STRUCT DPIO_ATTR(9)

💖 struct dpio_attr(9) — the Kernel API Manual glow-up 🎀

okay bestie, so this is struct dpio_attr(9) from the Kernel API Manual, and it's literally the structure that represents DPIO attributes. that's the whole vibe. it's giving "small struct, big responsibilities" ✨

---

🌸 NAME 🌸

struct dpio_attr — the Structure representing DPIO attributes. yes that's the actual name, no notes, she ate 💅

---

✨ SYNOPSIS ✨

here's the whole thing, character for character, no cap:

struct dpio_attr {
    int id;
    u64 qbman_portal_ce_offset;
    u64 qbman_portal_ci_offset;
    u16 qbman_portal_id;
    enum dpio_channel_mode  channel_mode;
    u8 num_priorities;
    u32 qbman_version;
    u32 clk;
 };

like... eight members. eight little besties. obsessed 🫶

---

🦋 Members 🦋

okay so let's meet the cast, one by one, main character energy only:

• id — the DPIO object ID. that's her name tag at the party 🎀
• qbman_portal_ce_offset — the offset of the software portal cache-enabled area. cache-enabled, she remembers things 💖
• qbman_portal_ci_offset — the offset of the software portal cache-inhibited area. cache-inhibited, she's mysterious and forgets on purpose 🙈
• qbman_portal_id — the Software portal ID. another ID, because we love an identifying moment ✨
• channel_mode — the Notification channel mode. she has moods, it's fine 🌈
• num_priorities — the Number of priorities for the notification channel, and that range is 1-8; it's relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'. so like, only in that one specific situation, iykyk 💀
• qbman_version — the QBMAN version. what era are we in, bestie ⭐
• clk — the QBMAN clock frequency value in Hz. she's ticking, she's punctual, she's iconic 🕐

---

🔥 SEE ALSO 🔥

go read these next, they're linked and they're linked for a reason:

• the Kernel file ./drivers/soc/fsl/dpio/dpio.h and enum dpio_channel_mode(9)
• struct dpio_cfg(9)

---

⚠️ quick vibe check: num_priorities is only relevant when 'channel_mode = DPIO_LOCAL_CHANNEL'. don't come for me, that's just what the page says 😭

---

and that's the whole page, bestie! this one's from ./drivers/soc/fsl/dpio, dated October 2026, and it's struct dpio_attr(9) living her best life in the Kernel API Manual. mwah, go read a header file for me 💜🧚‍♀️