+
+static uint8_t
+prepare_sym_chain_op(struct vhost_crypto *vcrypto, struct rte_crypto_op *op,
+ struct vhost_crypto_data_req *vc_req,
+ struct virtio_crypto_alg_chain_data_req *chain,
+ struct vring_desc *cur_desc,
+ uint32_t *nb_descs, uint32_t vq_size)
+{
+ struct vring_desc *desc = cur_desc, *digest_desc;
+ struct vhost_crypto_writeback_data *ewb = NULL, *ewb2 = NULL;
+ struct rte_mbuf *m_src = op->sym->m_src, *m_dst = op->sym->m_dst;
+ uint8_t *iv_data = rte_crypto_op_ctod_offset(op, uint8_t *, IV_OFFSET);
+ uint32_t digest_offset;
+ void *digest_addr;
+ uint8_t ret = 0;
+
+ /* prepare */
+ /* iv */
+ if (unlikely(copy_data(iv_data, vc_req, &desc,
+ chain->para.iv_len, nb_descs, vq_size) < 0)) {
+ ret = VIRTIO_CRYPTO_BADMSG;
+ goto error_exit;
+ }
+
+ m_src->data_len = chain->para.src_data_len;
+
+ switch (vcrypto->option) {
+ case RTE_VHOST_CRYPTO_ZERO_COPY_ENABLE:
+ m_dst->data_len = chain->para.dst_data_len;
+
+ m_src->buf_iova = gpa_to_hpa(vcrypto->dev, desc->addr,
+ chain->para.src_data_len);
+ m_src->buf_addr = get_data_ptr(vc_req, desc, VHOST_ACCESS_RO);
+ if (unlikely(m_src->buf_iova == 0 || m_src->buf_addr == NULL)) {
+ VC_LOG_ERR("zero_copy may fail due to cross page data");
+ ret = VIRTIO_CRYPTO_ERR;
+ goto error_exit;
+ }
+
+ if (unlikely(move_desc(vc_req->head, &desc,
+ chain->para.src_data_len,
+ nb_descs, vq_size) < 0)) {
+ VC_LOG_ERR("Incorrect descriptor");
+ ret = VIRTIO_CRYPTO_ERR;
+ goto error_exit;
+ }
+ break;
+ case RTE_VHOST_CRYPTO_ZERO_COPY_DISABLE:
+ vc_req->wb_pool = vcrypto->wb_pool;
+
+ if (unlikely(chain->para.src_data_len >
+ RTE_MBUF_DEFAULT_BUF_SIZE)) {
+ VC_LOG_ERR("Not enough space to do data copy");
+ ret = VIRTIO_CRYPTO_ERR;
+ goto error_exit;
+ }
+ if (unlikely(copy_data(rte_pktmbuf_mtod(m_src, uint8_t *),
+ vc_req, &desc, chain->para.src_data_len,
+ nb_descs, vq_size) < 0)) {
+ ret = VIRTIO_CRYPTO_BADMSG;
+ goto error_exit;
+ }
+
+ break;
+ default:
+ ret = VIRTIO_CRYPTO_BADMSG;
+ goto error_exit;
+ }
+
+ /* dst */
+ desc = find_write_desc(vc_req->head, desc, nb_descs, vq_size);
+ if (unlikely(!desc)) {
+ VC_LOG_ERR("Cannot find write location");
+ ret = VIRTIO_CRYPTO_BADMSG;
+ goto error_exit;
+ }
+
+ switch (vcrypto->option) {
+ case RTE_VHOST_CRYPTO_ZERO_COPY_ENABLE:
+ m_dst->buf_iova = gpa_to_hpa(vcrypto->dev,
+ desc->addr, chain->para.dst_data_len);
+ m_dst->buf_addr = get_data_ptr(vc_req, desc, VHOST_ACCESS_RW);
+ if (unlikely(m_dst->buf_iova == 0 || m_dst->buf_addr == NULL)) {
+ VC_LOG_ERR("zero_copy may fail due to cross page data");
+ ret = VIRTIO_CRYPTO_ERR;
+ goto error_exit;
+ }
+
+ if (unlikely(move_desc(vc_req->head, &desc,
+ chain->para.dst_data_len,
+ nb_descs, vq_size) < 0)) {
+ VC_LOG_ERR("Incorrect descriptor");
+ ret = VIRTIO_CRYPTO_ERR;
+ goto error_exit;
+ }
+
+ op->sym->auth.digest.phys_addr = gpa_to_hpa(vcrypto->dev,
+ desc->addr, chain->para.hash_result_len);
+ op->sym->auth.digest.data = get_data_ptr(vc_req, desc,
+ VHOST_ACCESS_RW);
+ if (unlikely(op->sym->auth.digest.phys_addr == 0)) {
+ VC_LOG_ERR("zero_copy may fail due to cross page data");
+ ret = VIRTIO_CRYPTO_ERR;
+ goto error_exit;
+ }
+
+ if (unlikely(move_desc(vc_req->head, &desc,
+ chain->para.hash_result_len,
+ nb_descs, vq_size) < 0)) {
+ VC_LOG_ERR("Incorrect descriptor");
+ ret = VIRTIO_CRYPTO_ERR;
+ goto error_exit;
+ }
+
+ break;
+ case RTE_VHOST_CRYPTO_ZERO_COPY_DISABLE:
+ vc_req->wb = prepare_write_back_data(vc_req, &desc, &ewb,
+ rte_pktmbuf_mtod(m_src, uint8_t *),
+ chain->para.cipher_start_src_offset,
+ chain->para.dst_data_len -
+ chain->para.cipher_start_src_offset,
+ nb_descs, vq_size);
+ if (unlikely(vc_req->wb == NULL)) {
+ ret = VIRTIO_CRYPTO_ERR;
+ goto error_exit;
+ }
+
+ digest_offset = m_src->data_len;
+ digest_addr = rte_pktmbuf_mtod_offset(m_src, void *,
+ digest_offset);
+ digest_desc = desc;
+
+ /** create a wb_data for digest */
+ ewb->next = prepare_write_back_data(vc_req, &desc, &ewb2,
+ digest_addr, 0, chain->para.hash_result_len,
+ nb_descs, vq_size);
+ if (unlikely(ewb->next == NULL)) {
+ ret = VIRTIO_CRYPTO_ERR;
+ goto error_exit;
+ }
+
+ if (unlikely(copy_data(digest_addr, vc_req, &digest_desc,
+ chain->para.hash_result_len,
+ nb_descs, vq_size) < 0)) {
+ ret = VIRTIO_CRYPTO_BADMSG;
+ goto error_exit;
+ }
+
+ op->sym->auth.digest.data = digest_addr;
+ op->sym->auth.digest.phys_addr = rte_pktmbuf_iova_offset(m_src,
+ digest_offset);
+ break;
+ default:
+ ret = VIRTIO_CRYPTO_BADMSG;
+ goto error_exit;
+ }
+
+ /* record inhdr */
+ vc_req->inhdr = get_data_ptr(vc_req, desc, VHOST_ACCESS_WO);
+ if (unlikely(vc_req->inhdr == NULL)) {
+ ret = VIRTIO_CRYPTO_BADMSG;
+ goto error_exit;
+ }
+
+ vc_req->inhdr->status = VIRTIO_CRYPTO_OK;
+
+ op->type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
+ op->sess_type = RTE_CRYPTO_OP_WITH_SESSION;
+
+ op->sym->cipher.data.offset = chain->para.cipher_start_src_offset;
+ op->sym->cipher.data.length = chain->para.src_data_len -
+ chain->para.cipher_start_src_offset;
+
+ op->sym->auth.data.offset = chain->para.hash_start_src_offset;
+ op->sym->auth.data.length = chain->para.len_to_hash;
+
+ vc_req->len = chain->para.dst_data_len + chain->para.hash_result_len +
+ INHDR_LEN;
+ return 0;
+
+error_exit:
+ if (vc_req->wb)
+ free_wb_data(vc_req->wb, vc_req->wb_pool);
+ vc_req->len = INHDR_LEN;
+ return ret;
+}
+
+/**
+ * Process on descriptor
+ */
+static __rte_always_inline int
+vhost_crypto_process_one_req(struct vhost_crypto *vcrypto,
+ struct vhost_virtqueue *vq, struct rte_crypto_op *op,
+ struct vring_desc *head, uint16_t desc_idx)
+{
+ struct vhost_crypto_data_req *vc_req = rte_mbuf_to_priv(op->sym->m_src);
+ struct rte_cryptodev_sym_session *session;
+ struct virtio_crypto_op_data_req *req, tmp_req;
+ struct virtio_crypto_inhdr *inhdr;
+ struct vring_desc *desc = NULL;
+ uint64_t session_id;
+ uint64_t dlen;
+ uint32_t nb_descs = vq->size;
+ int err = 0;
+
+ vc_req->desc_idx = desc_idx;
+ vc_req->dev = vcrypto->dev;
+ vc_req->vq = vq;
+
+ if (likely(head->flags & VRING_DESC_F_INDIRECT)) {
+ dlen = head->len;
+ nb_descs = dlen / sizeof(struct vring_desc);
+ /* drop invalid descriptors */
+ if (unlikely(nb_descs > vq->size))
+ return -1;
+ desc = IOVA_TO_VVA(struct vring_desc *, vc_req, head->addr,
+ &dlen, VHOST_ACCESS_RO);
+ if (unlikely(!desc || dlen != head->len))
+ return -1;
+ desc_idx = 0;
+ head = desc;
+ } else {
+ desc = head;
+ }
+
+ vc_req->head = head;
+ vc_req->zero_copy = vcrypto->option;
+
+ req = get_data_ptr(vc_req, desc, VHOST_ACCESS_RO);
+ if (unlikely(req == NULL)) {
+ switch (vcrypto->option) {
+ case RTE_VHOST_CRYPTO_ZERO_COPY_ENABLE:
+ err = VIRTIO_CRYPTO_BADMSG;
+ VC_LOG_ERR("Invalid descriptor");
+ goto error_exit;
+ case RTE_VHOST_CRYPTO_ZERO_COPY_DISABLE:
+ req = &tmp_req;
+ if (unlikely(copy_data(req, vc_req, &desc, sizeof(*req),
+ &nb_descs, vq->size) < 0)) {
+ err = VIRTIO_CRYPTO_BADMSG;
+ VC_LOG_ERR("Invalid descriptor");
+ goto error_exit;
+ }
+ break;
+ default:
+ err = VIRTIO_CRYPTO_ERR;
+ VC_LOG_ERR("Invalid option");
+ goto error_exit;
+ }
+ } else {
+ if (unlikely(move_desc(vc_req->head, &desc,
+ sizeof(*req), &nb_descs, vq->size) < 0)) {
+ VC_LOG_ERR("Incorrect descriptor");
+ goto error_exit;
+ }
+ }
+
+ switch (req->header.opcode) {
+ case VIRTIO_CRYPTO_CIPHER_ENCRYPT:
+ case VIRTIO_CRYPTO_CIPHER_DECRYPT:
+ session_id = req->header.session_id;
+
+ /* one branch to avoid unnecessary table lookup */
+ if (vcrypto->cache_session_id != session_id) {
+ err = rte_hash_lookup_data(vcrypto->session_map,
+ &session_id, (void **)&session);
+ if (unlikely(err < 0)) {
+ err = VIRTIO_CRYPTO_ERR;
+ VC_LOG_ERR("Failed to find session %"PRIu64,
+ session_id);
+ goto error_exit;
+ }
+
+ vcrypto->cache_session = session;
+ vcrypto->cache_session_id = session_id;
+ }
+
+ session = vcrypto->cache_session;
+
+ err = rte_crypto_op_attach_sym_session(op, session);
+ if (unlikely(err < 0)) {
+ err = VIRTIO_CRYPTO_ERR;
+ VC_LOG_ERR("Failed to attach session to op");
+ goto error_exit;
+ }
+
+ switch (req->u.sym_req.op_type) {
+ case VIRTIO_CRYPTO_SYM_OP_NONE:
+ err = VIRTIO_CRYPTO_NOTSUPP;
+ break;
+ case VIRTIO_CRYPTO_SYM_OP_CIPHER:
+ err = prepare_sym_cipher_op(vcrypto, op, vc_req,
+ &req->u.sym_req.u.cipher, desc,
+ &nb_descs, vq->size);
+ break;
+ case VIRTIO_CRYPTO_SYM_OP_ALGORITHM_CHAINING:
+ err = prepare_sym_chain_op(vcrypto, op, vc_req,
+ &req->u.sym_req.u.chain, desc,
+ &nb_descs, vq->size);
+ break;
+ }
+ if (unlikely(err != 0)) {
+ VC_LOG_ERR("Failed to process sym request");
+ goto error_exit;
+ }
+ break;
+ default:
+ VC_LOG_ERR("Unsupported symmetric crypto request type %u",
+ req->header.opcode);
+ goto error_exit;
+ }
+
+ return 0;
+
+error_exit:
+
+ inhdr = reach_inhdr(vc_req, desc, &nb_descs, vq->size);
+ if (likely(inhdr != NULL))
+ inhdr->status = (uint8_t)err;
+
+ return -1;
+}
+
+static __rte_always_inline struct vhost_virtqueue *
+vhost_crypto_finalize_one_request(struct rte_crypto_op *op,
+ struct vhost_virtqueue *old_vq)
+{
+ struct rte_mbuf *m_src = op->sym->m_src;
+ struct rte_mbuf *m_dst = op->sym->m_dst;
+ struct vhost_crypto_data_req *vc_req = rte_mbuf_to_priv(m_src);
+ uint16_t desc_idx;
+
+ if (unlikely(!vc_req)) {
+ VC_LOG_ERR("Failed to retrieve vc_req");
+ return NULL;
+ }
+
+ if (old_vq && (vc_req->vq != old_vq))
+ return vc_req->vq;
+
+ desc_idx = vc_req->desc_idx;
+
+ if (unlikely(op->status != RTE_CRYPTO_OP_STATUS_SUCCESS))
+ vc_req->inhdr->status = VIRTIO_CRYPTO_ERR;
+ else {
+ if (vc_req->zero_copy == 0)
+ write_back_data(vc_req);
+ }
+
+ vc_req->vq->used->ring[desc_idx].id = desc_idx;
+ vc_req->vq->used->ring[desc_idx].len = vc_req->len;
+
+ rte_mempool_put(m_src->pool, (void *)m_src);
+
+ if (m_dst)
+ rte_mempool_put(m_dst->pool, (void *)m_dst);
+
+ return vc_req->vq;
+}
+
+static __rte_always_inline uint16_t
+vhost_crypto_complete_one_vm_requests(struct rte_crypto_op **ops,
+ uint16_t nb_ops, int *callfd)
+{
+ uint16_t processed = 1;
+ struct vhost_virtqueue *vq, *tmp_vq;
+
+ if (unlikely(nb_ops == 0))
+ return 0;
+
+ vq = vhost_crypto_finalize_one_request(ops[0], NULL);
+ if (unlikely(vq == NULL))
+ return 0;
+ tmp_vq = vq;
+
+ while ((processed < nb_ops)) {
+ tmp_vq = vhost_crypto_finalize_one_request(ops[processed],
+ tmp_vq);
+
+ if (unlikely(vq != tmp_vq))
+ break;
+
+ processed++;
+ }
+
+ *callfd = vq->callfd;
+
+ *(volatile uint16_t *)&vq->used->idx += processed;
+
+ return processed;
+}
+
+int
+rte_vhost_crypto_create(int vid, uint8_t cryptodev_id,
+ struct rte_mempool *sess_pool,
+ struct rte_mempool *sess_priv_pool,
+ int socket_id)
+{
+ struct virtio_net *dev = get_device(vid);
+ struct rte_hash_parameters params = {0};
+ struct vhost_crypto *vcrypto;
+ char name[128];
+ int ret;
+
+ if (!dev) {
+ VC_LOG_ERR("Invalid vid %i", vid);
+ return -EINVAL;
+ }
+
+ ret = rte_vhost_driver_set_features(dev->ifname,
+ VIRTIO_CRYPTO_FEATURES);
+ if (ret < 0) {
+ VC_LOG_ERR("Error setting features");
+ return -1;
+ }
+
+ vcrypto = rte_zmalloc_socket(NULL, sizeof(*vcrypto),
+ RTE_CACHE_LINE_SIZE, socket_id);
+ if (!vcrypto) {
+ VC_LOG_ERR("Insufficient memory");
+ return -ENOMEM;
+ }
+
+ vcrypto->sess_pool = sess_pool;
+ vcrypto->sess_priv_pool = sess_priv_pool;
+ vcrypto->cid = cryptodev_id;
+ vcrypto->cache_session_id = UINT64_MAX;
+ vcrypto->last_session_id = 1;
+ vcrypto->dev = dev;
+ vcrypto->option = RTE_VHOST_CRYPTO_ZERO_COPY_DISABLE;
+
+ snprintf(name, 127, "HASH_VHOST_CRYPT_%u", (uint32_t)vid);
+ params.name = name;
+ params.entries = VHOST_CRYPTO_SESSION_MAP_ENTRIES;
+ params.hash_func = rte_jhash;
+ params.key_len = sizeof(uint64_t);
+ params.socket_id = socket_id;
+ vcrypto->session_map = rte_hash_create(¶ms);
+ if (!vcrypto->session_map) {
+ VC_LOG_ERR("Failed to creath session map");
+ ret = -ENOMEM;
+ goto error_exit;
+ }
+
+ snprintf(name, 127, "MBUF_POOL_VM_%u", (uint32_t)vid);
+ vcrypto->mbuf_pool = rte_pktmbuf_pool_create(name,
+ VHOST_CRYPTO_MBUF_POOL_SIZE, 512,
+ sizeof(struct vhost_crypto_data_req),
+ RTE_MBUF_DEFAULT_DATAROOM * 2 + RTE_PKTMBUF_HEADROOM,
+ rte_socket_id());
+ if (!vcrypto->mbuf_pool) {
+ VC_LOG_ERR("Failed to creath mbuf pool");
+ ret = -ENOMEM;
+ goto error_exit;
+ }
+
+ snprintf(name, 127, "WB_POOL_VM_%u", (uint32_t)vid);
+ vcrypto->wb_pool = rte_mempool_create(name,
+ VHOST_CRYPTO_MBUF_POOL_SIZE,
+ sizeof(struct vhost_crypto_writeback_data),
+ 128, 0, NULL, NULL, NULL, NULL,
+ rte_socket_id(), 0);
+ if (!vcrypto->wb_pool) {
+ VC_LOG_ERR("Failed to creath mempool");
+ ret = -ENOMEM;
+ goto error_exit;
+ }
+
+ dev->extern_data = vcrypto;
+ dev->extern_ops.pre_msg_handle = NULL;
+ dev->extern_ops.post_msg_handle = vhost_crypto_msg_post_handler;
+
+ return 0;
+
+error_exit:
+ if (vcrypto->session_map)
+ rte_hash_free(vcrypto->session_map);
+ if (vcrypto->mbuf_pool)
+ rte_mempool_free(vcrypto->mbuf_pool);
+
+ rte_free(vcrypto);
+
+ return ret;
+}
+
+int
+rte_vhost_crypto_free(int vid)
+{
+ struct virtio_net *dev = get_device(vid);
+ struct vhost_crypto *vcrypto;
+
+ if (unlikely(dev == NULL)) {
+ VC_LOG_ERR("Invalid vid %i", vid);
+ return -EINVAL;
+ }
+
+ vcrypto = dev->extern_data;
+ if (unlikely(vcrypto == NULL)) {
+ VC_LOG_ERR("Cannot find required data, is it initialized?");
+ return -ENOENT;
+ }
+
+ rte_hash_free(vcrypto->session_map);
+ rte_mempool_free(vcrypto->mbuf_pool);
+ rte_mempool_free(vcrypto->wb_pool);
+ rte_free(vcrypto);
+
+ dev->extern_data = NULL;
+ dev->extern_ops.pre_msg_handle = NULL;
+ dev->extern_ops.post_msg_handle = NULL;
+
+ return 0;
+}
+
+int
+rte_vhost_crypto_set_zero_copy(int vid, enum rte_vhost_crypto_zero_copy option)
+{
+ struct virtio_net *dev = get_device(vid);
+ struct vhost_crypto *vcrypto;
+
+ if (unlikely(dev == NULL)) {
+ VC_LOG_ERR("Invalid vid %i", vid);
+ return -EINVAL;
+ }
+
+ if (unlikely((uint32_t)option >=
+ RTE_VHOST_CRYPTO_MAX_ZERO_COPY_OPTIONS)) {
+ VC_LOG_ERR("Invalid option %i", option);
+ return -EINVAL;
+ }
+
+ vcrypto = (struct vhost_crypto *)dev->extern_data;
+ if (unlikely(vcrypto == NULL)) {
+ VC_LOG_ERR("Cannot find required data, is it initialized?");
+ return -ENOENT;
+ }
+
+ if (vcrypto->option == (uint8_t)option)
+ return 0;
+
+ if (!(rte_mempool_full(vcrypto->mbuf_pool)) ||
+ !(rte_mempool_full(vcrypto->wb_pool))) {
+ VC_LOG_ERR("Cannot update zero copy as mempool is not full");
+ return -EINVAL;
+ }
+
+ if (option == RTE_VHOST_CRYPTO_ZERO_COPY_DISABLE) {
+ char name[128];
+
+ snprintf(name, 127, "WB_POOL_VM_%u", (uint32_t)vid);
+ vcrypto->wb_pool = rte_mempool_create(name,
+ VHOST_CRYPTO_MBUF_POOL_SIZE,
+ sizeof(struct vhost_crypto_writeback_data),
+ 128, 0, NULL, NULL, NULL, NULL,
+ rte_socket_id(), 0);
+ if (!vcrypto->wb_pool) {
+ VC_LOG_ERR("Failed to creath mbuf pool");
+ return -ENOMEM;
+ }
+ } else {
+ rte_mempool_free(vcrypto->wb_pool);
+ vcrypto->wb_pool = NULL;
+ }
+
+ vcrypto->option = (uint8_t)option;
+
+ return 0;
+}
+
+uint16_t
+rte_vhost_crypto_fetch_requests(int vid, uint32_t qid,
+ struct rte_crypto_op **ops, uint16_t nb_ops)
+{
+ struct rte_mbuf *mbufs[VHOST_CRYPTO_MAX_BURST_SIZE * 2];
+ struct virtio_net *dev = get_device(vid);
+ struct vhost_crypto *vcrypto;
+ struct vhost_virtqueue *vq;
+ uint16_t avail_idx;
+ uint16_t start_idx;
+ uint16_t count;
+ uint16_t i = 0;
+
+ if (unlikely(dev == NULL)) {
+ VC_LOG_ERR("Invalid vid %i", vid);
+ return 0;
+ }
+
+ if (unlikely(qid >= VHOST_MAX_QUEUE_PAIRS)) {
+ VC_LOG_ERR("Invalid qid %u", qid);
+ return 0;
+ }
+
+ vcrypto = (struct vhost_crypto *)dev->extern_data;
+ if (unlikely(vcrypto == NULL)) {
+ VC_LOG_ERR("Cannot find required data, is it initialized?");
+ return 0;
+ }
+
+ vq = dev->virtqueue[qid];
+
+ avail_idx = *((volatile uint16_t *)&vq->avail->idx);
+ start_idx = vq->last_used_idx;
+ count = avail_idx - start_idx;
+ count = RTE_MIN(count, VHOST_CRYPTO_MAX_BURST_SIZE);
+ count = RTE_MIN(count, nb_ops);
+
+ if (unlikely(count == 0))
+ return 0;
+
+ /* for zero copy, we need 2 empty mbufs for src and dst, otherwise
+ * we need only 1 mbuf as src and dst
+ */
+ switch (vcrypto->option) {
+ case RTE_VHOST_CRYPTO_ZERO_COPY_ENABLE:
+ if (unlikely(rte_mempool_get_bulk(vcrypto->mbuf_pool,
+ (void **)mbufs, count * 2) < 0)) {
+ VC_LOG_ERR("Insufficient memory");
+ return 0;
+ }
+
+ for (i = 0; i < count; i++) {
+ uint16_t used_idx = (start_idx + i) & (vq->size - 1);
+ uint16_t desc_idx = vq->avail->ring[used_idx];
+ struct vring_desc *head = &vq->desc[desc_idx];
+ struct rte_crypto_op *op = ops[i];
+
+ op->sym->m_src = mbufs[i * 2];
+ op->sym->m_dst = mbufs[i * 2 + 1];
+ op->sym->m_src->data_off = 0;
+ op->sym->m_dst->data_off = 0;
+
+ if (unlikely(vhost_crypto_process_one_req(vcrypto, vq,
+ op, head, desc_idx) < 0))
+ break;
+ }
+
+ if (unlikely(i < count))
+ rte_mempool_put_bulk(vcrypto->mbuf_pool,
+ (void **)&mbufs[i * 2],
+ (count - i) * 2);
+
+ break;
+
+ case RTE_VHOST_CRYPTO_ZERO_COPY_DISABLE:
+ if (unlikely(rte_mempool_get_bulk(vcrypto->mbuf_pool,
+ (void **)mbufs, count) < 0)) {
+ VC_LOG_ERR("Insufficient memory");
+ return 0;
+ }
+
+ for (i = 0; i < count; i++) {
+ uint16_t used_idx = (start_idx + i) & (vq->size - 1);
+ uint16_t desc_idx = vq->avail->ring[used_idx];
+ struct vring_desc *head = &vq->desc[desc_idx];
+ struct rte_crypto_op *op = ops[i];
+
+ op->sym->m_src = mbufs[i];
+ op->sym->m_dst = NULL;
+ op->sym->m_src->data_off = 0;
+
+ if (unlikely(vhost_crypto_process_one_req(vcrypto, vq,
+ op, head, desc_idx) < 0))
+ break;
+ }
+
+ if (unlikely(i < count))
+ rte_mempool_put_bulk(vcrypto->mbuf_pool,
+ (void **)&mbufs[i],
+ count - i);
+
+ break;
+
+ }
+
+ vq->last_used_idx += i;
+
+ return i;
+}
+
+uint16_t
+rte_vhost_crypto_finalize_requests(struct rte_crypto_op **ops,
+ uint16_t nb_ops, int *callfds, uint16_t *nb_callfds)
+{
+ struct rte_crypto_op **tmp_ops = ops;
+ uint16_t count = 0, left = nb_ops;
+ int callfd;
+ uint16_t idx = 0;
+
+ while (left) {
+ count = vhost_crypto_complete_one_vm_requests(tmp_ops, left,
+ &callfd);
+ if (unlikely(count == 0))
+ break;
+
+ tmp_ops = &tmp_ops[count];
+ left -= count;
+
+ callfds[idx++] = callfd;
+
+ if (unlikely(idx >= VIRTIO_CRYPTO_MAX_NUM_BURST_VQS)) {
+ VC_LOG_ERR("Too many vqs");
+ break;
+ }
+ }
+
+ *nb_callfds = idx;
+
+ return nb_ops - left;
+}