ibv_wr_send_imm(3) on Linux
The text e3feb8b15757, as Debian 11 (Bullseye) shipped it.
Manage regions allowed to post work ibv_wr_atomic_cmp_swp, ibv_wr_atomic_fetch_add - Post remote atomic operation work requests ibv_wr_bind_mw, ibv_wr_local_inv - Post work requests for memory windows ibv_wr_rdma_read, ibv_wr_rdma_write, ibv_wr_rdma_write_imm - Post RDMA work requests ibv_wr_send, ibv_wr_send_imm, ibv_wr_send_inv - Post send work requests ibv_wr_send_tso - Post segmentation offload work requests ibv_wr_set_inline_data, ibv_wr_set_inline_data_list - Attach inline data to the last work request ibv_wr_set_sge, ibv_wr_set_sge_list - Attach data to the last work request ibv_wr_set_ud_addr - Attach UD addressing info to the last work request ibv_wr_set_xrc_srqn - Attach an XRC SRQN to the last work request