fm10k_fifo_empty(9)

📦 version 7.3.1, in nixpkgs unstable

💅 fm10k_fifo_empty — bestie's guide to checking an empty FIFO ✨

okay so this is a page from the Kernel API Manual, and it's about fm10k_fifo_empty — the tiny little legend that tells you whether a FIFO is empty or not. no cap, it's one job and it does it. 🎀

🌸 NAME 🌸

fm10k_fifo_empty — the test to verify if a FIFO is empty 💖

✨ SYNOPSIS ✨

bool fm10k_fifo_empty (struct fm10k_mbx_fifo *fifo );

🫶 ARGUMENTS 🫶

  • fifo — a pointer to the FIFO. that's it, that's the whole argument. she just needs the pointer, she's low maintenance 💅

🔥 DESCRIPTION 🔥

okay so here's the tea: this function returns true if the FIFO is empty, else false. and that's literally the entire vibe check. 👑

like, no side quests, no surprises, no hidden lore. you hand her a struct fm10k_mbx_fifo * and she looks at it and tells you: empty or not empty. iconic behaviour, honestly. ngl, sometimes the most useful functions are the ones with main character energy and zero drama. 💀

🦋 SEE ALSO 🦋

this is the part where the manpage just lists, like, everyone in the group chat. every one of these is a real buddy of hers — go say hi 🫶

  • Kernel file ./drivers/net/ethernet/intel/fm10k/fm10k_mbx.c

and the whole crew:

fm10k_fifo_init(9), fm10k_fifo_used(9), fm10k_fifo_unused(9), fm10k_fifo_head_offset(9), fm10k_fifo_tail_offset(9), fm10k_fifo_head_len(9), fm10k_fifo_head_drop(9), fm10k_fifo_drop_all(9), fm10k_mbx_index_len(9), fm10k_mbx_tail_add(9), fm10k_mbx_tail_sub(9), fm10k_mbx_head_add(9), fm10k_mbx_head_sub(9), fm10k_mbx_pushed_tail_len(9), fm10k_fifo_write_copy(9), fm10k_fifo_enqueue(9), fm10k_mbx_validate_msg_size(9), fm10k_mbx_write_copy(9), fm10k_mbx_pull_head(9), fm10k_mbx_read_copy(9), fm10k_mbx_push_tail(9), fm10k_crc_16b(9), fm10k_fifo_crc(9), fm10k_mbx_update_local_crc(9), fm10k_mbx_verify_remote_crc(9), fm10k_mbx_rx_ready(9), fm10k_mbx_tx_ready(9), fm10k_mbx_tx_complete(9), fm10k_mbx_dequeue_rx(9), fm10k_mbx_enqueue_tx(9), fm10k_mbx_read(9), fm10k_mbx_write(9), fm10k_mbx_create_connect_hdr(9), fm10k_mbx_create_data_hdr(9), fm10k_mbx_create_disconnect_hdr(9), fm10k_mbx_create_fake_disconnect_hdr(9), fm10k_mbx_create_error_msg(9), fm10k_mbx_validate_msg_hdr(9), fm10k_mbx_create_reply(9), fm10k_mbx_reset_work(9), fm10k_mbx_update_max_size(9), fm10k_mbx_connect_reset(9), fm10k_mbx_process_connect(9), fm10k_mbx_process_data(9), fm10k_mbx_process_disconnect(9), fm10k_mbx_process_error(9), fm10k_mbx_process(9), fm10k_mbx_disconnect(9), fm10k_mbx_connect(9), fm10k_mbx_validate_handlers(9), fm10k_mbx_register_handlers(9), fm10k_pfvf_mbx_init(9), fm10k_sm_mbx_create_data_hdr(9), fm10k_sm_mbx_create_connect_hdr(9), fm10k_sm_mbx_connect_reset(9), fm10k_sm_mbx_connect(9), fm10k_sm_mbx_disconnect(9), fm10k_sm_mbx_validate_fifo_hdr(9), fm10k_sm_mbx_process_error(9), fm10k_sm_mbx_create_error_msg(9), fm10k_sm_mbx_receive(9), fm10k_sm_mbx_transmit(9), fm10k_sm_mbx_create_reply(9), fm10k_sm_mbx_process_reset(9), fm10k_sm_mbx_process_version_1(9), fm10k_sm_mbx_process(9), fm10k_sm_mbx_init(9)

💡 reminder bestie: the answer is literally just true or false. no in-between, no "it's complicated", no situationship. 🌈

and that's the page!! 🌸 source/version line situation: it's from ./drivers/net/ethernet/intel/f... and it's dated October 2026 — so mark your calendar, she's a fall release kind of girl 🍓💜 mwah, go check some FIFOs, ily, bye 🧚✨

📦 where this page comes from