rvt_post_srq_recv(9)

🎀 rvt_post_srq_recv(9) 🎀

okay bestie, so this is a page straight out of the Kernel API Manual, and it's all about rvt_post_srq_recv — the little function that gets your receive posted on a shared receive queue. it's short, it's sweet, and honestly it's giving "small but crucial" energy. let's get into it 💅

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✨ NAME ✨

rvt_post_srq_recv — post a receive on a shared receive queue 🦋

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🌸 SYNOPSIS 🌸

int rvt_post_srq_recv (struct ib_srq *ibsrq , const struct ib_recv_wr
*wr , const struct ib_recv_wr **bad_wr );

like… the whole signature, exactly as it lives in the headers. copy it, don't touch it, periodt 💖

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💜 ARGUMENTS 💜

• ibsrq — the SRQ you're posting the receive on. this is your queue, your moment, your main character ✨
• wr — the list of work requests to post. plural! it's a whole list, not just one, and we love her for that 🫶
• bad_wr — a pointer to the first WR that causes a problem gets put in here. so if something goes wrong, this is where the drama gets reported 💀

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🔥 DESCRIPTION 🔥

so here's the little detail that matters: this may be called from interrupt context. yes, interrupt context. no cap. handle it accordingly, bestie 😭

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🌈 RETURN 🌈

0 on success, else errno. that's it. that's the whole vibe check 😌

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👑 SEE ALSO 👑

and now for the friend group — the kernel file ./drivers/infiniband/sw/rdmavt/qp.c and literally all of these iconic siblings:

• 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)
• 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)

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okay that's the whole page, ily, go post some receives responsibly 🧚💖

this little number lives over in ./drivers/infiniband/sw/rdmavt and it's dated October 2026 — so yeah, shoutout to the source, the version, and the date, they ate 🍓⭐