fbnic_fw_xmit_simple_msg(9)

📦 version 7.3.1, in nixpkgs unstable

💌 fbnic_fw_xmit_simple_msg — NAME ✨

okay so bestie, fbnic_fw_xmit_simple_msg — it transmits a simple, single TLV message with no data attached. that's the whole vibe. a lil header and nothing else, no cap 💅

(this one lives in the Kernel API Manual, section 9, if you were wondering 🎀)

🌸 SYNOPSIS 🌸

int fbnic_fw_xmit_simple_msg (struct fbnic_dev *fbd , u32 msg_type );

🦋 ARGUMENTS 🦋

  • fbd — the FBNIC device structure. literally the device bestie, that's it 💖
  • msg_type — an ENUM value that says which message type you're sending. pick your fighter ✨

🎀 RETURN 🎀

it hands you back one of these values, so pay attention 👀:

  • -EOPNOTSUPP — it's not an ASIC, so the mailbox isn't supported 🙈
  • -ENODEV — device I/O error, something's not okay in there 😭
  • -ENOMEM — failed to allocate the message, no room bestie 💀
  • -EBUSY — no space left in the mailbox, it's full, it's giving crowded 🫶
  • -ENOSPC — the DMA mapping failed ⭐

🔥 DESCRIPTION 🔥

so what this function actually does is send a single TLV header that says "hey, the host wants to take some action." that's it. the header. the announcement. the main character energy 👑

but here's the thing — there are no other side effects. none. so if you're expecting this action to kick off some resultant action, any response is gonna need to be caught via a completion. don't just fire and forget and then act surprised, iykyk 😌

💜 SEE ALSO 💜

kernel file ./drivers/net/ethernet/meta/fbnic/fbnic_fw.c

and the whole friend group 🫶:

mwah 💋 this has been your girl signing off — straight outta ./drivers/net/ethernet/meta/fbnic, dated October 2026, Kernel API Manual section 9, fbnic_fw_xmit_simple_msg(9) era. slay, stay hydrated, and check your completions 💖✨

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