STRUCT STRATIX10_SVC_CLIENT_MSG(9)

✨ struct stratix10_svc_client_msg — the Kernel API manual moment 💅

okay bestie, pull up a chair because we're diving into the Kernel API Manual and today's main character is struct stratix10_svc_client_msg — literally the lil' envelope a client sends over to the service. it's giving "pass the note in class" but make it firmware 🎀

🌸 NAME

struct stratix10_svc_client_msg — the message a client sends to the service. that's it, that's the whole vibe ✨

🦋 SYNOPSIS

struct stratix10_svc_client_msg {
    void *payload;
    size_t payload_length;
    void *payload_output;
    size_t payload_length_output;
    enum stratix10_svc_command_code command;
    u64 arg[3];
 };

look at her. six fields. absolutely iconic. no cap 🫶

💖 MEMBERS

• payload — the starting address of the data that needs to be processed. like, the actual goods 📦
• payload_length — how big that to-be-processed data is, in bytes. sizes matter, bestie 🌸
• payload_output — the starting address where the processed data lands. the glow-up destination ✨
• payload_length_output — the size of that processed data, in bytes. yes, another length, keep up 💅
• command — the service command. this is the "what are we even doing here" field 👑
• arg — the args that get passed via registers and not physically mapped buffers. okay so this one's special, they ride the registers instead of the memory buffet 🚌

ngl the arg thing is the detail everyone forgets, so like… don't forget it? it's u64 arg[3], three of them, register-passed, not physically mapped. iykyk 🔥

🌈 SEE ALSO

lowkey a whole friend group, fr fr 💜 — all of these live in the kernel file ./include/linux/firmware/intel/stratix10-svc-client.h:

• enum stratix10_svc_command_code(9)
• struct stratix10_svc_command_config_type(9)
• struct stratix10_svc_cb_data(9)
• struct stratix10_svc_client(9)
• stratix10_svc_request_channel_byname(9)
• stratix10_svc_free_channel(9)
• stratix10_svc_allocate_memory(9)
• stratix10_svc_free_memory(9)
• stratix10_svc_send(9)
• stratix10_svc_done(9)
• async_callback_t(9)
• stratix10_svc_add_async_client(9)
• stratix10_svc_remove_async_client(9)
• stratix10_svc_async_send(9)
• stratix10_svc_async_poll(9)
• stratix10_svc_async_done(9)

and that's the whole page, bestie 🎀 before you go: this one came from ./include/linux/firmware/intel, dated October 2026, living under the Kernel API Manual umbrella. mwah, go read the source, ily, periodt 💖✨