i40e_alloc_rx_buffers(9)
π i40e_alloc_rx_buffers β Replace used receive buffers
okay so real quick β this is a page from the Kernel API Manual, section 9, and it's all about i40e_alloc_rx_buffers. Yes the name is a mouthful. Yes it slaps anyway. Let's get into it bestie π«Ά
β¨ NAME β¨
i40e_alloc_rx_buffers β Replace used receive buffers π
Like, it restocks the receive side. Buffers get used up, and this function is the one that pops in fresh ones. Maintenance queen behavior. π
πΈ SYNOPSIS πΈ
bool i40e_alloc_rx_buffers (struct i40e_ring *rx_ring , u16 cleaned_count );
π¦ ARGUMENTS π¦
rx_ringβ the ring you're placing buffers on. This is the ring. The main character ring, if you will. πcleaned_countβ the number of buffers you wanna replace. Count 'em, then replace 'em. π’
π DESCRIPTION π
So here's the plot twist, and I need you to pay attention because it's giving plot twist energy fr fr:
- it returns
falseif all the allocations were successful π - it returns
trueif any of them fail π
Yeah. Yeah. The boolean is doing the opposite of what your brain expects. false = good vibes, true = something broke. Not me getting tricked by inverted logic again π just remember it, bestie, it's literally right there in the original and I refuse to let you get caught out.
π₯ SEE ALSO π₯
The kernel file lives at ./drivers/net/ethernet/intel/i40e/i40e_txrx.c β and here's the whole crew, no cap, every single one of them:
i40e_fdir(9)i40e_program_fdir_filter(9)i40e_create_dummy_packet(9)i40e_create_dummy_udp_packet(9)i40e_create_dummy_tcp_packet(9)i40e_create_dummy_sctp_packet(9)i40e_prepare_fdir_filter(9)i40e_change_filter_num(9)i40e_add_del_fdir_udp(9)i40e_add_del_fdir_tcp(9)i40e_add_del_fdir_sctp(9)i40e_add_del_fdir_ip(9)i40e_add_del_fdir(9)i40e_fd_handle_status(9)i40e_unmap_and_free_tx_resource(9)i40e_clean_tx_ring(9)i40e_free_tx_resources(9)i40e_get_tx_pending(9)i40e_detect_recover_hung(9)i40e_clean_tx_irq(9)i40e_enable_wb_on_itr(9)i40e_force_wb(9)i40e_update_itr(9)i40e_reuse_rx_page(9)i40e_clean_programming_status(9)i40e_setup_tx_descriptors(9)i40e_clean_rx_ring(9)i40e_free_rx_resources(9)i40e_setup_rx_descriptors(9)i40e_release_rx_desc(9)i40e_alloc_mapped_page(9)i40e_rx_checksum(9)i40e_rx_hash(9)i40e_process_skb_fields(9)i40e_cleanup_headers(9)i40e_can_reuse_rx_page(9)i40e_rx_buffer_flip(9)i40e_get_rx_buffer(9)i40e_put_rx_buffer(9)i40e_process_rx_buffs(9)i40e_construct_skb(9)i40e_build_skb(9)i40e_is_non_eop(9)i40e_run_xdp(9)i40e_xdp_ring_update_tail(9)i40e_update_rx_stats(9)i40e_finalize_xdp_rx(9)i40e_inc_ntp(9)i40e_add_xdp_frag(9)i40e_consume_xdp_buff(9)i40e_clean_rx_irq(9)i40e_buildreg_itr(9)i40e_update_enable_itr(9)i40e_napi_poll(9)i40e_atr(9)i40e_tx_prepare_vlan_flags(9)i40e_tso(9)i40e_tsyn(9)i40e_tx_enable_csum(9)i40e_create_tx_ctx(9)__i40e_maybe_stop_tx(9)__i40e_chk_linearize(9)i40e_tx_map(9)i40e_xmit_xdp_ring(9)i40e_xmit_frame_ring(9)i40e_lan_xmit_frame(9)i40e_xdp_xmit(9)
and that's the whole page, bestie π go replace those buffers, remember the inverted bool, and stan a receive ring that stays fed πβ¨
this has been i40e_alloc_rx_buffers(9) from ./drivers/net/ethernet/intel/i40e, Kernel API Manual, dated October 2026 β mwah, ily, bye ππ
π¦
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms