cxl_enumerate_cmds(9)

💅 cxl_enumerate_cmds — bestie's guide to the Kernel API Manual, section 9

okay so welcome to cxl_enumerate_cmds(9), the lil function that goes "hiii which commands do u actually support" to your CXL hardware ✨ it's from the Kernel API Manual, and honestly? it's giving humble-but-essential. let's get into it 🎀

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🌸 NAME 🌸

cxl_enumerate_cmds — enumerate commands for a device. that's it. that's the whole vibe. she finds out what your device can do 💅

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✨ SYNOPSIS ✨

int cxl_enumerate_cmds (struct cxl_memdev_state *mds );

literally one argument, no drama, no cap 🫶

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🦋 ARGUMENTS 🦋

• mds — the driver data for the operation. that's the whole thing she needs, bestie, hand her the driver data and she's off 👑

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💖 DESCRIPTION 💖

returns 0 if enumerate completed successfully. yes queen, 0 means slay 🌈

so here's the tea: CXL devices have optional support for certain commands. like, not every device ships with every trick unlocked, iykyk 🙈 this function will determine the set of supported commands for the hardware and update the enabled_cmds bitmap in the mds. that bitmap is the receipts — it's literally the list of what's on and what's off for this hardware 🔥

no guessing, no assuming — she actually asks the hardware and writes down the answer. main character energy fr fr 💀

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👑 SEE ALSO 👑

• Kernel file ./drivers/cxl/core/mbox.c — cxl mbox(9)
• cxl_internal_send_cmd(9)
• cxl_payload_from_user_allowed(9)
• cxl_validate_cmd_from_user(9)
• handle_mailbox_cmd_from_user(9)
• cxl_walk_cel(9)
• cxl_mem_get_event_records(9)
• cxl_mem_get_partition_info(9)
• cxl_dev_state_identify(9)
• cxl_mem_sanitize(9)

like a whole friend group of mailbox functions, go say hi to all of them 🧚💜

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and that's the page!! source is ./drivers/cxl/core, dated October 2026, cxl_enumerate_cmds(9), kernel API manual, section 9 — mwah, thanks for reading bestie, go enumerate some commands 💅🍓⭐