igb_alloc_q_vector(9)

💖 NAME 💖

igb_alloc_q_vector — allocate memory for a single interrupt vector.

Okay bestie, welcome to the igb_alloc_q_vector(9) page from the Kernel API Manual. This is the whole vibe: one function, one q_vector, and the friend group of igb functions in SEE ALSO. 🫶

✨ SYNOPSIS ✨

int igb_alloc_q_vector (struct igb_adapter *adapter , int v_count , int v_idx , int txr_count , int txr_idx , int rxr_count , int rxr_idx );

🫶 ARGUMENTS 🫶

• adapter — the board private structure you're initializing, like the main character of this setup.
• v_count — the q_vectors allocated on adapter; used for ring interleaving. iykyk.
• v_idx — the index of this vector in the adapter struct.
• txr_count — total number of Tx rings to allocate.
• txr_idx — index of the first Tx ring to allocate.
• rxr_count — total number of Rx rings to allocate.
• rxr_idx — index of the first Rx ring to allocate.

💅 DESCRIPTION 💅

Okay so here's the tea: we allocate one q_vector. If that allocation fails, we return -ENOMEM — periodt. 😭

🌈 SEE ALSO 🌈

The entire igb friend group is in the chat, literally:

Kernel file ./drivers/net/ethernet/intel/igb/igb_main.c
igb_get_i2c_data(9), igb_set_i2c_data(9), igb_set_i2c_clk(9),
igb_get_i2c_clk(9), igb_get_hw_dev(9), igb_init_module(9),
igb_exit_module(9), igb_cache_ring_register(9), igb_write_ivar(9),
igb_configure_msix(9), igb_request_msix(9), igb_free_q_vector(9),
igb_reset_q_vector(9), igb_free_q_vectors(9),
igb_clear_interrupt_scheme(9), igb_set_interrupt_capability(9),
igb_alloc_q_vectors(9), igb_init_interrupt_scheme(9),
igb_request_irq(9), igb_irq_disable(9), igb_irq_enable(9),
igb_release_hw_control(9), igb_get_hw_control(9),
igb_config_tx_modes(9), igb_setup_tx_mode(9), igb_configure(9),
igb_power_up_link(9), igb_power_down_link(9), igb_check_swap_media(9),
igb_up(9), igb_set_i2c_bb(9), igb_set_fw_version(9), igb_init_mas(9),
igb_init_i2c(9), igb_probe(9), igb_remove_i2c(9), igb_remove(9),
igb_probe_vfs(9), igb_sw_init(9), __igb_open(9), __igb_close(9),
igb_setup_tx_resources(9), igb_setup_all_tx_resources(9),
igb_setup_tctl(9), igb_configure_tx_ring(9), igb_configure_tx(9),
igb_setup_rx_resources(9), igb_setup_all_rx_resources(9),
igb_setup_mrqc(9), igb_setup_rctl(9), igb_setup_srrctl(9),
igb_configure_rx_ring(9), igb_configure_rx(9), igb_free_tx_resources(9),
igb_free_all_tx_resources(9), igb_clean_tx_ring(9),
igb_clean_all_tx_rings(9), igb_free_rx_resources(9),
igb_free_all_rx_resources(9), igb_clean_rx_ring(9),
igb_clean_all_rx_rings(9), igb_set_mac(9), igb_write_mc_addr_list(9),
igb_set_rx_mode(9), igb_has_link(9), igb_check_lvmmc(9),
igb_watchdog(9), igb_update_ring_itr(9), igb_update_itr(9),
igb_tx_timeout(9), igb_get_stats64(9), igb_change_mtu(9),
igb_update_stats(9), igb_set_uta(9), igb_intr_msi(9), igb_intr(9),
igb_poll(9), igb_clean_tx_irq(9), igb_reuse_rx_page(9),
igb_add_rx_frag(9), igb_is_non_eop(9), igb_cleanup_headers(9),
igb_process_skb_fields(9), igb_alloc_rx_buffers(9), igb_mii_ioctl(9),
igb_ioctl(9), igb_io_error_detected(9), igb_io_slot_reset(9),
igb_io_resume(9), igb_rar_set_index(9), igb_read_i2c_byte(9),
igb_write_i2c_byte(9)

Later bestie — this cutie came from the source/version at ./drivers/net/ethernet/intel/igb, dated October 2026, and yes, it's the igb_alloc_q_vector(9) manual page. 💅💖✨