nfp_cpp_writeq(9)

💅 nfp_cpp_writeq 💅

okay so bestie, welcome to the Kernel API Manual ✨ — today's main character is nfp_cpp_writeq, and honestly? it's giving simple icon energy. no cap 🫶

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🌸 NAME 🌸

nfp_cpp_writeq — write a u64 word to a CPP location. that's it. that's the whole vibe. one chonky 64-bit word, one address, done 💅

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✨ SYNOPSIS ✨

int nfp_cpp_writeq (struct nfp_cpp *cpp , u32 cpp_id , unsigned long
       long address , u64 value );

like, literally just hand it the handle, the ID, the address and the value and it slays 🔥

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🎀 ARGUMENTS 🎀

• cpp — CPP device handle 💖 this is your lil' connection to the device, your backstage pass, iykyk
• cpp_id — CPP ID for operation 🦋 the ID that tells the operation where it's going
• address — address for operation 🌸 where the magic happens, lowkey the destination
• value — value to write ⭐ the actual u64 word you're yeeting into that location. precious cargo. protect it 🥺

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🌈 RETURN 🌈

returns 0 on success 🎉 — or -ERRNO if things did not go off 👑 (so, y'know, vibe check your return value, fr fr)

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💜 SEE ALSO 💜

• Kernel file ./drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpplib.c — the source, the origin story, the blueprint 📖
• nfp_cpp_readl(9) — the 32-bit read bestie
• nfp_cpp_writel(9) — the 32-bit write bestie
• nfp_cpp_readq(9) — the 64-bit read bestie (this one's sibling 💫)
• nfp_cpp_map_area(9) — the mapping one, also iconic

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bestie reminder: this manpage comes from ./drivers/net/ethernet/netrono... and the date on it is October 2026 🍓 so if you're reading this from the future, hi, ily, and remember — grab the -ERRNO, don't ignore it 🙈

and that's the whole page, periodt 💅✨🎀