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The openvswitch family has a fixed header, uses struct attrs and has array
values. This partial spec demonstrates these features in the YNL CLI. These
specs are sufficient to create, delete and dump datapaths and to dump vports:
$ ./tools/net/ynl/cli.py \
--spec Documentation/netlink/specs/ovs_datapath.yaml \
--do dp-new --json '{ "dp-ifindex": 0, "name": "demo", "upcall-pid": 0}'
None
$ ./tools/net/ynl/cli.py \
--spec Documentation/netlink/specs/ovs_datapath.yaml \
--dump dp-get --json '{ "dp-ifindex": 0 }'
[{'dp-ifindex': 3,
'masks-cache-size': 256,
'megaflow-stats': {'cache-hits': 0,
'mask-hit': 0,
'masks': 0,
'pad1': 0,
'padding': 0},
'name': 'test',
'stats': {'flows': 0, 'hit': 0, 'lost': 0, 'missed': 0},
'user-features': {'dispatch-upcall-per-cpu',
'tc-recirc-sharing',
'unaligned'}},
{'dp-ifindex': 48,
'masks-cache-size': 256,
'megaflow-stats': {'cache-hits': 0,
'mask-hit': 0,
'masks': 0,
'pad1': 0,
'padding': 0},
'name': 'demo',
'stats': {'flows': 0, 'hit': 0, 'lost': 0, 'missed': 0},
'user-features': set()}]
$ ./tools/net/ynl/cli.py \
--spec Documentation/netlink/specs/ovs_datapath.yaml \
--do dp-del --json '{ "dp-ifindex": 0, "name": "demo"}'
None
$ ./tools/net/ynl/cli.py \
--spec Documentation/netlink/specs/ovs_vport.yaml \
--dump vport-get --json '{ "dp-ifindex": 3 }'
[{'dp-ifindex': 3,
'ifindex': 3,
'name': 'test',
'port-no': 0,
'stats': {'rx-bytes': 0,
'rx-dropped': 0,
'rx-errors': 0,
'rx-packets': 0,
'tx-bytes': 0,
'tx-dropped': 0,
'tx-errors': 0,
'tx-packets': 0},
'type': 'internal',
'upcall-pid': [0],
'upcall-stats': {'fail': 0, 'success': 0}}]
Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.