static uint16_t nvme_create_sq(NvmeCtrl *n, NvmeRequest *req)
{
    NvmeSQueue *sq;
    NvmeCreateSq *c = (NvmeCreateSq *)&req->cmd;

    uint16_t cqid = le16_to_cpu(c->cqid);
    uint16_t sqid = le16_to_cpu(c->sqid);
    uint16_t qsize = le16_to_cpu(c->qsize);
    uint16_t qflags = le16_to_cpu(c->sq_flags);
    uint64_t prp1 = le64_to_cpu(c->prp1);

    trace_pci_nvme_create_sq(prp1, sqid, cqid, qsize, qflags);

    if (unlikely(!cqid || nvme_check_cqid(n, cqid))) {
        trace_pci_nvme_err_invalid_create_sq_cqid(cqid);
        return NVME_INVALID_CQID | NVME_DNR;
    }
    if (unlikely(!sqid || sqid > n->params.max_ioqpairs ||
        n->sq[sqid] != NULL)) {
        trace_pci_nvme_err_invalid_create_sq_sqid(sqid);
        return NVME_INVALID_QID | NVME_DNR;
    }
    if (unlikely(!qsize || qsize > NVME_CAP_MQES(ldq_le_p(&n->bar.cap)))) {
        trace_pci_nvme_err_invalid_create_sq_size(qsize);
        return NVME_MAX_QSIZE_EXCEEDED | NVME_DNR;
    }
    if (unlikely(prp1 & (n->page_size - 1))) {
        trace_pci_nvme_err_invalid_create_sq_addr(prp1);
        return NVME_INVALID_PRP_OFFSET | NVME_DNR;
    }
    if (unlikely(!(NVME_SQ_FLAGS_PC(qflags)))) {
        trace_pci_nvme_err_invalid_create_sq_qflags(NVME_SQ_FLAGS_PC(qflags));
        return NVME_INVALID_FIELD | NVME_DNR;
    }
    sq = g_malloc0(sizeof(*sq));
    nvme_init_sq(sq, n, prp1, sqid, cqid, qsize + 1);
    return NVME_SUCCESS;
}
Unknown