IPA IMMEDIATE COMMANDS(9)

🦋 IPA Immediate Commands 🦋

okay so bestie, this page is from the Kernel API Manual, section 9 — and it's literally all about the AP command TX endpoint, which is used to issue immediate commands to the IPA. 💅✨

An immediate command is generally used to request that the IPA do something other than data transfer to another endpoint. It's giving "hey IPA, do this other thing" energy instead of the usual transfer vibe. 🎀

Immediate commands are represented by GSI transactions just like other transfer requests, and they use a single GSI TRE. Each immediate command has a well-defined format, with a payload of a known length. That's what lets the transfer element's length field be used to hold the immediate command's opcode. 👑

The payload for a command lives in AP memory, and it's described by a single scatterlist entry in its transaction. Commands do not require a transaction completion callback, and they are always issued using gsi_trans_commit_wait. no cap. 🫶

🌸 SEE ALSO 🌸

• Kernel file ./drivers/net/ipa/ipa_cmd.c — go read it, iykyk 💖

and that's the page, bestie! this one comes from the source path ./drivers/net/ipa, dated October 2026, and the manual is IPA Immediate Commands(9). mwah 💋✨