mvumi_make_sgl(9)

📦 version 7.3.1, in nixpkgs unstable

💅 mvumi_make_sgl(9) 💅

okay so bestie, welcome to the Kernel API Manual — this one's about mvumi_make_sgl, which is literally the function whose whole job is Prepares SGL. that's it, that's the name. short king behavior but we respect it 🫶

✨ NAME ✨

mvumi_make_sgl — Prepares SGL

like… it prepares the SGL. no notes. iconic honestly 💅

🌸 SYNOPSIS 🌸

int mvumi_make_sgl (struct mvumi_hba *mhba , struct scsi_cmnd *scmd , void *sgl_p , unsigned char *sg_count );

yes the spaces before the commas are on purpose, don't come for me, that's just how it's written 😭

🎀 ARGUMENTS 🎀

  • mhba — Adapter soft state. it's the soft state, of the adapter. that's the whole vibe, that's the whole job 🦋
  • scmd — SCSI command from the mid-layer. mid-layer said "here, take this", and honestly? we did 💖
  • sgl_p — SGL to be filled in. this is the one getting the glow-up — it's to be filled in, you're not reading it, you're writing into it ✨
  • sg_count — return the number of SG elements. note the word return — this isn't just a value you pass, it's a value that comes back out to you 👑 it's carrying the count of SG elements, so don't sleep on it

💜 DESCRIPTION 💜

okay so real talk, super simple:

If successful, this function returns 0. otherwise, it returns -1.

that's it. that's the contract. 0 = slay, -1 = we don't talk about it 🫶

ngl bestie, "otherwise" is doing a lot of heavy lifting in that sentence — but it's literally what the page says, so we're keeping it exactly as is 💀

🦋 SEE ALSO 🦋

first things first, the kernel file itself lives at ./drivers/scsi/mvumi.c — that's the mothership, go say hi 💖

and here's the whole friend group in the mvumi cinematic universe, all of them (9), all of them linked:

main character energy across the board, no cap 🌈

and that's the whole page bestie, go touch some ./drivers/scsi 🧚

✨ this has been mvumi_make_sgl(9), coming to you from ./drivers/scsi, dated October 2026 ✨ 💖🎀🌸

📦 where this page comes from