mpi3mr_check_reset_dma_mask(9)

📦 version 7.3.1, in nixpkgs unstable

💅 mpi3mr_check_reset_dma_mask(9) — Kernel API Manual ✨

okay bestie, welcome to the mpi3mr_check_reset_dma_mask page, straight out of the Kernel API Manual (the 9 in the parens means it's a kernel function, iykyk). it's short, it's sweet, it does one lil job and does it. let's get into it 🎀

🌸 NAME 🌸

mpi3mr_check_reset_dma_mask — Process IOC facts data

yes the NAME line literally says "Process IOC facts data" and honestly? that's the whole vibe. it's a facts-processing queen 👑

🦋 SYNOPSIS 🦋

int mpi3mr_check_reset_dma_mask (struct mpi3mr_ioc *mrioc );

that's it. that's the whole signature. takes one pointer, gives you back an int. clean, minimal, main character energy 💅

✨ ARGUMENTS ✨

  • mrioc — your Adapter instance reference 🫶 this is the handle to the controller you're poking at, so like, don't lose it, bestie.

💖 DESCRIPTION 💖

so here's the tea: this function checks whether the new DMA mask that firmware is asking for — the one it requested through IOCFacts — actually, like, needs to be set. 🧐

and if it does need setting? it sets it. periodt. no drama, no detours, just vibes and a mask update when required 🔥

that's literally the whole description, ngl. it's giving "small function, big responsibility" energy ⭐

🌈 RETURN 🌈

  • 0 on success 🎉
  • non-zero on failure 💀 (so like, always check it, bestie — do not ghost the return value)

🧚 SEE ALSO 🧚

the source lives in the kernel file ./drivers/scsi/mpi3mr/mpi3mr_fw.c — iconic file, love that for her 💜 and here's the whole friend group, every single one of them, no cap:

💀 quick heads up: mpimr_initialize_reply_sbuf_queues(9) really is spelled that way in here — mpimr, not mpi3mr. that's not a typo on my end bestie, that's the page being the page. don't come for me 🙈

anyway that's the whole page 🎀 you came, you read, you slayed. go set that DMA mask when it needs setting, and stay hydrated 💖

this page is from ./drivers/scsi/mpi3mr, dated October 2026 — consider this your cute lil sign-off 🦋 mwah, bye bestie! 💜

📦 where this page comes from