__rxe_init_mca(9)

💖 NAME 💖

Okay so welcome to the Kernel API Manual corner, bestie — today’s main character is __rxe_init_mca(9). The NAME line is literally “initialize a new mca holding lock,” and that’s the whole vibe. 💅

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🦋 SYNOPSIS 🦋

The signature is giving exactly this, no edits, no cap:

int __rxe_init_mca (struct rxe_qp *qp , struct rxe_mcg *mcg , struct rxe_mca *mca );

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🌸 ARGUMENTS 🌸

• qp — the qp object 🫶
• mcg — the mcg object 🦋
• mca — empty space for the new mca ✨

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✨ CONTEXT ✨

🚨 Heads up, bestie: the caller must hold references on qp and mcg, hold rxe->mcg_lock, and pass memory for the new mca.

That’s the requirement. Not optional, not a suggestion, not a “we’ll figure it out later” situation. 💀

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🎀 RETURN 🎀

It returns 0 on success; otherwise, an error. Periodt. 💖

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🔥 SEE ALSO 🔥

Kernel file: ./drivers/infiniband/sw/rxe/rxe_mcast.c

The whole reference crew is here, and yes, we’re listing every single one:

• rxe_mcast_add(9) 💫
• rxe_mcast_del(9) 💫
• __rxe_insert_mcg(9) 💫
• __rxe_remove_mcg(9) 💫
• __rxe_lookup_mcg(9) 💫
• rxe_lookup_mcg(9) 💫
• __rxe_init_mcg(9) 💫
• __rxe_publish_mcg(9) 💫
• rxe_get_mcg(9) 💫
• rxe_cleanup_mcg(9) 💫
• __rxe_destroy_mcg(9) 💫
• rxe_destroy_mcg(9) 💫
• rxe_attach_mcg(9) 💫
• __rxe_cleanup_mca(9) 💫
• rxe_detach_mcg(9) 💫
• rxe_attach_mcast(9) 💫
• rxe_detach_mcast(9) 💫

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xoxo, your Unix bestie signing off from ./drivers/infiniband/sw/rxe, dated October 2026, page __rxe_init_mca(9) — slay and read your references. 💜👑