New upstream version 18.08upstream/18.08

Change-Id: I32fdf5e5016556d9c0a6d88ddaf1fc468961790a
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

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;
+			}
+		}
+}