vhost: integrate dmadev in asynchronous data-path

Since dmadev is introduced in 21.11, to avoid the overhead of vhost DMA
abstraction layer and simplify application logics, this patch integrates
dma

vhost: integrate dmadev in asynchronous data-path

Since dmadev is introduced in 21.11, to avoid the overhead of vhost DMA
abstraction layer and simplify application logics, this patch integrates
dmadev in asynchronous data path.

Signed-off-by: Jiayu Hu <[email protected]>
Signed-off-by: Sunil Pai G <[email protected]>
Tested-by: Yvonne Yang <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>

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examples: reduce indentation in build files

As with the lib and drivers directories, we can use "continue" keyword to
reduce the indentation level of the majority of the foreach block. At the
same t

examples: reduce indentation in build files

As with the lib and drivers directories, we can use "continue" keyword to
reduce the indentation level of the majority of the foreach block. At the
same time, we can also replace tab indentation with spaces.

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

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examples/vhost: fix ioat dependency

Fix vhost-switch compiling issue when ioat dependency is missing.
Change 'RTE_x86' check into 'RTE_RAW_IOAT' check in meson build file.
Use 'RTE_RAW_IOAT' to cont

examples/vhost: fix ioat dependency

Fix vhost-switch compiling issue when ioat dependency is missing.
Change 'RTE_x86' check into 'RTE_RAW_IOAT' check in meson build file.
Use 'RTE_RAW_IOAT' to control conditional compiling in source file.
Clean some codes.

Fixes: abec60e7115d ("examples/vhost: support vhost async data path")
Fixes: 3a04ecb21420 ("examples/vhost: add async vhost args parsing")

Reported-by: David Marchand <[email protected]>
Signed-off-by: Cheng Jiang <[email protected]>
Acked-by: Bruce Richardson <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>
Tested-by: David Marchand <[email protected]>

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examples: stop processing meson file if build impossible

Once it has been determined that an example cannot be built, there is
little point in continuing to process the meson.build file for that
exa

examples: stop processing meson file if build impossible

Once it has been determined that an example cannot be built, there is
little point in continuing to process the meson.build file for that
example, so we can use subdir_done() to return to the calling file.
This can potentially prevent problems where later statement in the file
may cause an error on systems where the app cannot be built, e.g. on
Windows or FreeBSD.

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

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examples/vhost: add async vhost args parsing

This patch is to add async vhost driver arguments parsing function
for CBDMA channel, DMA initiation function and args description.
The meson build file

examples/vhost: add async vhost args parsing

This patch is to add async vhost driver arguments parsing function
for CBDMA channel, DMA initiation function and args description.
The meson build file is changed to fix dependency problem. With
these arguments vhost device can be set to use CBDMA or CPU for
enqueue operation and bind vhost device with specific CBDMA channel
to accelerate data copy.

Signed-off-by: Cheng Jiang <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>

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build: increase readability via shortcut variables

Define variables for "is_linux", "is_freebsd" and "is_windows"
to make the code shorter for comparisons and more readable.

Signed-off-by: Bruce Ri

build: increase readability via shortcut variables

Define variables for "is_linux", "is_freebsd" and "is_windows"
to make the code shorter for comparisons and more readable.

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

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examples: disable unsupported examples on BSD build

When building with meson, set build to false when building unsupported
example apps on FreeBSD.

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

examples: disable unsupported examples on BSD build

When building with meson, set build to false when building unsupported
example apps on FreeBSD.

Signed-off-by: Bruce Richardson <[email protected]>
Tested-by: Harry van Haaren <[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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build: replace license text with SPDX tag

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

examples: build some samples with meson

Add support for having selected example apps built as part of a meson,
ninja build. By default none are built, and those to be built should be
named directly

examples: build some samples with meson

Add support for having selected example apps built as part of a meson,
ninja build. By default none are built, and those to be built should be
named directly in the -Dexamples='' meson configuration argument.

This is useful for developers working on a feature who want to use a
suitable example, or examples, to test that feature, as they can compile
everything up in one go, and run the example without having to do a ninja
install first.

This commit adds examples which don't consist of multiple apps in
subdirectories to the meson build, so they can be built by default by
passing -Dexamples parameter to meson.

Not included are the following examples:
* ethtool
* multi-process
* netmap_compat
* performance-thread
* quota_watermark
* server_node_efd
* vm_power_manager

To test the apps added here, use the following command, merged to one line,
to add them to your meson build (command to be run inside the build
directory):

meson configure -Dexamples=bbdev_app,bond,cmdline,distributor,\
eventdev_pipeline_sw_pmd, exception_path,helloworld,\
ip_fragmentation,ip_pipeline,ip_reassembly, ipsec-secgw,\
ipv4_multicast,kni,l2fwd-cat,l2fwd-crypto,l2fwd-jobstats,\
l2fwd-keepalive,l2fwd,l3fwd-acl,l3fwd-power,l3fwd-vf,l3fwd,\
link_status_interrupt,load_balancer,packet_ordering,ptpclient,\
qos_meter,qos_sched,rxtx_callbacks,skeleton,tep_termination,\
timer,vhost,vhost_scsi,vmdq,vmdq_dcb

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

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