__nfp_net_reconfig(9)

💖 __nfp_net_reconfig (9) — the Kernel API Manual girlies' edition 🎀

okay so bestie, gather round, because this lil function from the Kernel API Manual is literally the "hey firmware, wake up, we're changing stuff" button and I need you to understand her 💅

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✨ NAME ✨

__nfp_net_reconfig — Reconfigure the firmware 🌸

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✨ SYNOPSIS ✨

int __nfp_net_reconfig (struct nfp_net *nn , u32 update );

like, that's the whole signature. she's small but she's doing the most 🫶

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✨ ARGUMENTS ✨

• nn — the NFP Net device you're reconfiguring, the main character of this operation 👑
• update — the value that goes into the update field in the BAR config, periodt 💅

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✨ DESCRIPTION ✨

so here's the vibe: she writes the update word to the BAR and pings the reconfig queue 🔥 then she polls until the firmware has acknowledged the update by zeroing the update word. like she's not leaving until firmware texts back, fr fr 😭 no cap, that's the whole flow.

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✨ RETURN ✨ ✨

Negative errno on error, 0 on success 🌈 (yes bestie, that's the entire return contract, iconic)

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✨ SEE ALSO ✨

• Kernel file ./drivers/net/ethernet/netronome/nfp/nfp_net_common.c
• nfp_net_get_fw_version(9), nfp_net_reconfig_post(9), nfp_net_mbox_reconfig(9), nfp_net_irqs_alloc(9), nfp_net_irqs_assign(9), nfp_net_irqs_disable(9), nfp_net_irq_rxtx(9), nfp_net_read_link_status(9), nfp_net_irq_lsc(9), nfp_net_irq_exn(9), nfp_net_aux_irq_request(9), nfp_net_aux_irq_free(9), nfp_net_vecs_init(9), nfp_net_rss_write_itbl(9), nfp_net_rss_write_key(9), nfp_net_coalesce_write_cfg(9), nfp_net_write_mac_addr(9), nfp_net_clear_config_and_disable(9), nfp_net_set_config_and_enable(9), nfp_net_close_stack(9), nfp_net_close_free_all(9), nfp_net_netdev_close(9), nfp_net_open_stack(9), nfp_net_info(9), nfp_net_alloc(9), nfp_net_free(9), nfp_net_rss_key_sz(9), nfp_net_rss_init(9), nfp_net_irqmod_init(9), nfp_net_init(9), nfp_net_clean(9)

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🦋 friendly reminder: update goes straight into the BAR config update field, so pass the value you actually mean — she's not out here guessing for you 💀

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and that's the page, bestie!! mwah 💖 this lil cutie comes from ./drivers/net/ethernet/netrono... and she was stamped October 2026 — __nfp_net_reconfig(9) out here serving kernel realness in the group chat, slay 🎀✨👑