rvt_query_qp(9)

💫 rvt_query_qp(9) 💫

okay bestie, welcome to the Kernel API Manual — yes that's the manual name, we're fancy here 💅. This one's a certified short king of a manpage, but don't let the length fool you, every crumb matters. Let's get into it 🫶

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✨ NAME ✨

rvt_query_qp — literally just queries an ipbq. that's it. that's the whole vibe check 😌

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🌸 SYNOPSIS 🌸

int rvt_query_qp (struct ib_qp *ibqp , struct ib_qp_attr *attr , int
attr_mask , struct ib_qp_init_attr *init_attr );

look at that signature, it's giving "i have four arguments and i'm not afraid to use them" 🔥

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💖 ARGUMENTS 💖

• ibqp — the IB qp you wanna query, like, the actual star of the show ✨
• attr — the attr struct you fill in. you're the one doing the filling, bestie 🎀
• attr_mask — the attr mask, which gets ignored. no cap, it's just there vibing 💀
• init_attr — another struct to fill in. yep, you're filling in two. main character multitasking energy 👑

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🦋 RETURN 🦋

always 0. not sometimes, not "depends on the weather" — always. iconic consistency, honestly, we stan a predictable return value 💜

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🌈 SEE ALSO 🌈

so there's a whole friend group here, iykyk. first up: Kernel file ./drivers/infiniband/sw/rdmavt/qp.c, and then the crew:

• init_qpn_table(9), free_qpn_table(9), rvt_driver_qp_init(9), rvt_free_qp_cb(9), rvt_free_all_qps(9), rvt_qp_exit(9)
• alloc_qpn(9), rvt_clear_mr_refs(9), rvt_swqe_has_lkey(9), rvt_qp_sends_has_lkey(9), rvt_qp_acks_has_lkey(9), rvt_qp_mr_clean(9)
• rvt_remove_qp(9), rvt_alloc_rq(9), rvt_init_qp(9), _rvt_reset_qp(9), rvt_reset_qp(9), rvt_free_qpn(9)
• get_allowed_ops(9), free_ud_wq_attr(9), alloc_ud_wq_attr(9), rvt_create_qp(9), rvt_error_qp(9), rvt_modify_qp(9), rvt_destroy_qp(9)
• rvt_post_recv(9), rvt_qp_valid_operation(9), rvt_qp_is_avail(9), rvt_post_one_wr(9), rvt_post_send(9), rvt_post_srq_recv(9)
• get_rvt_head(9), rvt_get_rwqe(9), rvt_comm_est(9), rvt_add_rnr_timer(9), rvt_stop_rc_timers(9), rvt_stop_rnr_timer(9), rvt_del_timers_sync(9)
• rvt_qp_iter_init(9), rvt_qp_iter_next(9), rvt_qp_iter(9), rvt_copy_sge(9), rvt_ruc_loopback(9)

that's the whole group chat right there, go say hi 🧚

lowkey reminder: attr_mask really is ignored. don't come back here asking why your mask did nothing — the page told you first, bestie 🙈

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aaand that's a wrap! this little gem lives at ./drivers/infiniband/sw/rdmavt, and it's dated October 2026 — future queen behaviour honestly ⭐ slay, go query those qps 💅