rvt_get_rwqe(9)

💖 rvt_get_rwqe(9) — Kernel API Manual 💖

okay so bestie, welcome to the Kernel API Manual page for rvt_get_rwqe(9). This one is short, iconic, and does exactly one thing: copy the next RWQE into the QP's RWQE. slay. ✨

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🎀 NAME 🎀

rvt_get_rwqe — copy the next RWQE into the QP's RWQE 💅

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🦋 SYNOPSIS 🦋

int rvt_get_rwqe (struct rvt_qp *qp , bool wr_id_only );

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🌸 ARGUMENTS 🌸

• qp — the QP. That's the main character right there. 👑
• wr_id_only — update qp->r_wr_id only, not qp->r_sge. Like, only that one field gets the update, bestie. 🎀

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⭐ DESCRIPTION ⭐

okay so the return situation is very much giving trio:

• Return -1 if there is a local error 😭
• Return 0 if no RWQE is available 🙈
• Otherwise return 1 🔥

And yes, the flex is real: it can be called from interrupt level. no cap, that's allowed. 🫶

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💜 SEE ALSO 💜

Kernel file ./drivers/infiniband/sw/rdmavt/qp.c — and the whole group chat is here:

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_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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💖 source/version: ./drivers/infiniband/sw/rdmavt — dated October 2026. bye bestie, go copy that RWQE correctly. 💅✨🦋