megasas_fire_cmd_xscale(9)

📦 version 7.3.1, in nixpkgs unstable

💅 megasas_fire_cmd_xscale(9) 💅

okay so bestie, welcome to the Kernel API Manual — yes, the kernel kernel, we're in the big leagues now 🫶. This page is all about megasas_fire_cmd_xscale, which is genuinely one of the most main-character function names in the whole megaraid_sas lineup. "fire cmd"? it's giving action movie. it's giving launch codes. and honestly? it does send the command to the FW. slay.

✨ NAME ✨

megasas_fire_cmd_xscale — literally sends the command to the FW 🔥 (that's the whole job, and she does it iconically)

🌸 SYNOPSIS 🌸

void megasas_fire_cmd_xscale (struct megasas_instance *instance ,
dma_addr_t frame_phys_addr , u32 frame_count , struct
megasas_register_set __iomem *regs );

no cap, that's the exact signature, don't come for me 💅

🦋 ARGUMENTS 🦋

four args, four little besties, each with a job:

  • instance — the adapter soft state 💖 like, the whole controller's vibe in one struct
  • frame_phys_addr — the physical address of the cmd 📬 where the command actually lives in memory
  • frame_count — how many frames the command needs 🎀 (yes, plural, she can be multi-frame)
  • regs — the MFI register set 🧚 the hardware knobs we're about to go press

⭐ SEE ALSO ⭐

bestie there are so many siblings. this family is huge. i'm putting them in little groups so you don't get lost, but every single one is here, fr fr 👑

the kernel file it lives in:

  • ./drivers/scsi/megaraid/megaraid_sas_base.c

the general megasas besties:

the xscale squad (this function's direct family 💜):

the ppc crew:

the skinny girlies:

the gen2 girlies:

issuing + building commands:

completion + timing:

the dump girlies (for when things go 💀):

resets, aborts, and other dramatic moments:

async events + completion paths:

bringing the controller to life (and taking it apart):

queries + controller info:

irqs, jbod maps, device lists:

init + teardown the big ones:

shutdown, suspend, resume, detach:

management ioctls:

device list updating:

module init + exit (the beginning and the end, iconique):

ok and that's the whole page bestie 🎀 go forth and fire some commands, you're gonna eat 💅✨

and that's a wrap! this lil page lives in ./drivers/scsi/megaraid, dated October 2026 — keep it close, love u, bye 🦋💖🌈

📦 where this page comes from