libnvme(2)

💖 NAME 💖

struct nvme_mi_read_port_info — the Port Information Data Structure, bestie. It's giving "here's the tea on your port" ✨

So real talk: this is a page from the libnvme API Manual, and we're doing one (1) struct today. Let's get into it 🫶

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🎀 SYNOPSIS 🎀

struct nvme_mi_read_port_info {
    __u8 portt;
    __u8 rsvd1;
    __le16 mmctptus;
    __le32 meb;
    union {
      struct nvme_mi_port_pcie pcie;
      struct nvme_mi_port_smb smb;
    };
 };

Look at that little guy. Absolutely iconic layout, no notes 💅

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🌸 Members 🌸

• portt — Port Type. Literally just tells you what kind of port we're talking about. The vibe check of ports 🌈
• rsvd1 — Reserved. Bestie. Do NOT touch this one. It's reserved, meaning it's not yours, it's not mine, it's not for us. Leave it alone 🙈
• mmctptus — Maximum MCTP Transmission Unit Size. Yes that's a mouthful, yes it's important, yes it's exactly what it says on the tin: the max MTU for MCTP 🦋
• meb — Management Endpoint Buffer Size. How big the buffer is at the management endpoint. Size matters, periodt 👑
• {unnamed_union} — anonymous. Yep, it's an unnamed union. No name, no crumbs, just vibes. It's giving mysterious main character energy ✨
• pcie — PCIe Port Specific Data. The PCIe-flavoured details, tucked inside that anonymous union 🎀
• smb — SMBus Port Specific Data. And the SMBus-flavoured details too. Pick your fighter 🔥

Heads up bestie: pcie and smb live in the same anonymous union, so it's one or the other, never both. Don't be greedy 💀

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okay that's the whole page, we ate and left no crumbs 💖

This was the libnvme API Manual (that's the manual name, in case the vibe check needed it), struct nvme_mi_read_port_info edition, dated July 2026. Mwah, ily, go read your structs 🫶✨