libnvme(2)

📦
version 1.16.2 · 12 versions
, in ubuntu stonking

✨ libnvme — struct nvme_copy_range_f2 ✨

okay bestie, so we're diving into the libnvme API manual (that's the libnvme(2) section of the manual, for the record 👑) and today's main character is the Copy — Source Range Entries Descriptor, Format 2h. say it with me: format two-h. 💅

💖 NAME 💖

struct nvme_copy_range_f2 — the Copy - Source Range Entries Descriptor Format 2h. it's giving "tell me where to copy from and what I should expect when I get there" 🦋

🌸 SYNOPSIS 🌸

struct nvme_copy_range_f2 {
    __le32 snsid;
    __u8 rsvd4[4];
    __le64 slba;
    __le16 nlb;
    __u8 rsvd18[4];
    __le16 sopt;
    __le32 eilbrt;
    __le16 elbat;
    __le16 elbatm;
 };

look at her. absolutely iconic struct layout, no cap. 🎀

🧚 Members 🧚

  • snsid — Source Namespace Identifier. literally which namespace we're pulling from, periodt. 💜
  • rsvd4 — Reserved. she's just sitting there taking up space, respectfully. 🙈
  • slba — Starting LBA. the beginning of the block address range, bestie. this is where the vibe check starts. ⭐
  • nlb — Number of Logical Blocks. how many blocks we're moving, fr fr. 🔥
  • rsvd18 — Reserved. another little gap, she's reserved for a reason (iykyk). 💖
  • sopt — Source Options. the options for the source side of things. 🌈
  • eilbrt — Expected Initial Logical Block Reference Tag / Expected Logical Block Storage Tag. it's giving "the tag I expect to see", both flavors: reference tag and storage tag. very double-duty of her. 👑
  • elbat — Expected Logical Block Application Tag. the application tag we're expecting. ✨
  • elbatm — Expected Logical Block Application Tag Mask. and here's the mask that goes with it, so we know which bits actually matter. 💅
ok that's the whole struct, no skips, no summarizing, every single member got her moment 🫶 always copy responsibly, bestie 💖

that was the libnvme API manual, struct nvme_copy_range_f2 page, dated July 2026 — mwah, go forth and copy your ranges 💅✨🦋

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