libnvme(2)

💖 libnvme — section 2, bestie 💖

okay so you opened the libnvme(2) API manual and landed on this page, and it's literally all about one little struct, so let's get into it 🫶

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✨ NAME ✨

struct nvme_streams_directive_params — the Streams Directive: Return Parameters Data Structure 🌊🌸

✨ SYNOPSIS ✨

here's the whole vibe, exactly as it lives in memory, no cap:

struct nvme_streams_directive_params {
    __le16 msl;
    __le16 nssa;
    __le16 nsso;
    __u8 nssc;
    __u8 rsvd[9];
    __le32 sws;
    __le16 sgs;
    __le16 nsa;
    __le16 nso;
    __u8 rsvd2[6];
 };

👑 MEMBERS 👑

every field, one by one, and no we are NOT skipping any 💅

• msl — Max Streams Limit. it's giving "the ceiling, babe" 🔥
• nssa — NVM Subsystem Streams Available. what the subsystem has left to hand out ✨
• nsso — NVM Subsystem Streams Open. how many are open rn 👀
• nssc — NVM Subsystem Stream Capability. the capability situation 🌈
• rsvd — Reserved. do not touch, it's not for you 🙈
• sws — Stream Write Size. so iconic 📏
• sgs — Stream Granularity Size. the granularity 💫
• nsa — Namespace Streams Allocated. how many streams this namespace got 🌸
• nso — Namespace Streams Open. how many of those are open 💜
• rsvd2 — Reserved. again, hands off 💀

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and that's the whole page bestie, go forth and stream responsibly 🎀

this was struct nvme_streams_directive_params, page libnvme(2), from July 2026 — k byeeee 👑✨🦋