rvt_qp_is_avail(9)

rvt_qp_is_avail(9) 🌸

okay bestie, welcome to the Kernel API Manual page for rvt_qp_is_avail — it's literally about determining queue capacity, and we're gonna get into it 💅

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🎀 NAME 🎀

rvt_qp_is_avail — determine queue capacity. that's the whole mission, no cap ✨

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✨ SYNOPSIS ✨

int rvt_qp_is_avail (struct rvt_qp *qp , struct rvt_dev_info *rdi , bool
reserved_op );

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💅 ARGUMENTS 💅

• qp — the qp, obviously 🫶
• rdi — the rdmavt device
• reserved_op — is reserved operation, so it tells you whether this is a reserved op or not

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🦋 DESCRIPTION 🦋

Heads up, bestie: this assumes the s_hlock is held, but the s_last qp variable is uncontrolled. that's the setup, okay? 😭

For non reserved operations, the qp->s_avail may be changed. lowkey important.

The return value is zero or a -ENOMEM. that's the whole return vibe, periodt 💀

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🌈 SEE ALSO 🌈

Kernel file ./drivers/infiniband/sw/rdmavt/qp.c — go read it if you're curious, iykyk 👑

• 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_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)

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and that's the tea ☕ footer vibe: source/version ./drivers/infiniband/sw/rdmavt, dated October 2026, page rvt_qp_is_avail(9). bye bestie 🫶💖