hw_event_phy_down(9)

💖 NAME 💖

hw_event_phy_down — bestie, we gotta notify libsas that the phy is down. that's the whole job. that's the vibe.

(this is a page from the Kernel API Manual, section 9, and yes it's giving very much niche-kernel-girlie ✨)

---

🌸 SYNOPSIS 🌸

void hw_event_phy_down (struct pm8001_hba_info *pm8001_ha , void *piomb
);

no return value, no drama, it literally just returns void and gets on with its life 💅

---

🎀 ARGUMENTS 🎀

• pm8001_ha — our hba card information 🫶 this is the whole card's info struct, the main character of the pm8001 universe
• piomb — IO message buffer 💌 the buffer carrying the IO message

---

🦋 SEE ALSO 🦋

Kernel file ./drivers/scsi/pm8001/pm80xx_hwi.c 👑 (that's where the actual source lives, go read it, iykyk)

and the whole friend group — literally all of these:

• read_main_config_table(9)
• read_general_status_table(9)
• read_phy_attr_table(9)
• read_inbnd_queue_table(9)
• read_outbnd_queue_table(9)
• init_default_table_values(9)
• update_main_config_table(9)
• update_inbnd_queue_table(9)
• update_outbnd_queue_table(9)
• mpi_init_check(9)
• check_fw_ready(9)
• pm80xx_set_thermal_config(9)
• pm80xx_set_sas_protocol_timer_config(9)
• pm80xx_get_encrypt_info(9)
• pm80xx_encrypt_update(9)
• pm80xx_chip_init(9)
• pm80xx_fatal_error_uevent_emit(9)
• pm80xx_fatal_errors(9)
• pm80xx_chip_soft_rst(9)
• pm80xx_chip_interrupt_enable(9)
• pm80xx_chip_interrupt_disable(9)
• mpi_ssp_completion(9)
• pm80xx_hw_event_ack_req(9)
• hw_event_sas_phy_up(9)
• hw_event_sata_phy_up(9)
• mpi_thermal_hw_event(9)
• mpi_hw_event(9)
• mpi_phy_stop_resp(9)
• mpi_set_controller_config_resp(9)
• mpi_get_controller_config_resp(9)
• mpi_get_phy_profile_resp(9)
• mpi_flash_op_ext_resp(9)
• mpi_set_phy_profile_resp(9)
• mpi_kek_management_resp(9)
• mpi_dek_management_resp(9)
• ssp_coalesced_comp_resp(9)
• process_one_iomb(9)
• pm80xx_chip_smp_req(9)
• pm80xx_chip_ssp_io_req(9)
• pm80xx_chip_phy_start_req(9)
• pm80xx_chip_phy_stop_req(9)
• pm80xx_chip_phy_ctl_req(9)
• pm80xx_chip_isr(9)

like, that's the whole gc right there 🫶💀

---

oh and quick note: hw_event_sas_phy_up(9) and hw_event_sata_phy_up(9) are literally the opposite energy of this page — this one's the down one. slay either way tho 💅

---

🌈 ok that's the page!! sourced straight from ./drivers/scsi/pm8001, dated October 2026, and it's hw_event_phy_down(9) — periodt, don't forget it bestie 💖✨🎀