rvt_qp_valid_operation(9)

🎀 NAME 🎀

rvt_qp_valid_operation — validate post send wr request. This page is from the Kernel API Manual, and it’s giving “quick little validation moment before the send wr goes anywhere.” ✨

🌈 SYNOPSIS 🌈

int rvt_qp_valid_operation (struct rvt_qp *qp , const struct
       rvt_operation_params *post_parms , const struct ib_send_wr *wr );

🫶 ARGUMENTS 🫶

• qp — the qp. That’s the one, bestie.
• post_parms — the post send table for the driver. Driver’s table, driver’s rules.
• wr — the work request. The wr in question, front and center.

💅 DESCRIPTION 💅

Okay so this routine validates the operation based on the validation table and returns the length of the operation, which can extend beyond ib_send_bw. Operation-dependent flags key the atomic operation validation. 🔥

There is an exception for UD qps: it validates the pd and overrides the length to include the additional UD-specific length. UD representation, we love to see it. 🌸

Returns a negative error or the length of the work request for building the swqe. That’s the return vibe: negative error, or the swqe-building length. Periodt. 👑

🔗 SEE ALSO 🔗

Kernel file ./drivers/infiniband/sw/rdmavt/qp.c is the home base, and the whole squad is:

• 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_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)

kisses from source/version ./drivers/infiniband/sw/rdmavt, dated October 2026, and this page is rvt_qp_valid_operation(9) — bye bestie 💖✨