lpfc_free_sgl_per_hdwq(9)

📦 version 7.3.1, in nixpkgs unstable

💅 lpfc_free_sgl_per_hdwq(9) — from the Kernel API Manual ✨

okay bestie, so this whole page lives in the Kernel API Manual (section 9, kernel API vibes only 🎀) and it's all about one very specific little cleanup function. it's short, it's sweet, it slays, and it does exactly one thing. let's get into it 💖

💖 NAME 💖

lpfc_free_sgl_per_hdwq — frees, like, all the SGL chunks of an hdwq pool. every single one. no stragglers. periodt 🧹✨

✨ SYNOPSIS ✨

void lpfc_free_sgl_per_hdwq (struct lpfc_hba *phba , struct
lpfc_sli4_hdw_queue *hdwq );

note the void bestie — this function does not hand you back a return value. it just does the thing and dips 💅

🫶 ARGUMENTS 🫶

  • phba — the phba object 🦋 (that's the struct lpfc_hba * you're passing in)
  • hdwq — the hdwq whose sgl buff resources we're bout to clean up 🧼 (the struct lpfc_sli4_hdw_queue *)

🌸 DESCRIPTION 🌸

so the way that this works is: this routine frees all SGL chunks of the hdwq SGL chunk pool. that's it. that's the whole vibe. literally all of them, freed, gone, bye 👋

Return codes: None 😌 — nothing to check, nothing to handle, she returns void and she's unbothered.

🔥 SEE ALSO 🔥

bestie. sit down. this list is long and i mean iconic-long 👑

kernel file ./drivers/scsi/lpfc/lpfc_sli.c, plus:

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_submit_iocb(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_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)

like i said. iconic. go read them all, i'll wait 💀🫶

ngl bestie, this is kernel-space SCSI driver territory — read the whole family of lpfc_sli* calls before you go poking at it fr fr 🙈

and that's the whole page, mwah 💋 — brought to you by the fine folks living in ./drivers/scsi/lpfc, dated October 2026, and catalogued as lpfc_free_sgl_per_hdwq(9). go free those SGL chunks, queen 👑✨🌸

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