vmbus_sendpacket_getid(9)

💅 vmbus_sendpacket_getid — a whole vibe (Kernel API Manual, bestie 💖)

okay so real talk, we're in the Kernel API Manual today and this little icon is called vmbus_sendpacket_getid, and it literally just sends ur buffer on the given channel. that's the whole thing. that's the errand. ✨

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🌸 NAME 🌸

vmbus_sendpacket_getid — send the specified buffer on the given channel 🫶

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✨ SYNOPSIS ✨

int vmbus_sendpacket_getid (struct vmbus_channel *channel , void *buffer
, u32 bufferlen , u64 requestid , u64 *trans_id , enum vmbus_packet_type
type , u32 flags );

look at her. seven arguments. she's got range 💅

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🎀 ARGUMENTS 🎀

• channel — pointer to a vmbus_channel struct, i.e. the channel we're sending on, bestie.
• buffer — pointer to the buffer you want to send the data from. yes, that buffer.
• bufferlen — the maximum size of what the buffer holds.
• requestid — identifier of the request. it's giving "who dis" but for requests 🪪
• trans_id — identifier of the transaction associated to this request, if the send is successful; undefined, otherwise. so like, don't go reading her before the send works out, that's not a vibe 😭
• type — type of packet that is being sent, e.g. negotiate, time packet etc.
• flags — 0 or VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED. two options. pick one. periodt.

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🔥 DESCRIPTION 🔥

sends data in buffer directly to Hyper-V via the vmbus. directly. no detours, no filter, no nothing. this will send the data unparsed to Hyper-V — like, she does not read it, she does not judge it, she just delivers it 🌈

mainly used by Hyper-V drivers. that's her main character energy right there 👑

ngl the trans_id situation is the one to keep ur eye on — it's only a real, defined transaction identifier if the send succeeds. otherwise it's undefined and u should NOT be out here treating it like it means something 💀

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🦋 SEE ALSO 🦋

• Kernel file ./drivers/hv/channel.c — her home address 🏠
• vmbus_free_buffer(9)
• vmbus_alloc_buffer(9)
• request_arr_init(9)
• vmbus_sendpacket(9)
• __vmbus_recvpacket(9)

the whole friend group honestly 🫶 go say hi.

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and that's the page, bestie 🎀 she lives in ./drivers/hv, she's dated October 2026, and the manual is Kernel API Manual — mwah, slay, go send ur packets responsibly 💖✨