libnvme(9) API Manual libnvme(9)

# [NAME](#NAME)

struct nvme\_mi\_read\_port\_info - Port Information Data Structure

# [SYNOPSIS](#SYNOPSIS)

struct nvme\_mi\_read\_port\_info {  
**\_\_u8 portt;**  
**\_\_u8 prtcap;**  
**\_\_le16 mmctptus;**  
**\_\_le32 meb;**  
**union {**  
**struct nvme\_mi\_port\_pcie pcie;**  
**struct nvme\_mi\_port\_smb smb;**  
**};**  
};

# [Members](#Members)

[portt](#portt)

Port Type

[prtcap](#prtcap)

Port Capabilities, see *enum nvme\_mi\_port\_prtcap*.

[mmctptus](#mmctptus)

Maximum MCTP Transmission Unit Size

[meb](#meb)

Management Endpoint Buffer Size

{unnamed\_union}

anonymous

[pcie](#pcie)

PCIe Port Specific Data

[smb](#smb)

SMBus Port Specific Data

struct nvme\_mi\_read\_port\_info October 2026

---

Document: nvme_mi_read_port_info-libnvme3(2) from nvme-cli 3.2-r0 (Chainguard OS)
Source: https://github.com/linux-nvme/nvme-cli