igc_setup_mrqc(9)

✨ igc_setup_mrqc — the igc_setup_mrqc(9) glow-up 💅

okay so we're in the Kernel API Manual today bestie, and the star of the show is igc_setup_mrqc(9) — the little function that handles the multiple receive queue control registers. yes it's a mouthful, no we're not changing the name, it's iconic as is 🎀

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🌸 NAME 🌸

igc_setup_mrqc — configure the multiple receive queue control registers

like, it literally sets up the MRQC registers. that's the whole vibe. no cap.

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🦋 SYNOPSIS 🦋

void igc_setup_mrqc (struct igc_adapter *adapter );

returns void, takes one pointer, does its little register dance and dips. main character energy fr fr ✨

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🎀 ARGUMENTS 🎀

• adapter — the Board private structure. that's it. that's the one (1) argument. she's low maintenance, we love that for her 🫶

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💖 SEE ALSO 💖

okay this is the part where the page absolutely SPILLS the tea — there are SO many cross-references and honestly every single one of them ate. grab a snack, here we go:

the source file itself, obviously:

• the kernel file ./drivers/net/ethernet/intel/igc/igc_main.c — go read it, it's giving lore 👑

link + hw control besties:

• igc_power_up_link(9), igc_release_hw_control(9), igc_get_hw_control(9)

tx ring cleanup crew (they keep it tidy):

• igc_clean_tx_ring(9), igc_free_tx_resources(9), igc_free_all_tx_resources(9), igc_clean_all_tx_rings(9), igc_disable_all_tx_rings_hw(9), igc_setup_tx_resources(9), igc_setup_all_tx_resources(9)

rx ring cleanup crew (equally tidy, equally beloved):

• igc_clean_rx_ring(9), igc_clean_all_rx_rings(9), igc_free_rx_resources(9), igc_free_all_rx_resources(9), igc_setup_rx_resources(9), igc_setup_all_rx_resources(9)

configure era (rings and control registers):

• igc_configure_rx_ring(9), igc_configure_rx(9), igc_configure_tx_ring(9), igc_configure_tx(9), igc_setup_rctl(9), igc_setup_tctl(9)

mac filter + multicast address stuff:

• igc_set_mac_filter_hw(9), igc_clear_mac_filter_hw(9), igc_set_mac(9), igc_write_mc_addr_list(9)

rx processing pipeline (where the packets get their moment):

• igc_process_skb_fields(9), igc_add_rx_frag(9), igc_reuse_rx_page(9), igc_is_non_eop(9), igc_cleanup_headers(9), igc_alloc_rx_buffers(9), igc_clean_tx_irq(9)

filter management, both adding and deleting, because balance:

• igc_add_mac_filter(9), igc_del_mac_filter(9), igc_add_vlan_prio_filter(9), igc_del_vlan_prio_filter(9), igc_add_etype_filter(9), igc_del_etype_filter(9), igc_get_nfc_rule(9), igc_del_nfc_rule(9), igc_add_nfc_rule(9), igc_enable_empty_addr_recv(9), igc_set_rx_mode(9), igc_configure(9)

interrupts, vectors and itr — the whole msix cinematic universe:

• igc_write_ivar(9), igc_configure_msix(9), igc_irq_enable(9), igc_irq_disable(9), igc_reset_q_vector(9), igc_free_q_vector(9), igc_free_q_vectors(9), igc_update_itr(9), igc_set_interrupt_capability(9), igc_update_ring_itr(9), igc_cache_ring_register(9), igc_poll(9), igc_alloc_q_vector(9), igc_alloc_q_vectors(9), igc_init_interrupt_scheme(9)

lifecycle, stats, open/close, error handling — the full character arc:

• igc_sw_init(9), igc_up(9), igc_update_stats(9), igc_down(9), igc_change_mtu(9), igc_tx_timeout(9), igc_get_stats64(9), igc_msix_other(9), igc_request_msix(9), igc_clear_interrupt_scheme(9), igc_has_link(9), igc_watchdog(9), igc_intr_msi(9), igc_intr(9), igc_request_irq(9), __igc_open(9), __igc_close(9), igc_probe(9), igc_remove(9), igc_io_error_detected(9), igc_io_slot_reset(9), igc_io_resume(9), igc_reinit_queues(9), igc_get_hw_dev(9), igc_init_module(9), igc_exit_module(9)

bestie that's the entire friend group. every single one linked, none skipped, that's the rule 💀

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and that's the page! no warnings, no bugs section, no environment variables — she's short and sweet and we respect her for it 🌈

sign-off time 💜: this little beauty lives in the source tree at ./drivers/net/ethernet/intel/igc, and it's stamped October 2026. go forth, configure those multiple receive queue control registers, and slay 🎀✨👑