rvt_modify_qp(9)

💅 rvt_modify_qp — like, the Kernel API Manual page for it ✨

okay so bestie, welcome to the rvt_modify_qp page from the Kernel API Manual — this is the one that changes up a queue pair's attributes. main character function energy fr fr 🎀

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✨ NAME ✨

rvt_modify_qp — modify the attributes of a queue pair

like literally, you're editing a QP's settings. glow-up time 💅

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🦋 SYNOPSIS 🦋

int rvt_modify_qp (struct ib_qp *ibqp , struct ib_qp_attr *attr , int
attr_mask , struct ib_udata *udata );

that return type is int btw, keep that in ur notes 📝

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🌸 ARGUMENTS 🌸

• ibqp — the queue pair who's attributes we're modifying. yes, this is the QP getting the makeover 👑
• attr — the new attributes. the fresh fit, basically ✨
• attr_mask — the mask of attributes to modify. tells everyone which parts of the fit are changing 🎀
• udata — user data for libibverbs.so. the userland bestie dropping off info 🫶

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🔥 RETURN 🔥

0 on success, otherwise returns an errno. so if u get 0 ur slaying, if not... read the errno and cope 😭

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⭐ SEE ALSO ⭐

no cap, there is a whole friend group here — and the kernel file ./drivers/infiniband/sw/rdmavt/qp.c is like the group chat everyone lives in:

• 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_destroy_qp(9)
• rvt_query_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)

iykyk 🧚 read a few of these and u will literally understand the whole QP lifecycle. it's giving study group.

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okay that's the whole page, bestie — periodt 💖

sign-off time 🎀 this one lives in ./drivers/infiniband/sw/rdmavt, it's dated October 2026, and the page is rvt_modify_qp(9) — go forth and modify those QPs responsibly 🌈💜🦋