nvme_init_compare(9)

📦 version 3.2, in arch rolling

✨ nvme_init_compare 💅

okay so bestie, welcome to the libnvme API manual — this one's page is nvme_init_compare(9) and it's lowkey a little glow-up for a passthru command buffer 🎀

🌸 NAME 🌸

nvme_init_compare — literally initializes the passthru command for a user compare command, no cap 🫶

🦋 SYNOPSIS 🦋

void nvme_init_compare (struct libnvme_passthru_cmd *cmd , __u32 nsid ,
__u64 slba , __u16 nlb , __u16 control , __u8 cev , void *data , __u32
data_len , void *metadata , __u32 metadata_len );

like, that's the whole signature, copying it exactly because we do not mess with the source ✨

🎀 ARGUMENTS 🎀

  • cmd — the passthru command you're gonna use, she's the main character 👑
  • nsid — Namespace ID, iykyk
  • slba — Starting logical block, the beginning of the vibe check
  • nlb — Number of logical blocks, and bestie listen: it's 0-based 💀
  • control — Command control flags, see enum nvme_io_control_flags
  • cev — Command Extension Value (and heads up, CETYPE is non-zero here 🙈)
  • data — Pointer to the user address of the data buffer
  • data_len — Length of the user buffer, data, in bytes 🍓
  • metadata — Pointer to the user address of the metadata buffer
  • metadata_len — Length of the user buffer, metadata, in bytes

💜 DESCRIPTION 💜

So like — this function initializes the passthru command buffer for the Compare command. That's it, that's the whole thing, she's simple and she slays 💅✨

fr fr, don't sleep on the 0-based thing for nlb — that's the one detail that'll get you 😭

okay bye bestie, go forth and compare 🦋 this was the libnvme API manual, page nvme_init_compare(9), dated October 2026 — periodt 💖

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