mraid_mm_setup_dma_pools(9)

📦 version 7.3.1, in nixpkgs unstable

💖 mraid_mm_setup_dma_pools — kernel API manual 💖

okay so bestie, buckle up, because this one's from the kernel API manual and it's literally about setting up dma buffer pools per adapter. yes, per adapter. we're being organized. we're being frugal with memory. main character energy fr fr 🫶

✨ SYNOPSIS ✨

int mraid_mm_setup_dma_pools (mraid_mmadp_t *adp );

like, that's the whole call. one arg. she's simple, she's iconic 💅

🎀 ARGUMENTS 🎀

  • adp — the adapter softstate. that's it, that's the vibe check 🌸

🌟 DESCRIPTION 🌟

okay so here's the tea: we maintain a pool of dma buffers per each adapter. every single adapter gets its own little collection 🧺

and the way it works? each pool has one buffer. one. singular. not a crowd. 😭

so like, say we may have 5 dma pools — one each for 4k, 8k … 64k buffers. we have just one 4k buffer in the 4k pool, one 8k buffer in the 8k pool, etc. 🎀

and why, you ask? because we don't want to waste too much memory by allocating more buffers per each pool. lowkey genius. highkey responsible. no cap 💯

not me being obsessed with a memory allocation strategy. it's giving sustainable. it's giving mindful. 🌈

🦋 SEE ALSO 🦋

kernel file ./drivers/scsi/megaraid/megaraid_mm.c — go read her, she has lore 👑

and the whole friend group:

so yeah, that's the page 💖 sign-off time: this lives at ./drivers/scsi/megaraid, stamped October 2026, and the whole thing is filed under mraid_mm_setup_dma_pools(9). slay, go set up those pools bestie 🎀✨

📦 where this page comes from