linux.git/drivers/net/veth.c, branch v2.6.32

veth: Fix veth_get_stats()

2009-11-19T21:16:22+00:00

veth_get_stats() can be called in parallel on several cpus.

It's better to not reset dev->stats as it could give wrong result on
one cpu. Use temporary variables, then store the final results.

Also, we should loop on every possible cpus, not only online cpus,
or cpu hotplug can suddenly give wrong veth stats.

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

netdev: drivers should make ethtool_ops const

2009-09-02T08:03:33+00:00

No need to put ethtool_ops in data, they should be const.

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller

netdev: convert pseudo drivers to netdev_tx_t

2009-09-01T08:13:40+00:00

These are all drivers that don't touch real hardware.

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller

veth: Zero timestamp in xmit path.

2009-07-24T01:01:02+00:00

This patch zero's the timestamp before handing the packet to
the peer interface.  This lets the peer recalculate the rx timestamp
if it cares about timestamps.

Signed-off-by: Ben Greear 
Signed-off-by: David S. Miller

net: use NETDEV_TX_OK instead of 0 in ndo_start_xmit() functions

2009-07-06T02:16:04+00:00

This patch is the result of an automatic spatch transformation to convert
all ndo_start_xmit() return values of 0 to NETDEV_TX_OK.

Some occurences are missed by the automatic conversion, those will be
handled in a seperate patch.

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

Revert "veth: prevent oops caused by netdev destructor"

2009-06-25T09:45:42+00:00

This reverts commit ae0e8e82205c903978a79ebf5e31c670b61fa5b4.

This change had two problems:

1) Since it frees the stats in the drivers' close method, we
   can OOPS in the transmit routine.

2) stats are no longer remembered across ifdown/ifup which
   disagrees with how every other device operates.

Thanks to analysis and test patch from Serge E. Hallyn
and initial OOPS report by Sachin Sant.

Signed-off-by: David S. Miller

veth: dont release skb->dst in veth_xmit()

2009-05-29T22:15:30+00:00

No need to release skb->dst, its now done by core network.

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

veth: prevent oops caused by netdev destructor

2009-04-27T10:04:58+00:00

From: Stephen Hemminger 

The veth driver will oops if sysfs hooks are open while module is removed.

The net device destructor can not point to code in a module; basically
there are only two possible safe values: NULL - no destructor, or
free_netdev - free on last use

Signed-off-by: David S. Miller

veth: Allow setting the L3 MTU

2009-03-04T07:36:04+00:00

The limitation to only 1500 byte mtu's limits the utility of the veth
device for testing routing.  So implement implement a configurable
MTU.

For consistency I drop packets on the receive side when they are
larger than the MTU.  I count those drops.  And I allow
a little padding for vlan headers.

I also test the mtu when a new device is created with netlink
because that path currently bypasses the current mtu setting
code.

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

veth: Fix carrier detect

2009-03-02T04:44:21+00:00

The current implementation of carrier detect in veth is broken.
It reports the link is down until both sides of the veth pair
are administatively up and then forever after it reports link up.

So fix veth so that it only reports link up when both interfaces
of the pair are administratively up.

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