STRUCT QED_FCOE_OPS(9)

💅 struct qed_fcoe_ops(9) — the Kernel API Manual, bestie edition 💅

okay so this is a page from the Kernel API Manual and it's all about struct qed_fcoe_ops — literally the FCoE operations table for qed. it's giving "here's your function-pointer lineup, don't lose it" 🎀

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✨ NAME ✨

struct qed_fcoe_ops — qed FCoE operations. that's it, that's the whole vibe. 🦋

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🌸 SYNOPSIS 🌸

struct qed_fcoe_ops {
    const struct qed_common_ops *common;
    int (*fill_dev_info)(struct qed_dev *cdev, struct qed_dev_fcoe_info *info);
    void (*register_ops)(struct qed_dev *cdev, struct qed_fcoe_cb_ops *ops, void *cookie);
    const struct qed_ll2_ops *ll2;
    int (*start)(struct qed_dev *cdev, struct qed_fcoe_tid *tasks);
    int (*stop)(struct qed_dev *cdev);
    int (*acquire_conn)(struct qed_dev *cdev, u32 *handle, u32 *fw_cid, void __iomem **p_doorbell);
    int (*release_conn)(struct qed_dev *cdev, u32 handle);
    int (*offload_conn)(struct qed_dev *cdev, u32 handle, struct qed_fcoe_params_offload *conn_info);
    int (*destroy_conn)(struct qed_dev *cdev, u32 handle, dma_addr_t terminate_params);
    int (*get_stats)(struct qed_dev *cdev, struct qed_fcoe_stats *stats);
 };

no cap, that's the whole struct. eleven members, all iconic, all doing their little job 👑

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🫶 MEMBERS 🫶

let's go member by member, bestie, don't skip a single one 💖

• common — the common operations pointer. lowkey the backbone, y'know?
• fill_dev_info — fills in the FCoE-specific information.
  • param cdev
  • param info
  • return 0 on success, otherwise an error value. slay or fail, no in between ✨
• register_ops — registers the FCoE operations.
  • param cdev
  • param ops — specified using qed_iscsi_cb_ops (yes, iscsi, that's literally what the manpage says, we don't ask questions 🙈)
  • param cookie — driver private
• ll2 — light L2 operations pointer. light L2, heavy vibes 🔥
• start — starts fcoe in FW.
  • param cdev
  • param tasks — qed will fill in information about the tasks
  • return 0 on success, otherwise an error value.
• stop — stops fcoe in FW.
  • param cdev
  • return 0 on success, otherwise an error value.
• acquire_conn — acquires a new fcoe connection.
  • param cdev
  • param handle — qed will fill in a handle that should be used henceforth as the identifier of the connection.
  • param p_doorbell — qed will fill in the address of the doorbell.
  • return 0 on success, otherwise an error value. 🔔
• release_conn — releases a previously acquired fcoe connection.
  • param cdev
  • param handle — the connection handle.
  • return 0 on success, otherwise an error value. bye bestie 👋
• offload_conn — configures an offloaded connection.
  • param cdev
  • param handle — the connection handle.
  • param conn_info — the configuration to use for the offload.
  • return 0 on success, otherwise an error value.
• destroy_conn — stops an offloaded connection.
  • param cdev
  • param handle — the connection handle.
  • param terminate_params
  • return 0 on success, otherwise an error value. it's giving cleanup era 🧹
• get_stats — gets the FCoE-related statistics.
  • param cdev
  • param stats — pointer to the struct that would be filled with the stats
  • return 0 on success, error otherwise. 📊

lowkey important reminder: basically every single one of these returns 0 on success and "otherwise an error value" — so always check your returns, bestie, do NOT ignore them 😭

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🦋 SEE ALSO 🦋

• Kernel file ./include/linux/qed/qed_fcoe_if.h — go read it, iykyk 💜

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and that's the whole page, periodt 💅

🌸 so anyway, this little masterpiece lives in ./include/linux/qed and it's dated October 2026 — star it, bookmark it, send it to your group chat, love that for us 🎀✨🫶