lpfc_mbox_rsrc_cleanup(9)

🌸 lpfc_mbox_rsrc_cleanup 💅

okay so real quick — this is a page from the Kernel API Manual, and it's all about lpfc_mbox_rsrc_cleanup(9), aka the little cleanup fairy for mailbox resources. she's not glamorous, she's just necessary. and honestly? iconic behavior.

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✨ NAME ✨

lpfc_mbox_rsrc_cleanup — frees the mailbox DMA buffer and the virtual memory. that's it. that's the whole job. no cap.

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🦋 SYNOPSIS 🦋

void lpfc_mbox_rsrc_cleanup (struct lpfc_hba *phba , LPFC_MBOXQ_t *mbox
, enum lpfc_mbox_ctx locked );

like, she takes three args and returns void — she gives nothing back, she only takes away. main character energy honestly.

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🎀 ARGUMENTS 🎀

• phba — pointer to the lpfc hba data structure. your whole adapter situation lives here, bestie.
• mbox — pointer to the driver internal queue element for the mailbox command. this is the thing she's about to yeet back into the pool.
• locked — a value that indicates whether the hbalock is held (1) or not held (0). lowkey important: pick the right one. 🙈

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💖 DESCRIPTION 💖

so listen. a mailbox command is made of two things: the pool memory for the command (that's mbox), and possibly a DMA buffer for the data transfer. that's the whole anatomy. 🫶

this routine is the standard framework for releasing any dma buffers, freeing all the memory resources inside it, and releasing the mbox back to the phba pool. three-for-one slay.

callers should use this routine for cleanup for all mailboxes prepped with lpfc_mbox_rsrc_prep. like, if you prepped with her sister, you clean up with her. matching set, fr fr. 💅

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🔥 SEE ALSO 🔥

go check out the kernel file ./drivers/scsi/lpfc/lpfc_mbox.c, plus literally this entire friend group:

• lpfc_mbox_rsrc_prep(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_config(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)

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⭐ the cute sign-off ⭐

this lil masterpiece lives in ./drivers/scsi/lpfc, it's dated October 2026, and it goes by lpfc_mbox_rsrc_cleanup(9). 🎀

now go free your buffers, bestie — memory leaks are so not the vibe. 🌈💜