e1000e_get_bus_info_pcie(9)

💅 e1000e_get_bus_info_pcie(9) — like, the whole Kernel API Manual moment 🎀

okay so bestie, before we even start: this lil page lives in the Kernel API Manual, and honestly? it's giving "small function, big responsibilities." let's get into it ✨

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🌸 NAME 🌸

e1000e_get_bus_info_pcie — get PCIe bus information. that's it. that's the whole name. iconic, lowkey says exactly what it does 🫶

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✨ SYNOPSIS ✨

s32 e1000e_get_bus_info_pcie (struct e1000_hw *hw );

so she takes one (1) pointer and hands you back an s32. no cap, that's the whole signature 💅

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🦋 ARGUMENTS 🦋

• hw — pointer to the HW structure. like, the hardware struct. the main character of the whole e1000e universe 👑

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💖 DESCRIPTION 💖

okay so here's the vibe: this function determines and stores the system bus information for a particular network interface. not me being obsessed with a function that just... figures stuff out and writes it down. but honestly? somebody has to 🌈

the bus information it determines and stores is, and I quote the facts exactly:

• bus speed
• bus width
• type (PCIe)
• PCIe function

that's four (4) whole things, all found out and all stored, by this one function. ate and left no crumbs 🍓

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🔥 SEE ALSO 🔥

bestie. buckle up. this list is LONG and we are NOT skipping a single one of these, because every last one of them is linked from the kernel file ./drivers/net/ethernet/intel/e1000e/mac.c and we respect the whole squad fr fr 💜

• e1000_set_lan_id_multi_port_pcie(9)
• e1000_set_lan_id_single_port(9)
• e1000_clear_vfta_generic(9)
• e1000_write_vfta_generic(9)
• e1000e_init_rx_addrs(9)
• e1000_check_alt_mac_addr_generic(9)
• e1000e_rar_set_generic(9)
• e1000_hash_mc_addr(9)
• e1000e_update_mc_addr_list_generic(9)
• e1000e_clear_hw_cntrs_base(9)
• e1000e_check_for_copper_link(9)
• e1000e_check_for_fiber_link(9)
• e1000e_check_for_serdes_link(9)
• e1000_set_default_fc_generic(9)
• e1000e_setup_link_generic(9)
• e1000_commit_fc_settings_generic(9)
• e1000_poll_fiber_serdes_link_generic(9)
• e1000e_setup_fiber_serdes_link(9)
• e1000e_config_collision_dist_generic(9)
• e1000e_set_fc_watermarks(9)
• e1000e_force_mac_fc(9)
• e1000e_config_fc_after_link_up(9)
• e1000e_get_speed_and_duplex_copper(9)
• e1000e_get_speed_and_duplex_fiber_serdes(9)
• e1000e_get_hw_semaphore(9)
• e1000e_put_hw_semaphore(9)
• e1000e_get_auto_rd_done(9)
• e1000e_valid_led_default(9)
• e1000e_id_led_init_generic(9)
• e1000e_setup_led_generic(9)
• e1000e_cleanup_led_generic(9)
• e1000e_blink_led_generic(9)
• e1000e_led_on_generic(9)
• e1000e_led_off_generic(9)
• e1000e_set_pcie_no_snoop(9)
• e1000e_disable_pcie_master(9)
• e1000e_reset_adaptive(9)
• e1000e_update_adaptive(9)

and yeah — the kernel file it all comes from is ./drivers/net/ethernet/intel/e1000e/mac.c. go read it, iykyk 📖

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quick reminder bestie: that big ol' SEE ALSO list is literally every reference from the original page, one for one. no gatekeeping, no skipping the "boring" ones. we list all 38 or we don't list at all 💀

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🧚 sign-off 🧚

this lil cutie came out of the kernel source at ./drivers/net/ethernet/intel/e..., dated October 2026, and it's filed under e1000e_get_bus_info_pcie(9) in the Kernel API Manual. slay, periodt, drink water, and don't forget to check your bus speed 🌟💅