lpfc_scsi_prep_cmnd(9)

okay bestie, we're diving into the Kernel API Manual for lpfc_scsi_prep_cmnd(9). This one's all about converting SCSI commands to FCP info units, and it's giving major driver energy. Let's get into it 💅✨

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✨ NAME ✨

lpfc_scsi_prep_cmnd — the wrapper function that converts a SCSI command to an FCP info unit, fr fr.

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🌸 SYNOPSIS 🌸

int lpfc_scsi_prep_cmnd (struct lpfc_vport *vport , struct lpfc_io_buf
*lpfc_cmd , struct lpfc_nodelist *pnode );

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🎀 ARGUMENTS 🎀

• vport — The virtual port for which this call is being executed. It's the main character that tells you which virtual port you're on, iykyk.
• lpfc_cmd — The SCSI command which needs to send. Basically the message you're trying to slide into the device's DMs.
• pnode — Pointer to lpfc_nodelist. It's a pointer, bestie, so handle with care.

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💖 DESCRIPTION 💖

This routine is literally obsessed with initializing fcp_cmnd and iocb data structures from the SCSI command, so it can transfer to a device with SLI3 interface spec. No cap, that's the whole vibe.

Heads up bestie: this is specifically for devices with SLI3 interface spec. If you're on SLI4, this function is not the one, okay? Don't come for me 🙈

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🔥 SEE ALSO 🔥

okay so this is a whole group chat of related functions and files. We do not skip details in this house, so here's the entire list, periodt 💅

• Kernel file ./drivers/scsi/lpfc/lpfc_scsi.c
• 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_adjust_dl(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_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)

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This page was brought to you by the source/version at ./drivers/scsi/lpfc and the date October 2026. Stay slay, bestie, and remember: FCP info units are your friend 🫶💜