New upstream version 18.08

[deb_dpdk.git] / drivers / crypto / virtio / virtqueue.c

diff --git a/drivers/crypto/virtio/virtqueue.c b/drivers/crypto/virtio/virtqueue.c
new file mode 100644 (file)
index 0000000..fd8be58
--- /dev/null
+++ b/drivers/crypto/virtio/virtqueue.c
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 HUAWEI TECHNOLOGIES CO., LTD.
+ */
+
+#include <stdint.h>
+
+#include <rte_mbuf.h>
+#include <rte_crypto.h>
+#include <rte_malloc.h>
+
+#include "virtqueue.h"
+
+void
+virtqueue_disable_intr(struct virtqueue *vq)
+{
+       /*
+        * Set VRING_AVAIL_F_NO_INTERRUPT to hint host
+        * not to interrupt when it consumes packets
+        * Note: this is only considered a hint to the host
+        */
+       vq->vq_ring.avail->flags |= VRING_AVAIL_F_NO_INTERRUPT;
+}
+
+void
+virtqueue_detatch_unused(struct virtqueue *vq)
+{
+       struct rte_crypto_op *cop = NULL;
+
+       int idx;
+
+       if (vq != NULL)
+               for (idx = 0; idx < vq->vq_nentries; idx++) {
+                       cop = vq->vq_descx[idx].crypto_op;
+                       if (cop) {
+                               if (cop->sym->m_src)
+                                       rte_pktmbuf_free(cop->sym->m_src);
+                               if (cop->sym->m_dst)
+                                       rte_pktmbuf_free(cop->sym->m_dst);
+                               rte_crypto_op_free(cop);
+                               vq->vq_descx[idx].crypto_op = NULL;
+                       }
+               }
+}