ibmvfc_read_trace(9)

💖 NAME 💖

Okay bestie, welcome to ibmvfc_read_trace(9) from the Kernel API Manual ✨. The name is ibmvfc_read_trace, and it’s here to Dump the adapter trace. That’s the vibe 🎀.

🦋 SYNOPSIS 🦋

ssize_t ibmvfc_read_trace (struct file *filp , struct kobject *kobj ,
       const struct bin_attribute *bin_attr , char *buf , loff_t off , size_t
       count );

🌸 ARGUMENTS 🌸

• filp — open sysfs file 👀
• kobj — kobject struct 🧚
• bin_attr — bin_attribute struct 🎀
• buf — buffer 🫶
• off — offset 📍
• count — buffer size 📏

💅 DESCRIPTION 💅

Okay so the description is literally this: Return value: number of bytes printed to buffer. That’s the whole tea, no extra lore ⭐.

🌈 SEE ALSO 🌈

Kernel file ./drivers/scsi/ibmvscsi/ibmvfc-core.c — plus the entire friend group, all exact, no cap:

• ibmvfc_trc_start(9), ibmvfc_trc_end(9), ibmvfc_get_err_index(9), ibmvfc_get_cmd_error(9)
• ibmvfc_get_err_result(9), ibmvfc_retry_cmd(9), ibmvfc_get_ls_explain(9), ibmvfc_get_gs_explain(9)
• ibmvfc_get_fc_type(9), ibmvfc_set_tgt_action(9), ibmvfc_set_host_state(9), ibmvfc_set_host_action(9)
• ibmvfc_reinit_host(9), ibmvfc_del_tgt(9), ibmvfc_link_down(9), ibmvfc_init_host(9)
• ibmvfc_send_crq(9), ibmvfc_send_crq_init(9), ibmvfc_send_crq_init_complete(9), ibmvfc_init_event_pool(9)
• ibmvfc_free_event_pool(9), ibmvfc_free_queue(9), ibmvfc_release_crq_queue(9), ibmvfc_reenable_crq_queue(9)
• ibmvfc_reset_crq(9), ibmvfc_valid_event(9), ibmvfc_free_event(9), ibmvfc_vfc_eh_done(9)
• ibmvfc_complete_purge(9), ibmvfc_fail_request(9), ibmvfc_purge_requests(9), ibmvfc_hard_reset_host(9)
• __ibmvfc_reset_host(9), ibmvfc_reset_host(9), ibmvfc_retry_host_init(9), __ibmvfc_get_target(9)
• ibmvfc_get_target(9), ibmvfc_get_host_speed(9), ibmvfc_get_host_port_state(9), ibmvfc_set_rport_dev_loss_tmo(9)
• ibmvfc_release_tgt(9), ibmvfc_get_starget_node_name(9), ibmvfc_get_starget_port_name(9), ibmvfc_get_starget_port_id(9)
• ibmvfc_wait_while_resetting(9), ibmvfc_issue_fc_host_lip(9), ibmvfc_gather_partition_info(9), ibmvfc_set_login_info(9)
• __ibmvfc_get_event(9), ibmvfc_locked_done(9), ibmvfc_init_event(9), ibmvfc_map_sg_list(9)
• ibmvfc_map_sg_data(9), ibmvfc_timeout(9), ibmvfc_send_event(9), ibmvfc_log_error(9)
• ibmvfc_scsi_relogin(9), ibmvfc_scsi_done(9), ibmvfc_host_chkready(9), ibmvfc_queuecommand(9)
• ibmvfc_sync_completion(9), ibmvfc_bsg_timeout_done(9), ibmvfc_bsg_timeout(9), ibmvfc_bsg_plogi(9)
• ibmvfc_bsg_request(9), ibmvfc_reset_device(9), ibmvfc_match_rport(9), ibmvfc_match_target(9)
• ibmvfc_match_lun(9), ibmvfc_event_is_free(9), ibmvfc_wait_for_ops(9), ibmvfc_cancel_all(9)
• ibmvfc_match_key(9), ibmvfc_match_evt(9), ibmvfc_abort_task_set(9), ibmvfc_eh_abort_handler(9)
• ibmvfc_eh_device_reset_handler(9), ibmvfc_dev_cancel_all_noreset(9), ibmvfc_eh_target_reset_handler(9), ibmvfc_eh_host_reset_handler(9)
• ibmvfc_terminate_rport_io(9), ibmvfc_get_ae_desc(9), ibmvfc_get_link_state(9), ibmvfc_handle_async(9)
• ibmvfc_handle_crq(9), ibmvfc_scan_finished(9), ibmvfc_sdev_init(9), ibmvfc_target_alloc(9)
• ibmvfc_sdev_configure(9), ibmvfc_change_queue_depth(9), ibmvfc_show_log_level(9), ibmvfc_store_log_level(9)
• ibmvfc_next_async_crq(9), ibmvfc_next_crq(9), ibmvfc_interrupt(9), ibmvfc_tasklet(9)
• ibmvfc_init_tgt(9), ibmvfc_retry_tgt_init(9), ibmvfc_get_prli_rsp(9), ibmvfc_tgt_prli_done(9)
• ibmvfc_tgt_send_prli(9), ibmvfc_tgt_plogi_done(9), ibmvfc_tgt_send_plogi(9), ibmvfc_tgt_implicit_logout_done(9)
• __ibmvfc_tgt_get_implicit_logout_evt(9), ibmvfc_tgt_implicit_logout(9), ibmvfc_tgt_implicit_logout_and_del_done(9), ibmvfc_tgt_implicit_logout_and_del(9)
• ibmvfc_tgt_move_login_done(9), ibmvfc_tgt_move_login(9), ibmvfc_adisc_needs_plogi(9), ibmvfc_tgt_adisc_done(9)
• ibmvfc_init_passthru(9), ibmvfc_tgt_adisc_cancel_done(9), ibmvfc_adisc_timeout(9), ibmvfc_tgt_adisc(9)
• ibmvfc_tgt_query_target_done(9), ibmvfc_tgt_query_target(9), ibmvfc_alloc_target(9), ibmvfc_alloc_targets(9)
• ibmvfc_discover_targets_done(9), ibmvfc_discover_targets(9), ibmvfc_npiv_login_done(9), ibmvfc_npiv_login(9)
• ibmvfc_npiv_logout_done(9), ibmvfc_npiv_logout(9), ibmvfc_dev_init_to_do(9), ibmvfc_dev_logo_to_do(9)
• __ibmvfc_work_to_do(9), ibmvfc_work_to_do(9), ibmvfc_log_ae(9), ibmvfc_tgt_add_nvme_rport(9)
• ibmvfc_tgt_add_rport(9), ibmvfc_do_work(9), ibmvfc_work(9), ibmvfc_alloc_queue(9)
• ibmvfc_init_crq(9), ibmvfc_free_mem(9), ibmvfc_alloc_mem(9), ibmvfc_rport_add_thread(9)
• ibmvfc_probe(9), ibmvfc_remove(9), ibmvfc_resume(9), ibmvfc_get_desired_dma(9)
• ibmvfc_module_init(9), ibmvfc_module_exit(9)

Cute sign-off bestie 💖 — source/version is ./drivers/scsi/ibmvscsi, the date is October 2026, and the manual page tag is ibmvfc_read_trace(9) 🎀🫶