1 files changed, 78 insertions, 0 deletions

diff --git a/VNFs/DPPD-PROX/handle_read.c b/VNFs/DPPD-PROX/handle_read.c
new file mode 100644
index 00000000..9a06a2b1
--- /dev/null
+++ b/VNFs/DPPD-PROX/handle_read.c
@@ -0,0 +1,78 @@
+/*
+// Copyright (c) 2010-2017 Intel Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+*/
+
+#include <rte_ip.h>
+
+#include "task_base.h"
+#include "task_init.h"
+#include "defines.h"
+#include "prefetch.h"
+#include "log.h"
+
+struct task_read {
+	struct task_base    base;
+};
+
+static int handle_read_bulk(struct task_base *tbase, struct rte_mbuf **mbufs, uint16_t n_pkts)
+{
+	struct task_read *task = (struct task_read *)tbase;
+	uint8_t out[MAX_PKT_BURST];
+	uint16_t j;
+	uint64_t *first;
+
+#ifdef PROX_PREFETCH_OFFSET
+	for (j = 0; j < PROX_PREFETCH_OFFSET && j < n_pkts; ++j) {
+		PREFETCH0(mbufs[j]);
+	}
+	for (j = 1; j < PROX_PREFETCH_OFFSET && j < n_pkts; ++j) {
+		PREFETCH0(rte_pktmbuf_mtod(mbufs[j - 1], void *));
+	}
+#endif
+	for (j = 0; j + PREFETCH_OFFSET < n_pkts; ++j) {
+#ifdef PROX_PREFETCH_OFFSET
+		PREFETCH0(mbufs[j + PREFETCH_OFFSET]);
+		PREFETCH0(rte_pktmbuf_mtod(mbufs[j + PREFETCH_OFFSET - 1], void *));
+#endif
+		first = rte_pktmbuf_mtod(mbufs[j], uint64_t *);
+		out[j] = *first != 0? 0: OUT_DISCARD;
+	}
+#ifdef PROX_PREFETCH_OFFSET
+	prefetch_nta(rte_pktmbuf_mtod(mbufs[n_pkts - 1], void *));
+	for (; j < n_pkts; ++j) {
+		first = rte_pktmbuf_mtod(mbufs[j], uint64_t *);
+		out[j] = *first != 0? 0: OUT_DISCARD;
+	}
+#endif
+
+	return task->base.tx_pkt(&task->base, mbufs, n_pkts, out);
+}
+
+static void init_task_read(__attribute__((unused)) struct task_base *tbase,
+			   __attribute__((unused)) struct task_args *targ)
+{
+}
+
+static struct task_init task_init_read = {
+	.mode_str = "read",
+	.init = init_task_read,
+	.handle = handle_read_bulk,
+	.size = sizeof(struct task_read)
+};
+
+__attribute__((constructor)) static void reg_task_read(void)
+{
+	reg_task(&task_init_read);
+}