e1000_init_hw_struct(9)

💅 e1000_init_hw_struct(9) — like, the kernel API manual, but make it make sense

okay so bestie, welcome to e1000_init_hw_struct(9) from the Kernel API Manual ✨ section 9, dev-kernel girlies rise up 🫶 this is the one that gets the e1000 hw struct all cute and set up before anything else happens.

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🌸 NAME 🌸

e1000_init_hw_struct — literally initializes the members of the hw struct 💖

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✨ SYNOPSIS ✨

int e1000_init_hw_struct (struct e1000_adapter *adapter , struct
       e1000_hw *hw );

like yeah, two args, one int return, that's the whole vibe 🎀

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🎯 ARGUMENTS 🎯

• adapter — the board private struct, she's the main character holding all the board-specific lore 👑
• hw — the structure that e1000_hw.c uses, iykyk 💅

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🦋 DESCRIPTION 🦋

so the whole point of this function is that it factors out the initialization of the e1000_hw struct into its very own function, which means you can call it super duper early at init time — like, right after the struct allocation, before the struct has even picked out an outfit 💀

the fields get initialized based on PCI device information and on OS network device settings (that's the MTU size, bestie, not the makeup setting 😭).

and if the MAC type setup fails? it returns negative error codes. not zero, not happy, negative. so like… check your return value fr fr 🙈

no cap: if MAC type setup goes sideways, this thing comes back with a negative error code. handle it, don't ignore it, periodt.

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🔥 SEE ALSO 🔥

the kernel file in question is ./drivers/net/ethernet/intel/e1000/e1000_main.c — go read the source, it's giving lore drop 📖

and here's the whole friend group, everyone's invited, all (9) girlies 🎀:

• e1000_get_hw_dev(9)
• e1000_init_module(9)
• e1000_exit_module(9)
• e1000_irq_disable(9)
• e1000_irq_enable(9)
• e1000_configure(9)
• e1000_power_up_phy(9)
• e1000_is_need_ioport(9)
• e1000_probe(9)
• e1000_remove(9)
• e1000_sw_init(9)
• e1000_alloc_queues(9)
• e1000_open(9)
• e1000_close(9)
• e1000_check_64k_bound(9)
• e1000_setup_tx_resources(9)
• e1000_setup_all_tx_resources(9)
• e1000_configure_tx(9)
• e1000_setup_rx_resources(9)
• e1000_setup_all_rx_resources(9)
• e1000_setup_rctl(9)
• e1000_configure_rx(9)
• e1000_free_tx_resources(9)
• e1000_free_all_tx_resources(9)
• e1000_clean_tx_ring(9)
• e1000_clean_all_tx_rings(9)
• e1000_free_rx_resources(9)
• e1000_free_all_rx_resources(9)
• e1000_clean_rx_ring(9)
• e1000_clean_all_rx_rings(9)
• e1000_set_mac(9)
• e1000_set_rx_mode(9)
• e1000_update_phy_info_task(9)
• e1000_82547_tx_fifo_stall_task(9)
• e1000_watchdog(9)
• e1000_update_itr(9)
• e1000_tx_timeout(9)
• e1000_change_mtu(9)
• e1000_update_stats(9)
• e1000_intr(9)
• e1000_clean(9)
• e1000_clean_tx_irq(9)
• e1000_rx_checksum(9)
• e1000_consume_page(9)
• e1000_receive_skb(9)
• e1000_tbi_adjust_stats(9)
• e1000_clean_jumbo_rx_irq(9)
• e1000_clean_rx_irq(9)
• e1000_alloc_jumbo_rx_buffers(9)
• e1000_alloc_rx_buffers(9)
• e1000_smartspeed(9)
• e1000_ioctl(9)
• e1000_mii_ioctl(9)
• e1000_io_error_detected(9)
• e1000_io_slot_reset(9)
• e1000_io_resume(9)

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💖 and that's the page, bestie! 💖

cute little sign-off before you go: the footer says the source path is ./drivers/net/ethernet/intel/e... (yes it's literally truncated like that in the footer, iconique 💀), dated October 2026, and the page is e1000_init_hw_struct(9). slay, go init that hw struct 🌈🦋