writew(0, &p->nop_cmds[next_nop]->cmd_status);
writew(make16(p->xmit_cmds[p->xmit_count]),
&p->nop_cmds[p->xmit_count]->cmd_link);
writew(0, &p->nop_cmds[next_nop]->cmd_status);
writew(make16(p->xmit_cmds[p->xmit_count]),
&p->nop_cmds[p->xmit_count]->cmd_link);