axienet_change_mtu(9)

💅 axienet_change_mtu(9) — like, the MTU glow-up routine

okay so bestie, welcome to the Kernel API Manual ✨ — this is the page for axienet_change_mtu, and honestly? it's short, it's sweet, it does exactly one job and it does it flawlessly. main character energy fr fr 🎀

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🌸 NAME 🌸

axienet_change_mtu — the driver's change-MTU routine. that's it. that's the whole vibe. 💖

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✨ SYNOPSIS ✨

int axienet_change_mtu (struct net_device *ndev , int new_mtu );

like, you hand it a device and a number and it just... handles it. no drama. 🦋

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🫶 ARGUMENTS 🫶

• ndev — a pointer to the net_device structure. yes, that one. the one we've all been texting. 💅
• new_mtu — the brand-new MTU value you want applied. the whole reason you knocked on the door, ngl.

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👑 RETURN 👑

always returns 0 (success). no cap. every single time. it's giving "i don't miss" — 🌈⭐

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💀 DESCRIPTION 💀

so this is the change-MTU driver routine. here's the tea: it checks whether the Axi Ethernet hardware actually supports jumbo frames before it goes and changes the MTU. no vibes-based MTU changes here, we verify first. 🙈

⚠️ lowkey important: this can be called only when the device is not up. like, device-down only. do not @ me if you ignore this. 😭

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🔥 SEE ALSO 🔥

kernel file: ./drivers/net/ethernet/xilinx/xilinx_axienet_main.c

and the whole friend group, in order because we're respectful like that:

• axienet_dma_in32(9)
• axienet_dma_bd_release(9)
• axienet_calc_cr(9)
• axienet_coalesce_params(9)
• axienet_dma_start(9)
• axienet_dma_bd_init(9)
• axienet_set_mac_address(9)
• netdev_set_mac_address(9)
• axienet_set_multicast_list(9)
• axienet_setoptions(9)
• axienet_dma_stop(9)
• axienet_device_reset(9)
• axienet_free_tx_chain(9)
• axienet_check_tx_bd_space(9)
• axienet_dma_tx_cb(9)
• axienet_start_xmit_dmaengine(9)
• axienet_tx_poll(9)
• axienet_start_xmit(9)
• axienet_dma_rx_cb(9)
• axienet_rx_poll(9)
• axienet_tx_irq(9)
• axienet_rx_irq(9)
• axienet_eth_irq(9)
• axienet_rx_submit_desc(9)
• axienet_init_dmaengine(9)
• axienet_init_legacy_dma(9)
• axienet_open(9)
• axienet_stop(9)
• axienet_poll_controller(9)
• axienet_ethtools_get_drvinfo(9)
• axienet_ethtools_get_regs_len(9)
• axienet_ethtools_get_regs(9)
• axienet_ethtools_get_pauseparam(9)
• axienet_ethtools_set_pauseparam(9)
• axienet_update_coalesce_rx(9)
• axienet_dim_coalesce_count_rx(9)
• axienet_rx_dim_work(9)
• axienet_update_coalesce_tx(9)
• axienet_ethtools_get_coalesce(9)
• axienet_ethtools_set_coalesce(9)
• axienet_dma_err_handler(9)
• axienet_probe(9)

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k bye bestie, go change that MTU responsibly 🧚💜 — this page came from the source path ./drivers/net/ethernet/xilinx, dated October 2026, and yes that's the whole signature, mwah 💋