Add types for NTR selection method

NTR selection method
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>

include/openflow/automake.mk

@@ -1,5 +1,6 @@
 openflowincludedir = $(includedir)/openflow
 openflowinclude_HEADERS = \
+	include/openflow/netronome-ext.h \
 	include/openflow/nicira-ext.h \
 	include/openflow/openflow-1.0.h \
 	include/openflow/openflow-1.1.h \

include/openflow/netronome-ext.h

@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2014 Netronome.
+ *
+ * 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.
+ */
+
+#ifndef OPENFLOW_NETRONOME_EXT_H
+#define OPENFLOW_NETRONOME_EXT_H 1
+
+#include "openflow/openflow.h"
+#include "openvswitch/types.h"
+
+/* The following vendor extension, proposed by Netronome, is not yet
+ * standardized, so they are not included in openflow.h.  It may
+ * be suitable for standardization */
+
+
+/* Netronome enhanced select group */
+
+enum ntr_group_mod_subtype {
+        NTRT_SELECTION_METHOD = 1,
+};
+
+#define NTR_MAX_SELECTION_METHOD_LEN 16
+
+struct ntr_group_prop_selection_method {
+    ovs_be16 type;                  /* OFPGPT15_EXPERIMENTER. */
+    ovs_be16 length;                /* Length in bytes of this property
+                                     * excluding trailing padding. */
+    ovs_be32 experimenter;          /* NTR_VENDOR_ID. */
+    ovs_be32 exp_type;              /* NTRT_SELECTION_METHOD. */
+    ovs_be32 pad;
+    char selection_method[NTR_MAX_SELECTION_METHOD_LEN];
+                                    /* Null-terminated */
+    ovs_be64 selection_method_param;  /* Non-Field parameter for
+                                       * bucket selection. */
+
+    /* Followed by:
+     *   - Exactly (length - 40) (possibly 0) bytes containing OXM TLVs, then
+     *   - Exactly ((length + 7)/8*8 - length) (between 0 and 7) bytes of
+     *     all-zero bytes
+     * In summary, ntr_group_prop_selection_method is padded as needed,
+     * to make its overall size a multiple of 8, to preserve alignment
+     * in structures using it.
+     */
+    /* uint8_t field_array[0]; */   /* Zero or more fields encoded as
+                                     * OXM TLVs where the has_mask bit must
+                                     * be zero and the value it specifies is
+                                     * a mask to apply to packet fields and
+                                     * then input them to the selection
+                                     * method of a select group. */
+    /* uint8_t pad2[0]; */
+};
+OFP_ASSERT(sizeof(struct ntr_group_prop_selection_method) == 40);
+
+#endif /* openflow/netronome-ext.h */