lpfc_bg_scsi_adjust_dl(9)
π lpfc_bg_scsi_adjust_dl(9) β Kernel API Manual, bestie β¨
Okay so this is a page from the Kernel API Manual, section 9, and we're talking about lpfc_bg_scsi_adjust_dl β literally the little function that fixes up your SCSI data length so BlockGuard math actually works out. Strap in, it's short but it's iconic π
πΈ NAME πΈ
lpfc_bg_scsi_adjust_dl β Adjust SCSI data length for BlockGuard. That's it, that's the whole vibe β¨
π¦ SYNOPSIS π¦
int lpfc_bg_scsi_adjust_dl (struct lpfc_hba *phba , struct lpfc_io_buf
*lpfc_cmd );
Like, she takes two things and gives you back an int. No drama π«Ά
π ARGUMENTS π
phbaβ The Hba for which this call is being executed. Yes, capital-H Hba, that's how the original says it, I don't make the rules πlpfc_cmdβ The scsi buffer which is going to be adjusted. She's getting a glow-up, basically. β¨
π DESCRIPTION π
So what does she actually do? She adjusts the data length to account for how much data is actually on the wire π₯ Real ones know the wire is the only thing that matters β not what you thought you were sending.
And then: returns the adjusted data length. No cap, that's the whole return value. It's giving "does one thing and does it well" energy π
π SEE ALSO π
Literally the whole friend group π The kernel file lives at ./drivers/scsi/lpfc/lpfc_scsi.c, and here's everyone she hangs out with:
lpfc_sli4_set_rsp_sgl_last(9)lpfc_rampdown_queue_depth(9)lpfc_ramp_down_queue_handler(9)lpfc_scsi_dev_block(9)lpfc_new_scsi_buf_s3(9)lpfc_sli4_vport_delete_fcp_xri_aborted(9)lpfc_sli4_io_xri_aborted(9)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)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)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)lpfc_bg_scsi_prep_dma_buf_s3(9)lpfc_scsi_prep_dma_buf_s4(9)lpfc_bg_scsi_prep_dma_buf_s4(9)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)lpfc_scsi_unprep_dma_buf(9)lpfc_unblock_requests(9)lpfc_block_requests(9)lpfc_update_cmf_cmpl(9)lpfc_update_cmf_cmd(9)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)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)lpfc_check_pci_resettable(9)lpfc_info(9)lpfc_poll_rearm_timer(9)lpfc_poll_start_timer(9)lpfc_poll_timeout(9)lpfc_queuecommand(9)lpfc_abort_handler(9)lpfc_check_fcp_rsp(9)lpfc_send_taskmgmt(9)lpfc_chk_tgt_mapped(9)lpfc_reset_flush_io_context(9)lpfc_device_reset_handler(9)lpfc_target_reset_handler(9)lpfc_host_reset_handler(9)lpfc_sdev_init(9)lpfc_sdev_configure(9)lpfc_sdev_destroy(9)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)
Bestie note: that list is long, yes, but every single one of those references is real and belongs here, so don't skip 'em π
And that's the page! Sourced from ./drivers/scsi/lpfc, dated October 2026, and this whole little API manual entry goes by lpfc_bg_scsi_adjust_dl(9). Slay, go adjust some lengths π
β¨π
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms