libnvme(9)

💅 libnvme(9) — struct nvme_mi_port_smb

okay so bestie, welcome to the API Manual page for libnvme, and today's main character is struct nvme_mi_port_smb — literally the SMBus Port Specific Data glow-up you didn't know you needed ✨

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🎀 NAME 🎀

struct nvme_mi_port_smb — SMBus Port Specific Data. that's it, that's the vibe 🦋

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🌸 SYNOPSIS 🌸

here's the whole struct, copied exactly, no cap:

struct nvme_mi_port_smb {
    __u8 vpd_addr;
    __u8 mvpd_freq;
    __u8 mme_addr;
    __u8 mme_freq;
    __u8 nvmebm;
    __le32 pdas ;
    __u8 sdformat;
    __u8 rsvd18[14];
 };

look at her. iconic. 💅

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✨ Members ✨

• vpd_addr — Current VPD SMBus/I2C Address 🫶 this is where the VPD is living rn
• mvpd_freq — Maximum VPD Access SMBus/I2C Frequency. the maximum, bestie — don't go over it 🙈
• mme_addr — Current Management Endpoint SMBus/I2C Address 👑 the management endpoint's current addy
• mme_freq — Maximum Management Endpoint SMBus/I2C Frequency. again, maximum. respect the limit 💀
• nvmebm — NVMe Basic Management 🌈
• pdas — PDA Size, the size of the NVMe-MI Persistent Data Area (PDA) is 2^pdas bytes; 0h indicates there is no NVMe-MI PDA 🧚 so like, it's an exponent situation — 2^pdas bytes — and 0h means nope, no NVMe-MI PDA here, not today
• sdformat — Supported Data Format for the NVMe-MI PDA, see enum nvme_mi_port_sdformat 🍓 go peek at the enum, iykyk
• rsvd18 — Reserved 💜 nothing to see here, move along, it's reserved

real talk: rsvd18 is reserved, so don't be out here writing your own lore into it, okay? 🫶

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💖 sign-off 💖

that's the whole page, bestie — struct nvme_mi_port_smb, documented and slaying as ever. this absolute king is from the libnvme API Manual, dated October 2026, and it ate. periodt. ⭐🎀🔥