fm10k_fifo_write_copy(9)

📦 version 7.3.1, in nixpkgs unstable

💖 fm10k_fifo_write_copy 💖

okay so bestie, we're in the fm10k_fifo_write_copy(9) page of the Kernel API Manual and honestly? this little function is lowkey iconic. it's giving "quietly doing the important copying work while everyone else gets the credit" energy. let's get into it 🫶

✨ NAME ✨

fm10k_fifo_write_copy — pulls data off of msg and places it in FIFO ✨

🌸 SYNOPSIS 🌸

void fm10k_fifo_write_copy (struct fm10k_mbx_fifo *fifo , const u32 *msg
, u16 tail_offset , u16 len );

no cap, that's the whole signature. void return, so like… she doesn't gossip back. she just does the thing 💅

🎀 ARGUMENTS 🎀

  • fifo — pointer to FIFO. this is THE fifo, the main character, the one we're writing into 💖
  • msg — message array to populate. yes bestie, that's what the manpage says, word for word — we're copying between msg and the FIFO and this is the array in question 🦋
  • tail_offset — additional offset to add to tail pointer. so like, if you're not feeling the plain tail vibes, this lets you nudge the pointer elsewhere 🌈
  • len — length of FIFO to copy into message header. keeping it real about how much we're moving 🍓

💜 DESCRIPTION 💜

so what does she actually do? this function will take a message and copy it into a section of the FIFO. that's it, that's the job, and she does it flawlessly 🔥

and here's the fun part: in order to get something into a location other than just the tail, you can use tail_offset to adjust the pointer. literally the whole trick. no cap 🧚

👑 SEE ALSO 👑

the friend group is massive, bestie. buckle up 💀

ok that's genuinely everyone. iykyk 💅

and that's the whole page, bestie!! sourced from ./drivers/net/ethernet/intel/f... and dated October 2026 — go drink some water, you just read an entire kernel API manpage and you ate 💖✨🎀🦋🌸👑

📦 where this page comes from