lpfc_sli_submit_iocb(9)

✨ NAME ✨

okay bestie, this is lpfc_sli_submit_iocb(9) — the function that submits an iocb to the firmware 💅 it's giving "here's your ring slot, go off."

🎀 SYNOPSIS 🎀

void lpfc_sli_submit_iocb (struct lpfc_hba *phba , struct lpfc_sli_ring
       *pring , IOCB_t *iocb , struct lpfc_iocbq *nextiocb );

💖 ARGUMENTS 💖

• phba — pointer to the HBA context object, aka the main-character context.
• pring — pointer to the driver SLI ring object, the ring bestie.
• iocb — pointer to the iocb slot in the ring.
• nextiocb — pointer to the driver iocb object that needs to be posted to firmware.

🦋 DESCRIPTION 🦋

okay so this function is literally called to post a new iocb to the firmware. It copies the new iocb to the ring iocb slot and updates the ring pointers — lowkey essential housekeeping ✨. Then it adds the new iocb to txcmplq if there's a completion callback for this iocb; if there isn't, the function frees the iocb object. And the hbalock is asserted held in the code path calling this routine, so yeah, it's already locked when this runs — no cap.

🌈 SEE ALSO 🌈

Kernel file: ./drivers/scsi/lpfc/lpfc_sli.c. And the whole extended fam is here, every single one:

lpfc_sli4_pcimem_bcopy(9)
lpfc_sli4_wq_put(9)
lpfc_sli4_wq_release(9)
lpfc_sli4_mq_put(9)
lpfc_sli4_mq_release(9)
lpfc_sli4_eq_get(9)
lpfc_sli4_eq_clr_intr(9)
lpfc_sli4_if6_eq_clr_intr(9)
lpfc_sli4_write_eq_db(9)
lpfc_sli4_if6_write_eq_db(9)
lpfc_sli4_cq_get(9)
lpfc_sli4_write_cq_db(9)
lpfc_sli4_if6_write_cq_db(9)
lpfc_cmd_iocb(9)
lpfc_resp_iocb(9)
__lpfc_sli_get_iocbq(9)
__lpfc_clear_active_sglq(9)
__lpfc_get_active_sglq(9)
lpfc_clr_rrq_active(9)
lpfc_handle_rrq_active(9)
lpfc_get_active_rrq(9)
lpfc_cleanup_vports_rrqs(9)
lpfc_test_rrq_active(9)
lpfc_set_rrq_active(9)
__lpfc_sli_get_els_sglq(9)
__lpfc_sli_get_nvmet_sglq(9)
lpfc_sli_get_iocbq(9)
__lpfc_sli_release_iocbq_s4(9)
__lpfc_sli_release_iocbq_s3(9)
__lpfc_sli_release_iocbq(9)
lpfc_sli_release_iocbq(9)
lpfc_sli_cancel_iocbs(9)
lpfc_sli_iocb_cmd_type(9)
lpfc_sli_ring_map(9)
lpfc_sli_ringtxcmpl_put(9)
lpfc_sli_ringtx_get(9)
lpfc_cmf_sync_cmpl(9)
lpfc_issue_cmf_sync_wqe(9)
lpfc_sli_next_iocb_slot(9)
lpfc_sli_next_iotag(9)
lpfc_sli_update_full_ring(9)
lpfc_sli_update_ring(9)
lpfc_sli_resume_iocb(9)
lpfc_sli_next_hbq_slot(9)
lpfc_sli_hbqbuf_free_all(9)
lpfc_sli_hbq_to_firmware(9)
lpfc_sli_hbq_to_firmware_s3(9)
lpfc_sli_hbq_to_firmware_s4(9)
lpfc_sli_hbqbuf_fill_hbqs(9)
lpfc_sli_hbqbuf_add_hbqs(9)
lpfc_sli_hbqbuf_init_hbqs(9)
lpfc_sli_rqbuf_get(9)
lpfc_sli_hbqbuf_find(9)
lpfc_sli_free_hbq(9)
lpfc_sli_chk_mbx_command(9)
lpfc_sli_wake_mbox_wait(9)
lpfc_sli_def_mbox_cmpl(9)
lpfc_sli_handle_mb_event(9)
lpfc_sli_get_buff(9)
lpfc_nvme_unsol_ls_handler(9)
lpfc_complete_unsol_iocb(9)
lpfc_sli_process_unsol_iocb(9)
lpfc_sli_iocbq_lookup(9)
lpfc_sli_iocbq_lookup_by_tag(9)
lpfc_sli_process_sol_iocb(9)
lpfc_sli_rsp_pointers_error(9)
lpfc_poll_eratt(9)
lpfc_sli_handle_fast_ring_event(9)
lpfc_sli_sp_handle_rspiocb(9)
lpfc_sli_handle_slow_ring_event(9)
lpfc_sli_handle_slow_ring_event_s3(9)
lpfc_sli_handle_slow_ring_event_s4(9)
lpfc_sli_abort_iocb_ring(9)
lpfc_sli_abort_fcp_rings(9)
lpfc_sli_flush_io_rings(9)
lpfc_sli_brdready_s3(9)
lpfc_sli_brdready_s4(9)
lpfc_sli_brdready(9)
lpfc_reset_barrier(9)
lpfc_sli_brdkill(9)
lpfc_sli_brdreset(9)
lpfc_sli4_brdreset(9)
lpfc_sli_brdrestart_s3(9)
lpfc_sli_brdrestart_s4(9)
lpfc_sli_brdrestart(9)
lpfc_sli_chipset_init(9)
lpfc_sli_hbq_count(9)
lpfc_sli_hbq_entry_count(9)
lpfc_sli_hbq_size(9)
lpfc_sli_hbq_setup(9)
lpfc_sli4_rb_setup(9)
lpfc_sli_config_port(9)
lpfc_sli_hba_setup(9)
lpfc_sli4_read_fcoe_params(9)
lpfc_sli4_read_rev(9)
lpfc_sli4_get_ctl_attr(9)
lpfc_sli4_retrieve_pport_name(9)
lpfc_sli4_arm_cqeq_intr(9)
lpfc_sli4_get_avail_extnt_rsrc(9)
lpfc_sli4_chk_avail_extnt_rsrc(9)
lpfc_sli4_cfg_post_extnts(9)
lpfc_sli4_alloc_extent(9)
lpfc_sli4_dealloc_extent(9)
lpfc_ras_stop_fwlog(9)
lpfc_sli4_ras_dma_free(9)
lpfc_sli4_ras_dma_alloc(9)
lpfc_sli4_ras_mbox_cmpl(9)
lpfc_sli4_ras_fwlog_init(9)
lpfc_sli4_ras_setup(9)
lpfc_sli4_alloc_resource_identifiers(9)
lpfc_sli4_dealloc_resource_identifiers(9)
lpfc_sli4_get_allocated_extnts(9)
lpfc_sli4_repost_sgl_list(9)
lpfc_sli4_repost_io_sgl_list(9)
lpfc_init_idle_stat_hb(9)
lpfc_rx_monitor_create_ring(9)
lpfc_rx_monitor_destroy_ring(9)
lpfc_rx_monitor_record(9)
lpfc_rx_monitor_report(9)
lpfc_cmf_setup(9)
lpfc_get_platform_uuid(9)
lpfc_sli4_hba_setup(9)
lpfc_mbox_timeout(9)
lpfc_sli4_mbox_completions_pending(9)
lpfc_sli4_process_missed_mbox_completions(9)
lpfc_mbox_timeout_handler(9)
lpfc_sli_issue_mbox_s3(9)
lpfc_sli4_async_mbox_block(9)
lpfc_sli4_async_mbox_unblock(9)
lpfc_sli4_wait_bmbx_ready(9)
lpfc_sli4_post_sync_mbox(9)
lpfc_sli_issue_mbox_s4(9)
lpfc_sli4_post_async_mbox(9)
lpfc_sli_issue_mbox(9)
lpfc_mbox_api_table_setup(9)
__lpfc_sli_ringtx_put(9)
lpfc_sli_next_iocb(9)
__lpfc_sli_issue_iocb_s3(9)
__lpfc_sli_issue_fcp_io_s3(9)
__lpfc_sli_issue_fcp_io_s4(9)
__lpfc_sli_issue_iocb_s4(9)
lpfc_sli_api_table_setup(9)
lpfc_sli4_calc_ring(9)
lpfc_sli_issue_iocb(9)
lpfc_extra_ring_setup(9)
lpfc_sli_async_event_handler(9)
lpfc_sli4_setup(9)
lpfc_sli_setup(9)
lpfc_sli4_queue_init(9)
lpfc_sli_queue_init(9)
lpfc_sli_mbox_sys_flush(9)
lpfc_sli_host_down(9)
lpfc_sli_hba_down(9)
lpfc_sli_pcimem_bcopy(9)
lpfc_sli_bemem_bcopy(9)
lpfc_sli_ringpostbuf_put(9)
lpfc_sli_get_buffer_tag(9)
lpfc_sli_ring_taggedbuf_get(9)
lpfc_sli_ringpostbuf_get(9)
lpfc_sli_abort_els_cmpl(9)
lpfc_ignore_els_cmpl(9)
lpfc_sli_issue_abort_iotag(9)
lpfc_sli_hba_iocb_abort(9)
lpfc_sli_validate_fcp_iocb_for_abort(9)
lpfc_sli_validate_fcp_iocb(9)
lpfc_sli_sum_iocb(9)
lpfc_sli_abort_fcp_cmpl(9)
lpfc_sli_abort_iocb(9)
lpfc_sli_abort_taskmgmt(9)
lpfc_sli_wake_iocb_wait(9)
lpfc_chk_iocb_flg(9)
lpfc_sli_issue_iocb_wait(9)
lpfc_sli_issue_mbox_wait(9)
lpfc_sli_mbox_sys_shutdown(9)
lpfc_sli_eratt_read(9)
lpfc_sli4_eratt_read(9)
lpfc_sli_check_eratt(9)
lpfc_intr_state_check(9)
lpfc_sli_sp_intr_handler(9)
lpfc_sli_fp_intr_handler(9)
lpfc_sli_intr_handler(9)
lpfc_sli4_els_xri_abort_event_proc(9)
lpfc_sli4_els_preprocess_rspiocbq(9)
lpfc_sli4_sp_handle_async_event(9)
lpfc_sli4_sp_handle_mbox_event(9)
lpfc_sli4_sp_handle_mcqe(9)
lpfc_sli4_sp_handle_els_wcqe(9)
lpfc_sli4_sp_handle_rel_wcqe(9)
lpfc_sli4_sp_handle_abort_xri_wcqe(9)
lpfc_sli4_sp_handle_rcqe(9)
lpfc_sli4_sp_handle_cqe(9)
lpfc_sli4_sp_handle_eqe(9)
__lpfc_sli4_process_cq(9)
__lpfc_sli4_sp_process_cq(9)
lpfc_sli4_sp_process_cq(9)
lpfc_sli4_dly_sp_process_cq(9)
lpfc_sli4_fp_handle_fcp_wcqe(9)
lpfc_sli4_fp_handle_rel_wcqe(9)
lpfc_sli4_nvmet_handle_rcqe(9)
lpfc_sli4_fp_handle_cqe(9)
__lpfc_sli4_hba_process_cq(9)
lpfc_sli4_hba_process_cq(9)
lpfc_sli4_hba_handle_eqe(9)
lpfc_sli4_dly_hba_process_cq(9)
lpfc_sli4_hba_intr_handler(9)
lpfc_sli4_intr_handler(9)
lpfc_sli4_queue_free(9)
lpfc_sli4_queue_alloc(9)
lpfc_dual_chute_pci_bar_map(9)
lpfc_modify_hba_eq_delay(9)
lpfc_eq_create(9)
lpfc_sli4_hba_intr_handler_th(9)
lpfc_cq_create(9)
lpfc_cq_create_set(9)
lpfc_mq_create_fb_init(9)
lpfc_mq_create(9)
lpfc_wq_create(9)
lpfc_rq_create(9)
lpfc_mrq_create(9)
lpfc_eq_destroy(9)
lpfc_cq_destroy(9)
lpfc_mq_destroy(9)
lpfc_wq_destroy(9)
lpfc_rq_destroy(9)
lpfc_sli4_post_sgl(9)
lpfc_sli4_alloc_xri(9)
__lpfc_sli4_free_xri(9)
lpfc_sli4_free_xri(9)
lpfc_sli4_next_xritag(9)
lpfc_sli4_post_sgl_list(9)
lpfc_sli4_post_io_sgl_block(9)
lpfc_sli4_post_io_sgl_list(9)
lpfc_fc_frame_check(9)
lpfc_fc_hdr_get_vfi(9)
lpfc_fc_frame_to_vport(9)
lpfc_update_rcv_time_stamp(9)
lpfc_cleanup_rcv_buffers(9)
lpfc_rcv_seq_check_edtov(9)
lpfc_fc_frame_add(9)
lpfc_sli4_abort_partial_seq(9)
lpfc_sli4_abort_ulp_seq(9)
lpfc_sli4_seq_abort_rsp_cmpl(9)
lpfc_sli4_xri_inrange(9)
lpfc_sli4_seq_abort_rsp(9)
lpfc_sli4_handle_unsol_abort(9)
lpfc_seq_complete(9)
lpfc_prep_seq(9)
lpfc_sli4_handle_received_buffer(9)
lpfc_sli4_post_all_rpi_hdrs(9)
lpfc_sli4_post_rpi_hdr(9)
lpfc_sli4_alloc_rpi(9)
__lpfc_sli4_free_rpi(9)
lpfc_sli4_free_rpi(9)
lpfc_sli4_remove_rpis(9)
lpfc_sli4_resume_rpi(9)
lpfc_sli4_init_vpi(9)
lpfc_mbx_cmpl_add_fcf_record(9)
lpfc_sli4_add_fcf_record(9)
lpfc_sli4_build_dflt_fcf_record(9)
lpfc_sli4_fcf_scan_read_fcf_rec(9)
lpfc_sli4_fcf_rr_read_fcf_rec(9)
lpfc_sli4_read_fcf_rec(9)
lpfc_check_next_fcf_pri_level(9)
lpfc_sli4_fcf_rr_next_index_get(9)
lpfc_sli4_fcf_rr_index_set(9)
lpfc_sli4_fcf_rr_index_clear(9)
lpfc_mbx_cmpl_redisc_fcf_table(9)
lpfc_sli4_redisc_fcf_table(9)
lpfc_sli4_fcf_dead_failthrough(9)
lpfc_sli_get_config_region23(9)
lpfc_sli4_get_config_region23(9)
lpfc_sli_read_link_ste(9)
lpfc_log_fw_write_cmpl(9)
lpfc_wr_object(9)
lpfc_cleanup_pending_mbox(9)
lpfc_drain_txq(9)
lpfc_wqe_bpl2sgl(9)
lpfc_sli4_issue_wqe(9)
lpfc_sli4_issue_abort_iotag(9)
lpfc_snapshot_mxp(9)
lpfc_adjust_pvt_pool_count(9)
lpfc_adjust_high_watermark(9)
lpfc_move_xri_pvt_to_pbl(9)
_lpfc_move_xri_pbl_to_pvt(9)
lpfc_move_xri_pbl_to_pvt(9)
lpfc_keep_pvt_pool_above_lowwm(9)
lpfc_release_io_buf(9)
lpfc_get_io_buf_from_private_pool(9)
lpfc_get_io_buf_from_expedite_pool(9)
lpfc_get_io_buf_from_multixri_pools(9)
lpfc_get_io_buf(9)
lpfc_read_object(9)
lpfc_get_sgl_per_hdwq(9)
lpfc_put_sgl_per_hdwq(9)
lpfc_free_sgl_per_hdwq(9)
lpfc_get_cmd_rsp_buf_per_hdwq(9)
lpfc_put_cmd_rsp_buf_per_hdwq(9)
lpfc_free_cmd_rsp_buf_per_hdwq(9)
lpfc_sli_prep_wqe(9)

mwah 💋 — this page comes from ./drivers/scsi/lpfc, dated October 2026, and it's literally lpfc_sli_submit_iocb(9). bye bestie 🫶