lpfc_host_reset_handler(9)

🌸 NAME 🌸

okay so bestie, this page is lpfc_host_reset_handler(9) from the Kernel API Manual, and it's literally the scsi_host_template eh_host_reset_handler entry pt. no cap, that's the whole name vibe: lpfc_host_reset_handler — scsi_host_template eh_host_reset_handler entry pt. ✨

✨ SYNOPSIS ✨

int lpfc_host_reset_handler (struct scsi_cmnd *cmnd );

🎀 ARGUMENTS 🎀

• cmnd — pointer to the scsi_cmnd data structure. that's the argument, bestie, and honestly it's giving exactly what it needs to give. 💅

💖 DESCRIPTION 💖

okay so this routine does host reset to the adaptor port. it brings the HBA offline, performs a board restart, and then brings the board back online. the way it works: lpfc_offline calls lpfc_sli_hba_down, which will abort and local reject all outstanding SCSI commands to the host and error returned back to SCSI mid-level. 😭

because this will be SCSI mid-level's last resort of error handling, it will only return error if resetting of the adapter is not successful; in all other cases, will return success. periodt. 💯

return code, bestie: 0x2003 - Error, 0x2002 - Success. write that down. 📝

🦋 SEE ALSO 🦋

kernel file: ./drivers/scsi/lpfc/lpfc_scsi.c

also peep these icon functions, all listed so nobody comes for me:

• lpfc_sli4_set_rsp_sgl_last(9), lpfc_rampdown_queue_depth(9), lpfc_ramp_down_queue_handler(9), lpfc_scsi_dev_block(9) — yes bestie, all real refs.
• lpfc_new_scsi_buf_s3(9), lpfc_sli4_vport_delete_fcp_xri_aborted(9), lpfc_sli4_io_xri_aborted(9) — these are in the group chat too.
• lpfc_get_scsi_buf_s3(9), lpfc_get_scsi_buf_s4(9), lpfc_get_scsi_buf(9), lpfc_release_scsi_buf_s3(9), lpfc_release_scsi_buf_s4(9), lpfc_release_scsi_buf(9) — buffer besties, slay.
• lpfc_fcpcmd_to_iocb(9), lpfc_scsi_prep_dma_buf_s3(9), lpfc_bg_err_inject(9), lpfc_sc_to_bg_opcodes(9), lpfc_bg_err_opcodes(9) — lowkey essential.
• lpfc_bg_setup_bpl(9), lpfc_bg_setup_bpl_prot(9), lpfc_bg_setup_sgl(9), lpfc_bg_setup_sgl_prot(9), lpfc_prot_group_type(9) — setup squad, periodt.
• lpfc_bg_scsi_adjust_dl(9), lpfc_bg_scsi_prep_dma_buf_s3(9), lpfc_scsi_prep_dma_buf_s4(9), lpfc_bg_scsi_prep_dma_buf_s4(9) — dma prep icons.
• lpfc_scsi_prep_dma_buf(9), lpfc_bg_scsi_prep_dma_buf(9), lpfc_scsi_prep_cmnd_buf(9), lpfc_send_scsi_error_event(9) — more prep and error-event energy.
• lpfc_scsi_unprep_dma_buf(9), lpfc_unblock_requests(9), lpfc_block_requests(9), lpfc_update_cmf_cmpl(9), lpfc_update_cmf_cmd(9) — blocking and updating, we love to see it.
• lpfc_handle_fcp_err(9), lpfc_fcp_io_cmd_wqe_cmpl(9), lpfc_scsi_cmd_iocb_cmpl(9), lpfc_scsi_prep_cmnd_buf_s3(9), lpfc_scsi_prep_cmnd_buf_s4(9) — completion and error-handling girlies.
• lpfc_scsi_prep_cmnd(9), lpfc_scsi_prep_task_mgmt_cmd_s3(9), lpfc_scsi_prep_task_mgmt_cmd_s4(9), lpfc_scsi_api_table_setup(9), lpfc_tskmgmt_def_cmpl(9) — task management representation.
• lpfc_check_pci_resettable(9), lpfc_info(9), lpfc_poll_rearm_timer(9), lpfc_poll_start_timer(9), lpfc_poll_timeout(9) — pci and poll besties.
• lpfc_queuecommand(9), lpfc_abort_handler(9), lpfc_check_fcp_rsp(9), lpfc_send_taskmgmt(9), lpfc_chk_tgt_mapped(9) — queue and abort crew.
• lpfc_reset_flush_io_context(9), lpfc_device_reset_handler(9), lpfc_target_reset_handler(9), lpfc_sdev_init(9), lpfc_sdev_configure(9), lpfc_sdev_destroy(9) — reset handlers and sdev lifecycle, iconic.
• lpfc_create_device_data(9), lpfc_delete_device_data(9), __lpfc_get_device_data(9), lpfc_find_next_oas_lun(9), lpfc_enable_oas_lun(9), lpfc_disable_oas_lun(9) — device data and oas lun crew, all accounted for. 🫶

mwah 💋 source/version: ./drivers/scsi/lpfc; date: October 2026; and the page title again: lpfc_host_reset_handler(9). that's the footer, bestie, not a drill. 🎀