fm10k_fifo_unused(9)

💖 NAME 💖

fm10k_fifo_unused — Retrieve unused space in FIFO. This is the fm10k_fifo_unused(9) page from the Kernel API Manual, and bestie, it is short, sweet, and here to check the FIFO’s unused-space vibe. 🫶

✨ SYNOPSIS ✨

u16 fm10k_fifo_unused (struct fm10k_mbx_fifo *fifo );

🎀 ARGUMENTS 🎀

• fifo — pointer to FIFO. That’s the whole argument, bestie: hand over the FIFO pointer and let the function do its thing. 💅

💅 DESCRIPTION 💅

Okay so literally, this function returns the number of unused DWORDs in the FIFO. That’s the tea. ☕️ It’s giving “space check” energy, no cap — the return type is u16, and the whole point is counting those unused DWORDs in the FIFO. 🌸

🦋 SEE ALSO 🦋

Kernel file: ./drivers/net/ethernet/intel/fm10k/fm10k_mbx.c — yes, exact path, bestie. 💾

Then the whole friend group of related pages, all still (9) and all important:

• fm10k_fifo_init(9), fm10k_fifo_used(9), fm10k_fifo_empty(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)

mwah 💋 — this page’s footer/source-version line says ./drivers/net/ethernet/intel/f... and the date is October 2026, so fm10k_fifo_unused(9) is signing off. Stay slay, bestie! 🫶✨