ibmvmc_send_rem_buffer_resp(9)

💅 ibmvmc_send_rem_buffer_resp — Kernel API Manual ✨

okay bestie, so this is a page from the Kernel API Manual, and the function we're stanning today is ibmvmc_send_rem_buffer_resp(9). it's giving "polite little reply message," and honestly? she ate. let's get into it 🫶

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🌸 NAME 🌸

ibmvmc_send_rem_buffer_resp — Remove Buffer Response. that's literally her whole job, no cap.

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✨ SYNOPSIS ✨

int ibmvmc_send_rem_buffer_resp (struct crq_server_adapter *adapter , u8
status , u8 hmc_session , u8 hmc_index , u16 buffer_id );

like yes, the signature is long, but she's worth it 💖

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🎀 ARGUMENTS 🎀

• adapter — the crq_server_adapter struct. the whole lil' context object. iconic.
• status — the Status field. this is where you say how it went 👀
• hmc_session — the HMC Session field.
• hmc_index — the HMC Index field.
• buffer_id — the Buffer Id field. the actual star of the show 🦋

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🦋 DESCRIPTION 🦋

so, plot twist: this command isn't sent by just anybody. it's sent by the management partition to the hypervisor, and it's a reply — specifically, it goes out in response to the Remove Buffer message. it's giving "thank you for your message, here's my answer 💌".

and the fields? oh they're doing WORK:

• the Buffer ID field tells everyone which buffer the management partition picked to remove. she chose. she committed. periodt.
• the Status field carries the result of the command, i.e. how the whole thing went down.

ngl, she's a response message, so don't expect her to start the conversation — the Remove Buffer message has to come first. facts.

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🔥 RETURN 🔥

• 0 — Success. slay. no notes. 👑

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🌈 SEE ALSO 🌈

the whole extended friend group lives in the kernel file ./drivers/misc/ibmvmc.c, and they're all here, fr fr:

• h_request_vmc(9), ibmvmc_handle_event(9), ibmvmc_release_crq_queue(9), ibmvmc_reset_crq_queue(9), crq_queue_next_crq(9), ibmvmc_send_crq(9)
• alloc_dma_buffer(9), free_dma_buffer(9), ibmvmc_get_valid_hmc_buffer(9), ibmvmc_get_free_hmc_buffer(9), ibmvmc_free_hmc_buffer(9), ibmvmc_count_hmc_buffers(9)
• ibmvmc_get_free_hmc(9), ibmvmc_return_hmc(9), ibmvmc_send_open(9), ibmvmc_send_close(9), ibmvmc_send_capabilities(9), ibmvmc_send_add_buffer_resp(9), ibmvmc_send_msg(9)
• ibmvmc_open(9), ibmvmc_close(9), ibmvmc_read(9), ibmvmc_poll(9), ibmvmc_write(9)
• ibmvmc_setup_hmc(9), ibmvmc_ioctl_sethmcid(9), ibmvmc_ioctl_query(9), ibmvmc_ioctl_requestvmc(9), ibmvmc_ioctl(9)
• ibmvmc_add_buffer(9), ibmvmc_rem_buffer(9), ibmvmc_process_capabilities(9), ibmvmc_validate_hmc_session(9)
• ibmvmc_reset(9), ibmvmc_reset_task(9), ibmvmc_process_open_resp(9), ibmvmc_process_close_resp(9)
• ibmvmc_crq_process(9), ibmvmc_handle_crq_init(9), ibmvmc_handle_crq(9), ibmvmc_init_crq_queue(9)

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fr fr, go read ibmvmc_rem_buffer(9) if you want the other half of this convo — they're a matched set iykyk 💜

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okay that's the page!! tiny cute sign-off: this lil' beauty comes from ./drivers/misc, dated October 2026, and she's filed under ibmvmc_send_rem_buffer_resp(9). mwah 💋✨🎀