gelic_card_decode_one_descr(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

πŸ’– gelic_card_decode_one_descr πŸ’–

hiii bestie, welcome to the Kernel API Manual ✨ today we're looking at gelic_card_decode_one_descr(9) and honestly? it's giving "small function, big job." let's get into it 🫢


✨ NAME ✨

gelic_card_decode_one_descr β€” processes an rx descriptor πŸ’…

🌸 SYNOPSIS 🌸

int gelic_card_decode_one_descr (struct gelic_card *card );

(yeah the spacing is exactly like that, don't come for me 😭)

πŸŽ€ ARGUMENTS πŸŽ€

  • card β€” the card structure. that's the whole argument, no cap πŸ¦‹

πŸ¦‹ DESCRIPTION πŸ¦‹

okay so the return values are the main character energy here:

  • returns 1 if a packet has been sent to the stack πŸ”₯ slay
  • returns -ENOMEM on skb alloc failure 😭 rip
  • otherwise 0 πŸ’€

and what does it actually do? it processes an rx descriptor by iommu-unmapping the data buffer and passing the packet up to the stack. periodt. that's the vibe check and it passed βœ…

not me being obsessed with a function that just unmaps a buffer and sends a packet upstairs β€” but here we are πŸ’œ

🫢 SEE ALSO 🫢

the kernel file is literally right here: ./drivers/net/ethernet/toshiba/ps3_gelic_net.c πŸ“

and here's the whole friend group, all (9) besties:


and that's the whole page bestie 🌈 this one came from the lovely people at ./drivers/net/ethernet/toshiba, dated October 2026, and we are officially done here. bye ily, go read your descriptors πŸ’œπŸŽ€

πŸ“¦ where this page comes from