static uint16_t nvme_create_sq(NvmeCtrl *n, NvmeCmd *cmd) { NvmeSQueue *sq; NvmeCreateSq *c = (NvmeCreateSq *)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); if (!cqid || nvme_check_cqid(n, cqid)) { return NVME_INVALID_CQID | NVME_DNR; } if (!sqid || !nvme_check_sqid(n, sqid)) { return NVME_INVALID_QID | NVME_DNR; } if (!qsize || qsize > NVME_CAP_MQES(n->bar.cap)) { return NVME_MAX_QSIZE_EXCEEDED | NVME_DNR; } if (!prp1 || prp1 & (n->page_size - 1)) { return NVME_INVALID_FIELD | NVME_DNR; } if (!(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; }