bdx_change_mtu(9)

💅 bdx_change_mtu — Kernel API Manual, section 9 💅

okay so bestie, this is the bdx_change_mtu page from the Kernel API Manual — section 9, kernel API, periodt. it’s giving “tiny function, very important job.” let’s get into it 🦋

✨ NAME ✨

bdx_change_mtu — Change the Maximum Transfer Unit. literally what it says on the tin, no cap 💖

🌸 SYNOPSIS 🌸

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

🎀 ARGUMENTS 🎀

• ndev — the network interface device structure, aka the NIC’s whole main character energy 💅
• new_mtu — the new value for maximum frame size, aka the fresh MTU bestie 🎀

💖 DESCRIPTION 💖

Returns 0 on success, negative on failure. that’s the vibe check: 0 is the slay, negative is the “bestie no 😭” — fr fr.

bestie note: success = 0, failure = negative. iconic and simple 🫶

🌈 SEE ALSO 🌈

the kernel file is ./drivers/net/ethernet/tehuti/tehuti.c, and the linked crew is:

• bdx_fifo_init(9)
• bdx_fifo_free(9)
• bdx_link_changed(9)
• bdx_isr_napi(9)
• bdx_fw_load(9)
• bdx_hw_start(9)
• bdx_close(9)
• bdx_open(9)
• __bdx_vlan_rx_vid(9)
• bdx_vlan_rx_add_vid(9)
• bdx_vlan_rx_kill_vid(9)
• bdx_rx_init(9)
• bdx_rx_free_skbs(9)
• bdx_rx_free(9)
• bdx_rx_alloc_skbs(9)
• bdx_rx_receive(9)
• __bdx_tx_db_ptr_next(9)
• bdx_tx_db_inc_rptr(9)
• bdx_tx_db_inc_wptr(9)
• bdx_tx_db_init(9)
• bdx_tx_db_close(9)
• bdx_tx_map_skb(9)
• bdx_tx_space(9)
• bdx_tx_transmit(9)
• bdx_tx_cleanup(9)
• bdx_tx_free_skbs(9)
• bdx_tx_push_desc(9)
• bdx_tx_push_desc_safe(9)
• bdx_probe(9)
• bdx_remove(9)

mwah 💋 source/version check: the footer points at ./drivers/net/ethernet/tehuti, dated October 2026, and this page is bdx_change_mtu(9) — periodt 🌟