1libnvme(9)                        API Manual                        libnvme(9)
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NAME

6       struct nvme_passthru_cmd64 - 64-bit nvme passthrough command structure
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SYNOPSIS

9       struct nvme_passthru_cmd64 {
10           __u8 opcode;
11           __u8 flags;
12           __u16 rsvd1;
13           __u32 nsid;
14           __u32 cdw2;
15           __u32 cdw3;
16           __u64 metadata;
17           __u64 addr;
18           __u32 metadata_len;
19           __u32 data_len;
20           __u32 cdw10;
21           __u32 cdw11;
22           __u32 cdw12;
23           __u32 cdw13;
24           __u32 cdw14;
25           __u32 cdw15;
26           __u32 timeout_ms;
27           __u32 rsvd2;
28           __u64 result;
29        };
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Members

33       opcode      Operation  code, see enum nvme_io_opcodes and enum nvme_ad‐
34                   min_opcodes
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36       flags       Not supported: intended for command flags (eg: SGL, FUSE)
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38       rsvd1       Reserved for future use
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40       nsid        Namespace Identifier, or Fabrics type
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42       cdw2        Command Dword 2 (no spec defined use)
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44       cdw3        Command Dword 3 (no spec defined use)
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46       metadata    User space address to metadata buffer (NULL if not used)
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48       addr        User space address to data buffer (NULL if not used)
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50       metadata_len
51                   Metadata buffer transfer length
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53       data_len    Data buffer transfer length
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55       cdw10       Command Dword 10 (command specific)
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57       cdw11       Command Dword 11 (command specific)
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59       cdw12       Command Dword 12 (command specific)
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61       cdw13       Command Dword 13 (command specific)
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63       cdw14       Command Dword 14 (command specific)
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65       cdw15       Command Dword 15 (command specific)
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67       timeout_ms  If non-zero, overrides system default timeout in  millisec‐
68                   onds
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70       rsvd2       Reserved for future use (and fills an implicit struct pad
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72       result      Set on completion to the command's CQE DWORD 0-1 controller
73                   response
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77April 2023                struct nvme_passthru_cmd64                libnvme(9)