516 NVME_RW_DSM_FREQ_UNSPEC
= 0,
517 NVME_RW_DSM_FREQ_TYPICAL
= 1,
518 NVME_RW_DSM_FREQ_RARE
= 2,
519 NVME_RW_DSM_FREQ_READS
= 3,
520 NVME_RW_DSM_FREQ_WRITES
= 4,
521 NVME_RW_DSM_FREQ_RW
= 5,
522 NVME_RW_DSM_FREQ_ONCE
= 6,
523 NVME_RW_DSM_FREQ_PREFETCH
= 7,
524 NVME_RW_DSM_FREQ_TEMP
= 8,
525 NVME_RW_DSM_LATENCY_NONE
= 0 << 4,
526 NVME_RW_DSM_LATENCY_IDLE
= 1 << 4,
527 NVME_RW_DSM_LATENCY_NORM
= 2 << 4,
528 NVME_RW_DSM_LATENCY_LOW
= 3 << 4,
529 NVME_RW_DSM_SEQ_REQ
= 1 << 6,
530 NVME_RW_DSM_COMPRESSED
= 1 << 7,
531 NVME_RW_PRINFO_PRCHK_REF
= 1 << 10,
532 NVME_RW_PRINFO_PRCHK_APP
= 1 << 11,
533 NVME_RW_PRINFO_PRCHK_GUARD
= 1 << 12,
534 NVME_RW_PRINFO_PRACT
= 1 << 13,
537 struct nvme_dsm_cmd
{
543 union nvme_data_ptr dptr
;
550 NVME_DSMGMT_IDR
= 1 << 0,
551 NVME_DSMGMT_IDW
= 1 << 1,
552 NVME_DSMGMT_AD
= 1 << 2,
555 struct nvme_dsm_range
{
563 enum nvme_admin_opcode
{
564 nvme_admin_delete_sq
= 0x00,
565 nvme_admin_create_sq
= 0x01,
566 nvme_admin_get_log_page
= 0x02,
567 nvme_admin_delete_cq
= 0x04,
568 nvme_admin_create_cq
= 0x05,
569 nvme_admin_identify
= 0x06,
570 nvme_admin_abort_cmd
= 0x08,
571 nvme_admin_set_features
= 0x09,
572 nvme_admin_get_features
= 0x0a,
573 nvme_admin_async_event
= 0x0c,
574 nvme_admin_ns_mgmt
= 0x0d,
575 nvme_admin_activate_fw
= 0x10,
576 nvme_admin_download_fw
= 0x11,
577 nvme_admin_ns_attach
= 0x15,
578 nvme_admin_keep_alive
= 0x18,
579 nvme_admin_format_nvm
= 0x80,
580 nvme_admin_security_send
= 0x81,
581 nvme_admin_security_recv
= 0x82,
585 NVME_QUEUE_PHYS_CONTIG
= (1 << 0),
586 NVME_CQ_IRQ_ENABLED
= (1 << 1),
587 NVME_SQ_PRIO_URGENT
= (0 << 1),
588 NVME_SQ_PRIO_HIGH
= (1 << 1),
589 NVME_SQ_PRIO_MEDIUM
= (2 << 1),
590 NVME_SQ_PRIO_LOW
= (3 << 1),
591 NVME_FEAT_ARBITRATION
= 0x01,
592 NVME_FEAT_POWER_MGMT
= 0x02,
593 NVME_FEAT_LBA_RANGE
= 0x03,
594 NVME_FEAT_TEMP_THRESH
= 0x04,
595 NVME_FEAT_ERR_RECOVERY
= 0x05,
596 NVME_FEAT_VOLATILE_WC
= 0x06,
597 NVME_FEAT_NUM_QUEUES
= 0x07,
598 NVME_FEAT_IRQ_COALESCE
= 0x08,
599 NVME_FEAT_IRQ_CONFIG
= 0x09,
600 NVME_FEAT_WRITE_ATOMIC
= 0x0a,
601 NVME_FEAT_ASYNC_EVENT
= 0x0b,
602 NVME_FEAT_AUTO_PST
= 0x0c,
603 NVME_FEAT_HOST_MEM_BUF
= 0x0d,
604 NVME_FEAT_KATO
= 0x0f,
605 NVME_FEAT_SW_PROGRESS
= 0x80,
606 NVME_FEAT_HOST_ID
= 0x81,
607 NVME_FEAT_RESV_MASK
= 0x82,
608 NVME_FEAT_RESV_PERSIST
= 0x83,
609 NVME_LOG_ERROR
= 0x01,
610 NVME_LOG_SMART
= 0x02,
611 NVME_LOG_FW_SLOT
= 0x03,
612 NVME_LOG_DISC
= 0x70,
613 NVME_LOG_RESERVATION
= 0x80,
614 NVME_FWACT_REPL
= (0 << 3),
615 NVME_FWACT_REPL_ACTV
= (1 << 3),
616 NVME_FWACT_ACTV
= (2 << 3),
619 struct nvme_identify
{
625 union nvme_data_ptr dptr
;
630 struct nvme_features
{
636 union nvme_data_ptr dptr
;
642 struct nvme_create_cq
{
656 struct nvme_create_sq
{
670 struct nvme_delete_queue
{
680 struct nvme_abort_cmd
{
690 struct nvme_download_firmware
{
695 union nvme_data_ptr dptr
;
701 struct nvme_format_cmd
{
711 struct nvme_get_log_page_command
{
717 union nvme_data_ptr dptr
;
729 * Fabrics subcommands.
731 enum nvmf_fabrics_opcode
{
732 nvme_fabrics_command
= 0x7f,
735 enum nvmf_capsule_command
{
736 nvme_fabrics_type_property_set
= 0x00,
737 nvme_fabrics_type_connect
= 0x01,
738 nvme_fabrics_type_property_get
= 0x04,
741 struct nvmf_common_command
{
751 * The legal cntlid range a NVMe Target will provide.
752 * Note that cntlid of value 0 is considered illegal in the fabrics world.
753 * Devices based on earlier specs did not have the subsystem concept;
754 * therefore, those devices had their cntlid value set to 0 as a result.
756 #define NVME_CNTLID_MIN 1
757 #define NVME_CNTLID_MAX 0xffef
758 #define NVME_CNTLID_DYNAMIC 0xffff
760 #define MAX_DISC_LOGS 255
762 /* Discovery log page entry */
763 struct nvmf_disc_rsp_page_entry
{
772 char trsvcid
[NVMF_TRSVCID_SIZE
];
774 char subnqn
[NVMF_NQN_FIELD_LEN
];
775 char traddr
[NVMF_TRADDR_SIZE
];
777 char common
[NVMF_TSAS_SIZE
];
789 /* Discovery log page header */
790 struct nvmf_disc_rsp_page_hdr
{
795 struct nvmf_disc_rsp_page_entry entries
[0];
798 struct nvmf_connect_command
{
804 union nvme_data_ptr dptr
;
814 struct nvmf_connect_data
{
818 char subsysnqn
[NVMF_NQN_FIELD_LEN
];
819 char hostnqn
[NVMF_NQN_FIELD_LEN
];
823 struct nvmf_property_set_command
{
836 struct nvmf_property_get_command
{
848 struct nvme_command
{
850 struct nvme_common_command common
;
851 struct nvme_rw_command rw
;
852 struct nvme_identify identify
;
853 struct nvme_features features
;
854 struct nvme_create_cq create_cq
;
855 struct nvme_create_sq create_sq
;
856 struct nvme_delete_queue delete_queue
;
857 struct nvme_download_firmware dlfw
;
858 struct nvme_format_cmd format
;
859 struct nvme_dsm_cmd dsm
;
860 struct nvme_abort_cmd abort
;
861 struct nvme_get_log_page_command get_log_page
;
862 struct nvmf_common_command fabrics
;
863 struct nvmf_connect_command connect
;
864 struct nvmf_property_set_command prop_set
;
865 struct nvmf_property_get_command prop_get
;
869 static inline bool nvme_is_write(struct nvme_command
*cmd
)
874 * Why can't we simply have a Fabrics In and Fabrics out command?
876 if (unlikely(cmd
->common
.opcode
== nvme_fabrics_command
))
877 return cmd
->fabrics
.opcode
& 1;
878 return cmd
->common
.opcode
& 1;
883 * Generic Command Status:
885 NVME_SC_SUCCESS
= 0x0,
886 NVME_SC_INVALID_OPCODE
= 0x1,
887 NVME_SC_INVALID_FIELD
= 0x2,
888 NVME_SC_CMDID_CONFLICT
= 0x3,
889 NVME_SC_DATA_XFER_ERROR
= 0x4,
890 NVME_SC_POWER_LOSS
= 0x5,
891 NVME_SC_INTERNAL
= 0x6,
892 NVME_SC_ABORT_REQ
= 0x7,
893 NVME_SC_ABORT_QUEUE
= 0x8,
894 NVME_SC_FUSED_FAIL
= 0x9,
895 NVME_SC_FUSED_MISSING
= 0xa,
896 NVME_SC_INVALID_NS
= 0xb,
897 NVME_SC_CMD_SEQ_ERROR
= 0xc,
898 NVME_SC_SGL_INVALID_LAST
= 0xd,
899 NVME_SC_SGL_INVALID_COUNT
= 0xe,
900 NVME_SC_SGL_INVALID_DATA
= 0xf,
901 NVME_SC_SGL_INVALID_METADATA
= 0x10,
902 NVME_SC_SGL_INVALID_TYPE
= 0x11,
904 NVME_SC_SGL_INVALID_OFFSET
= 0x16,
905 NVME_SC_SGL_INVALID_SUBTYPE
= 0x17,
907 NVME_SC_LBA_RANGE
= 0x80,
908 NVME_SC_CAP_EXCEEDED
= 0x81,
909 NVME_SC_NS_NOT_READY
= 0x82,
910 NVME_SC_RESERVATION_CONFLICT
= 0x83,
913 * Command Specific Status:
915 NVME_SC_CQ_INVALID
= 0x100,
916 NVME_SC_QID_INVALID
= 0x101,
917 NVME_SC_QUEUE_SIZE
= 0x102,
918 NVME_SC_ABORT_LIMIT
= 0x103,
919 NVME_SC_ABORT_MISSING
= 0x104,
920 NVME_SC_ASYNC_LIMIT
= 0x105,
921 NVME_SC_FIRMWARE_SLOT
= 0x106,
922 NVME_SC_FIRMWARE_IMAGE
= 0x107,
923 NVME_SC_INVALID_VECTOR
= 0x108,
924 NVME_SC_INVALID_LOG_PAGE
= 0x109,
925 NVME_SC_INVALID_FORMAT
= 0x10a,
926 NVME_SC_FW_NEEDS_CONV_RESET
= 0x10b,
927 NVME_SC_INVALID_QUEUE
= 0x10c,
928 NVME_SC_FEATURE_NOT_SAVEABLE
= 0x10d,
929 NVME_SC_FEATURE_NOT_CHANGEABLE
= 0x10e,
930 NVME_SC_FEATURE_NOT_PER_NS
= 0x10f,
931 NVME_SC_FW_NEEDS_SUBSYS_RESET
= 0x110,
932 NVME_SC_FW_NEEDS_RESET
= 0x111,
933 NVME_SC_FW_NEEDS_MAX_TIME
= 0x112,
934 NVME_SC_FW_ACIVATE_PROHIBITED
= 0x113,
935 NVME_SC_OVERLAPPING_RANGE
= 0x114,
936 NVME_SC_NS_INSUFFICENT_CAP
= 0x115,
937 NVME_SC_NS_ID_UNAVAILABLE
= 0x116,
938 NVME_SC_NS_ALREADY_ATTACHED
= 0x118,
939 NVME_SC_NS_IS_PRIVATE
= 0x119,
940 NVME_SC_NS_NOT_ATTACHED
= 0x11a,
941 NVME_SC_THIN_PROV_NOT_SUPP
= 0x11b,
942 NVME_SC_CTRL_LIST_INVALID
= 0x11c,
945 * I/O Command Set Specific - NVM commands:
947 NVME_SC_BAD_ATTRIBUTES
= 0x180,
948 NVME_SC_INVALID_PI
= 0x181,
949 NVME_SC_READ_ONLY
= 0x182,
952 * I/O Command Set Specific - Fabrics commands:
954 NVME_SC_CONNECT_FORMAT
= 0x180,
955 NVME_SC_CONNECT_CTRL_BUSY
= 0x181,
956 NVME_SC_CONNECT_INVALID_PARAM
= 0x182,
957 NVME_SC_CONNECT_RESTART_DISC
= 0x183,
958 NVME_SC_CONNECT_INVALID_HOST
= 0x184,
960 NVME_SC_DISCOVERY_RESTART
= 0x190,
961 NVME_SC_AUTH_REQUIRED
= 0x191,
964 * Media and Data Integrity Errors:
966 NVME_SC_WRITE_FAULT
= 0x280,
967 NVME_SC_READ_ERROR
= 0x281,
968 NVME_SC_GUARD_CHECK
= 0x282,
969 NVME_SC_APPTAG_CHECK
= 0x283,
970 NVME_SC_REFTAG_CHECK
= 0x284,
971 NVME_SC_COMPARE_FAILED
= 0x285,
972 NVME_SC_ACCESS_DENIED
= 0x286,
973 NVME_SC_UNWRITTEN_BLOCK
= 0x287,
975 NVME_SC_DNR
= 0x4000,
978 struct nvme_completion
{
980 * Used by Admin and Fabrics commands to return data:
987 __le16 sq_head
; /* how much of this queue may be reclaimed */
988 __le16 sq_id
; /* submission queue that generated this entry */
989 __u16 command_id
; /* of the command which completed */
990 __le16 status
; /* did the command fail, and if so, why? */
993 #define NVME_VS(major, minor, tertiary) \
994 (((major) << 16) | ((minor) << 8) | (tertiary))
996 #endif /* _LINUX_NVME_H */