linux.git/net/ipv4/raw.c, branch v2.6.31

net: correct off-by-one write allocations reports

2009-06-18T07:29:12+00:00

commit 2b85a34e911bf483c27cfdd124aeb1605145dc80
(net: No more expensive sock_hold()/sock_put() on each tx)
changed initial sk_wmem_alloc value.

We need to take into account this offset when reporting
sk_wmem_alloc to user, in PROC_FS files or various
ioctls (SIOCOUTQ/TIOCOUTQ)

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

net: skb->dst accessors

2009-06-03T09:51:04+00:00

Define three accessors to get/set dst attached to a skb

struct dst_entry *skb_dst(const struct sk_buff *skb)

void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst)

void skb_dst_drop(struct sk_buff *skb)
This one should replace occurrences of :
dst_release(skb->dst)
skb->dst = NULL;

Delete skb->dst field

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

ip: support for TX timestamps on UDP and RAW sockets

2009-02-16T06:43:38+00:00

Instructions for time stamping outgoing packets are take from the
socket layer and later copied into the new skb.

Signed-off-by: Patrick Ohly 
Signed-off-by: David S. Miller

net: avoid a pair of dst_hold()/dst_release() in ip_append_data()

2008-11-24T23:52:46+00:00

We can reduce pressure on dst entry refcount that slowdown UDP transmit
path on SMP machines. This pressure is visible on RTP servers when
delivering content to mediagateways, especially big ones, handling
thousand of streams. Several cpus send UDP frames to the same
destination, hence use the same dst entry.

This patch makes ip_append_data() eventually steal the refcount its
callers had to take on the dst entry.

This doesnt avoid all refcounting, but still gives speedups on SMP,
on UDP/RAW transmit path

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

net: clean up net/ipv4/ipip.c raw.c tcp.c tcp_minisocks.c tcp_yeah.c xfrm4_policy.c

2008-11-03T08:24:34+00:00

Signed-off-by: Jianjun Kong 
Signed-off-by: David S. Miller

mib: add net to IP_INC_STATS

2008-07-17T03:19:49+00:00

All the callers already have either the net itself, or the place
where to get it from.

Signed-off-by: Pavel Emelyanov 
Signed-off-by: David S. Miller

icmp: add struct net argument to icmp_out_count

2008-07-15T06:05:13+00:00

This routine deals with ICMP statistics, but doesn't have a
struct net at hands, so add one.

Signed-off-by: Pavel Emelyanov 
Signed-off-by: David S. Miller

udp: sk_drops handling

2008-06-18T04:04:56+00:00

In commits 33c732c36169d7022ad7d6eb474b0c9be43a2dc1 ([IPV4]: Add raw
drops counter) and a92aa318b4b369091fd80433c80e62838db8bc1c ([IPV6]:
Add raw drops counter), Wang Chen added raw drops counter for
/proc/net/raw & /proc/net/raw6

This patch adds this capability to UDP sockets too (/proc/net/udp &
/proc/net/udp6).

This means that 'RcvbufErrors' errors found in /proc/net/snmp can be also
be examined for each udp socket.

# grep Udp: /proc/net/snmp
Udp: InDatagrams NoPorts InErrors OutDatagrams RcvbufErrors SndbufErrors
Udp: 23971006 75 899420 16390693 146348 0

# cat /proc/net/udp
 sl  local_address rem_address   st tx_queue rx_queue tr tm->when retrnsmt  ---
uid  timeout inode ref pointer drops
 75: 00000000:02CB 00000000:0000 07 00000000:00000000 00:00000000 00000000  ---
  0        0 2358 2 ffff81082a538c80 0
111: 00000000:006F 00000000:0000 07 00000000:00000000 00:00000000 00000000  ---
  0        0 2286 2 ffff81042dd35c80 146348

In this example, only port 111 (0x006F) was flooded by messages that
user program could not read fast enough. 146348 messages were lost.

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

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

2008-06-17T01:25:48+00:00

Conflicts:

	drivers/net/wireless/rt2x00/Kconfig
	drivers/net/wireless/rt2x00/rt2x00usb.c
	net/sctp/protocol.c

raw: Restore /proc/net/raw correct behavior

2008-06-17T00:03:32+00:00

I just noticed "cat /proc/net/raw" was buggy, missing '\n' separators.

I believe this was introduced by commit 8cd850efa4948d57a2ed836911cfd1ab299e89c6 
([RAW]: Cleanup IPv4 raw_seq_show.)

This trivial patch restores correct behavior, and applies to current 
Linus tree (should also be applied to stable tree as well.)

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller