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authorNeale Ranns <nranns@cisco.com>2018-09-13 08:45:12 -0700
committerDamjan Marion <dmarion@me.com>2018-09-14 18:21:43 +0000
commitef90ed08fbcde7535b4a789349b39dc25798c77d (patch)
tree4d36c0fa1ddd39700c4979dbc12366a78a4175a5 /src/vnet/bier/bier_fwd.h
parentccf444d50253325bd8a7b0dddc2f34f5586b5e45 (diff)
BIER API and load-balancing fixes
Change-Id: Ibda19d786070c942c75016ab568c8361de2f24af Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/bier/bier_fwd.h')
-rw-r--r--src/vnet/bier/bier_fwd.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/src/vnet/bier/bier_fwd.h b/src/vnet/bier/bier_fwd.h
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index 00000000000..3b0b93b4baf
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+++ b/src/vnet/bier/bier_fwd.h
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+/*
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * 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 __BIER_FWD_H__
+#define __BIER_FWD_H__
+
+#include <vnet/bier/bier_types.h>
+#include <vnet/bier/bier_hdr_inlines.h>
+
+static_always_inline u32
+bier_compute_flow_hash (const bier_hdr_t *hdr)
+{
+ u32 first_word = clib_net_to_host_u32(hdr->bh_first_word);
+
+ return ((first_word &
+ BIER_HDR_ENTROPY_FIELD_MASK) >>
+ BIER_HDR_ENTROPY_FIELD_SHIFT);
+}
+
+#endif