delta/openvswitch.git/DESIGN, branch master

doc: Convert docs to Markdown language

2014-10-28T15:55:18+00:00

Converts the majority of docs over to use the Markdown language for
pretty printing on GitHub. It's a rough first convertion without
exploiting the full potential of Markdown at this point. Section
titles and indentation are fixed as needed. Minimal docs interlinking
is added.

Signed-off-by: Thomas Graf 
Signed-off-by: Ben Pfaff

ofproto: Allow the use of the OpenFlow 1.4 protocol

2014-03-23T21:44:58+00:00

This defines the version number for OpenFlow 1.4 so that the switch
can actually use it. The ovsdb schema is also modified.

Signed-off-by: Alexandru Copot 
Cc: Daniel Baluta 
[blp@nicira.com adjusted code in cases where 1.3 and 1.4 are the same]
Signed-off-by: Ben Pfaff

ofp-util: Implement OpenFlow 1.1 packet-in message.

2013-12-04T16:23:32+00:00

Signed-off-by: Ben Pfaff 
Reviewed-by: Simon Horman

DESIGN: Update flow_mod section to describe OpenFlow 1.1+ behavior.

2013-07-08T21:52:43+00:00

Signed-off-by: Ben Pfaff

DESIGN: Fix typo in "VLAN Matching" section.

2013-07-08T21:29:01+00:00

Signed-off-by: Ben Pfaff

tests: Add more tests for VLAN match encoding and decoding.

2012-07-20T05:17:10+00:00

Signed-off-by: Ben Pfaff 
Acked-by: Simon Horman

ofp-actions: Add decoding and encoding OF1.1 instructions and actions.

2012-07-04T05:21:12+00:00

So far, only the Apply-Actions instruction is supported, and only
actions that have identical semantics to OpenFlow 1.0 actions.

Co-authored-by: Simon Horman 
Co-authored-by: Isaku Yamahata 
Signed-off-by: Ben Pfaff

Introduce ofpacts, an abstraction of OpenFlow actions.

2012-07-04T05:21:11+00:00

OpenFlow actions have always been somewhat awkward to handle.
Moreover, over time we've started creating actions that require more
complicated parsing.  When we maintain those actions internally in
their wire format, we end up parsing them multiple times, whenever
we have to look at the set of actions.

When we add support for OpenFlow 1.1 or later protocols, the situation
will get worse, because these newer protocols support many of the same
actions but with different representations.  It becomes unrealistic to
handle each protocol in its wire format.

This commit adopts a new strategy, by converting OpenFlow actions into
an internal form from the wire format when they are read, and converting
them back to the wire format when flows are dumped.  I believe that this
will be more maintainable over time.

Thanks to Simon Horman and Pravin Shelar for reviews.

Signed-off-by: Ben Pfaff

Setting miss_send_len on receiving NXT_SET_ASYNC_CONFIG message.

2012-06-26T19:30:26+00:00

For the service controllers to receive any asynchronous messages, the
miss_send_len must be set to a non-zero value (refer to DESIGN).  On
receiving the NXT_SET_ASYNC_CONFIG message, the miss_send_len is set
to the default value unless it is set to a non-zero value earlier by
the OFPT_SET_CONFIG message.

Signed-off-by: Mehak Mahajan

ofp-util: Clean up cookie handling.

2012-05-29T08:41:21+00:00

Commit e72e793 (Add ability to restrict flow mods and flow stats
requests to cookies.) modified cookie handling.  Some of its behavior
was unintuitive and there was at least one bug (described below).
Commit f66b87d (DESIGN: Document uses for flow cookies.) attempted to
document a clean design for cookie handling.  This commit updates the
DESIGN document and brings the implementation in line with it.

In commit e72e793, the code that handled processing OpenFlow flow
modification requests set the cookie mask to exact-match.  This seems
reasonable for adding flows, but is not correct for matching, since
OpenFlow 1.0 doesn't support matching based on the cookie.  This commit
changes to cookie mask to fully wildcarded, which is the correct
behavior for modifications and deletions.  It doesn't cause any problems
for flow additions, since the mask is ignored for that operation.

Bug #9742

Reported-by: Luca Giraudo 
Reported-by: Paul Ingram 
Signed-off-by: Justin Pettit