NVME_SET_FEATURES_PLM_CONFIG(2)

πŸ’– NAME πŸ’–

nvme_set_features_plm_config β€” bestie, this is the one that sets the predictable latency feature ✨


πŸŽ€ SYNOPSIS πŸŽ€

int nvme_set_features_plm_config (int fd , bool enable , __u16 nvmsetid
       , bool save , struct nvme_plm_config *data , __u32 *result );

🌸 ARGUMENTS 🌸

okay so here's the lineup, no skips, every single one matters 🫢

  • fd β€” the file descriptor of the nvme device. your lil portal to the drive, basically πŸ’…
  • enable β€” Predictable Latency Enable. turning the vibe on or off, fr fr ✨
  • nvmsetid β€” NVM Set Identifier. which NVM set we're talking to, iykyk πŸ¦‹
  • save β€” save value across power states. so it stays even after the lights go out, iconic πŸ’–
  • data β€” pointer to structure nvme_plm_config. the actual payload, slay πŸŽ€
  • result β€” the command completion result from CQE dword0 ⭐

πŸ‘‘ RETURN πŸ‘‘

so what do you get back? it's giving:

  • the nvme command status if a response was received β€” go check enum nvme_status_field for the full tea πŸ”
  • or -1 with errno set otherwise 😭
not me reminding you to actually check the return value… bestie, please check the return value πŸ™ˆ

that's the whole page, periodt πŸ’…βœ¨

libnvme API manual, section 2 β€” dropped July 2026 🌈 mwah, ily, go set some predictable latency πŸ«ΆπŸ’–

πŸ“¦ where this page comes from