t4vf_wr_mbox
v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &cmd);
ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &cmd);
return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);