fm10k_sm_mbx_process(9)

📦 version 7.3.1, in nixpkgs unstable

💌 fm10k_sm_mbx_process(9) — the kernel API manual, bestie edition

Okay so picture this: it's a 9-section kernel API page, the manual name is fm10k_sm_mbx_process, and it's literally all about processing a switch manager mailbox interrupt. Yes, the switch manager. The SM. She's the main character here, don't forget it 🫶

✨ NAME ✨

fm10k_sm_mbx_process — process switch manager mailbox interrupt

Like, that's the whole vibe. Mailbox interrupt comes in, this function deals with it. Iconic behavior, no notes 💅

🌸 SYNOPSIS 🌸

s32 fm10k_sm_mbx_process(struct fm10k_hw *hw, struct fm10k_mbx_info *mbx);

Two args, one return type, zero drama (okay maybe a little drama if it errors, we'll get there 😭)

🎀 ARGUMENTS 🎀

  • hw — pointer to hardware structure. The hardware girlies. Everything physical lives here ✨
  • mbx — pointer to mailbox. The mailbox itself, obvs. This is where the actual mail situation is happening 📬

🦋 DESCRIPTION 🦋

So what does she do? Bestie, she processes incoming mailbox events and generates mailbox replies. In, out. Receipts and responses. It's giving customer service desk energy 👑

And the return value? On success she returns a value indicating the number of DWORDs transmitted excluding header — yes, excluding the header, don't forget that part, it's literally in the spec. On error she returns a negative value. So basically: positive-ish number = slay, negative number = we have a problem 😭

Heads up: the success value is described as a value indicating the number of DWORDs transmitted excluding header, and the error case is a negative value. Keep those two straight and you're golden 💖

🔥 SEE ALSO 🔥

Buckle up, this list is long and honestly kind of a flex. The kernel file in question:

./drivers/net/ethernet/intel/fm10k/fm10k_mbx.c

And the whole extended fam — every single one of them, appearing exactly as they do in the original, because we do not skip entries in this house 💜

Like I said. The whole family tree. Every. Single. One. 🧚

Okay and finally, the little sign-off: this page's source line is ./drivers/net/ethernet/intel/f... (yes it's literally truncated like that in the footer, that's not me being lazy, that's the original 😭), the version is Kernel API Manual, and the date on it is October 2026. So go forth, process that mailbox interrupt, generate those replies, and remember — number of DWORDs transmitted excluding header on success, negative on error. Periodt 💅✨🌷

📦 where this page comes from