crypto/virtio: support basic PMD ops

[dpdk.git] / drivers / crypto / virtio / virtio_rxtx.c

diff --git a/drivers/crypto/virtio/virtio_rxtx.c b/drivers/crypto/virtio/virtio_rxtx.c
index 51f6e09..3b038a7 100644 (file)
--- a/drivers/crypto/virtio/virtio_rxtx.c
+++ b/drivers/crypto/virtio/virtio_rxtx.c
@@ -1,8 +1,76 @@
 /* SPDX-License-Identifier: BSD-3-Clause
  * Copyright(c) 2018 HUAWEI TECHNOLOGIES CO., LTD.
  */
+#include "virtqueue.h"
 #include "virtio_cryptodev.h"
 
+static int
+virtio_crypto_vring_start(struct virtqueue *vq)
+{
+       struct virtio_crypto_hw *hw = vq->hw;
+       int i, size = vq->vq_nentries;
+       struct vring *vr = &vq->vq_ring;
+       uint8_t *ring_mem = vq->vq_ring_virt_mem;
+
+       PMD_INIT_FUNC_TRACE();
+
+       vring_init(vr, size, ring_mem, VIRTIO_PCI_VRING_ALIGN);
+       vq->vq_desc_tail_idx = (uint16_t)(vq->vq_nentries - 1);
+       vq->vq_free_cnt = vq->vq_nentries;
+
+       /* Chain all the descriptors in the ring with an END */
+       for (i = 0; i < size - 1; i++)
+               vr->desc[i].next = (uint16_t)(i + 1);
+       vr->desc[i].next = VQ_RING_DESC_CHAIN_END;
+
+       /*
+        * Disable device(host) interrupting guest
+        */
+       virtqueue_disable_intr(vq);
+
+       /*
+        * Set guest physical address of the virtqueue
+        * in VIRTIO_PCI_QUEUE_PFN config register of device
+        * to share with the backend
+        */
+       if (VTPCI_OPS(hw)->setup_queue(hw, vq) < 0) {
+               VIRTIO_CRYPTO_INIT_LOG_ERR("setup_queue failed");
+               return -EINVAL;
+       }
+
+       return 0;
+}
+
+void
+virtio_crypto_ctrlq_start(struct rte_cryptodev *dev)
+{
+       struct virtio_crypto_hw *hw = dev->data->dev_private;
+
+       if (hw->cvq) {
+               virtio_crypto_vring_start(hw->cvq);
+               VIRTQUEUE_DUMP((struct virtqueue *)hw->cvq);
+       }
+}
+
+void
+virtio_crypto_dataq_start(struct rte_cryptodev *dev)
+{
+       /*
+        * Start data vrings
+        * -    Setup vring structure for data queues
+        */
+       uint16_t i;
+       struct virtio_crypto_hw *hw = dev->data->dev_private;
+
+       PMD_INIT_FUNC_TRACE();
+
+       /* Start data vring. */
+       for (i = 0; i < hw->max_dataqueues; i++) {
+               virtio_crypto_vring_start(dev->data->queue_pairs[i]);
+               VIRTQUEUE_DUMP((struct virtqueue *)dev->data->queue_pairs[i]);
+       }
+}
+
 uint16_t
 virtio_crypto_pkt_rx_burst(
        void *tx_queue __rte_unused,