[dpdk-dev] [PATCH 08/18] net: add Mpls header structure
Olivier Matz
olivier.matz at 6wind.com
Tue Jul 5 17:41:40 CEST 2016
Add the Mpls header structure in librte_net. It will be used by next
patches that adds the support of Mpls L2 layer in the software packet
type parser.
Signed-off-by: Olivier Matz <olivier.matz at 6wind.com>
---
lib/librte_net/rte_mpls.h | 64 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 64 insertions(+)
create mode 100644 lib/librte_net/rte_mpls.h
diff --git a/lib/librte_net/rte_mpls.h b/lib/librte_net/rte_mpls.h
new file mode 100644
index 0000000..bf8c6cc
--- /dev/null
+++ b/lib/librte_net/rte_mpls.h
@@ -0,0 +1,64 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright 2016 6WIND S.A.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RTE_MPLS_H_
+#define _RTE_MPLS_H_
+
+#include <stdint.h>
+#include <rte_byteorder.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * MPLS Header
+ */
+struct mpls_hdr {
+ uint16_t tag_msb; /**< Label(msb). */
+#if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
+ uint8_t tag_lsb:4; /**< Label(lsb). */
+ uint8_t tc:3; /**< Traffic class. */
+ uint8_t bs:1; /**< Bottom of stack. */
+#else
+ uint8_t bs:1; /**< Bottom of stack. */
+ uint8_t tc:3; /**< Traffic class. */
+ uint8_t tag_lsb:4; /**< label(lsb) */
+#endif
+ uint8_t ttl; /**< Time to live. */
+} __attribute__((__packed__));
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* RTE_MPLS_H_ */
--
2.8.1
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