graph: improve node layout

The members "dispatch" and "xstat_off" of the structure "rte_node"
can be min cache aligned to make room for future expansion and to
make sure have better performance. Add

graph: improve node layout

The members "dispatch" and "xstat_off" of the structure "rte_node"
can be min cache aligned to make room for future expansion and to
make sure have better performance. Add corresponding comments.

Signed-off-by: Huichao Cai <chcchc88@163.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

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graph: support node xstats

Add ability for nodes to advertise xstat counters during registration
and increment them in fastpath.
Add support for retrieving/printing stats for node specific counters

graph: support node xstats

Add ability for nodes to advertise xstat counters during registration
and increment them in fastpath.
Add support for retrieving/printing stats for node specific counters
using rte_graph_cluster_stats_get().
Add rte_node_xstat_increment() API to increment node specific counters.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Acked-by: Kiran Kumar K <kirankumark@marvell.com>
Reviewed-by: Robin Jarry <rjarry@redhat.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

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graph: expose node context as pointers

In some cases, the node context data is used to store two pointers
because the data is larger than the reserved 16 bytes. Having to define
intermediate structu

graph: expose node context as pointers

In some cases, the node context data is used to store two pointers
because the data is larger than the reserved 16 bytes. Having to define
intermediate structures just to be able to cast is tedious. And without
intermediate structures, casting to opaque pointers is hard without
violating strict aliasing rules.

Add an unnamed union to allow storing opaque pointers in the node
context. Unfortunately, aligning an unnamed union that contains an array
produces inconsistent results between C and C++. To preserve ABI/API
compatibility in both C and C++, move all fast-path area fields into an
unnamed struct which is itself cache aligned. Use __rte_cache_aligned to
preserve existing alignment on architectures where cache lines are 128
bytes.

Add a static assert to ensure that the fast path area does not grow
beyond a 64 bytes cache line.

Signed-off-by: Robin Jarry <rjarry@redhat.com>
Acked-by: Kiran Kumar K <kirankumark@marvell.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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lib: use C11 alignment attribute on variables

The current location used for __rte_aligned(a) for alignment of
variables is not compatible with MSVC.

For variables, standard C11 offers alignas(a) su

lib: use C11 alignment attribute on variables

The current location used for __rte_aligned(a) for alignment of
variables is not compatible with MSVC.

For variables, standard C11 offers alignas(a) supported by conformant
compilers i.e. both MSVC and GCC.

Replace use of __rte_aligned(a) on variables/fields with alignas(a).

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>
Signed-off-by: David Marchand <david.marchand@redhat.com>

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graph: promote API as stable

The graph library has been marked experimental since initial
release in 2020. Time to take the training wheels off.

Signed-off-by: Stephen Hemminger <stephen@networkplu

graph: promote API as stable

The graph library has been marked experimental since initial
release in 2020. Time to take the training wheels off.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Zhirun Yan <zhirun.yan@intel.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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graph: add stats for mcore dispatch model

Add stats for mcore dispatch model if stats collection is
enabled.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Signed-off-by: Cunming Liang <cunming

graph: add stats for mcore dispatch model

Add stats for mcore dispatch model if stats collection is
enabled.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Signed-off-by: Cunming Liang <cunming.liang@intel.com>
Signed-off-by: Zhirun Yan <zhirun.yan@intel.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Pavan Nikhilesh <pbhagavatula@marvell.com>

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graph: add structure for stream moving between cores

Add graph_mcore_dispatch_wq_node to hold graph scheduling workqueue
node.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Signed-off-by: Cunm

graph: add structure for stream moving between cores

Add graph_mcore_dispatch_wq_node to hold graph scheduling workqueue
node.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Signed-off-by: Cunming Liang <cunming.liang@intel.com>
Signed-off-by: Zhirun Yan <zhirun.yan@intel.com>

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graph: add get/set graph worker model APIs

Add new get/set APIs to configure graph worker model which is used to
determine which model will be chosen.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.

graph: add get/set graph worker model APIs

Add new get/set APIs to configure graph worker model which is used to
determine which model will be chosen.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Signed-off-by: Cunming Liang <cunming.liang@intel.com>
Signed-off-by: Zhirun Yan <zhirun.yan@intel.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

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graph: move node process into inline function

Node process is a single and reusable block, move the code into an inline
function.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Signed-off-by: C

graph: move node process into inline function

Node process is a single and reusable block, move the code into an inline
function.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Signed-off-by: Cunming Liang <cunming.liang@intel.com>
Signed-off-by: Zhirun Yan <zhirun.yan@intel.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

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graph: split graph worker into common and default model

To support multiple graph worker model, split graph into common
and default. Naming the current walk function as rte_graph_model_rtc
cause the

graph: split graph worker into common and default model

To support multiple graph worker model, split graph into common
and default. Naming the current walk function as rte_graph_model_rtc
cause the default model is RTC(Run-to-completion).

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Signed-off-by: Cunming Liang <cunming.liang@intel.com>
Signed-off-by: Zhirun Yan <zhirun.yan@intel.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

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graph: rename rte graph worker header as common

Rename rte_graph_work.h to rte_graph_work_common.h for supporting
multiple graph worker model.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Sig

graph: rename rte graph worker header as common

Rename rte_graph_work.h to rte_graph_work_common.h for supporting
multiple graph worker model.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Signed-off-by: Cunming Liang <cunming.liang@intel.com>
Signed-off-by: Zhirun Yan <zhirun.yan@intel.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

show more ...