lpfc_oas_lun_state_set(9)

💖 lpfc_oas_lun_state_set (9) — Kernel API Manual ✨

okay so bestie, welcome to the glow-up era of lpfc_oas_lun_state_set from the Kernel API Manual. no cap, this one's a little function with a big job: it either turns OAS on for a LUN or turns it off. that's it, that's the whole vibe. let's get into it 🫶

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🌸 NAME 🌸

lpfc_oas_lun_state_set — enable or disable a lun for Optimized Access Storage (OAS) operations. literally its whole personality 💅

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🦋 SYNOPSIS 🦋

size_t lpfc_oas_lun_state_set (struct lpfc_hba *phba , uint8_t
vpt_wwpn[] , uint8_t tgt_wwpn[] , uint64_t lun , uint32_t oas_state ,
uint8_t pri );

like, six whole arguments. she's high-maintenance but she's worth it ✨

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🎀 ARGUMENTS 🎀

• phba — the lpfc_hba pointer. your main character struct, the whole hba vibe 👑
• vpt_wwpn — the wwpn of the vport associated with the returned lun 🦋
• tgt_wwpn — the wwpn of the target associated with the returned lun 🌸
• lun — the fc lun, aka the one getting its oas state set. this is the lun, the moment, the icon 💅
• oas_state — the actual oas state you're setting on that lun. the whole point, honestly 🔥
• pri — priority. yes queen, priorities ⭐

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💜 RETURN 💜

SUCCESS : 0 -EPERM OAS is not enabled or not supported by this port.

so you either get SUCCESS : 0, or you get -EPERM because OAS is not enabled or not supported by this port. rude, but valid 😭 if your port isn't about that OAS life, it will simply tell you no 💀

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🧚 SEE ALSO 🧚

Kernel file ./drivers/scsi/lpfc/lpfc_attr.c — and bestie, the friend group is huge, we're talking group-chat-with-200-members huge. every single one of these icons:

lpfc_jedec_to_ascii(9), lpfc_drvr_version_show(9), lpfc_enable_fip_show(9), lpfc_info_show(9), lpfc_serialnum_show(9), lpfc_temp_sensor_show(9), lpfc_modeldesc_show(9), lpfc_modelname_show(9), lpfc_programtype_show(9), lpfc_vportnum_show(9), lpfc_fwrev_show(9), lpfc_hdw_show(9), lpfc_option_rom_version_show(9), lpfc_link_state_show(9), lpfc_sli4_protocol_show(9), lpfc_oas_supported_show(9), lpfc_link_state_store(9), lpfc_num_discovered_ports_show(9), lpfc_issue_lip(9), lpfc_do_offline(9), lpfc_reset_pci_bus(9), lpfc_selective_reset(9), lpfc_issue_reset(9), lpfc_sli4_pdev_status_reg_wait(9), lpfc_sli4_pdev_reg_request(9), lpfc_nport_evt_cnt_show(9), lpfc_board_mode_show(9), lpfc_board_mode_store(9), lpfc_get_hba_info(9), lpfc_max_rpi_show(9), lpfc_used_rpi_show(9), lpfc_max_xri_show(9), lpfc_used_xri_show(9), lpfc_max_vpi_show(9), lpfc_used_vpi_show(9), lpfc_npiv_info_show(9), lpfc_poll_show(9), lpfc_poll_store(9), lpfc_sriov_hw_max_virtfn_show(9), lpfc_enable_bbcr_set(9), lpfc_wwn_set(9), lpfc_oas_tgt_show(9), lpfc_oas_tgt_store(9), lpfc_oas_priority_show(9), lpfc_oas_priority_store(9), lpfc_oas_vpt_show(9), lpfc_oas_vpt_store(9), lpfc_oas_lun_state_show(9), lpfc_oas_lun_state_store(9), lpfc_oas_lun_status_show(9), lpfc_oas_lun_get_next(9), lpfc_oas_lun_state_change(9), lpfc_oas_lun_show(9), lpfc_oas_lun_store(9), lpfc_nodev_tmo_show(9), lpfc_nodev_tmo_init(9), lpfc_update_rport_devloss_tmo(9), lpfc_nodev_tmo_set(9), lpfc_devloss_tmo_set(9), lpfc_tgt_queue_depth_set(9), lpfc_restrict_login_init(9), lpfc_restrict_login_set(9), lpfc_topology_store(9), lpfc_static_vport_show(9), lpfc_link_speed_store(9), lpfc_link_speed_init(9), lpfc_aer_support_store(9), lpfc_aer_cleanup_state(9), lpfc_sriov_nr_virtfn_store(9), lpfc_request_firmware_upgrade_store(9), lpfc_request_firmware_upgrade_init(9), lpfc_force_rscn_store(9), lpfc_force_rscn_init(9), lpfc_fcp_imax_store(9), lpfc_fcp_imax_init(9), lpfc_cq_max_proc_limit_store(9), lpfc_cq_max_proc_limit_init(9), lpfc_fcp_cpu_map_show(9), lpfc_fcp_cpu_map_store(9), lpfc_fcp_cpu_map_init(9), lpfc_cpumask_irq_mode_init(9), lpfc_irq_chann_show(9), lpfc_sg_seg_cnt_show(9), lpfc_sg_seg_cnt_init(9), sysfs_ctlreg_write(9), sysfs_ctlreg_read(9), sysfs_mbox_write(9), sysfs_mbox_read(9), lpfc_alloc_sysfs_attr(9), lpfc_free_sysfs_attr(9), lpfc_get_host_symbolic_name(9), lpfc_get_host_port_id(9), lpfc_get_host_port_type(9), lpfc_get_host_port_state(9), lpfc_get_host_speed(9), lpfc_get_host_fabric_name(9), lpfc_get_stats(9), lpfc_reset_stats(9), lpfc_get_enc_info(9), lpfc_get_node_by_target(9), lpfc_get_starget_port_id(9), lpfc_get_starget_node_name(9), lpfc_get_starget_port_name(9), lpfc_set_rport_loss_tmo(9), lpfc_set_vport_symbolic_name(9), lpfc_hba_log_verbose_init(9), lpfc_get_hba_function_mode(9), lpfc_get_cfgparam(9), lpfc_nvme_mod_param_dep(9), lpfc_get_vport_cfgparam(9)

like. all of them. no skipping, we don't do that here 🫶

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and that's the tea, bestie 🍓 this fab little page lives in ./drivers/scsi/lpfc and it's dated October 2026 — so yeah, she's got a timestamp and she's not afraid to use it. go forth and set those lun states 💖✨🎀