linux-stable.git/net/openvswitch/vport-internal_dev.c, branch linux-4.3.y

openvswitch: Allocate memory for ovs internal device stats.

2015-10-22T02:06:36+00:00

"openvswitch: Remove vport stats" removed the per-vport statistics, in
order to use the netdev's statistics fields.
"openvswitch: Fix ovs_vport_get_stats()" fixed the export of these stats
to user-space, by using the provided netdev_ops to collate them - but ovs
internal devices still use an unallocated dev->tstats field to count
packets, which are no longer exported by this api.

Allocate the dev->tstats field for ovs internal devices, and wire up
ndo_get_stats64 with the original implementation of
ovs_vport_get_stats().

On its own, "openvswitch: Fix ovs_vport_get_stats()" fixes the OOPs,
unmasking a full-on panic on arm64:

=============%<==============
[] internal_dev_recv+0xa8/0x170 [openvswitch]
[] do_output.isra.31+0x60/0x19c [openvswitch]
[] do_execute_actions+0x208/0x11c0 [openvswitch]
[] ovs_execute_actions+0xc8/0x238 [openvswitch]
[] ovs_packet_cmd_execute+0x21c/0x288 [openvswitch]
[] genl_family_rcv_msg+0x1b0/0x310
[] genl_rcv_msg+0xa4/0xe4
[] netlink_rcv_skb+0xb0/0xdc
[] genl_rcv+0x38/0x50
[] netlink_unicast+0x164/0x210
[] netlink_sendmsg+0x304/0x368
[] sock_sendmsg+0x30/0x4c
[SNIP]
Kernel panic - not syncing: Fatal exception in interrupt
=============%<==============

Fixes: 8c876639c985 ("openvswitch: Remove vport stats.")
Signed-off-by: James Morse 
Acked-by: Pravin B Shelar 
Signed-off-by: David S. Miller

openvswitch: Remove vport stats.

2015-08-30T02:07:15+00:00

Since all vport types are now backed by netdev, we can directly
use netdev stats. Following patch removes redundant stat
from vport.

Signed-off-by: Pravin B Shelar 
Signed-off-by: David S. Miller

net: add netif_is_ovs_master helper with IFF_OPENVSWITCH private flag

2015-08-27T23:28:35+00:00

Add this helper so code can easily figure out if netdev is openswitch.

Signed-off-by: Jiri Pirko 
Signed-off-by: David S. Miller

openvswitch: Abstract vport name through ovs_vport_name()

2015-07-21T17:39:07+00:00

This allows to get rid of the get_name() vport ops later on.

Signed-off-by: Thomas Graf 
Signed-off-by: David S. Miller

openvswitch: Move dev pointer into vport itself

2015-07-21T17:39:07+00:00

This is the first step in representing all OVS vports as regular
struct net_devices. Move the net_device pointer into the vport
structure itself to get rid of struct vport_netdev.

Signed-off-by: Thomas Graf 
Signed-off-by: Pravin B Shelar 
Signed-off-by: David S. Miller

openvswitch: Drop packets when interdev is not up

2014-11-06T07:52:35+00:00

If the internal device is not up, it should drop received
packets. Sometimes it receive the broadcast or multicast
packets, and the ip protocol stack will casue more cpu
usage wasted.

Signed-off-by: Chunhe Li 
Signed-off-by: Pravin B Shelar

ovs: Turn vports with dependencies into separate modules

2014-10-28T18:43:18+00:00

The internal and netdev vport remain part of openvswitch.ko. Encap
vports including vxlan, gre, and geneve can be built as separate
modules and are loaded on demand. Modules can be unloaded after use.
Datapath ports keep a reference to the vport module during their
lifetime.

Allows to remove the error prone maintenance of the global list
vport_ops_list.

Signed-off-by: Thomas Graf 
Signed-off-by: David S. Miller

openvswitch: Enable tunnel GSO for OVS bridge.

2014-07-24T08:15:04+00:00

Following patch enables all available tunnel GSO features for OVS
bridge device so that ovs can use hardware offloads available to
underling device.

Signed-off-by: Pravin B Shelar 
Acked-by: Andy Zhou

net: set name_assign_type in alloc_netdev()

2014-07-15T23:12:48+00:00

Extend alloc_netdev{,_mq{,s}}() to take name_assign_type as argument, and convert
all users to pass NET_NAME_UNKNOWN.

Coccinelle patch:

@@
expression sizeof_priv, name, setup, txqs, rxqs, count;
@@

(
-alloc_netdev_mqs(sizeof_priv, name, setup, txqs, rxqs)
+alloc_netdev_mqs(sizeof_priv, name, NET_NAME_UNKNOWN, setup, txqs, rxqs)
|
-alloc_netdev_mq(sizeof_priv, name, setup, count)
+alloc_netdev_mq(sizeof_priv, name, NET_NAME_UNKNOWN, setup, count)
|
-alloc_netdev(sizeof_priv, name, setup)
+alloc_netdev(sizeof_priv, name, NET_NAME_UNKNOWN, setup)
)

v9: move comments here from the wrong commit

Signed-off-by: Tom Gundersen 
Reviewed-by: David Herrmann 
Signed-off-by: David S. Miller

openvswitch: introduce rtnl ops stub

2014-07-01T21:40:17+00:00

This stub now allows userspace to see IFLA_INFO_KIND for ovs master and
IFLA_INFO_SLAVE_KIND for slave.

Signed-off-by: Jiri Pirko 
Signed-off-by: David S. Miller