tests: Make ovsdb-server add/remove remote test faster and more reliable.

Until now, the "ovsdb-server/add-remote and remove-remote with --monitor"
test killed ovsdb-server with SIGSEGV twice.  Each time, the "--monitor"
option caused the supervisor process to restart the child, but the second
time it incurred a 10-second delay intended to prevent the daemon from
wasting CPU time by restarting itself and dying again very quickly in a
loop.  This made the test take over 10 seconds to execute.  It also made
it occasionally fail because the OVS_WAIT_UNTIL check waits at most
approximately 10 seconds before it decides that the condition that it is
testing for will never occur.

This commit fixes the problem by breaking the test into two tests, each of
which kills ovsdb-server with SIGSEGV only once.

Signed-off-by: Alex Wang <alexw@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
lib/meta-flow: Enforce mf_fields array order.

The elements of the array must be in the enum order.

Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
tests/test-unix-socket.py: abort on an error

Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Signed-off-by: Ben Pfaff <blp@nicira.com>
tests: fix failure when $PKIDIR contains uuid-like string

this fixes a test failure with my working directory:
    /disks/ea6a5743-ad5f-11e2-9410-08606e7f74e7/git/openvswitch

stop filtering uuid as it's unnecessary for this specific test case.

Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Signed-off-by: Ben Pfaff <blp@nicira.com>
vxlan: Optimize vxlan rcv

vxlan-udp-recv function lookup vxlan_sock struct on every packet
recv by using udp-port number. we can use sk->sk_user_data to
store vxlan_sock and avoid lookup.

This commit also allows us to get rid of socket hash table.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Set release date for 2.0.0.

Signed-off-by: Justin Pettit <jpettit@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
meta-flow: Add mf_mask_field_and_prereqs().

Sets mask bits for the given field and its prerequisite fields.
Needed for unwildcarding the proper bits from datapath masks.
Removed old prototype for mf_force_prereqs().

Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Set datapath mask bits when setting a flow field.

Since at the datapath interface we do not have set actions for
individual fields, but larger sets of fields for a given protocol
layer, the set action will in practice only ever apply to exactly
matched flows for the given protocol layer.  For example, if the
reg_load changes the IP TTL, the corresponding datapath action will
rewrite also the IP addresses and TOS byte.  Since these other field
values may not be explicitly set, they depend on the incoming flow field
values, and are hence all of them are set in the wildcards masks, when
the action is committed to the datapath.  For the rare case, where the
reg_load action does not actually change the value, and no other flow
field values are set (or loaded), the datapath action is skipped, and
no mask bits are set.  Such a datapath flow should, however, be
dependent on the specific field value, so the corresponding wildcard
mask bits must be set, lest the datapath flow be applied to packets
containing some other value in the field and the field value remain
unchanged regardless of the incoming value.

Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
connmgr: Always send full packet in packet_in when not buffering.

According to the specs, if a packet is not buffered for some reasons,
we should send the entire packet, regardless of max_len.

Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Announce that ovs-vswitchd is now multi-threaded.

Might be worth mentioning the biggest change in 2.0.

Signed-off-by: Justin Pettit <jpettit@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
OPENFLOW-1.1+: note on table-miss

Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Signed-off-by: Ben Pfaff <blp@nicira.com>
netdev-dummy: Count rx packets regardless of source

This alters the way rx packets are accounted for by
counting them when they are processed by netdev_dummy_rx_recv(),
which seems to be a common path used by all received packets.

Previously accounting was done earlier, in netdev_dummy_receive(),
however this does not appear to count packets that are received via
a socket.

This resolves packet counting errors reported by the following
OFtest tests:

	port_stats.MultiFlowStats
	port_stats.SingleFlowStats
	pktact.WildcardPriorityWithDelete
	pktact.WildcardPriority

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Ben Pfaff <blp@nicira.com>
ovs-dpctl-top: in_port field is now the default view

This facilitates adding filtering since limiting output based on the in_port
is a natural first step.

Script mode was not changed allowing output to be piped through grep to
filter content.

Signed-off-by: Mark Hamilton <mhamilton@nicira.com>
Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>
ofproto: Re-use port numbers of ports that were deleted an hour ago.

We have a least recently used algorithm for assigning ofport values
to newly created ports. i.e., when we don't have any unused ofport
numbers, we use ofport numbers from the oldest deleted port.
What this means is that after using ~65000 previously unused ofport
numbers, we will have to go through all of the possible ports
to see which one was least recently used. This will eventually
slow down ofport allocation.

With this commit, any port that was deleted more than an hour ago is
considered never to have been used. So it's ofport number becomes
free to be used.

Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
oftest: Update default controller port number to match recent OFTest.

Also, document how to work around it if you use an older OFTest.

Reported-by: Simon Horman <horms@verge.net.au>
Reported-by: Lori Jakab <lojakab@cisco.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
datapath: fix vport-netdev unregister

The combination of two commits:
commit 8e4e1713e4
("openvswitch: Simplify datapath locking.")
commit 2537b4dd0a
("openvswitch:: link upper device for port devices")

introduced a bug where upper_dev wasn't unlinked upon
netdev_unregister notification

The following steps:

  modprobe openvswitch
  ovs-dpctl add-dp test
  ip tuntap add dev tap1 mode tap
  ovs-dpctl add-if test tap1
  ip tuntap del dev tap1 mode tap

are causing multiple warnings:

[   62.747557] gre: GRE over IPv4 demultiplexor driver
[   62.749579] openvswitch: Open vSwitch switching datapath
[   62.755087] device test entered promiscuous mode
[   62.765911] device tap1 entered promiscuous mode
[   62.766033] IPv6: ADDRCONF(NETDEV_UP): tap1: link is not ready
[   62.769017] ------------[ cut here ]------------
[   62.769022] WARNING: CPU: 1 PID: 3267 at net/core/dev.c:5501 rollback_registered_many+0x20f/0x240()
[   62.769023] Modules linked in: openvswitch gre vxlan ip_tunnel libcrc32c ip6table_filter ip6_tables ebtable_nat ebtables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_CHECKSUM iptable_mangle ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc vhost_net macvtap macvlan vhost kvm_intel kvm dm_crypt iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi hid_generic mxm_wmi eeepc_wmi asus_wmi sparse_keymap dm_multipath psmouse serio_raw usbhid hid parport_pc ppdev firewire_ohci lpc_ich firewire_core e1000e crc_itu_t binfmt_misc igb dca ptp pps_core mac_hid wmi lp parport i2o_config i2o_block video
[   62.769051] CPU: 1 PID: 3267 Comm: ip Not tainted 3.12.0-rc3+ #60
[   62.769052] Hardware name: System manufacturer System Product Name/P8Z77 WS, BIOS 3007 07/26/2012
[   62.769053]  0000000000000009 ffff8807f25cbd28 ffffffff8175e575 0000000000000006
[   62.769055]  0000000000000000 ffff8807f25cbd68 ffffffff8105314c ffff8807f25cbd58
[   62.769057]  ffff8807f2634000 ffff8807f25cbdc8 ffff8807f25cbd88 ffff8807f25cbdc8
[   62.769059] Call Trace:
[   62.769062]  [<ffffffff8175e575>] dump_stack+0x55/0x76
[   62.769065]  [<ffffffff8105314c>] warn_slowpath_common+0x8c/0xc0
[   62.769067]  [<ffffffff8105319a>] warn_slowpath_null+0x1a/0x20
[   62.769069]  [<ffffffff8162a04f>] rollback_registered_many+0x20f/0x240
[   62.769071]  [<ffffffff8162a101>] rollback_registered+0x31/0x40
[   62.769073]  [<ffffffff8162a488>] unregister_netdevice_queue+0x58/0x90
[   62.769075]  [<ffffffff8154f900>] __tun_detach+0x140/0x340
[   62.769077]  [<ffffffff8154fb36>] tun_chr_close+0x36/0x60
[   62.769080]  [<ffffffff811bddaf>] __fput+0xff/0x260
[   62.769082]  [<ffffffff811bdf5e>] ____fput+0xe/0x10
[   62.769084]  [<ffffffff8107b515>] task_work_run+0xb5/0xe0
[   62.769087]  [<ffffffff810029b9>] do_notify_resume+0x59/0x80
[   62.769089]  [<ffffffff813a41fe>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[   62.769091]  [<ffffffff81770f5a>] int_signal+0x12/0x17
[   62.769093] ---[ end trace 838756c62e156ffb ]---
[   62.769481] ------------[ cut here ]------------
[   62.769485] WARNING: CPU: 1 PID: 92 at fs/sysfs/inode.c:325 sysfs_hash_and_remove+0xa9/0xb0()
[   62.769486] sysfs: can not remove 'master', no directory
[   62.769486] Modules linked in: openvswitch gre vxlan ip_tunnel libcrc32c ip6table_filter ip6_tables ebtable_nat ebtables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_CHECKSUM iptable_mangle ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc vhost_net macvtap macvlan vhost kvm_intel kvm dm_crypt iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi hid_generic mxm_wmi eeepc_wmi asus_wmi sparse_keymap dm_multipath psmouse serio_raw usbhid hid parport_pc ppdev firewire_ohci lpc_ich firewire_core e1000e crc_itu_t binfmt_misc igb dca ptp pps_core mac_hid wmi lp parport i2o_config i2o_block video
[   62.769514] CPU: 1 PID: 92 Comm: kworker/1:2 Tainted: G        W    3.12.0-rc3+ #60
[   62.769515] Hardware name: System manufacturer System Product Name/P8Z77 WS, BIOS 3007 07/26/2012
[   62.769518] Workqueue: events ovs_dp_notify_wq [openvswitch]
[   62.769519]  0000000000000009 ffff880807ad3ac8 ffffffff8175e575 0000000000000006
[   62.769521]  ffff880807ad3b18 ffff880807ad3b08 ffffffff8105314c ffff880807ad3b28
[   62.769523]  0000000000000000 ffffffff81a87a1f ffff8807f2634000 ffff880037038500
[   62.769525] Call Trace:
[   62.769528]  [<ffffffff8175e575>] dump_stack+0x55/0x76
[   62.769529]  [<ffffffff8105314c>] warn_slowpath_common+0x8c/0xc0
[   62.769531]  [<ffffffff81053236>] warn_slowpath_fmt+0x46/0x50
[   62.769533]  [<ffffffff8123e7e9>] sysfs_hash_and_remove+0xa9/0xb0
[   62.769535]  [<ffffffff81240e96>] sysfs_remove_link+0x26/0x30
[   62.769538]  [<ffffffff81631ef7>] __netdev_adjacent_dev_remove+0xf7/0x150
[   62.769540]  [<ffffffff81632037>] __netdev_adjacent_dev_unlink_lists+0x27/0x50
[   62.769542]  [<ffffffff8163213a>] __netdev_adjacent_dev_unlink_neighbour+0x3a/0x50
[   62.769544]  [<ffffffff8163218d>] netdev_upper_dev_unlink+0x3d/0x140
[   62.769548]  [<ffffffffa033c2db>] netdev_destroy+0x4b/0x80 [openvswitch]
[   62.769550]  [<ffffffffa033b696>] ovs_vport_del+0x46/0x60 [openvswitch]
[   62.769552]  [<ffffffffa0335314>] ovs_dp_detach_port+0x44/0x60 [openvswitch]
[   62.769555]  [<ffffffffa0336574>] ovs_dp_notify_wq+0xb4/0x150 [openvswitch]
[   62.769557]  [<ffffffff81075c28>] process_one_work+0x1d8/0x6a0
[   62.769559]  [<ffffffff81075bc8>] ? process_one_work+0x178/0x6a0
[   62.769562]  [<ffffffff8107659b>] worker_thread+0x11b/0x370
[   62.769564]  [<ffffffff81076480>] ? rescuer_thread+0x350/0x350
[   62.769566]  [<ffffffff8107f44a>] kthread+0xea/0xf0
[   62.769568]  [<ffffffff8107f360>] ? flush_kthread_worker+0x150/0x150
[   62.769570]  [<ffffffff81770bac>] ret_from_fork+0x7c/0xb0
[   62.769572]  [<ffffffff8107f360>] ? flush_kthread_worker+0x150/0x150
[   62.769573] ---[ end trace 838756c62e156ffc ]---
[   62.769574] ------------[ cut here ]------------
[   62.769576] WARNING: CPU: 1 PID: 92 at fs/sysfs/inode.c:325 sysfs_hash_and_remove+0xa9/0xb0()
[   62.769577] sysfs: can not remove 'upper_test', no directory
[   62.769577] Modules linked in: openvswitch gre vxlan ip_tunnel libcrc32c ip6table_filter ip6_tables ebtable_nat ebtables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_CHECKSUM iptable_mangle ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc vhost_net macvtap macvlan vhost kvm_intel kvm dm_crypt iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi hid_generic mxm_wmi eeepc_wmi asus_wmi sparse_keymap dm_multipath psmouse serio_raw usbhid hid parport_pc ppdev firewire_ohci lpc_ich firewire_core e1000e crc_itu_t binfmt_misc igb dca ptp pps_core mac_hid wmi lp parport i2o_config i2o_block video
[   62.769603] CPU: 1 PID: 92 Comm: kworker/1:2 Tainted: G        W    3.12.0-rc3+ #60
[   62.769604] Hardware name: System manufacturer System Product Name/P8Z77 WS, BIOS 3007 07/26/2012
[   62.769606] Workqueue: events ovs_dp_notify_wq [openvswitch]
[   62.769607]  0000000000000009 ffff880807ad3ac8 ffffffff8175e575 0000000000000006
[   62.769609]  ffff880807ad3b18 ffff880807ad3b08 ffffffff8105314c ffff880807ad3b58
[   62.769611]  0000000000000000 ffff880807ad3bd9 ffff8807f2634000 ffff880037038500
[   62.769613] Call Trace:
[   62.769615]  [<ffffffff8175e575>] dump_stack+0x55/0x76
[   62.769617]  [<ffffffff8105314c>] warn_slowpath_common+0x8c/0xc0
[   62.769619]  [<ffffffff81053236>] warn_slowpath_fmt+0x46/0x50
[   62.769621]  [<ffffffff8123e7e9>] sysfs_hash_and_remove+0xa9/0xb0
[   62.769622]  [<ffffffff81240e96>] sysfs_remove_link+0x26/0x30
[   62.769624]  [<ffffffff81631f22>] __netdev_adjacent_dev_remove+0x122/0x150
[   62.769627]  [<ffffffff81632037>] __netdev_adjacent_dev_unlink_lists+0x27/0x50
[   62.769629]  [<ffffffff8163213a>] __netdev_adjacent_dev_unlink_neighbour+0x3a/0x50
[   62.769631]  [<ffffffff8163218d>] netdev_upper_dev_unlink+0x3d/0x140
[   62.769633]  [<ffffffffa033c2db>] netdev_destroy+0x4b/0x80 [openvswitch]
[   62.769636]  [<ffffffffa033b696>] ovs_vport_del+0x46/0x60 [openvswitch]
[   62.769638]  [<ffffffffa0335314>] ovs_dp_detach_port+0x44/0x60 [openvswitch]
[   62.769640]  [<ffffffffa0336574>] ovs_dp_notify_wq+0xb4/0x150 [openvswitch]
[   62.769642]  [<ffffffff81075c28>] process_one_work+0x1d8/0x6a0
[   62.769644]  [<ffffffff81075bc8>] ? process_one_work+0x178/0x6a0
[   62.769646]  [<ffffffff8107659b>] worker_thread+0x11b/0x370
[   62.769648]  [<ffffffff81076480>] ? rescuer_thread+0x350/0x350
[   62.769650]  [<ffffffff8107f44a>] kthread+0xea/0xf0
[   62.769652]  [<ffffffff8107f360>] ? flush_kthread_worker+0x150/0x150
[   62.769654]  [<ffffffff81770bac>] ret_from_fork+0x7c/0xb0
[   62.769656]  [<ffffffff8107f360>] ? flush_kthread_worker+0x150/0x150
[   62.769657] ---[ end trace 838756c62e156ffd ]---
[   62.769724] device tap1 left promiscuous mode

This patch also affects moving devices between net namespaces.

OVS used to ignore netns move notifications which caused problems.
Like:
  ovs-dpctl add-if test tap1
  ip link set tap1 netns 3512
and then removing tap1 inside the namespace will cause hang on missing dev_put.

With this patch OVS will detach dev upon receiving netns move event.

Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>