examples: fix pkg-config override

Move pkg-config override to beginning in the Makefile to allow
use PKGCONF variable to detect the libdpdk availability.

Fixes: fda34680eb9a ("examples: remove lega

examples: fix pkg-config override

Move pkg-config override to beginning in the Makefile to allow
use PKGCONF variable to detect the libdpdk availability.

Fixes: fda34680eb9a ("examples: remove legacy sections of makefiles")
Cc: [email protected]

Signed-off-by: Jerin Jacob <[email protected]>
Acked-by: Bruce Richardson <[email protected]>

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examples: warn about broken pkg-config

Since the examples are designed to be built by end-users using Make, we
can detect and warn about broken pkg-config on the user's system as part
of the build p

examples: warn about broken pkg-config

Since the examples are designed to be built by end-users using Make, we
can detect and warn about broken pkg-config on the user's system as part
of the build process.

Signed-off-by: Bruce Richardson <[email protected]>

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examples: restore trace point

Before make removal, those examples were built with experimental flag
for tracepoints to be compiled in but the pkg-config part of those
makefiles were missed.

Fixes:

examples: restore trace point

Before make removal, those examples were built with experimental flag
for tracepoints to be compiled in but the pkg-config part of those
makefiles were missed.

Fixes: 78d44153de8f ("ethdev: add tracepoints")
Cc: [email protected]

Signed-off-by: David Marchand <[email protected]>
Acked-by: Bruce Richardson <[email protected]>

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examples: fix linking against specific drivers

Some example apps rely on driver-specific functionality and link explicitly
against those drivers. These apps need their makefiles updated to take
acco

examples: fix linking against specific drivers

Some example apps rely on driver-specific functionality and link explicitly
against those drivers. These apps need their makefiles updated to take
account of the renaming of the driver libs.

Fixes: a20b2c01a7a1 ("build: standardize component names and defines")

Signed-off-by: Bruce Richardson <[email protected]>
Reviewed-by: David Marchand <[email protected]>

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examples/vm_power: convert to pkg-config-based build

Convert the makefiles to build using pkg-config
rather than the old build system.

Signed-off-by: Bruce Richardson <[email protected]>

ethdev: add tracepoints

Add tracepoints at important and mandatory APIs for tracing support.

Signed-off-by: Sunil Kumar Kori <[email protected]>
Acked-by: David Marchand <[email protected]>

examples: detect default build directory

Most examples have in their makefiles a default RTE_TARGET directory to be
used in case RTE_TARGET is not set. Rather than just using a hard-coded
default, w

examples: detect default build directory

Most examples have in their makefiles a default RTE_TARGET directory to be
used in case RTE_TARGET is not set. Rather than just using a hard-coded
default, we can instead detect what the build directory is relative to
RTE_SDK directory.

This fixes a potential issue for anyone who continues to build using
"make install T=x86_64-native-linuxapp-gcc" and skips setting RTE_TARGET
explicitly, instead relying on the fact that they were building in a
directory which corresponded to the example default path - which was
changed to "x86_64-native-linux-gcc" by commit 218c4e68c1d9 ("mk: use
linux and freebsd in config names").

Signed-off-by: Bruce Richardson <[email protected]>
Acked-by: Ferruh Yigit <[email protected]>

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mk: use linux and freebsd in config names

Rather than using linuxapp and bsdapp everywhere, we can change things to
use the, more readable, terms "linux" and "freebsd" in our build configs.
Rather t

mk: use linux and freebsd in config names

Rather than using linuxapp and bsdapp everywhere, we can change things to
use the, more readable, terms "linux" and "freebsd" in our build configs.
Rather than renaming the configs we can just duplicate the existing ones
with the new names using symlinks, and use the new names exclusively
internally. ["make showconfigs" also only shows the new names to keep the
list short] The result is that backward compatibility is kept fully but any
new builds or development can be done using the newer names, i.e. both
"make config T=x86_64-native-linuxapp-gcc" and "T=x86_64-native-linux-gcc"
work.

Signed-off-by: Bruce Richardson <[email protected]>

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examples/power: add JSON string handling

Add JSON string handling to vm_power_manager for JSON strings received
through the fifo. The format of the JSON strings are detailed in the
next patch, the v

examples/power: add JSON string handling

Add JSON string handling to vm_power_manager for JSON strings received
through the fifo. The format of the JSON strings are detailed in the
next patch, the vm_power_manager user guide documentation updates.

This patch introduces a new dependency on Jansson, a C library for
encoding, decoding and manipulating JSON data. To compile the sample app
you now need to have installed libjansson4 and libjansson-dev (these may
be named slightly differently depending on your Operating System)

Signed-off-by: David Hunt <[email protected]>
Acked-by: Anatoly Burakov <[email protected]>

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examples/vm_power: add oob monitoring functions

This patch introduces the out-of-band (oob) core monitoring
functions.

The functions are similar to the channel manager functions.
There are function

examples/vm_power: add oob monitoring functions

This patch introduces the out-of-band (oob) core monitoring
functions.

The functions are similar to the channel manager functions.
There are function to add and remove cores from the
list of cores being monitored. There is a function to initialise
the monitor setup, run the monitor thread, and exit the monitor.

The monitor thread runs in it's own lcore, and is separate
functionality to the channel monitor which is epoll based.
THis thread is timer based. It loops through all monitored cores,
calculates the branch ratio, scales up or down the core, then
sleeps for an interval (~250 uS).

The method it uses to read the branch counters is a pread on the
/dev/cpu/x/msr file, so the 'msr' kernel module needs to be loaded.
Also, since the msr.h file has been made unavailable in recent
kernels, we have #defines for the relevant MSRs included in the
code.

The makefile has a switch for x86 and non-x86 platforms,
and compiles stub function for non-x86 platforms.

Signed-off-by: David Hunt <[email protected]>
Acked-by: Radu Nicolau <[email protected]>

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examples/vm_power: add core list parameter

Add in the '-l' command line parameter (also --core-list)
So the user can now pass --corelist=4,6,8-10 and it will
expand out to 4,6,8,9,10 using the parse

examples/vm_power: add core list parameter

Add in the '-l' command line parameter (also --core-list)
So the user can now pass --corelist=4,6,8-10 and it will
expand out to 4,6,8,9,10 using the parse function provided
in parse.c (parse_set).

This list of cores is then used to enable out-of-band monitoring
to scale up and down these cores based on the ratio of branch
hits versus branch misses. The ratio will be low when a poll
loop is spinning with no packets being received, so the frequency
will be scaled down.

Also , as part of this change, we introduce a core_info struct
which keeps information on each core in the system, and whether
we're doing out of band monitoring on them.

Signed-off-by: David Hunt <[email protected]>
Acked-by: Radu Nicolau <[email protected]>

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ethdev: remove experimental flag of ports enumeration

The basic operations for ports enumeration should not be
considered as experimental in DPDK 18.05.

The iterator RTE_ETH_FOREACH_DEV was introdu

ethdev: remove experimental flag of ports enumeration

The basic operations for ports enumeration should not be
considered as experimental in DPDK 18.05.

The iterator RTE_ETH_FOREACH_DEV was introduced in DPDK 17.05.
It uses the function the rte_eth_find_next_owned_by() to get
only ownerless ports. Its API can be considered stable.
So the flag experimental is removed from rte_eth_find_next_owned_by().

The flag experimental is removed from rte_eth_dev_count_avail()
which is the new name of the old function rte_eth_dev_count().

The flag experimental is set to rte_eth_dev_count_total()
in the .c file for consistency with the declaration in the .h file.

A lot of internal applications are fixed to not allow experimental API.

Fixes: 8728ccf37615 ("fix ethdev ports enumeration")
Fixes: d9a42a69febf ("ethdev: deprecate port count function")
Fixes: e70e26861eaf ("net/mvpp2: fix build")

Signed-off-by: Thomas Monjalon <[email protected]>
Tested-by: David Marchand <[email protected]>

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fix ethdev ports enumeration

Some DPDK applications wrongly assume these requirements:
- no hotplug, i.e. ports are never detached
- all allocated ports are available to the application

Suc

fix ethdev ports enumeration

Some DPDK applications wrongly assume these requirements:
- no hotplug, i.e. ports are never detached
- all allocated ports are available to the application

Such application iterates over ports by its own mean.
The most common pattern is to request the port count and
assume ports with index in the range [0..count[ can be used.

There are three consequences when using such wrong design:
- new ports having an index higher than the port count won't be seen
- old ports being detached (RTE_ETH_DEV_UNUSED) can be seen as ghosts
- failsafe sub-devices (RTE_ETH_DEV_DEFERRED) will be seen by the application

Such mistake will be less common with growing hotplug awareness.
All applications and examples inside this repository - except testpmd -
must be fixed to use the iterator RTE_ETH_FOREACH_DEV.

Signed-off-by: Thomas Monjalon <[email protected]>

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examples: use pkg-config in makefiles

Change the example app Makefiles to query if DPDK is installed and
registered using pkg-config. If so, build directly using pkg-config info,
otherwise fall back

examples: use pkg-config in makefiles

Change the example app Makefiles to query if DPDK is installed and
registered using pkg-config. If so, build directly using pkg-config info,
otherwise fall back to using the original build system with RTE_SDK and
RTE_TARGET

This commit changes the makefiles for the basic examples, i.e. those which
do not have multiple subdirectories underneath the main examples dir.
Examples not covered are:

* ethtool
* multi_process
* performance-thread
* quota_watermark
* netmap_compat
* server_node_efd
* vm_power_manager

Signed-off-by: Bruce Richardson <[email protected]>
Reviewed-by: Luca Boccassi <[email protected]>

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examples: put app name and sources at top of makefiles

Reorder the text in the makefiles, so that the app name and the source
files are listed first. This then will allow them to be shared later in

examples: put app name and sources at top of makefiles

Reorder the text in the makefiles, so that the app name and the source
files are listed first. This then will allow them to be shared later in a
combined makefile building with pkg-config and RTE_SDK-based build system.

Signed-off-by: Bruce Richardson <[email protected]>
Reviewed-by: Luca Boccassi <[email protected]>

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examples: use SPDX tag for Intel copyright files

Replace the BSD license header with the SPDX tag for files
with only an Intel copyright on them.

Signed-off-by: Bruce Richardson <bruce.richardson@i

examples: use SPDX tag for Intel copyright files

Replace the BSD license header with the SPDX tag for files
with only an Intel copyright on them.

Signed-off-by: Bruce Richardson <[email protected]>

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examples/vm_power_mgr: add policy to channels

Signed-off-by: Nemanja Marjanovic <[email protected]>
Signed-off-by: Rory Sexton <[email protected]>
Signed-off-by: David Hunt <david.hun

examples/vm_power_mgr: add policy to channels

Signed-off-by: Nemanja Marjanovic <[email protected]>
Signed-off-by: Rory Sexton <[email protected]>
Signed-off-by: David Hunt <[email protected]>
Reviewed-by: Santosh Shukla <[email protected]>
Acked-by: Konstantin Ananyev <[email protected]>

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examples/vm_power_manager: fix libvirt dependency check

vm_power_manager utilize libvirt API virDomainGetVcpuPinInfo to
retrieve domU vcpu information. This API is implemented from version 0.9.3.
Su

examples/vm_power_manager: fix libvirt dependency check

vm_power_manager utilize libvirt API virDomainGetVcpuPinInfo to
retrieve domU vcpu information. This API is implemented from version 0.9.3.
Suse11 SP3 32bit default libvirt version is 0.8.8.

examples/vm_power_manager/channel_manager.c:
channel_manager.c:117:3: error: implicit declaration of function
'virDomainGetVcpuPinInfo'

Check and skip it from examples or raise an error when trying to compile
without libvirt or with a too old libvirt.

Fixes: e8ae9b662 ("examples/vm_power: channel manager and monitor in host")

Signed-off-by: Marvin Liu <[email protected]>
Signed-off-by: Thomas Monjalon <[email protected]>
Acked-by: Bruce Richardson <[email protected]>

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examples/vm_power: fix split of compiler and linker options

The argument -lvirt is a linker parameter, not a CFLAG.

Signed-off-by: Olivier Matz <[email protected]>

examples/vm_power: vm power management application

For launching CLI thread and Monitor thread and initialising
resources.
Requires a minimum of two lcores to run, additional cores specified by eal

examples/vm_power: vm power management application

For launching CLI thread and Monitor thread and initialising
resources.
Requires a minimum of two lcores to run, additional cores specified by eal core
mask are not used.

Signed-off-by: Alan Carew <[email protected]>
Signed-off-by: Pablo de Lara <[email protected]>

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