rvt_add_rnr_timer(9)

💅 rvt_add_rnr_timer — or, the little kernel page you're reading rn

okay so bestie, welcome to the rvt_add_rnr_timer man page, from the Kernel API Manual (yes, the kernel has a manual, and yes it's iconic). This one is short and sweet, so let's get into it ✨

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🌸 NAME 🌸

rvt_add_rnr_timer — adds/starts an rnr timer on the QP. that's it, that's the whole vibe. no cap.

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🦋 SYNOPSIS 🦋

here's the whole signature, copy it exactly bestie:

void rvt_add_rnr_timer (struct rvt_qp *qp , u32 aeth );

it returns void, so nothing comes back out — it just does the thing. main character energy fr 💅

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🎀 ARGUMENTS 🎀

• qp — the QP. literally the queue pair we're doing this to, that's the whole description, we love a concise queen 👑
• aeth — the aeth of the RNR timeout, and for loopback it's a simulated aeth. yes, simulated. loopback gets the knockoff version and honestly? relatable 🙈

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💖 SEE ALSO 💖

okay this is the part where the page just dumps the entire friend group on you 😭 but we're listing every single one, no skipping, no summarising, because every link is a bestie:

• 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_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_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)

and yeah, rvt_stop_rnr_timer(9) is literally right there in the list — the start and the stop, a whole arc, we stan a balanced duo 🫶

ngl the _rvt_reset_qp(9) vs rvt_reset_qp(9) situation is giving "private account vs public account" and iykyk 💀

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🌈 the sign-off 🌈

this page lives in ./drivers/infiniband/sw/rdmavt, and it's dated October 2026 — yes, the future, she's ahead of her time ⭐ so that's the source, the version and the date all wrapped up with a bow 🎀 bye bestie, go start that timer 💜