megaraid_alloc_cmd_packets(9)

💖 megaraid_alloc_cmd_packets 💖

okay so you're reading the Kernel API Manual page for megaraid_alloc_cmd_packets(9) and honestly? iconic of you. this is the big allocator, bestie, and we're gonna get into it.

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✨ NAME ✨

megaraid_alloc_cmd_packets — allocate shared mailbox, no cap 🫶

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🌸 SYNOPSIS 🌸

int megaraid_alloc_cmd_packets (adapter_t *adapter );

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🎀 ARGUMENTS 🎀

• adapter — the soft state of the raid controller, aka the main character of this function 💅

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🦋 DESCRIPTION 🦋

okay so what this does is literally allocate and align the shared mailbox. this mailbox is the whole reason anything gets done — it's what you use to issue all the commands. every single one. she's booked and busy 💀

for IO based controllers, the mailbox also gets registered with the FW. yeah, you read that right, it gets introduced to the firmware. networking era 💖

and it allocates memory for all the commands as well, because of course it does. this is our big allocator — she does the most, she carries the team, periodt 👑

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🧚 SEE ALSO 🧚

the whole friend group, fr fr. the kernel file lives at ./drivers/scsi/megaraid/megaraid_mbox.c and here's everyone else you should go say hi to:

• megaraid_init(9)
• megaraid_exit(9)
• megaraid_probe_one(9)
• megaraid_detach_one(9)
• megaraid_mbox_shutdown(9)
• megaraid_io_attach(9)
• megaraid_io_detach(9)
• megaraid_init_mbox(9)
• megaraid_fini_mbox(9)
• megaraid_free_cmd_packets(9)
• megaraid_mbox_setup_dma_pools(9)
• megaraid_mbox_teardown_dma_pools(9)
• megaraid_alloc_scb(9)
• megaraid_dealloc_scb(9)
• megaraid_mbox_mksgl(9)
• mbox_post_cmd(9)
• megaraid_queue_command_lck(9)
• megaraid_mbox_build_cmd(9)
• megaraid_mbox_runpendq(9)
• megaraid_mbox_prepare_pthru(9)
• megaraid_mbox_prepare_epthru(9)
• megaraid_ack_sequence(9)
• megaraid_isr(9)
• megaraid_mbox_dpc(9)
• megaraid_abort_handler(9)
• megaraid_reset_handler(9)
• mbox_post_sync_cmd(9)
• mbox_post_sync_cmd_fast(9)
• megaraid_busywait_mbox(9)
• megaraid_mbox_product_info(9)
• megaraid_mbox_extended_cdb(9)
• megaraid_mbox_support_ha(9)
• megaraid_mbox_support_random_del(9)
• megaraid_mbox_get_max_sg(9)
• megaraid_mbox_enum_raid_scsi(9)
• megaraid_mbox_flush_cache(9)
• megaraid_mbox_fire_sync_cmd(9)
• megaraid_mbox_display_scb(9)
• megaraid_mbox_setup_device_map(9)
• megaraid_cmm_register(9)
• megaraid_cmm_unregister(9)
• megaraid_mbox_mm_handler(9)
• megaraid_mbox_mm_command(9)
• megaraid_mbox_mm_done(9)
• gather_hbainfo(9)
• megaraid_sysfs_alloc_resources(9)
• megaraid_sysfs_free_resources(9)
• megaraid_sysfs_get_ldmap_done(9)
• megaraid_sysfs_get_ldmap_timeout(9)
• megaraid_sysfs_get_ldmap(9)
• megaraid_mbox_app_hndl_show(9)
• megaraid_mbox_ld_show(9)

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that's the whole page, bestie — go forth and allocate responsibly 🫶✨

source: ./drivers/scsi/megaraid · October 2026 · megaraid_alloc_cmd_packets(9) — mwah, see u in the kernel logs 💋