fm10k_open(9)

💖 fm10k_open(9) 💖

okay so bestie, welcome to the fm10k_open(9) page — this is the Kernel API Manual entry for the Intel fm10k driver's open hook, and honestly? it's kind of the main character of interface bring-up. let's get into it 🫶

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✨ SYNOPSIS ✨

int fm10k_open (struct net_device *netdev );

like, that's the whole signature. simple. elegant. iconic. 💅

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🎀 ARGUMENTS 🎀

• netdev — the network interface device structure 🦋 (yes, that one, the struct you've been staring at all day)

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🌸 DESCRIPTION 🌸

so the return vibe check first, because it matters:

Returns 0 on success, negative value on failure. that's it, that's the rule. no cap. ✨

now the fun part — the open entry point is called when a network interface is made active by the system, and the flag in question is IFF_UP 👑

lowkey this is the glow-up moment for the whole interface. at this point, all the resources needed for transmit and receive operations get allocated, the interrupt handler gets registered with the OS, the watchdog timer is started, and the stack is notified that the interface is ready 🔥

so like, in order, the whole checklist:

• all resources needed for transmit and receive operations → allocated ✅
• the interrupt handler → registered with the OS ✅
• the watchdog timer → started ✅
• the stack → notified that the interface is ready ✅

that's a lot of work for one function call, and she ate. periodt. 💀🎀

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🦋 SEE ALSO 🦋

the friends and neighbors, aka the entire fm10k support squad 🧚💜

• Kernel file ./drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
• 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_udp_tunnel_sync(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 okay, read the whole set. iykyk 🌈

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💡 friendly reminder bestie: this page is literally just about the open entry point — it doesn't cover the details of how each of those allocations happen, so go read the linked functions if you want the tea ☕

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and that's the page!! ty for reading, mwah 💋 — this lil gem lives in the Kernel API Manual (you saw fm10k_open(9) up top, that's her full name 🎀), sourced from ./drivers/net/ethernet/intel/f..., dated October 2026, and it says fm10k_open(9) on the way out too. slay, bye 👑💖