mana_gd_send_request
int mana_gd_send_request(struct gdma_context *gc, uint32_t req_len,
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
err = mana_gd_send_request(gc, sizeof(req), &req,
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp),
err = mana_gd_send_request(gc, req_msg_size, req, sizeof(resp), &resp);
err = mana_gd_send_request(gc, in_len, in_buf, out_len,