__nfp_eth_set_split(9)

💅 __nfp_eth_set_split(9) 💅

okay so this is a page from the Kernel API Manual — yes the actual kernel API manual, we're in the big leagues now bestie 🎀

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✨ NAME ✨

__nfp_eth_set_split — set interface lane split 🌸

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🦋 SYNOPSIS 🦋

int __nfp_eth_set_split (struct nfp_nsp *nsp , unsigned int lanes );

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💖 ARGUMENTS 💖

• nsp — the NFP NSP handle you got back from nfp_eth_config_start 🫶
• lanes — how many lanes per port you want, bestie ⭐

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👑 DESCRIPTION 👑

Sets the number of lanes in the port. Like, it literally writes to the hwinfo overrides in the flash — so yeah, that's persistent config, meaning it sticks around 😭💀 no takies-backsies.

fr fr, this one touches the flash. Persistent = permanent-ish. Act accordingly 🙈

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🔥 RETURN 🔥

0 or -ERRNO. That's it, that's the whole vibe check 💅

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🌈 SEE ALSO 🌈

Kernel file ./drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c — and the whole friend group:

• nfp_eth_read_ports(9)
• nfp_eth_config_commit_end(9)
• nfp_eth_set_mod_enable(9)
• nfp_eth_set_configured(9)
• __nfp_eth_set_aneg(9)
• __nfp_eth_set_fec(9)
• nfp_eth_set_fec(9)
• __nfp_eth_set_txpause(9)
• __nfp_eth_set_rxpause(9)
• nfp_eth_set_pauseparam(9)
• __nfp_eth_set_speed(9)

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💜 mwah, that's the page! shipped straight out of ./drivers/net/ethernet/netrono... and dated October 2026, and yeah the header says __nfp_eth_set_split(9) top and bottom because the kernel likes symmetry, iconic behavior honestly 👑✨