use C linkage where appropriate in headers

Assure that 'extern "C" { /../ }' do not cover files included from a
particular header file, and address minor issues resulting from this
change of order.

use C linkage where appropriate in headers

Assure that 'extern "C" { /../ }' do not cover files included from a
particular header file, and address minor issues resulting from this
change of order.

Dealing with C++ should delegate to the individual include file level,
rather than being imposed by the user of that file. For example,
forcing C linkage prevents __Generic macros being replaced with
overloaded static inline functions in C++ translation units.

Eliminate 'extern "C"' from files which do not declare any symbols
(e.g., only macros or struct types).

On the other hand, the headers check is too naive in assuming that all
headers must contain a 'extern "C"'. Such a check was added in commit
1ee492bdc4ff ("buildtools/chkincs: check missing C++ guards").
Since this current change results in many headers not containing such
a token, remove the check for 'extern "C"' until we have a better
implementation.

Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
Acked-by: Morten Brørup <mb@smartsharesystems.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>

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lib: move alignment attribute on types for MSVC

The current location used for __rte_aligned(a) for alignment of types
is not compatible with MSVC. There is only a single location accepted
by both to

lib: move alignment attribute on types for MSVC

The current location used for __rte_aligned(a) for alignment of types
is not compatible with MSVC. There is only a single location accepted
by both toolchains.

The standard offers no alignment facility that compatibly interoperates
with C and C++ but it may be achieved by relocating the placement of
__rte_aligned(a) to the aforementioned location accepted by all currently
supported toolchains.

To allow alignment for both compilers, do the following:

* Expand __rte_aligned(a) to __declspec(align(a)) when building
with MSVC.

* Move __rte_aligned from the end of {struct,union} definitions to
be between {struct,union} and tag.

The placement between {struct,union} and the tag allows the desired
alignment to be imparted on the type regardless of the toolchain being
used for all of GCC, LLVM, MSVC compilers building both C and C++.

Note: this move has an additional benefit as Doxygen is not confused
anymore like for the rte_event_vector struct definition.

Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
Acked-by: Morten Brørup <mb@smartsharesystems.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@huawei.com>
Acked-by: Chengwen Feng <fengchengwen@huawei.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>

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eventdev: promote some functions as stable

All API's in eventdev up to 22.11 release should be made stable.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Jerin Jacob <jeri

eventdev: promote some functions as stable

All API's in eventdev up to 22.11 release should be made stable.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Jerin Jacob <jerinj@marvell.com>

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eventdev: use stdatomic API

Replace the use of gcc builtin __atomic_xxx intrinsics with
corresponding rte_atomic_xxx optional stdatomic API

Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.c

eventdev: use stdatomic API

Replace the use of gcc builtin __atomic_xxx intrinsics with
corresponding rte_atomic_xxx optional stdatomic API

Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
Acked-by: David Marchand <david.marchand@redhat.com>

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remove C11 compatibility macro

C11 conformant compiler is documented as a minimum requirement to build
and consume DPDK.
Remove use of RTE_STD_C11 macro marking use of C11 features with
__extension_

remove C11 compatibility macro

C11 conformant compiler is documented as a minimum requirement to build
and consume DPDK.
Remove use of RTE_STD_C11 macro marking use of C11 features with
__extension__ since it is no longer necessary and then remove definition
of RTE_STD_C11 macro.

Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Morten Brørup <mb@smartsharesystems.com>

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lib: remove blank line ending comment blocks

At the end of a comment, no need for an extra line.

This pattern was fixed with the following command:
git ls lib | xargs sed -i '/^ *\* *$/{N;/ *\*\/ *

lib: remove blank line ending comment blocks

At the end of a comment, no need for an extra line.

This pattern was fixed with the following command:
git ls lib | xargs sed -i '/^ *\* *$/{N;/ *\*\/ *$/D;}'

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>

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eventdev/timer: get remaining ticks

Introduce an event timer adapter API which allows users to determine how
many adapter ticks remain until an event timer expires.

Signed-off-by: Erik Gabriel Carr

eventdev/timer: get remaining ticks

Introduce an event timer adapter API which allows users to determine how
many adapter ticks remain until an event timer expires.

Signed-off-by: Erik Gabriel Carrillo <erik.g.carrillo@intel.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

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eventdev/timer: update reconfigure logic

When rte_event_timer_adapter_create() is used for creating adapter
instance, eventdev is reconfigured with additional
``rte_event_dev_config::nb_event_ports`

eventdev/timer: update reconfigure logic

When rte_event_timer_adapter_create() is used for creating adapter
instance, eventdev is reconfigured with additional
``rte_event_dev_config::nb_event_ports`` parameter.

This eventdev reconfig logic is enhanced to increment the
``rte_event_dev_config::nb_single_link_event_port_queues``
parameter if the adapter event port config is of type
``RTE_EVENT_PORT_CFG_SINGLE_LINK``.

With this change the application is no longer need to configure the
eventdev with ``rte_event_dev_config::nb_single_link_event_port_queues``
parameter required for timer adapter when the adapter is created
using above mentioned API.

Signed-off-by: Naga Harish K S V <s.v.naga.harish.k@intel.com>
Acked-by: Abhinandan Gujjar <abhinandan.gujjar@intel.com>

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eventdev/timer: support periodic event timer

Add support to configure and use periodic event timers in
software timer adapter.

The structure ``rte_event_timer_adapter_stats`` is extended
by adding

eventdev/timer: support periodic event timer

Add support to configure and use periodic event timers in
software timer adapter.

The structure ``rte_event_timer_adapter_stats`` is extended
by adding a new field, ``evtim_drop_count``. This stat
represents the number of times an event_timer expiry event
is dropped by the event timer adapter.

Updated the software eventdev pmd timer_adapter_caps_get
callback function to report the support of periodic
event timer capability.

Signed-off-by: Naga Harish K S V <s.v.naga.harish.k@intel.com>
Acked-by: Erik Gabriel Carrillo <erik.g.carrillo@intel.com>

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replace zero-length arrays with flexible ones

This patch replaces instances of zero-sized arrays i.e. those at the end
of structures with "[0]" with the more standard syntax of "[]".
Replacement was

replace zero-length arrays with flexible ones

This patch replaces instances of zero-sized arrays i.e. those at the end
of structures with "[0]" with the more standard syntax of "[]".
Replacement was done using coccinelle script, with some revert and
cleanup of whitespace afterwards.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Morten Brørup <mb@smartsharesystems.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>

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lib: remove unneeded header includes

These header includes have been flagged by the iwyu_tool
and removed.

Signed-off-by: Sean Morrissey <sean.morrissey@intel.com>

eventdev: fix C++ include

The eventdev headers had issues when used from C++

* Missing closing "}" for the extern "C" block
* No automatic casting to/from void *

Fixes: a6562f6d6f8e ("eventdev: in

eventdev: fix C++ include

The eventdev headers had issues when used from C++

* Missing closing "}" for the extern "C" block
* No automatic casting to/from void *

Fixes: a6562f6d6f8e ("eventdev: introduce event timer adapter")
Fixes: 32e326869ed6 ("eventdev: add tracepoints")
Cc: stable@dpdk.org

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

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eventdev/timer: rearrange struct fields

Rearrange fields in rte_event_timer data structure to remove holes.
Also, remove use of volatile from rte_event_timer.

Signed-off-by: Pavan Nikhilesh <pbhaga

eventdev/timer: rearrange struct fields

Rearrange fields in rte_event_timer data structure to remove holes.
Also, remove use of volatile from rte_event_timer.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>

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eventdev: hide timer adapter PMD file

Hide rte_event_timer_adapter_pmd.h file as it is an internal file.
Remove rte_ prefix from rte_event_timer_adapter_ops structure.

Signed-off-by: Pavan Nikhiles

eventdev: hide timer adapter PMD file

Hide rte_event_timer_adapter_pmd.h file as it is an internal file.
Remove rte_ prefix from rte_event_timer_adapter_ops structure.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>

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lib: remove librte_ prefix from directory names

There is no reason for the DPDK libraries to all have 'librte_' prefix on
the directory names. This prefix makes the directory names longer and also
m

lib: remove librte_ prefix from directory names

There is no reason for the DPDK libraries to all have 'librte_' prefix on
the directory names. This prefix makes the directory names longer and also
makes it awkward to add features referring to individual libraries in the
build - should the lib names be specified with or without the prefix.
Therefore, we can just remove the library prefix and use the library's
unique name as the directory name, i.e. 'eal' rather than 'librte_eal'

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>

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