Commit Graph

8 Commits

Author SHA1 Message Date
Flavia Musatescu
5c0bdc3203 telemetry: fix build with gcc 9
Suppress the unaligned packed member address warnings by extending
the telemetry library build flags with -Wno-address-of-packed-member
option, through the WERROR_FLAGS makefile variable.

With this change additional warnings are turned on to be treated as errors,
which causes the following build issues to be seen:
- no previous prototype [-Werror=missing-prototypes]
- initialization discards ‘const’ qualifier from pointer target type
  [-Werror=discarded-qualifiers]
- old-style function definition [-Werror=old-style-definition]
- variable may be used before its value is set (when using icc compiler).

Fixes: 0fe3a37924 ("telemetry: format json response when sending stats")
Fixes: ee5ff0d329 ("telemetry: add client feature and sockets")
Fixes: 8877ac688b ("telemetry: introduce infrastructure")
Fixes: 1b756087db ("telemetry: add parser for client socket messages")
Fixes: fff6df7bf5 ("telemetry: fix using ports of different types")
Fixes: 4080e46c80 ("telemetry: support global metrics")
Cc: stable@dpdk.org

Signed-off-by: Reshma Pattan <reshma.pattan@intel.com>
Signed-off-by: Flavia Musatescu <flavia.musatescu@intel.com>
Acked-by: Kevin Laatz <kevin.laatz@intel.com>
2019-07-04 18:48:04 +02:00
Bruce Richardson
759a5fb18e lib: add reasons for components being disabled
For each library where we optionally disable it, add in the reason why it's
being disabled, so the user knows how to fix it.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Luca Boccassi <bluca@debian.org>
2019-07-02 23:21:05 +02:00
Luca Boccassi
e30b4e566f build: improve dependency handling
Whenever possible (if the library ships a pkg-config file) use meson's
dependency() function to look for it, as it will automatically add it
to the Requires.private list if needed, to allow for static builds to
succeed for reverse dependencies of DPDK. Otherwise the recursive
dependencies are not parsed, and users doing static builds have to
resolve them manually by themselves.
When using this API avoid additional checks that are superfluous and
take extra time, and avoid adding the linker flag manually which causes
it to be duplicated.

Signed-off-by: Luca Boccassi <bluca@debian.org>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Tested-by: Bruce Richardson <bruce.richardson@intel.com>
2019-02-27 12:13:54 +01:00
Kevin Laatz
57ae0ec626 build: add dependency on telemetry to apps with meson
This patch adds telemetry as a dependecy to all applications. Without these
changes, the --telemetry flag will not be recognised and applications will
fail to run if they want to enable telemetry.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
2018-10-27 15:21:33 +02:00
Ciara Power
0fe3a37924 telemetry: format json response when sending stats
This patch adds functionality to create a JSON message in
order to send it to a client socket.

When stats are requested by a client, they are retrieved from
the metrics library and encoded in JSON format.

Signed-off-by: Ciara Power <ciara.power@intel.com>
Signed-off-by: Brian Archbold <brian.archbold@intel.com>
Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
2018-10-27 15:18:23 +02:00
Ciara Power
1b756087db telemetry: add parser for client socket messages
This patch adds the parser file. This is used to parse any
messages that are received on any of the client sockets.

Currently, the unregister functionality works using the parser.
Functionality relating to getting statistic values for certain ports
will be added in a subsequent patch, however the parsing involved
for that command is added in this patch.

Some of the parser code included is in preparation for future
functionality, that is not implemented yet in this patchset.

Signed-off-by: Ciara Power <ciara.power@intel.com>
Signed-off-by: Brian Archbold <brian.archbold@intel.com>
Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
2018-10-27 15:18:23 +02:00
Ciara Power
ee5ff0d329 telemetry: add client feature and sockets
This patch introduces clients to the telemetry API.

When a client makes a connection through the initial telemetry
socket, they can send a message through the socket to be
parsed. Register messages are expected through this socket, to
enable clients to register and have a client socket setup for
future communications.

A TAILQ is used to store all clients information. Using this, the
client sockets are polled for messages, which will later be parsed
and dealt with accordingly.

Functionality that make use of the client sockets were introduced
in this patch also, such as writing to client sockets, and sending
error responses.

Signed-off-by: Ciara Power <ciara.power@intel.com>
Signed-off-by: Brian Archbold <brian.archbold@intel.com>
Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
2018-10-27 15:18:23 +02:00
Ciara Power
8877ac688b telemetry: introduce infrastructure
This patch adds the infrastructure and initial code for the telemetry
library.

The telemetry init is registered with eal_init(). We can then check to see
if --telemetry was passed as an eal option. If --telemetry was parsed, then
we call telemetry init at the end of eal init.

Control threads are used to get CPU cycles for telemetry, which are
configured in this patch also.

Signed-off-by: Ciara Power <ciara.power@intel.com>
Signed-off-by: Brian Archbold <brian.archbold@intel.com>
Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
2018-10-27 15:18:20 +02:00