fm10k_udp_tunnel_sync(9)

💅 fm10k_udp_tunnel_sync(9) — like, the whole manual page, bestie

okay so this is fm10k_udp_tunnel_sync, straight outta the Kernel API Manual. yes queen, it's a kernel function page and we're gonna get through it together 🫶

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✨ NAME ✨

fm10k_udp_tunnel_sync — called when UDP tunnel ports change 🌀

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🦋 SYNOPSIS 🦋

int fm10k_udp_tunnel_sync (struct net_device *dev , unsigned int table
);

like, it returns an int, it takes a struct net_device *dev, and it takes an unsigned int table. that's the whole vibe. no cap 💅

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🎀 ARGUMENTS 🎀

• dev — the network interface device structure, aka the whole entire network-device moment 🌸
• table — the tunnel table, and it's according to tables of fm10k_udp_tunnels, so like… look there for the lore, iykyk 🔥

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💖 DESCRIPTION 💖

so this function gets called when a new UDP tunnel port is added or deleted. that's the trigger. that's the whole reason it exists. ✨

now here's the part where you gotta pay attention, bestie, because of hardware restrictions 😭 — only one port per type can be offloaded at once. one. per. type. that's it. that's the limit. hardware said "no ❤️" and we respect it.

and because of that, the core will send to the driver a port of its choice. not yours. not mine. the core's. main character energy fr fr 👑

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🌈 SEE ALSO 🌈

the kernel file lives at ./drivers/net/ethernet/intel/fm10k/fm10k_netdev.c — go read it if you're feeling brave 🧚

and here's the whole friend group, everyone show some love:

• fm10k_setup_tx_resources(9)
• fm10k_setup_all_tx_resources(9)
• fm10k_setup_rx_resources(9)
• fm10k_setup_all_rx_resources(9)
• fm10k_clean_tx_ring(9)
• fm10k_free_tx_resources(9)
• fm10k_clean_all_tx_rings(9)
• fm10k_free_all_tx_resources(9)
• fm10k_clean_rx_ring(9)
• fm10k_free_rx_resources(9)
• fm10k_clean_all_rx_rings(9)
• fm10k_free_all_rx_resources(9)
• fm10k_request_glort_range(9)
• fm10k_restore_udp_port_info(9)
• fm10k_open(9)
• fm10k_close(9)
• fm10k_tx_timeout(9)
• fm10k_host_mbx_ready(9)
• fm10k_queue_vlan_request(9)
• fm10k_queue_mac_request(9)
• fm10k_clear_macvlan_queue(9)
• fm10k_get_stats64(9)

like, twenty-two whole friends. iconic. ate and left no crumbs 🍓

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ngl the source line got truncated to ./drivers/net/ethernet/intel/f... in the original, so that's exactly what we're keeping. no editing, no guessing, periodt 💀

aaaand scene 💜 this little page is from October 2026, out of the ./drivers/net/ethernet/intel/f... source and version line, in the Kernel API Manual — mwah, slay, bye bestie 😘💅