C++ (Cpp) __flow_hash_3words примеры использования

Пример #1

Файл: flow_dissector.c Проект: Cartmanfku/ovs

u32 __skb_get_hash(struct sk_buff *skb)
{
	struct flow_keys keys;
	u32 hash;

	if (!skb_flow_dissect(skb, &keys))
		return 0;

	/* get a consistent hash (same value on both flow directions) */
	if (((__force u32)keys.dst < (__force u32)keys.src) ||
	    (((__force u32)keys.dst == (__force u32)keys.src) &&
	     ((__force u16)keys.port16[1] < (__force u16)keys.port16[0]))) {
		swap(keys.dst, keys.src);
		swap(keys.port16[0], keys.port16[1]);
	}

	hash = __flow_hash_3words((__force u32)keys.dst,
				  (__force u32)keys.src,
				  (__force u32)keys.ports);
	if (!hash)
		hash = 1;

#ifdef HAVE_RXHASH
	skb->rxhash = hash;
#endif
	return hash;
}

Пример #2

Файл: flow_dissector.c Проект: sztablet2016/Android-kernel-msm-3.10

static inline u32 __flow_hash_from_keys(struct flow_keys *keys)
{
	u32 hash;

	/* get a consistent hash (same value on both flow directions) */
	if (((__force u32)keys->dst < (__force u32)keys->src) ||
	    (((__force u32)keys->dst == (__force u32)keys->src) &&
	     ((__force u16)keys->port16[1] < (__force u16)keys->port16[0]))) {
		swap(keys->dst, keys->src);
		swap(keys->port16[0], keys->port16[1]);
	}

	hash = __flow_hash_3words((__force u32)keys->dst,
				  (__force u32)keys->src,
				  (__force u32)keys->ports);
	if (!hash)
		hash = 1;

	return hash;
}