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

6       struct nvme_mi_admin_req_hdr - Admin command request header.
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SYNOPSIS

9       struct nvme_mi_admin_req_hdr {
10           struct nvme_mi_msg_hdr hdr;
11           __u8 opcode;
12           __u8 flags;
13           __le16 ctrl_id;
14           __le32 cdw1, cdw2, cdw3, cdw4, cdw5;
15           __le32 doff;
16           __le32 dlen;
17           __le32 rsvd0, rsvd1;
18           __le32 cdw10, cdw11, cdw12, cdw13, cdw14, cdw15;
19        };
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Members

23       hdr         Generic MI message header
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25       opcode      Admin command opcode (using enum nvme_admin_opcode)
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27       flags       Command  Flags, indicating dlen and doff validity; Only de‐
28                   fined in NVMe-MI version 1.1,  no  fields  defined  in  1.2
29                   (where the dlen/doff are always considered valid).
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31       ctrl_id     Controller ID target of command
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33       cdw1        Submission Queue Entry doubleword 1
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35       cdw2        Submission Queue Entry doubleword 2
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37       cdw3        Submission Queue Entry doubleword 3
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39       cdw4        Submission Queue Entry doubleword 4
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41       cdw5        Submission Queue Entry doubleword 5
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43       doff        Offset of data to return from command
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45       dlen        Length of sent/returned data
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47       rsvd0       Reserved
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49       rsvd1       Reserved
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51       cdw10       Submission Queue Entry doubleword 10
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53       cdw11       Submission Queue Entry doubleword 11
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55       cdw12       Submission Queue Entry doubleword 12
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57       cdw13       Submission Queue Entry doubleword 13
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59       cdw14       Submission Queue Entry doubleword 14
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61       cdw15       Submission Queue Entry doubleword 15
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Description

64       Wire  format for Admin command message headers, defined in section 6 of
65       NVMe-MI.
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69April 2023               struct nvme_mi_admin_req_hdr               libnvme(9)
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