iavf_send_phc_read(9)

💖 iavf_send_phc_read(9) 💖

okay so bestie, this is a page from the Kernel API Manual, and we're talking about iavf_send_phc_read(9) — a little function that asks for the PTP hardware clock time. slay.

✨ NAME ✨

iavf_send_phc_read — Send request to read PHC time.

🦋 SYNOPSIS 🦋

int iavf_send_phc_read (struct iavf_adapter *adapter );

🎀 ARGUMENTS 🎀

• adapter — the private adapter structure. that's the one and only argument, bestie.

🌸 DESCRIPTION 🌸

okay so what this does: it sends a request to obtain the PTP hardware clock time. ✨ To do that, it allocates the VIRTCHNL_OP_1588_PTP_GET_TIME message and queues it up to send, so the PHC time gets read indirectly.

🫶 important vibe check: this function does not wait for the reply from the PF. no cap, it just sends and dips.

⭐ RETURN ⭐

• 0 if success
• error code otherwise

💜 SEE ALSO 💜

• Kernel file ./drivers/net/ethernet/intel/iavf/iavf_ptp.c
• iavf_ptp_disable_rx_tstamp(9)
• iavf_ptp_enable_rx_tstamp(9)
• iavf_ptp_set_timestamp_mode(9)
• iavf_ptp_set_ts_config(9)
• iavf_ptp_cap_supported(9)
• iavf_allocate_ptp_cmd(9)
• iavf_queue_ptp_cmd(9)
• iavf_read_phc_indirect(9)
• iavf_ptp_cache_phc_time(9)
• iavf_ptp_do_aux_work(9)
• iavf_ptp_register_clock(9)
• iavf_ptp_init(9)
• iavf_ptp_release(9)
• iavf_ptp_process_caps(9)
• iavf_ptp_extend_32b_timestamp(9)

okay bye bestie 🫶 the source/version is ./drivers/net/ethernet/intel/iavf, the date is October 2026, and the page stays iavf_send_phc_read(9). periodt 💅