lpfc_sli4_config(9)

💫 lpfc_sli4_config(9) — like, the Kernel API Manual page, but make it make sense 💫

okay so bestie, welcome to lpfc_sli4_config(9) 💅 this is a page from the Kernel API Manual and honestly? she's giving "quiet little helper function that does a very specific job and does it flawlessly." no notes. let's get into it 🎀

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✨ NAME ✨

lpfc_sli4_config — literally just initializes the SLI4 Config Mailbox command. that's it. that's the whole vibe ✨

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🌸 SYNOPSIS 🌸

int lpfc_sli4_config (struct lpfc_hba *phba , struct lpfcMboxq *mbox ,
uint8_t subsystem , uint8_t opcode , uint32_t length , bool emb );

look at her. six arguments. main character energy fr fr 🔥

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🦋 ARGUMENTS 🦋

• phba — pointer to the lpfc hba data structure. the hba in question. the one and only 👑
• mbox — pointer to the lpfc mbox command. she's the mailbox, she gets set up 💌
• subsystem — the sli4 config sub mailbox subsystem. which subsystem we're in, iykyk.
• opcode — the sli4 config sub mailbox command opcode. the actual command being requested 🫶
• length — length of the sli4 config mailbox command (including sub-header). do not forget the sub-header, bestie, she counts 😭
• emb — true if an embedded mbox command should be setup. true = embedded setup, simple as that 🌈

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🧚 DESCRIPTION 🧚

so this routine sets up the header fields of the SLI4 specific mailbox command — specifically for sending an IOCTL command. header fields. that's her job. and she ate 💅✨

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⭐ RETURN ⭐

she returns the actual length of the mbox command allocated — which is mostly useful for the non-embedded mailbox command case, ngl. so if you're doing non-embedded stuff, that return value is your bestie 🫶

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🍓 SEE ALSO 🍓

the full squad. no cap, every single one of them 💜 Also, kernel file ./drivers/scsi/lpfc/lpfc_mbox.c and then:

lpfc_mbox_rsrc_prep(9), lpfc_mbox_rsrc_cleanup(9), lpfc_dump_static_vport(9), lpfc_down_link(9), lpfc_dump_mem(9), lpfc_dump_wakeup_param(9), lpfc_read_nv(9), lpfc_config_async(9), lpfc_heart_beat(9), lpfc_read_topology(9), lpfc_clear_la(9), lpfc_config_link(9), lpfc_config_msi(9), lpfc_init_link(9), lpfc_read_sparam(9), lpfc_unreg_did(9), lpfc_read_config(9), lpfc_read_lnk_stat(9), lpfc_reg_rpi(9), lpfc_unreg_login(9), lpfc_sli4_unreg_all_rpis(9), lpfc_reg_vpi(9), lpfc_unreg_vpi(9), lpfc_config_pcb_setup(9), lpfc_read_rev(9), lpfc_build_hbq_profile2(9), lpfc_build_hbq_profile3(9), lpfc_build_hbq_profile5(9), lpfc_config_hbq(9), lpfc_config_ring(9), lpfc_config_port(9), lpfc_kill_board(9), lpfc_mbox_put(9), lpfc_mbox_get(9), __lpfc_mbox_cmpl_put(9), lpfc_mbox_cmpl_put(9), lpfc_mbox_cmd_check(9), lpfc_mbox_dev_check(9), lpfc_mbox_tmo_val(9), lpfc_sli4_mbx_sge_set(9), lpfc_sli4_mbx_sge_get(9), lpfc_sli4_mbox_cmd_free(9), lpfc_sli4_mbox_rsrc_extent(9), lpfc_sli_config_mbox_subsys_get(9), lpfc_sli_config_mbox_opcode_get(9), lpfc_sli4_mbx_read_fcf_rec(9), lpfc_request_features(9), lpfc_init_vfi(9), lpfc_reg_vfi(9), lpfc_init_vpi(9), lpfc_unreg_vfi(9), lpfc_sli4_dump_cfg_rg23(9), lpfc_reg_fcfi(9), lpfc_reg_fcfi_mrq(9), lpfc_unreg_fcfi(9), lpfc_resume_rpi(9)

like… the whole friend group showed up to the function. iconic behavior, honestly 🎀👑

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💖 okay that's the page!! no gatekeeping, all the facts, all the flags. go forth and set up those mailbox headers, bestie. 🦋

oh and one last thing — this gorgeous girl lives in ./drivers/scsi/lpfc, she's dated October 2026, and she's filed under lpfc_sli4_config(9) in the Kernel API Manual. slay 💅✨