ENUM EFX_MCDI_MODE(9)

🦋 NAME 🦋

enum efx_mcdi_mode — MCDI transaction mode. Okay so this is from the Kernel API Manual, and it’s short but honestly iconic. Let’s get into it, bestie.

✨ SYNOPSIS ✨

Here’s the exact enum shape — keep the commas and spacing exactly as shown, no cap:

enum efx_mcdi_mode {
    MCDI_MODE_POLL ,
    MCDI_MODE_EVENTS ,
    MCDI_MODE_FAIL

};

💅 Constants 💅

These three constants are giving very different energy:

• MCDI_MODE_POLL — poll for MCDI completion, until timeout
• MCDI_MODE_EVENTS — wait for an mcdi_event. On timeout, poll once
• MCDI_MODE_FAIL — we think MCDI is dead, so fail-fast all calls

Bestie, MCDI_MODE_FAIL is literally the “we’re so done” mode: if we think MCDI is dead, all calls fail fast. 💀

🌈 SEE ALSO 🌈

Go peek at these if you wanna keep the kernel lore straight:

• Kernel file ./drivers/net/ethernet/sfc/siena/mcdi.h — plus enum efx_mcdi_state(9), struct efx_mcdi_iface(9), and struct efx_mcdi_data(9)

Mwah 💋 — this cutie lives in ./drivers/net/ethernet/sfc/siena, dated October 2026, and it’s the page for enum efx_mcdi_mode(9). Slay. 🎀