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| author |   Tom Herbert <tom@herbertland.com> | 2015-06-04 09:16:40 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-06-04 15:44:30 -0700 |
| commit | c3f8324188fa80178f20c8209b492ca6191177e8 (patch) | |
| tree | 7a79eea92ad702932fd81977118f6ab6394a9769 /drivers/net/bonding | |
| parent | net: Get skb hash over flow_keys structure (diff) | |
| download | linux-dev-c3f8324188fa80178f20c8209b492ca6191177e8.tar.xz linux-dev-c3f8324188fa80178f20c8209b492ca6191177e8.zip | |
net: Add full IPv6 addresses to flow_keys
This patch adds full IPv6 addresses into flow_keys and uses them as
input to the flow hash function. The implementation supports either
IPv4 or IPv6 addresses in a union, and selector is used to determine
how may words to input to jhash2.
We also add flow_get_u32_dst and flow_get_u32_src functions which are
used to get a u32 representation of the source and destination
addresses. For IPv6, ipv6_addr_hash is called. These functions retain
getting the legacy values of src and dst in flow_keys.
With this patch, Ethertype and IP protocol are now included in the
flow hash input.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bonding')
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 2268438f3f63..19eb990d398c 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -3059,8 +3059,7 @@ static bool bond_flow_dissect(struct bonding *bond, struct sk_buff *skb, if (unlikely(!pskb_may_pull(skb, noff + sizeof(*iph)))) return false; iph = ip_hdr(skb); - fk->addrs.src = iph->saddr; - fk->addrs.dst = iph->daddr; + iph_to_flow_copy_v4addrs(fk, iph); noff += iph->ihl << 2; if (!ip_is_fragment(iph)) proto = iph->protocol; @@ -3068,8 +3067,7 @@ static bool bond_flow_dissect(struct bonding *bond, struct sk_buff *skb, if (unlikely(!pskb_may_pull(skb, noff + sizeof(*iph6)))) return false; iph6 = ipv6_hdr(skb); - fk->addrs.src = (__force __be32)ipv6_addr_hash(&iph6->saddr); - fk->addrs.dst = (__force __be32)ipv6_addr_hash(&iph6->daddr); + iph_to_flow_copy_v6addrs(fk, iph6); noff += sizeof(*iph6); proto = iph6->nexthdr; } else { @@ -3103,7 +3101,8 @@ u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb) hash = bond_eth_hash(skb); else hash = (__force u32)flow.ports.ports; - hash ^= (__force u32)flow.addrs.dst ^ (__force u32)flow.addrs.src; + hash ^= (__force u32)flow_get_u32_dst(&flow) ^ + (__force u32)flow_get_u32_src(&flow); hash ^= (hash >> 16); hash ^= (hash >> 8); |