IBV_INC_RKEY(3)

💅 IBV_INC_RKEY 💅

okay so bestie, welcome to the Libibverbs Programmer's Manual ✨ — this one's a lil baby page but it's lowkey iconic, let's get into it 🫶

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🌸 NAME 🌸

ibv_inc_rkey — literally just creates a new rkey from the given one, no cap 🎀

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🦋 SYNOPSIS 🦋

#include <infiniband/verbs.h>

uint32_t ibv_inc_rkey(uint32_t rkey);

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✨ DESCRIPTION ✨

So ibv_inc_rkey() takes your rkey and bumps the 8 LSB of it, then hands you back the shiny new value 💖 like it's giving "tiny little increment, big little consequences," yk? The 8 least-significant bits go up and that's the whole vibe ✨

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🍓 RETURN VALUE 🍓

ibv_inc_rkey() returns the new rkey. that's it. that's the return value 🫶 she gives you the new one and she's done 💅

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👑 NOTES 👑

okay so the tea ☕ — this verb generates a new rkey that's different from the previous one on its tag part, but has the same index (bits 0xffffff00). so the tag changes, the index stays put, slay 💅

A use case for this verb can be to create a new rkey from a Memory window's rkey when binding it to a Memory region. iykyk 😌🔥

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🧚 AUTHORS 🧚

• Majd Dibbiny <majd@mellanox.com>
• Yishai Hadas <yishaih@mellanox.com>

give them their flowers fr fr 💐👑

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and that's the whole page bestie — brought to you by libibverbs, dated 2015-01-29 🗓️✨ go forth and increment those rkeys, mwah 💋