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Date:	Tue, 26 Nov 2013 09:22:34 -0800 (PST)
From:	Tom Herbert <>
Subject: [PATCH v2 02/17] net: Add utility function to set the rxhash

The function skb_set_rxash was added for drivers to call to set
the rxhash in an skb. The type of hash is also specified as
a parameter (L2, L3, L4, or unknown type).

Signed-off-by: Tom Herbert <>
 include/linux/skbuff.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 76d3aa9..25f190e 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -703,6 +703,20 @@ unsigned int skb_find_text(struct sk_buff *skb, unsigned int from,
 			   unsigned int to, struct ts_config *config,
 			   struct ts_state *state);
+enum rxhash_types {
+	RXHASH_TYPE_NONE,	/* Undefined type */
+	RXHASH_TYPE_L2,		/* Uses L2 information (addresses) */
+	RXHASH_TYPE_L3,		/* Uses L3 information */
+	RXHASH_TYPE_L4,		/* Uses L4 information (ports) */
+static inline void
+skb_set_rxhash(struct sk_buff *skb, __u32 hash, enum rxhash_types type)
+	skb->l4_rxhash = (type == RXHASH_TYPE_L4);
+	skb->rxhash = hash;
 void __skb_get_rxhash(struct sk_buff *skb);
 static inline __u32 skb_get_rxhash(struct sk_buff *skb)

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