STRUCT NVMET_FC_TARGET_PORT(9)

💖 struct nvmet_fc_target_port(9) 💖

okay bestie, this is the Kernel API Manual entry for struct nvmet_fc_target_port, and it’s literally the little bridge between NVME-FC transport and a LLDD so they can reference a local NVME subsystem port. slay ✨

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🌸 NAME 🌸

struct nvmet_fc_target_port — this is a structure used between NVME-FC transport and a LLDD to reference a local NVME subsystem port. It’s allocated/created by the nvme_fc_register_targetport() transport interface. no cap 🫶

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✨ SYNOPSIS ✨

here’s the exact shape of it, bestie:

       struct nvmet_fc_target_port {
           u32 port_num;
           u64 node_name;
           u64 port_name;
           void *private;
           u32 port_id;
           enum nvme_fc_obj_state port_state;
        };

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🎀 Members 🎀

• port_num — NVME-FC transport subsystem port number 💅
• node_name — FC WWNN for the port 🦋
• port_name — FC WWPN for the port 🎀
• private — pointer to memory allocated alongside the local port structure that is specifically for the LLDD to use. The length of the buffer corresponds to the target_priv_sz value specified in the nvme_fc_target_template supplied by the LLDD. 👑
• port_id — FC N_Port_ID currently assigned the port. Upper 8 bits must be set to 0. ⚠️
• port_state — Operational state of the port. ⭐

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💅 Description 💅

so the fields with static values for the port are initialized by the port_info struct supplied to the registration call. 🧚

then there are the fields with dynamic values. Values may change base on link state. The LLDD may reference fields directly to change them. They’re initialized by the port_info struct supplied to the registration call too. 💖

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🦋 SEE ALSO 🦋

peep the kernel file ./include/linux/nvme-fc-driver.h, plus these iconic structs:

• struct nvmefc_ls_req(9)
• struct nvmefc_ls_rsp(9)
• struct nvme_fc_port_info(9)
• struct nvmefc_fcp_req(9)
• struct nvme_fc_local_port(9)
• struct nvme_fc_remote_port(9)
• struct nvme_fc_port_template(9)
• struct nvmet_fc_port_info(9)
• struct nvmefc_tgt_fcp_req(9)
• struct nvmet_fc_target_template(9)

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source/version: ./include/linux · dated October 2026 · manual: struct nvmet_fc_target_port(9) — mwah 💋