fm10k_crc_16b(9)

💖 fm10k_crc_16b(9) — Kernel API Manual, but make it make sense 💖

okay so welcome to the fm10k_crc_16b(9) page bestie 🌸 this is the Kernel API Manual entry for one (1) tiny little CRC machine and honestly it's giving "small but mighty" ✨

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✨ NAME ✨

fm10k_crc_16b — Generate a 16 bit CRC for a region of 16 bit data 🎀

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🌈 SYNOPSIS 🌈

u16 fm10k_crc_16b (const u32 *data , u16 seed , u16 len );

like... that's the whole vibe, she takes three things and hands you back a u16, periodt 💅

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🦋 ARGUMENTS 🦋

• data — pointer to data to process. that's your little pile of bytes, she's gonna chew on it 🍓
• seed — seed value for CRC. yes it matters, do not skip her 🙈
• len — length measured in 16 bits words. note the unit bestie, 16 bit words, not bytes, not vibes 👑

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🔥 DESCRIPTION 🔥

so this function will generate a CRC based on the polynomial 0xAC9A and whatever value is stored in the seed variable 🧚

⚠️ okay important note, no cap: this value inverts the local seed and the result in order to capture all leading and trailing zeros. so the inversion is literally the whole point, it's not a bug, it's the plot 🙈

that's it, that's the function, she's iconic and she does exactly one thing 💜

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💀 SEE ALSO 💀

the kernel file on deck: ./drivers/net/ethernet/intel/fm10k/fm10k_mbx.c 📁

and here's the whole extended friend group, all 66 of them, no gatekeeping 🫶

• fm10k_fifo_init(9)
• fm10k_fifo_used(9)
• fm10k_fifo_unused(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_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)

like yeah, that's a whole group chat in there, but they're all invited 🎀

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💅 and that's the page!! source-of-truth vibes: this came from ./drivers/net/ethernet/intel/f... (that's the truncated source the footer showed, iykyk 😭) and the version stamp is October 2026. mwah, go write some CRCs bestie 💖✨🦋