NVM Express Data Structures
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enum nvme_cmd_create_q_flags
Create queue flags
Constants
NVME_Q_PC
Queue is physical contiguous
NVME_CQ_IEN
Interrupts enabled
NVME_SQ_QPRIO_LOW
Queue priority class low
NVME_SQ_QPRIO_MEDIUM
Queue priority class medium
NVME_SQ_QPRIO_HIGH
Queue priority class high
NVME_SQ_QPRIO_URGENT
Queue priority class urgent
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union nvme_cmd
Generic NVMe command
Definition:
union nvme_cmd {
struct {
uint8_t opcode;
uint8_t flags;
uint16_t cid;
leint32_t nsid;
leint32_t cdw2;
leint32_t cdw3;
leint64_t mptr;
union nvme_dptr dptr;
leint32_t cdw10;
leint32_t cdw11;
leint32_t cdw12;
leint32_t cdw13;
leint32_t cdw14;
leint32_t cdw15;
};
struct nvme_cmd_identify identify;
struct nvme_cmd_create_cq create_cq;
struct nvme_cmd_create_sq create_sq;
struct nvme_cmd_delete_q delete_q;
struct nvme_cmd_features features;
struct nvme_cmd_log log;
struct nvme_cmd_rw rw;
};
Members
{unnamed_struct}
anonymous
opcode
Opcode of the command to be executed
flags
Command flags (i.e. PSDT, FUSE)
cid
Command identifier
nsid
Namespace identifier
cdw2
2nd command dword
cdw3
3rd command dword
mptr
Metadata PRP/SGL pointer
dptr
Data PRP/SGL pointer (see
union nvme_dptr
)cdw10
10th command dword
cdw11
11th command dword
cdw12
12th command dword
cdw13
13th command dword
cdw14
14th command dword
cdw15
15th command dword
identify
See
struct nvme_cmd_identify
create_cq
See
struct nvme_cmd_create_cq
create_sq
See
struct nvme_cmd_create_sq
delete_q
See
struct nvme_cmd_delete_q
features
See
struct nvme_cmd_features
log
See
struct nvme_cmd_log
rw
See
struct nvme_cmd_rw