| 4e8febd0a76333875636859e0092a14c1fba49e4 |
|
15-Oct-2014 |
Fabian Frederick <fabf@skynet.be> |
openvswitch: use vport instead of p
All functions used struct vport *vport except
ovs_vport_find_upcall_portid.
This fixes 1 kerneldoc warning
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| f5796684069e0c71c65bce6a6d4766114aec1396 |
|
04-Oct-2014 |
Jesse Gross <jesse@nicira.com> |
openvswitch: Add support for Geneve tunneling.
The Openvswitch implementation is completely agnostic to the options
that are in use and can handle newly defined options without
further work. It does this by simply matching on a byte array
of options and allowing userspace to setup flows on this array.
Signed-off-by: Jesse Gross <jesse@nicira.com>
Singed-off-by: Ansis Atteka <aatteka@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| f0b128c1e2cc33ad104daf0f51a51e34f7763c5f |
|
04-Oct-2014 |
Jesse Gross <jesse@nicira.com> |
openvswitch: Wrap struct ovs_key_ipv4_tunnel in a new structure.
Currently, the flow information that is matched for tunnels and
the tunnel data passed around with packets is the same. However,
as additional information is added this is not necessarily desirable,
as in the case of pointers.
This adds a new structure for tunnel metadata which currently contains
only the existing struct. This change is purely internal to the kernel
since the current OVS_KEY_ATTR_IPV4_TUNNEL is simply a compressed version
of OVS_KEY_ATTR_TUNNEL that is translated at flow setup.
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 8c8b1b83fcdd0f05e1f66ed6f8a2e831d5d374a2 |
|
16-Sep-2014 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Use tun_key only for egress tunnel path.
Currently tun_key is used for passing tunnel information
on ingress and egress path, this cause confusion. Following
patch removes its use on ingress path make it egress only parameter.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Andy Zhou <azhou@nicira.com>
|
| 83c8df26a3b654871c0503fcf6eac61777e12ea1 |
|
16-Sep-2014 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: refactor ovs flow extract API.
OVS flow extract is called on packet receive or packet
execute code path. Following patch defines separate API
for extracting flow-key in packet execute code path.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Andy Zhou <azhou@nicira.com>
|
| e403aded79a1bfb610adc53490ded8d2058f9daf |
|
06-Sep-2014 |
Li RongQing <roy.qing.li@gmail.com> |
openvswitch: change the data type of error status to atomic_long_t
Change the date type of error status from u64 to atomic_long_t, and use atomic
operation, then remove the lock which is used to protect the error status.
The operation of atomic maybe faster than spin lock.
Cc: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 3791b3f6fb74d265c93d493d9bbf29c1e769ceae |
|
12-Aug-2014 |
Christoph Jaeger <cj@linux.com> |
openvswitch: Fix memory leak in ovs_vport_alloc() error path
ovs_vport_alloc() bails out without freeing the memory 'vport' points to.
Picked up by Coverity - CID 1230503.
Fixes: 5cd667b0a4 ("openvswitch: Allow each vport to have an array of 'port_id's.")
Signed-off-by: Christoph Jaeger <cj@linux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 5cd667b0a4567048bb555927d6ee564f4e5620a9 |
|
18-Jul-2014 |
Alex Wang <alexw@nicira.com> |
openvswitch: Allow each vport to have an array of 'port_id's.
In order to allow handlers directly read upcalls from datapath,
we need to support per-handler netlink socket for each vport in
datapath. This commit makes this happen. Also, it is guaranteed
to be backward compatible with previous branch.
Signed-off-by: Alex Wang <alexw@nicira.com>
Acked-by: Thomas Graf <tgraf@redhat.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| 57a7744e09867ebcfa0ccf1d6d529caa7728d552 |
|
14-Mar-2014 |
Eric W. Biederman <ebiederm@xmission.com> |
net: Replace u64_stats_fetch_begin_bh to u64_stats_fetch_begin_irq
Replace the bh safe variant with the hard irq safe variant.
We need a hard irq safe variant to deal with netpoll transmitting
packets from hard irq context, and we need it in most if not all of
the places using the bh safe variant.
Except on 32bit uni-processor the code is exactly the same so don't
bother with a bh variant, just have a hard irq safe variant that
everyone can use.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 1c213bd24ad04f4430031d20d740d7783162b099 |
|
13-Feb-2014 |
WANG Cong <xiyou.wangcong@gmail.com> |
net: introduce netdev_alloc_pcpu_stats() for drivers
There are many drivers calling alloc_percpu() to allocate pcpu stats
and then initializing ->syncp. So just introduce a helper function for them.
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 443cd88c8a31379e95326428bbbd40af25c1d440 |
|
17-Dec-2013 |
Stephen Hemminger <stephen@networkplumber.org> |
ovs: make functions local
Several functions and datastructures could be local
Found with 'make namespacecheck'
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 8f84985fec10de64a6b4cdfea45f2b0ab8f07c78 |
|
04-Jan-2014 |
Li RongQing <roy.qing.li@gmail.com> |
net: unify the pcpu_tstats and br_cpu_netstats as one
They are same, so unify them as one, pcpu_sw_netstats.
Define pcpu_sw_netstat in netdevice.h, remove pcpu_tstats
from if_tunnel and remove br_cpu_netstats from br_private.h
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 827da44c61419f29ae3be198c342e2147f1a10cb |
|
08-Oct-2013 |
John Stultz <john.stultz@linaro.org> |
net: Explicitly initialize u64_stats_sync structures for lockdep
In order to enable lockdep on seqcount/seqlock structures, we
must explicitly initialize any locks.
The u64_stats_sync structure, uses a seqcount, and thus we need
to introduce a u64_stats_init() function and use it to initialize
the structure.
This unfortunately adds a lot of fairly trivial initialization code
to a number of drivers. But the benefit of ensuring correctness makes
this worth while.
Because these changes are required for lockdep to be enabled, and the
changes are quite trivial, I've not yet split this patch out into 30-some
separate patches, as I figured it would be better to get the various
maintainers thoughts on how to best merge this change along with
the seqcount lockdep enablement.
Feedback would be appreciated!
Signed-off-by: John Stultz <john.stultz@linaro.org>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: James Morris <jmorris@namei.org>
Cc: Jesse Gross <jesse@nicira.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Mirko Lindner <mlindner@marvell.com>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Roger Luethi <rl@hellgate.ch>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Simon Horman <horms@verge.net.au>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Wensong Zhang <wensong@linux-vs.org>
Cc: netdev@vger.kernel.org
Link: http://lkml.kernel.org/r/1381186321-4906-2-git-send-email-john.stultz@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
|
| 2694838d608db701e5ed1e95d741cdbddd9aa864 |
|
20-Aug-2013 |
Justin Pettit <jpettit@nicira.com> |
openvswitch: Fix argument descriptions in vport.c.
Signed-off-by: Justin Pettit <jpettit@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 58264848a5a7b91195f43c4729072e8cc980288d |
|
19-Aug-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Add vxlan tunneling support.
Following patch adds vxlan vport type for openvswitch using
vxlan api. So now there is vxlan dependency for openvswitch.
CC: Jesse Gross <jesse@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| fb825a550a1af75323cee9d62d6fb818384c8c95 |
|
29-Jun-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Add Kconfig dependency on GRE-DEMUX.
Openvswitch uses function from NET_IPGRE_DEMUX module.
Add Kconfig dependency to fix following compilation errors:
http://marc.info/?l=linux-netdev&m=137244035226634
CC: Jesse Gross <jesse@nicira.com>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Pravin Shelar <pshelar@nicira.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 479b1a5825f68f9b63d26a13ca25ffbb7d2617ad |
|
21-Jun-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Use correct config guard.
This bug was introduced by commit aa310701e787087
(openvswitch: Add gre tunnel support.)
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| aa310701e787087dbfbccf1409982a96e16c57a6 |
|
18-Jun-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Add gre tunnel support.
Add gre vport implementation. Most of gre protocol processing
is pushed to gre module. It make use of gre demultiplexer
therefore it can co-exist with linux device based gre tunnels.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 7d5437c709ded4f152cb8b305d17972d6707f20c |
|
18-Jun-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Add tunneling interface.
Add ovs tunnel interface for set tunnel action for userspace.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| af7841636bb29575fe27faaeb351146e87217717 |
|
08-Jun-2013 |
Andy Hill <hillad@gmail.com> |
openvswitch: Fix misspellings in comments and docs.
Flagged with: https://github.com/lyda/misspell-check
Run with: git ls-files | misspellings -f -
Signed-off-by: Andy Hill <hillad@gmail.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 91b7514cdff406ad8f63d09b74f664c37bed2e01 |
|
13-May-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Unify vport error stats handling.
Following patch changes vport->send return type so that vport
layer can do error accounting.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| e0f0ecf33c3f13401f90bff5afdc3ed1bb40b9af |
|
15-Apr-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Use generic struct pcpu_tstats.
Rather than defining ovs specific stats struct (vport_percpu_stats),
we can use existing pcpu_tstats to achieve exactly same functionality.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 8e4e1713e4978447c5f799aa668dcc6d2cb0dee9 |
|
15-Apr-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Simplify datapath locking.
Currently OVS uses combination of genl and rtnl lock to protect
datapath state. This was done due to networking stack locking.
But this has complicated locking and there are few lock ordering
issues with new tunneling protocols.
Following patch simplifies locking by introducing new ovs mutex
and now this lock is used to protect entire ovs state.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 5d9633523f27dfcaac2d6052c7b3278311f77949 |
|
03-Apr-2013 |
Thomas Graf <tgraf@suug.ch> |
openvswitch: Don't insert empty OVS_VPORT_ATTR_OPTIONS attribute
The port specific options are currently unused resulting in an
empty OVS_VPORT_ATTR_OPTIONS nested attribute being inserted
into every OVS_VPORT_CMD_GET message.
Don't insert OVS_VPORT_ATTR_OPTIONS if no options are present.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| b67bfe0d42cac56c512dd5da4b1b347a23f4b70a |
|
28-Feb-2013 |
Sasha Levin <sasha.levin@oracle.com> |
hlist: drop the node parameter from iterators
I'm not sure why, but the hlist for each entry iterators were conceived
list_for_each_entry(pos, head, member)
The hlist ones were greedy and wanted an extra parameter:
hlist_for_each_entry(tpos, pos, head, member)
Why did they need an extra pos parameter? I'm not quite sure. Not only
they don't really need it, it also prevents the iterator from looking
exactly like the list iterator, which is unfortunate.
Besides the semantic patch, there was some manual work required:
- Fix up the actual hlist iterators in linux/list.h
- Fix up the declaration of other iterators based on the hlist ones.
- A very small amount of places were using the 'node' parameter, this
was modified to use 'obj->member' instead.
- Coccinelle didn't handle the hlist_for_each_entry_safe iterator
properly, so those had to be fixed up manually.
The semantic patch which is mostly the work of Peter Senna Tschudin is here:
@@
iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host;
type T;
expression a,c,d,e;
identifier b;
statement S;
@@
-T b;
<+... when != b
(
hlist_for_each_entry(a,
- b,
c, d) S
|
hlist_for_each_entry_continue(a,
- b,
c) S
|
hlist_for_each_entry_from(a,
- b,
c) S
|
hlist_for_each_entry_rcu(a,
- b,
c, d) S
|
hlist_for_each_entry_rcu_bh(a,
- b,
c, d) S
|
hlist_for_each_entry_continue_rcu_bh(a,
- b,
c) S
|
for_each_busy_worker(a, c,
- b,
d) S
|
ax25_uid_for_each(a,
- b,
c) S
|
ax25_for_each(a,
- b,
c) S
|
inet_bind_bucket_for_each(a,
- b,
c) S
|
sctp_for_each_hentry(a,
- b,
c) S
|
sk_for_each(a,
- b,
c) S
|
sk_for_each_rcu(a,
- b,
c) S
|
sk_for_each_from
-(a, b)
+(a)
S
+ sk_for_each_from(a) S
|
sk_for_each_safe(a,
- b,
c, d) S
|
sk_for_each_bound(a,
- b,
c) S
|
hlist_for_each_entry_safe(a,
- b,
c, d, e) S
|
hlist_for_each_entry_continue_rcu(a,
- b,
c) S
|
nr_neigh_for_each(a,
- b,
c) S
|
nr_neigh_for_each_safe(a,
- b,
c, d) S
|
nr_node_for_each(a,
- b,
c) S
|
nr_node_for_each_safe(a,
- b,
c, d) S
|
- for_each_gfn_sp(a, c, d, b) S
+ for_each_gfn_sp(a, c, d) S
|
- for_each_gfn_indirect_valid_sp(a, c, d, b) S
+ for_each_gfn_indirect_valid_sp(a, c, d) S
|
for_each_host(a,
- b,
c) S
|
for_each_host_safe(a,
- b,
c, d) S
|
for_each_mesh_entry(a,
- b,
c, d) S
)
...+>
[akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c]
[akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c]
[akpm@linux-foundation.org: checkpatch fixes]
[akpm@linux-foundation.org: fix warnings]
[akpm@linux-foudnation.org: redo intrusive kvm changes]
Tested-by: Peter Senna Tschudin <peter.senna@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| d176ca2a48ff2b5d7becfacdcbd1d72c73bd22d1 |
|
22-Feb-2013 |
Cong Wang <amwang@redhat.com> |
openvswitch: remove some useless comments
These comments are useless in upstream kernel.
Cc: David S. Miller <davem@davemloft.net>
Cc: Jesse Gross <jesse@nicira.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 404f2f1019c0293bd91dc1c03c8557ec97d9d104 |
|
13-Nov-2012 |
Shan Wei <davidshan@tencent.com> |
net: openvswitch: use this_cpu_ptr per-cpu helper
just use more faster this_cpu_ptr instead of per_cpu_ptr(p, smp_processor_id());
Signed-off-by: Shan Wei <davidshan@tencent.com>
Reviewed-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| a2bf91b5b8de0be867d4ff3b2533c6449149098c |
|
18-Sep-2012 |
Peter Senna Tschudin <peter.senna@gmail.com> |
net/openvswitch/vport.c: Remove unecessary semicolon
Found by http://coccinelle.lip6.fr/
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 15e473046cb6e5d18a4d0057e61d76315230382b |
|
07-Sep-2012 |
Eric W. Biederman <ebiederm@xmission.com> |
netlink: Rename pid to portid to avoid confusion
It is a frequent mistake to confuse the netlink port identifier with a
process identifier. Try to reduce this confusion by renaming fields
that hold port identifiers portid instead of pid.
I have carefully avoided changing the structures exported to
userspace to avoid changing the userspace API.
I have successfully built an allyesconfig kernel with this change.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 15eac2a74277bc7de68a7c2a64a7c91b4b6f5961 |
|
23-Aug-2012 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Increase maximum number of datapath ports.
Use hash table to store ports of datapath. Allow 64K ports per switch.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 46df7b814548849deee01f50bc75f8f5ae8cd767 |
|
23-Feb-2012 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Add support for network namespaces.
Following patch adds support for network namespace to openvswitch.
Since it must release devices when namespaces are destroyed, a
side effect of this patch is that the module no longer keeps a
refcount but instead cleans up any state when it is unloaded.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| caf2ee14bbc2c6bd73cf0decf576007e0239a482 |
|
04-May-2012 |
Raju Subramanian <rsubramanian@nicira.com> |
openvswitch: Replace Nicira Networks.
Replaced all instances of Nicira Networks(, Inc) to Nicira, Inc.
Signed-off-by: Raju Subramanian <rsubramanian@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 8d9d399f14ea65aeb50c7404e986bceede93bb99 |
|
14-Jan-2012 |
Devendra Naga <devendra.aaru@gmail.com> |
net: remove version.h includes in net/openvswitch/
remove version.h includes in net/openswitch/ as reported by make versioncheck.
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| f0a98ae8db603494d40e8ec9d7d2dfd41c9f6dc8 |
|
05-Dec-2011 |
Dan Carpenter <dan.carpenter@oracle.com> |
openvswitch: small potential memory leak in ovs_vport_alloc()
We're unlikely to hit this leak, but the static checkers complain if we
don't take care of it.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| ccb1352e76cff0524e7ccb2074826a092dd13016 |
|
26-Oct-2011 |
Jesse Gross <jesse@nicira.com> |
net: Add Open vSwitch kernel components.
Open vSwitch is a multilayer Ethernet switch targeted at virtualized
environments. In addition to supporting a variety of features
expected in a traditional hardware switch, it enables fine-grained
programmatic extension and flow-based control of the network.
This control is useful in a wide variety of applications but is
particularly important in multi-server virtualization deployments,
which are often characterized by highly dynamic endpoints and the need
to maintain logical abstractions for multiple tenants.
The Open vSwitch datapath provides an in-kernel fast path for packet
forwarding. It is complemented by a userspace daemon, ovs-vswitchd,
which is able to accept configuration from a variety of sources and
translate it into packet processing rules.
See http://openvswitch.org for more information and userspace
utilities.
Signed-off-by: Jesse Gross <jesse@nicira.com>
|