t4_read_cim_ibq(9)

📦 version 7.3.1, in nixpkgs unstable

💅 t4_read_cim_ibq(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ this one's a little function with a big job and honestly? it ate. it's t4_read_cim_ibq — say it with me — and it reads the contents of a CIM inbound queue. that's the whole vibe. 🦋

🌸 NAME 🌸

t4_read_cim_ibq — read the contents of a CIM inbound queue. periodt. that's it, that's the function 💅

✨ SYNOPSIS ✨

int t4_read_cim_ibq (struct adapter *adap , unsigned int qid , u32 *data
, size_t n );

like, look at her. she's got four parameters and she knows how to use them 🎀

🎀 ARGUMENTS 🎀

  • adap — the adapter. your girl. the actual hardware handle you're working with 💖
  • qid — the queue index. which queue are we snooping in, bestie? 👀
  • data — where to store the queue contents. bring your own buffer, we're not allocating one for you 🫶
  • n — capacity of data in 32-bit words. aka how much room you've got to work with 🌸

🔥 DESCRIPTION 🔥

so what does she actually do? she reads the contents of the selected CIM queue, starting at address 0, and keeps going up to the capacity of data. iconic behaviour, no notes.

⚠️ important bestie warning: n must be a multiple of 4. no cap, do not test her on this. multiples of 4 or nothing 🔥

and the returns? listen up:

  • returns < 0 on error 😭 (something went wrong, go cry about it)
  • on success, returns the number of 32-bit words actually read — not the capacity, the actual count. she tells you the truth 💯

like, the way this function just... tells you exactly how much she did. main character energy fr fr 👑

🌈 SEE ALSO 🌈

bestie. sit down. hydrate. this list is long and we're getting through all of it, because every single one of these is a friend of the family 💜

like I said. a lot of friends. iykyk 😭💀

🧚 a lil sign-off 🧚

this page lives in ./drivers/net/ethernet/chelsio... and it's dated October 2026 — so yeah, she's from the future, we don't question it 🦋 stay hydrated, pass your pointers correctly, and remember: multiples of 4. always. 💖✨🎀

📦 where this page comes from