Function nvm_queue_clear

src/libnvm/queue.cpp:11–39

int nvm_queue_clear(nvm_queue_t* queue, const nvm_ctrl_t* ctrl, bool cq, uint16_t no, uint32_t qs, 
        bool local, volatile void* vaddr, uint64_t ioaddr)
{
    if (qs < 2 || qs > 0x10000 || qs > ctrl->max_qs)
    {
        return EINVAL;
    }

    queue->no = no;
    queue->qs = qs;
    queue->es = cq ? sizeof(nvm_cpl_t) : sizeof(nvm_cmd_t);
    queue->head = 0;
    queue->tail = 0;
    queue->last = 0;
    queue->phase = 1;
    queue->local = !!local;
    queue->head_lock = 0;
    queue->tail_lock = 0;
    // queue->head_copy = 0;
    // queue->tail_copy = 0;
    queue->in_ticket = 0;
    queue->cid_ticket = 0;

    queue->db = (cq ? CQ_DBL(ctrl->mm_ptr, queue->no, ctrl->dstrd) : SQ_DBL(ctrl->mm_ptr, queue->no, ctrl->dstrd));
    queue->vaddr = vaddr;
    queue->ioaddr = ioaddr;
    
    return 0;
}