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path: root/drivers/crypto/virtio/virtqueue.c
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Diffstat (limited to 'drivers/crypto/virtio/virtqueue.c')
-rw-r--r--drivers/crypto/virtio/virtqueue.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/crypto/virtio/virtqueue.c b/drivers/crypto/virtio/virtqueue.c
new file mode 100644
index 00000000..fd8be581
--- /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;
+ }
+ }
+}