rvt_reset_qp(9)

💅 rvt_reset_qp(9) — like, the Kernel API Manual one, bestie

okay so real talk: this is rvt_reset_qp(9) from the Kernel API Manual, and it's honestly such a mood. it's a tiny function that does one very specific thing, and the way it does it is lowkey art. let's get into it 🫶

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✨ NAME ✨

rvt_reset_qp — initialize the QP state to the reset state. that's it, that's the whole job, and she does it flawlessly 💅

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🦋 SYNOPSIS 🦋

void rvt_reset_qp (struct rvt_dev_info *rdi , struct rvt_qp *qp , enum ib_qp_type type );

like, that's the whole signature. no return value, no drama, no notes. she's void and she's thriving ✨

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🎀 ARGUMENTS 🎀

• rdi — the device info, aka the ~vibe~ of the device you're working with. she's the main character of this call ngl.
• qp — the QP to reset. yes queen, we're resetting this one specifically.
• type — the QP type. gotta know what kind of QP we're dealing with before we do anything 🧚

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🌸 DESCRIPTION 🌸

okay so here's the tea: this is the wrapper function. and what does a wrapper do? it wraps. iconic behavior.

specifically, she goes and acquires the r_lock, the s_hlock, and the s_lock — all three, no cap — before calling _rvt_reset_qp. so like, the actual resetting happens elsewhere, but the locking? the locking is all her. she's the responsible friend who holds everyone's bags 🫶

three locks. then _rvt_reset_qp. that's the whole flow. periodt. 💖

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🔥 SEE ALSO 🔥

so like, she has a lot of friends, and honestly? same energy. here's the full squad, all from the kernel file ./drivers/infiniband/sw/rdmavt/qp.c:

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_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_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)

like, forty-plus besties. she's connected. iykyk 💀✨

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ngl the fact that the lock-acquiring part is the whole description is giving "my job here is done" energy and i respect it so much 🎀

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and that's the page, bestie 💜 — brought to you by ./drivers/infiniband/sw/rdmavt, dated October 2026, and the page itself is rvt_reset_qp(9). go forth and reset those QPs responsibly 🌈⭐