pm24.git/net/packet, branch v3.1-rc6

af-packet: fix - avoid reading stale data

2011-07-14T15:36:33Z

Currently we flush tp_status and then flush the remainder of the header+payload. tp_status should be flushed in the end to avoid stale data being read by user-space. Incorrectly re-ordered barriers in v1. Signed-off-by: Chetan Loke Signed-off-by: David S. Miller

packet: Fix build with INET disabled.

2011-07-07T15:18:04Z

af_packet.c:(.text+0x3d130): undefined reference to `ip_defrag' or ERROR: "ip_defrag" [net/packet/af_packet.ko] undefined! Reported-by: Randy Dunlap Signed-off-by: David S. Miller

af_packet: lock imbalance

2011-07-07T13:41:29Z

fanout_add() might return with fanout_mutex held. Reduce indentation level while we are at it Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

packet: Fix leak in pre-defrag support.

2011-07-06T14:30:59Z

When we clone the SKB, we forget about the original one. Avoid this problem by using skb_share_check(). Reported-by: Penttilä Mika Signed-off-by: David S. Miller

packet: Add 'cpu' fanout policy.

2011-07-06T08:56:38Z

Unfortunately we have to use a real modulus here as the multiply trick won't work as effectively with cpu numbers as it does with rxhash values. Signed-off-by: David S. Miller

packet: Add pre-defragmentation support for ipv4 fanouts.

2011-07-06T05:34:52Z

The skb->rxhash cannot be properly computed if the packet is a fragment. To alleviate this, allow the AF_PACKET client to ask for defragmentation to be done at demux time. Signed-off-by: David S. Miller

packet: Add fanout support.

2011-07-06T05:34:52Z

Fanouts allow packet capturing to be demuxed to a set of AF_PACKET sockets. Two fanout policies are implemented: 1) Hashing based upon skb->rxhash 2) Pure round-robin An AF_PACKET socket must be fully bound before it tries to add itself to a fanout. All AF_PACKET sockets trying to join the same fanout must all have the same bind settings. Fanouts are identified (within a network namespace) by a 16-bit ID. The first socket to try to add itself to a fanout with a particular ID, creates that fanout. When the last socket leaves the fanout (which happens only when the socket is closed), that fanout is destroyed. Signed-off-by: David S. Miller

packet: Add helpers to register/unregister ->prot_hook

2011-07-06T05:34:52Z

Signed-off-by: David S. Miller

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

2011-06-21T05:29:08Z

Conflicts: drivers/net/wireless/iwlwifi/iwl-agn-rxon.c drivers/net/wireless/rtlwifi/pci.c net/netfilter/ipvs/ip_vs_core.c

virtio_net: introduce VIRTIO_NET_HDR_F_DATA_VALID

2011-06-11T22:57:47Z

There's no need for the guest to validate the checksum if it have been validated by host nics. So this patch introduces a new flag - VIRTIO_NET_HDR_F_DATA_VALID which is used to bypass the checksum examing in guest. The backend (tap/macvtap) may set this flag when met skbs with CHECKSUM_UNNECESSARY to save cpu utilization. No feature negotiation is needed as old driver just ignore this flag. Iperf shows 12%-30% performance improvement for UDP traffic. For TCP, when gro is on no difference as it produces skb with partial checksum. But when gro is disabled, 20% or even higher improvement could be measured by netperf. Signed-off-by: Jason Wang Acked-by: Michael S. Tsirkin Signed-off-by: David S. Miller