pvrdma_alloc_mr(9)

💅 pvrdma_alloc_mr(9) — Kernel API Manual ✨

okay so bestie, welcome to the Kernel API Manual, and today's main character is pvrdma_alloc_mr(9). yes we're reading kernel docs for fun now, that's the vibe, don't question it 🎀

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✨ NAME ✨

pvrdma_alloc_mr — allocate a memory region 🧚

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🌸 SYNOPSIS 🌸

struct ib_mr * pvrdma_alloc_mr (struct ib_pd *pd , enum ib_mr_type
mr_type , u32 max_num_sg );

like, that's the whole signature, no cap. it hands you back a struct ib_mr * and takes three things. let's go through them one by one, i got you 🫶

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💖 ARGUMENTS 💖

• pd — the protection domain, literally what it says on the tin 🛡️
• mr_type — the type of memory region. it's giving "pick your flavor" energy ✨
• max_num_sg — maximum number of pages 🔥

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⭐ RETURN ⭐

on success you get an ib_mr pointer back, slay 💅 otherwise it returns an errno. so like, check it. fr fr. don't just assume it worked 😭

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🦋 SEE ALSO 🦋

• Kernel file ./drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c — that's the source, go read it if you're feeling brave 👑
• pvrdma_get_dma_mr(9)
• pvrdma_reg_user_mr(9)
• pvrdma_dereg_mr(9)

the whole squad, honestly. register, get, deregister — the full friend group 🌈

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heads up bestie: this page is from Kernel API Manual, pvrdma_alloc_mr(9), sourced from ./drivers/infiniband/hw/vmw_pv... and dated October 2026. screenshot it, cite it, live your truth 💜

that's the page!! go forth and allocate your memory regions responsibly, i believe in you 🍓✨💖