__nfp_eth_set_speed(9)

💅 NAME 💅

__nfp_eth_set_speed — set interface speed/rate, bestie. like literally telling the NIC how fast to go ✨

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🦋 SYNOPSIS 🦋

int __nfp_eth_set_speed (struct nfp_nsp *nsp , unsigned int speed );

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🎀 ARGUMENTS 🎀

• nsp — the NFP NSP handle, and no you can't just make one up, it's the one you got back from nfp_eth_config_start 🫶
• speed — the desired speed, per lane (per lane!! don't forget the per lane part, it's giving crucial 💀)

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🌸 DESCRIPTION 🌸

Okay so this one sets the lane speed. periodt.

The speed value you pass in should be the subport speed divided by the number of lanes this subport is spanning — so like 10000 for 40G, 25000 for 50G, etc. do the math bestie, it's not that deep but it is that deep 🧮✨

Also important: this writes to the hwinfo overrides in the flash, which is persistent config. so yeah, it sticks around after you leave. main character energy honestly 👑

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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 — go read it, iykyk 🦋
• 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_split(9)

the whole friend group fr fr 🫶

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okay that's the page!! this lil number lives in the Kernel API Manual, comes to you from ./drivers/net/ethernet/netrono... (yes it's truncated, that's just how the footer rolls 🙈), dated October 2026, and it's filed under __nfp_eth_set_speed(9) — slay, go set some speeds bestie 💖✨🎀